commit 823b09e9444a4e79163d92128b8f597de7f84b19
Author: jwinterm <johnwmurphy@gmail.com>
Date:   Sun Apr 27 09:03:16 2025 -0400

    Initial AI commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..81bbc2b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,35 @@
+# Node.js dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Logs
+logs/
+*.log
+*.tlog
+*.out
+*.pid
+*.gz
+
+# Environment variables
+.env
+
+# Build files
+dist/
+build/
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS generated files
+.DS_Store
+Thumbs.db
diff --git a/dbcalls.js b/dbcalls.js
new file mode 100644
index 0000000..07f4fe5
--- /dev/null
+++ b/dbcalls.js
@@ -0,0 +1,67 @@
+const { Client } = require('pg');
+
+const client = new Client({
+   user: 'postgres',
+   host: 'localhost',
+   database: 'bitdungeon',
+   password: 'postgres',
+   port: 5432,
+});
+client.connect();
+
+// Add this function to create the necessary table if it doesn't exist
+function initializeDatabase() {
+    const createTableQuery = `
+        CREATE TABLE IF NOT EXISTS visitors (
+            id SERIAL PRIMARY KEY,
+            socketid VARCHAR(255) NOT NULL,
+            ip VARCHAR(100) NOT NULL,
+            time BIGINT NOT NULL
+        )
+    `;
+    
+    client.query(createTableQuery)
+        .then(() => console.log("Database initialized"))
+        .catch(err => console.error("Database initialization error:", err));
+}
+
+// Call this function when starting up
+initializeDatabase();
+
+// String for inserting new visitor
+const insertVisitorText = 'INSERT INTO visitors(socketid, ip, time) VALUES($1, $2, $3)';
+// Function for inserting new visitor and returning ID#
+function insertVisitor(socketid, ip, cookie) {
+    values = [socketid, ip, Math.floor(new Date() / 1000)];
+    
+    // First check if table exists to prevent errors
+    client.query("SELECT to_regclass('visitors')", (err, res) => {
+        if (err) {
+            console.error("Database check error:", err);
+            return;
+        }
+        
+        // If table doesn't exist yet, try to initialize again
+        if (res.rows[0].to_regclass === null) {
+            console.log("Table 'visitors' doesn't exist yet, creating it now...");
+            initializeDatabase();
+            return;
+        }
+        
+        // Insert the visitor
+        client.query(insertVisitorText, values, (err, res) => {
+            if (err) {
+                console.log(err.stack);
+            } else if (res.rows && res.rows[0]) {
+                console.log("Visitor inserted:", res.rows[0]);
+            } else {
+                console.log("Visitor inserted");
+            }
+        });
+    });
+}
+
+
+module.exports = {
+    insertVisitor: insertVisitor
+}
diff --git a/game.js b/game.js
new file mode 100644
index 0000000..c4c8432
--- /dev/null
+++ b/game.js
@@ -0,0 +1,186 @@
+const ROT = require('./rot.js');
+
+// Define the missing generateDungeon function
+function generateDungeon(width, height) {
+  // Create dungeon using ROT.js Map.Digger
+  const digger = new ROT.Map.Digger(width, height, {
+    roomWidth: [3, 9],
+    roomHeight: [3, 7],
+    corridorLength: [2, 6],
+    dugPercentage: 0.2
+  });
+  
+  // Initialize the empty map with walls (1)
+  const map = Array(height).fill().map(() => Array(width).fill(1));
+  
+  // Fill in floors (0) using digger's callback
+  digger.create((x, y, value) => {
+    // value: 0 = floor, 1 = wall
+    map[y][x] = value;
+  });
+  
+  // Get rooms that were created
+  const rooms = digger.getRooms();
+  
+  // Place entrance in the first room
+  const entranceRoom = rooms[0];
+  const entranceCenter = entranceRoom.getCenter();
+  const entrance = [entranceCenter[0], entranceCenter[1]];
+  
+  // Place exit in the last room
+  const exitRoom = rooms[rooms.length - 1];
+  const exitCenter = exitRoom.getCenter();
+  const exit = [exitCenter[0], exitCenter[1]];
+  
+  // Place treasure in a middle room (not first or last)
+  let treasureRoom;
+  if (rooms.length > 2) {
+    treasureRoom = rooms[Math.floor(rooms.length / 2)];
+  } else {
+    // Fallback if we have fewer than 3 rooms
+    treasureRoom = rooms[0];
+  }
+  const treasureCenter = treasureRoom.getCenter();
+  // Place treasure slightly off center to make it more interesting
+  const treasure = [
+    treasureCenter[0] + Math.floor(Math.random() * 3) - 1,
+    treasureCenter[1] + Math.floor(Math.random() * 3) - 1
+  ];
+  
+  // Ensure the treasure is on a floor tile
+  if (map[treasure[1]][treasure[0]] !== 0) {
+    treasure[0] = treasureCenter[0];
+    treasure[1] = treasureCenter[1];
+  }
+  
+  return {
+    map: map,
+    rooms: rooms, 
+    entrance: entrance,
+    exit: exit,
+    treasure: treasure
+  };
+}
+
+class Game {
+  constructor(socketId, mapWidth, mapHeight) {
+    this.socketId = socketId;
+    this.width = mapWidth || 50;
+    this.height = mapHeight || 30;
+    this.gameState = 'waiting'; // waiting, active, won, lost
+    this.startBlock = null;
+    this.dungeon = null;
+    this.player = { x: 0, y: 0, hasKey: false, hasTreasure: false };
+    this.monster = { x: 0, y: 0 };
+    this.fee = 0; // Amount player paid
+    this.generateDungeon();
+  }
+  
+  generateDungeon() {
+    const dungeon = generateDungeon(this.width, this.height);
+    this.dungeon = dungeon;
+    
+    if (dungeon.entrance) {
+      this.player.x = dungeon.entrance[0];
+      this.player.y = dungeon.entrance[1];
+    }
+    
+    // Place monster far from entrance
+    if (dungeon.rooms && dungeon.rooms.length > 2) {
+      const monsterRoom = dungeon.rooms[Math.floor(dungeon.rooms.length * 0.7)];
+      const center = monsterRoom.getCenter();
+      this.monster.x = center[0];
+      this.monster.y = center[1];
+    }
+  }
+  
+  movePlayer(dx, dy) {
+    const newX = this.player.x + dx;
+    const newY = this.player.y + dy;
+    
+    // Check if the move is valid (not into a wall)
+    if (this.dungeon.map[newY][newX] === 0) {
+      this.player.x = newX;
+      this.player.y = newY;
+      
+      // Check if player found treasure
+      if (this.dungeon.treasure && 
+          newX === this.dungeon.treasure[0] && 
+          newY === this.dungeon.treasure[1]) {
+        this.player.hasTreasure = true;
+      }
+      
+      // Check if player reached exit
+      if (this.dungeon.exit && 
+          newX === this.dungeon.exit[0] && 
+          newY === this.dungeon.exit[1]) {
+        this.gameState = 'won';
+        return { status: 'won', hasTreasure: this.player.hasTreasure };
+      }
+      
+      // Move monster after player moves
+      this.moveMonster();
+      
+      // Check if monster caught player
+      if (this.monster.x === this.player.x && this.monster.y === this.player.y) {
+        this.gameState = 'lost';
+        return { status: 'lost', reason: 'caught' };
+      }
+      
+      return { status: 'moved' };
+    }
+    
+    return { status: 'invalid' };
+  }
+  
+  moveMonster() {
+    // Simple monster AI to move toward player
+    const dx = Math.sign(this.player.x - this.monster.x);
+    const dy = Math.sign(this.player.y - this.monster.y);
+    
+    // Try horizontal move
+    if (dx !== 0) {
+      if (this.dungeon.map[this.monster.y][this.monster.x + dx] === 0) {
+        this.monster.x += dx;
+        return;
+      }
+    }
+    
+    // Try vertical move
+    if (dy !== 0) {
+      if (this.dungeon.map[this.monster.y + dy][this.monster.x] === 0) {
+        this.monster.y += dy;
+        return;
+      }
+    }
+    
+    // Try random direction if direct path is blocked
+    const dirs = [[0,1],[1,0],[0,-1],[-1,0]];
+    const shuffledDirs = ROT.RNG.shuffle(dirs.slice());
+    
+    for (const [dx, dy] of shuffledDirs) {
+      const nx = this.monster.x + dx;
+      const ny = this.monster.y + dy;
+      if (this.dungeon.map[ny] && this.dungeon.map[ny][nx] === 0) {
+        this.monster.x = nx;
+        this.monster.y = ny;
+        break;
+      }
+    }
+  }
+  
+  getState() {
+    return {
+      gameState: this.gameState,
+      player: this.player,
+      monster: this.monster,
+      map: this.dungeon.map,
+      entrance: this.dungeon.entrance,
+      exit: this.dungeon.exit,
+      treasure: this.dungeon.treasure,
+      hasTreasure: this.player.hasTreasure
+    };
+  }
+}
+
+module.exports = Game;
\ No newline at end of file
diff --git a/html/favicon.ico b/html/favicon.ico
new file mode 100644
index 0000000..8585e95
Binary files /dev/null and b/html/favicon.ico differ
diff --git a/html/index.html b/html/index.html
new file mode 100644
index 0000000..cad0755
--- /dev/null
+++ b/html/index.html
@@ -0,0 +1,207 @@
+<!DOCTYPE html>
+<html>
+   <head>
+      <title>Wowgue</title>
+      <link rel="stylesheet" type="text/css" href="styles/stylesheet.css">
+      <link rel="icon" type="image/x-icon" href="favicon.ico">
+   </head>
+   <body>
+      <div class='wrapper'>
+         <div class='header'>
+            <h1 id='staticbanner'><span id='banner'></span><span id='bannercursor'></span></h1>
+         </div>
+         <!-- Status area (block height) -->
+         <div class='status'>
+            Block height: <span id="blockheight">0</span>
+         </div>
+         <!-- Chat area -->
+         <div class='chat'>
+            <div id='messageBox'>
+               <ul id='messages'>
+                  <li>Welcome to Wowgue!</li>
+                  <li>Type 'hello' to begin</li>
+               </ul>
+            </div>
+         </div>
+         <!-- Main game display -->
+         <div class='rotdis'></div>
+         <!-- Input area -->
+         <div id='messageInput'>
+            <form action="" id='chatForm'>
+               <input autocomplete="off" id='chatInput' />
+               <button>Send</button>
+            </form>
+         </div>
+         <div class="footer">
+            footer
+         </div>
+      </div>
+      
+      <script src="js/jquery-3.4.1.min.js"></script>
+      <script src="js/options.js"></script>
+      <script src="js/game.js"></script>
+      <script src="js/rot.min.js"></script>
+      <script src="https://cdn.socket.io/4.8.1/socket.io.min.js"></script>
+      <script src="js/teletype.js"></script>
+      <script>
+         // Initialize socket connection
+         var socket = io();
+         
+         // Socket event listeners
+         $(function() {
+             // Welcome message - when server confirms connection
+             socket.on('welcome', function(msg) {
+                 console.log('Received welcome:', msg);
+                 $('#messages').append($('<li>').text("Connected to server!"));
+                 scrollChat();
+             });
+             
+             // Blockheight update
+             socket.on('blockheight', function(msg) {
+                 $('#blockheight').text(msg);
+             });
+             
+             // Regular chat messages
+             socket.on('message', function(msg) {
+                 console.log('Received message:', msg);
+                 $('#messages').append($('<li>').text(msg));
+                 scrollChat();
+             });
+             
+             // Payment request (we'll handle this later)
+             socket.on('payment_request', function(data) {
+                 console.log('Payment request:', data);
+                 $('#messages').append($('<li class="payment">').text(
+                     "Send between " + data.minFee + " and " + data.maxFee + " WOW to: " + data.address
+                 ));
+                 scrollChat();
+             });
+             
+             // Game start event
+             socket.on('game_start', function(data) {
+                 console.log('Game starting:', data);
+                 $('#messages').append($('<li class="game-start">').text("Starting game..."));
+                 scrollChat();
+                 
+                 // Start the game with the received data
+                 Game.startGame(data);
+                 Game._drawGameScreen(); // Draw the initial game screen
+             });
+             
+             // Game update event
+             socket.on('game_update', function(data) {
+                 console.log('Game update:', data);
+                 
+                 // Update game state
+                 Game._player = data.player;
+                 Game._monster = data.monster;
+                 
+                 // Redraw the game screen
+                 Game._drawGameScreen();
+             });
+             
+             // Game over event
+             socket.on('game_over', function(data) {
+                 console.log('Game over:', data);
+                 
+                 // Handle game over state
+                 if (data.status === 'won') {
+                     Game._drawWinScreen(data.hasTreasure);
+                     $('#messages').append($('<li class="win">').text(
+                         "You won! " + (data.hasTreasure ? "You found the treasure!" : "")
+                     ));
+                 } else {
+                     Game._drawLoseScreen(data.reason);
+                     $('#messages').append($('<li class="lose">').text(
+                         "Game over: " + data.reason
+                     ));
+                 }
+                 scrollChat();
+             });
+             
+             // Handle chat form submission
+             $('#chatForm').submit(function(e) {
+                 e.preventDefault(); // Prevent page reload
+                 var message = $('#chatInput').val();
+                 
+                 if (message.trim() !== '') {
+                     // Send message to server
+                     socket.emit('chat message', message);
+                     
+                     // Special handling for commands
+                     if (message.toLowerCase() === 'enter') {
+                         $('#messages').append($('<li class="self-command">').text(
+                             "Requesting to enter the dungeon..."
+                         ));
+                     }
+                     
+                     // Clear input field
+                     $('#chatInput').val('');
+                 }
+                 return false;
+             });
+             
+             // Helper function to scroll chat to bottom
+             function scrollChat() {
+                 var messageBox = $('#messageBox');
+                 messageBox.scrollTop(messageBox.prop("scrollHeight"));
+             }
+         });
+      </script>
+      
+      <!-- Game initialization -->
+      <script>
+         // Function to initialize the game and append its display
+         function initializeAndAppendDisplay() {
+            console.log("Initializing Game...");
+            Game.init();
+            
+            if (!Game.getDisplay()) {
+               console.error("Game display object not found after Game.init(). Cannot append.");
+               return;
+            }
+            
+            var displayContainer = Game.getDisplay().getContainer();
+            var targetElement = $('.rotdis');
+            if (targetElement.length > 0) {
+               targetElement.append(displayContainer);
+               console.log("ROT display appended to .rotdis");
+            } else {
+               console.error("Target element '.rotdis' not found.");
+               document.body.appendChild(displayContainer);
+            }
+         }
+         
+         $(function() {
+             // Wait for tileset to be loaded, then initialize game
+             if (tileSetLoaded) {
+                initializeAndAppendDisplay();
+             } else {
+                console.log("Tileset not loaded yet, waiting for onload...");
+                tileSet.addEventListener('load', function() {
+                    initializeAndAppendDisplay();
+                });
+             }
+         });
+      </script>
+      <script>
+         $(function() {
+            // Initialize teletype only after DOM is ready
+            $('#banner').teletype({
+               text: ["Welcome traveler...", "You have arrived at...", "The Wowngeon"]
+            });
+            $('#bannercursor').teletype({
+               text: ['|', ' '], 
+               delay: 0, 
+               pause: 500
+            });
+            
+            // Add timeout to change text after animation completes
+            setTimeout(function() {
+               $('#banner, #bannercursor').remove();
+               $('#staticbanner').text("The Wowngeon");
+            }, 14340);
+         });
+      </script>
+   </body>
+</html>
diff --git a/html/js/game.js b/html/js/game.js
new file mode 100644
index 0000000..6e19788
--- /dev/null
+++ b/html/js/game.js
@@ -0,0 +1,227 @@
+var Game = {
+    // Change dimensions to match the display options (25 × 19 tiles)
+    _screenWidth: 25,   // Used for drawing coordinates (columns)
+    _screenHeight: 19,  // Used for drawing coordinates (rows)
+    _mapWidth: 25,      // Logical map width (should match display)
+    _mapHeight: 19,     // Logical map height (should match display)
+    _display: null,
+    _map: null,
+    _player: null,
+    _monster: null,
+    _exit: null,
+    _entrance: null,
+    _treasure: null,
+    _gameActive: false,
+    _message: "", // To display messages like 'waiting'
+
+    init: function() {
+        // Assuming 'options' is defined globally or passed correctly
+        console.log("Creating ROT.Display with options:", options);
+        try {
+            this._display = new ROT.Display(options);
+            console.log("ROT.Display created.");
+            // Do not append here; we use external logic to append container
+        } catch (e) {
+            console.error("Error creating ROT.Display:", e);
+            alert("Failed to initialize display. Check console for errors.");
+            return;
+        }
+
+        // Initialize empty map representation based on _mapWidth and _mapHeight
+        this._map = [];
+        for (var i = 0; i < this._mapWidth; i++) {
+            this._map[i] = [];
+            for (var j = 0; j < this._mapHeight; j++) {
+                // Default to wall visually; adjust as needed
+                this._map[i][j] = 1;
+            }
+        }
+
+        var game = this;
+        // Set up keyboard input
+        window.addEventListener("keydown", function(e) {
+            var code = e.keyCode;
+
+            // If game isn't active, ignore all keys except Enter
+            if (!game._gameActive && code !== 13) {
+                return;
+            }
+
+            // Enter key to start game
+            if (code === 13 && !game._gameActive) {
+                console.log("Enter pressed, sending 'enter' message to server.");
+                socket.emit('chat message', 'enter');
+                game._message = "Connecting...";
+                game._drawWelcomeScreen();
+                e.preventDefault();
+                return;
+            }
+
+            // Movement controls
+            var direction = "";
+            switch (code) {
+                case 38: case 75: case 87: // up, k, w
+                    direction = "up";
+                    break;
+                case 40: case 74: case 83: // down, j, s
+                    direction = "down";
+                    break;
+                case 37: case 72: case 65: // left, h, a
+                    direction = "left";
+                    break;
+                case 39: case 76: case 68: // right, l, d
+                    direction = "right";
+                    break;
+                default:
+                    return;
+            }
+
+            if (direction && game._gameActive) {
+                socket.emit('move', direction);
+                e.preventDefault();
+            }
+        });
+
+        // Draw welcome screen
+        this._message = "Press Enter or type 'enter' to Play!";
+        this._drawWelcomeScreen();
+    },
+
+    // Initialize game with data from server
+    startGame: function(data) {
+        console.log("Starting game with data:", data);
+        
+        this._map = data.map;
+        this._player = data.player;
+        this._monster = data.monster;
+        this._entrance = data.entrance;
+        this._exit = data.exit;
+        this._treasure = data.treasure;
+        this._gameActive = true;
+        
+        this._drawGameScreen();
+    },
+
+    clearDisplay: function() {
+        // Clear the entire display area
+        this._display.clear();
+    },
+
+    _drawGameScreen: function() {
+        this.clearDisplay();
+
+        // Draw map
+        for (var x = 0; x < this._mapWidth; x++) {
+            for (var y = 0; y < this._mapHeight; y++) {
+                var tile = this._map[y] && this._map[y][x] ? this._map[y][x] : 1;
+                
+                if (tile === 0) {
+                    this._display.draw(x, y, "'", "#fff"); // Floor
+                } else {
+                    this._display.draw(x, y, "#", "#777"); // Wall
+                }
+            }
+        }
+
+        // Draw special features
+        if (this._entrance) {
+            this._display.draw(this._entrance[0], this._entrance[1], "<", "#0f0");
+        }
+        
+        if (this._exit) {
+            this._display.draw(this._exit[0], this._exit[1], ">", "#0f0");
+        }
+        
+        if (this._treasure && (!this._player || !this._player.hasTreasure)) {
+            this._display.draw(this._treasure[0], this._treasure[1], "$", "#ff0");
+        }
+
+        // Draw player
+        if (this._player) {
+            this._display.draw(this._player.x, this._player.y, "@", "#fff");
+        }
+
+        // Draw monster
+        if (this._monster) {
+            this._display.draw(this._monster.x, this._monster.y, "~", "#f00");
+        }
+
+        // Draw status line
+        var statusY = this._mapHeight; // Position below map
+        this._display.drawText(0, statusY, "--------------------------------------------------------------------------------"); // Separator
+        statusY++;
+
+        var statusLine = `Use Arrows/WASD/HJKL. Find ($) and reach exit (>). Avoid (~).`;
+        if (this._player && this._player.hasTreasure) {
+            statusLine = "You have the treasure ($)! Reach the exit (>)!";
+        }
+        this._display.drawText(1, statusY, statusLine);
+    },
+
+    _drawWelcomeScreen: function() {
+        this.clearDisplay();
+        var y = 5;
+        this._display.drawText(this._screenWidth / 2 - 5, y++, "%c{yellow}WOWGUE");
+        y++;
+        y+=2;
+        this._display.drawText(this._screenWidth / 2 - 10, y++, "@ - This is you");
+        this._display.drawText(this._screenWidth / 2 - 10, y++, "> - Escape the dungeon");
+        this._display.drawText(this._screenWidth / 2 - 10, y++, "~ - Avoid the monster");
+        this._display.drawText(this._screenWidth / 2 - 10, y++, "$ - Find the treasure");
+        y+=2;
+        // Display dynamic message (like waiting or error)
+        if (this._message) {
+             this._display.drawText(this._screenWidth / 2 - this._message.length / 2, y++, `%c{yellow}${this._message}`);
+        }
+    },
+
+    _drawWinScreen: function(hasTreasure) {
+        this.clearDisplay();
+        var y = 5;
+        this._display.drawText(this._screenWidth / 2 - 5, y++, "%c{green}YOU WIN!");
+        y++;
+        
+        if (hasTreasure) {
+            this._display.drawText(this._screenWidth / 2 - 15, y++, "You found the treasure and escaped!");
+        } else {
+            this._display.drawText(this._screenWidth / 2 - 10, y++, "You escaped the dungeon!");
+        }
+        
+        y++;
+        this._gameActive = false;
+        this._message = "Press Enter to Play Again!";
+        this._display.drawText(this._screenWidth / 2 - (this._message.length / 2), y++, `%c{yellow}${this._message}`);
+    },
+
+    _drawLoseScreen: function(reason) {
+        this.clearDisplay();
+        var y = 5;
+        this._display.drawText(this._screenWidth / 2 - 5, y++, "%c{red}GAME OVER!");
+        y++;
+
+        if (reason === 'timeout') {
+            this._display.drawText(this._screenWidth / 2 - 20, y++, "You didn't escape before the next block!");
+        } else if (reason === 'caught') {
+            this._display.drawText(this._screenWidth / 2 - 15, y++, "The monster caught you!");
+        } else {
+             this._display.drawText(this._screenWidth / 2 - 10, y++, `Reason: ${reason}`);
+        }
+        
+        y++;
+        this._gameActive = false;
+        this._message = "Press Enter to Play Again!";
+        this._display.drawText(this._screenWidth / 2 - (this._message.length / 2), y++, `%c{yellow}${this._message}`);
+    },
+
+    getDisplay: function() {
+        return this._display;
+    },
+    
+    getScreenWidth: function() {
+        return this._screenWidth;
+    },
+    
+    getScreenHeight: function() {
+        return this._screenHeight;
+    }
+};
\ No newline at end of file
diff --git a/html/js/jquery-3.4.1.min.js b/html/js/jquery-3.4.1.min.js
new file mode 100644
index 0000000..a1c07fd
--- /dev/null
+++ b/html/js/jquery-3.4.1.min.js
@@ -0,0 +1,2 @@
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diff --git a/html/js/options.js b/html/js/options.js
new file mode 100644
index 0000000..e939726
--- /dev/null
+++ b/html/js/options.js
@@ -0,0 +1,119 @@
+var tileSet = document.createElement("img");
+var tileSetLoaded = false; // Flag to track loading status
+
+tileSet.onload = function() {
+    console.log("Tileset image loaded successfully.");
+    tileSetLoaded = true;
+    // If Game.init was waiting, maybe trigger it now (handled in index.html)
+};
+tileSet.onerror = function() {
+    console.error("Failed to load tileset image!");
+    // Handle error appropriately - maybe fallback to a different layout?
+};
+tileSet.src = "tiles.png"; // Set src AFTER setting onload/onerror
+
+var options = {
+    layout: "tile",
+    bg: "#000", // Black background instead of transparent for better visibility
+    // Adjusted dimensions for ~800x600 display
+    width: 25, // 25 tiles * 32px/tile = 800px
+    height: 19, // 19 tiles * 32px/tile = 608px
+    tileWidth: 32, // Width of a single tile in pixels
+    tileHeight: 32, // Height of a single tile in pixels
+    tileSet: tileSet,
+    tileMap: {
+        // Keep your existing tile mappings
+        "'": [0, 0],  // Floor
+        ">": [32, 0],  // Exit
+        "@": [64, 0],  // Player
+        "~": [96, 0], // Monster
+        "<": [0, 32],   // Entrance
+        "=": [32, 32],  // Monster Entrance
+        "#": [64, 32], // Wall
+        "$": [96, 32], // Treasure
+        // ... include all other necessary character mappings ...
+        "a": [128, 0],
+        "b": [160, 0],
+        "c": [192, 0],
+        "d": [224, 0],
+        "e": [256, 0],
+        "f": [288, 0],
+        "g": [320, 0],
+        "h": [352, 0],
+        "i": [384, 0],
+        "j": [416, 0],
+        "k": [448, 0],
+        "l": [480, 0],
+        "m": [512, 0], // Duplicate M? Ensure one is correct
+        "n": [544, 0],
+        "o": [576, 0],
+        "p": [608, 0],
+        "q": [640, 0],
+        "r": [672, 0],
+        "s": [704, 0],
+        "t": [736, 0],
+        "u": [768, 0],
+        "v": [800, 0],
+        "w": [832, 0],
+        "x": [864, 0],
+        "y": [896, 0],
+        "z": [928, 0],
+        "A": [128, 32],
+        "B": [160, 32],
+        "C": [192, 32],
+        "D": [224, 32],
+        "E": [256, 32],
+        "F": [288, 32],
+        "G": [320, 32],
+        "H": [352, 32],
+        "I": [384, 32],
+        "J": [416, 32],
+        "K": [448, 32],
+        "L": [480, 32],
+        "M": [512, 32], // Already mapped M
+        "N": [544, 32],
+        "O": [576, 32],
+        "P": [608, 32],
+        "Q": [640, 32],
+        "R": [672, 32],
+        "S": [704, 32],
+        "T": [736, 32],
+        "U": [768, 32],
+        "V": [800, 32],
+        "W": [832, 32],
+        "X": [864, 32],
+        "Y": [896, 32],
+        "Z": [928, 32],
+        "&": [0, 64],
+        "-": [32, 64],
+        "+": [64, 64],
+        "`": [96, 64],
+        "0": [128, 64],
+        "1": [160, 64],
+        "2": [192, 64],
+        "3": [224, 64],
+        "4": [256, 64],
+        "5": [288, 64],
+        "6": [320, 64],
+        "7": [352, 64],
+        "8": [384, 64],
+        "9": [416, 64],
+        ".": [448, 64],
+        ":": [480, 64],
+        ",": [512, 64],
+        ";": [544, 64],
+        "(": [576, 64],
+        "*": [608, 64],
+        "!": [640, 64],
+        "?": [672, 64],
+        "}": [704, 64],
+        "^": [736, 64],
+        ")": [768, 64],
+        "[": [800, 64],
+        "]": [832, 64],
+        "{": [864, 64],
+        "%": [896, 64],
+        "^": [928, 64], // Duplicate ^
+        " ": [992, 64]
+    }
+};
diff --git a/html/js/rot.js b/html/js/rot.js
new file mode 100644
index 0000000..03f3919
--- /dev/null
+++ b/html/js/rot.js
@@ -0,0 +1,7228 @@
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
+
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : typeof define === 'function' && define.amd ? define(['exports'], factory) : factory(global.ROT = {});
+})(this, function (exports) {
+  'use strict';
+  /**
+   * This code is an implementation of Alea algorithm; (C) 2010 Johannes Baagøe.
+   * Alea is licensed according to the http://en.wikipedia.org/wiki/MIT_License.
+   */
+
+  var FRAC = 2.3283064365386963e-10;
+  /* 2^-32 */
+
+  var RNG =
+  /*#__PURE__*/
+  function () {
+    function RNG() {
+      this._seed = 0;
+      this._s0 = 0;
+      this._s1 = 0;
+      this._s2 = 0;
+      this._c = 0;
+    }
+
+    var _proto = RNG.prototype;
+
+    _proto.getSeed = function getSeed() {
+      return this._seed;
+    };
+    /**
+     * Seed the number generator
+     */
+
+
+    _proto.setSeed = function setSeed(seed) {
+      seed = seed < 1 ? 1 / seed : seed;
+      this._seed = seed;
+      this._s0 = (seed >>> 0) * FRAC;
+      seed = seed * 69069 + 1 >>> 0;
+      this._s1 = seed * FRAC;
+      seed = seed * 69069 + 1 >>> 0;
+      this._s2 = seed * FRAC;
+      this._c = 1;
+      return this;
+    };
+    /**
+     * @returns Pseudorandom value [0,1), uniformly distributed
+     */
+
+
+    _proto.getUniform = function getUniform() {
+      var t = 2091639 * this._s0 + this._c * FRAC;
+      this._s0 = this._s1;
+      this._s1 = this._s2;
+      this._c = t | 0;
+      this._s2 = t - this._c;
+      return this._s2;
+    };
+    /**
+     * @param lowerBound The lower end of the range to return a value from, inclusive
+     * @param upperBound The upper end of the range to return a value from, inclusive
+     * @returns Pseudorandom value [lowerBound, upperBound], using ROT.RNG.getUniform() to distribute the value
+     */
+
+
+    _proto.getUniformInt = function getUniformInt(lowerBound, upperBound) {
+      var max = Math.max(lowerBound, upperBound);
+      var min = Math.min(lowerBound, upperBound);
+      return Math.floor(this.getUniform() * (max - min + 1)) + min;
+    };
+    /**
+     * @param mean Mean value
+     * @param stddev Standard deviation. ~95% of the absolute values will be lower than 2*stddev.
+     * @returns A normally distributed pseudorandom value
+     */
+
+
+    _proto.getNormal = function getNormal(mean, stddev) {
+      if (mean === void 0) {
+        mean = 0;
+      }
+
+      if (stddev === void 0) {
+        stddev = 1;
+      }
+
+      var u, v, r;
+
+      do {
+        u = 2 * this.getUniform() - 1;
+        v = 2 * this.getUniform() - 1;
+        r = u * u + v * v;
+      } while (r > 1 || r == 0);
+
+      var gauss = u * Math.sqrt(-2 * Math.log(r) / r);
+      return mean + gauss * stddev;
+    };
+    /**
+     * @returns Pseudorandom value [1,100] inclusive, uniformly distributed
+     */
+
+
+    _proto.getPercentage = function getPercentage() {
+      return 1 + Math.floor(this.getUniform() * 100);
+    };
+    /**
+     * @returns Randomly picked item, null when length=0
+     */
+
+
+    _proto.getItem = function getItem(array) {
+      if (!array.length) {
+        return null;
+      }
+
+      return array[Math.floor(this.getUniform() * array.length)];
+    };
+    /**
+     * @returns New array with randomized items
+     */
+
+
+    _proto.shuffle = function shuffle(array) {
+      var result = [];
+      var clone = array.slice();
+
+      while (clone.length) {
+        var _index = clone.indexOf(this.getItem(clone));
+
+        result.push(clone.splice(_index, 1)[0]);
+      }
+
+      return result;
+    };
+    /**
+     * @param data key=whatever, value=weight (relative probability)
+     * @returns whatever
+     */
+
+
+    _proto.getWeightedValue = function getWeightedValue(data) {
+      var total = 0;
+
+      for (var _id in data) {
+        total += data[_id];
+      }
+
+      var random = this.getUniform() * total;
+      var id,
+          part = 0;
+
+      for (id in data) {
+        part += data[id];
+
+        if (random < part) {
+          return id;
+        }
+      } // If by some floating-point annoyance we have
+      // random >= total, just return the last id.
+
+
+      return id;
+    };
+    /**
+     * Get RNG state. Useful for storing the state and re-setting it via setState.
+     * @returns Internal state
+     */
+
+
+    _proto.getState = function getState() {
+      return [this._s0, this._s1, this._s2, this._c];
+    };
+    /**
+     * Set a previously retrieved state.
+     */
+
+
+    _proto.setState = function setState(state) {
+      this._s0 = state[0];
+      this._s1 = state[1];
+      this._s2 = state[2];
+      this._c = state[3];
+      return this;
+    };
+    /**
+     * Returns a cloned RNG
+     */
+
+
+    _proto.clone = function clone() {
+      var clone = new RNG();
+      return clone.setState(this.getState());
+    };
+
+    return RNG;
+  }();
+
+  var RNG$1 = new RNG().setSeed(Date.now());
+  /**
+   * @class Abstract display backend module
+   * @private
+   */
+
+  var Backend =
+  /*#__PURE__*/
+  function () {
+    function Backend() {}
+
+    var _proto2 = Backend.prototype;
+
+    _proto2.getContainer = function getContainer() {
+      return null;
+    };
+
+    _proto2.setOptions = function setOptions(options) {
+      this._options = options;
+    };
+
+    return Backend;
+  }();
+
+  var Canvas =
+  /*#__PURE__*/
+  function (_Backend) {
+    _inheritsLoose(Canvas, _Backend);
+
+    function Canvas() {
+      var _this;
+
+      _this = _Backend.call(this) || this;
+      _this._ctx = document.createElement("canvas").getContext("2d");
+      return _this;
+    }
+
+    var _proto3 = Canvas.prototype;
+
+    _proto3.schedule = function schedule(cb) {
+      requestAnimationFrame(cb);
+    };
+
+    _proto3.getContainer = function getContainer() {
+      return this._ctx.canvas;
+    };
+
+    _proto3.setOptions = function setOptions(opts) {
+      _Backend.prototype.setOptions.call(this, opts);
+
+      var style = opts.fontStyle ? opts.fontStyle + " " : "";
+      var font = style + " " + opts.fontSize + "px " + opts.fontFamily;
+      this._ctx.font = font;
+
+      this._updateSize();
+
+      this._ctx.font = font;
+      this._ctx.textAlign = "center";
+      this._ctx.textBaseline = "middle";
+    };
+
+    _proto3.clear = function clear() {
+      this._ctx.fillStyle = this._options.bg;
+
+      this._ctx.fillRect(0, 0, this._ctx.canvas.width, this._ctx.canvas.height);
+    };
+
+    _proto3.eventToPosition = function eventToPosition(x, y) {
+      var canvas = this._ctx.canvas;
+      var rect = canvas.getBoundingClientRect();
+      x -= rect.left;
+      y -= rect.top;
+      x *= canvas.width / rect.width;
+      y *= canvas.height / rect.height;
+
+      if (x < 0 || y < 0 || x >= canvas.width || y >= canvas.height) {
+        return [-1, -1];
+      }
+
+      return this._normalizedEventToPosition(x, y);
+    };
+
+    return Canvas;
+  }(Backend);
+  /**
+   * Always positive modulus
+   * @param x Operand
+   * @param n Modulus
+   * @returns x modulo n
+   */
+
+
+  function mod(x, n) {
+    return (x % n + n) % n;
+  }
+
+  function clamp(val, min, max) {
+    if (min === void 0) {
+      min = 0;
+    }
+
+    if (max === void 0) {
+      max = 1;
+    }
+
+    if (val < min) return min;
+    if (val > max) return max;
+    return val;
+  }
+
+  function capitalize(string) {
+    return string.charAt(0).toUpperCase() + string.substring(1);
+  }
+  /**
+   * Format a string in a flexible way. Scans for %s strings and replaces them with arguments. List of patterns is modifiable via String.format.map.
+   * @param {string} template
+   * @param {any} [argv]
+   */
+
+
+  function format(template) {
+    for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+      args[_key - 1] = arguments[_key];
+    }
+
+    var map = format.map;
+
+    var replacer = function replacer(match, group1, group2, index) {
+      if (template.charAt(index - 1) == "%") {
+        return match.substring(1);
+      }
+
+      if (!args.length) {
+        return match;
+      }
+
+      var obj = args[0];
+      var group = group1 || group2;
+      var parts = group.split(",");
+      var name = parts.shift() || "";
+      var method = map[name.toLowerCase()];
+
+      if (!method) {
+        return match;
+      }
+
+      obj = args.shift();
+      var replaced = obj[method].apply(obj, parts);
+      var first = name.charAt(0);
+
+      if (first != first.toLowerCase()) {
+        replaced = capitalize(replaced);
+      }
+
+      return replaced;
+    };
+
+    return template.replace(/%(?:([a-z]+)|(?:{([^}]+)}))/gi, replacer);
+  }
+
+  format.map = {
+    "s": "toString"
+  };
+  var util =
+  /*#__PURE__*/
+  Object.freeze({
+    mod: mod,
+    clamp: clamp,
+    capitalize: capitalize,
+    format: format
+  });
+  /**
+   * @class Hexagonal backend
+   * @private
+   */
+
+  var Hex =
+  /*#__PURE__*/
+  function (_Canvas) {
+    _inheritsLoose(Hex, _Canvas);
+
+    function Hex() {
+      var _this2;
+
+      _this2 = _Canvas.call(this) || this;
+      _this2._spacingX = 0;
+      _this2._spacingY = 0;
+      _this2._hexSize = 0;
+      return _this2;
+    }
+
+    var _proto4 = Hex.prototype;
+
+    _proto4.draw = function draw(data, clearBefore) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var px = [(x + 1) * this._spacingX, y * this._spacingY + this._hexSize];
+
+      if (this._options.transpose) {
+        px.reverse();
+      }
+
+      if (clearBefore) {
+        this._ctx.fillStyle = bg;
+
+        this._fill(px[0], px[1]);
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      this._ctx.fillStyle = fg;
+      var chars = [].concat(ch);
+
+      for (var i = 0; i < chars.length; i++) {
+        this._ctx.fillText(chars[i], px[0], Math.ceil(px[1]));
+      }
+    };
+
+    _proto4.computeSize = function computeSize(availWidth, availHeight) {
+      if (this._options.transpose) {
+        availWidth += availHeight;
+        availHeight = availWidth - availHeight;
+        availWidth -= availHeight;
+      }
+
+      var width = Math.floor(availWidth / this._spacingX) - 1;
+      var height = Math.floor((availHeight - 2 * this._hexSize) / this._spacingY + 1);
+      return [width, height];
+    };
+
+    _proto4.computeFontSize = function computeFontSize(availWidth, availHeight) {
+      if (this._options.transpose) {
+        availWidth += availHeight;
+        availHeight = availWidth - availHeight;
+        availWidth -= availHeight;
+      }
+
+      var hexSizeWidth = 2 * availWidth / ((this._options.width + 1) * Math.sqrt(3)) - 1;
+      var hexSizeHeight = availHeight / (2 + 1.5 * (this._options.height - 1));
+      var hexSize = Math.min(hexSizeWidth, hexSizeHeight); // compute char ratio
+
+      var oldFont = this._ctx.font;
+      this._ctx.font = "100px " + this._options.fontFamily;
+      var width = Math.ceil(this._ctx.measureText("W").width);
+      this._ctx.font = oldFont;
+      var ratio = width / 100;
+      hexSize = Math.floor(hexSize) + 1; // closest larger hexSize
+      // FIXME char size computation does not respect transposed hexes
+
+      var fontSize = 2 * hexSize / (this._options.spacing * (1 + ratio / Math.sqrt(3))); // closest smaller fontSize
+
+      return Math.ceil(fontSize) - 1;
+    };
+
+    _proto4._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      var nodeSize;
+
+      if (this._options.transpose) {
+        x += y;
+        y = x - y;
+        x -= y;
+        nodeSize = this._ctx.canvas.width;
+      } else {
+        nodeSize = this._ctx.canvas.height;
+      }
+
+      var size = nodeSize / this._options.height;
+      y = Math.floor(y / size);
+
+      if (mod(y, 2)) {
+        /* odd row */
+        x -= this._spacingX;
+        x = 1 + 2 * Math.floor(x / (2 * this._spacingX));
+      } else {
+        x = 2 * Math.floor(x / (2 * this._spacingX));
+      }
+
+      return [x, y];
+    };
+    /**
+     * Arguments are pixel values. If "transposed" mode is enabled, then these two are already swapped.
+     */
+
+
+    _proto4._fill = function _fill(cx, cy) {
+      var a = this._hexSize;
+      var b = this._options.border;
+      var ctx = this._ctx;
+      ctx.beginPath();
+
+      if (this._options.transpose) {
+        ctx.moveTo(cx - a + b, cy);
+        ctx.lineTo(cx - a / 2 + b, cy + this._spacingX - b);
+        ctx.lineTo(cx + a / 2 - b, cy + this._spacingX - b);
+        ctx.lineTo(cx + a - b, cy);
+        ctx.lineTo(cx + a / 2 - b, cy - this._spacingX + b);
+        ctx.lineTo(cx - a / 2 + b, cy - this._spacingX + b);
+        ctx.lineTo(cx - a + b, cy);
+      } else {
+        ctx.moveTo(cx, cy - a + b);
+        ctx.lineTo(cx + this._spacingX - b, cy - a / 2 + b);
+        ctx.lineTo(cx + this._spacingX - b, cy + a / 2 - b);
+        ctx.lineTo(cx, cy + a - b);
+        ctx.lineTo(cx - this._spacingX + b, cy + a / 2 - b);
+        ctx.lineTo(cx - this._spacingX + b, cy - a / 2 + b);
+        ctx.lineTo(cx, cy - a + b);
+      }
+
+      ctx.fill();
+    };
+
+    _proto4._updateSize = function _updateSize() {
+      var opts = this._options;
+      var charWidth = Math.ceil(this._ctx.measureText("W").width);
+      this._hexSize = Math.floor(opts.spacing * (opts.fontSize + charWidth / Math.sqrt(3)) / 2);
+      this._spacingX = this._hexSize * Math.sqrt(3) / 2;
+      this._spacingY = this._hexSize * 1.5;
+      var xprop;
+      var yprop;
+
+      if (opts.transpose) {
+        xprop = "height";
+        yprop = "width";
+      } else {
+        xprop = "width";
+        yprop = "height";
+      }
+
+      this._ctx.canvas[xprop] = Math.ceil((opts.width + 1) * this._spacingX);
+      this._ctx.canvas[yprop] = Math.ceil((opts.height - 1) * this._spacingY + 2 * this._hexSize);
+    };
+
+    return Hex;
+  }(Canvas);
+  /**
+   * @class Rectangular backend
+   * @private
+   */
+
+
+  var Rect =
+  /*#__PURE__*/
+  function (_Canvas2) {
+    _inheritsLoose(Rect, _Canvas2);
+
+    function Rect() {
+      var _this3;
+
+      _this3 = _Canvas2.call(this) || this;
+      _this3._spacingX = 0;
+      _this3._spacingY = 0;
+      _this3._canvasCache = {};
+      return _this3;
+    }
+
+    var _proto5 = Rect.prototype;
+
+    _proto5.setOptions = function setOptions(options) {
+      _Canvas2.prototype.setOptions.call(this, options);
+
+      this._canvasCache = {};
+    };
+
+    _proto5.draw = function draw(data, clearBefore) {
+      if (Rect.cache) {
+        this._drawWithCache(data);
+      } else {
+        this._drawNoCache(data, clearBefore);
+      }
+    };
+
+    _proto5._drawWithCache = function _drawWithCache(data) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var hash = "" + ch + fg + bg;
+      var canvas;
+
+      if (hash in this._canvasCache) {
+        canvas = this._canvasCache[hash];
+      } else {
+        var b = this._options.border;
+        canvas = document.createElement("canvas");
+        var ctx = canvas.getContext("2d");
+        canvas.width = this._spacingX;
+        canvas.height = this._spacingY;
+        ctx.fillStyle = bg;
+        ctx.fillRect(b, b, canvas.width - b, canvas.height - b);
+
+        if (ch) {
+          ctx.fillStyle = fg;
+          ctx.font = this._ctx.font;
+          ctx.textAlign = "center";
+          ctx.textBaseline = "middle";
+          var chars = [].concat(ch);
+
+          for (var i = 0; i < chars.length; i++) {
+            ctx.fillText(chars[i], this._spacingX / 2, Math.ceil(this._spacingY / 2));
+          }
+        }
+
+        this._canvasCache[hash] = canvas;
+      }
+
+      this._ctx.drawImage(canvas, x * this._spacingX, y * this._spacingY);
+    };
+
+    _proto5._drawNoCache = function _drawNoCache(data, clearBefore) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+
+      if (clearBefore) {
+        var b = this._options.border;
+        this._ctx.fillStyle = bg;
+
+        this._ctx.fillRect(x * this._spacingX + b, y * this._spacingY + b, this._spacingX - b, this._spacingY - b);
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      this._ctx.fillStyle = fg;
+      var chars = [].concat(ch);
+
+      for (var i = 0; i < chars.length; i++) {
+        this._ctx.fillText(chars[i], (x + 0.5) * this._spacingX, Math.ceil((y + 0.5) * this._spacingY));
+      }
+    };
+
+    _proto5.computeSize = function computeSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._spacingX);
+      var height = Math.floor(availHeight / this._spacingY);
+      return [width, height];
+    };
+
+    _proto5.computeFontSize = function computeFontSize(availWidth, availHeight) {
+      var boxWidth = Math.floor(availWidth / this._options.width);
+      var boxHeight = Math.floor(availHeight / this._options.height);
+      /* compute char ratio */
+
+      var oldFont = this._ctx.font;
+      this._ctx.font = "100px " + this._options.fontFamily;
+      var width = Math.ceil(this._ctx.measureText("W").width);
+      this._ctx.font = oldFont;
+      var ratio = width / 100;
+      var widthFraction = ratio * boxHeight / boxWidth;
+
+      if (widthFraction > 1) {
+        /* too wide with current aspect ratio */
+        boxHeight = Math.floor(boxHeight / widthFraction);
+      }
+
+      return Math.floor(boxHeight / this._options.spacing);
+    };
+
+    _proto5._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      return [Math.floor(x / this._spacingX), Math.floor(y / this._spacingY)];
+    };
+
+    _proto5._updateSize = function _updateSize() {
+      var opts = this._options;
+      var charWidth = Math.ceil(this._ctx.measureText("W").width);
+      this._spacingX = Math.ceil(opts.spacing * charWidth);
+      this._spacingY = Math.ceil(opts.spacing * opts.fontSize);
+
+      if (opts.forceSquareRatio) {
+        this._spacingX = this._spacingY = Math.max(this._spacingX, this._spacingY);
+      }
+
+      this._ctx.canvas.width = opts.width * this._spacingX;
+      this._ctx.canvas.height = opts.height * this._spacingY;
+    };
+
+    return Rect;
+  }(Canvas);
+
+  Rect.cache = false;
+  /**
+   * @class Tile backend
+   * @private
+   */
+
+  var Tile =
+  /*#__PURE__*/
+  function (_Canvas3) {
+    _inheritsLoose(Tile, _Canvas3);
+
+    function Tile() {
+      var _this4;
+
+      _this4 = _Canvas3.call(this) || this;
+      _this4._colorCanvas = document.createElement("canvas");
+      return _this4;
+    }
+
+    var _proto6 = Tile.prototype;
+
+    _proto6.draw = function draw(data, clearBefore) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var tileWidth = this._options.tileWidth;
+      var tileHeight = this._options.tileHeight;
+
+      if (clearBefore) {
+        if (this._options.tileColorize) {
+          this._ctx.clearRect(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        } else {
+          this._ctx.fillStyle = bg;
+
+          this._ctx.fillRect(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        }
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      var chars = [].concat(ch);
+      var fgs = [].concat(fg);
+      var bgs = [].concat(bg);
+
+      for (var i = 0; i < chars.length; i++) {
+        var tile = this._options.tileMap[chars[i]];
+
+        if (!tile) {
+          throw new Error("Char \"" + chars[i] + "\" not found in tileMap");
+        }
+
+        if (this._options.tileColorize) {
+          // apply colorization
+          var canvas = this._colorCanvas;
+          var context = canvas.getContext("2d");
+          context.globalCompositeOperation = "source-over";
+          context.clearRect(0, 0, tileWidth, tileHeight);
+          var _fg = fgs[i];
+          var _bg = bgs[i];
+          context.drawImage(this._options.tileSet, tile[0], tile[1], tileWidth, tileHeight, 0, 0, tileWidth, tileHeight);
+
+          if (_fg != "transparent") {
+            context.fillStyle = _fg;
+            context.globalCompositeOperation = "source-atop";
+            context.fillRect(0, 0, tileWidth, tileHeight);
+          }
+
+          if (_bg != "transparent") {
+            context.fillStyle = _bg;
+            context.globalCompositeOperation = "destination-over";
+            context.fillRect(0, 0, tileWidth, tileHeight);
+          }
+
+          this._ctx.drawImage(canvas, x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        } else {
+          // no colorizing, easy
+          this._ctx.drawImage(this._options.tileSet, tile[0], tile[1], tileWidth, tileHeight, x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        }
+      }
+    };
+
+    _proto6.computeSize = function computeSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._options.tileWidth);
+      var height = Math.floor(availHeight / this._options.tileHeight);
+      return [width, height];
+    };
+
+    _proto6.computeFontSize = function computeFontSize() {
+      throw new Error("Tile backend does not understand font size");
+    };
+
+    _proto6._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      return [Math.floor(x / this._options.tileWidth), Math.floor(y / this._options.tileHeight)];
+    };
+
+    _proto6._updateSize = function _updateSize() {
+      var opts = this._options;
+      this._ctx.canvas.width = opts.width * opts.tileWidth;
+      this._ctx.canvas.height = opts.height * opts.tileHeight;
+      this._colorCanvas.width = opts.tileWidth;
+      this._colorCanvas.height = opts.tileHeight;
+    };
+
+    return Tile;
+  }(Canvas);
+
+  function fromString(str) {
+    var cached, r;
+
+    if (str in CACHE) {
+      cached = CACHE[str];
+    } else {
+      if (str.charAt(0) == "#") {
+        // hex rgb
+        var matched = str.match(/[0-9a-f]/gi) || [];
+        var values = matched.map(function (x) {
+          return parseInt(x, 16);
+        });
+
+        if (values.length == 3) {
+          cached = values.map(function (x) {
+            return x * 17;
+          });
+        } else {
+          for (var i = 0; i < 3; i++) {
+            values[i + 1] += 16 * values[i];
+            values.splice(i, 1);
+          }
+
+          cached = values;
+        }
+      } else if (r = str.match(/rgb\(([0-9, ]+)\)/i)) {
+        // decimal rgb
+        cached = r[1].split(/\s*,\s*/).map(function (x) {
+          return parseInt(x);
+        });
+      } else {
+        // html name
+        cached = [0, 0, 0];
+      }
+
+      CACHE[str] = cached;
+    }
+
+    return cached.slice();
+  }
+  /**
+   * Add two or more colors
+   */
+
+
+  function add(color1) {
+    var result = color1.slice();
+
+    for (var _len2 = arguments.length, colors = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+      colors[_key2 - 1] = arguments[_key2];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        result[i] += colors[j][i];
+      }
+    }
+
+    return result;
+  }
+  /**
+   * Add two or more colors, MODIFIES FIRST ARGUMENT
+   */
+
+
+  function add_(color1) {
+    for (var _len3 = arguments.length, colors = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
+      colors[_key3 - 1] = arguments[_key3];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        color1[i] += colors[j][i];
+      }
+    }
+
+    return color1;
+  }
+  /**
+   * Multiply (mix) two or more colors
+   */
+
+
+  function multiply(color1) {
+    var result = color1.slice();
+
+    for (var _len4 = arguments.length, colors = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
+      colors[_key4 - 1] = arguments[_key4];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        result[i] *= colors[j][i] / 255;
+      }
+
+      result[i] = Math.round(result[i]);
+    }
+
+    return result;
+  }
+  /**
+   * Multiply (mix) two or more colors, MODIFIES FIRST ARGUMENT
+   */
+
+
+  function multiply_(color1) {
+    for (var _len5 = arguments.length, colors = new Array(_len5 > 1 ? _len5 - 1 : 0), _key5 = 1; _key5 < _len5; _key5++) {
+      colors[_key5 - 1] = arguments[_key5];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        color1[i] *= colors[j][i] / 255;
+      }
+
+      color1[i] = Math.round(color1[i]);
+    }
+
+    return color1;
+  }
+  /**
+   * Interpolate (blend) two colors with a given factor
+   */
+
+
+  function interpolate(color1, color2, factor) {
+    if (factor === void 0) {
+      factor = 0.5;
+    }
+
+    var result = color1.slice();
+
+    for (var i = 0; i < 3; i++) {
+      result[i] = Math.round(result[i] + factor * (color2[i] - color1[i]));
+    }
+
+    return result;
+  }
+
+  var lerp = interpolate;
+  /**
+   * Interpolate (blend) two colors with a given factor in HSL mode
+   */
+
+  function interpolateHSL(color1, color2, factor) {
+    if (factor === void 0) {
+      factor = 0.5;
+    }
+
+    var hsl1 = rgb2hsl(color1);
+    var hsl2 = rgb2hsl(color2);
+
+    for (var i = 0; i < 3; i++) {
+      hsl1[i] += factor * (hsl2[i] - hsl1[i]);
+    }
+
+    return hsl2rgb(hsl1);
+  }
+
+  var lerpHSL = interpolateHSL;
+  /**
+   * Create a new random color based on this one
+   * @param color
+   * @param diff Set of standard deviations
+   */
+
+  function randomize(color, diff) {
+    if (!(diff instanceof Array)) {
+      diff = Math.round(RNG$1.getNormal(0, diff));
+    }
+
+    var result = color.slice();
+
+    for (var i = 0; i < 3; i++) {
+      result[i] += diff instanceof Array ? Math.round(RNG$1.getNormal(0, diff[i])) : diff;
+    }
+
+    return result;
+  }
+  /**
+   * Converts an RGB color value to HSL. Expects 0..255 inputs, produces 0..1 outputs.
+   */
+
+
+  function rgb2hsl(color) {
+    var r = color[0] / 255;
+    var g = color[1] / 255;
+    var b = color[2] / 255;
+    var max = Math.max(r, g, b),
+        min = Math.min(r, g, b);
+    var h = 0,
+        s,
+        l = (max + min) / 2;
+
+    if (max == min) {
+      s = 0; // achromatic
+    } else {
+      var d = max - min;
+      s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
+
+      switch (max) {
+        case r:
+          h = (g - b) / d + (g < b ? 6 : 0);
+          break;
+
+        case g:
+          h = (b - r) / d + 2;
+          break;
+
+        case b:
+          h = (r - g) / d + 4;
+          break;
+      }
+
+      h /= 6;
+    }
+
+    return [h, s, l];
+  }
+
+  function hue2rgb(p, q, t) {
+    if (t < 0) t += 1;
+    if (t > 1) t -= 1;
+    if (t < 1 / 6) return p + (q - p) * 6 * t;
+    if (t < 1 / 2) return q;
+    if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
+    return p;
+  }
+  /**
+   * Converts an HSL color value to RGB. Expects 0..1 inputs, produces 0..255 outputs.
+   */
+
+
+  function hsl2rgb(color) {
+    var l = color[2];
+
+    if (color[1] == 0) {
+      l = Math.round(l * 255);
+      return [l, l, l];
+    } else {
+      var s = color[1];
+      var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+      var p = 2 * l - q;
+      var r = hue2rgb(p, q, color[0] + 1 / 3);
+      var g = hue2rgb(p, q, color[0]);
+      var b = hue2rgb(p, q, color[0] - 1 / 3);
+      return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
+    }
+  }
+
+  function toRGB(color) {
+    var clamped = color.map(function (x) {
+      return clamp(x, 0, 255);
+    });
+    return "rgb(" + clamped.join(",") + ")";
+  }
+
+  function toHex(color) {
+    var clamped = color.map(function (x) {
+      return clamp(x, 0, 255).toString(16).padStart(2, "0");
+    });
+    return "#" + clamped.join("");
+  }
+
+  var CACHE = {
+    "black": [0, 0, 0],
+    "navy": [0, 0, 128],
+    "darkblue": [0, 0, 139],
+    "mediumblue": [0, 0, 205],
+    "blue": [0, 0, 255],
+    "darkgreen": [0, 100, 0],
+    "green": [0, 128, 0],
+    "teal": [0, 128, 128],
+    "darkcyan": [0, 139, 139],
+    "deepskyblue": [0, 191, 255],
+    "darkturquoise": [0, 206, 209],
+    "mediumspringgreen": [0, 250, 154],
+    "lime": [0, 255, 0],
+    "springgreen": [0, 255, 127],
+    "aqua": [0, 255, 255],
+    "cyan": [0, 255, 255],
+    "midnightblue": [25, 25, 112],
+    "dodgerblue": [30, 144, 255],
+    "forestgreen": [34, 139, 34],
+    "seagreen": [46, 139, 87],
+    "darkslategray": [47, 79, 79],
+    "darkslategrey": [47, 79, 79],
+    "limegreen": [50, 205, 50],
+    "mediumseagreen": [60, 179, 113],
+    "turquoise": [64, 224, 208],
+    "royalblue": [65, 105, 225],
+    "steelblue": [70, 130, 180],
+    "darkslateblue": [72, 61, 139],
+    "mediumturquoise": [72, 209, 204],
+    "indigo": [75, 0, 130],
+    "darkolivegreen": [85, 107, 47],
+    "cadetblue": [95, 158, 160],
+    "cornflowerblue": [100, 149, 237],
+    "mediumaquamarine": [102, 205, 170],
+    "dimgray": [105, 105, 105],
+    "dimgrey": [105, 105, 105],
+    "slateblue": [106, 90, 205],
+    "olivedrab": [107, 142, 35],
+    "slategray": [112, 128, 144],
+    "slategrey": [112, 128, 144],
+    "lightslategray": [119, 136, 153],
+    "lightslategrey": [119, 136, 153],
+    "mediumslateblue": [123, 104, 238],
+    "lawngreen": [124, 252, 0],
+    "chartreuse": [127, 255, 0],
+    "aquamarine": [127, 255, 212],
+    "maroon": [128, 0, 0],
+    "purple": [128, 0, 128],
+    "olive": [128, 128, 0],
+    "gray": [128, 128, 128],
+    "grey": [128, 128, 128],
+    "skyblue": [135, 206, 235],
+    "lightskyblue": [135, 206, 250],
+    "blueviolet": [138, 43, 226],
+    "darkred": [139, 0, 0],
+    "darkmagenta": [139, 0, 139],
+    "saddlebrown": [139, 69, 19],
+    "darkseagreen": [143, 188, 143],
+    "lightgreen": [144, 238, 144],
+    "mediumpurple": [147, 112, 216],
+    "darkviolet": [148, 0, 211],
+    "palegreen": [152, 251, 152],
+    "darkorchid": [153, 50, 204],
+    "yellowgreen": [154, 205, 50],
+    "sienna": [160, 82, 45],
+    "brown": [165, 42, 42],
+    "darkgray": [169, 169, 169],
+    "darkgrey": [169, 169, 169],
+    "lightblue": [173, 216, 230],
+    "greenyellow": [173, 255, 47],
+    "paleturquoise": [175, 238, 238],
+    "lightsteelblue": [176, 196, 222],
+    "powderblue": [176, 224, 230],
+    "firebrick": [178, 34, 34],
+    "darkgoldenrod": [184, 134, 11],
+    "mediumorchid": [186, 85, 211],
+    "rosybrown": [188, 143, 143],
+    "darkkhaki": [189, 183, 107],
+    "silver": [192, 192, 192],
+    "mediumvioletred": [199, 21, 133],
+    "indianred": [205, 92, 92],
+    "peru": [205, 133, 63],
+    "chocolate": [210, 105, 30],
+    "tan": [210, 180, 140],
+    "lightgray": [211, 211, 211],
+    "lightgrey": [211, 211, 211],
+    "palevioletred": [216, 112, 147],
+    "thistle": [216, 191, 216],
+    "orchid": [218, 112, 214],
+    "goldenrod": [218, 165, 32],
+    "crimson": [220, 20, 60],
+    "gainsboro": [220, 220, 220],
+    "plum": [221, 160, 221],
+    "burlywood": [222, 184, 135],
+    "lightcyan": [224, 255, 255],
+    "lavender": [230, 230, 250],
+    "darksalmon": [233, 150, 122],
+    "violet": [238, 130, 238],
+    "palegoldenrod": [238, 232, 170],
+    "lightcoral": [240, 128, 128],
+    "khaki": [240, 230, 140],
+    "aliceblue": [240, 248, 255],
+    "honeydew": [240, 255, 240],
+    "azure": [240, 255, 255],
+    "sandybrown": [244, 164, 96],
+    "wheat": [245, 222, 179],
+    "beige": [245, 245, 220],
+    "whitesmoke": [245, 245, 245],
+    "mintcream": [245, 255, 250],
+    "ghostwhite": [248, 248, 255],
+    "salmon": [250, 128, 114],
+    "antiquewhite": [250, 235, 215],
+    "linen": [250, 240, 230],
+    "lightgoldenrodyellow": [250, 250, 210],
+    "oldlace": [253, 245, 230],
+    "red": [255, 0, 0],
+    "fuchsia": [255, 0, 255],
+    "magenta": [255, 0, 255],
+    "deeppink": [255, 20, 147],
+    "orangered": [255, 69, 0],
+    "tomato": [255, 99, 71],
+    "hotpink": [255, 105, 180],
+    "coral": [255, 127, 80],
+    "darkorange": [255, 140, 0],
+    "lightsalmon": [255, 160, 122],
+    "orange": [255, 165, 0],
+    "lightpink": [255, 182, 193],
+    "pink": [255, 192, 203],
+    "gold": [255, 215, 0],
+    "peachpuff": [255, 218, 185],
+    "navajowhite": [255, 222, 173],
+    "moccasin": [255, 228, 181],
+    "bisque": [255, 228, 196],
+    "mistyrose": [255, 228, 225],
+    "blanchedalmond": [255, 235, 205],
+    "papayawhip": [255, 239, 213],
+    "lavenderblush": [255, 240, 245],
+    "seashell": [255, 245, 238],
+    "cornsilk": [255, 248, 220],
+    "lemonchiffon": [255, 250, 205],
+    "floralwhite": [255, 250, 240],
+    "snow": [255, 250, 250],
+    "yellow": [255, 255, 0],
+    "lightyellow": [255, 255, 224],
+    "ivory": [255, 255, 240],
+    "white": [255, 255, 255]
+  };
+  var color =
+  /*#__PURE__*/
+  Object.freeze({
+    fromString: fromString,
+    add: add,
+    add_: add_,
+    multiply: multiply,
+    multiply_: multiply_,
+    interpolate: interpolate,
+    lerp: lerp,
+    interpolateHSL: interpolateHSL,
+    lerpHSL: lerpHSL,
+    randomize: randomize,
+    rgb2hsl: rgb2hsl,
+    hsl2rgb: hsl2rgb,
+    toRGB: toRGB,
+    toHex: toHex
+  });
+  /**
+   * @class Tile backend
+   * @private
+   */
+
+  var TileGL =
+  /*#__PURE__*/
+  function (_Backend2) {
+    _inheritsLoose(TileGL, _Backend2);
+
+    TileGL.isSupported = function isSupported() {
+      return !!document.createElement("canvas").getContext("webgl2", {
+        preserveDrawingBuffer: true
+      });
+    };
+
+    function TileGL() {
+      var _this5;
+
+      _this5 = _Backend2.call(this) || this;
+      _this5._uniforms = {};
+
+      try {
+        _this5._gl = _this5._initWebGL();
+      } catch (e) {
+        alert(e.message);
+      }
+
+      return _this5;
+    }
+
+    var _proto7 = TileGL.prototype;
+
+    _proto7.schedule = function schedule(cb) {
+      requestAnimationFrame(cb);
+    };
+
+    _proto7.getContainer = function getContainer() {
+      return this._gl.canvas;
+    };
+
+    _proto7.setOptions = function setOptions(opts) {
+      var _this6 = this;
+
+      _Backend2.prototype.setOptions.call(this, opts);
+
+      this._updateSize();
+
+      var tileSet = this._options.tileSet;
+
+      if (tileSet && "complete" in tileSet && !tileSet.complete) {
+        tileSet.addEventListener("load", function () {
+          return _this6._updateTexture(tileSet);
+        });
+      } else {
+        this._updateTexture(tileSet);
+      }
+    };
+
+    _proto7.draw = function draw(data, clearBefore) {
+      var gl = this._gl;
+      var opts = this._options;
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var scissorY = gl.canvas.height - (y + 1) * opts.tileHeight;
+      gl.scissor(x * opts.tileWidth, scissorY, opts.tileWidth, opts.tileHeight);
+
+      if (clearBefore) {
+        if (opts.tileColorize) {
+          gl.clearColor(0, 0, 0, 0);
+        } else {
+          gl.clearColor.apply(gl, parseColor(bg));
+        }
+
+        gl.clear(gl.COLOR_BUFFER_BIT);
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      var chars = [].concat(ch);
+      var bgs = [].concat(bg);
+      var fgs = [].concat(fg);
+      gl.uniform2fv(this._uniforms["targetPosRel"], [x, y]);
+
+      for (var i = 0; i < chars.length; i++) {
+        var tile = this._options.tileMap[chars[i]];
+
+        if (!tile) {
+          throw new Error("Char \"" + chars[i] + "\" not found in tileMap");
+        }
+
+        gl.uniform1f(this._uniforms["colorize"], opts.tileColorize ? 1 : 0);
+        gl.uniform2fv(this._uniforms["tilesetPosAbs"], tile);
+
+        if (opts.tileColorize) {
+          gl.uniform4fv(this._uniforms["tint"], parseColor(fgs[i]));
+          gl.uniform4fv(this._uniforms["bg"], parseColor(bgs[i]));
+        }
+
+        gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
+      }
+      /*
+      
+      
+              for (let i=0;i<chars.length;i++) {
+                  
+                  if (this._options.tileColorize) { // apply colorization
+                      let canvas = this._colorCanvas;
+                      let context = canvas.getContext("2d") as CanvasRenderingContext2D;
+                      context.globalCompositeOperation = "source-over";
+                      context.clearRect(0, 0, tileWidth, tileHeight);
+      
+                      let fg = fgs[i];
+                      let bg = bgs[i];
+      
+                      context.drawImage(
+                          this._options.tileSet!,
+                          tile[0], tile[1], tileWidth, tileHeight,
+                          0, 0, tileWidth, tileHeight
+                      );
+      
+                      if (fg != "transparent") {
+                          context.fillStyle = fg;
+                          context.globalCompositeOperation = "source-atop";
+                          context.fillRect(0, 0, tileWidth, tileHeight);
+                      }
+      
+                      if (bg != "transparent") {
+                          context.fillStyle = bg;
+                          context.globalCompositeOperation = "destination-over";
+                          context.fillRect(0, 0, tileWidth, tileHeight);
+                      }
+      
+                      this._ctx.drawImage(canvas, x*tileWidth, y*tileHeight, tileWidth, tileHeight);
+                  } else { // no colorizing, easy
+                      this._ctx.drawImage(
+                          this._options.tileSet!,
+                          tile[0], tile[1], tileWidth, tileHeight,
+                          x*tileWidth, y*tileHeight, tileWidth, tileHeight
+                      );
+                  }
+              }
+      
+      */
+
+    };
+
+    _proto7.clear = function clear() {
+      var gl = this._gl;
+      gl.clearColor.apply(gl, parseColor(this._options.bg));
+      gl.scissor(0, 0, gl.canvas.width, gl.canvas.height);
+      gl.clear(gl.COLOR_BUFFER_BIT);
+    };
+
+    _proto7.computeSize = function computeSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._options.tileWidth);
+      var height = Math.floor(availHeight / this._options.tileHeight);
+      return [width, height];
+    };
+
+    _proto7.computeFontSize = function computeFontSize() {
+      throw new Error("Tile backend does not understand font size");
+    };
+
+    _proto7.eventToPosition = function eventToPosition(x, y) {
+      var canvas = this._gl.canvas;
+      var rect = canvas.getBoundingClientRect();
+      x -= rect.left;
+      y -= rect.top;
+      x *= canvas.width / rect.width;
+      y *= canvas.height / rect.height;
+
+      if (x < 0 || y < 0 || x >= canvas.width || y >= canvas.height) {
+        return [-1, -1];
+      }
+
+      return this._normalizedEventToPosition(x, y);
+    };
+
+    _proto7._initWebGL = function _initWebGL() {
+      var _this7 = this;
+
+      var gl = document.createElement("canvas").getContext("webgl2", {
+        preserveDrawingBuffer: true
+      });
+      window.gl = gl;
+      var program = createProgram(gl, VS, FS);
+      gl.useProgram(program);
+      createQuad(gl);
+      UNIFORMS.forEach(function (name) {
+        return _this7._uniforms[name] = gl.getUniformLocation(program, name);
+      });
+      this._program = program;
+      gl.enable(gl.BLEND);
+      gl.blendFuncSeparate(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
+      gl.enable(gl.SCISSOR_TEST);
+      return gl;
+    };
+
+    _proto7._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      return [Math.floor(x / this._options.tileWidth), Math.floor(y / this._options.tileHeight)];
+    };
+
+    _proto7._updateSize = function _updateSize() {
+      var gl = this._gl;
+      var opts = this._options;
+      var canvasSize = [opts.width * opts.tileWidth, opts.height * opts.tileHeight];
+      gl.canvas.width = canvasSize[0];
+      gl.canvas.height = canvasSize[1];
+      gl.viewport(0, 0, canvasSize[0], canvasSize[1]);
+      gl.uniform2fv(this._uniforms["tileSize"], [opts.tileWidth, opts.tileHeight]);
+      gl.uniform2fv(this._uniforms["targetSize"], canvasSize);
+    };
+
+    _proto7._updateTexture = function _updateTexture(tileSet) {
+      createTexture(this._gl, tileSet);
+    };
+
+    return TileGL;
+  }(Backend);
+
+  var UNIFORMS = ["targetPosRel", "tilesetPosAbs", "tileSize", "targetSize", "colorize", "bg", "tint"];
+  var VS = "\n#version 300 es\n\nin vec2 tilePosRel;\nout vec2 tilesetPosPx;\n\nuniform vec2 tilesetPosAbs;\nuniform vec2 tileSize;\nuniform vec2 targetSize;\nuniform vec2 targetPosRel;\n\nvoid main() {\n\tvec2 targetPosPx = (targetPosRel + tilePosRel) * tileSize;\n\tvec2 targetPosNdc = ((targetPosPx / targetSize)-0.5)*2.0;\n\ttargetPosNdc.y *= -1.0;\n\n\tgl_Position = vec4(targetPosNdc, 0.0, 1.0);\n\ttilesetPosPx = tilesetPosAbs + tilePosRel * tileSize;\n}".trim();
+  var FS = "\n#version 300 es\nprecision highp float;\n\nin vec2 tilesetPosPx;\nout vec4 fragColor;\nuniform sampler2D image;\nuniform bool colorize;\nuniform vec4 bg;\nuniform vec4 tint;\n\nvoid main() {\n\tfragColor = vec4(0, 0, 0, 1);\n\n\tvec4 texel = texelFetch(image, ivec2(tilesetPosPx), 0);\n\n\tif (colorize) {\n\t\ttexel.rgb = tint.a * tint.rgb + (1.0-tint.a) * texel.rgb;\n\t\tfragColor.rgb = texel.a*texel.rgb + (1.0-texel.a)*bg.rgb;\n\t\tfragColor.a = texel.a + (1.0-texel.a)*bg.a;\n\t} else {\n\t\tfragColor = texel;\n\t}\n}".trim();
+
+  function createProgram(gl, vss, fss) {
+    var vs = gl.createShader(gl.VERTEX_SHADER);
+    gl.shaderSource(vs, vss);
+    gl.compileShader(vs);
+
+    if (!gl.getShaderParameter(vs, gl.COMPILE_STATUS)) {
+      throw new Error(gl.getShaderInfoLog(vs) || "");
+    }
+
+    var fs = gl.createShader(gl.FRAGMENT_SHADER);
+    gl.shaderSource(fs, fss);
+    gl.compileShader(fs);
+
+    if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS)) {
+      throw new Error(gl.getShaderInfoLog(fs) || "");
+    }
+
+    var p = gl.createProgram();
+    gl.attachShader(p, vs);
+    gl.attachShader(p, fs);
+    gl.linkProgram(p);
+
+    if (!gl.getProgramParameter(p, gl.LINK_STATUS)) {
+      throw new Error(gl.getProgramInfoLog(p) || "");
+    }
+
+    return p;
+  }
+
+  function createQuad(gl) {
+    var pos = new Float32Array([0, 0, 1, 0, 0, 1, 1, 1]);
+    var buf = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, buf);
+    gl.bufferData(gl.ARRAY_BUFFER, pos, gl.STATIC_DRAW);
+    gl.enableVertexAttribArray(0);
+    gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
+  }
+
+  function createTexture(gl, data) {
+    var t = gl.createTexture();
+    gl.bindTexture(gl.TEXTURE_2D, t);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
+    gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, 0);
+    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, data);
+    return t;
+  }
+
+  var colorCache = {};
+
+  function parseColor(color) {
+    if (!(color in colorCache)) {
+      var parsed;
+
+      if (color == "transparent") {
+        parsed = [0, 0, 0, 0];
+      } else if (color.indexOf("rgba") > -1) {
+        parsed = (color.match(/[\d.]+/g) || []).map(Number);
+
+        for (var i = 0; i < 3; i++) {
+          parsed[i] = parsed[i] / 255;
+        }
+      } else {
+        parsed = fromString(color).map(function ($) {
+          return $ / 255;
+        });
+        parsed.push(1);
+      }
+
+      colorCache[color] = parsed;
+    }
+
+    return colorCache[color];
+  }
+
+  function clearToAnsi(bg) {
+    return "\x1B[0;48;5;" + termcolor(bg) + "m\x1B[2J";
+  }
+
+  function colorToAnsi(fg, bg) {
+    return "\x1B[0;38;5;" + termcolor(fg) + ";48;5;" + termcolor(bg) + "m";
+  }
+
+  function positionToAnsi(x, y) {
+    return "\x1B[" + (y + 1) + ";" + (x + 1) + "H";
+  }
+
+  function termcolor(color) {
+    var SRC_COLORS = 256.0;
+    var DST_COLORS = 6.0;
+    var COLOR_RATIO = DST_COLORS / SRC_COLORS;
+    var rgb = fromString(color);
+    var r = Math.floor(rgb[0] * COLOR_RATIO);
+    var g = Math.floor(rgb[1] * COLOR_RATIO);
+    var b = Math.floor(rgb[2] * COLOR_RATIO);
+    return r * 36 + g * 6 + b * 1 + 16;
+  }
+
+  var Term =
+  /*#__PURE__*/
+  function (_Backend3) {
+    _inheritsLoose(Term, _Backend3);
+
+    function Term() {
+      var _this8;
+
+      _this8 = _Backend3.call(this) || this;
+      _this8._offset = [0, 0];
+      _this8._cursor = [-1, -1];
+      _this8._lastColor = "";
+      return _this8;
+    }
+
+    var _proto8 = Term.prototype;
+
+    _proto8.schedule = function schedule(cb) {
+      setTimeout(cb, 1000 / 60);
+    };
+
+    _proto8.setOptions = function setOptions(options) {
+      _Backend3.prototype.setOptions.call(this, options);
+
+      var size = [options.width, options.height];
+      var avail = this.computeSize();
+      this._offset = avail.map(function (val, index) {
+        return Math.floor((val - size[index]) / 2);
+      });
+    };
+
+    _proto8.clear = function clear() {
+      process.stdout.write(clearToAnsi(this._options.bg));
+    };
+
+    _proto8.draw = function draw(data, clearBefore) {
+      // determine where to draw what with what colors
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4]; // determine if we need to move the terminal cursor
+
+      var dx = this._offset[0] + x;
+      var dy = this._offset[1] + y;
+      var size = this.computeSize();
+
+      if (dx < 0 || dx >= size[0]) {
+        return;
+      }
+
+      if (dy < 0 || dy >= size[1]) {
+        return;
+      }
+
+      if (dx !== this._cursor[0] || dy !== this._cursor[1]) {
+        process.stdout.write(positionToAnsi(dx, dy));
+        this._cursor[0] = dx;
+        this._cursor[1] = dy;
+      } // terminals automatically clear, but if we're clearing when we're
+      // not otherwise provided with a character, just use a space instead
+
+
+      if (clearBefore) {
+        if (!ch) {
+          ch = " ";
+        }
+      } // if we're not clearing and not provided with a character, do nothing
+
+
+      if (!ch) {
+        return;
+      } // determine if we need to change colors
+
+
+      var newColor = colorToAnsi(fg, bg);
+
+      if (newColor !== this._lastColor) {
+        process.stdout.write(newColor);
+        this._lastColor = newColor;
+      } // write the provided symbol to the display
+
+
+      var chars = [].concat(ch);
+      process.stdout.write(chars[0]); // update our position, given that we wrote a character
+
+      this._cursor[0]++;
+
+      if (this._cursor[0] >= size[0]) {
+        this._cursor[0] = 0;
+        this._cursor[1]++;
+      }
+    };
+
+    _proto8.computeFontSize = function computeFontSize() {
+      throw new Error("Terminal backend has no notion of font size");
+    };
+
+    _proto8.eventToPosition = function eventToPosition(x, y) {
+      return [x, y];
+    };
+
+    _proto8.computeSize = function computeSize() {
+      return [process.stdout.columns, process.stdout.rows];
+    };
+
+    return Term;
+  }(Backend);
+  /**
+   * @namespace
+   * Contains text tokenization and breaking routines
+   */
+
+
+  var RE_COLORS = /%([bc]){([^}]*)}/g; // token types
+
+  var TYPE_TEXT = 0;
+  var TYPE_NEWLINE = 1;
+  var TYPE_FG = 2;
+  var TYPE_BG = 3;
+  /**
+   * Measure size of a resulting text block
+   */
+
+  function measure(str, maxWidth) {
+    var result = {
+      width: 0,
+      height: 1
+    };
+    var tokens = tokenize(str, maxWidth);
+    var lineWidth = 0;
+
+    for (var i = 0; i < tokens.length; i++) {
+      var token = tokens[i];
+
+      switch (token.type) {
+        case TYPE_TEXT:
+          lineWidth += token.value.length;
+          break;
+
+        case TYPE_NEWLINE:
+          result.height++;
+          result.width = Math.max(result.width, lineWidth);
+          lineWidth = 0;
+          break;
+      }
+    }
+
+    result.width = Math.max(result.width, lineWidth);
+    return result;
+  }
+  /**
+   * Convert string to a series of a formatting commands
+   */
+
+
+  function tokenize(str, maxWidth) {
+    var result = [];
+    /* first tokenization pass - split texts and color formatting commands */
+
+    var offset = 0;
+    str.replace(RE_COLORS, function (match, type, name, index) {
+      /* string before */
+      var part = str.substring(offset, index);
+
+      if (part.length) {
+        result.push({
+          type: TYPE_TEXT,
+          value: part
+        });
+      }
+      /* color command */
+
+
+      result.push({
+        type: type == "c" ? TYPE_FG : TYPE_BG,
+        value: name.trim()
+      });
+      offset = index + match.length;
+      return "";
+    });
+    /* last remaining part */
+
+    var part = str.substring(offset);
+
+    if (part.length) {
+      result.push({
+        type: TYPE_TEXT,
+        value: part
+      });
+    }
+
+    return breakLines(result, maxWidth);
+  }
+  /* insert line breaks into first-pass tokenized data */
+
+
+  function breakLines(tokens, maxWidth) {
+    if (!maxWidth) {
+      maxWidth = Infinity;
+    }
+
+    var i = 0;
+    var lineLength = 0;
+    var lastTokenWithSpace = -1;
+
+    while (i < tokens.length) {
+      /* take all text tokens, remove space, apply linebreaks */
+      var token = tokens[i];
+
+      if (token.type == TYPE_NEWLINE) {
+        /* reset */
+        lineLength = 0;
+        lastTokenWithSpace = -1;
+      }
+
+      if (token.type != TYPE_TEXT) {
+        /* skip non-text tokens */
+        i++;
+        continue;
+      }
+      /* remove spaces at the beginning of line */
+
+
+      while (lineLength == 0 && token.value.charAt(0) == " ") {
+        token.value = token.value.substring(1);
+      }
+      /* forced newline? insert two new tokens after this one */
+
+
+      var _index2 = token.value.indexOf("\n");
+
+      if (_index2 != -1) {
+        token.value = breakInsideToken(tokens, i, _index2, true);
+        /* if there are spaces at the end, we must remove them (we do not want the line too long) */
+
+        var arr = token.value.split("");
+
+        while (arr.length && arr[arr.length - 1] == " ") {
+          arr.pop();
+        }
+
+        token.value = arr.join("");
+      }
+      /* token degenerated? */
+
+
+      if (!token.value.length) {
+        tokens.splice(i, 1);
+        continue;
+      }
+
+      if (lineLength + token.value.length > maxWidth) {
+        /* line too long, find a suitable breaking spot */
+
+        /* is it possible to break within this token? */
+        var _index3 = -1;
+
+        while (1) {
+          var nextIndex = token.value.indexOf(" ", _index3 + 1);
+
+          if (nextIndex == -1) {
+            break;
+          }
+
+          if (lineLength + nextIndex > maxWidth) {
+            break;
+          }
+
+          _index3 = nextIndex;
+        }
+
+        if (_index3 != -1) {
+          /* break at space within this one */
+          token.value = breakInsideToken(tokens, i, _index3, true);
+        } else if (lastTokenWithSpace != -1) {
+          /* is there a previous token where a break can occur? */
+          var _token = tokens[lastTokenWithSpace];
+
+          var breakIndex = _token.value.lastIndexOf(" ");
+
+          _token.value = breakInsideToken(tokens, lastTokenWithSpace, breakIndex, true);
+          i = lastTokenWithSpace;
+        } else {
+          /* force break in this token */
+          token.value = breakInsideToken(tokens, i, maxWidth - lineLength, false);
+        }
+      } else {
+        /* line not long, continue */
+        lineLength += token.value.length;
+
+        if (token.value.indexOf(" ") != -1) {
+          lastTokenWithSpace = i;
+        }
+      }
+
+      i++;
+      /* advance to next token */
+    }
+
+    tokens.push({
+      type: TYPE_NEWLINE
+    });
+    /* insert fake newline to fix the last text line */
+
+    /* remove trailing space from text tokens before newlines */
+
+    var lastTextToken = null;
+
+    for (var _i = 0; _i < tokens.length; _i++) {
+      var _token2 = tokens[_i];
+
+      switch (_token2.type) {
+        case TYPE_TEXT:
+          lastTextToken = _token2;
+          break;
+
+        case TYPE_NEWLINE:
+          if (lastTextToken) {
+            /* remove trailing space */
+            var _arr = lastTextToken.value.split("");
+
+            while (_arr.length && _arr[_arr.length - 1] == " ") {
+              _arr.pop();
+            }
+
+            lastTextToken.value = _arr.join("");
+          }
+
+          lastTextToken = null;
+          break;
+      }
+    }
+
+    tokens.pop();
+    /* remove fake token */
+
+    return tokens;
+  }
+  /**
+   * Create new tokens and insert them into the stream
+   * @param {object[]} tokens
+   * @param {int} tokenIndex Token being processed
+   * @param {int} breakIndex Index within current token's value
+   * @param {bool} removeBreakChar Do we want to remove the breaking character?
+   * @returns {string} remaining unbroken token value
+   */
+
+
+  function breakInsideToken(tokens, tokenIndex, breakIndex, removeBreakChar) {
+    var newBreakToken = {
+      type: TYPE_NEWLINE
+    };
+    var newTextToken = {
+      type: TYPE_TEXT,
+      value: tokens[tokenIndex].value.substring(breakIndex + (removeBreakChar ? 1 : 0))
+    };
+    tokens.splice(tokenIndex + 1, 0, newBreakToken, newTextToken);
+    return tokens[tokenIndex].value.substring(0, breakIndex);
+  }
+
+  var text =
+  /*#__PURE__*/
+  Object.freeze({
+    TYPE_TEXT: TYPE_TEXT,
+    TYPE_NEWLINE: TYPE_NEWLINE,
+    TYPE_FG: TYPE_FG,
+    TYPE_BG: TYPE_BG,
+    measure: measure,
+    tokenize: tokenize
+  });
+  /** Default with for display and map generators */
+
+  var DEFAULT_WIDTH = 80;
+  /** Default height for display and map generators */
+
+  var DEFAULT_HEIGHT = 25;
+  var DIRS = {
+    4: [[0, -1], [1, 0], [0, 1], [-1, 0]],
+    8: [[0, -1], [1, -1], [1, 0], [1, 1], [0, 1], [-1, 1], [-1, 0], [-1, -1]],
+    6: [[-1, -1], [1, -1], [2, 0], [1, 1], [-1, 1], [-2, 0]]
+  };
+  var KEYS = {
+    /** Cancel key. */
+    VK_CANCEL: 3,
+
+    /** Help key. */
+    VK_HELP: 6,
+
+    /** Backspace key. */
+    VK_BACK_SPACE: 8,
+
+    /** Tab key. */
+    VK_TAB: 9,
+
+    /** 5 key on Numpad when NumLock is unlocked. Or on Mac, clear key which is positioned at NumLock key. */
+    VK_CLEAR: 12,
+
+    /** Return/enter key on the main keyboard. */
+    VK_RETURN: 13,
+
+    /** Reserved, but not used. */
+    VK_ENTER: 14,
+
+    /** Shift key. */
+    VK_SHIFT: 16,
+
+    /** Control key. */
+    VK_CONTROL: 17,
+
+    /** Alt (Option on Mac) key. */
+    VK_ALT: 18,
+
+    /** Pause key. */
+    VK_PAUSE: 19,
+
+    /** Caps lock. */
+    VK_CAPS_LOCK: 20,
+
+    /** Escape key. */
+    VK_ESCAPE: 27,
+
+    /** Space bar. */
+    VK_SPACE: 32,
+
+    /** Page Up key. */
+    VK_PAGE_UP: 33,
+
+    /** Page Down key. */
+    VK_PAGE_DOWN: 34,
+
+    /** End key. */
+    VK_END: 35,
+
+    /** Home key. */
+    VK_HOME: 36,
+
+    /** Left arrow. */
+    VK_LEFT: 37,
+
+    /** Up arrow. */
+    VK_UP: 38,
+
+    /** Right arrow. */
+    VK_RIGHT: 39,
+
+    /** Down arrow. */
+    VK_DOWN: 40,
+
+    /** Print Screen key. */
+    VK_PRINTSCREEN: 44,
+
+    /** Ins(ert) key. */
+    VK_INSERT: 45,
+
+    /** Del(ete) key. */
+    VK_DELETE: 46,
+
+    /***/
+    VK_0: 48,
+
+    /***/
+    VK_1: 49,
+
+    /***/
+    VK_2: 50,
+
+    /***/
+    VK_3: 51,
+
+    /***/
+    VK_4: 52,
+
+    /***/
+    VK_5: 53,
+
+    /***/
+    VK_6: 54,
+
+    /***/
+    VK_7: 55,
+
+    /***/
+    VK_8: 56,
+
+    /***/
+    VK_9: 57,
+
+    /** Colon (:) key. Requires Gecko 15.0 */
+    VK_COLON: 58,
+
+    /** Semicolon (;) key. */
+    VK_SEMICOLON: 59,
+
+    /** Less-than (<) key. Requires Gecko 15.0 */
+    VK_LESS_THAN: 60,
+
+    /** Equals (=) key. */
+    VK_EQUALS: 61,
+
+    /** Greater-than (>) key. Requires Gecko 15.0 */
+    VK_GREATER_THAN: 62,
+
+    /** Question mark (?) key. Requires Gecko 15.0 */
+    VK_QUESTION_MARK: 63,
+
+    /** Atmark (@) key. Requires Gecko 15.0 */
+    VK_AT: 64,
+
+    /***/
+    VK_A: 65,
+
+    /***/
+    VK_B: 66,
+
+    /***/
+    VK_C: 67,
+
+    /***/
+    VK_D: 68,
+
+    /***/
+    VK_E: 69,
+
+    /***/
+    VK_F: 70,
+
+    /***/
+    VK_G: 71,
+
+    /***/
+    VK_H: 72,
+
+    /***/
+    VK_I: 73,
+
+    /***/
+    VK_J: 74,
+
+    /***/
+    VK_K: 75,
+
+    /***/
+    VK_L: 76,
+
+    /***/
+    VK_M: 77,
+
+    /***/
+    VK_N: 78,
+
+    /***/
+    VK_O: 79,
+
+    /***/
+    VK_P: 80,
+
+    /***/
+    VK_Q: 81,
+
+    /***/
+    VK_R: 82,
+
+    /***/
+    VK_S: 83,
+
+    /***/
+    VK_T: 84,
+
+    /***/
+    VK_U: 85,
+
+    /***/
+    VK_V: 86,
+
+    /***/
+    VK_W: 87,
+
+    /***/
+    VK_X: 88,
+
+    /***/
+    VK_Y: 89,
+
+    /***/
+    VK_Z: 90,
+
+    /***/
+    VK_CONTEXT_MENU: 93,
+
+    /** 0 on the numeric keypad. */
+    VK_NUMPAD0: 96,
+
+    /** 1 on the numeric keypad. */
+    VK_NUMPAD1: 97,
+
+    /** 2 on the numeric keypad. */
+    VK_NUMPAD2: 98,
+
+    /** 3 on the numeric keypad. */
+    VK_NUMPAD3: 99,
+
+    /** 4 on the numeric keypad. */
+    VK_NUMPAD4: 100,
+
+    /** 5 on the numeric keypad. */
+    VK_NUMPAD5: 101,
+
+    /** 6 on the numeric keypad. */
+    VK_NUMPAD6: 102,
+
+    /** 7 on the numeric keypad. */
+    VK_NUMPAD7: 103,
+
+    /** 8 on the numeric keypad. */
+    VK_NUMPAD8: 104,
+
+    /** 9 on the numeric keypad. */
+    VK_NUMPAD9: 105,
+
+    /** * on the numeric keypad. */
+    VK_MULTIPLY: 106,
+
+    /** + on the numeric keypad. */
+    VK_ADD: 107,
+
+    /***/
+    VK_SEPARATOR: 108,
+
+    /** - on the numeric keypad. */
+    VK_SUBTRACT: 109,
+
+    /** Decimal point on the numeric keypad. */
+    VK_DECIMAL: 110,
+
+    /** / on the numeric keypad. */
+    VK_DIVIDE: 111,
+
+    /** F1 key. */
+    VK_F1: 112,
+
+    /** F2 key. */
+    VK_F2: 113,
+
+    /** F3 key. */
+    VK_F3: 114,
+
+    /** F4 key. */
+    VK_F4: 115,
+
+    /** F5 key. */
+    VK_F5: 116,
+
+    /** F6 key. */
+    VK_F6: 117,
+
+    /** F7 key. */
+    VK_F7: 118,
+
+    /** F8 key. */
+    VK_F8: 119,
+
+    /** F9 key. */
+    VK_F9: 120,
+
+    /** F10 key. */
+    VK_F10: 121,
+
+    /** F11 key. */
+    VK_F11: 122,
+
+    /** F12 key. */
+    VK_F12: 123,
+
+    /** F13 key. */
+    VK_F13: 124,
+
+    /** F14 key. */
+    VK_F14: 125,
+
+    /** F15 key. */
+    VK_F15: 126,
+
+    /** F16 key. */
+    VK_F16: 127,
+
+    /** F17 key. */
+    VK_F17: 128,
+
+    /** F18 key. */
+    VK_F18: 129,
+
+    /** F19 key. */
+    VK_F19: 130,
+
+    /** F20 key. */
+    VK_F20: 131,
+
+    /** F21 key. */
+    VK_F21: 132,
+
+    /** F22 key. */
+    VK_F22: 133,
+
+    /** F23 key. */
+    VK_F23: 134,
+
+    /** F24 key. */
+    VK_F24: 135,
+
+    /** Num Lock key. */
+    VK_NUM_LOCK: 144,
+
+    /** Scroll Lock key. */
+    VK_SCROLL_LOCK: 145,
+
+    /** Circumflex (^) key. Requires Gecko 15.0 */
+    VK_CIRCUMFLEX: 160,
+
+    /** Exclamation (!) key. Requires Gecko 15.0 */
+    VK_EXCLAMATION: 161,
+
+    /** Double quote () key. Requires Gecko 15.0 */
+    VK_DOUBLE_QUOTE: 162,
+
+    /** Hash (#) key. Requires Gecko 15.0 */
+    VK_HASH: 163,
+
+    /** Dollar sign ($) key. Requires Gecko 15.0 */
+    VK_DOLLAR: 164,
+
+    /** Percent (%) key. Requires Gecko 15.0 */
+    VK_PERCENT: 165,
+
+    /** Ampersand (&) key. Requires Gecko 15.0 */
+    VK_AMPERSAND: 166,
+
+    /** Underscore (_) key. Requires Gecko 15.0 */
+    VK_UNDERSCORE: 167,
+
+    /** Open parenthesis (() key. Requires Gecko 15.0 */
+    VK_OPEN_PAREN: 168,
+
+    /** Close parenthesis ()) key. Requires Gecko 15.0 */
+    VK_CLOSE_PAREN: 169,
+
+    /* Asterisk (*) key. Requires Gecko 15.0 */
+    VK_ASTERISK: 170,
+
+    /** Plus (+) key. Requires Gecko 15.0 */
+    VK_PLUS: 171,
+
+    /** Pipe (|) key. Requires Gecko 15.0 */
+    VK_PIPE: 172,
+
+    /** Hyphen-US/docs/Minus (-) key. Requires Gecko 15.0 */
+    VK_HYPHEN_MINUS: 173,
+
+    /** Open curly bracket ({) key. Requires Gecko 15.0 */
+    VK_OPEN_CURLY_BRACKET: 174,
+
+    /** Close curly bracket (}) key. Requires Gecko 15.0 */
+    VK_CLOSE_CURLY_BRACKET: 175,
+
+    /** Tilde (~) key. Requires Gecko 15.0 */
+    VK_TILDE: 176,
+
+    /** Comma (,) key. */
+    VK_COMMA: 188,
+
+    /** Period (.) key. */
+    VK_PERIOD: 190,
+
+    /** Slash (/) key. */
+    VK_SLASH: 191,
+
+    /** Back tick (`) key. */
+    VK_BACK_QUOTE: 192,
+
+    /** Open square bracket ([) key. */
+    VK_OPEN_BRACKET: 219,
+
+    /** Back slash (\) key. */
+    VK_BACK_SLASH: 220,
+
+    /** Close square bracket (]) key. */
+    VK_CLOSE_BRACKET: 221,
+
+    /** Quote (''') key. */
+    VK_QUOTE: 222,
+
+    /** Meta key on Linux, Command key on Mac. */
+    VK_META: 224,
+
+    /** AltGr key on Linux. Requires Gecko 15.0 */
+    VK_ALTGR: 225,
+
+    /** Windows logo key on Windows. Or Super or Hyper key on Linux. Requires Gecko 15.0 */
+    VK_WIN: 91,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_KANA: 21,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_HANGUL: 21,
+
+    /** 英数 key on Japanese Mac keyboard. Requires Gecko 15.0 */
+    VK_EISU: 22,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_JUNJA: 23,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_FINAL: 24,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_HANJA: 25,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_KANJI: 25,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_CONVERT: 28,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_NONCONVERT: 29,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_ACCEPT: 30,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_MODECHANGE: 31,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_SELECT: 41,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_PRINT: 42,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_EXECUTE: 43,
+
+    /** Linux support for this keycode was added in Gecko 4.0.	 */
+    VK_SLEEP: 95
+  };
+  var BACKENDS = {
+    "hex": Hex,
+    "rect": Rect,
+    "tile": Tile,
+    "tile-gl": TileGL,
+    "term": Term
+  };
+  var DEFAULT_OPTIONS = {
+    width: DEFAULT_WIDTH,
+    height: DEFAULT_HEIGHT,
+    transpose: false,
+    layout: "rect",
+    fontSize: 15,
+    spacing: 1,
+    border: 0,
+    forceSquareRatio: false,
+    fontFamily: "monospace",
+    fontStyle: "",
+    fg: "#ccc",
+    bg: "#000",
+    tileWidth: 32,
+    tileHeight: 32,
+    tileMap: {},
+    tileSet: null,
+    tileColorize: false
+  };
+  /**
+   * @class Visual map display
+   */
+
+  var Display =
+  /*#__PURE__*/
+  function () {
+    function Display(options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._data = {};
+      this._dirty = false; // false = nothing, true = all, object = dirty cells
+
+      this._options = {};
+      options = Object.assign({}, DEFAULT_OPTIONS, options);
+      this.setOptions(options);
+      this.DEBUG = this.DEBUG.bind(this);
+      this._tick = this._tick.bind(this);
+
+      this._backend.schedule(this._tick);
+    }
+    /**
+     * Debug helper, ideal as a map generator callback. Always bound to this.
+     * @param {int} x
+     * @param {int} y
+     * @param {int} what
+     */
+
+
+    var _proto9 = Display.prototype;
+
+    _proto9.DEBUG = function DEBUG(x, y, what) {
+      var colors = [this._options.bg, this._options.fg];
+      this.draw(x, y, null, null, colors[what % colors.length]);
+    };
+    /**
+     * Clear the whole display (cover it with background color)
+     */
+
+
+    _proto9.clear = function clear() {
+      this._data = {};
+      this._dirty = true;
+    };
+    /**
+     * @see ROT.Display
+     */
+
+
+    _proto9.setOptions = function setOptions(options) {
+      Object.assign(this._options, options);
+
+      if (options.width || options.height || options.fontSize || options.fontFamily || options.spacing || options.layout) {
+        if (options.layout) {
+          var ctor = BACKENDS[options.layout];
+          this._backend = new ctor();
+        }
+
+        this._backend.setOptions(this._options);
+
+        this._dirty = true;
+      }
+
+      return this;
+    };
+    /**
+     * Returns currently set options
+     */
+
+
+    _proto9.getOptions = function getOptions() {
+      return this._options;
+    };
+    /**
+     * Returns the DOM node of this display
+     */
+
+
+    _proto9.getContainer = function getContainer() {
+      return this._backend.getContainer();
+    };
+    /**
+     * Compute the maximum width/height to fit into a set of given constraints
+     * @param {int} availWidth Maximum allowed pixel width
+     * @param {int} availHeight Maximum allowed pixel height
+     * @returns {int[2]} cellWidth,cellHeight
+     */
+
+
+    _proto9.computeSize = function computeSize(availWidth, availHeight) {
+      return this._backend.computeSize(availWidth, availHeight);
+    };
+    /**
+     * Compute the maximum font size to fit into a set of given constraints
+     * @param {int} availWidth Maximum allowed pixel width
+     * @param {int} availHeight Maximum allowed pixel height
+     * @returns {int} fontSize
+     */
+
+
+    _proto9.computeFontSize = function computeFontSize(availWidth, availHeight) {
+      return this._backend.computeFontSize(availWidth, availHeight);
+    };
+
+    _proto9.computeTileSize = function computeTileSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._options.width);
+      var height = Math.floor(availHeight / this._options.height);
+      return [width, height];
+    };
+    /**
+     * Convert a DOM event (mouse or touch) to map coordinates. Uses first touch for multi-touch.
+     * @param {Event} e event
+     * @returns {int[2]} -1 for values outside of the canvas
+     */
+
+
+    _proto9.eventToPosition = function eventToPosition(e) {
+      var x, y;
+
+      if ("touches" in e) {
+        x = e.touches[0].clientX;
+        y = e.touches[0].clientY;
+      } else {
+        x = e.clientX;
+        y = e.clientY;
+      }
+
+      return this._backend.eventToPosition(x, y);
+    };
+    /**
+     * @param {int} x
+     * @param {int} y
+     * @param {string || string[]} ch One or more chars (will be overlapping themselves)
+     * @param {string} [fg] foreground color
+     * @param {string} [bg] background color
+     */
+
+
+    _proto9.draw = function draw(x, y, ch, fg, bg) {
+      if (!fg) {
+        fg = this._options.fg;
+      }
+
+      if (!bg) {
+        bg = this._options.bg;
+      }
+
+      var key = x + "," + y;
+      this._data[key] = [x, y, ch, fg, bg];
+
+      if (this._dirty === true) {
+        return;
+      } // will already redraw everything 
+
+
+      if (!this._dirty) {
+        this._dirty = {};
+      } // first!
+
+
+      this._dirty[key] = true;
+    };
+    /**
+     * Draws a text at given position. Optionally wraps at a maximum length. Currently does not work with hex layout.
+     * @param {int} x
+     * @param {int} y
+     * @param {string} text May contain color/background format specifiers, %c{name}/%b{name}, both optional. %c{}/%b{} resets to default.
+     * @param {int} [maxWidth] wrap at what width?
+     * @returns {int} lines drawn
+     */
+
+
+    _proto9.drawText = function drawText(x, y, text, maxWidth) {
+      var fg = null;
+      var bg = null;
+      var cx = x;
+      var cy = y;
+      var lines = 1;
+
+      if (!maxWidth) {
+        maxWidth = this._options.width - x;
+      }
+
+      var tokens = tokenize(text, maxWidth);
+
+      while (tokens.length) {
+        // interpret tokenized opcode stream
+        var token = tokens.shift();
+
+        switch (token.type) {
+          case TYPE_TEXT:
+            var isSpace = false,
+                isPrevSpace = false,
+                isFullWidth = false,
+                isPrevFullWidth = false;
+
+            for (var i = 0; i < token.value.length; i++) {
+              var cc = token.value.charCodeAt(i);
+              var c = token.value.charAt(i); // Assign to `true` when the current char is full-width.
+
+              isFullWidth = cc > 0xff00 && cc < 0xff61 || cc > 0xffdc && cc < 0xffe8 || cc > 0xffee; // Current char is space, whatever full-width or half-width both are OK.
+
+              isSpace = c.charCodeAt(0) == 0x20 || c.charCodeAt(0) == 0x3000; // The previous char is full-width and
+              // current char is nether half-width nor a space.
+
+              if (isPrevFullWidth && !isFullWidth && !isSpace) {
+                cx++;
+              } // add an extra position
+              // The current char is full-width and
+              // the previous char is not a space.
+
+
+              if (isFullWidth && !isPrevSpace) {
+                cx++;
+              } // add an extra position
+
+
+              this.draw(cx++, cy, c, fg, bg);
+              isPrevSpace = isSpace;
+              isPrevFullWidth = isFullWidth;
+            }
+
+            break;
+
+          case TYPE_FG:
+            fg = token.value || null;
+            break;
+
+          case TYPE_BG:
+            bg = token.value || null;
+            break;
+
+          case TYPE_NEWLINE:
+            cx = x;
+            cy++;
+            lines++;
+            break;
+        }
+      }
+
+      return lines;
+    };
+    /**
+     * Timer tick: update dirty parts
+     */
+
+
+    _proto9._tick = function _tick() {
+      this._backend.schedule(this._tick);
+
+      if (!this._dirty) {
+        return;
+      }
+
+      if (this._dirty === true) {
+        // draw all
+        this._backend.clear();
+
+        for (var id in this._data) {
+          this._draw(id, false);
+        } // redraw cached data 
+
+      } else {
+        // draw only dirty 
+        for (var key in this._dirty) {
+          this._draw(key, true);
+        }
+      }
+
+      this._dirty = false;
+    };
+    /**
+     * @param {string} key What to draw
+     * @param {bool} clearBefore Is it necessary to clean before?
+     */
+
+
+    _proto9._draw = function _draw(key, clearBefore) {
+      var data = this._data[key];
+
+      if (data[4] != this._options.bg) {
+        clearBefore = true;
+      }
+
+      this._backend.draw(data, clearBefore);
+    };
+
+    return Display;
+  }();
+
+  Display.Rect = Rect;
+  Display.Hex = Hex;
+  Display.Tile = Tile;
+  Display.TileGL = TileGL;
+  Display.Term = Term;
+  /**
+   * @class (Markov process)-based string generator.
+   * Copied from a <a href="http://www.roguebasin.roguelikedevelopment.org/index.php?title=Names_from_a_high_order_Markov_Process_and_a_simplified_Katz_back-off_scheme">RogueBasin article</a>.
+   * Offers configurable order and prior.
+   */
+
+  var StringGenerator =
+  /*#__PURE__*/
+  function () {
+    function StringGenerator(options) {
+      this._options = {
+        words: false,
+        order: 3,
+        prior: 0.001
+      };
+      Object.assign(this._options, options);
+      this._boundary = String.fromCharCode(0);
+      this._suffix = this._boundary;
+      this._prefix = [];
+
+      for (var i = 0; i < this._options.order; i++) {
+        this._prefix.push(this._boundary);
+      }
+
+      this._priorValues = {};
+      this._priorValues[this._boundary] = this._options.prior;
+      this._data = {};
+    }
+    /**
+     * Remove all learning data
+     */
+
+
+    var _proto10 = StringGenerator.prototype;
+
+    _proto10.clear = function clear() {
+      this._data = {};
+      this._priorValues = {};
+    };
+    /**
+     * @returns {string} Generated string
+     */
+
+
+    _proto10.generate = function generate() {
+      var result = [this._sample(this._prefix)];
+
+      while (result[result.length - 1] != this._boundary) {
+        result.push(this._sample(result));
+      }
+
+      return this._join(result.slice(0, -1));
+    };
+    /**
+     * Observe (learn) a string from a training set
+     */
+
+
+    _proto10.observe = function observe(string) {
+      var tokens = this._split(string);
+
+      for (var i = 0; i < tokens.length; i++) {
+        this._priorValues[tokens[i]] = this._options.prior;
+      }
+
+      tokens = this._prefix.concat(tokens).concat(this._suffix);
+      /* add boundary symbols */
+
+      for (var _i2 = this._options.order; _i2 < tokens.length; _i2++) {
+        var context = tokens.slice(_i2 - this._options.order, _i2);
+        var event = tokens[_i2];
+
+        for (var j = 0; j < context.length; j++) {
+          var subcontext = context.slice(j);
+
+          this._observeEvent(subcontext, event);
+        }
+      }
+    };
+
+    _proto10.getStats = function getStats() {
+      var parts = [];
+      var priorCount = Object.keys(this._priorValues).length;
+      priorCount--; // boundary
+
+      parts.push("distinct samples: " + priorCount);
+      var dataCount = Object.keys(this._data).length;
+      var eventCount = 0;
+
+      for (var p in this._data) {
+        eventCount += Object.keys(this._data[p]).length;
+      }
+
+      parts.push("dictionary size (contexts): " + dataCount);
+      parts.push("dictionary size (events): " + eventCount);
+      return parts.join(", ");
+    };
+    /**
+     * @param {string}
+     * @returns {string[]}
+     */
+
+
+    _proto10._split = function _split(str) {
+      return str.split(this._options.words ? /\s+/ : "");
+    };
+    /**
+     * @param {string[]}
+     * @returns {string}
+     */
+
+
+    _proto10._join = function _join(arr) {
+      return arr.join(this._options.words ? " " : "");
+    };
+    /**
+     * @param {string[]} context
+     * @param {string} event
+     */
+
+
+    _proto10._observeEvent = function _observeEvent(context, event) {
+      var key = this._join(context);
+
+      if (!(key in this._data)) {
+        this._data[key] = {};
+      }
+
+      var data = this._data[key];
+
+      if (!(event in data)) {
+        data[event] = 0;
+      }
+
+      data[event]++;
+    };
+    /**
+     * @param {string[]}
+     * @returns {string}
+     */
+
+
+    _proto10._sample = function _sample(context) {
+      context = this._backoff(context);
+
+      var key = this._join(context);
+
+      var data = this._data[key];
+      var available = {};
+
+      if (this._options.prior) {
+        for (var event in this._priorValues) {
+          available[event] = this._priorValues[event];
+        }
+
+        for (var _event in data) {
+          available[_event] += data[_event];
+        }
+      } else {
+        available = data;
+      }
+
+      return RNG$1.getWeightedValue(available);
+    };
+    /**
+     * @param {string[]}
+     * @returns {string[]}
+     */
+
+
+    _proto10._backoff = function _backoff(context) {
+      if (context.length > this._options.order) {
+        context = context.slice(-this._options.order);
+      } else if (context.length < this._options.order) {
+        context = this._prefix.slice(0, this._options.order - context.length).concat(context);
+      }
+
+      while (!(this._join(context) in this._data) && context.length > 0) {
+        context = context.slice(1);
+      }
+
+      return context;
+    };
+
+    return StringGenerator;
+  }();
+
+  var EventQueue =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Generic event queue: stores events and retrieves them based on their time
+     */
+    function EventQueue() {
+      this._time = 0;
+      this._events = [];
+      this._eventTimes = [];
+    }
+    /**
+     * @returns {number} Elapsed time
+     */
+
+
+    var _proto11 = EventQueue.prototype;
+
+    _proto11.getTime = function getTime() {
+      return this._time;
+    };
+    /**
+     * Clear all scheduled events
+     */
+
+
+    _proto11.clear = function clear() {
+      this._events = [];
+      this._eventTimes = [];
+      return this;
+    };
+    /**
+     * @param {?} event
+     * @param {number} time
+     */
+
+
+    _proto11.add = function add(event, time) {
+      var index = this._events.length;
+
+      for (var i = 0; i < this._eventTimes.length; i++) {
+        if (this._eventTimes[i] > time) {
+          index = i;
+          break;
+        }
+      }
+
+      this._events.splice(index, 0, event);
+
+      this._eventTimes.splice(index, 0, time);
+    };
+    /**
+     * Locates the nearest event, advances time if necessary. Returns that event and removes it from the queue.
+     * @returns {? || null} The event previously added by addEvent, null if no event available
+     */
+
+
+    _proto11.get = function get() {
+      if (!this._events.length) {
+        return null;
+      }
+
+      var time = this._eventTimes.splice(0, 1)[0];
+
+      if (time > 0) {
+        /* advance */
+        this._time += time;
+
+        for (var i = 0; i < this._eventTimes.length; i++) {
+          this._eventTimes[i] -= time;
+        }
+      }
+
+      return this._events.splice(0, 1)[0];
+    };
+    /**
+     * Get the time associated with the given event
+     * @param {?} event
+     * @returns {number} time
+     */
+
+
+    _proto11.getEventTime = function getEventTime(event) {
+      var index = this._events.indexOf(event);
+
+      if (index == -1) {
+        return undefined;
+      }
+
+      return this._eventTimes[index];
+    };
+    /**
+     * Remove an event from the queue
+     * @param {?} event
+     * @returns {bool} success?
+     */
+
+
+    _proto11.remove = function remove(event) {
+      var index = this._events.indexOf(event);
+
+      if (index == -1) {
+        return false;
+      }
+
+      this._remove(index);
+
+      return true;
+    };
+
+    /**
+     * Remove an event from the queue
+     * @param {int} index
+     */
+    _proto11._remove = function _remove(index) {
+      this._events.splice(index, 1);
+
+      this._eventTimes.splice(index, 1);
+    };
+
+    return EventQueue;
+  }();
+
+  var Scheduler =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Abstract scheduler
+     */
+    function Scheduler() {
+      this._queue = new EventQueue();
+      this._repeat = [];
+      this._current = null;
+    }
+    /**
+     * @see ROT.EventQueue#getTime
+     */
+
+
+    var _proto12 = Scheduler.prototype;
+
+    _proto12.getTime = function getTime() {
+      return this._queue.getTime();
+    };
+    /**
+     * @param {?} item
+     * @param {bool} repeat
+     */
+
+
+    _proto12.add = function add(item, repeat) {
+      if (repeat) {
+        this._repeat.push(item);
+      }
+
+      return this;
+    };
+    /**
+     * Get the time the given item is scheduled for
+     * @param {?} item
+     * @returns {number} time
+     */
+
+
+    _proto12.getTimeOf = function getTimeOf(item) {
+      return this._queue.getEventTime(item);
+    };
+    /**
+     * Clear all items
+     */
+
+
+    _proto12.clear = function clear() {
+      this._queue.clear();
+
+      this._repeat = [];
+      this._current = null;
+      return this;
+    };
+    /**
+     * Remove a previously added item
+     * @param {?} item
+     * @returns {bool} successful?
+     */
+
+
+    _proto12.remove = function remove(item) {
+      var result = this._queue.remove(item);
+
+      var index = this._repeat.indexOf(item);
+
+      if (index != -1) {
+        this._repeat.splice(index, 1);
+      }
+
+      if (this._current == item) {
+        this._current = null;
+      }
+
+      return result;
+    };
+    /**
+     * Schedule next item
+     * @returns {?}
+     */
+
+
+    _proto12.next = function next() {
+      this._current = this._queue.get();
+      return this._current;
+    };
+
+    return Scheduler;
+  }();
+  /**
+   * @class Simple fair scheduler (round-robin style)
+   */
+
+
+  var Simple =
+  /*#__PURE__*/
+  function (_Scheduler) {
+    _inheritsLoose(Simple, _Scheduler);
+
+    function Simple() {
+      return _Scheduler.apply(this, arguments) || this;
+    }
+
+    var _proto13 = Simple.prototype;
+
+    _proto13.add = function add(item, repeat) {
+      this._queue.add(item, 0);
+
+      return _Scheduler.prototype.add.call(this, item, repeat);
+    };
+
+    _proto13.next = function next() {
+      if (this._current !== null && this._repeat.indexOf(this._current) != -1) {
+        this._queue.add(this._current, 0);
+      }
+
+      return _Scheduler.prototype.next.call(this);
+    };
+
+    return Simple;
+  }(Scheduler);
+  /**
+   * @class Speed-based scheduler
+   */
+
+
+  var Speed =
+  /*#__PURE__*/
+  function (_Scheduler2) {
+    _inheritsLoose(Speed, _Scheduler2);
+
+    function Speed() {
+      return _Scheduler2.apply(this, arguments) || this;
+    }
+
+    var _proto14 = Speed.prototype;
+
+    /**
+     * @param {object} item anything with "getSpeed" method
+     * @param {bool} repeat
+     * @param {number} [time=1/item.getSpeed()]
+     * @see ROT.Scheduler#add
+     */
+    _proto14.add = function add(item, repeat, time) {
+      this._queue.add(item, time !== undefined ? time : 1 / item.getSpeed());
+
+      return _Scheduler2.prototype.add.call(this, item, repeat);
+    };
+    /**
+     * @see ROT.Scheduler#next
+     */
+
+
+    _proto14.next = function next() {
+      if (this._current && this._repeat.indexOf(this._current) != -1) {
+        this._queue.add(this._current, 1 / this._current.getSpeed());
+      }
+
+      return _Scheduler2.prototype.next.call(this);
+    };
+
+    return Speed;
+  }(Scheduler);
+  /**
+   * @class Action-based scheduler
+   * @augments ROT.Scheduler
+   */
+
+
+  var Action =
+  /*#__PURE__*/
+  function (_Scheduler3) {
+    _inheritsLoose(Action, _Scheduler3);
+
+    function Action() {
+      var _this9;
+
+      _this9 = _Scheduler3.call(this) || this;
+      _this9._defaultDuration = 1;
+      /* for newly added */
+
+      _this9._duration = _this9._defaultDuration;
+      /* for this._current */
+
+      return _this9;
+    }
+    /**
+     * @param {object} item
+     * @param {bool} repeat
+     * @param {number} [time=1]
+     * @see ROT.Scheduler#add
+     */
+
+
+    var _proto15 = Action.prototype;
+
+    _proto15.add = function add(item, repeat, time) {
+      this._queue.add(item, time || this._defaultDuration);
+
+      return _Scheduler3.prototype.add.call(this, item, repeat);
+    };
+
+    _proto15.clear = function clear() {
+      this._duration = this._defaultDuration;
+      return _Scheduler3.prototype.clear.call(this);
+    };
+
+    _proto15.remove = function remove(item) {
+      if (item == this._current) {
+        this._duration = this._defaultDuration;
+      }
+
+      return _Scheduler3.prototype.remove.call(this, item);
+    };
+    /**
+     * @see ROT.Scheduler#next
+     */
+
+
+    _proto15.next = function next() {
+      if (this._current !== null && this._repeat.indexOf(this._current) != -1) {
+        this._queue.add(this._current, this._duration || this._defaultDuration);
+
+        this._duration = this._defaultDuration;
+      }
+
+      return _Scheduler3.prototype.next.call(this);
+    };
+    /**
+     * Set duration for the active item
+     */
+
+
+    _proto15.setDuration = function setDuration(time) {
+      if (this._current) {
+        this._duration = time;
+      }
+
+      return this;
+    };
+
+    return Action;
+  }(Scheduler);
+
+  var index = {
+    Simple: Simple,
+    Speed: Speed,
+    Action: Action
+  };
+
+  var FOV =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Abstract FOV algorithm
+     * @param {function} lightPassesCallback Does the light pass through x,y?
+     * @param {object} [options]
+     * @param {int} [options.topology=8] 4/6/8
+     */
+    function FOV(lightPassesCallback, options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._lightPasses = lightPassesCallback;
+      this._options = Object.assign({
+        topology: 8
+      }, options);
+    }
+    /**
+     * Return all neighbors in a concentric ring
+     * @param {int} cx center-x
+     * @param {int} cy center-y
+     * @param {int} r range
+     */
+
+
+    var _proto16 = FOV.prototype;
+
+    _proto16._getCircle = function _getCircle(cx, cy, r) {
+      var result = [];
+      var dirs, countFactor, startOffset;
+
+      switch (this._options.topology) {
+        case 4:
+          countFactor = 1;
+          startOffset = [0, 1];
+          dirs = [DIRS[8][7], DIRS[8][1], DIRS[8][3], DIRS[8][5]];
+          break;
+
+        case 6:
+          dirs = DIRS[6];
+          countFactor = 1;
+          startOffset = [-1, 1];
+          break;
+
+        case 8:
+          dirs = DIRS[4];
+          countFactor = 2;
+          startOffset = [-1, 1];
+          break;
+
+        default:
+          throw new Error("Incorrect topology for FOV computation");
+          break;
+      }
+      /* starting neighbor */
+
+
+      var x = cx + startOffset[0] * r;
+      var y = cy + startOffset[1] * r;
+      /* circle */
+
+      for (var i = 0; i < dirs.length; i++) {
+        for (var j = 0; j < r * countFactor; j++) {
+          result.push([x, y]);
+          x += dirs[i][0];
+          y += dirs[i][1];
+        }
+      }
+
+      return result;
+    };
+
+    return FOV;
+  }();
+  /**
+   * @class Discrete shadowcasting algorithm. Obsoleted by Precise shadowcasting.
+   * @augments ROT.FOV
+   */
+
+
+  var DiscreteShadowcasting =
+  /*#__PURE__*/
+  function (_FOV) {
+    _inheritsLoose(DiscreteShadowcasting, _FOV);
+
+    function DiscreteShadowcasting() {
+      return _FOV.apply(this, arguments) || this;
+    }
+
+    var _proto17 = DiscreteShadowcasting.prototype;
+
+    _proto17.compute = function compute(x, y, R, callback) {
+      /* this place is always visible */
+      callback(x, y, 0, 1);
+      /* standing in a dark place. FIXME is this a good idea?  */
+
+      if (!this._lightPasses(x, y)) {
+        return;
+      }
+      /* start and end angles */
+
+
+      var DATA = [];
+      var A, B, cx, cy, blocks;
+      /* analyze surrounding cells in concentric rings, starting from the center */
+
+      for (var r = 1; r <= R; r++) {
+        var neighbors = this._getCircle(x, y, r);
+
+        var angle = 360 / neighbors.length;
+
+        for (var i = 0; i < neighbors.length; i++) {
+          cx = neighbors[i][0];
+          cy = neighbors[i][1];
+          A = angle * (i - 0.5);
+          B = A + angle;
+          blocks = !this._lightPasses(cx, cy);
+
+          if (this._visibleCoords(Math.floor(A), Math.ceil(B), blocks, DATA)) {
+            callback(cx, cy, r, 1);
+          }
+
+          if (DATA.length == 2 && DATA[0] == 0 && DATA[1] == 360) {
+            return;
+          }
+          /* cutoff? */
+
+        }
+        /* for all cells in this ring */
+
+      }
+      /* for all rings */
+
+    };
+    /**
+     * @param {int} A start angle
+     * @param {int} B end angle
+     * @param {bool} blocks Does current cell block visibility?
+     * @param {int[][]} DATA shadowed angle pairs
+     */
+
+
+    _proto17._visibleCoords = function _visibleCoords(A, B, blocks, DATA) {
+      if (A < 0) {
+        var v1 = this._visibleCoords(0, B, blocks, DATA);
+
+        var v2 = this._visibleCoords(360 + A, 360, blocks, DATA);
+
+        return v1 || v2;
+      }
+
+      var index = 0;
+
+      while (index < DATA.length && DATA[index] < A) {
+        index++;
+      }
+
+      if (index == DATA.length) {
+        /* completely new shadow */
+        if (blocks) {
+          DATA.push(A, B);
+        }
+
+        return true;
+      }
+
+      var count = 0;
+
+      if (index % 2) {
+        /* this shadow starts in an existing shadow, or within its ending boundary */
+        while (index < DATA.length && DATA[index] < B) {
+          index++;
+          count++;
+        }
+
+        if (count == 0) {
+          return false;
+        }
+
+        if (blocks) {
+          if (count % 2) {
+            DATA.splice(index - count, count, B);
+          } else {
+            DATA.splice(index - count, count);
+          }
+        }
+
+        return true;
+      } else {
+        /* this shadow starts outside an existing shadow, or within a starting boundary */
+        while (index < DATA.length && DATA[index] < B) {
+          index++;
+          count++;
+        }
+        /* visible when outside an existing shadow, or when overlapping */
+
+
+        if (A == DATA[index - count] && count == 1) {
+          return false;
+        }
+
+        if (blocks) {
+          if (count % 2) {
+            DATA.splice(index - count, count, A);
+          } else {
+            DATA.splice(index - count, count, A, B);
+          }
+        }
+
+        return true;
+      }
+    };
+
+    return DiscreteShadowcasting;
+  }(FOV);
+  /**
+   * @class Precise shadowcasting algorithm
+   * @augments ROT.FOV
+   */
+
+
+  var PreciseShadowcasting =
+  /*#__PURE__*/
+  function (_FOV2) {
+    _inheritsLoose(PreciseShadowcasting, _FOV2);
+
+    function PreciseShadowcasting() {
+      return _FOV2.apply(this, arguments) || this;
+    }
+
+    var _proto18 = PreciseShadowcasting.prototype;
+
+    _proto18.compute = function compute(x, y, R, callback) {
+      /* this place is always visible */
+      callback(x, y, 0, 1);
+      /* standing in a dark place. FIXME is this a good idea?  */
+
+      if (!this._lightPasses(x, y)) {
+        return;
+      }
+      /* list of all shadows */
+
+
+      var SHADOWS = [];
+      var cx, cy, blocks, A1, A2, visibility;
+      /* analyze surrounding cells in concentric rings, starting from the center */
+
+      for (var r = 1; r <= R; r++) {
+        var neighbors = this._getCircle(x, y, r);
+
+        var neighborCount = neighbors.length;
+
+        for (var i = 0; i < neighborCount; i++) {
+          cx = neighbors[i][0];
+          cy = neighbors[i][1];
+          /* shift half-an-angle backwards to maintain consistency of 0-th cells */
+
+          A1 = [i ? 2 * i - 1 : 2 * neighborCount - 1, 2 * neighborCount];
+          A2 = [2 * i + 1, 2 * neighborCount];
+          blocks = !this._lightPasses(cx, cy);
+          visibility = this._checkVisibility(A1, A2, blocks, SHADOWS);
+
+          if (visibility) {
+            callback(cx, cy, r, visibility);
+          }
+
+          if (SHADOWS.length == 2 && SHADOWS[0][0] == 0 && SHADOWS[1][0] == SHADOWS[1][1]) {
+            return;
+          }
+          /* cutoff? */
+
+        }
+        /* for all cells in this ring */
+
+      }
+      /* for all rings */
+
+    };
+    /**
+     * @param {int[2]} A1 arc start
+     * @param {int[2]} A2 arc end
+     * @param {bool} blocks Does current arc block visibility?
+     * @param {int[][]} SHADOWS list of active shadows
+     */
+
+
+    _proto18._checkVisibility = function _checkVisibility(A1, A2, blocks, SHADOWS) {
+      if (A1[0] > A2[0]) {
+        /* split into two sub-arcs */
+        var v1 = this._checkVisibility(A1, [A1[1], A1[1]], blocks, SHADOWS);
+
+        var v2 = this._checkVisibility([0, 1], A2, blocks, SHADOWS);
+
+        return (v1 + v2) / 2;
+      }
+      /* index1: first shadow >= A1 */
+
+
+      var index1 = 0,
+          edge1 = false;
+
+      while (index1 < SHADOWS.length) {
+        var old = SHADOWS[index1];
+        var diff = old[0] * A1[1] - A1[0] * old[1];
+
+        if (diff >= 0) {
+          /* old >= A1 */
+          if (diff == 0 && !(index1 % 2)) {
+            edge1 = true;
+          }
+
+          break;
+        }
+
+        index1++;
+      }
+      /* index2: last shadow <= A2 */
+
+
+      var index2 = SHADOWS.length,
+          edge2 = false;
+
+      while (index2--) {
+        var _old = SHADOWS[index2];
+
+        var _diff = A2[0] * _old[1] - _old[0] * A2[1];
+
+        if (_diff >= 0) {
+          /* old <= A2 */
+          if (_diff == 0 && index2 % 2) {
+            edge2 = true;
+          }
+
+          break;
+        }
+      }
+
+      var visible = true;
+
+      if (index1 == index2 && (edge1 || edge2)) {
+        /* subset of existing shadow, one of the edges match */
+        visible = false;
+      } else if (edge1 && edge2 && index1 + 1 == index2 && index2 % 2) {
+        /* completely equivalent with existing shadow */
+        visible = false;
+      } else if (index1 > index2 && index1 % 2) {
+        /* subset of existing shadow, not touching */
+        visible = false;
+      }
+
+      if (!visible) {
+        return 0;
+      }
+      /* fast case: not visible */
+
+
+      var visibleLength;
+      /* compute the length of visible arc, adjust list of shadows (if blocking) */
+
+      var remove = index2 - index1 + 1;
+
+      if (remove % 2) {
+        if (index1 % 2) {
+          /* first edge within existing shadow, second outside */
+          var P = SHADOWS[index1];
+          visibleLength = (A2[0] * P[1] - P[0] * A2[1]) / (P[1] * A2[1]);
+
+          if (blocks) {
+            SHADOWS.splice(index1, remove, A2);
+          }
+        } else {
+          /* second edge within existing shadow, first outside */
+          var _P = SHADOWS[index2];
+          visibleLength = (_P[0] * A1[1] - A1[0] * _P[1]) / (A1[1] * _P[1]);
+
+          if (blocks) {
+            SHADOWS.splice(index1, remove, A1);
+          }
+        }
+      } else {
+        if (index1 % 2) {
+          /* both edges within existing shadows */
+          var P1 = SHADOWS[index1];
+          var P2 = SHADOWS[index2];
+          visibleLength = (P2[0] * P1[1] - P1[0] * P2[1]) / (P1[1] * P2[1]);
+
+          if (blocks) {
+            SHADOWS.splice(index1, remove);
+          }
+        } else {
+          /* both edges outside existing shadows */
+          if (blocks) {
+            SHADOWS.splice(index1, remove, A1, A2);
+          }
+
+          return 1;
+          /* whole arc visible! */
+        }
+      }
+
+      var arcLength = (A2[0] * A1[1] - A1[0] * A2[1]) / (A1[1] * A2[1]);
+      return visibleLength / arcLength;
+    };
+
+    return PreciseShadowcasting;
+  }(FOV);
+  /** Octants used for translating recursive shadowcasting offsets */
+
+
+  var OCTANTS = [[-1, 0, 0, 1], [0, -1, 1, 0], [0, -1, -1, 0], [-1, 0, 0, -1], [1, 0, 0, -1], [0, 1, -1, 0], [0, 1, 1, 0], [1, 0, 0, 1]];
+  /**
+   * @class Recursive shadowcasting algorithm
+   * Currently only supports 4/8 topologies, not hexagonal.
+   * Based on Peter Harkins' implementation of Björn Bergström's algorithm described here: http://www.roguebasin.com/index.php?title=FOV_using_recursive_shadowcasting
+   * @augments ROT.FOV
+   */
+
+  var RecursiveShadowcasting =
+  /*#__PURE__*/
+  function (_FOV3) {
+    _inheritsLoose(RecursiveShadowcasting, _FOV3);
+
+    function RecursiveShadowcasting() {
+      return _FOV3.apply(this, arguments) || this;
+    }
+
+    var _proto19 = RecursiveShadowcasting.prototype;
+
+    /**
+     * Compute visibility for a 360-degree circle
+     * @param {int} x
+     * @param {int} y
+     * @param {int} R Maximum visibility radius
+     * @param {function} callback
+     */
+    _proto19.compute = function compute(x, y, R, callback) {
+      //You can always see your own tile
+      callback(x, y, 0, 1);
+
+      for (var i = 0; i < OCTANTS.length; i++) {
+        this._renderOctant(x, y, OCTANTS[i], R, callback);
+      }
+    };
+    /**
+     * Compute visibility for a 180-degree arc
+     * @param {int} x
+     * @param {int} y
+     * @param {int} R Maximum visibility radius
+     * @param {int} dir Direction to look in (expressed in a ROT.DIRS value);
+     * @param {function} callback
+     */
+
+
+    _proto19.compute180 = function compute180(x, y, R, dir, callback) {
+      //You can always see your own tile
+      callback(x, y, 0, 1);
+      var previousOctant = (dir - 1 + 8) % 8; //Need to retrieve the previous octant to render a full 180 degrees
+
+      var nextPreviousOctant = (dir - 2 + 8) % 8; //Need to retrieve the previous two octants to render a full 180 degrees
+
+      var nextOctant = (dir + 1 + 8) % 8; //Need to grab to next octant to render a full 180 degrees
+
+      this._renderOctant(x, y, OCTANTS[nextPreviousOctant], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[previousOctant], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[dir], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[nextOctant], R, callback);
+    };
+
+    /**
+     * Compute visibility for a 90-degree arc
+     * @param {int} x
+     * @param {int} y
+     * @param {int} R Maximum visibility radius
+     * @param {int} dir Direction to look in (expressed in a ROT.DIRS value);
+     * @param {function} callback
+     */
+    _proto19.compute90 = function compute90(x, y, R, dir, callback) {
+      //You can always see your own tile
+      callback(x, y, 0, 1);
+      var previousOctant = (dir - 1 + 8) % 8; //Need to retrieve the previous octant to render a full 90 degrees
+
+      this._renderOctant(x, y, OCTANTS[dir], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[previousOctant], R, callback);
+    };
+    /**
+     * Render one octant (45-degree arc) of the viewshed
+     * @param {int} x
+     * @param {int} y
+     * @param {int} octant Octant to be rendered
+     * @param {int} R Maximum visibility radius
+     * @param {function} callback
+     */
+
+
+    _proto19._renderOctant = function _renderOctant(x, y, octant, R, callback) {
+      //Radius incremented by 1 to provide same coverage area as other shadowcasting radiuses
+      this._castVisibility(x, y, 1, 1.0, 0.0, R + 1, octant[0], octant[1], octant[2], octant[3], callback);
+    };
+    /**
+     * Actually calculates the visibility
+     * @param {int} startX The starting X coordinate
+     * @param {int} startY The starting Y coordinate
+     * @param {int} row The row to render
+     * @param {float} visSlopeStart The slope to start at
+     * @param {float} visSlopeEnd The slope to end at
+     * @param {int} radius The radius to reach out to
+     * @param {int} xx
+     * @param {int} xy
+     * @param {int} yx
+     * @param {int} yy
+     * @param {function} callback The callback to use when we hit a block that is visible
+     */
+
+
+    _proto19._castVisibility = function _castVisibility(startX, startY, row, visSlopeStart, visSlopeEnd, radius, xx, xy, yx, yy, callback) {
+      if (visSlopeStart < visSlopeEnd) {
+        return;
+      }
+
+      for (var i = row; i <= radius; i++) {
+        var dx = -i - 1;
+        var dy = -i;
+        var blocked = false;
+        var newStart = 0; //'Row' could be column, names here assume octant 0 and would be flipped for half the octants
+
+        while (dx <= 0) {
+          dx += 1; //Translate from relative coordinates to map coordinates
+
+          var mapX = startX + dx * xx + dy * xy;
+          var mapY = startY + dx * yx + dy * yy; //Range of the row
+
+          var slopeStart = (dx - 0.5) / (dy + 0.5);
+          var slopeEnd = (dx + 0.5) / (dy - 0.5); //Ignore if not yet at left edge of Octant
+
+          if (slopeEnd > visSlopeStart) {
+            continue;
+          } //Done if past right edge
+
+
+          if (slopeStart < visSlopeEnd) {
+            break;
+          } //If it's in range, it's visible
+
+
+          if (dx * dx + dy * dy < radius * radius) {
+            callback(mapX, mapY, i, 1);
+          }
+
+          if (!blocked) {
+            //If tile is a blocking tile, cast around it
+            if (!this._lightPasses(mapX, mapY) && i < radius) {
+              blocked = true;
+
+              this._castVisibility(startX, startY, i + 1, visSlopeStart, slopeStart, radius, xx, xy, yx, yy, callback);
+
+              newStart = slopeEnd;
+            }
+          } else {
+            //Keep narrowing if scanning across a block
+            if (!this._lightPasses(mapX, mapY)) {
+              newStart = slopeEnd;
+              continue;
+            } //Block has ended
+
+
+            blocked = false;
+            visSlopeStart = newStart;
+          }
+        }
+
+        if (blocked) {
+          break;
+        }
+      }
+    };
+
+    return RecursiveShadowcasting;
+  }(FOV);
+
+  var index$1 = {
+    DiscreteShadowcasting: DiscreteShadowcasting,
+    PreciseShadowcasting: PreciseShadowcasting,
+    RecursiveShadowcasting: RecursiveShadowcasting
+  };
+
+  var Map =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Base map generator
+     * @param {int} [width=ROT.DEFAULT_WIDTH]
+     * @param {int} [height=ROT.DEFAULT_HEIGHT]
+     */
+    function Map(width, height) {
+      if (width === void 0) {
+        width = DEFAULT_WIDTH;
+      }
+
+      if (height === void 0) {
+        height = DEFAULT_HEIGHT;
+      }
+
+      this._width = width;
+      this._height = height;
+    }
+
+    var _proto20 = Map.prototype;
+
+    _proto20._fillMap = function _fillMap(value) {
+      var map = [];
+
+      for (var i = 0; i < this._width; i++) {
+        map.push([]);
+
+        for (var j = 0; j < this._height; j++) {
+          map[i].push(value);
+        }
+      }
+
+      return map;
+    };
+
+    return Map;
+  }();
+  /**
+   * @class Simple empty rectangular room
+   * @augments ROT.Map
+   */
+
+
+  var Arena =
+  /*#__PURE__*/
+  function (_Map) {
+    _inheritsLoose(Arena, _Map);
+
+    function Arena() {
+      return _Map.apply(this, arguments) || this;
+    }
+
+    var _proto21 = Arena.prototype;
+
+    _proto21.create = function create(callback) {
+      var w = this._width - 1;
+      var h = this._height - 1;
+
+      for (var i = 0; i <= w; i++) {
+        for (var j = 0; j <= h; j++) {
+          var empty = i && j && i < w && j < h;
+          callback(i, j, empty ? 0 : 1);
+        }
+      }
+
+      return this;
+    };
+
+    return Arena;
+  }(Map);
+  /**
+   * @class Dungeon map: has rooms and corridors
+   * @augments ROT.Map
+   */
+
+
+  var Dungeon =
+  /*#__PURE__*/
+  function (_Map2) {
+    _inheritsLoose(Dungeon, _Map2);
+
+    function Dungeon(width, height) {
+      var _this10;
+
+      _this10 = _Map2.call(this, width, height) || this;
+      _this10._rooms = [];
+      _this10._corridors = [];
+      return _this10;
+    }
+    /**
+     * Get all generated rooms
+     * @returns {ROT.Map.Feature.Room[]}
+     */
+
+
+    var _proto22 = Dungeon.prototype;
+
+    _proto22.getRooms = function getRooms() {
+      return this._rooms;
+    };
+    /**
+     * Get all generated corridors
+     * @returns {ROT.Map.Feature.Corridor[]}
+     */
+
+
+    _proto22.getCorridors = function getCorridors() {
+      return this._corridors;
+    };
+
+    return Dungeon;
+  }(Map);
+  /**
+   * @class Dungeon feature; has own .create() method
+   */
+
+
+  var Feature = function Feature() {};
+  /**
+   * @class Room
+   * @augments ROT.Map.Feature
+   * @param {int} x1
+   * @param {int} y1
+   * @param {int} x2
+   * @param {int} y2
+   * @param {int} [doorX]
+   * @param {int} [doorY]
+   */
+
+
+  var Room =
+  /*#__PURE__*/
+  function (_Feature) {
+    _inheritsLoose(Room, _Feature);
+
+    function Room(x1, y1, x2, y2, doorX, doorY) {
+      var _this11;
+
+      _this11 = _Feature.call(this) || this;
+      _this11._x1 = x1;
+      _this11._y1 = y1;
+      _this11._x2 = x2;
+      _this11._y2 = y2;
+      _this11._doors = {};
+
+      if (doorX !== undefined && doorY !== undefined) {
+        _this11.addDoor(doorX, doorY);
+      }
+
+      return _this11;
+    }
+
+    /**
+     * Room of random size, with a given doors and direction
+     */
+    Room.createRandomAt = function createRandomAt(x, y, dx, dy, options) {
+      var min = options.roomWidth[0];
+      var max = options.roomWidth[1];
+      var width = RNG$1.getUniformInt(min, max);
+      min = options.roomHeight[0];
+      max = options.roomHeight[1];
+      var height = RNG$1.getUniformInt(min, max);
+
+      if (dx == 1) {
+        /* to the right */
+        var y2 = y - Math.floor(RNG$1.getUniform() * height);
+        return new this(x + 1, y2, x + width, y2 + height - 1, x, y);
+      }
+
+      if (dx == -1) {
+        /* to the left */
+        var _y = y - Math.floor(RNG$1.getUniform() * height);
+
+        return new this(x - width, _y, x - 1, _y + height - 1, x, y);
+      }
+
+      if (dy == 1) {
+        /* to the bottom */
+        var x2 = x - Math.floor(RNG$1.getUniform() * width);
+        return new this(x2, y + 1, x2 + width - 1, y + height, x, y);
+      }
+
+      if (dy == -1) {
+        /* to the top */
+        var _x = x - Math.floor(RNG$1.getUniform() * width);
+
+        return new this(_x, y - height, _x + width - 1, y - 1, x, y);
+      }
+
+      throw new Error("dx or dy must be 1 or -1");
+    };
+    /**
+     * Room of random size, positioned around center coords
+     */
+
+
+    Room.createRandomCenter = function createRandomCenter(cx, cy, options) {
+      var min = options.roomWidth[0];
+      var max = options.roomWidth[1];
+      var width = RNG$1.getUniformInt(min, max);
+      min = options.roomHeight[0];
+      max = options.roomHeight[1];
+      var height = RNG$1.getUniformInt(min, max);
+      var x1 = cx - Math.floor(RNG$1.getUniform() * width);
+      var y1 = cy - Math.floor(RNG$1.getUniform() * height);
+      var x2 = x1 + width - 1;
+      var y2 = y1 + height - 1;
+      return new this(x1, y1, x2, y2);
+    };
+    /**
+     * Room of random size within a given dimensions
+     */
+
+
+    Room.createRandom = function createRandom(availWidth, availHeight, options) {
+      var min = options.roomWidth[0];
+      var max = options.roomWidth[1];
+      var width = RNG$1.getUniformInt(min, max);
+      min = options.roomHeight[0];
+      max = options.roomHeight[1];
+      var height = RNG$1.getUniformInt(min, max);
+      var left = availWidth - width - 1;
+      var top = availHeight - height - 1;
+      var x1 = 1 + Math.floor(RNG$1.getUniform() * left);
+      var y1 = 1 + Math.floor(RNG$1.getUniform() * top);
+      var x2 = x1 + width - 1;
+      var y2 = y1 + height - 1;
+      return new this(x1, y1, x2, y2);
+    };
+
+    var _proto23 = Room.prototype;
+
+    _proto23.addDoor = function addDoor(x, y) {
+      this._doors[x + "," + y] = 1;
+      return this;
+    };
+    /**
+     * @param {function}
+     */
+
+
+    _proto23.getDoors = function getDoors(cb) {
+      for (var key in this._doors) {
+        var parts = key.split(",");
+        cb(parseInt(parts[0]), parseInt(parts[1]));
+      }
+
+      return this;
+    };
+
+    _proto23.clearDoors = function clearDoors() {
+      this._doors = {};
+      return this;
+    };
+
+    _proto23.addDoors = function addDoors(isWallCallback) {
+      var left = this._x1 - 1;
+      var right = this._x2 + 1;
+      var top = this._y1 - 1;
+      var bottom = this._y2 + 1;
+
+      for (var x = left; x <= right; x++) {
+        for (var y = top; y <= bottom; y++) {
+          if (x != left && x != right && y != top && y != bottom) {
+            continue;
+          }
+
+          if (isWallCallback(x, y)) {
+            continue;
+          }
+
+          this.addDoor(x, y);
+        }
+      }
+
+      return this;
+    };
+
+    _proto23.debug = function debug() {
+      console.log("room", this._x1, this._y1, this._x2, this._y2);
+    };
+
+    _proto23.isValid = function isValid(isWallCallback, canBeDugCallback) {
+      var left = this._x1 - 1;
+      var right = this._x2 + 1;
+      var top = this._y1 - 1;
+      var bottom = this._y2 + 1;
+
+      for (var x = left; x <= right; x++) {
+        for (var y = top; y <= bottom; y++) {
+          if (x == left || x == right || y == top || y == bottom) {
+            if (!isWallCallback(x, y)) {
+              return false;
+            }
+          } else {
+            if (!canBeDugCallback(x, y)) {
+              return false;
+            }
+          }
+        }
+      }
+
+      return true;
+    };
+    /**
+     * @param {function} digCallback Dig callback with a signature (x, y, value). Values: 0 = empty, 1 = wall, 2 = door. Multiple doors are allowed.
+     */
+
+
+    _proto23.create = function create(digCallback) {
+      var left = this._x1 - 1;
+      var right = this._x2 + 1;
+      var top = this._y1 - 1;
+      var bottom = this._y2 + 1;
+      var value = 0;
+
+      for (var x = left; x <= right; x++) {
+        for (var y = top; y <= bottom; y++) {
+          if (x + "," + y in this._doors) {
+            value = 2;
+          } else if (x == left || x == right || y == top || y == bottom) {
+            value = 1;
+          } else {
+            value = 0;
+          }
+
+          digCallback(x, y, value);
+        }
+      }
+    };
+
+    _proto23.getCenter = function getCenter() {
+      return [Math.round((this._x1 + this._x2) / 2), Math.round((this._y1 + this._y2) / 2)];
+    };
+
+    _proto23.getLeft = function getLeft() {
+      return this._x1;
+    };
+
+    _proto23.getRight = function getRight() {
+      return this._x2;
+    };
+
+    _proto23.getTop = function getTop() {
+      return this._y1;
+    };
+
+    _proto23.getBottom = function getBottom() {
+      return this._y2;
+    };
+
+    return Room;
+  }(Feature);
+  /**
+   * @class Corridor
+   * @augments ROT.Map.Feature
+   * @param {int} startX
+   * @param {int} startY
+   * @param {int} endX
+   * @param {int} endY
+   */
+
+
+  var Corridor =
+  /*#__PURE__*/
+  function (_Feature2) {
+    _inheritsLoose(Corridor, _Feature2);
+
+    function Corridor(startX, startY, endX, endY) {
+      var _this12;
+
+      _this12 = _Feature2.call(this) || this;
+      _this12._startX = startX;
+      _this12._startY = startY;
+      _this12._endX = endX;
+      _this12._endY = endY;
+      _this12._endsWithAWall = true;
+      return _this12;
+    }
+
+    Corridor.createRandomAt = function createRandomAt(x, y, dx, dy, options) {
+      var min = options.corridorLength[0];
+      var max = options.corridorLength[1];
+      var length = RNG$1.getUniformInt(min, max);
+      return new this(x, y, x + dx * length, y + dy * length);
+    };
+
+    var _proto24 = Corridor.prototype;
+
+    _proto24.debug = function debug() {
+      console.log("corridor", this._startX, this._startY, this._endX, this._endY);
+    };
+
+    _proto24.isValid = function isValid(isWallCallback, canBeDugCallback) {
+      var sx = this._startX;
+      var sy = this._startY;
+      var dx = this._endX - sx;
+      var dy = this._endY - sy;
+      var length = 1 + Math.max(Math.abs(dx), Math.abs(dy));
+
+      if (dx) {
+        dx = dx / Math.abs(dx);
+      }
+
+      if (dy) {
+        dy = dy / Math.abs(dy);
+      }
+
+      var nx = dy;
+      var ny = -dx;
+      var ok = true;
+
+      for (var i = 0; i < length; i++) {
+        var x = sx + i * dx;
+        var y = sy + i * dy;
+
+        if (!canBeDugCallback(x, y)) {
+          ok = false;
+        }
+
+        if (!isWallCallback(x + nx, y + ny)) {
+          ok = false;
+        }
+
+        if (!isWallCallback(x - nx, y - ny)) {
+          ok = false;
+        }
+
+        if (!ok) {
+          length = i;
+          this._endX = x - dx;
+          this._endY = y - dy;
+          break;
+        }
+      }
+      /**
+       * If the length degenerated, this corridor might be invalid
+       */
+
+      /* not supported */
+
+
+      if (length == 0) {
+        return false;
+      }
+      /* length 1 allowed only if the next space is empty */
+
+
+      if (length == 1 && isWallCallback(this._endX + dx, this._endY + dy)) {
+        return false;
+      }
+      /**
+       * We do not want the corridor to crash into a corner of a room;
+       * if any of the ending corners is empty, the N+1th cell of this corridor must be empty too.
+       *
+       * Situation:
+       * #######1
+       * .......?
+       * #######2
+       *
+       * The corridor was dug from left to right.
+       * 1, 2 - problematic corners, ? = N+1th cell (not dug)
+       */
+
+
+      var firstCornerBad = !isWallCallback(this._endX + dx + nx, this._endY + dy + ny);
+      var secondCornerBad = !isWallCallback(this._endX + dx - nx, this._endY + dy - ny);
+      this._endsWithAWall = isWallCallback(this._endX + dx, this._endY + dy);
+
+      if ((firstCornerBad || secondCornerBad) && this._endsWithAWall) {
+        return false;
+      }
+
+      return true;
+    };
+    /**
+     * @param {function} digCallback Dig callback with a signature (x, y, value). Values: 0 = empty.
+     */
+
+
+    _proto24.create = function create(digCallback) {
+      var sx = this._startX;
+      var sy = this._startY;
+      var dx = this._endX - sx;
+      var dy = this._endY - sy;
+      var length = 1 + Math.max(Math.abs(dx), Math.abs(dy));
+
+      if (dx) {
+        dx = dx / Math.abs(dx);
+      }
+
+      if (dy) {
+        dy = dy / Math.abs(dy);
+      }
+
+      for (var i = 0; i < length; i++) {
+        var x = sx + i * dx;
+        var y = sy + i * dy;
+        digCallback(x, y, 0);
+      }
+
+      return true;
+    };
+
+    _proto24.createPriorityWalls = function createPriorityWalls(priorityWallCallback) {
+      if (!this._endsWithAWall) {
+        return;
+      }
+
+      var sx = this._startX;
+      var sy = this._startY;
+      var dx = this._endX - sx;
+      var dy = this._endY - sy;
+
+      if (dx) {
+        dx = dx / Math.abs(dx);
+      }
+
+      if (dy) {
+        dy = dy / Math.abs(dy);
+      }
+
+      var nx = dy;
+      var ny = -dx;
+      priorityWallCallback(this._endX + dx, this._endY + dy);
+      priorityWallCallback(this._endX + nx, this._endY + ny);
+      priorityWallCallback(this._endX - nx, this._endY - ny);
+    };
+
+    return Corridor;
+  }(Feature);
+  /**
+   * @class Dungeon generator which tries to fill the space evenly. Generates independent rooms and tries to connect them.
+   * @augments ROT.Map.Dungeon
+   */
+
+
+  var Uniform =
+  /*#__PURE__*/
+  function (_Dungeon) {
+    _inheritsLoose(Uniform, _Dungeon);
+
+    function Uniform(width, height, options) {
+      var _this13;
+
+      _this13 = _Dungeon.call(this, width, height) || this;
+      _this13._options = {
+        roomWidth: [3, 9],
+        roomHeight: [3, 5],
+        roomDugPercentage: 0.1,
+        timeLimit: 1000
+        /* we stop after this much time has passed (msec) */
+
+      };
+      Object.assign(_this13._options, options);
+      _this13._map = [];
+      _this13._dug = 0;
+      _this13._roomAttempts = 20;
+      /* new room is created N-times until is considered as impossible to generate */
+
+      _this13._corridorAttempts = 20;
+      /* corridors are tried N-times until the level is considered as impossible to connect */
+
+      _this13._connected = [];
+      /* list of already connected rooms */
+
+      _this13._unconnected = [];
+      /* list of remaining unconnected rooms */
+
+      _this13._digCallback = _this13._digCallback.bind(_assertThisInitialized(_assertThisInitialized(_this13)));
+      _this13._canBeDugCallback = _this13._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(_this13)));
+      _this13._isWallCallback = _this13._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(_this13)));
+      return _this13;
+    }
+    /**
+     * Create a map. If the time limit has been hit, returns null.
+     * @see ROT.Map#create
+     */
+
+
+    var _proto25 = Uniform.prototype;
+
+    _proto25.create = function create(callback) {
+      var t1 = Date.now();
+
+      while (1) {
+        var t2 = Date.now();
+
+        if (t2 - t1 > this._options.timeLimit) {
+          return null;
+        }
+        /* time limit! */
+
+
+        this._map = this._fillMap(1);
+        this._dug = 0;
+        this._rooms = [];
+        this._unconnected = [];
+
+        this._generateRooms();
+
+        if (this._rooms.length < 2) {
+          continue;
+        }
+
+        if (this._generateCorridors()) {
+          break;
+        }
+      }
+
+      if (callback) {
+        for (var i = 0; i < this._width; i++) {
+          for (var j = 0; j < this._height; j++) {
+            callback(i, j, this._map[i][j]);
+          }
+        }
+      }
+
+      return this;
+    };
+    /**
+     * Generates a suitable amount of rooms
+     */
+
+
+    _proto25._generateRooms = function _generateRooms() {
+      var w = this._width - 2;
+      var h = this._height - 2;
+      var room;
+
+      do {
+        room = this._generateRoom();
+
+        if (this._dug / (w * h) > this._options.roomDugPercentage) {
+          break;
+        }
+        /* achieved requested amount of free space */
+
+      } while (room);
+      /* either enough rooms, or not able to generate more of them :) */
+
+    };
+    /**
+     * Try to generate one room
+     */
+
+
+    _proto25._generateRoom = function _generateRoom() {
+      var count = 0;
+
+      while (count < this._roomAttempts) {
+        count++;
+        var room = Room.createRandom(this._width, this._height, this._options);
+
+        if (!room.isValid(this._isWallCallback, this._canBeDugCallback)) {
+          continue;
+        }
+
+        room.create(this._digCallback);
+
+        this._rooms.push(room);
+
+        return room;
+      }
+      /* no room was generated in a given number of attempts */
+
+
+      return null;
+    };
+    /**
+     * Generates connectors beween rooms
+     * @returns {bool} success Was this attempt successfull?
+     */
+
+
+    _proto25._generateCorridors = function _generateCorridors() {
+      var cnt = 0;
+
+      while (cnt < this._corridorAttempts) {
+        cnt++;
+        this._corridors = [];
+        /* dig rooms into a clear map */
+
+        this._map = this._fillMap(1);
+
+        for (var i = 0; i < this._rooms.length; i++) {
+          var room = this._rooms[i];
+          room.clearDoors();
+          room.create(this._digCallback);
+        }
+
+        this._unconnected = RNG$1.shuffle(this._rooms.slice());
+        this._connected = [];
+
+        if (this._unconnected.length) {
+          this._connected.push(this._unconnected.pop());
+        }
+        /* first one is always connected */
+
+
+        while (1) {
+          /* 1. pick random connected room */
+          var connected = RNG$1.getItem(this._connected);
+
+          if (!connected) {
+            break;
+          }
+          /* 2. find closest unconnected */
+
+
+          var room1 = this._closestRoom(this._unconnected, connected);
+
+          if (!room1) {
+            break;
+          }
+          /* 3. connect it to closest connected */
+
+
+          var room2 = this._closestRoom(this._connected, room1);
+
+          if (!room2) {
+            break;
+          }
+
+          var ok = this._connectRooms(room1, room2);
+
+          if (!ok) {
+            break;
+          }
+          /* stop connecting, re-shuffle */
+
+
+          if (!this._unconnected.length) {
+            return true;
+          }
+          /* done; no rooms remain */
+
+        }
+      }
+
+      return false;
+    };
+
+    /**
+     * For a given room, find the closest one from the list
+     */
+    _proto25._closestRoom = function _closestRoom(rooms, room) {
+      var dist = Infinity;
+      var center = room.getCenter();
+      var result = null;
+
+      for (var i = 0; i < rooms.length; i++) {
+        var r = rooms[i];
+        var c = r.getCenter();
+        var dx = c[0] - center[0];
+        var dy = c[1] - center[1];
+        var d = dx * dx + dy * dy;
+
+        if (d < dist) {
+          dist = d;
+          result = r;
+        }
+      }
+
+      return result;
+    };
+
+    _proto25._connectRooms = function _connectRooms(room1, room2) {
+      /*
+          room1.debug();
+          room2.debug();
+      */
+      var center1 = room1.getCenter();
+      var center2 = room2.getCenter();
+      var diffX = center2[0] - center1[0];
+      var diffY = center2[1] - center1[1];
+      var start;
+      var end;
+      var dirIndex1, dirIndex2, min, max, index;
+
+      if (Math.abs(diffX) < Math.abs(diffY)) {
+        /* first try connecting north-south walls */
+        dirIndex1 = diffY > 0 ? 2 : 0;
+        dirIndex2 = (dirIndex1 + 2) % 4;
+        min = room2.getLeft();
+        max = room2.getRight();
+        index = 0;
+      } else {
+        /* first try connecting east-west walls */
+        dirIndex1 = diffX > 0 ? 1 : 3;
+        dirIndex2 = (dirIndex1 + 2) % 4;
+        min = room2.getTop();
+        max = room2.getBottom();
+        index = 1;
+      }
+
+      start = this._placeInWall(room1, dirIndex1);
+      /* corridor will start here */
+
+      if (!start) {
+        return false;
+      }
+
+      if (start[index] >= min && start[index] <= max) {
+        /* possible to connect with straight line (I-like) */
+        end = start.slice();
+        var value = 0;
+
+        switch (dirIndex2) {
+          case 0:
+            value = room2.getTop() - 1;
+            break;
+
+          case 1:
+            value = room2.getRight() + 1;
+            break;
+
+          case 2:
+            value = room2.getBottom() + 1;
+            break;
+
+          case 3:
+            value = room2.getLeft() - 1;
+            break;
+        }
+
+        end[(index + 1) % 2] = value;
+
+        this._digLine([start, end]);
+      } else if (start[index] < min - 1 || start[index] > max + 1) {
+        /* need to switch target wall (L-like) */
+        var diff = start[index] - center2[index];
+        var rotation = 0;
+
+        switch (dirIndex2) {
+          case 0:
+          case 1:
+            rotation = diff < 0 ? 3 : 1;
+            break;
+
+          case 2:
+          case 3:
+            rotation = diff < 0 ? 1 : 3;
+            break;
+        }
+
+        dirIndex2 = (dirIndex2 + rotation) % 4;
+        end = this._placeInWall(room2, dirIndex2);
+
+        if (!end) {
+          return false;
+        }
+
+        var mid = [0, 0];
+        mid[index] = start[index];
+        var index2 = (index + 1) % 2;
+        mid[index2] = end[index2];
+
+        this._digLine([start, mid, end]);
+      } else {
+        /* use current wall pair, but adjust the line in the middle (S-like) */
+        var _index4 = (index + 1) % 2;
+
+        end = this._placeInWall(room2, dirIndex2);
+
+        if (!end) {
+          return false;
+        }
+
+        var _mid = Math.round((end[_index4] + start[_index4]) / 2);
+
+        var mid1 = [0, 0];
+        var mid2 = [0, 0];
+        mid1[index] = start[index];
+        mid1[_index4] = _mid;
+        mid2[index] = end[index];
+        mid2[_index4] = _mid;
+
+        this._digLine([start, mid1, mid2, end]);
+      }
+
+      room1.addDoor(start[0], start[1]);
+      room2.addDoor(end[0], end[1]);
+      index = this._unconnected.indexOf(room1);
+
+      if (index != -1) {
+        this._unconnected.splice(index, 1);
+
+        this._connected.push(room1);
+      }
+
+      index = this._unconnected.indexOf(room2);
+
+      if (index != -1) {
+        this._unconnected.splice(index, 1);
+
+        this._connected.push(room2);
+      }
+
+      return true;
+    };
+
+    _proto25._placeInWall = function _placeInWall(room, dirIndex) {
+      var start = [0, 0];
+      var dir = [0, 0];
+      var length = 0;
+
+      switch (dirIndex) {
+        case 0:
+          dir = [1, 0];
+          start = [room.getLeft(), room.getTop() - 1];
+          length = room.getRight() - room.getLeft() + 1;
+          break;
+
+        case 1:
+          dir = [0, 1];
+          start = [room.getRight() + 1, room.getTop()];
+          length = room.getBottom() - room.getTop() + 1;
+          break;
+
+        case 2:
+          dir = [1, 0];
+          start = [room.getLeft(), room.getBottom() + 1];
+          length = room.getRight() - room.getLeft() + 1;
+          break;
+
+        case 3:
+          dir = [0, 1];
+          start = [room.getLeft() - 1, room.getTop()];
+          length = room.getBottom() - room.getTop() + 1;
+          break;
+      }
+
+      var avail = [];
+      var lastBadIndex = -2;
+
+      for (var i = 0; i < length; i++) {
+        var x = start[0] + i * dir[0];
+        var y = start[1] + i * dir[1];
+        avail.push(null);
+        var isWall = this._map[x][y] == 1;
+
+        if (isWall) {
+          if (lastBadIndex != i - 1) {
+            avail[i] = [x, y];
+          }
+        } else {
+          lastBadIndex = i;
+
+          if (i) {
+            avail[i - 1] = null;
+          }
+        }
+      }
+
+      for (var _i3 = avail.length - 1; _i3 >= 0; _i3--) {
+        if (!avail[_i3]) {
+          avail.splice(_i3, 1);
+        }
+      }
+
+      return avail.length ? RNG$1.getItem(avail) : null;
+    };
+    /**
+     * Dig a polyline.
+     */
+
+
+    _proto25._digLine = function _digLine(points) {
+      for (var i = 1; i < points.length; i++) {
+        var start = points[i - 1];
+        var end = points[i];
+        var corridor = new Corridor(start[0], start[1], end[0], end[1]);
+        corridor.create(this._digCallback);
+
+        this._corridors.push(corridor);
+      }
+    };
+
+    _proto25._digCallback = function _digCallback(x, y, value) {
+      this._map[x][y] = value;
+
+      if (value == 0) {
+        this._dug++;
+      }
+    };
+
+    _proto25._isWallCallback = function _isWallCallback(x, y) {
+      if (x < 0 || y < 0 || x >= this._width || y >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    _proto25._canBeDugCallback = function _canBeDugCallback(x, y) {
+      if (x < 1 || y < 1 || x + 1 >= this._width || y + 1 >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    return Uniform;
+  }(Dungeon);
+  /**
+   * @class Cellular automaton map generator
+   * @augments ROT.Map
+   * @param {int} [width=ROT.DEFAULT_WIDTH]
+   * @param {int} [height=ROT.DEFAULT_HEIGHT]
+   * @param {object} [options] Options
+   * @param {int[]} [options.born] List of neighbor counts for a new cell to be born in empty space
+   * @param {int[]} [options.survive] List of neighbor counts for an existing  cell to survive
+   * @param {int} [options.topology] Topology 4 or 6 or 8
+   */
+
+
+  var Cellular =
+  /*#__PURE__*/
+  function (_Map3) {
+    _inheritsLoose(Cellular, _Map3);
+
+    function Cellular(width, height, options) {
+      var _this14;
+
+      if (options === void 0) {
+        options = {};
+      }
+
+      _this14 = _Map3.call(this, width, height) || this;
+      _this14._options = {
+        born: [5, 6, 7, 8],
+        survive: [4, 5, 6, 7, 8],
+        topology: 8
+      };
+
+      _this14.setOptions(options);
+
+      _this14._dirs = DIRS[_this14._options.topology];
+      _this14._map = _this14._fillMap(0);
+      return _this14;
+    }
+    /**
+     * Fill the map with random values
+     * @param {float} probability Probability for a cell to become alive; 0 = all empty, 1 = all full
+     */
+
+
+    var _proto26 = Cellular.prototype;
+
+    _proto26.randomize = function randomize(probability) {
+      for (var i = 0; i < this._width; i++) {
+        for (var j = 0; j < this._height; j++) {
+          this._map[i][j] = RNG$1.getUniform() < probability ? 1 : 0;
+        }
+      }
+
+      return this;
+    };
+    /**
+     * Change options.
+     * @see ROT.Map.Cellular
+     */
+
+
+    _proto26.setOptions = function setOptions(options) {
+      Object.assign(this._options, options);
+    };
+
+    _proto26.set = function set(x, y, value) {
+      this._map[x][y] = value;
+    };
+
+    _proto26.create = function create(callback) {
+      var newMap = this._fillMap(0);
+
+      var born = this._options.born;
+      var survive = this._options.survive;
+
+      for (var j = 0; j < this._height; j++) {
+        var widthStep = 1;
+        var widthStart = 0;
+
+        if (this._options.topology == 6) {
+          widthStep = 2;
+          widthStart = j % 2;
+        }
+
+        for (var i = widthStart; i < this._width; i += widthStep) {
+          var cur = this._map[i][j];
+
+          var ncount = this._getNeighbors(i, j);
+
+          if (cur && survive.indexOf(ncount) != -1) {
+            /* survive */
+            newMap[i][j] = 1;
+          } else if (!cur && born.indexOf(ncount) != -1) {
+            /* born */
+            newMap[i][j] = 1;
+          }
+        }
+      }
+
+      this._map = newMap;
+      callback && this._serviceCallback(callback);
+    };
+
+    _proto26._serviceCallback = function _serviceCallback(callback) {
+      for (var j = 0; j < this._height; j++) {
+        var widthStep = 1;
+        var widthStart = 0;
+
+        if (this._options.topology == 6) {
+          widthStep = 2;
+          widthStart = j % 2;
+        }
+
+        for (var i = widthStart; i < this._width; i += widthStep) {
+          callback(i, j, this._map[i][j]);
+        }
+      }
+    };
+    /**
+     * Get neighbor count at [i,j] in this._map
+     */
+
+
+    _proto26._getNeighbors = function _getNeighbors(cx, cy) {
+      var result = 0;
+
+      for (var i = 0; i < this._dirs.length; i++) {
+        var dir = this._dirs[i];
+        var x = cx + dir[0];
+        var y = cy + dir[1];
+
+        if (x < 0 || x >= this._width || y < 0 || y >= this._height) {
+          continue;
+        }
+
+        result += this._map[x][y] == 1 ? 1 : 0;
+      }
+
+      return result;
+    };
+    /**
+     * Make sure every non-wall space is accessible.
+     * @param {function} callback to call to display map when do
+     * @param {int} value to consider empty space - defaults to 0
+     * @param {function} callback to call when a new connection is made
+     */
+
+
+    _proto26.connect = function connect(callback, value, connectionCallback) {
+      if (!value) value = 0;
+      var allFreeSpace = [];
+      var notConnected = {}; // find all free space
+
+      var widthStep = 1;
+      var widthStarts = [0, 0];
+
+      if (this._options.topology == 6) {
+        widthStep = 2;
+        widthStarts = [0, 1];
+      }
+
+      for (var y = 0; y < this._height; y++) {
+        for (var x = widthStarts[y % 2]; x < this._width; x += widthStep) {
+          if (this._freeSpace(x, y, value)) {
+            var p = [x, y];
+            notConnected[this._pointKey(p)] = p;
+            allFreeSpace.push([x, y]);
+          }
+        }
+      }
+
+      var start = allFreeSpace[RNG$1.getUniformInt(0, allFreeSpace.length - 1)];
+
+      var key = this._pointKey(start);
+
+      var connected = {};
+      connected[key] = start;
+      delete notConnected[key]; // find what's connected to the starting point
+
+      this._findConnected(connected, notConnected, [start], false, value);
+
+      while (Object.keys(notConnected).length > 0) {
+        // find two points from notConnected to connected
+        var _p = this._getFromTo(connected, notConnected);
+
+        var from = _p[0]; // notConnected
+
+        var to = _p[1]; // connected
+        // find everything connected to the starting point
+
+        var local = {};
+        local[this._pointKey(from)] = from;
+
+        this._findConnected(local, notConnected, [from], true, value); // connect to a connected cell
+
+
+        var tunnelFn = this._options.topology == 6 ? this._tunnelToConnected6 : this._tunnelToConnected;
+        tunnelFn.call(this, to, from, connected, notConnected, value, connectionCallback); // now all of local is connected
+
+        for (var k in local) {
+          var pp = local[k];
+          this._map[pp[0]][pp[1]] = value;
+          connected[k] = pp;
+          delete notConnected[k];
+        }
+      }
+
+      callback && this._serviceCallback(callback);
+    };
+    /**
+     * Find random points to connect. Search for the closest point in the larger space.
+     * This is to minimize the length of the passage while maintaining good performance.
+     */
+
+
+    _proto26._getFromTo = function _getFromTo(connected, notConnected) {
+      var from = [0, 0],
+          to = [0, 0],
+          d;
+      var connectedKeys = Object.keys(connected);
+      var notConnectedKeys = Object.keys(notConnected);
+
+      for (var i = 0; i < 5; i++) {
+        if (connectedKeys.length < notConnectedKeys.length) {
+          var keys = connectedKeys;
+          to = connected[keys[RNG$1.getUniformInt(0, keys.length - 1)]];
+          from = this._getClosest(to, notConnected);
+        } else {
+          var _keys = notConnectedKeys;
+          from = notConnected[_keys[RNG$1.getUniformInt(0, _keys.length - 1)]];
+          to = this._getClosest(from, connected);
+        }
+
+        d = (from[0] - to[0]) * (from[0] - to[0]) + (from[1] - to[1]) * (from[1] - to[1]);
+
+        if (d < 64) {
+          break;
+        }
+      } // console.log(">>> connected=" + to + " notConnected=" + from + " dist=" + d);
+
+
+      return [from, to];
+    };
+
+    _proto26._getClosest = function _getClosest(point, space) {
+      var minPoint = null;
+      var minDist = null;
+
+      for (var k in space) {
+        var p = space[k];
+        var d = (p[0] - point[0]) * (p[0] - point[0]) + (p[1] - point[1]) * (p[1] - point[1]);
+
+        if (minDist == null || d < minDist) {
+          minDist = d;
+          minPoint = p;
+        }
+      }
+
+      return minPoint;
+    };
+
+    _proto26._findConnected = function _findConnected(connected, notConnected, stack, keepNotConnected, value) {
+      while (stack.length > 0) {
+        var p = stack.splice(0, 1)[0];
+        var tests = void 0;
+
+        if (this._options.topology == 6) {
+          tests = [[p[0] + 2, p[1]], [p[0] + 1, p[1] - 1], [p[0] - 1, p[1] - 1], [p[0] - 2, p[1]], [p[0] - 1, p[1] + 1], [p[0] + 1, p[1] + 1]];
+        } else {
+          tests = [[p[0] + 1, p[1]], [p[0] - 1, p[1]], [p[0], p[1] + 1], [p[0], p[1] - 1]];
+        }
+
+        for (var i = 0; i < tests.length; i++) {
+          var key = this._pointKey(tests[i]);
+
+          if (connected[key] == null && this._freeSpace(tests[i][0], tests[i][1], value)) {
+            connected[key] = tests[i];
+
+            if (!keepNotConnected) {
+              delete notConnected[key];
+            }
+
+            stack.push(tests[i]);
+          }
+        }
+      }
+    };
+
+    _proto26._tunnelToConnected = function _tunnelToConnected(to, from, connected, notConnected, value, connectionCallback) {
+      var a, b;
+
+      if (from[0] < to[0]) {
+        a = from;
+        b = to;
+      } else {
+        a = to;
+        b = from;
+      }
+
+      for (var xx = a[0]; xx <= b[0]; xx++) {
+        this._map[xx][a[1]] = value;
+        var p = [xx, a[1]];
+
+        var pkey = this._pointKey(p);
+
+        connected[pkey] = p;
+        delete notConnected[pkey];
+      }
+
+      if (connectionCallback && a[0] < b[0]) {
+        connectionCallback(a, [b[0], a[1]]);
+      } // x is now fixed
+
+
+      var x = b[0];
+
+      if (from[1] < to[1]) {
+        a = from;
+        b = to;
+      } else {
+        a = to;
+        b = from;
+      }
+
+      for (var yy = a[1]; yy < b[1]; yy++) {
+        this._map[x][yy] = value;
+        var _p2 = [x, yy];
+
+        var _pkey = this._pointKey(_p2);
+
+        connected[_pkey] = _p2;
+        delete notConnected[_pkey];
+      }
+
+      if (connectionCallback && a[1] < b[1]) {
+        connectionCallback([b[0], a[1]], [b[0], b[1]]);
+      }
+    };
+
+    _proto26._tunnelToConnected6 = function _tunnelToConnected6(to, from, connected, notConnected, value, connectionCallback) {
+      var a, b;
+
+      if (from[0] < to[0]) {
+        a = from;
+        b = to;
+      } else {
+        a = to;
+        b = from;
+      } // tunnel diagonally until horizontally level
+
+
+      var xx = a[0];
+      var yy = a[1];
+
+      while (!(xx == b[0] && yy == b[1])) {
+        var stepWidth = 2;
+
+        if (yy < b[1]) {
+          yy++;
+          stepWidth = 1;
+        } else if (yy > b[1]) {
+          yy--;
+          stepWidth = 1;
+        }
+
+        if (xx < b[0]) {
+          xx += stepWidth;
+        } else if (xx > b[0]) {
+          xx -= stepWidth;
+        } else if (b[1] % 2) {
+          // Won't step outside map if destination on is map's right edge
+          xx -= stepWidth;
+        } else {
+          // ditto for left edge
+          xx += stepWidth;
+        }
+
+        this._map[xx][yy] = value;
+        var p = [xx, yy];
+
+        var pkey = this._pointKey(p);
+
+        connected[pkey] = p;
+        delete notConnected[pkey];
+      }
+
+      if (connectionCallback) {
+        connectionCallback(from, to);
+      }
+    };
+
+    _proto26._freeSpace = function _freeSpace(x, y, value) {
+      return x >= 0 && x < this._width && y >= 0 && y < this._height && this._map[x][y] == value;
+    };
+
+    _proto26._pointKey = function _pointKey(p) {
+      return p[0] + "." + p[1];
+    };
+
+    return Cellular;
+  }(Map);
+
+  var FEATURES = {
+    "room": Room,
+    "corridor": Corridor
+  };
+  /**
+   * Random dungeon generator using human-like digging patterns.
+   * Heavily based on Mike Anderson's ideas from the "Tyrant" algo, mentioned at
+   * http://www.roguebasin.roguelikedevelopment.org/index.php?title=Dungeon-Building_Algorithm.
+   */
+
+  var Digger =
+  /*#__PURE__*/
+  function (_Dungeon2) {
+    _inheritsLoose(Digger, _Dungeon2);
+
+    function Digger(width, height, options) {
+      var _this15;
+
+      if (options === void 0) {
+        options = {};
+      }
+
+      _this15 = _Dungeon2.call(this, width, height) || this;
+      _this15._options = Object.assign({
+        roomWidth: [3, 9],
+        roomHeight: [3, 5],
+        corridorLength: [3, 10],
+        dugPercentage: 0.2,
+        timeLimit: 1000
+        /* we stop after this much time has passed (msec) */
+
+      }, options);
+      _this15._features = {
+        "room": 4,
+        "corridor": 4
+      };
+      _this15._map = [];
+      _this15._featureAttempts = 20;
+      /* how many times do we try to create a feature on a suitable wall */
+
+      _this15._walls = {};
+      /* these are available for digging */
+
+      _this15._dug = 0;
+      _this15._digCallback = _this15._digCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      _this15._canBeDugCallback = _this15._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      _this15._isWallCallback = _this15._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      _this15._priorityWallCallback = _this15._priorityWallCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      return _this15;
+    }
+
+    var _proto27 = Digger.prototype;
+
+    _proto27.create = function create(callback) {
+      this._rooms = [];
+      this._corridors = [];
+      this._map = this._fillMap(1);
+      this._walls = {};
+      this._dug = 0;
+      var area = (this._width - 2) * (this._height - 2);
+
+      this._firstRoom();
+
+      var t1 = Date.now();
+      var priorityWalls;
+
+      do {
+        priorityWalls = 0;
+        var t2 = Date.now();
+
+        if (t2 - t1 > this._options.timeLimit) {
+          break;
+        }
+        /* find a good wall */
+
+
+        var wall = this._findWall();
+
+        if (!wall) {
+          break;
+        }
+        /* no more walls */
+
+
+        var parts = wall.split(",");
+        var x = parseInt(parts[0]);
+        var y = parseInt(parts[1]);
+
+        var dir = this._getDiggingDirection(x, y);
+
+        if (!dir) {
+          continue;
+        }
+        /* this wall is not suitable */
+        //		console.log("wall", x, y);
+
+        /* try adding a feature */
+
+
+        var featureAttempts = 0;
+
+        do {
+          featureAttempts++;
+
+          if (this._tryFeature(x, y, dir[0], dir[1])) {
+            /* feature added */
+            //if (this._rooms.length + this._corridors.length == 2) { this._rooms[0].addDoor(x, y); } /* first room oficially has doors */
+            this._removeSurroundingWalls(x, y);
+
+            this._removeSurroundingWalls(x - dir[0], y - dir[1]);
+
+            break;
+          }
+        } while (featureAttempts < this._featureAttempts);
+
+        for (var id in this._walls) {
+          if (this._walls[id] > 1) {
+            priorityWalls++;
+          }
+        }
+      } while (this._dug / area < this._options.dugPercentage || priorityWalls);
+      /* fixme number of priority walls */
+
+
+      this._addDoors();
+
+      if (callback) {
+        for (var i = 0; i < this._width; i++) {
+          for (var j = 0; j < this._height; j++) {
+            callback(i, j, this._map[i][j]);
+          }
+        }
+      }
+
+      this._walls = {};
+      this._map = [];
+      return this;
+    };
+
+    _proto27._digCallback = function _digCallback(x, y, value) {
+      if (value == 0 || value == 2) {
+        /* empty */
+        this._map[x][y] = 0;
+        this._dug++;
+      } else {
+        /* wall */
+        this._walls[x + "," + y] = 1;
+      }
+    };
+
+    _proto27._isWallCallback = function _isWallCallback(x, y) {
+      if (x < 0 || y < 0 || x >= this._width || y >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    _proto27._canBeDugCallback = function _canBeDugCallback(x, y) {
+      if (x < 1 || y < 1 || x + 1 >= this._width || y + 1 >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    _proto27._priorityWallCallback = function _priorityWallCallback(x, y) {
+      this._walls[x + "," + y] = 2;
+    };
+
+    _proto27._firstRoom = function _firstRoom() {
+      var cx = Math.floor(this._width / 2);
+      var cy = Math.floor(this._height / 2);
+      var room = Room.createRandomCenter(cx, cy, this._options);
+
+      this._rooms.push(room);
+
+      room.create(this._digCallback);
+    };
+    /**
+     * Get a suitable wall
+     */
+
+
+    _proto27._findWall = function _findWall() {
+      var prio1 = [];
+      var prio2 = [];
+
+      for (var _id2 in this._walls) {
+        var prio = this._walls[_id2];
+
+        if (prio == 2) {
+          prio2.push(_id2);
+        } else {
+          prio1.push(_id2);
+        }
+      }
+
+      var arr = prio2.length ? prio2 : prio1;
+
+      if (!arr.length) {
+        return null;
+      }
+      /* no walls :/ */
+
+
+      var id = RNG$1.getItem(arr.sort()); // sort to make the order deterministic
+
+      delete this._walls[id];
+      return id;
+    };
+    /**
+     * Tries adding a feature
+     * @returns {bool} was this a successful try?
+     */
+
+
+    _proto27._tryFeature = function _tryFeature(x, y, dx, dy) {
+      var featureName = RNG$1.getWeightedValue(this._features);
+      var ctor = FEATURES[featureName];
+      var feature = ctor.createRandomAt(x, y, dx, dy, this._options);
+
+      if (!feature.isValid(this._isWallCallback, this._canBeDugCallback)) {
+        //		console.log("not valid");
+        //		feature.debug();
+        return false;
+      }
+
+      feature.create(this._digCallback); //	feature.debug();
+
+      if (feature instanceof Room) {
+        this._rooms.push(feature);
+      }
+
+      if (feature instanceof Corridor) {
+        feature.createPriorityWalls(this._priorityWallCallback);
+
+        this._corridors.push(feature);
+      }
+
+      return true;
+    };
+
+    _proto27._removeSurroundingWalls = function _removeSurroundingWalls(cx, cy) {
+      var deltas = DIRS[4];
+
+      for (var i = 0; i < deltas.length; i++) {
+        var delta = deltas[i];
+        var x = cx + delta[0];
+        var y = cy + delta[1];
+        delete this._walls[x + "," + y];
+        x = cx + 2 * delta[0];
+        y = cy + 2 * delta[1];
+        delete this._walls[x + "," + y];
+      }
+    };
+    /**
+     * Returns vector in "digging" direction, or false, if this does not exist (or is not unique)
+     */
+
+
+    _proto27._getDiggingDirection = function _getDiggingDirection(cx, cy) {
+      if (cx <= 0 || cy <= 0 || cx >= this._width - 1 || cy >= this._height - 1) {
+        return null;
+      }
+
+      var result = null;
+      var deltas = DIRS[4];
+
+      for (var i = 0; i < deltas.length; i++) {
+        var delta = deltas[i];
+        var x = cx + delta[0];
+        var y = cy + delta[1];
+
+        if (!this._map[x][y]) {
+          /* there already is another empty neighbor! */
+          if (result) {
+            return null;
+          }
+
+          result = delta;
+        }
+      }
+      /* no empty neighbor */
+
+
+      if (!result) {
+        return null;
+      }
+
+      return [-result[0], -result[1]];
+    };
+    /**
+     * Find empty spaces surrounding rooms, and apply doors.
+     */
+
+
+    _proto27._addDoors = function _addDoors() {
+      var data = this._map;
+
+      function isWallCallback(x, y) {
+        return data[x][y] == 1;
+      }
+
+      for (var i = 0; i < this._rooms.length; i++) {
+        var room = this._rooms[i];
+        room.clearDoors();
+        room.addDoors(isWallCallback);
+      }
+    };
+
+    return Digger;
+  }(Dungeon);
+  /**
+   * Join lists with "i" and "i+1"
+   */
+
+
+  function addToList(i, L, R) {
+    R[L[i + 1]] = R[i];
+    L[R[i]] = L[i + 1];
+    R[i] = i + 1;
+    L[i + 1] = i;
+  }
+  /**
+   * Remove "i" from its list
+   */
+
+
+  function removeFromList(i, L, R) {
+    R[L[i]] = R[i];
+    L[R[i]] = L[i];
+    R[i] = i;
+    L[i] = i;
+  }
+  /**
+   * Maze generator - Eller's algorithm
+   * See http://homepages.cwi.nl/~tromp/maze.html for explanation
+   */
+
+
+  var EllerMaze =
+  /*#__PURE__*/
+  function (_Map4) {
+    _inheritsLoose(EllerMaze, _Map4);
+
+    function EllerMaze() {
+      return _Map4.apply(this, arguments) || this;
+    }
+
+    var _proto28 = EllerMaze.prototype;
+
+    _proto28.create = function create(callback) {
+      var map = this._fillMap(1);
+
+      var w = Math.ceil((this._width - 2) / 2);
+      var rand = 9 / 24;
+      var L = [];
+      var R = [];
+
+      for (var i = 0; i < w; i++) {
+        L.push(i);
+        R.push(i);
+      }
+
+      L.push(w - 1);
+      /* fake stop-block at the right side */
+
+      var j;
+
+      for (j = 1; j + 3 < this._height; j += 2) {
+        /* one row */
+        for (var _i4 = 0; _i4 < w; _i4++) {
+          /* cell coords (will be always empty) */
+          var x = 2 * _i4 + 1;
+          var y = j;
+          map[x][y] = 0;
+          /* right connection */
+
+          if (_i4 != L[_i4 + 1] && RNG$1.getUniform() > rand) {
+            addToList(_i4, L, R);
+            map[x + 1][y] = 0;
+          }
+          /* bottom connection */
+
+
+          if (_i4 != L[_i4] && RNG$1.getUniform() > rand) {
+            /* remove connection */
+            removeFromList(_i4, L, R);
+          } else {
+            /* create connection */
+            map[x][y + 1] = 0;
+          }
+        }
+      }
+      /* last row */
+
+
+      for (var _i5 = 0; _i5 < w; _i5++) {
+        /* cell coords (will be always empty) */
+        var _x2 = 2 * _i5 + 1;
+
+        var _y2 = j;
+        map[_x2][_y2] = 0;
+        /* right connection */
+
+        if (_i5 != L[_i5 + 1] && (_i5 == L[_i5] || RNG$1.getUniform() > rand)) {
+          /* dig right also if the cell is separated, so it gets connected to the rest of maze */
+          addToList(_i5, L, R);
+          map[_x2 + 1][_y2] = 0;
+        }
+
+        removeFromList(_i5, L, R);
+      }
+
+      for (var _i6 = 0; _i6 < this._width; _i6++) {
+        for (var _j = 0; _j < this._height; _j++) {
+          callback(_i6, _j, map[_i6][_j]);
+        }
+      }
+
+      return this;
+    };
+
+    return EllerMaze;
+  }(Map);
+  /**
+   * @class Recursively divided maze, http://en.wikipedia.org/wiki/Maze_generation_algorithm#Recursive_division_method
+   * @augments ROT.Map
+   */
+
+
+  var DividedMaze =
+  /*#__PURE__*/
+  function (_Map5) {
+    _inheritsLoose(DividedMaze, _Map5);
+
+    function DividedMaze() {
+      var _this16;
+
+      _this16 = _Map5.apply(this, arguments) || this;
+      _this16._stack = [];
+      _this16._map = [];
+      return _this16;
+    }
+
+    var _proto29 = DividedMaze.prototype;
+
+    _proto29.create = function create(callback) {
+      var w = this._width;
+      var h = this._height;
+      this._map = [];
+
+      for (var i = 0; i < w; i++) {
+        this._map.push([]);
+
+        for (var j = 0; j < h; j++) {
+          var border = i == 0 || j == 0 || i + 1 == w || j + 1 == h;
+
+          this._map[i].push(border ? 1 : 0);
+        }
+      }
+
+      this._stack = [[1, 1, w - 2, h - 2]];
+
+      this._process();
+
+      for (var _i7 = 0; _i7 < w; _i7++) {
+        for (var _j2 = 0; _j2 < h; _j2++) {
+          callback(_i7, _j2, this._map[_i7][_j2]);
+        }
+      }
+
+      this._map = [];
+      return this;
+    };
+
+    _proto29._process = function _process() {
+      while (this._stack.length) {
+        var room = this._stack.shift();
+        /* [left, top, right, bottom] */
+
+
+        this._partitionRoom(room);
+      }
+    };
+
+    _proto29._partitionRoom = function _partitionRoom(room) {
+      var availX = [];
+      var availY = [];
+
+      for (var i = room[0] + 1; i < room[2]; i++) {
+        var top = this._map[i][room[1] - 1];
+        var bottom = this._map[i][room[3] + 1];
+
+        if (top && bottom && !(i % 2)) {
+          availX.push(i);
+        }
+      }
+
+      for (var j = room[1] + 1; j < room[3]; j++) {
+        var left = this._map[room[0] - 1][j];
+        var right = this._map[room[2] + 1][j];
+
+        if (left && right && !(j % 2)) {
+          availY.push(j);
+        }
+      }
+
+      if (!availX.length || !availY.length) {
+        return;
+      }
+
+      var x = RNG$1.getItem(availX);
+      var y = RNG$1.getItem(availY);
+      this._map[x][y] = 1;
+      var walls = [];
+      var w = [];
+      walls.push(w);
+      /* left part */
+
+      for (var _i8 = room[0]; _i8 < x; _i8++) {
+        this._map[_i8][y] = 1;
+        w.push([_i8, y]);
+      }
+
+      w = [];
+      walls.push(w);
+      /* right part */
+
+      for (var _i9 = x + 1; _i9 <= room[2]; _i9++) {
+        this._map[_i9][y] = 1;
+        w.push([_i9, y]);
+      }
+
+      w = [];
+      walls.push(w);
+      /* top part */
+
+      for (var _j3 = room[1]; _j3 < y; _j3++) {
+        this._map[x][_j3] = 1;
+        w.push([x, _j3]);
+      }
+
+      w = [];
+      walls.push(w);
+      /* bottom part */
+
+      for (var _j4 = y + 1; _j4 <= room[3]; _j4++) {
+        this._map[x][_j4] = 1;
+        w.push([x, _j4]);
+      }
+
+      var solid = RNG$1.getItem(walls);
+
+      for (var _i10 = 0; _i10 < walls.length; _i10++) {
+        var _w = walls[_i10];
+
+        if (_w == solid) {
+          continue;
+        }
+
+        var hole = RNG$1.getItem(_w);
+        this._map[hole[0]][hole[1]] = 0;
+      }
+
+      this._stack.push([room[0], room[1], x - 1, y - 1]);
+      /* left top */
+
+
+      this._stack.push([x + 1, room[1], room[2], y - 1]);
+      /* right top */
+
+
+      this._stack.push([room[0], y + 1, x - 1, room[3]]);
+      /* left bottom */
+
+
+      this._stack.push([x + 1, y + 1, room[2], room[3]]);
+      /* right bottom */
+
+    };
+
+    return DividedMaze;
+  }(Map);
+  /**
+   * Icey's Maze generator
+   * See http://www.roguebasin.roguelikedevelopment.org/index.php?title=Simple_maze for explanation
+   */
+
+
+  var IceyMaze =
+  /*#__PURE__*/
+  function (_Map6) {
+    _inheritsLoose(IceyMaze, _Map6);
+
+    function IceyMaze(width, height, regularity) {
+      var _this17;
+
+      if (regularity === void 0) {
+        regularity = 0;
+      }
+
+      _this17 = _Map6.call(this, width, height) || this;
+      _this17._regularity = regularity;
+      _this17._map = [];
+      return _this17;
+    }
+
+    var _proto30 = IceyMaze.prototype;
+
+    _proto30.create = function create(callback) {
+      var width = this._width;
+      var height = this._height;
+
+      var map = this._fillMap(1);
+
+      width -= width % 2 ? 1 : 2;
+      height -= height % 2 ? 1 : 2;
+      var cx = 0;
+      var cy = 0;
+      var nx = 0;
+      var ny = 0;
+      var done = 0;
+      var blocked = false;
+      var dirs = [[0, 0], [0, 0], [0, 0], [0, 0]];
+
+      do {
+        cx = 1 + 2 * Math.floor(RNG$1.getUniform() * (width - 1) / 2);
+        cy = 1 + 2 * Math.floor(RNG$1.getUniform() * (height - 1) / 2);
+
+        if (!done) {
+          map[cx][cy] = 0;
+        }
+
+        if (!map[cx][cy]) {
+          this._randomize(dirs);
+
+          do {
+            if (Math.floor(RNG$1.getUniform() * (this._regularity + 1)) == 0) {
+              this._randomize(dirs);
+            }
+
+            blocked = true;
+
+            for (var i = 0; i < 4; i++) {
+              nx = cx + dirs[i][0] * 2;
+              ny = cy + dirs[i][1] * 2;
+
+              if (this._isFree(map, nx, ny, width, height)) {
+                map[nx][ny] = 0;
+                map[cx + dirs[i][0]][cy + dirs[i][1]] = 0;
+                cx = nx;
+                cy = ny;
+                blocked = false;
+                done++;
+                break;
+              }
+            }
+          } while (!blocked);
+        }
+      } while (done + 1 < width * height / 4);
+
+      for (var _i11 = 0; _i11 < this._width; _i11++) {
+        for (var j = 0; j < this._height; j++) {
+          callback(_i11, j, map[_i11][j]);
+        }
+      }
+
+      this._map = [];
+      return this;
+    };
+
+    _proto30._randomize = function _randomize(dirs) {
+      for (var i = 0; i < 4; i++) {
+        dirs[i][0] = 0;
+        dirs[i][1] = 0;
+      }
+
+      switch (Math.floor(RNG$1.getUniform() * 4)) {
+        case 0:
+          dirs[0][0] = -1;
+          dirs[1][0] = 1;
+          dirs[2][1] = -1;
+          dirs[3][1] = 1;
+          break;
+
+        case 1:
+          dirs[3][0] = -1;
+          dirs[2][0] = 1;
+          dirs[1][1] = -1;
+          dirs[0][1] = 1;
+          break;
+
+        case 2:
+          dirs[2][0] = -1;
+          dirs[3][0] = 1;
+          dirs[0][1] = -1;
+          dirs[1][1] = 1;
+          break;
+
+        case 3:
+          dirs[1][0] = -1;
+          dirs[0][0] = 1;
+          dirs[3][1] = -1;
+          dirs[2][1] = 1;
+          break;
+      }
+    };
+
+    _proto30._isFree = function _isFree(map, x, y, width, height) {
+      if (x < 1 || y < 1 || x >= width || y >= height) {
+        return false;
+      }
+
+      return map[x][y];
+    };
+
+    return IceyMaze;
+  }(Map);
+  /**
+   * Dungeon generator which uses the "orginal" Rogue dungeon generation algorithm. See http://kuoi.com/~kamikaze/GameDesign/art07_rogue_dungeon.php
+   * @author hyakugei
+   */
+
+
+  var Rogue =
+  /*#__PURE__*/
+  function (_Map7) {
+    _inheritsLoose(Rogue, _Map7);
+
+    function Rogue(width, height, options) {
+      var _this18;
+
+      _this18 = _Map7.call(this, width, height) || this;
+      _this18.map = [];
+      _this18.rooms = [];
+      _this18.connectedCells = [];
+      options = Object.assign({
+        cellWidth: 3,
+        cellHeight: 3 //     ie. as an array with min-max values for each direction....
+
+      }, options);
+      /*
+      Set the room sizes according to the over-all width of the map,
+      and the cell sizes.
+      */
+
+      if (!options.hasOwnProperty("roomWidth")) {
+        options["roomWidth"] = _this18._calculateRoomSize(_this18._width, options["cellWidth"]);
+      }
+
+      if (!options.hasOwnProperty("roomHeight")) {
+        options["roomHeight"] = _this18._calculateRoomSize(_this18._height, options["cellHeight"]);
+      }
+
+      _this18._options = options;
+      return _this18;
+    }
+
+    var _proto31 = Rogue.prototype;
+
+    _proto31.create = function create(callback) {
+      this.map = this._fillMap(1);
+      this.rooms = [];
+      this.connectedCells = [];
+
+      this._initRooms();
+
+      this._connectRooms();
+
+      this._connectUnconnectedRooms();
+
+      this._createRandomRoomConnections();
+
+      this._createRooms();
+
+      this._createCorridors();
+
+      if (callback) {
+        for (var i = 0; i < this._width; i++) {
+          for (var j = 0; j < this._height; j++) {
+            callback(i, j, this.map[i][j]);
+          }
+        }
+      }
+
+      return this;
+    };
+
+    _proto31._calculateRoomSize = function _calculateRoomSize(size, cell) {
+      var max = Math.floor(size / cell * 0.8);
+      var min = Math.floor(size / cell * 0.25);
+
+      if (min < 2) {
+        min = 2;
+      }
+
+      if (max < 2) {
+        max = 2;
+      }
+
+      return [min, max];
+    };
+
+    _proto31._initRooms = function _initRooms() {
+      // create rooms array. This is the "grid" list from the algo.
+      for (var i = 0; i < this._options.cellWidth; i++) {
+        this.rooms.push([]);
+
+        for (var j = 0; j < this._options.cellHeight; j++) {
+          this.rooms[i].push({
+            "x": 0,
+            "y": 0,
+            "width": 0,
+            "height": 0,
+            "connections": [],
+            "cellx": i,
+            "celly": j
+          });
+        }
+      }
+    };
+
+    _proto31._connectRooms = function _connectRooms() {
+      //pick random starting grid
+      var cgx = RNG$1.getUniformInt(0, this._options.cellWidth - 1);
+      var cgy = RNG$1.getUniformInt(0, this._options.cellHeight - 1);
+      var idx;
+      var ncgx;
+      var ncgy;
+      var found = false;
+      var room;
+      var otherRoom;
+      var dirToCheck; // find  unconnected neighbour cells
+
+      do {
+        //dirToCheck = [0, 1, 2, 3, 4, 5, 6, 7];
+        dirToCheck = [0, 2, 4, 6];
+        dirToCheck = RNG$1.shuffle(dirToCheck);
+
+        do {
+          found = false;
+          idx = dirToCheck.pop();
+          ncgx = cgx + DIRS[8][idx][0];
+          ncgy = cgy + DIRS[8][idx][1];
+
+          if (ncgx < 0 || ncgx >= this._options.cellWidth) {
+            continue;
+          }
+
+          if (ncgy < 0 || ncgy >= this._options.cellHeight) {
+            continue;
+          }
+
+          room = this.rooms[cgx][cgy];
+
+          if (room["connections"].length > 0) {
+            // as long as this room doesn't already coonect to me, we are ok with it.
+            if (room["connections"][0][0] == ncgx && room["connections"][0][1] == ncgy) {
+              break;
+            }
+          }
+
+          otherRoom = this.rooms[ncgx][ncgy];
+
+          if (otherRoom["connections"].length == 0) {
+            otherRoom["connections"].push([cgx, cgy]);
+            this.connectedCells.push([ncgx, ncgy]);
+            cgx = ncgx;
+            cgy = ncgy;
+            found = true;
+          }
+        } while (dirToCheck.length > 0 && found == false);
+      } while (dirToCheck.length > 0);
+    };
+
+    _proto31._connectUnconnectedRooms = function _connectUnconnectedRooms() {
+      //While there are unconnected rooms, try to connect them to a random connected neighbor
+      //(if a room has no connected neighbors yet, just keep cycling, you'll fill out to it eventually).
+      var cw = this._options.cellWidth;
+      var ch = this._options.cellHeight;
+      this.connectedCells = RNG$1.shuffle(this.connectedCells);
+      var room;
+      var otherRoom;
+      var validRoom;
+
+      for (var i = 0; i < this._options.cellWidth; i++) {
+        for (var j = 0; j < this._options.cellHeight; j++) {
+          room = this.rooms[i][j];
+
+          if (room["connections"].length == 0) {
+            var directions = [0, 2, 4, 6];
+            directions = RNG$1.shuffle(directions);
+            validRoom = false;
+
+            do {
+              var dirIdx = directions.pop();
+              var newI = i + DIRS[8][dirIdx][0];
+              var newJ = j + DIRS[8][dirIdx][1];
+
+              if (newI < 0 || newI >= cw || newJ < 0 || newJ >= ch) {
+                continue;
+              }
+
+              otherRoom = this.rooms[newI][newJ];
+              validRoom = true;
+
+              if (otherRoom["connections"].length == 0) {
+                break;
+              }
+
+              for (var k = 0; k < otherRoom["connections"].length; k++) {
+                if (otherRoom["connections"][k][0] == i && otherRoom["connections"][k][1] == j) {
+                  validRoom = false;
+                  break;
+                }
+              }
+
+              if (validRoom) {
+                break;
+              }
+            } while (directions.length);
+
+            if (validRoom) {
+              room["connections"].push([otherRoom["cellx"], otherRoom["celly"]]);
+            } else {
+              console.log("-- Unable to connect room.");
+            }
+          }
+        }
+      }
+    };
+
+    _proto31._createRandomRoomConnections = function _createRandomRoomConnections() {// Empty for now.
+    };
+
+    _proto31._createRooms = function _createRooms() {
+      var w = this._width;
+      var h = this._height;
+      var cw = this._options.cellWidth;
+      var ch = this._options.cellHeight;
+      var cwp = Math.floor(this._width / cw);
+      var chp = Math.floor(this._height / ch);
+      var roomw;
+      var roomh;
+      var roomWidth = this._options["roomWidth"];
+      var roomHeight = this._options["roomHeight"];
+      var sx;
+      var sy;
+      var otherRoom;
+
+      for (var i = 0; i < cw; i++) {
+        for (var j = 0; j < ch; j++) {
+          sx = cwp * i;
+          sy = chp * j;
+
+          if (sx == 0) {
+            sx = 1;
+          }
+
+          if (sy == 0) {
+            sy = 1;
+          }
+
+          roomw = RNG$1.getUniformInt(roomWidth[0], roomWidth[1]);
+          roomh = RNG$1.getUniformInt(roomHeight[0], roomHeight[1]);
+
+          if (j > 0) {
+            otherRoom = this.rooms[i][j - 1];
+
+            while (sy - (otherRoom["y"] + otherRoom["height"]) < 3) {
+              sy++;
+            }
+          }
+
+          if (i > 0) {
+            otherRoom = this.rooms[i - 1][j];
+
+            while (sx - (otherRoom["x"] + otherRoom["width"]) < 3) {
+              sx++;
+            }
+          }
+
+          var sxOffset = Math.round(RNG$1.getUniformInt(0, cwp - roomw) / 2);
+          var syOffset = Math.round(RNG$1.getUniformInt(0, chp - roomh) / 2);
+
+          while (sx + sxOffset + roomw >= w) {
+            if (sxOffset) {
+              sxOffset--;
+            } else {
+              roomw--;
+            }
+          }
+
+          while (sy + syOffset + roomh >= h) {
+            if (syOffset) {
+              syOffset--;
+            } else {
+              roomh--;
+            }
+          }
+
+          sx = sx + sxOffset;
+          sy = sy + syOffset;
+          this.rooms[i][j]["x"] = sx;
+          this.rooms[i][j]["y"] = sy;
+          this.rooms[i][j]["width"] = roomw;
+          this.rooms[i][j]["height"] = roomh;
+
+          for (var ii = sx; ii < sx + roomw; ii++) {
+            for (var jj = sy; jj < sy + roomh; jj++) {
+              this.map[ii][jj] = 0;
+            }
+          }
+        }
+      }
+    };
+
+    _proto31._getWallPosition = function _getWallPosition(aRoom, aDirection) {
+      var rx;
+      var ry;
+      var door;
+
+      if (aDirection == 1 || aDirection == 3) {
+        rx = RNG$1.getUniformInt(aRoom["x"] + 1, aRoom["x"] + aRoom["width"] - 2);
+
+        if (aDirection == 1) {
+          ry = aRoom["y"] - 2;
+          door = ry + 1;
+        } else {
+          ry = aRoom["y"] + aRoom["height"] + 1;
+          door = ry - 1;
+        }
+
+        this.map[rx][door] = 0; // i'm not setting a specific 'door' tile value right now, just empty space.
+      } else {
+        ry = RNG$1.getUniformInt(aRoom["y"] + 1, aRoom["y"] + aRoom["height"] - 2);
+
+        if (aDirection == 2) {
+          rx = aRoom["x"] + aRoom["width"] + 1;
+          door = rx - 1;
+        } else {
+          rx = aRoom["x"] - 2;
+          door = rx + 1;
+        }
+
+        this.map[door][ry] = 0; // i'm not setting a specific 'door' tile value right now, just empty space.
+      }
+
+      return [rx, ry];
+    };
+
+    _proto31._drawCorridor = function _drawCorridor(startPosition, endPosition) {
+      var xOffset = endPosition[0] - startPosition[0];
+      var yOffset = endPosition[1] - startPosition[1];
+      var xpos = startPosition[0];
+      var ypos = startPosition[1];
+      var tempDist;
+      var xDir;
+      var yDir;
+      var move; // 2 element array, element 0 is the direction, element 1 is the total value to move.
+
+      var moves = []; // a list of 2 element arrays
+
+      var xAbs = Math.abs(xOffset);
+      var yAbs = Math.abs(yOffset);
+      var percent = RNG$1.getUniform(); // used to split the move at different places along the long axis
+
+      var firstHalf = percent;
+      var secondHalf = 1 - percent;
+      xDir = xOffset > 0 ? 2 : 6;
+      yDir = yOffset > 0 ? 4 : 0;
+
+      if (xAbs < yAbs) {
+        // move firstHalf of the y offset
+        tempDist = Math.ceil(yAbs * firstHalf);
+        moves.push([yDir, tempDist]); // move all the x offset
+
+        moves.push([xDir, xAbs]); // move sendHalf of the  y offset
+
+        tempDist = Math.floor(yAbs * secondHalf);
+        moves.push([yDir, tempDist]);
+      } else {
+        //  move firstHalf of the x offset
+        tempDist = Math.ceil(xAbs * firstHalf);
+        moves.push([xDir, tempDist]); // move all the y offset
+
+        moves.push([yDir, yAbs]); // move secondHalf of the x offset.
+
+        tempDist = Math.floor(xAbs * secondHalf);
+        moves.push([xDir, tempDist]);
+      }
+
+      this.map[xpos][ypos] = 0;
+
+      while (moves.length > 0) {
+        move = moves.pop();
+
+        while (move[1] > 0) {
+          xpos += DIRS[8][move[0]][0];
+          ypos += DIRS[8][move[0]][1];
+          this.map[xpos][ypos] = 0;
+          move[1] = move[1] - 1;
+        }
+      }
+    };
+
+    _proto31._createCorridors = function _createCorridors() {
+      // Draw Corridors between connected rooms
+      var cw = this._options.cellWidth;
+      var ch = this._options.cellHeight;
+      var room;
+      var connection;
+      var otherRoom;
+      var wall;
+      var otherWall;
+
+      for (var i = 0; i < cw; i++) {
+        for (var j = 0; j < ch; j++) {
+          room = this.rooms[i][j];
+
+          for (var k = 0; k < room["connections"].length; k++) {
+            connection = room["connections"][k];
+            otherRoom = this.rooms[connection[0]][connection[1]]; // figure out what wall our corridor will start one.
+            // figure out what wall our corridor will end on.
+
+            if (otherRoom["cellx"] > room["cellx"]) {
+              wall = 2;
+              otherWall = 4;
+            } else if (otherRoom["cellx"] < room["cellx"]) {
+              wall = 4;
+              otherWall = 2;
+            } else if (otherRoom["celly"] > room["celly"]) {
+              wall = 3;
+              otherWall = 1;
+            } else {
+              wall = 1;
+              otherWall = 3;
+            }
+
+            this._drawCorridor(this._getWallPosition(room, wall), this._getWallPosition(otherRoom, otherWall));
+          }
+        }
+      }
+    };
+
+    return Rogue;
+  }(Map);
+
+  var index$2 = {
+    Arena: Arena,
+    Uniform: Uniform,
+    Cellular: Cellular,
+    Digger: Digger,
+    EllerMaze: EllerMaze,
+    DividedMaze: DividedMaze,
+    IceyMaze: IceyMaze,
+    Rogue: Rogue
+  };
+  /**
+   * Base noise generator
+   */
+
+  var Noise = function Noise() {};
+
+  var F2 = 0.5 * (Math.sqrt(3) - 1);
+  var G2 = (3 - Math.sqrt(3)) / 6;
+  /**
+   * A simple 2d implementation of simplex noise by Ondrej Zara
+   *
+   * Based on a speed-improved simplex noise algorithm for 2D, 3D and 4D in Java.
+   * Which is based on example code by Stefan Gustavson (stegu@itn.liu.se).
+   * With Optimisations by Peter Eastman (peastman@drizzle.stanford.edu).
+   * Better rank ordering method by Stefan Gustavson in 2012.
+   */
+
+  var Simplex =
+  /*#__PURE__*/
+  function (_Noise) {
+    _inheritsLoose(Simplex, _Noise);
+
+    /**
+     * @param gradients Random gradients
+     */
+    function Simplex(gradients) {
+      var _this19;
+
+      if (gradients === void 0) {
+        gradients = 256;
+      }
+
+      _this19 = _Noise.call(this) || this;
+      _this19._gradients = [[0, -1], [1, -1], [1, 0], [1, 1], [0, 1], [-1, 1], [-1, 0], [-1, -1]];
+      var permutations = [];
+
+      for (var i = 0; i < gradients; i++) {
+        permutations.push(i);
+      }
+
+      permutations = RNG$1.shuffle(permutations);
+      _this19._perms = [];
+      _this19._indexes = [];
+
+      for (var _i12 = 0; _i12 < 2 * gradients; _i12++) {
+        _this19._perms.push(permutations[_i12 % gradients]);
+
+        _this19._indexes.push(_this19._perms[_i12] % _this19._gradients.length);
+      }
+
+      return _this19;
+    }
+
+    var _proto32 = Simplex.prototype;
+
+    _proto32.get = function get(xin, yin) {
+      var perms = this._perms;
+      var indexes = this._indexes;
+      var count = perms.length / 2;
+      var n0 = 0,
+          n1 = 0,
+          n2 = 0,
+          gi; // Noise contributions from the three corners
+      // Skew the input space to determine which simplex cell we're in
+
+      var s = (xin + yin) * F2; // Hairy factor for 2D
+
+      var i = Math.floor(xin + s);
+      var j = Math.floor(yin + s);
+      var t = (i + j) * G2;
+      var X0 = i - t; // Unskew the cell origin back to (x,y) space
+
+      var Y0 = j - t;
+      var x0 = xin - X0; // The x,y distances from the cell origin
+
+      var y0 = yin - Y0; // For the 2D case, the simplex shape is an equilateral triangle.
+      // Determine which simplex we are in.
+
+      var i1, j1; // Offsets for second (middle) corner of simplex in (i,j) coords
+
+      if (x0 > y0) {
+        i1 = 1;
+        j1 = 0;
+      } else {
+        // lower triangle, XY order: (0,0)->(1,0)->(1,1)
+        i1 = 0;
+        j1 = 1;
+      } // upper triangle, YX order: (0,0)->(0,1)->(1,1)
+      // A step of (1,0) in (i,j) means a step of (1-c,-c) in (x,y), and
+      // a step of (0,1) in (i,j) means a step of (-c,1-c) in (x,y), where
+      // c = (3-sqrt(3))/6
+
+
+      var x1 = x0 - i1 + G2; // Offsets for middle corner in (x,y) unskewed coords
+
+      var y1 = y0 - j1 + G2;
+      var x2 = x0 - 1 + 2 * G2; // Offsets for last corner in (x,y) unskewed coords
+
+      var y2 = y0 - 1 + 2 * G2; // Work out the hashed gradient indices of the three simplex corners
+
+      var ii = mod(i, count);
+      var jj = mod(j, count); // Calculate the contribution from the three corners
+
+      var t0 = 0.5 - x0 * x0 - y0 * y0;
+
+      if (t0 >= 0) {
+        t0 *= t0;
+        gi = indexes[ii + perms[jj]];
+        var grad = this._gradients[gi];
+        n0 = t0 * t0 * (grad[0] * x0 + grad[1] * y0);
+      }
+
+      var t1 = 0.5 - x1 * x1 - y1 * y1;
+
+      if (t1 >= 0) {
+        t1 *= t1;
+        gi = indexes[ii + i1 + perms[jj + j1]];
+        var _grad = this._gradients[gi];
+        n1 = t1 * t1 * (_grad[0] * x1 + _grad[1] * y1);
+      }
+
+      var t2 = 0.5 - x2 * x2 - y2 * y2;
+
+      if (t2 >= 0) {
+        t2 *= t2;
+        gi = indexes[ii + 1 + perms[jj + 1]];
+        var _grad2 = this._gradients[gi];
+        n2 = t2 * t2 * (_grad2[0] * x2 + _grad2[1] * y2);
+      } // Add contributions from each corner to get the final noise value.
+      // The result is scaled to return values in the interval [-1,1].
+
+
+      return 70 * (n0 + n1 + n2);
+    };
+
+    return Simplex;
+  }(Noise);
+
+  var index$3 = {
+    Simplex: Simplex
+  };
+  /**
+   * @class Abstract pathfinder
+   * @param {int} toX Target X coord
+   * @param {int} toY Target Y coord
+   * @param {function} passableCallback Callback to determine map passability
+   * @param {object} [options]
+   * @param {int} [options.topology=8]
+   */
+
+  var Path =
+  /*#__PURE__*/
+  function () {
+    function Path(toX, toY, passableCallback, options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._toX = toX;
+      this._toY = toY;
+      this._passableCallback = passableCallback;
+      this._options = Object.assign({
+        topology: 8
+      }, options);
+      this._dirs = DIRS[this._options.topology];
+
+      if (this._options.topology == 8) {
+        /* reorder dirs for more aesthetic result (vertical/horizontal first) */
+        this._dirs = [this._dirs[0], this._dirs[2], this._dirs[4], this._dirs[6], this._dirs[1], this._dirs[3], this._dirs[5], this._dirs[7]];
+      }
+    }
+
+    var _proto33 = Path.prototype;
+
+    _proto33._getNeighbors = function _getNeighbors(cx, cy) {
+      var result = [];
+
+      for (var i = 0; i < this._dirs.length; i++) {
+        var dir = this._dirs[i];
+        var x = cx + dir[0];
+        var y = cy + dir[1];
+
+        if (!this._passableCallback(x, y)) {
+          continue;
+        }
+
+        result.push([x, y]);
+      }
+
+      return result;
+    };
+
+    return Path;
+  }();
+  /**
+   * @class Simplified Dijkstra's algorithm: all edges have a value of 1
+   * @augments ROT.Path
+   * @see ROT.Path
+   */
+
+
+  var Dijkstra =
+  /*#__PURE__*/
+  function (_Path) {
+    _inheritsLoose(Dijkstra, _Path);
+
+    function Dijkstra(toX, toY, passableCallback, options) {
+      var _this20;
+
+      _this20 = _Path.call(this, toX, toY, passableCallback, options) || this;
+      _this20._computed = {};
+      _this20._todo = [];
+
+      _this20._add(toX, toY, null);
+
+      return _this20;
+    }
+    /**
+     * Compute a path from a given point
+     * @see ROT.Path#compute
+     */
+
+
+    var _proto34 = Dijkstra.prototype;
+
+    _proto34.compute = function compute(fromX, fromY, callback) {
+      var key = fromX + "," + fromY;
+
+      if (!(key in this._computed)) {
+        this._compute(fromX, fromY);
+      }
+
+      if (!(key in this._computed)) {
+        return;
+      }
+
+      var item = this._computed[key];
+
+      while (item) {
+        callback(item.x, item.y);
+        item = item.prev;
+      }
+    };
+    /**
+     * Compute a non-cached value
+     */
+
+
+    _proto34._compute = function _compute(fromX, fromY) {
+      while (this._todo.length) {
+        var item = this._todo.shift();
+
+        if (item.x == fromX && item.y == fromY) {
+          return;
+        }
+
+        var neighbors = this._getNeighbors(item.x, item.y);
+
+        for (var i = 0; i < neighbors.length; i++) {
+          var neighbor = neighbors[i];
+          var x = neighbor[0];
+          var y = neighbor[1];
+          var id = x + "," + y;
+
+          if (id in this._computed) {
+            continue;
+          }
+          /* already done */
+
+
+          this._add(x, y, item);
+        }
+      }
+    };
+
+    _proto34._add = function _add(x, y, prev) {
+      var obj = {
+        x: x,
+        y: y,
+        prev: prev
+      };
+      this._computed[x + "," + y] = obj;
+
+      this._todo.push(obj);
+    };
+
+    return Dijkstra;
+  }(Path);
+  /**
+   * @class Simplified A* algorithm: all edges have a value of 1
+   * @augments ROT.Path
+   * @see ROT.Path
+   */
+
+
+  var AStar =
+  /*#__PURE__*/
+  function (_Path2) {
+    _inheritsLoose(AStar, _Path2);
+
+    function AStar(toX, toY, passableCallback, options) {
+      var _this21;
+
+      if (options === void 0) {
+        options = {};
+      }
+
+      _this21 = _Path2.call(this, toX, toY, passableCallback, options) || this;
+      _this21._todo = [];
+      _this21._done = {};
+      return _this21;
+    }
+    /**
+     * Compute a path from a given point
+     * @see ROT.Path#compute
+     */
+
+
+    var _proto35 = AStar.prototype;
+
+    _proto35.compute = function compute(fromX, fromY, callback) {
+      this._todo = [];
+      this._done = {};
+      this._fromX = fromX;
+      this._fromY = fromY;
+
+      this._add(this._toX, this._toY, null);
+
+      while (this._todo.length) {
+        var _item = this._todo.shift();
+
+        var id = _item.x + "," + _item.y;
+
+        if (id in this._done) {
+          continue;
+        }
+
+        this._done[id] = _item;
+
+        if (_item.x == fromX && _item.y == fromY) {
+          break;
+        }
+
+        var neighbors = this._getNeighbors(_item.x, _item.y);
+
+        for (var i = 0; i < neighbors.length; i++) {
+          var neighbor = neighbors[i];
+          var x = neighbor[0];
+          var y = neighbor[1];
+
+          var _id3 = x + "," + y;
+
+          if (_id3 in this._done) {
+            continue;
+          }
+
+          this._add(x, y, _item);
+        }
+      }
+
+      var item = this._done[fromX + "," + fromY];
+
+      if (!item) {
+        return;
+      }
+
+      while (item) {
+        callback(item.x, item.y);
+        item = item.prev;
+      }
+    };
+
+    _proto35._add = function _add(x, y, prev) {
+      var h = this._distance(x, y);
+
+      var obj = {
+        x: x,
+        y: y,
+        prev: prev,
+        g: prev ? prev.g + 1 : 0,
+        h: h
+      };
+      /* insert into priority queue */
+
+      var f = obj.g + obj.h;
+
+      for (var i = 0; i < this._todo.length; i++) {
+        var item = this._todo[i];
+        var itemF = item.g + item.h;
+
+        if (f < itemF || f == itemF && h < item.h) {
+          this._todo.splice(i, 0, obj);
+
+          return;
+        }
+      }
+
+      this._todo.push(obj);
+    };
+
+    _proto35._distance = function _distance(x, y) {
+      switch (this._options.topology) {
+        case 4:
+          return Math.abs(x - this._fromX) + Math.abs(y - this._fromY);
+          break;
+
+        case 6:
+          var dx = Math.abs(x - this._fromX);
+          var dy = Math.abs(y - this._fromY);
+          return dy + Math.max(0, (dx - dy) / 2);
+          break;
+
+        case 8:
+          return Math.max(Math.abs(x - this._fromX), Math.abs(y - this._fromY));
+          break;
+      }
+    };
+
+    return AStar;
+  }(Path);
+
+  var index$4 = {
+    Dijkstra: Dijkstra,
+    AStar: AStar
+  };
+  /**
+   * @class Asynchronous main loop
+   * @param {ROT.Scheduler} scheduler
+   */
+
+  var Engine =
+  /*#__PURE__*/
+  function () {
+    function Engine(scheduler) {
+      this._scheduler = scheduler;
+      this._lock = 1;
+    }
+    /**
+     * Start the main loop. When this call returns, the loop is locked.
+     */
+
+
+    var _proto36 = Engine.prototype;
+
+    _proto36.start = function start() {
+      return this.unlock();
+    };
+    /**
+     * Interrupt the engine by an asynchronous action
+     */
+
+
+    _proto36.lock = function lock() {
+      this._lock++;
+      return this;
+    };
+    /**
+     * Resume execution (paused by a previous lock)
+     */
+
+
+    _proto36.unlock = function unlock() {
+      if (!this._lock) {
+        throw new Error("Cannot unlock unlocked engine");
+      }
+
+      this._lock--;
+
+      while (!this._lock) {
+        var actor = this._scheduler.next();
+
+        if (!actor) {
+          return this.lock();
+        }
+        /* no actors */
+
+
+        var result = actor.act();
+
+        if (result && result.then) {
+          /* actor returned a "thenable", looks like a Promise */
+          this.lock();
+          result.then(this.unlock.bind(this));
+        }
+      }
+
+      return this;
+    };
+
+    return Engine;
+  }();
+  /**
+   * Lighting computation, based on a traditional FOV for multiple light sources and multiple passes.
+   */
+
+
+  var Lighting =
+  /*#__PURE__*/
+  function () {
+    function Lighting(reflectivityCallback, options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._reflectivityCallback = reflectivityCallback;
+      this._options = {};
+      options = Object.assign({
+        passes: 1,
+        emissionThreshold: 100,
+        range: 10
+      }, options);
+      this._lights = {};
+      this._reflectivityCache = {};
+      this._fovCache = {};
+      this.setOptions(options);
+    }
+    /**
+     * Adjust options at runtime
+     */
+
+
+    var _proto37 = Lighting.prototype;
+
+    _proto37.setOptions = function setOptions(options) {
+      Object.assign(this._options, options);
+
+      if (options && options.range) {
+        this.reset();
+      }
+
+      return this;
+    };
+    /**
+     * Set the used Field-Of-View algo
+     */
+
+
+    _proto37.setFOV = function setFOV(fov) {
+      this._fov = fov;
+      this._fovCache = {};
+      return this;
+    };
+    /**
+     * Set (or remove) a light source
+     */
+
+
+    _proto37.setLight = function setLight(x, y, color) {
+      var key = x + "," + y;
+
+      if (color) {
+        this._lights[key] = typeof color == "string" ? fromString(color) : color;
+      } else {
+        delete this._lights[key];
+      }
+
+      return this;
+    };
+    /**
+     * Remove all light sources
+     */
+
+
+    _proto37.clearLights = function clearLights() {
+      this._lights = {};
+    };
+    /**
+     * Reset the pre-computed topology values. Call whenever the underlying map changes its light-passability.
+     */
+
+
+    _proto37.reset = function reset() {
+      this._reflectivityCache = {};
+      this._fovCache = {};
+      return this;
+    };
+    /**
+     * Compute the lighting
+     */
+
+
+    _proto37.compute = function compute(lightingCallback) {
+      var doneCells = {};
+      var emittingCells = {};
+      var litCells = {};
+
+      for (var key in this._lights) {
+        /* prepare emitters for first pass */
+        var light = this._lights[key];
+        emittingCells[key] = [0, 0, 0];
+        add_(emittingCells[key], light);
+      }
+
+      for (var i = 0; i < this._options.passes; i++) {
+        /* main loop */
+        this._emitLight(emittingCells, litCells, doneCells);
+
+        if (i + 1 == this._options.passes) {
+          continue;
+        }
+        /* not for the last pass */
+
+
+        emittingCells = this._computeEmitters(litCells, doneCells);
+      }
+
+      for (var litKey in litCells) {
+        /* let the user know what and how is lit */
+        var parts = litKey.split(",");
+        var x = parseInt(parts[0]);
+        var y = parseInt(parts[1]);
+        lightingCallback(x, y, litCells[litKey]);
+      }
+
+      return this;
+    };
+    /**
+     * Compute one iteration from all emitting cells
+     * @param emittingCells These emit light
+     * @param litCells Add projected light to these
+     * @param doneCells These already emitted, forbid them from further calculations
+     */
+
+
+    _proto37._emitLight = function _emitLight(emittingCells, litCells, doneCells) {
+      for (var key in emittingCells) {
+        var parts = key.split(",");
+        var x = parseInt(parts[0]);
+        var y = parseInt(parts[1]);
+
+        this._emitLightFromCell(x, y, emittingCells[key], litCells);
+
+        doneCells[key] = 1;
+      }
+
+      return this;
+    };
+    /**
+     * Prepare a list of emitters for next pass
+     */
+
+
+    _proto37._computeEmitters = function _computeEmitters(litCells, doneCells) {
+      var result = {};
+
+      for (var key in litCells) {
+        if (key in doneCells) {
+          continue;
+        }
+        /* already emitted */
+
+
+        var _color = litCells[key];
+        var reflectivity = void 0;
+
+        if (key in this._reflectivityCache) {
+          reflectivity = this._reflectivityCache[key];
+        } else {
+          var parts = key.split(",");
+          var x = parseInt(parts[0]);
+          var y = parseInt(parts[1]);
+          reflectivity = this._reflectivityCallback(x, y);
+          this._reflectivityCache[key] = reflectivity;
+        }
+
+        if (reflectivity == 0) {
+          continue;
+        }
+        /* will not reflect at all */
+
+        /* compute emission color */
+
+
+        var emission = [0, 0, 0];
+        var intensity = 0;
+
+        for (var i = 0; i < 3; i++) {
+          var part = Math.round(_color[i] * reflectivity);
+          emission[i] = part;
+          intensity += part;
+        }
+
+        if (intensity > this._options.emissionThreshold) {
+          result[key] = emission;
+        }
+      }
+
+      return result;
+    };
+    /**
+     * Compute one iteration from one cell
+     */
+
+
+    _proto37._emitLightFromCell = function _emitLightFromCell(x, y, color, litCells) {
+      var key = x + "," + y;
+      var fov;
+
+      if (key in this._fovCache) {
+        fov = this._fovCache[key];
+      } else {
+        fov = this._updateFOV(x, y);
+      }
+
+      for (var fovKey in fov) {
+        var formFactor = fov[fovKey];
+        var result = void 0;
+
+        if (fovKey in litCells) {
+          /* already lit */
+          result = litCells[fovKey];
+        } else {
+          /* newly lit */
+          result = [0, 0, 0];
+          litCells[fovKey] = result;
+        }
+
+        for (var i = 0; i < 3; i++) {
+          result[i] += Math.round(color[i] * formFactor);
+        }
+        /* add light color */
+
+      }
+
+      return this;
+    };
+    /**
+     * Compute FOV ("form factor") for a potential light source at [x,y]
+     */
+
+
+    _proto37._updateFOV = function _updateFOV(x, y) {
+      var key1 = x + "," + y;
+      var cache = {};
+      this._fovCache[key1] = cache;
+      var range = this._options.range;
+
+      function cb(x, y, r, vis) {
+        var key2 = x + "," + y;
+        var formFactor = vis * (1 - r / range);
+
+        if (formFactor == 0) {
+          return;
+        }
+
+        cache[key2] = formFactor;
+      }
+
+      this._fov.compute(x, y, range, cb.bind(this));
+
+      return cache;
+    };
+
+    return Lighting;
+  }();
+
+  var Util = util;
+  var Color = color;
+  var Text = text;
+  exports.Util = Util;
+  exports.Color = Color;
+  exports.Text = Text;
+  exports.RNG = RNG$1;
+  exports.Display = Display;
+  exports.StringGenerator = StringGenerator;
+  exports.EventQueue = EventQueue;
+  exports.Scheduler = index;
+  exports.FOV = index$1;
+  exports.Map = index$2;
+  exports.Noise = index$3;
+  exports.Path = index$4;
+  exports.Engine = Engine;
+  exports.Lighting = Lighting;
+  exports.DEFAULT_WIDTH = DEFAULT_WIDTH;
+  exports.DEFAULT_HEIGHT = DEFAULT_HEIGHT;
+  exports.DIRS = DIRS;
+  exports.KEYS = KEYS;
+  Object.defineProperty(exports, '__esModule', {
+    value: true
+  });
+});
+
diff --git a/html/js/rot.min.js b/html/js/rot.min.js
new file mode 100644
index 0000000..c8d1f38
--- /dev/null
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+this._options.bg&&(b=!0);this._backend.draw(a,b)};return d}();G.Rect=F;G.Hex=O;G.Tile=B;G.TileGL=x;G.Term=u;O=function(){function d(a){this._options={words:!1,order:3,prior:.001};Object.assign(this._options,a);this._suffix=this._boundary=String.fromCharCode(0);this._prefix=[];for(a=0;a<this._options.order;a++)this._prefix.push(this._boundary);this._priorValues={};this._priorValues[this._boundary]=this._options.prior;this._data={}}var c=d.prototype;c.clear=function(){this._data={};this._priorValues=
+{}};c.generate=function(){for(var a=[this._sample(this._prefix)];a[a.length-1]!=this._boundary;)a.push(this._sample(a));return this._join(a.slice(0,-1))};c.observe=function(a){a=this._split(a);for(var b=0;b<a.length;b++)this._priorValues[a[b]]=this._options.prior;a=this._prefix.concat(a).concat(this._suffix);for(b=this._options.order;b<a.length;b++)for(var e=a.slice(b-this._options.order,b),f=a[b],m=0;m<e.length;m++){var k=e.slice(m);this._observeEvent(k,f)}};c.getStats=function(){var a=[],b=Object.keys(this._priorValues).length;
+b--;a.push("distinct samples: "+b);b=Object.keys(this._data).length;var e=0,f;for(f in this._data)e+=Object.keys(this._data[f]).length;a.push("dictionary size (contexts): "+b);a.push("dictionary size (events): "+e);return a.join(", ")};c._split=function(a){return a.split(this._options.words?/\s+/:"")};c._join=function(a){return a.join(this._options.words?" ":"")};c._observeEvent=function(a,b){a=this._join(a);a in this._data||(this._data[a]={});a=this._data[a];b in a||(a[b]=0);a[b]++};c._sample=function(a){a=
+this._backoff(a);a=this._join(a);a=this._data[a];var b={};if(this._options.prior){for(var e in this._priorValues)b[e]=this._priorValues[e];for(var f in a)b[f]+=a[f]}else b=a;return q.getWeightedValue(b)};c._backoff=function(a){for(a.length>this._options.order?a=a.slice(-this._options.order):a.length<this._options.order&&(a=this._prefix.slice(0,this._options.order-a.length).concat(a));!(this._join(a)in this._data)&&0<a.length;)a=a.slice(1);return a};return d}();var ea=function(){function d(){this._time=
+0;this._events=[];this._eventTimes=[]}var c=d.prototype;c.getTime=function(){return this._time};c.clear=function(){this._events=[];this._eventTimes=[];return this};c.add=function(a,b){for(var e=this._events.length,f=0;f<this._eventTimes.length;f++)if(this._eventTimes[f]>b){e=f;break}this._events.splice(e,0,a);this._eventTimes.splice(e,0,b)};c.get=function(){if(!this._events.length)return null;var a=this._eventTimes.splice(0,1)[0];if(0<a){this._time+=a;for(var b=0;b<this._eventTimes.length;b++)this._eventTimes[b]-=
+a}return this._events.splice(0,1)[0]};c.getEventTime=function(a){a=this._events.indexOf(a);if(-1!=a)return this._eventTimes[a]};c.remove=function(a){a=this._events.indexOf(a);if(-1==a)return!1;this._remove(a);return!0};c._remove=function(a){this._events.splice(a,1);this._eventTimes.splice(a,1)};return d}();x=function(){function d(){this._queue=new ea;this._repeat=[];this._current=null}var c=d.prototype;c.getTime=function(){return this._queue.getTime()};c.add=function(a,b){b&&this._repeat.push(a);
+return this};c.getTimeOf=function(a){return this._queue.getEventTime(a)};c.clear=function(){this._queue.clear();this._repeat=[];this._current=null;return this};c.remove=function(a){var b=this._queue.remove(a),e=this._repeat.indexOf(a);-1!=e&&this._repeat.splice(e,1);this._current==a&&(this._current=null);return b};c.next=function(){return this._current=this._queue.get()};return d}();F=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;a.add=function(b,
+e){this._queue.add(b,0);return d.prototype.add.call(this,b,e)};a.next=function(){null!==this._current&&-1!=this._repeat.indexOf(this._current)&&this._queue.add(this._current,0);return d.prototype.next.call(this)};return c}(x);B=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;a.add=function(b,e,a){this._queue.add(b,void 0!==a?a:1/b.getSpeed());return d.prototype.add.call(this,b,e)};a.next=function(){this._current&&-1!=this._repeat.indexOf(this._current)&&
+this._queue.add(this._current,1/this._current.getSpeed());return d.prototype.next.call(this)};return c}(x);x=function(d){function c(){var b=d.call(this)||this;b._defaultDuration=1;b._duration=b._defaultDuration;return b}_inheritsLoose(c,d);var a=c.prototype;a.add=function(b,e,a){this._queue.add(b,a||this._defaultDuration);return d.prototype.add.call(this,b,e)};a.clear=function(){this._duration=this._defaultDuration;return d.prototype.clear.call(this)};a.remove=function(b){b==this._current&&(this._duration=
+this._defaultDuration);return d.prototype.remove.call(this,b)};a.next=function(){null!==this._current&&-1!=this._repeat.indexOf(this._current)&&(this._queue.add(this._current,this._duration||this._defaultDuration),this._duration=this._defaultDuration);return d.prototype.next.call(this)};a.setDuration=function(b){this._current&&(this._duration=b);return this};return c}(x);F={Simple:F,Speed:B,Action:x};u=function(){function d(c,a){void 0===a&&(a={});this._lightPasses=c;this._options=Object.assign({topology:8},
+a)}d.prototype._getCircle=function(c,a,b){var e=[];switch(this._options.topology){case 4:var f=1;var m=[0,1];var k=[v[8][7],v[8][1],v[8][3],v[8][5]];break;case 6:k=v[6];f=1;m=[-1,1];break;case 8:k=v[4];f=2;m=[-1,1];break;default:throw Error("Incorrect topology for FOV computation");}c+=m[0]*b;a+=m[1]*b;for(m=0;m<k.length;m++)for(var h=0;h<b*f;h++)e.push([c,a]),c+=k[m][0],a+=k[m][1];return e};return d}();B=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;
+a.compute=function(b,e,a,m){m(b,e,0,1);if(this._lightPasses(b,e))for(var f=[],c,d,l,g,z,y=1;y<=a;y++)for(var q=this._getCircle(b,e,y),p=360/q.length,r=0;r<q.length;r++)if(l=q[r][0],g=q[r][1],c=p*(r-.5),d=c+p,z=!this._lightPasses(l,g),this._visibleCoords(Math.floor(c),Math.ceil(d),z,f)&&m(l,g,y,1),2==f.length&&0==f[0]&&360==f[1])return};a._visibleCoords=function(b,e,a,m){if(0>b)return e=this._visibleCoords(0,e,a,m),b=this._visibleCoords(360+b,360,a,m),e||b;for(var f=0;f<m.length&&m[f]<b;)f++;if(f==
+m.length)return a&&m.push(b,e),!0;var c=0;if(f%2){for(;f<m.length&&m[f]<e;)f++,c++;if(0==c)return!1;a&&(c%2?m.splice(f-c,c,e):m.splice(f-c,c))}else{for(;f<m.length&&m[f]<e;)f++,c++;if(b==m[f-c]&&1==c)return!1;a&&(c%2?m.splice(f-c,c,b):m.splice(f-c,c,b,e))}return!0};return c}(u);x=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;a.compute=function(b,e,a,c){c(b,e,0,1);if(this._lightPasses(b,e))for(var f=[],m,d,l,g,z,q=1;q<=a;q++)for(var p=this._getCircle(b,
+e,q),r=p.length,t=0;t<r;t++)if(m=p[t][0],d=p[t][1],g=[t?2*t-1:2*r-1,2*r],z=[2*t+1,2*r],l=!this._lightPasses(m,d),(l=this._checkVisibility(g,z,l,f))&&c(m,d,q,l),2==f.length&&0==f[0][0]&&f[1][0]==f[1][1])return};a._checkVisibility=function(b,e,a,c){if(b[0]>e[0])return b=this._checkVisibility(b,[b[1],b[1]],a,c),e=this._checkVisibility([0,1],e,a,c),(b+e)/2;for(var f=0,m=!1;f<c.length;){var d=c[f];d=d[0]*b[1]-b[0]*d[1];if(0<=d){0!=d||f%2||(m=!0);break}f++}d=c.length;for(var l=!1;d--;){var g=c[d];g=e[0]*
+g[1]-g[0]*e[1];if(0<=g){0==g&&d%2&&(l=!0);break}}g=!0;f==d&&(m||l)?g=!1:m&&l&&f+1==d&&d%2?g=!1:f>d&&f%2&&(g=!1);if(!g)return 0;m=d-f+1;if(m%2)f%2?(d=c[f],d=(e[0]*d[1]-d[0]*e[1])/(d[1]*e[1]),a&&c.splice(f,m,e)):(d=c[d],d=(d[0]*b[1]-b[0]*d[1])/(b[1]*d[1]),a&&c.splice(f,m,b));else if(f%2)l=c[f],d=c[d],d=(d[0]*l[1]-l[0]*d[1])/(l[1]*d[1]),a&&c.splice(f,m);else return a&&c.splice(f,m,b,e),1;return d/((e[0]*b[1]-b[0]*e[1])/(b[1]*e[1]))};return c}(u);var C=[[-1,0,0,1],[0,-1,1,0],[0,-1,-1,0],[-1,0,0,-1],[1,
+0,0,-1],[0,1,-1,0],[0,1,1,0],[1,0,0,1]];u=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;a.compute=function(b,e,a,c){c(b,e,0,1);for(var f=0;f<C.length;f++)this._renderOctant(b,e,C[f],a,c)};a.compute180=function(b,e,a,c,k){k(b,e,0,1);var f=(c-1+8)%8,m=(c+1+8)%8;this._renderOctant(b,e,C[(c-2+8)%8],a,k);this._renderOctant(b,e,C[f],a,k);this._renderOctant(b,e,C[c],a,k);this._renderOctant(b,e,C[m],a,k)};a.compute90=function(b,e,a,c,k){k(b,e,0,1);var f=
+(c-1+8)%8;this._renderOctant(b,e,C[c],a,k);this._renderOctant(b,e,C[f],a,k)};a._renderOctant=function(b,e,a,c,k){this._castVisibility(b,e,1,1,0,c+1,a[0],a[1],a[2],a[3],k)};a._castVisibility=function(b,e,a,c,k,d,n,l,g,q,p){if(!(c<k))for(;a<=d;a++){for(var f=-a-1,m=-a,h=!1,W=0;0>=f;){f+=1;var z=b+f*n+m*l,y=e+f*g+m*q,r=(f-.5)/(m+.5),t=(f+.5)/(m-.5);if(!(t>c)){if(r<k)break;f*f+m*m<d*d&&p(z,y,a,1);h?this._lightPasses(z,y)?(h=!1,c=W):W=t:!this._lightPasses(z,y)&&a<d&&(h=!0,this._castVisibility(b,e,a+1,
+c,r,d,n,l,g,q,p),W=t)}}if(h)break}};return c}(u);B={DiscreteShadowcasting:B,PreciseShadowcasting:x,RecursiveShadowcasting:u};u=function(){function d(c,a){void 0===c&&(c=80);void 0===a&&(a=25);this._width=c;this._height=a}d.prototype._fillMap=function(c){for(var a=[],b=0;b<this._width;b++){a.push([]);for(var e=0;e<this._height;e++)a[b].push(c)}return a};return d}();x=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);c.prototype.create=function(a){for(var b=this._width-
+1,e=this._height-1,f=0;f<=b;f++)for(var c=0;c<=e;c++)a(f,c,f&&c&&f<b&&c<e?0:1);return this};return c}(u);var H=function(d){function c(b,e){b=d.call(this,b,e)||this;b._rooms=[];b._corridors=[];return b}_inheritsLoose(c,d);var a=c.prototype;a.getRooms=function(){return this._rooms};a.getCorridors=function(){return this._corridors};return c}(u),D=function(){},P=function(d){function c(b,e,a,c,k,h){var f=d.call(this)||this;f._x1=b;f._y1=e;f._x2=a;f._y2=c;f._doors={};void 0!==k&&void 0!==h&&f.addDoor(k,
+h);return f}_inheritsLoose(c,d);c.createRandomAt=function(b,e,a,c,k){var f=k.roomWidth[0],d=k.roomWidth[1],m=q.getUniformInt(f,d);f=k.roomHeight[0];d=k.roomHeight[1];k=q.getUniformInt(f,d);if(1==a)return a=e-Math.floor(q.getUniform()*k),new this(b+1,a,b+m,a+k-1,b,e);if(-1==a)return a=e-Math.floor(q.getUniform()*k),new this(b-m,a,b-1,a+k-1,b,e);if(1==c)return a=b-Math.floor(q.getUniform()*m),new this(a,e+1,a+m-1,e+k,b,e);if(-1==c)return a=b-Math.floor(q.getUniform()*m),new this(a,e-k,a+m-1,e-1,b,e);
+throw Error("dx or dy must be 1 or -1");};c.createRandomCenter=function(b,e,a){var f=a.roomWidth[0],c=a.roomWidth[1],d=q.getUniformInt(f,c);f=a.roomHeight[0];c=a.roomHeight[1];a=q.getUniformInt(f,c);b-=Math.floor(q.getUniform()*d);e-=Math.floor(q.getUniform()*a);return new this(b,e,b+d-1,e+a-1)};c.createRandom=function(b,a,f){var e=f.roomWidth[0],c=f.roomWidth[1],d=q.getUniformInt(e,c);e=f.roomHeight[0];c=f.roomHeight[1];f=q.getUniformInt(e,c);b=b-d-1;a=a-f-1;b=1+Math.floor(q.getUniform()*b);a=1+
+Math.floor(q.getUniform()*a);return new this(b,a,b+d-1,a+f-1)};var a=c.prototype;a.addDoor=function(b,a){this._doors[b+","+a]=1;return this};a.getDoors=function(b){for(var a in this._doors){var f=a.split(",");b(parseInt(f[0]),parseInt(f[1]))}return this};a.clearDoors=function(){this._doors={};return this};a.addDoors=function(b){for(var a=this._x1-1,f=this._x2+1,c=this._y1-1,d=this._y2+1,h=a;h<=f;h++)for(var n=c;n<=d;n++)if(h==a||h==f||n==c||n==d)b(h,n)||this.addDoor(h,n);return this};a.debug=function(){console.log("room",
+this._x1,this._y1,this._x2,this._y2)};a.isValid=function(b,a){for(var e=this._x1-1,c=this._x2+1,d=this._y1-1,h=this._y2+1,n=e;n<=c;n++)for(var l=d;l<=h;l++)if(n==e||n==c||l==d||l==h){if(!b(n,l))return!1}else if(!a(n,l))return!1;return!0};a.create=function(b){for(var a=this._x1-1,f=this._x2+1,c=this._y1-1,d=this._y2+1,h,n=a;n<=f;n++)for(var l=c;l<=d;l++)h=n+","+l in this._doors?2:n==a||n==f||l==c||l==d?1:0,b(n,l,h)};a.getCenter=function(){return[Math.round((this._x1+this._x2)/2),Math.round((this._y1+
+this._y2)/2)]};a.getLeft=function(){return this._x1};a.getRight=function(){return this._x2};a.getTop=function(){return this._y1};a.getBottom=function(){return this._y2};return c}(D),X=function(d){function c(b,a,f,c){var e=d.call(this)||this;e._startX=b;e._startY=a;e._endX=f;e._endY=c;e._endsWithAWall=!0;return e}_inheritsLoose(c,d);c.createRandomAt=function(b,a,f,c,d){d=q.getUniformInt(d.corridorLength[0],d.corridorLength[1]);return new this(b,a,b+f*d,a+c*d)};var a=c.prototype;a.debug=function(){console.log("corridor",
+this._startX,this._startY,this._endX,this._endY)};a.isValid=function(b,a){var e=this._startX,c=this._startY,d=this._endX-e,h=this._endY-c,n=1+Math.max(Math.abs(d),Math.abs(h));d&&(d/=Math.abs(d));h&&(h/=Math.abs(h));for(var l=h,g=-d,q=!0,p=0;p<n;p++){var r=e+p*d,t=c+p*h;a(r,t)||(q=!1);b(r+l,t+g)||(q=!1);b(r-l,t-g)||(q=!1);if(!q){n=p;this._endX=r-d;this._endY=t-h;break}}if(0==n||1==n&&b(this._endX+d,this._endY+h))return!1;a=!b(this._endX+d+l,this._endY+h+g);l=!b(this._endX+d-l,this._endY+h-g);this._endsWithAWall=
+b(this._endX+d,this._endY+h);return(a||l)&&this._endsWithAWall?!1:!0};a.create=function(b){var a=this._startX,f=this._startY,c=this._endX-a,d=this._endY-f,h=1+Math.max(Math.abs(c),Math.abs(d));c&&(c/=Math.abs(c));d&&(d/=Math.abs(d));for(var n=0;n<h;n++)b(a+n*c,f+n*d,0);return!0};a.createPriorityWalls=function(b){if(this._endsWithAWall){var a=this._endX-this._startX,f=this._endY-this._startY;a&&(a/=Math.abs(a));f&&(f/=Math.abs(f));var c=f,d=-a;b(this._endX+a,this._endY+f);b(this._endX+c,this._endY+
+d);b(this._endX-c,this._endY-d)}};return c}(D);D=function(d){function c(b,a,f){b=d.call(this,b,a)||this;b._options={roomWidth:[3,9],roomHeight:[3,5],roomDugPercentage:.1,timeLimit:1E3};Object.assign(b._options,f);b._map=[];b._dug=0;b._roomAttempts=20;b._corridorAttempts=20;b._connected=[];b._unconnected=[];b._digCallback=b._digCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._canBeDugCallback=b._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._isWallCallback=
+b._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));return b}_inheritsLoose(c,d);var a=c.prototype;a.create=function(b){for(var a=Date.now();;){if(Date.now()-a>this._options.timeLimit)return null;this._map=this._fillMap(1);this._dug=0;this._rooms=[];this._unconnected=[];this._generateRooms();if(!(2>this._rooms.length)&&this._generateCorridors())break}if(b)for(a=0;a<this._width;a++)for(var f=0;f<this._height;f++)b(a,f,this._map[a][f]);return this};a._generateRooms=function(){var b=
+this._width-2,a=this._height-2;do{var f=this._generateRoom();if(this._dug/(b*a)>this._options.roomDugPercentage)break}while(f)};a._generateRoom=function(){for(var b=0;b<this._roomAttempts;){b++;var a=P.createRandom(this._width,this._height,this._options);if(a.isValid(this._isWallCallback,this._canBeDugCallback))return a.create(this._digCallback),this._rooms.push(a),a}return null};a._generateCorridors=function(){for(var b=0;b<this._corridorAttempts;){b++;this._corridors=[];this._map=this._fillMap(1);
+for(var a=0;a<this._rooms.length;a++){var f=this._rooms[a];f.clearDoors();f.create(this._digCallback)}this._unconnected=q.shuffle(this._rooms.slice());this._connected=[];for(this._unconnected.length&&this._connected.push(this._unconnected.pop());;){a=q.getItem(this._connected);if(!a)break;a=this._closestRoom(this._unconnected,a);if(!a)break;f=this._closestRoom(this._connected,a);if(!f)break;if(!this._connectRooms(a,f))break;if(!this._unconnected.length)return!0}}return!1};a._closestRoom=function(b,
+a){var e=Infinity;a=a.getCenter();for(var c=null,d=0;d<b.length;d++){var h=b[d],n=h.getCenter(),l=n[0]-a[0];n=n[1]-a[1];l=l*l+n*n;l<e&&(e=l,c=h)}return c};a._connectRooms=function(b,a){var e=b.getCenter(),c=a.getCenter(),d=c[0]-e[0];e=c[1]-e[1];if(Math.abs(d)<Math.abs(e)){d=0<e?2:0;var h=(d+2)%4;var n=a.getLeft();var l=a.getRight();e=0}else d=0<d?1:3,h=(d+2)%4,n=a.getTop(),l=a.getBottom(),e=1;d=this._placeInWall(b,d);if(!d)return!1;if(d[e]>=n&&d[e]<=l){c=d.slice();n=0;switch(h){case 0:n=a.getTop()-
+1;break;case 1:n=a.getRight()+1;break;case 2:n=a.getBottom()+1;break;case 3:n=a.getLeft()-1}c[(e+1)%2]=n;this._digLine([d,c])}else if(d[e]<n-1||d[e]>l+1){c=d[e]-c[e];n=0;switch(h){case 0:case 1:n=0>c?3:1;break;case 2:case 3:n=0>c?1:3}c=this._placeInWall(a,(h+n)%4);if(!c)return!1;h=[0,0];h[e]=d[e];e=(e+1)%2;h[e]=c[e];this._digLine([d,h,c])}else{n=(e+1)%2;c=this._placeInWall(a,h);if(!c)return!1;h=Math.round((c[n]+d[n])/2);l=[0,0];var g=[0,0];l[e]=d[e];l[n]=h;g[e]=c[e];g[n]=h;this._digLine([d,l,g,c])}b.addDoor(d[0],
+d[1]);a.addDoor(c[0],c[1]);e=this._unconnected.indexOf(b);-1!=e&&(this._unconnected.splice(e,1),this._connected.push(b));e=this._unconnected.indexOf(a);-1!=e&&(this._unconnected.splice(e,1),this._connected.push(a));return!0};a._placeInWall=function(b,a){var e=[0,0],c=[0,0],d=0;switch(a){case 0:c=[1,0];e=[b.getLeft(),b.getTop()-1];d=b.getRight()-b.getLeft()+1;break;case 1:c=[0,1];e=[b.getRight()+1,b.getTop()];d=b.getBottom()-b.getTop()+1;break;case 2:c=[1,0];e=[b.getLeft(),b.getBottom()+1];d=b.getRight()-
+b.getLeft()+1;break;case 3:c=[0,1],e=[b.getLeft()-1,b.getTop()],d=b.getBottom()-b.getTop()+1}b=[];a=-2;for(var h=0;h<d;h++){var n=e[0]+h*c[0],l=e[1]+h*c[1];b.push(null);1==this._map[n][l]?a!=h-1&&(b[h]=[n,l]):(a=h)&&(b[h-1]=null)}for(e=b.length-1;0<=e;e--)b[e]||b.splice(e,1);return b.length?q.getItem(b):null};a._digLine=function(b){for(var a=1;a<b.length;a++){var f=b[a-1],c=b[a];f=new X(f[0],f[1],c[0],c[1]);f.create(this._digCallback);this._corridors.push(f)}};a._digCallback=function(b,a,f){this._map[b][a]=
+f;0==f&&this._dug++};a._isWallCallback=function(b,a){return 0>b||0>a||b>=this._width||a>=this._height?!1:1==this._map[b][a]};a._canBeDugCallback=function(b,a){return 1>b||1>a||b+1>=this._width||a+1>=this._height?!1:1==this._map[b][a]};return c}(H);var E=function(d){function c(b,a,f){void 0===f&&(f={});b=d.call(this,b,a)||this;b._options={born:[5,6,7,8],survive:[4,5,6,7,8],topology:8};b.setOptions(f);b._dirs=v[b._options.topology];b._map=b._fillMap(0);return b}_inheritsLoose(c,d);var a=c.prototype;
+a.randomize=function(b){for(var a=0;a<this._width;a++)for(var f=0;f<this._height;f++)this._map[a][f]=q.getUniform()<b?1:0;return this};a.setOptions=function(b){Object.assign(this._options,b)};a.set=function(b,a,f){this._map[b][a]=f};a.create=function(b){for(var a=this._fillMap(0),f=this._options.born,c=this._options.survive,d=0;d<this._height;d++){var h=1,n=0;6==this._options.topology&&(h=2,n=d%2);for(;n<this._width;n+=h){var l=this._map[n][d],g=this._getNeighbors(n,d);l&&-1!=c.indexOf(g)?a[n][d]=
+1:l||-1==f.indexOf(g)||(a[n][d]=1)}}this._map=a;b&&this._serviceCallback(b)};a._serviceCallback=function(b){for(var a=0;a<this._height;a++){var f=1,c=0;6==this._options.topology&&(f=2,c=a%2);for(;c<this._width;c+=f)b(c,a,this._map[c][a])}};a._getNeighbors=function(b,a){for(var e=0,c=0;c<this._dirs.length;c++){var d=this._dirs[c],h=b+d[0];d=a+d[1];0>h||h>=this._width||0>d||d>=this._height||(e+=1==this._map[h][d]?1:0)}return e};a.connect=function(b,a,f){a||(a=0);var e=[],c={},d=1,n=[0,0];6==this._options.topology&&
+(d=2,n=[0,1]);for(var l=0;l<this._height;l++)for(var g=n[l%2];g<this._width;g+=d)if(this._freeSpace(g,l,a)){var p=[g,l];c[this._pointKey(p)]=p;e.push([g,l])}d=e[q.getUniformInt(0,e.length-1)];n=this._pointKey(d);e={};e[n]=d;delete c[n];for(this._findConnected(e,c,[d],!1,a);0<Object.keys(c).length;){n=this._getFromTo(e,c);d=n[0];l=n[1];n={};n[this._pointKey(d)]=d;this._findConnected(n,c,[d],!0,a);(6==this._options.topology?this._tunnelToConnected6:this._tunnelToConnected).call(this,l,d,e,c,a,f);for(var r in n)d=
+n[r],this._map[d[0]][d[1]]=a,e[r]=d,delete c[r]}b&&this._serviceCallback(b)};a._getFromTo=function(b,a){for(var e=[0,0],c=[0,0],d,h=Object.keys(b),n=Object.keys(a),l=0;5>l&&!(h.length<n.length?(e=h,c=b[e[q.getUniformInt(0,e.length-1)]],e=this._getClosest(c,a)):(e=n,e=a[e[q.getUniformInt(0,e.length-1)]],c=this._getClosest(e,b)),d=(e[0]-c[0])*(e[0]-c[0])+(e[1]-c[1])*(e[1]-c[1]),64>d);l++);return[e,c]};a._getClosest=function(b,a){var e=null,c=null,d;for(d in a){var h=a[d],n=(h[0]-b[0])*(h[0]-b[0])+(h[1]-
+b[1])*(h[1]-b[1]);if(null==c||n<c)c=n,e=h}return e};a._findConnected=function(b,a,f,c,d){for(;0<f.length;){var e=f.splice(0,1)[0];e=6==this._options.topology?[[e[0]+2,e[1]],[e[0]+1,e[1]-1],[e[0]-1,e[1]-1],[e[0]-2,e[1]],[e[0]-1,e[1]+1],[e[0]+1,e[1]+1]]:[[e[0]+1,e[1]],[e[0]-1,e[1]],[e[0],e[1]+1],[e[0],e[1]-1]];for(var m=0;m<e.length;m++){var k=this._pointKey(e[m]);null==b[k]&&this._freeSpace(e[m][0],e[m][1],d)&&(b[k]=e[m],c||delete a[k],f.push(e[m]))}}};a._tunnelToConnected=function(b,a,f,c,d,h){if(a[0]<
+b[0]){var e=a;var m=b}else e=b,m=a;for(var k=e[0];k<=m[0];k++){this._map[k][e[1]]=d;var g=[k,e[1]],q=this._pointKey(g);f[q]=g;delete c[q]}h&&e[0]<m[0]&&h(e,[m[0],e[1]]);k=m[0];a[1]<b[1]?(e=a,m=b):(e=b,m=a);for(b=e[1];b<m[1];b++)this._map[k][b]=d,a=[k,b],g=this._pointKey(a),f[g]=a,delete c[g];h&&e[1]<m[1]&&h([m[0],e[1]],[m[0],m[1]])};a._tunnelToConnected6=function(b,a,c,d,k,h){if(a[0]<b[0]){var e=a;var f=b}else e=b,f=a;var m=e[0];for(e=e[1];m!=f[0]||e!=f[1];){var g=2;e<f[1]?(e++,g=1):e>f[1]&&(e--,
+g=1);m=m<f[0]?m+g:m>f[0]?m-g:f[1]%2?m-g:m+g;this._map[m][e]=k;g=[m,e];var q=this._pointKey(g);c[q]=g;delete d[q]}h&&h(a,b)};a._freeSpace=function(b,a,f){return 0<=b&&b<this._width&&0<=a&&a<this._height&&this._map[b][a]==f};a._pointKey=function(b){return b[0]+"."+b[1]};return c}(u),qa={room:P,corridor:X};H=function(d){function c(b,a,f){void 0===f&&(f={});b=d.call(this,b,a)||this;b._options=Object.assign({roomWidth:[3,9],roomHeight:[3,5],corridorLength:[3,10],dugPercentage:.2,timeLimit:1E3},f);b._features=
+{room:4,corridor:4};b._map=[];b._featureAttempts=20;b._walls={};b._dug=0;b._digCallback=b._digCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._canBeDugCallback=b._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._isWallCallback=b._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._priorityWallCallback=b._priorityWallCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));return b}_inheritsLoose(c,d);var a=c.prototype;a.create=
+function(b){this._rooms=[];this._corridors=[];this._map=this._fillMap(1);this._walls={};this._dug=0;var a=(this._width-2)*(this._height-2);this._firstRoom();var f=Date.now();do{var c=0;if(Date.now()-f>this._options.timeLimit)break;var d=this._findWall();if(!d)break;var h=d.split(",");d=parseInt(h[0]);h=parseInt(h[1]);var g=this._getDiggingDirection(d,h);if(g){var l=0;do if(l++,this._tryFeature(d,h,g[0],g[1])){this._removeSurroundingWalls(d,h);this._removeSurroundingWalls(d-g[0],h-g[1]);break}while(l<
+this._featureAttempts);for(var q in this._walls)1<this._walls[q]&&c++}}while(this._dug/a<this._options.dugPercentage||c);this._addDoors();if(b)for(a=0;a<this._width;a++)for(f=0;f<this._height;f++)b(a,f,this._map[a][f]);this._walls={};this._map=[];return this};a._digCallback=function(b,a,f){0==f||2==f?(this._map[b][a]=0,this._dug++):this._walls[b+","+a]=1};a._isWallCallback=function(b,a){return 0>b||0>a||b>=this._width||a>=this._height?!1:1==this._map[b][a]};a._canBeDugCallback=function(b,a){return 1>
+b||1>a||b+1>=this._width||a+1>=this._height?!1:1==this._map[b][a]};a._priorityWallCallback=function(b,a){this._walls[b+","+a]=2};a._firstRoom=function(){var b=P.createRandomCenter(Math.floor(this._width/2),Math.floor(this._height/2),this._options);this._rooms.push(b);b.create(this._digCallback)};a._findWall=function(){var b=[],a=[],f;for(f in this._walls)2==this._walls[f]?a.push(f):b.push(f);b=a.length?a:b;if(!b.length)return null;b=q.getItem(b.sort());delete this._walls[b];return b};a._tryFeature=
+function(b,a,f,c){var e=q.getWeightedValue(this._features);b=qa[e].createRandomAt(b,a,f,c,this._options);if(!b.isValid(this._isWallCallback,this._canBeDugCallback))return!1;b.create(this._digCallback);b instanceof P&&this._rooms.push(b);b instanceof X&&(b.createPriorityWalls(this._priorityWallCallback),this._corridors.push(b));return!0};a._removeSurroundingWalls=function(b,a){for(var e=v[4],c=0;c<e.length;c++){var d=e[c],h=b+d[0],g=a+d[1];delete this._walls[h+","+g];h=b+2*d[0];g=a+2*d[1];delete this._walls[h+
+","+g]}};a._getDiggingDirection=function(b,a){if(0>=b||0>=a||b>=this._width-1||a>=this._height-1)return null;for(var e=null,c=v[4],d=0;d<c.length;d++){var h=c[d];if(!this._map[b+h[0]][a+h[1]]){if(e)return null;e=h}}return e?[-e[0],-e[1]]:null};a._addDoors=function(){function b(b,e){return 1==a[b][e]}for(var a=this._map,c=0;c<this._rooms.length;c++){var d=this._rooms[c];d.clearDoors();d.addDoors(b)}};return c}(H);var ra=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,
+d);c.prototype.create=function(a){for(var b=this._fillMap(1),e=Math.ceil((this._width-2)/2),c=[],d=[],k=0;k<e;k++)c.push(k),d.push(k);c.push(e-1);for(k=1;k+3<this._height;k+=2)for(var h=0;h<e;h++){var g=2*h+1,l=k;b[g][l]=0;h!=c[h+1]&&.375<q.getUniform()&&(ca(h,c,d),b[g+1][l]=0);h!=c[h]&&.375<q.getUniform()?da(h,c,d):b[g][l+1]=0}for(h=0;h<e;h++)g=2*h+1,l=k,b[g][l]=0,h!=c[h+1]&&(h==c[h]||.375<q.getUniform())&&(ca(h,c,d),b[g+1][l]=0),da(h,c,d);for(e=0;e<this._width;e++)for(c=0;c<this._height;c++)a(e,
+c,b[e][c]);return this};return c}(u),sa=function(d){function c(){var b=d.apply(this,arguments)||this;b._stack=[];b._map=[];return b}_inheritsLoose(c,d);var a=c.prototype;a.create=function(b){var a=this._width,c=this._height;this._map=[];for(var d=0;d<a;d++){this._map.push([]);for(var k=0;k<c;k++)this._map[d].push(0==d||0==k||d+1==a||k+1==c?1:0)}this._stack=[[1,1,a-2,c-2]];this._process();for(d=0;d<a;d++)for(k=0;k<c;k++)b(d,k,this._map[d][k]);this._map=[];return this};a._process=function(){for(;this._stack.length;){var b=
+this._stack.shift();this._partitionRoom(b)}};a._partitionRoom=function(b){for(var a=[],c=[],d=b[0]+1;d<b[2];d++){var k=this._map[d][b[3]+1];!this._map[d][b[1]-1]||!k||d%2||a.push(d)}for(d=b[1]+1;d<b[3];d++)k=this._map[b[2]+1][d],!this._map[b[0]-1][d]||!k||d%2||c.push(d);if(a.length&&c.length){a=q.getItem(a);c=q.getItem(c);this._map[a][c]=1;d=[];k=[];d.push(k);for(var h=b[0];h<a;h++)this._map[h][c]=1,k.push([h,c]);k=[];d.push(k);for(h=a+1;h<=b[2];h++)this._map[h][c]=1,k.push([h,c]);k=[];d.push(k);
+for(h=b[1];h<c;h++)this._map[a][h]=1,k.push([a,h]);k=[];d.push(k);for(h=c+1;h<=b[3];h++)this._map[a][h]=1,k.push([a,h]);k=q.getItem(d);for(h=0;h<d.length;h++){var g=d[h];g!=k&&(g=q.getItem(g),this._map[g[0]][g[1]]=0)}this._stack.push([b[0],b[1],a-1,c-1]);this._stack.push([a+1,b[1],b[2],c-1]);this._stack.push([b[0],c+1,a-1,b[3]]);this._stack.push([a+1,c+1,b[2],b[3]])}};return c}(u),ta=function(d){function c(b,a,c){void 0===c&&(c=0);b=d.call(this,b,a)||this;b._regularity=c;b._map=[];return b}_inheritsLoose(c,
+d);var a=c.prototype;a.create=function(b){var a=this._width,c=this._height,d=this._fillMap(1);a-=a%2?1:2;c-=c%2?1:2;var k=0,h=[[0,0],[0,0],[0,0],[0,0]];do{var g=1+2*Math.floor(q.getUniform()*(a-1)/2);var l=1+2*Math.floor(q.getUniform()*(c-1)/2);k||(d[g][l]=0);if(!d[g][l]){this._randomize(h);do{0==Math.floor(q.getUniform()*(this._regularity+1))&&this._randomize(h);var p=!0;for(var r=0;4>r;r++){var t=g+2*h[r][0];var A=l+2*h[r][1];if(this._isFree(d,t,A,a,c)){d[t][A]=0;d[g+h[r][0]][l+h[r][1]]=0;g=t;l=
+A;p=!1;k++;break}}}while(!p)}}while(k+1<a*c/4);for(a=0;a<this._width;a++)for(c=0;c<this._height;c++)b(a,c,d[a][c]);this._map=[];return this};a._randomize=function(b){for(var a=0;4>a;a++)b[a][0]=0,b[a][1]=0;switch(Math.floor(4*q.getUniform())){case 0:b[0][0]=-1;b[1][0]=1;b[2][1]=-1;b[3][1]=1;break;case 1:b[3][0]=-1;b[2][0]=1;b[1][1]=-1;b[0][1]=1;break;case 2:b[2][0]=-1;b[3][0]=1;b[0][1]=-1;b[1][1]=1;break;case 3:b[1][0]=-1,b[0][0]=1,b[3][1]=-1,b[2][1]=1}};a._isFree=function(b,a,c,d,k){return 1>a||
+1>c||a>=d||c>=k?!1:b[a][c]};return c}(u);u=function(d){function c(b,a,c){b=d.call(this,b,a)||this;b.map=[];b.rooms=[];b.connectedCells=[];c=Object.assign({cellWidth:3,cellHeight:3},c);c.hasOwnProperty("roomWidth")||(c.roomWidth=b._calculateRoomSize(b._width,c.cellWidth));c.hasOwnProperty("roomHeight")||(c.roomHeight=b._calculateRoomSize(b._height,c.cellHeight));b._options=c;return b}_inheritsLoose(c,d);var a=c.prototype;a.create=function(b){this.map=this._fillMap(1);this.rooms=[];this.connectedCells=
+[];this._initRooms();this._connectRooms();this._connectUnconnectedRooms();this._createRandomRoomConnections();this._createRooms();this._createCorridors();if(b)for(var a=0;a<this._width;a++)for(var c=0;c<this._height;c++)b(a,c,this.map[a][c]);return this};a._calculateRoomSize=function(b,a){var c=Math.floor(b/a*.8);b=Math.floor(b/a*.25);2>b&&(b=2);2>c&&(c=2);return[b,c]};a._initRooms=function(){for(var b=0;b<this._options.cellWidth;b++){this.rooms.push([]);for(var a=0;a<this._options.cellHeight;a++)this.rooms[b].push({x:0,
+y:0,width:0,height:0,connections:[],cellx:b,celly:a})}};a._connectRooms=function(){var b=q.getUniformInt(0,this._options.cellWidth-1),a=q.getUniformInt(0,this._options.cellHeight-1);do{var c=[0,2,4,6];c=q.shuffle(c);do{var d=!1;var k=c.pop();var h=b+v[8][k][0];k=a+v[8][k][1];if(!(0>h||h>=this._options.cellWidth||0>k||k>=this._options.cellHeight)){var g=this.rooms[b][a];if(0<g.connections.length&&g.connections[0][0]==h&&g.connections[0][1]==k)break;g=this.rooms[h][k];0==g.connections.length&&(g.connections.push([b,
+a]),this.connectedCells.push([h,k]),b=h,a=k,d=!0)}}while(0<c.length&&0==d)}while(0<c.length)};a._connectUnconnectedRooms=function(){var b=this._options.cellWidth,a=this._options.cellHeight;this.connectedCells=q.shuffle(this.connectedCells);for(var c,d,k,h=0;h<this._options.cellWidth;h++)for(var g=0;g<this._options.cellHeight;g++)if(c=this.rooms[h][g],0==c.connections.length){var l=[0,2,4,6];l=q.shuffle(l);k=!1;do{var p=l.pop(),r=h+v[8][p][0];p=g+v[8][p][1];if(!(0>r||r>=b||0>p||p>=a)){d=this.rooms[r][p];
+k=!0;if(0==d.connections.length)break;for(r=0;r<d.connections.length;r++)if(d.connections[r][0]==h&&d.connections[r][1]==g){k=!1;break}if(k)break}}while(l.length);k?c.connections.push([d.cellx,d.celly]):console.log("-- Unable to connect room.")}};a._createRandomRoomConnections=function(){};a._createRooms=function(){for(var b=this._width,a=this._height,c=this._options.cellWidth,d=this._options.cellHeight,k=Math.floor(this._width/c),h=Math.floor(this._height/d),g,l,p=this._options.roomWidth,r=this._options.roomHeight,
+t,A,u,v=0;v<c;v++)for(var w=0;w<d;w++){t=k*v;A=h*w;0==t&&(t=1);0==A&&(A=1);g=q.getUniformInt(p[0],p[1]);l=q.getUniformInt(r[0],r[1]);if(0<w)for(u=this.rooms[v][w-1];3>A-(u.y+u.height);)A++;if(0<v)for(u=this.rooms[v-1][w];3>t-(u.x+u.width);)t++;u=Math.round(q.getUniformInt(0,k-g)/2);for(var x=Math.round(q.getUniformInt(0,h-l)/2);t+u+g>=b;)u?u--:g--;for(;A+x+l>=a;)x?x--:l--;t+=u;A+=x;this.rooms[v][w].x=t;this.rooms[v][w].y=A;this.rooms[v][w].width=g;this.rooms[v][w].height=l;for(u=t;u<t+g;u++)for(x=
+A;x<A+l;x++)this.map[u][x]=0}};a._getWallPosition=function(b,a){if(1==a||3==a){var c=q.getUniformInt(b.x+1,b.x+b.width-2);if(1==a){var e=b.y-2;b=e+1}else e=b.y+b.height+1,b=e-1;this.map[c][b]=0}else e=q.getUniformInt(b.y+1,b.y+b.height-2),2==a?(c=b.x+b.width+1,b=c-1):(c=b.x-2,b=c+1),this.map[b][e]=0;return[c,e]};a._drawCorridor=function(b,a){var c=a[0]-b[0],e=a[1]-b[1];a=b[0];b=b[1];var d=[];var h=Math.abs(c);var g=Math.abs(e);var l=q.getUniform();var p=1-l;c=0<c?2:6;e=0<e?4:0;h<g?(l=Math.ceil(g*
+l),d.push([e,l]),d.push([c,h]),l=Math.floor(g*p),d.push([e,l])):(l=Math.ceil(h*l),d.push([c,l]),d.push([e,g]),l=Math.floor(h*p),d.push([c,l]));for(this.map[a][b]=0;0<d.length;)for(h=d.pop();0<h[1];)a+=v[8][h[0]][0],b+=v[8][h[0]][1],this.map[a][b]=0,--h[1]};a._createCorridors=function(){for(var a=this._options.cellWidth,c=this._options.cellHeight,d,g,k,h,n=0;n<a;n++)for(var l=0;l<c;l++){d=this.rooms[n][l];for(var p=0;p<d.connections.length;p++)g=d.connections[p],g=this.rooms[g[0]][g[1]],g.cellx>d.cellx?
+(k=2,h=4):g.cellx<d.cellx?(k=4,h=2):g.celly>d.celly?(k=3,h=1):(k=1,h=3),this._drawCorridor(this._getWallPosition(d,k),this._getWallPosition(g,h))}};return c}(u);x={Arena:x,Uniform:D,Cellular:E,Digger:H,EllerMaze:ra,DividedMaze:sa,IceyMaze:ta,Rogue:u};var ua=.5*(Math.sqrt(3)-1),K=(3-Math.sqrt(3))/6;u={Simplex:function(d){function c(a){void 0===a&&(a=256);var b=d.call(this)||this;b._gradients=[[0,-1],[1,-1],[1,0],[1,1],[0,1],[-1,1],[-1,0],[-1,-1]];for(var c=[],f=0;f<a;f++)c.push(f);c=q.shuffle(c);b._perms=
+[];b._indexes=[];for(f=0;f<2*a;f++)b._perms.push(c[f%a]),b._indexes.push(b._perms[f]%b._gradients.length);return b}_inheritsLoose(c,d);c.prototype.get=function(a,b){var c=this._perms,d=this._indexes,g=c.length/2,k=0,h=0,n=0,l=(a+b)*ua,q=Math.floor(a+l);var r=Math.floor(b+l);var t=(q+r)*K;l=a-(q-t);var u=b-(r-t);if(l>u){var v=1;var w=0}else v=0,w=1;t=l-v+K;var x=u-w+K;b=l-1+2*K;a=u-1+2*K;q=p(q,g);g=p(r,g);var B=.5-l*l-u*u;0<=B&&(B*=B,r=d[q+c[g]],k=this._gradients[r],k=B*B*(k[0]*l+k[1]*u));l=.5-t*t-
+x*x;0<=l&&(l*=l,r=d[q+v+c[g+w]],h=this._gradients[r],h=l*l*(h[0]*t+h[1]*x));l=.5-b*b-a*a;0<=l&&(l*=l,r=d[q+1+c[g+1]],c=this._gradients[r],n=l*l*(c[0]*b+c[1]*a));return 70*(k+h+n)};return c}(function(){})};E=function(){function d(c,a,b,d){void 0===d&&(d={});this._toX=c;this._toY=a;this._passableCallback=b;this._options=Object.assign({topology:8},d);this._dirs=v[this._options.topology];8==this._options.topology&&(this._dirs=[this._dirs[0],this._dirs[2],this._dirs[4],this._dirs[6],this._dirs[1],this._dirs[3],
+this._dirs[5],this._dirs[7]])}d.prototype._getNeighbors=function(c,a){for(var b=[],d=0;d<this._dirs.length;d++){var f=this._dirs[d],g=c+f[0];f=a+f[1];this._passableCallback(g,f)&&b.push([g,f])}return b};return d}();D=function(d){function c(a,c,f,g){f=d.call(this,a,c,f,g)||this;f._computed={};f._todo=[];f._add(a,c,null);return f}_inheritsLoose(c,d);var a=c.prototype;a.compute=function(a,c,d){var b=a+","+c;b in this._computed||this._compute(a,c);if(b in this._computed)for(a=this._computed[b];a;)d(a.x,
+a.y),a=a.prev};a._compute=function(a,c){for(;this._todo.length;){var b=this._todo.shift();if(b.x==a&&b.y==c)break;for(var d=this._getNeighbors(b.x,b.y),e=0;e<d.length;e++){var g=d[e],n=g[0];g=g[1];n+","+g in this._computed||this._add(n,g,b)}}};a._add=function(a,c,d){d={x:a,y:c,prev:d};this._computed[a+","+c]=d;this._todo.push(d)};return c}(E);E=function(d){function c(a,c,f,g){void 0===g&&(g={});a=d.call(this,a,c,f,g)||this;a._todo=[];a._done={};return a}_inheritsLoose(c,d);var a=c.prototype;a.compute=
+function(a,c,d){this._todo=[];this._done={};this._fromX=a;this._fromY=c;for(this._add(this._toX,this._toY,null);this._todo.length;){var b=this._todo.shift(),e=b.x+","+b.y;if(!(e in this._done)){this._done[e]=b;if(b.x==a&&b.y==c)break;e=this._getNeighbors(b.x,b.y);for(var f=0;f<e.length;f++){var g=e[f],l=g[0];g=g[1];l+","+g in this._done||this._add(l,g,b)}}}if(a=this._done[a+","+c])for(;a;)d(a.x,a.y),a=a.prev};a._add=function(a,c,d){var b=this._distance(a,c);a={x:a,y:c,prev:d,g:d?d.g+1:0,h:b};c=a.g+
+a.h;for(d=0;d<this._todo.length;d++){var e=this._todo[d],f=e.g+e.h;if(c<f||c==f&&b<e.h){this._todo.splice(d,0,a);return}}this._todo.push(a)};a._distance=function(a,c){switch(this._options.topology){case 4:return Math.abs(a-this._fromX)+Math.abs(c-this._fromY);case 6:return c=Math.abs(c-this._fromY),c+Math.max(0,(Math.abs(a-this._fromX)-c)/2);case 8:return Math.max(Math.abs(a-this._fromX),Math.abs(c-this._fromY))}};return c}(E);D={Dijkstra:D,AStar:E};E=function(){function d(a){this._scheduler=a;this._lock=
+1}var c=d.prototype;c.start=function(){return this.unlock()};c.lock=function(){this._lock++;return this};c.unlock=function(){if(!this._lock)throw Error("Cannot unlock unlocked engine");for(this._lock--;!this._lock;){var a=this._scheduler.next();if(!a)return this.lock();(a=a.act())&&a.then&&(this.lock(),a.then(this.unlock.bind(this)))}return this};return d}();H=function(){function d(a,b){void 0===b&&(b={});this._reflectivityCallback=a;this._options={};b=Object.assign({passes:1,emissionThreshold:100,
+range:10},b);this._lights={};this._reflectivityCache={};this._fovCache={};this.setOptions(b)}var c=d.prototype;c.setOptions=function(a){Object.assign(this._options,a);a&&a.range&&this.reset();return this};c.setFOV=function(a){this._fov=a;this._fovCache={};return this};c.setLight=function(a,b,c){a=a+","+b;c?this._lights[a]="string"==typeof c?L(c):c:delete this._lights[a];return this};c.clearLights=function(){this._lights={}};c.reset=function(){this._reflectivityCache={};this._fovCache={};return this};
+c.compute=function(a){var b={},c={},d={},g;for(g in this._lights){var k=this._lights[g];c[g]=[0,0,0];Y(c[g],k)}for(g=0;g<this._options.passes;g++)this._emitLight(c,d,b),g+1!=this._options.passes&&(c=this._computeEmitters(d,b));for(var h in d)c=h.split(","),b=parseInt(c[0]),c=parseInt(c[1]),a(b,c,d[h]);return this};c._emitLight=function(a,b,c){for(var d in a){var e=d.split(","),g=parseInt(e[0]);e=parseInt(e[1]);this._emitLightFromCell(g,e,a[d],b);c[d]=1}return this};c._computeEmitters=function(a,b){var c=
+{},d;for(d in a)if(!(d in b)){var g=a[d];if(d in this._reflectivityCache)var k=this._reflectivityCache[d];else{var h=d.split(",");k=parseInt(h[0]);h=parseInt(h[1]);k=this._reflectivityCallback(k,h);this._reflectivityCache[d]=k}if(0!=k){h=[0,0,0];for(var n=0,l=0;3>l;l++){var p=Math.round(g[l]*k);h[l]=p;n+=p}n>this._options.emissionThreshold&&(c[d]=h)}}return c};c._emitLightFromCell=function(a,b,c,d){var e=a+","+b;a=e in this._fovCache?this._fovCache[e]:this._updateFOV(a,b);for(var f in a){b=a[f];f in
+d?e=d[f]:(e=[0,0,0],d[f]=e);for(var g=0;3>g;g++)e[g]+=Math.round(c[g]*b)}return this};c._updateFOV=function(a,b){var c={};this._fovCache[a+","+b]=c;var d=this._options.range;this._fov.compute(a,b,d,function(a,b,e,f){e=f*(1-e/d);0!=e&&(c[a+","+b]=e)}.bind(this));return c};return d}();g.Util=ka;g.Color=J;g.Text=I;g.RNG=q;g.Display=G;g.StringGenerator=O;g.EventQueue=ea;g.Scheduler=F;g.FOV=B;g.Map=x;g.Noise=u;g.Path=D;g.Engine=E;g.Lighting=H;g.DEFAULT_WIDTH=80;g.DEFAULT_HEIGHT=25;g.DIRS=v;g.KEYS={VK_CANCEL:3,
+VK_HELP:6,VK_BACK_SPACE:8,VK_TAB:9,VK_CLEAR:12,VK_RETURN:13,VK_ENTER:14,VK_SHIFT:16,VK_CONTROL:17,VK_ALT:18,VK_PAUSE:19,VK_CAPS_LOCK:20,VK_ESCAPE:27,VK_SPACE:32,VK_PAGE_UP:33,VK_PAGE_DOWN:34,VK_END:35,VK_HOME:36,VK_LEFT:37,VK_UP:38,VK_RIGHT:39,VK_DOWN:40,VK_PRINTSCREEN:44,VK_INSERT:45,VK_DELETE:46,VK_0:48,VK_1:49,VK_2:50,VK_3:51,VK_4:52,VK_5:53,VK_6:54,VK_7:55,VK_8:56,VK_9:57,VK_COLON:58,VK_SEMICOLON:59,VK_LESS_THAN:60,VK_EQUALS:61,VK_GREATER_THAN:62,VK_QUESTION_MARK:63,VK_AT:64,VK_A:65,VK_B:66,VK_C:67,
+VK_D:68,VK_E:69,VK_F:70,VK_G:71,VK_H:72,VK_I:73,VK_J:74,VK_K:75,VK_L:76,VK_M:77,VK_N:78,VK_O:79,VK_P:80,VK_Q:81,VK_R:82,VK_S:83,VK_T:84,VK_U:85,VK_V:86,VK_W:87,VK_X:88,VK_Y:89,VK_Z:90,VK_CONTEXT_MENU:93,VK_NUMPAD0:96,VK_NUMPAD1:97,VK_NUMPAD2:98,VK_NUMPAD3:99,VK_NUMPAD4:100,VK_NUMPAD5:101,VK_NUMPAD6:102,VK_NUMPAD7:103,VK_NUMPAD8:104,VK_NUMPAD9:105,VK_MULTIPLY:106,VK_ADD:107,VK_SEPARATOR:108,VK_SUBTRACT:109,VK_DECIMAL:110,VK_DIVIDE:111,VK_F1:112,VK_F2:113,VK_F3:114,VK_F4:115,VK_F5:116,VK_F6:117,VK_F7:118,
+VK_F8:119,VK_F9:120,VK_F10:121,VK_F11:122,VK_F12:123,VK_F13:124,VK_F14:125,VK_F15:126,VK_F16:127,VK_F17:128,VK_F18:129,VK_F19:130,VK_F20:131,VK_F21:132,VK_F22:133,VK_F23:134,VK_F24:135,VK_NUM_LOCK:144,VK_SCROLL_LOCK:145,VK_CIRCUMFLEX:160,VK_EXCLAMATION:161,VK_DOUBLE_QUOTE:162,VK_HASH:163,VK_DOLLAR:164,VK_PERCENT:165,VK_AMPERSAND:166,VK_UNDERSCORE:167,VK_OPEN_PAREN:168,VK_CLOSE_PAREN:169,VK_ASTERISK:170,VK_PLUS:171,VK_PIPE:172,VK_HYPHEN_MINUS:173,VK_OPEN_CURLY_BRACKET:174,VK_CLOSE_CURLY_BRACKET:175,
+VK_TILDE:176,VK_COMMA:188,VK_PERIOD:190,VK_SLASH:191,VK_BACK_QUOTE:192,VK_OPEN_BRACKET:219,VK_BACK_SLASH:220,VK_CLOSE_BRACKET:221,VK_QUOTE:222,VK_META:224,VK_ALTGR:225,VK_WIN:91,VK_KANA:21,VK_HANGUL:21,VK_EISU:22,VK_JUNJA:23,VK_FINAL:24,VK_HANJA:25,VK_KANJI:25,VK_CONVERT:28,VK_NONCONVERT:29,VK_ACCEPT:30,VK_MODECHANGE:31,VK_SELECT:41,VK_PRINT:42,VK_EXECUTE:43,VK_SLEEP:95};Object.defineProperty(g,"__esModule",{value:!0})});
diff --git a/html/js/teletype.js b/html/js/teletype.js
new file mode 100644
index 0000000..48476b5
--- /dev/null
+++ b/html/js/teletype.js
@@ -0,0 +1,81 @@
+(function ($) {
+    // writes the string
+    //
+    // @param jQuery $target
+    // @param String str
+    // @param Numeric cursor
+    // @param Numeric delay
+    // @param Function cb
+    // @return void
+    function typeString($target, str, cursor, delay, cb) {
+      $target.html(function (_, html) {
+        return html + str[cursor];
+      });
+  
+      if (cursor < str.length - 1) {
+        setTimeout(function () {
+          typeString($target, str, cursor + 1, delay, cb);
+        }, delay);
+      }
+      else {
+        cb();
+      }
+    }
+  
+    // clears the string
+    //
+    // @param jQuery $target
+    // @param Numeric delay
+    // @param Function cb
+    // @return void
+    function deleteString($target, delay, cb) {
+      var length;
+  
+      $target.html(function (_, html) {
+        length = html.length;
+        return html.substr(0, length - 1);
+      });
+  
+      if (length > 1) {
+        setTimeout(function () {
+          deleteString($target, delay, cb);
+        }, delay);
+      }
+      else {
+        cb();
+      }
+    }
+  
+    // jQuery hook
+    $.fn.extend({
+      teletype: function (opts) {
+        var settings = $.extend({}, $.teletype.defaults, opts);
+  
+        return $(this).each(function () {
+          (function loop($tar, idx) {
+            // type
+            typeString($tar, settings.text[idx], 0, settings.delay, function () {
+              // delete
+              setTimeout(function () {
+                deleteString($tar, settings.delay, function () {
+                  loop($tar, (idx + 1) % settings.text.length);
+                });
+              }, settings.pause);
+            });
+  
+          }($(this), 0));
+        });
+      }
+    });
+  
+    // plugin defaults  
+    $.extend({
+      teletype: {
+        defaults: {
+          delay: 100,
+          pause: 2500,
+          text: []
+        }
+      }
+    });
+  }(jQuery));
\ No newline at end of file
diff --git a/html/styles/fonts/pixel-operator/.uuid b/html/styles/fonts/pixel-operator/.uuid
new file mode 100644
index 0000000..a337373
--- /dev/null
+++ b/html/styles/fonts/pixel-operator/.uuid
@@ -0,0 +1 @@
+90232dfa-09e6-43b8-baa1-f3fc548757e8
\ No newline at end of file
diff --git a/html/styles/fonts/pixel-operator/LICENSE.txt b/html/styles/fonts/pixel-operator/LICENSE.txt
new file mode 100644
index 0000000..0e259d4
--- /dev/null
+++ b/html/styles/fonts/pixel-operator/LICENSE.txt
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
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+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
diff --git a/html/styles/fonts/pixel-operator/PixelOperator-Bold.ttf b/html/styles/fonts/pixel-operator/PixelOperator-Bold.ttf
new file mode 100644
index 0000000..745734f
Binary files /dev/null and b/html/styles/fonts/pixel-operator/PixelOperator-Bold.ttf differ
diff --git a/html/styles/fonts/pixel-operator/PixelOperator.ttf b/html/styles/fonts/pixel-operator/PixelOperator.ttf
new file mode 100644
index 0000000..34fe947
Binary files /dev/null and b/html/styles/fonts/pixel-operator/PixelOperator.ttf differ
diff --git a/html/styles/fonts/pixel-operator/PixelOperator8-Bold.ttf b/html/styles/fonts/pixel-operator/PixelOperator8-Bold.ttf
new file mode 100644
index 0000000..10225eb
Binary files /dev/null and b/html/styles/fonts/pixel-operator/PixelOperator8-Bold.ttf differ
diff --git a/html/styles/fonts/pixel-operator/PixelOperator8.ttf b/html/styles/fonts/pixel-operator/PixelOperator8.ttf
new file mode 100644
index 0000000..f9146ac
Binary files /dev/null and b/html/styles/fonts/pixel-operator/PixelOperator8.ttf differ
diff --git a/html/styles/fonts/pixel-operator/PixelOperatorHB.ttf b/html/styles/fonts/pixel-operator/PixelOperatorHB.ttf
new file mode 100644
index 0000000..d63fa39
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diff --git a/html/styles/fonts/pixel-operator/PixelOperatorSC-Bold.ttf b/html/styles/fonts/pixel-operator/PixelOperatorSC-Bold.ttf
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diff --git a/html/styles/fonts/pixel-operator/PixelOperatorSC.ttf b/html/styles/fonts/pixel-operator/PixelOperatorSC.ttf
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diff --git a/html/styles/fonts/stylesheet.css b/html/styles/fonts/stylesheet.css
new file mode 100644
index 0000000..687be9e
--- /dev/null
+++ b/html/styles/fonts/stylesheet.css
@@ -0,0 +1,67 @@
+/*
+@font-face {
+    font-family: 'pixel_operator_monoregular';
+    src: url('pixeloperatormono-webfont.woff2') format('woff2'),
+         url('pixeloperatormono-webfont.woff') format('woff');
+    font-weight: normal;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'pixel_operator_mono_8regular';
+    src: url('pixeloperatormono8-webfont.woff2') format('woff2'),
+         url('pixeloperatormono8-webfont.woff') format('woff');
+    font-weight: normal;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'pixel_operator_mono_8bold';
+    src: url('pixeloperatormono8-bold-webfont.woff2') format('woff2'),
+         url('pixeloperatormono8-bold-webfont.woff') format('woff');
+    font-weight: normal;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'pixel_operator_monobold';
+    src: url('pixeloperatormono-bold-webfont.woff2') format('woff2'),
+         url('pixeloperatormono-bold-webfont.woff') format('woff');
+    font-weight: normal;
+    font-style: normal;
+}
+*/
+body {
+    font-family: pixel_operator_monoregular;
+    background-color: lightgray;
+    color: blue;
+}
+
+.header {
+    background-color: lightslategrey;
+}
+
+h1 {
+    font-family: pixel_operator_monobold;
+
+}
+
+.wrapper {
+    display: grid;
+    grid-template-columns: auto auto auto;
+    grid-gap: 10px;
+    background-color: #2196F3;
+    padding: 10px;
+}
+  
+.wrapper > div {
+    background-color: rgba(255, 255, 255, 0.8);
+    text-align: center;
+    padding: 20px 0;
+    font-size: 30px;
+}
+  
+#item1 {
+    grid-column-start: 2;
+    grid-column-end: 3;
+}
\ No newline at end of file
diff --git a/html/styles/pixeloperatormono-bold-webfont.woff b/html/styles/pixeloperatormono-bold-webfont.woff
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diff --git a/html/styles/stylesheet.css b/html/styles/stylesheet.css
new file mode 100644
index 0000000..e15c511
--- /dev/null
+++ b/html/styles/stylesheet.css
@@ -0,0 +1,199 @@
+/* Basic body styling */
+body {
+    background-color: #222;
+    color: #eee;
+    font-family: sans-serif;
+    margin: 0;
+    padding: 0;
+    display: flex; /* Use flexbox to center wrapper */
+    justify-content: center;
+    align-items: flex-start; /* Align wrapper to top */
+    min-height: 100vh;
+}
+
+/* Wrapper grid container */
+.wrapper {
+    display: grid;
+    /* Define grid areas */
+    grid-template-areas:
+        "header header header"
+        "status game game"
+        "chat game game"
+        "chat game game"
+        "chat input input"
+        "footer footer footer";
+    /* Define column sizes: status/chat column, game columns */
+    grid-template-columns: 250px 1fr 1fr; /* Left sidebar fixed width, game takes remaining space */
+    /* Define row sizes */
+    grid-template-rows: auto auto 1fr 1fr auto auto; /* Header, status, chat rows, input, footer */
+    gap: 10px; /* Spacing between grid items */
+    padding: 10px;
+    max-width: 1400px;
+    width: 95%;
+    border: 1px solid #444;
+    background-color: #333;
+    height: 95vh; /* Set height to fill most of viewport */
+}
+
+/* Assign elements to grid areas */
+.header { 
+    grid-area: header; 
+    background-color: #444; 
+    padding: 5px; 
+}
+
+.status { 
+    grid-area: status; 
+    background-color: #444;
+    padding: 10px;
+    font-weight: bold;
+}
+
+.chat { 
+    grid-area: chat; 
+    background-color: #444;
+    padding: 10px;
+    display: flex;
+    flex-direction: column;
+    overflow: hidden; /* Prevent overflow */
+}
+
+.rotdis {
+    grid-area: game;
+    background-color: #111;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    overflow: hidden;
+}
+
+/* Make ROT.js canvas display properly */
+.rotdis canvas {
+    display: block;
+    max-width: 100%;
+    max-height: 100%;
+    object-fit: contain; /* Preserve aspect ratio */
+}
+
+#messageInput { 
+    grid-area: input; 
+    background-color: #444; 
+    padding: 10px; 
+}
+
+.footer { 
+    grid-area: footer; 
+    background-color: #444; 
+    padding: 5px; 
+    text-align: center; 
+}
+
+/* Header styling */
+.header h1 {
+    margin: 0;
+    padding: 5px;
+    text-align: center;
+}
+
+/* Status styling */
+#blockheight {
+    color: lightblue;
+}
+
+/* Chat box styling */
+#messageBox {
+    flex-grow: 1; /* Allow message box to fill chat area */
+    border: 1px solid #555;
+    background-color: #2a2a2a;
+    overflow-y: auto; /* Enable vertical scrolling */
+    height: 100%; /* Fill available height */
+    margin-bottom: 5px;
+}
+
+#messages {
+    list-style-type: none;
+    margin: 0;
+    padding: 5px;
+}
+
+#messages li {
+    padding: 2px 0;
+    border-bottom: 1px dashed #444;
+    font-size: 0.9em;
+}
+
+/* Chat input styling */
+#chatForm {
+    display: flex;
+}
+
+#chatInput {
+    flex-grow: 1;
+    padding: 5px;
+    border: 1px solid #555;
+    background-color: #eee;
+    color: #111;
+}
+
+#chatForm button {
+    padding: 5px 10px;
+    border: 1px solid #555;
+    background-color: #666;
+    color: #eee;
+    cursor: pointer;
+}
+
+#chatForm button:hover {
+    background-color: #777;
+}
+
+/* Teletype styling */
+#staticbanner {
+   margin: 0;
+   padding: 5px;
+   text-align: left;
+   font-size: 24px;
+   color: #fff;
+}
+
+#banner {
+   display: inline-block;
+   min-height: 1em;
+}
+
+#bannercursor {
+   display: inline-block;
+   color: #fff;
+}
+
+/* Add these styles for chat messages */
+
+#messages li.self-command {
+    color: #aaf;
+    font-style: italic;
+}
+
+#messages li.payment {
+    color: #ff0;
+    font-weight: bold;
+    border-left: 3px solid #ff0;
+    padding-left: 5px;
+    margin: 5px 0;
+}
+
+#messages li.win {
+    color: #0f0;
+    font-weight: bold;
+}
+
+#messages li.lose {
+    color: #f00;
+    font-weight: bold;
+}
+
+#messages li.game-start {
+    color: #0ff;
+    font-weight: bold;
+    margin: 5px 0;
+}
+
diff --git a/html/styles/test.css b/html/styles/test.css
new file mode 100644
index 0000000..8d7d127
--- /dev/null
+++ b/html/styles/test.css
@@ -0,0 +1,3 @@
+body {
+    color: green;
+}
\ No newline at end of file
diff --git a/html/test.html b/html/test.html
new file mode 100644
index 0000000..ad1f55a
--- /dev/null
+++ b/html/test.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+   <head>
+      <title>Wowgue</title>
+      <link rel="stylesheet" type="text/css" href="styles/test.css">
+   </head>
+
+
+
+   <body>
+      <div class="header">
+         <h1>Welcome traveler...</h1>
+      </div>
+      <div class="wrapper">
+         <div id="item1">1</div>
+         <div>2</div>
+         <div>3</div>
+         <div>4</div>
+         <div>5</div>
+         <div>6sssssssssssssssssssssssss</div>
+      </div>
+
+   </body>
+</html>
\ No newline at end of file
diff --git a/html/tiles.png b/html/tiles.png
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diff --git a/html/tiles.xcf b/html/tiles.xcf
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index 0000000..2fbed9d
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diff --git a/index.js b/index.js
new file mode 100644
index 0000000..a568585
--- /dev/null
+++ b/index.js
@@ -0,0 +1,285 @@
+const express = require('express');
+var app = require('express')();
+var http = require('http').Server(app);
+var io = require('socket.io')(http);
+var rpc = require('./rpccalls.js');
+var db = require('./dbcalls.js');
+var user = require('./user.js');
+const Game = require('./game');
+const activeGames = new Map(); // Maps socketId to Game objects
+let lastBlockHeight = 0; // Track last block height
+const MIN_FEE = 10; // Minimum entrance fee in WOW
+const MAX_FEE = 100; // Maximum entrance fee in WOW
+const WAITING_PLAYERS = []; // Players waiting for the next block
+
+var users = [];
+var players = [];
+
+app.use(express.static('html'));
+app.get('/', function(req, res) {
+   res.sendfile('index.html');
+});
+
+// Function to get a user by socket ID
+function getUserBySocket(socketId) {
+  return users.find(user => user.socketid === socketId);
+}
+
+// Modified block check function
+setInterval(function() {
+  rpc.daemonCall("get_block_count", "", function(result) {
+    const currentHeight = result.result.count;
+    rpc.lastBlock.setHeight(currentHeight);
+    
+    // If new block found
+    if (currentHeight > lastBlockHeight) {
+      console.log(`New block found: ${currentHeight}`);
+      io.emit('blockheight', currentHeight);
+      
+      // Start games for waiting players
+      startGamesForWaiting(currentHeight);
+      
+      // Check active games for timeout
+      checkGamesTimeout(currentHeight);
+      
+      lastBlockHeight = currentHeight;
+    } else {
+      io.emit('blockheight', currentHeight);
+    }
+  });
+}, 10000);
+
+// Start games for waiting players
+function startGamesForWaiting(blockHeight) {
+  while (WAITING_PLAYERS.length > 0) {
+    const userId = WAITING_PLAYERS.shift();
+    const user = getUserBySocket(userId);
+    
+    if (user) {
+      user.blockRec = blockHeight;
+      const game = user.startGame(80, 40); // Create a new game
+      activeGames.set(userId, game);
+      
+      io.to(userId).emit('game_start', {
+        map: game.dungeon.map,
+        player: game.player,
+        monster: game.monster,
+        entrance: game.dungeon.entrance,
+        exit: game.dungeon.exit,
+        treasure: game.dungeon.treasure,
+        blockHeight: blockHeight
+      });
+    }
+  }
+}
+
+// Check if any active games have timed out
+function checkGamesTimeout(currentHeight) {
+  activeGames.forEach((game, socketId) => {
+    const user = getUserBySocket(socketId);
+    
+    if (user && user.blockRec && currentHeight > user.blockRec + 1) {
+      // Game has timed out - player didn't escape in time
+      game.gameState = 'lost';
+      io.to(socketId).emit('game_over', {
+        status: 'lost',
+        reason: 'timeout',
+        message: 'You didn\'t escape before the next block was found!'
+      });
+      
+      activeGames.delete(socketId);
+    }
+  });
+}
+
+// Socket.io handlers
+io.on('connection', function(socket) {
+  console.log('A user connected');
+  console.log(socket.client.id);
+  console.log(socket.handshake.address);
+  
+  db.insertVisitor(socket.client.id, socket.handshake.address, 0);
+  users.push(new user.User(socket.client.id, socket.handshake.address));
+  
+  io.to(`${socket.client.id}`).emit('welcome', socket.client.id);
+
+  socket.on('chat message', function(msg) {
+    console.log(msg);
+    
+    if (msg.toLowerCase() == 'hello') {
+      io.to(`${socket.client.id}`).emit('message', 
+        'Welcome, to enter the dungeon type Enter, and you will be given a Wownero address, ' +
+        'which you must send between 10-100 WOW to enter. The more you send, the more you can win.');
+    }
+    else if (msg.toLowerCase() == 'enter') {
+      const currentUser = getUserBySocket(socket.client.id);
+      
+      if (currentUser) {
+        // FOR TESTING: Skip payment and directly queue the player
+        currentUser.verifyPayment(10); // Minimal test fee
+        WAITING_PLAYERS.push(socket.client.id);
+        
+        io.to(`${socket.client.id}`).emit('message', 
+          'For testing: You will enter the dungeon when the next block is found.');
+          
+        // To test without waiting for a block, immediately start a game
+        startGameForPlayer(socket.client.id, lastBlockHeight || 1);
+      }
+    }
+    else {
+      io.emit('message', msg);
+    }
+  });
+
+  // Handle player movement
+  socket.on('move', function(direction) {
+    const game = activeGames.get(socket.client.id);
+    
+    if (game) {
+      let dx = 0, dy = 0;
+      
+      // Convert direction to dx,dy
+      switch(direction) {
+        case 'up': dy = -1; break;
+        case 'down': dy = 1; break;
+        case 'left': dx = -1; break;
+        case 'right': dx = 1; break;
+      }
+      
+      const result = game.movePlayer(dx, dy);
+      
+      // Send updated game state
+      socket.emit('game_update', {
+        player: game.player,
+        monster: game.monster,
+        status: result.status
+      });
+      
+      // Handle win/lose conditions
+      if (result.status === 'won') {
+        const user = getUserBySocket(socket.client.id);
+        const reward = user.calculateReward();
+        
+        socket.emit('game_over', {
+          status: 'won',
+          hasTreasure: game.player.hasTreasure,
+          reward: reward
+        });
+        
+        // TODO: Process payout
+        
+        activeGames.delete(socket.client.id);
+      }
+      else if (result.status === 'lost') {
+        socket.emit('game_over', {
+          status: 'lost',
+          reason: result.reason
+        });
+        
+        activeGames.delete(socket.client.id);
+      }
+    }
+  });
+
+  // Handle disconnection
+  socket.on('disconnect', function () {
+    console.log('A user disconnected');
+    
+    // Clean up any active games
+    if (activeGames.has(socket.client.id)) {
+      activeGames.delete(socket.client.id);
+    }
+    
+    users = spliceOut(socket.client.id, "socketid", users);
+  });
+});
+
+http.listen(3000, function() {
+   console.log('listening on *:3000');
+});
+
+
+// Remove objects from an array if one attribute matches
+function spliceOut(target, field, array) {
+  for (var i = array.length - 1; i >= 0; --i) {
+    if (array[i][field] == target) {
+      array.splice(i,1);
+    }
+  }
+  return array;
+}
+// Check if objects are in an array if one attribute matches
+function checkArray(target, field, array) {
+  for (var i = array.length - 1; i >= 0; --i) {
+    if (array[i][field] == target) {
+      return true;
+    }
+  }
+  return false;
+}
+
+// Add this function to generate a dungeon
+function generateDungeon(width, height) {
+  // Create a new instance of ROT.Map.Digger
+  const digger = new ROT.Map.Digger(width, height, {
+    roomWidth: [3, 9],
+    roomHeight: [3, 5],
+    corridorLength: [2, 5],
+    dugPercentage: 0.2
+  });
+  
+  // Create a map representation
+  const map = Array(height).fill().map(() => Array(width).fill(1)); // 1 = wall
+  
+  // Callback to dig out rooms and corridors
+  digger.create((x, y, value) => {
+    map[y][x] = value; // 0 = floor, 1 = wall
+  });
+  
+  // Get rooms and place special features
+  const rooms = digger.getRooms();
+  let entrance = null;
+  let exit = null;
+  let treasure = null;
+  
+  if (rooms.length > 0) {
+    // Place entrance in the first room
+    entrance = rooms[0].getCenter();
+    
+    // Place exit in the last room
+    exit = rooms[rooms.length-1].getCenter();
+    
+    // Place treasure in a middle room
+    const treasureRoom = rooms[Math.floor(rooms.length/2)];
+    treasure = treasureRoom.getCenter();
+  }
+  
+  return {
+    map: map,
+    entrance: entrance,
+    exit: exit,
+    treasure: treasure,
+    rooms: rooms
+  };
+}
+
+// Add this helper function to start a game for a specific player immediately:
+function startGameForPlayer(socketId, blockHeight) {
+  const user = getUserBySocket(socketId);
+  
+  if (user) {
+    user.blockRec = blockHeight;
+    const game = user.startGame(25, 19); // Create a new game with dimensions matching our display
+    activeGames.set(socketId, game);
+    
+    io.to(socketId).emit('game_start', {
+      map: game.dungeon.map,
+      player: game.player,
+      monster: game.monster,
+      entrance: game.dungeon.entrance,
+      exit: game.dungeon.exit,
+      treasure: game.dungeon.treasure,
+      blockHeight: blockHeight
+    });
+  }
+}
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..30547ec
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1597 @@
+{
+  "name": "bitrogue",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "bitrogue",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "axios": "^1.9.0",
+        "express": "^4.17.1",
+        "pg": "^8.15.5",
+        "request": "^2.88.0",
+        "socket.io": "^4.8.1"
+      }
+    },
+    "node_modules/@socket.io/component-emitter": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.2.tgz",
+      "integrity": "sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA=="
+    },
+    "node_modules/@types/cors": {
+      "version": "2.8.17",
+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.17.tgz",
+      "integrity": "sha512-8CGDvrBj1zgo2qE+oS3pOCyYNqCPryMWY2bGfwA0dcfopWGgxs+78df0Rs3rc9THP4JkOhLsAa+15VdpAqkcUA==",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
+    "node_modules/@types/node": {
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+        "sshpk-sign": "bin/sshpk-sign",
+        "sshpk-verify": "bin/sshpk-verify"
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+      }
+    },
+    "node_modules/utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
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+      "deprecated": "Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.",
+      "bin": {
+        "uuid": "bin/uuid"
+      }
+    },
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+        "node >=0.6.0"
+      ],
+      "dependencies": {
+        "assert-plus": "^1.0.0",
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+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
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+      "engines": {
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+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..3a569eb
--- /dev/null
+++ b/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "bitrogue",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "jw",
+  "license": "ISC",
+  "dependencies": {
+    "axios": "^1.9.0",
+    "express": "^4.17.1",
+    "pg": "^8.15.5",
+    "request": "^2.88.0",
+    "socket.io": "^4.8.1"
+  }
+}
diff --git a/rot.js b/rot.js
new file mode 100644
index 0000000..03f3919
--- /dev/null
+++ b/rot.js
@@ -0,0 +1,7228 @@
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
+
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : typeof define === 'function' && define.amd ? define(['exports'], factory) : factory(global.ROT = {});
+})(this, function (exports) {
+  'use strict';
+  /**
+   * This code is an implementation of Alea algorithm; (C) 2010 Johannes Baagøe.
+   * Alea is licensed according to the http://en.wikipedia.org/wiki/MIT_License.
+   */
+
+  var FRAC = 2.3283064365386963e-10;
+  /* 2^-32 */
+
+  var RNG =
+  /*#__PURE__*/
+  function () {
+    function RNG() {
+      this._seed = 0;
+      this._s0 = 0;
+      this._s1 = 0;
+      this._s2 = 0;
+      this._c = 0;
+    }
+
+    var _proto = RNG.prototype;
+
+    _proto.getSeed = function getSeed() {
+      return this._seed;
+    };
+    /**
+     * Seed the number generator
+     */
+
+
+    _proto.setSeed = function setSeed(seed) {
+      seed = seed < 1 ? 1 / seed : seed;
+      this._seed = seed;
+      this._s0 = (seed >>> 0) * FRAC;
+      seed = seed * 69069 + 1 >>> 0;
+      this._s1 = seed * FRAC;
+      seed = seed * 69069 + 1 >>> 0;
+      this._s2 = seed * FRAC;
+      this._c = 1;
+      return this;
+    };
+    /**
+     * @returns Pseudorandom value [0,1), uniformly distributed
+     */
+
+
+    _proto.getUniform = function getUniform() {
+      var t = 2091639 * this._s0 + this._c * FRAC;
+      this._s0 = this._s1;
+      this._s1 = this._s2;
+      this._c = t | 0;
+      this._s2 = t - this._c;
+      return this._s2;
+    };
+    /**
+     * @param lowerBound The lower end of the range to return a value from, inclusive
+     * @param upperBound The upper end of the range to return a value from, inclusive
+     * @returns Pseudorandom value [lowerBound, upperBound], using ROT.RNG.getUniform() to distribute the value
+     */
+
+
+    _proto.getUniformInt = function getUniformInt(lowerBound, upperBound) {
+      var max = Math.max(lowerBound, upperBound);
+      var min = Math.min(lowerBound, upperBound);
+      return Math.floor(this.getUniform() * (max - min + 1)) + min;
+    };
+    /**
+     * @param mean Mean value
+     * @param stddev Standard deviation. ~95% of the absolute values will be lower than 2*stddev.
+     * @returns A normally distributed pseudorandom value
+     */
+
+
+    _proto.getNormal = function getNormal(mean, stddev) {
+      if (mean === void 0) {
+        mean = 0;
+      }
+
+      if (stddev === void 0) {
+        stddev = 1;
+      }
+
+      var u, v, r;
+
+      do {
+        u = 2 * this.getUniform() - 1;
+        v = 2 * this.getUniform() - 1;
+        r = u * u + v * v;
+      } while (r > 1 || r == 0);
+
+      var gauss = u * Math.sqrt(-2 * Math.log(r) / r);
+      return mean + gauss * stddev;
+    };
+    /**
+     * @returns Pseudorandom value [1,100] inclusive, uniformly distributed
+     */
+
+
+    _proto.getPercentage = function getPercentage() {
+      return 1 + Math.floor(this.getUniform() * 100);
+    };
+    /**
+     * @returns Randomly picked item, null when length=0
+     */
+
+
+    _proto.getItem = function getItem(array) {
+      if (!array.length) {
+        return null;
+      }
+
+      return array[Math.floor(this.getUniform() * array.length)];
+    };
+    /**
+     * @returns New array with randomized items
+     */
+
+
+    _proto.shuffle = function shuffle(array) {
+      var result = [];
+      var clone = array.slice();
+
+      while (clone.length) {
+        var _index = clone.indexOf(this.getItem(clone));
+
+        result.push(clone.splice(_index, 1)[0]);
+      }
+
+      return result;
+    };
+    /**
+     * @param data key=whatever, value=weight (relative probability)
+     * @returns whatever
+     */
+
+
+    _proto.getWeightedValue = function getWeightedValue(data) {
+      var total = 0;
+
+      for (var _id in data) {
+        total += data[_id];
+      }
+
+      var random = this.getUniform() * total;
+      var id,
+          part = 0;
+
+      for (id in data) {
+        part += data[id];
+
+        if (random < part) {
+          return id;
+        }
+      } // If by some floating-point annoyance we have
+      // random >= total, just return the last id.
+
+
+      return id;
+    };
+    /**
+     * Get RNG state. Useful for storing the state and re-setting it via setState.
+     * @returns Internal state
+     */
+
+
+    _proto.getState = function getState() {
+      return [this._s0, this._s1, this._s2, this._c];
+    };
+    /**
+     * Set a previously retrieved state.
+     */
+
+
+    _proto.setState = function setState(state) {
+      this._s0 = state[0];
+      this._s1 = state[1];
+      this._s2 = state[2];
+      this._c = state[3];
+      return this;
+    };
+    /**
+     * Returns a cloned RNG
+     */
+
+
+    _proto.clone = function clone() {
+      var clone = new RNG();
+      return clone.setState(this.getState());
+    };
+
+    return RNG;
+  }();
+
+  var RNG$1 = new RNG().setSeed(Date.now());
+  /**
+   * @class Abstract display backend module
+   * @private
+   */
+
+  var Backend =
+  /*#__PURE__*/
+  function () {
+    function Backend() {}
+
+    var _proto2 = Backend.prototype;
+
+    _proto2.getContainer = function getContainer() {
+      return null;
+    };
+
+    _proto2.setOptions = function setOptions(options) {
+      this._options = options;
+    };
+
+    return Backend;
+  }();
+
+  var Canvas =
+  /*#__PURE__*/
+  function (_Backend) {
+    _inheritsLoose(Canvas, _Backend);
+
+    function Canvas() {
+      var _this;
+
+      _this = _Backend.call(this) || this;
+      _this._ctx = document.createElement("canvas").getContext("2d");
+      return _this;
+    }
+
+    var _proto3 = Canvas.prototype;
+
+    _proto3.schedule = function schedule(cb) {
+      requestAnimationFrame(cb);
+    };
+
+    _proto3.getContainer = function getContainer() {
+      return this._ctx.canvas;
+    };
+
+    _proto3.setOptions = function setOptions(opts) {
+      _Backend.prototype.setOptions.call(this, opts);
+
+      var style = opts.fontStyle ? opts.fontStyle + " " : "";
+      var font = style + " " + opts.fontSize + "px " + opts.fontFamily;
+      this._ctx.font = font;
+
+      this._updateSize();
+
+      this._ctx.font = font;
+      this._ctx.textAlign = "center";
+      this._ctx.textBaseline = "middle";
+    };
+
+    _proto3.clear = function clear() {
+      this._ctx.fillStyle = this._options.bg;
+
+      this._ctx.fillRect(0, 0, this._ctx.canvas.width, this._ctx.canvas.height);
+    };
+
+    _proto3.eventToPosition = function eventToPosition(x, y) {
+      var canvas = this._ctx.canvas;
+      var rect = canvas.getBoundingClientRect();
+      x -= rect.left;
+      y -= rect.top;
+      x *= canvas.width / rect.width;
+      y *= canvas.height / rect.height;
+
+      if (x < 0 || y < 0 || x >= canvas.width || y >= canvas.height) {
+        return [-1, -1];
+      }
+
+      return this._normalizedEventToPosition(x, y);
+    };
+
+    return Canvas;
+  }(Backend);
+  /**
+   * Always positive modulus
+   * @param x Operand
+   * @param n Modulus
+   * @returns x modulo n
+   */
+
+
+  function mod(x, n) {
+    return (x % n + n) % n;
+  }
+
+  function clamp(val, min, max) {
+    if (min === void 0) {
+      min = 0;
+    }
+
+    if (max === void 0) {
+      max = 1;
+    }
+
+    if (val < min) return min;
+    if (val > max) return max;
+    return val;
+  }
+
+  function capitalize(string) {
+    return string.charAt(0).toUpperCase() + string.substring(1);
+  }
+  /**
+   * Format a string in a flexible way. Scans for %s strings and replaces them with arguments. List of patterns is modifiable via String.format.map.
+   * @param {string} template
+   * @param {any} [argv]
+   */
+
+
+  function format(template) {
+    for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+      args[_key - 1] = arguments[_key];
+    }
+
+    var map = format.map;
+
+    var replacer = function replacer(match, group1, group2, index) {
+      if (template.charAt(index - 1) == "%") {
+        return match.substring(1);
+      }
+
+      if (!args.length) {
+        return match;
+      }
+
+      var obj = args[0];
+      var group = group1 || group2;
+      var parts = group.split(",");
+      var name = parts.shift() || "";
+      var method = map[name.toLowerCase()];
+
+      if (!method) {
+        return match;
+      }
+
+      obj = args.shift();
+      var replaced = obj[method].apply(obj, parts);
+      var first = name.charAt(0);
+
+      if (first != first.toLowerCase()) {
+        replaced = capitalize(replaced);
+      }
+
+      return replaced;
+    };
+
+    return template.replace(/%(?:([a-z]+)|(?:{([^}]+)}))/gi, replacer);
+  }
+
+  format.map = {
+    "s": "toString"
+  };
+  var util =
+  /*#__PURE__*/
+  Object.freeze({
+    mod: mod,
+    clamp: clamp,
+    capitalize: capitalize,
+    format: format
+  });
+  /**
+   * @class Hexagonal backend
+   * @private
+   */
+
+  var Hex =
+  /*#__PURE__*/
+  function (_Canvas) {
+    _inheritsLoose(Hex, _Canvas);
+
+    function Hex() {
+      var _this2;
+
+      _this2 = _Canvas.call(this) || this;
+      _this2._spacingX = 0;
+      _this2._spacingY = 0;
+      _this2._hexSize = 0;
+      return _this2;
+    }
+
+    var _proto4 = Hex.prototype;
+
+    _proto4.draw = function draw(data, clearBefore) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var px = [(x + 1) * this._spacingX, y * this._spacingY + this._hexSize];
+
+      if (this._options.transpose) {
+        px.reverse();
+      }
+
+      if (clearBefore) {
+        this._ctx.fillStyle = bg;
+
+        this._fill(px[0], px[1]);
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      this._ctx.fillStyle = fg;
+      var chars = [].concat(ch);
+
+      for (var i = 0; i < chars.length; i++) {
+        this._ctx.fillText(chars[i], px[0], Math.ceil(px[1]));
+      }
+    };
+
+    _proto4.computeSize = function computeSize(availWidth, availHeight) {
+      if (this._options.transpose) {
+        availWidth += availHeight;
+        availHeight = availWidth - availHeight;
+        availWidth -= availHeight;
+      }
+
+      var width = Math.floor(availWidth / this._spacingX) - 1;
+      var height = Math.floor((availHeight - 2 * this._hexSize) / this._spacingY + 1);
+      return [width, height];
+    };
+
+    _proto4.computeFontSize = function computeFontSize(availWidth, availHeight) {
+      if (this._options.transpose) {
+        availWidth += availHeight;
+        availHeight = availWidth - availHeight;
+        availWidth -= availHeight;
+      }
+
+      var hexSizeWidth = 2 * availWidth / ((this._options.width + 1) * Math.sqrt(3)) - 1;
+      var hexSizeHeight = availHeight / (2 + 1.5 * (this._options.height - 1));
+      var hexSize = Math.min(hexSizeWidth, hexSizeHeight); // compute char ratio
+
+      var oldFont = this._ctx.font;
+      this._ctx.font = "100px " + this._options.fontFamily;
+      var width = Math.ceil(this._ctx.measureText("W").width);
+      this._ctx.font = oldFont;
+      var ratio = width / 100;
+      hexSize = Math.floor(hexSize) + 1; // closest larger hexSize
+      // FIXME char size computation does not respect transposed hexes
+
+      var fontSize = 2 * hexSize / (this._options.spacing * (1 + ratio / Math.sqrt(3))); // closest smaller fontSize
+
+      return Math.ceil(fontSize) - 1;
+    };
+
+    _proto4._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      var nodeSize;
+
+      if (this._options.transpose) {
+        x += y;
+        y = x - y;
+        x -= y;
+        nodeSize = this._ctx.canvas.width;
+      } else {
+        nodeSize = this._ctx.canvas.height;
+      }
+
+      var size = nodeSize / this._options.height;
+      y = Math.floor(y / size);
+
+      if (mod(y, 2)) {
+        /* odd row */
+        x -= this._spacingX;
+        x = 1 + 2 * Math.floor(x / (2 * this._spacingX));
+      } else {
+        x = 2 * Math.floor(x / (2 * this._spacingX));
+      }
+
+      return [x, y];
+    };
+    /**
+     * Arguments are pixel values. If "transposed" mode is enabled, then these two are already swapped.
+     */
+
+
+    _proto4._fill = function _fill(cx, cy) {
+      var a = this._hexSize;
+      var b = this._options.border;
+      var ctx = this._ctx;
+      ctx.beginPath();
+
+      if (this._options.transpose) {
+        ctx.moveTo(cx - a + b, cy);
+        ctx.lineTo(cx - a / 2 + b, cy + this._spacingX - b);
+        ctx.lineTo(cx + a / 2 - b, cy + this._spacingX - b);
+        ctx.lineTo(cx + a - b, cy);
+        ctx.lineTo(cx + a / 2 - b, cy - this._spacingX + b);
+        ctx.lineTo(cx - a / 2 + b, cy - this._spacingX + b);
+        ctx.lineTo(cx - a + b, cy);
+      } else {
+        ctx.moveTo(cx, cy - a + b);
+        ctx.lineTo(cx + this._spacingX - b, cy - a / 2 + b);
+        ctx.lineTo(cx + this._spacingX - b, cy + a / 2 - b);
+        ctx.lineTo(cx, cy + a - b);
+        ctx.lineTo(cx - this._spacingX + b, cy + a / 2 - b);
+        ctx.lineTo(cx - this._spacingX + b, cy - a / 2 + b);
+        ctx.lineTo(cx, cy - a + b);
+      }
+
+      ctx.fill();
+    };
+
+    _proto4._updateSize = function _updateSize() {
+      var opts = this._options;
+      var charWidth = Math.ceil(this._ctx.measureText("W").width);
+      this._hexSize = Math.floor(opts.spacing * (opts.fontSize + charWidth / Math.sqrt(3)) / 2);
+      this._spacingX = this._hexSize * Math.sqrt(3) / 2;
+      this._spacingY = this._hexSize * 1.5;
+      var xprop;
+      var yprop;
+
+      if (opts.transpose) {
+        xprop = "height";
+        yprop = "width";
+      } else {
+        xprop = "width";
+        yprop = "height";
+      }
+
+      this._ctx.canvas[xprop] = Math.ceil((opts.width + 1) * this._spacingX);
+      this._ctx.canvas[yprop] = Math.ceil((opts.height - 1) * this._spacingY + 2 * this._hexSize);
+    };
+
+    return Hex;
+  }(Canvas);
+  /**
+   * @class Rectangular backend
+   * @private
+   */
+
+
+  var Rect =
+  /*#__PURE__*/
+  function (_Canvas2) {
+    _inheritsLoose(Rect, _Canvas2);
+
+    function Rect() {
+      var _this3;
+
+      _this3 = _Canvas2.call(this) || this;
+      _this3._spacingX = 0;
+      _this3._spacingY = 0;
+      _this3._canvasCache = {};
+      return _this3;
+    }
+
+    var _proto5 = Rect.prototype;
+
+    _proto5.setOptions = function setOptions(options) {
+      _Canvas2.prototype.setOptions.call(this, options);
+
+      this._canvasCache = {};
+    };
+
+    _proto5.draw = function draw(data, clearBefore) {
+      if (Rect.cache) {
+        this._drawWithCache(data);
+      } else {
+        this._drawNoCache(data, clearBefore);
+      }
+    };
+
+    _proto5._drawWithCache = function _drawWithCache(data) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var hash = "" + ch + fg + bg;
+      var canvas;
+
+      if (hash in this._canvasCache) {
+        canvas = this._canvasCache[hash];
+      } else {
+        var b = this._options.border;
+        canvas = document.createElement("canvas");
+        var ctx = canvas.getContext("2d");
+        canvas.width = this._spacingX;
+        canvas.height = this._spacingY;
+        ctx.fillStyle = bg;
+        ctx.fillRect(b, b, canvas.width - b, canvas.height - b);
+
+        if (ch) {
+          ctx.fillStyle = fg;
+          ctx.font = this._ctx.font;
+          ctx.textAlign = "center";
+          ctx.textBaseline = "middle";
+          var chars = [].concat(ch);
+
+          for (var i = 0; i < chars.length; i++) {
+            ctx.fillText(chars[i], this._spacingX / 2, Math.ceil(this._spacingY / 2));
+          }
+        }
+
+        this._canvasCache[hash] = canvas;
+      }
+
+      this._ctx.drawImage(canvas, x * this._spacingX, y * this._spacingY);
+    };
+
+    _proto5._drawNoCache = function _drawNoCache(data, clearBefore) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+
+      if (clearBefore) {
+        var b = this._options.border;
+        this._ctx.fillStyle = bg;
+
+        this._ctx.fillRect(x * this._spacingX + b, y * this._spacingY + b, this._spacingX - b, this._spacingY - b);
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      this._ctx.fillStyle = fg;
+      var chars = [].concat(ch);
+
+      for (var i = 0; i < chars.length; i++) {
+        this._ctx.fillText(chars[i], (x + 0.5) * this._spacingX, Math.ceil((y + 0.5) * this._spacingY));
+      }
+    };
+
+    _proto5.computeSize = function computeSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._spacingX);
+      var height = Math.floor(availHeight / this._spacingY);
+      return [width, height];
+    };
+
+    _proto5.computeFontSize = function computeFontSize(availWidth, availHeight) {
+      var boxWidth = Math.floor(availWidth / this._options.width);
+      var boxHeight = Math.floor(availHeight / this._options.height);
+      /* compute char ratio */
+
+      var oldFont = this._ctx.font;
+      this._ctx.font = "100px " + this._options.fontFamily;
+      var width = Math.ceil(this._ctx.measureText("W").width);
+      this._ctx.font = oldFont;
+      var ratio = width / 100;
+      var widthFraction = ratio * boxHeight / boxWidth;
+
+      if (widthFraction > 1) {
+        /* too wide with current aspect ratio */
+        boxHeight = Math.floor(boxHeight / widthFraction);
+      }
+
+      return Math.floor(boxHeight / this._options.spacing);
+    };
+
+    _proto5._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      return [Math.floor(x / this._spacingX), Math.floor(y / this._spacingY)];
+    };
+
+    _proto5._updateSize = function _updateSize() {
+      var opts = this._options;
+      var charWidth = Math.ceil(this._ctx.measureText("W").width);
+      this._spacingX = Math.ceil(opts.spacing * charWidth);
+      this._spacingY = Math.ceil(opts.spacing * opts.fontSize);
+
+      if (opts.forceSquareRatio) {
+        this._spacingX = this._spacingY = Math.max(this._spacingX, this._spacingY);
+      }
+
+      this._ctx.canvas.width = opts.width * this._spacingX;
+      this._ctx.canvas.height = opts.height * this._spacingY;
+    };
+
+    return Rect;
+  }(Canvas);
+
+  Rect.cache = false;
+  /**
+   * @class Tile backend
+   * @private
+   */
+
+  var Tile =
+  /*#__PURE__*/
+  function (_Canvas3) {
+    _inheritsLoose(Tile, _Canvas3);
+
+    function Tile() {
+      var _this4;
+
+      _this4 = _Canvas3.call(this) || this;
+      _this4._colorCanvas = document.createElement("canvas");
+      return _this4;
+    }
+
+    var _proto6 = Tile.prototype;
+
+    _proto6.draw = function draw(data, clearBefore) {
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var tileWidth = this._options.tileWidth;
+      var tileHeight = this._options.tileHeight;
+
+      if (clearBefore) {
+        if (this._options.tileColorize) {
+          this._ctx.clearRect(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        } else {
+          this._ctx.fillStyle = bg;
+
+          this._ctx.fillRect(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        }
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      var chars = [].concat(ch);
+      var fgs = [].concat(fg);
+      var bgs = [].concat(bg);
+
+      for (var i = 0; i < chars.length; i++) {
+        var tile = this._options.tileMap[chars[i]];
+
+        if (!tile) {
+          throw new Error("Char \"" + chars[i] + "\" not found in tileMap");
+        }
+
+        if (this._options.tileColorize) {
+          // apply colorization
+          var canvas = this._colorCanvas;
+          var context = canvas.getContext("2d");
+          context.globalCompositeOperation = "source-over";
+          context.clearRect(0, 0, tileWidth, tileHeight);
+          var _fg = fgs[i];
+          var _bg = bgs[i];
+          context.drawImage(this._options.tileSet, tile[0], tile[1], tileWidth, tileHeight, 0, 0, tileWidth, tileHeight);
+
+          if (_fg != "transparent") {
+            context.fillStyle = _fg;
+            context.globalCompositeOperation = "source-atop";
+            context.fillRect(0, 0, tileWidth, tileHeight);
+          }
+
+          if (_bg != "transparent") {
+            context.fillStyle = _bg;
+            context.globalCompositeOperation = "destination-over";
+            context.fillRect(0, 0, tileWidth, tileHeight);
+          }
+
+          this._ctx.drawImage(canvas, x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        } else {
+          // no colorizing, easy
+          this._ctx.drawImage(this._options.tileSet, tile[0], tile[1], tileWidth, tileHeight, x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+        }
+      }
+    };
+
+    _proto6.computeSize = function computeSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._options.tileWidth);
+      var height = Math.floor(availHeight / this._options.tileHeight);
+      return [width, height];
+    };
+
+    _proto6.computeFontSize = function computeFontSize() {
+      throw new Error("Tile backend does not understand font size");
+    };
+
+    _proto6._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      return [Math.floor(x / this._options.tileWidth), Math.floor(y / this._options.tileHeight)];
+    };
+
+    _proto6._updateSize = function _updateSize() {
+      var opts = this._options;
+      this._ctx.canvas.width = opts.width * opts.tileWidth;
+      this._ctx.canvas.height = opts.height * opts.tileHeight;
+      this._colorCanvas.width = opts.tileWidth;
+      this._colorCanvas.height = opts.tileHeight;
+    };
+
+    return Tile;
+  }(Canvas);
+
+  function fromString(str) {
+    var cached, r;
+
+    if (str in CACHE) {
+      cached = CACHE[str];
+    } else {
+      if (str.charAt(0) == "#") {
+        // hex rgb
+        var matched = str.match(/[0-9a-f]/gi) || [];
+        var values = matched.map(function (x) {
+          return parseInt(x, 16);
+        });
+
+        if (values.length == 3) {
+          cached = values.map(function (x) {
+            return x * 17;
+          });
+        } else {
+          for (var i = 0; i < 3; i++) {
+            values[i + 1] += 16 * values[i];
+            values.splice(i, 1);
+          }
+
+          cached = values;
+        }
+      } else if (r = str.match(/rgb\(([0-9, ]+)\)/i)) {
+        // decimal rgb
+        cached = r[1].split(/\s*,\s*/).map(function (x) {
+          return parseInt(x);
+        });
+      } else {
+        // html name
+        cached = [0, 0, 0];
+      }
+
+      CACHE[str] = cached;
+    }
+
+    return cached.slice();
+  }
+  /**
+   * Add two or more colors
+   */
+
+
+  function add(color1) {
+    var result = color1.slice();
+
+    for (var _len2 = arguments.length, colors = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+      colors[_key2 - 1] = arguments[_key2];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        result[i] += colors[j][i];
+      }
+    }
+
+    return result;
+  }
+  /**
+   * Add two or more colors, MODIFIES FIRST ARGUMENT
+   */
+
+
+  function add_(color1) {
+    for (var _len3 = arguments.length, colors = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
+      colors[_key3 - 1] = arguments[_key3];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        color1[i] += colors[j][i];
+      }
+    }
+
+    return color1;
+  }
+  /**
+   * Multiply (mix) two or more colors
+   */
+
+
+  function multiply(color1) {
+    var result = color1.slice();
+
+    for (var _len4 = arguments.length, colors = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
+      colors[_key4 - 1] = arguments[_key4];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        result[i] *= colors[j][i] / 255;
+      }
+
+      result[i] = Math.round(result[i]);
+    }
+
+    return result;
+  }
+  /**
+   * Multiply (mix) two or more colors, MODIFIES FIRST ARGUMENT
+   */
+
+
+  function multiply_(color1) {
+    for (var _len5 = arguments.length, colors = new Array(_len5 > 1 ? _len5 - 1 : 0), _key5 = 1; _key5 < _len5; _key5++) {
+      colors[_key5 - 1] = arguments[_key5];
+    }
+
+    for (var i = 0; i < 3; i++) {
+      for (var j = 0; j < colors.length; j++) {
+        color1[i] *= colors[j][i] / 255;
+      }
+
+      color1[i] = Math.round(color1[i]);
+    }
+
+    return color1;
+  }
+  /**
+   * Interpolate (blend) two colors with a given factor
+   */
+
+
+  function interpolate(color1, color2, factor) {
+    if (factor === void 0) {
+      factor = 0.5;
+    }
+
+    var result = color1.slice();
+
+    for (var i = 0; i < 3; i++) {
+      result[i] = Math.round(result[i] + factor * (color2[i] - color1[i]));
+    }
+
+    return result;
+  }
+
+  var lerp = interpolate;
+  /**
+   * Interpolate (blend) two colors with a given factor in HSL mode
+   */
+
+  function interpolateHSL(color1, color2, factor) {
+    if (factor === void 0) {
+      factor = 0.5;
+    }
+
+    var hsl1 = rgb2hsl(color1);
+    var hsl2 = rgb2hsl(color2);
+
+    for (var i = 0; i < 3; i++) {
+      hsl1[i] += factor * (hsl2[i] - hsl1[i]);
+    }
+
+    return hsl2rgb(hsl1);
+  }
+
+  var lerpHSL = interpolateHSL;
+  /**
+   * Create a new random color based on this one
+   * @param color
+   * @param diff Set of standard deviations
+   */
+
+  function randomize(color, diff) {
+    if (!(diff instanceof Array)) {
+      diff = Math.round(RNG$1.getNormal(0, diff));
+    }
+
+    var result = color.slice();
+
+    for (var i = 0; i < 3; i++) {
+      result[i] += diff instanceof Array ? Math.round(RNG$1.getNormal(0, diff[i])) : diff;
+    }
+
+    return result;
+  }
+  /**
+   * Converts an RGB color value to HSL. Expects 0..255 inputs, produces 0..1 outputs.
+   */
+
+
+  function rgb2hsl(color) {
+    var r = color[0] / 255;
+    var g = color[1] / 255;
+    var b = color[2] / 255;
+    var max = Math.max(r, g, b),
+        min = Math.min(r, g, b);
+    var h = 0,
+        s,
+        l = (max + min) / 2;
+
+    if (max == min) {
+      s = 0; // achromatic
+    } else {
+      var d = max - min;
+      s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
+
+      switch (max) {
+        case r:
+          h = (g - b) / d + (g < b ? 6 : 0);
+          break;
+
+        case g:
+          h = (b - r) / d + 2;
+          break;
+
+        case b:
+          h = (r - g) / d + 4;
+          break;
+      }
+
+      h /= 6;
+    }
+
+    return [h, s, l];
+  }
+
+  function hue2rgb(p, q, t) {
+    if (t < 0) t += 1;
+    if (t > 1) t -= 1;
+    if (t < 1 / 6) return p + (q - p) * 6 * t;
+    if (t < 1 / 2) return q;
+    if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
+    return p;
+  }
+  /**
+   * Converts an HSL color value to RGB. Expects 0..1 inputs, produces 0..255 outputs.
+   */
+
+
+  function hsl2rgb(color) {
+    var l = color[2];
+
+    if (color[1] == 0) {
+      l = Math.round(l * 255);
+      return [l, l, l];
+    } else {
+      var s = color[1];
+      var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+      var p = 2 * l - q;
+      var r = hue2rgb(p, q, color[0] + 1 / 3);
+      var g = hue2rgb(p, q, color[0]);
+      var b = hue2rgb(p, q, color[0] - 1 / 3);
+      return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
+    }
+  }
+
+  function toRGB(color) {
+    var clamped = color.map(function (x) {
+      return clamp(x, 0, 255);
+    });
+    return "rgb(" + clamped.join(",") + ")";
+  }
+
+  function toHex(color) {
+    var clamped = color.map(function (x) {
+      return clamp(x, 0, 255).toString(16).padStart(2, "0");
+    });
+    return "#" + clamped.join("");
+  }
+
+  var CACHE = {
+    "black": [0, 0, 0],
+    "navy": [0, 0, 128],
+    "darkblue": [0, 0, 139],
+    "mediumblue": [0, 0, 205],
+    "blue": [0, 0, 255],
+    "darkgreen": [0, 100, 0],
+    "green": [0, 128, 0],
+    "teal": [0, 128, 128],
+    "darkcyan": [0, 139, 139],
+    "deepskyblue": [0, 191, 255],
+    "darkturquoise": [0, 206, 209],
+    "mediumspringgreen": [0, 250, 154],
+    "lime": [0, 255, 0],
+    "springgreen": [0, 255, 127],
+    "aqua": [0, 255, 255],
+    "cyan": [0, 255, 255],
+    "midnightblue": [25, 25, 112],
+    "dodgerblue": [30, 144, 255],
+    "forestgreen": [34, 139, 34],
+    "seagreen": [46, 139, 87],
+    "darkslategray": [47, 79, 79],
+    "darkslategrey": [47, 79, 79],
+    "limegreen": [50, 205, 50],
+    "mediumseagreen": [60, 179, 113],
+    "turquoise": [64, 224, 208],
+    "royalblue": [65, 105, 225],
+    "steelblue": [70, 130, 180],
+    "darkslateblue": [72, 61, 139],
+    "mediumturquoise": [72, 209, 204],
+    "indigo": [75, 0, 130],
+    "darkolivegreen": [85, 107, 47],
+    "cadetblue": [95, 158, 160],
+    "cornflowerblue": [100, 149, 237],
+    "mediumaquamarine": [102, 205, 170],
+    "dimgray": [105, 105, 105],
+    "dimgrey": [105, 105, 105],
+    "slateblue": [106, 90, 205],
+    "olivedrab": [107, 142, 35],
+    "slategray": [112, 128, 144],
+    "slategrey": [112, 128, 144],
+    "lightslategray": [119, 136, 153],
+    "lightslategrey": [119, 136, 153],
+    "mediumslateblue": [123, 104, 238],
+    "lawngreen": [124, 252, 0],
+    "chartreuse": [127, 255, 0],
+    "aquamarine": [127, 255, 212],
+    "maroon": [128, 0, 0],
+    "purple": [128, 0, 128],
+    "olive": [128, 128, 0],
+    "gray": [128, 128, 128],
+    "grey": [128, 128, 128],
+    "skyblue": [135, 206, 235],
+    "lightskyblue": [135, 206, 250],
+    "blueviolet": [138, 43, 226],
+    "darkred": [139, 0, 0],
+    "darkmagenta": [139, 0, 139],
+    "saddlebrown": [139, 69, 19],
+    "darkseagreen": [143, 188, 143],
+    "lightgreen": [144, 238, 144],
+    "mediumpurple": [147, 112, 216],
+    "darkviolet": [148, 0, 211],
+    "palegreen": [152, 251, 152],
+    "darkorchid": [153, 50, 204],
+    "yellowgreen": [154, 205, 50],
+    "sienna": [160, 82, 45],
+    "brown": [165, 42, 42],
+    "darkgray": [169, 169, 169],
+    "darkgrey": [169, 169, 169],
+    "lightblue": [173, 216, 230],
+    "greenyellow": [173, 255, 47],
+    "paleturquoise": [175, 238, 238],
+    "lightsteelblue": [176, 196, 222],
+    "powderblue": [176, 224, 230],
+    "firebrick": [178, 34, 34],
+    "darkgoldenrod": [184, 134, 11],
+    "mediumorchid": [186, 85, 211],
+    "rosybrown": [188, 143, 143],
+    "darkkhaki": [189, 183, 107],
+    "silver": [192, 192, 192],
+    "mediumvioletred": [199, 21, 133],
+    "indianred": [205, 92, 92],
+    "peru": [205, 133, 63],
+    "chocolate": [210, 105, 30],
+    "tan": [210, 180, 140],
+    "lightgray": [211, 211, 211],
+    "lightgrey": [211, 211, 211],
+    "palevioletred": [216, 112, 147],
+    "thistle": [216, 191, 216],
+    "orchid": [218, 112, 214],
+    "goldenrod": [218, 165, 32],
+    "crimson": [220, 20, 60],
+    "gainsboro": [220, 220, 220],
+    "plum": [221, 160, 221],
+    "burlywood": [222, 184, 135],
+    "lightcyan": [224, 255, 255],
+    "lavender": [230, 230, 250],
+    "darksalmon": [233, 150, 122],
+    "violet": [238, 130, 238],
+    "palegoldenrod": [238, 232, 170],
+    "lightcoral": [240, 128, 128],
+    "khaki": [240, 230, 140],
+    "aliceblue": [240, 248, 255],
+    "honeydew": [240, 255, 240],
+    "azure": [240, 255, 255],
+    "sandybrown": [244, 164, 96],
+    "wheat": [245, 222, 179],
+    "beige": [245, 245, 220],
+    "whitesmoke": [245, 245, 245],
+    "mintcream": [245, 255, 250],
+    "ghostwhite": [248, 248, 255],
+    "salmon": [250, 128, 114],
+    "antiquewhite": [250, 235, 215],
+    "linen": [250, 240, 230],
+    "lightgoldenrodyellow": [250, 250, 210],
+    "oldlace": [253, 245, 230],
+    "red": [255, 0, 0],
+    "fuchsia": [255, 0, 255],
+    "magenta": [255, 0, 255],
+    "deeppink": [255, 20, 147],
+    "orangered": [255, 69, 0],
+    "tomato": [255, 99, 71],
+    "hotpink": [255, 105, 180],
+    "coral": [255, 127, 80],
+    "darkorange": [255, 140, 0],
+    "lightsalmon": [255, 160, 122],
+    "orange": [255, 165, 0],
+    "lightpink": [255, 182, 193],
+    "pink": [255, 192, 203],
+    "gold": [255, 215, 0],
+    "peachpuff": [255, 218, 185],
+    "navajowhite": [255, 222, 173],
+    "moccasin": [255, 228, 181],
+    "bisque": [255, 228, 196],
+    "mistyrose": [255, 228, 225],
+    "blanchedalmond": [255, 235, 205],
+    "papayawhip": [255, 239, 213],
+    "lavenderblush": [255, 240, 245],
+    "seashell": [255, 245, 238],
+    "cornsilk": [255, 248, 220],
+    "lemonchiffon": [255, 250, 205],
+    "floralwhite": [255, 250, 240],
+    "snow": [255, 250, 250],
+    "yellow": [255, 255, 0],
+    "lightyellow": [255, 255, 224],
+    "ivory": [255, 255, 240],
+    "white": [255, 255, 255]
+  };
+  var color =
+  /*#__PURE__*/
+  Object.freeze({
+    fromString: fromString,
+    add: add,
+    add_: add_,
+    multiply: multiply,
+    multiply_: multiply_,
+    interpolate: interpolate,
+    lerp: lerp,
+    interpolateHSL: interpolateHSL,
+    lerpHSL: lerpHSL,
+    randomize: randomize,
+    rgb2hsl: rgb2hsl,
+    hsl2rgb: hsl2rgb,
+    toRGB: toRGB,
+    toHex: toHex
+  });
+  /**
+   * @class Tile backend
+   * @private
+   */
+
+  var TileGL =
+  /*#__PURE__*/
+  function (_Backend2) {
+    _inheritsLoose(TileGL, _Backend2);
+
+    TileGL.isSupported = function isSupported() {
+      return !!document.createElement("canvas").getContext("webgl2", {
+        preserveDrawingBuffer: true
+      });
+    };
+
+    function TileGL() {
+      var _this5;
+
+      _this5 = _Backend2.call(this) || this;
+      _this5._uniforms = {};
+
+      try {
+        _this5._gl = _this5._initWebGL();
+      } catch (e) {
+        alert(e.message);
+      }
+
+      return _this5;
+    }
+
+    var _proto7 = TileGL.prototype;
+
+    _proto7.schedule = function schedule(cb) {
+      requestAnimationFrame(cb);
+    };
+
+    _proto7.getContainer = function getContainer() {
+      return this._gl.canvas;
+    };
+
+    _proto7.setOptions = function setOptions(opts) {
+      var _this6 = this;
+
+      _Backend2.prototype.setOptions.call(this, opts);
+
+      this._updateSize();
+
+      var tileSet = this._options.tileSet;
+
+      if (tileSet && "complete" in tileSet && !tileSet.complete) {
+        tileSet.addEventListener("load", function () {
+          return _this6._updateTexture(tileSet);
+        });
+      } else {
+        this._updateTexture(tileSet);
+      }
+    };
+
+    _proto7.draw = function draw(data, clearBefore) {
+      var gl = this._gl;
+      var opts = this._options;
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4];
+      var scissorY = gl.canvas.height - (y + 1) * opts.tileHeight;
+      gl.scissor(x * opts.tileWidth, scissorY, opts.tileWidth, opts.tileHeight);
+
+      if (clearBefore) {
+        if (opts.tileColorize) {
+          gl.clearColor(0, 0, 0, 0);
+        } else {
+          gl.clearColor.apply(gl, parseColor(bg));
+        }
+
+        gl.clear(gl.COLOR_BUFFER_BIT);
+      }
+
+      if (!ch) {
+        return;
+      }
+
+      var chars = [].concat(ch);
+      var bgs = [].concat(bg);
+      var fgs = [].concat(fg);
+      gl.uniform2fv(this._uniforms["targetPosRel"], [x, y]);
+
+      for (var i = 0; i < chars.length; i++) {
+        var tile = this._options.tileMap[chars[i]];
+
+        if (!tile) {
+          throw new Error("Char \"" + chars[i] + "\" not found in tileMap");
+        }
+
+        gl.uniform1f(this._uniforms["colorize"], opts.tileColorize ? 1 : 0);
+        gl.uniform2fv(this._uniforms["tilesetPosAbs"], tile);
+
+        if (opts.tileColorize) {
+          gl.uniform4fv(this._uniforms["tint"], parseColor(fgs[i]));
+          gl.uniform4fv(this._uniforms["bg"], parseColor(bgs[i]));
+        }
+
+        gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
+      }
+      /*
+      
+      
+              for (let i=0;i<chars.length;i++) {
+                  
+                  if (this._options.tileColorize) { // apply colorization
+                      let canvas = this._colorCanvas;
+                      let context = canvas.getContext("2d") as CanvasRenderingContext2D;
+                      context.globalCompositeOperation = "source-over";
+                      context.clearRect(0, 0, tileWidth, tileHeight);
+      
+                      let fg = fgs[i];
+                      let bg = bgs[i];
+      
+                      context.drawImage(
+                          this._options.tileSet!,
+                          tile[0], tile[1], tileWidth, tileHeight,
+                          0, 0, tileWidth, tileHeight
+                      );
+      
+                      if (fg != "transparent") {
+                          context.fillStyle = fg;
+                          context.globalCompositeOperation = "source-atop";
+                          context.fillRect(0, 0, tileWidth, tileHeight);
+                      }
+      
+                      if (bg != "transparent") {
+                          context.fillStyle = bg;
+                          context.globalCompositeOperation = "destination-over";
+                          context.fillRect(0, 0, tileWidth, tileHeight);
+                      }
+      
+                      this._ctx.drawImage(canvas, x*tileWidth, y*tileHeight, tileWidth, tileHeight);
+                  } else { // no colorizing, easy
+                      this._ctx.drawImage(
+                          this._options.tileSet!,
+                          tile[0], tile[1], tileWidth, tileHeight,
+                          x*tileWidth, y*tileHeight, tileWidth, tileHeight
+                      );
+                  }
+              }
+      
+      */
+
+    };
+
+    _proto7.clear = function clear() {
+      var gl = this._gl;
+      gl.clearColor.apply(gl, parseColor(this._options.bg));
+      gl.scissor(0, 0, gl.canvas.width, gl.canvas.height);
+      gl.clear(gl.COLOR_BUFFER_BIT);
+    };
+
+    _proto7.computeSize = function computeSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._options.tileWidth);
+      var height = Math.floor(availHeight / this._options.tileHeight);
+      return [width, height];
+    };
+
+    _proto7.computeFontSize = function computeFontSize() {
+      throw new Error("Tile backend does not understand font size");
+    };
+
+    _proto7.eventToPosition = function eventToPosition(x, y) {
+      var canvas = this._gl.canvas;
+      var rect = canvas.getBoundingClientRect();
+      x -= rect.left;
+      y -= rect.top;
+      x *= canvas.width / rect.width;
+      y *= canvas.height / rect.height;
+
+      if (x < 0 || y < 0 || x >= canvas.width || y >= canvas.height) {
+        return [-1, -1];
+      }
+
+      return this._normalizedEventToPosition(x, y);
+    };
+
+    _proto7._initWebGL = function _initWebGL() {
+      var _this7 = this;
+
+      var gl = document.createElement("canvas").getContext("webgl2", {
+        preserveDrawingBuffer: true
+      });
+      window.gl = gl;
+      var program = createProgram(gl, VS, FS);
+      gl.useProgram(program);
+      createQuad(gl);
+      UNIFORMS.forEach(function (name) {
+        return _this7._uniforms[name] = gl.getUniformLocation(program, name);
+      });
+      this._program = program;
+      gl.enable(gl.BLEND);
+      gl.blendFuncSeparate(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
+      gl.enable(gl.SCISSOR_TEST);
+      return gl;
+    };
+
+    _proto7._normalizedEventToPosition = function _normalizedEventToPosition(x, y) {
+      return [Math.floor(x / this._options.tileWidth), Math.floor(y / this._options.tileHeight)];
+    };
+
+    _proto7._updateSize = function _updateSize() {
+      var gl = this._gl;
+      var opts = this._options;
+      var canvasSize = [opts.width * opts.tileWidth, opts.height * opts.tileHeight];
+      gl.canvas.width = canvasSize[0];
+      gl.canvas.height = canvasSize[1];
+      gl.viewport(0, 0, canvasSize[0], canvasSize[1]);
+      gl.uniform2fv(this._uniforms["tileSize"], [opts.tileWidth, opts.tileHeight]);
+      gl.uniform2fv(this._uniforms["targetSize"], canvasSize);
+    };
+
+    _proto7._updateTexture = function _updateTexture(tileSet) {
+      createTexture(this._gl, tileSet);
+    };
+
+    return TileGL;
+  }(Backend);
+
+  var UNIFORMS = ["targetPosRel", "tilesetPosAbs", "tileSize", "targetSize", "colorize", "bg", "tint"];
+  var VS = "\n#version 300 es\n\nin vec2 tilePosRel;\nout vec2 tilesetPosPx;\n\nuniform vec2 tilesetPosAbs;\nuniform vec2 tileSize;\nuniform vec2 targetSize;\nuniform vec2 targetPosRel;\n\nvoid main() {\n\tvec2 targetPosPx = (targetPosRel + tilePosRel) * tileSize;\n\tvec2 targetPosNdc = ((targetPosPx / targetSize)-0.5)*2.0;\n\ttargetPosNdc.y *= -1.0;\n\n\tgl_Position = vec4(targetPosNdc, 0.0, 1.0);\n\ttilesetPosPx = tilesetPosAbs + tilePosRel * tileSize;\n}".trim();
+  var FS = "\n#version 300 es\nprecision highp float;\n\nin vec2 tilesetPosPx;\nout vec4 fragColor;\nuniform sampler2D image;\nuniform bool colorize;\nuniform vec4 bg;\nuniform vec4 tint;\n\nvoid main() {\n\tfragColor = vec4(0, 0, 0, 1);\n\n\tvec4 texel = texelFetch(image, ivec2(tilesetPosPx), 0);\n\n\tif (colorize) {\n\t\ttexel.rgb = tint.a * tint.rgb + (1.0-tint.a) * texel.rgb;\n\t\tfragColor.rgb = texel.a*texel.rgb + (1.0-texel.a)*bg.rgb;\n\t\tfragColor.a = texel.a + (1.0-texel.a)*bg.a;\n\t} else {\n\t\tfragColor = texel;\n\t}\n}".trim();
+
+  function createProgram(gl, vss, fss) {
+    var vs = gl.createShader(gl.VERTEX_SHADER);
+    gl.shaderSource(vs, vss);
+    gl.compileShader(vs);
+
+    if (!gl.getShaderParameter(vs, gl.COMPILE_STATUS)) {
+      throw new Error(gl.getShaderInfoLog(vs) || "");
+    }
+
+    var fs = gl.createShader(gl.FRAGMENT_SHADER);
+    gl.shaderSource(fs, fss);
+    gl.compileShader(fs);
+
+    if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS)) {
+      throw new Error(gl.getShaderInfoLog(fs) || "");
+    }
+
+    var p = gl.createProgram();
+    gl.attachShader(p, vs);
+    gl.attachShader(p, fs);
+    gl.linkProgram(p);
+
+    if (!gl.getProgramParameter(p, gl.LINK_STATUS)) {
+      throw new Error(gl.getProgramInfoLog(p) || "");
+    }
+
+    return p;
+  }
+
+  function createQuad(gl) {
+    var pos = new Float32Array([0, 0, 1, 0, 0, 1, 1, 1]);
+    var buf = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, buf);
+    gl.bufferData(gl.ARRAY_BUFFER, pos, gl.STATIC_DRAW);
+    gl.enableVertexAttribArray(0);
+    gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
+  }
+
+  function createTexture(gl, data) {
+    var t = gl.createTexture();
+    gl.bindTexture(gl.TEXTURE_2D, t);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
+    gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, 0);
+    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, data);
+    return t;
+  }
+
+  var colorCache = {};
+
+  function parseColor(color) {
+    if (!(color in colorCache)) {
+      var parsed;
+
+      if (color == "transparent") {
+        parsed = [0, 0, 0, 0];
+      } else if (color.indexOf("rgba") > -1) {
+        parsed = (color.match(/[\d.]+/g) || []).map(Number);
+
+        for (var i = 0; i < 3; i++) {
+          parsed[i] = parsed[i] / 255;
+        }
+      } else {
+        parsed = fromString(color).map(function ($) {
+          return $ / 255;
+        });
+        parsed.push(1);
+      }
+
+      colorCache[color] = parsed;
+    }
+
+    return colorCache[color];
+  }
+
+  function clearToAnsi(bg) {
+    return "\x1B[0;48;5;" + termcolor(bg) + "m\x1B[2J";
+  }
+
+  function colorToAnsi(fg, bg) {
+    return "\x1B[0;38;5;" + termcolor(fg) + ";48;5;" + termcolor(bg) + "m";
+  }
+
+  function positionToAnsi(x, y) {
+    return "\x1B[" + (y + 1) + ";" + (x + 1) + "H";
+  }
+
+  function termcolor(color) {
+    var SRC_COLORS = 256.0;
+    var DST_COLORS = 6.0;
+    var COLOR_RATIO = DST_COLORS / SRC_COLORS;
+    var rgb = fromString(color);
+    var r = Math.floor(rgb[0] * COLOR_RATIO);
+    var g = Math.floor(rgb[1] * COLOR_RATIO);
+    var b = Math.floor(rgb[2] * COLOR_RATIO);
+    return r * 36 + g * 6 + b * 1 + 16;
+  }
+
+  var Term =
+  /*#__PURE__*/
+  function (_Backend3) {
+    _inheritsLoose(Term, _Backend3);
+
+    function Term() {
+      var _this8;
+
+      _this8 = _Backend3.call(this) || this;
+      _this8._offset = [0, 0];
+      _this8._cursor = [-1, -1];
+      _this8._lastColor = "";
+      return _this8;
+    }
+
+    var _proto8 = Term.prototype;
+
+    _proto8.schedule = function schedule(cb) {
+      setTimeout(cb, 1000 / 60);
+    };
+
+    _proto8.setOptions = function setOptions(options) {
+      _Backend3.prototype.setOptions.call(this, options);
+
+      var size = [options.width, options.height];
+      var avail = this.computeSize();
+      this._offset = avail.map(function (val, index) {
+        return Math.floor((val - size[index]) / 2);
+      });
+    };
+
+    _proto8.clear = function clear() {
+      process.stdout.write(clearToAnsi(this._options.bg));
+    };
+
+    _proto8.draw = function draw(data, clearBefore) {
+      // determine where to draw what with what colors
+      var x = data[0],
+          y = data[1],
+          ch = data[2],
+          fg = data[3],
+          bg = data[4]; // determine if we need to move the terminal cursor
+
+      var dx = this._offset[0] + x;
+      var dy = this._offset[1] + y;
+      var size = this.computeSize();
+
+      if (dx < 0 || dx >= size[0]) {
+        return;
+      }
+
+      if (dy < 0 || dy >= size[1]) {
+        return;
+      }
+
+      if (dx !== this._cursor[0] || dy !== this._cursor[1]) {
+        process.stdout.write(positionToAnsi(dx, dy));
+        this._cursor[0] = dx;
+        this._cursor[1] = dy;
+      } // terminals automatically clear, but if we're clearing when we're
+      // not otherwise provided with a character, just use a space instead
+
+
+      if (clearBefore) {
+        if (!ch) {
+          ch = " ";
+        }
+      } // if we're not clearing and not provided with a character, do nothing
+
+
+      if (!ch) {
+        return;
+      } // determine if we need to change colors
+
+
+      var newColor = colorToAnsi(fg, bg);
+
+      if (newColor !== this._lastColor) {
+        process.stdout.write(newColor);
+        this._lastColor = newColor;
+      } // write the provided symbol to the display
+
+
+      var chars = [].concat(ch);
+      process.stdout.write(chars[0]); // update our position, given that we wrote a character
+
+      this._cursor[0]++;
+
+      if (this._cursor[0] >= size[0]) {
+        this._cursor[0] = 0;
+        this._cursor[1]++;
+      }
+    };
+
+    _proto8.computeFontSize = function computeFontSize() {
+      throw new Error("Terminal backend has no notion of font size");
+    };
+
+    _proto8.eventToPosition = function eventToPosition(x, y) {
+      return [x, y];
+    };
+
+    _proto8.computeSize = function computeSize() {
+      return [process.stdout.columns, process.stdout.rows];
+    };
+
+    return Term;
+  }(Backend);
+  /**
+   * @namespace
+   * Contains text tokenization and breaking routines
+   */
+
+
+  var RE_COLORS = /%([bc]){([^}]*)}/g; // token types
+
+  var TYPE_TEXT = 0;
+  var TYPE_NEWLINE = 1;
+  var TYPE_FG = 2;
+  var TYPE_BG = 3;
+  /**
+   * Measure size of a resulting text block
+   */
+
+  function measure(str, maxWidth) {
+    var result = {
+      width: 0,
+      height: 1
+    };
+    var tokens = tokenize(str, maxWidth);
+    var lineWidth = 0;
+
+    for (var i = 0; i < tokens.length; i++) {
+      var token = tokens[i];
+
+      switch (token.type) {
+        case TYPE_TEXT:
+          lineWidth += token.value.length;
+          break;
+
+        case TYPE_NEWLINE:
+          result.height++;
+          result.width = Math.max(result.width, lineWidth);
+          lineWidth = 0;
+          break;
+      }
+    }
+
+    result.width = Math.max(result.width, lineWidth);
+    return result;
+  }
+  /**
+   * Convert string to a series of a formatting commands
+   */
+
+
+  function tokenize(str, maxWidth) {
+    var result = [];
+    /* first tokenization pass - split texts and color formatting commands */
+
+    var offset = 0;
+    str.replace(RE_COLORS, function (match, type, name, index) {
+      /* string before */
+      var part = str.substring(offset, index);
+
+      if (part.length) {
+        result.push({
+          type: TYPE_TEXT,
+          value: part
+        });
+      }
+      /* color command */
+
+
+      result.push({
+        type: type == "c" ? TYPE_FG : TYPE_BG,
+        value: name.trim()
+      });
+      offset = index + match.length;
+      return "";
+    });
+    /* last remaining part */
+
+    var part = str.substring(offset);
+
+    if (part.length) {
+      result.push({
+        type: TYPE_TEXT,
+        value: part
+      });
+    }
+
+    return breakLines(result, maxWidth);
+  }
+  /* insert line breaks into first-pass tokenized data */
+
+
+  function breakLines(tokens, maxWidth) {
+    if (!maxWidth) {
+      maxWidth = Infinity;
+    }
+
+    var i = 0;
+    var lineLength = 0;
+    var lastTokenWithSpace = -1;
+
+    while (i < tokens.length) {
+      /* take all text tokens, remove space, apply linebreaks */
+      var token = tokens[i];
+
+      if (token.type == TYPE_NEWLINE) {
+        /* reset */
+        lineLength = 0;
+        lastTokenWithSpace = -1;
+      }
+
+      if (token.type != TYPE_TEXT) {
+        /* skip non-text tokens */
+        i++;
+        continue;
+      }
+      /* remove spaces at the beginning of line */
+
+
+      while (lineLength == 0 && token.value.charAt(0) == " ") {
+        token.value = token.value.substring(1);
+      }
+      /* forced newline? insert two new tokens after this one */
+
+
+      var _index2 = token.value.indexOf("\n");
+
+      if (_index2 != -1) {
+        token.value = breakInsideToken(tokens, i, _index2, true);
+        /* if there are spaces at the end, we must remove them (we do not want the line too long) */
+
+        var arr = token.value.split("");
+
+        while (arr.length && arr[arr.length - 1] == " ") {
+          arr.pop();
+        }
+
+        token.value = arr.join("");
+      }
+      /* token degenerated? */
+
+
+      if (!token.value.length) {
+        tokens.splice(i, 1);
+        continue;
+      }
+
+      if (lineLength + token.value.length > maxWidth) {
+        /* line too long, find a suitable breaking spot */
+
+        /* is it possible to break within this token? */
+        var _index3 = -1;
+
+        while (1) {
+          var nextIndex = token.value.indexOf(" ", _index3 + 1);
+
+          if (nextIndex == -1) {
+            break;
+          }
+
+          if (lineLength + nextIndex > maxWidth) {
+            break;
+          }
+
+          _index3 = nextIndex;
+        }
+
+        if (_index3 != -1) {
+          /* break at space within this one */
+          token.value = breakInsideToken(tokens, i, _index3, true);
+        } else if (lastTokenWithSpace != -1) {
+          /* is there a previous token where a break can occur? */
+          var _token = tokens[lastTokenWithSpace];
+
+          var breakIndex = _token.value.lastIndexOf(" ");
+
+          _token.value = breakInsideToken(tokens, lastTokenWithSpace, breakIndex, true);
+          i = lastTokenWithSpace;
+        } else {
+          /* force break in this token */
+          token.value = breakInsideToken(tokens, i, maxWidth - lineLength, false);
+        }
+      } else {
+        /* line not long, continue */
+        lineLength += token.value.length;
+
+        if (token.value.indexOf(" ") != -1) {
+          lastTokenWithSpace = i;
+        }
+      }
+
+      i++;
+      /* advance to next token */
+    }
+
+    tokens.push({
+      type: TYPE_NEWLINE
+    });
+    /* insert fake newline to fix the last text line */
+
+    /* remove trailing space from text tokens before newlines */
+
+    var lastTextToken = null;
+
+    for (var _i = 0; _i < tokens.length; _i++) {
+      var _token2 = tokens[_i];
+
+      switch (_token2.type) {
+        case TYPE_TEXT:
+          lastTextToken = _token2;
+          break;
+
+        case TYPE_NEWLINE:
+          if (lastTextToken) {
+            /* remove trailing space */
+            var _arr = lastTextToken.value.split("");
+
+            while (_arr.length && _arr[_arr.length - 1] == " ") {
+              _arr.pop();
+            }
+
+            lastTextToken.value = _arr.join("");
+          }
+
+          lastTextToken = null;
+          break;
+      }
+    }
+
+    tokens.pop();
+    /* remove fake token */
+
+    return tokens;
+  }
+  /**
+   * Create new tokens and insert them into the stream
+   * @param {object[]} tokens
+   * @param {int} tokenIndex Token being processed
+   * @param {int} breakIndex Index within current token's value
+   * @param {bool} removeBreakChar Do we want to remove the breaking character?
+   * @returns {string} remaining unbroken token value
+   */
+
+
+  function breakInsideToken(tokens, tokenIndex, breakIndex, removeBreakChar) {
+    var newBreakToken = {
+      type: TYPE_NEWLINE
+    };
+    var newTextToken = {
+      type: TYPE_TEXT,
+      value: tokens[tokenIndex].value.substring(breakIndex + (removeBreakChar ? 1 : 0))
+    };
+    tokens.splice(tokenIndex + 1, 0, newBreakToken, newTextToken);
+    return tokens[tokenIndex].value.substring(0, breakIndex);
+  }
+
+  var text =
+  /*#__PURE__*/
+  Object.freeze({
+    TYPE_TEXT: TYPE_TEXT,
+    TYPE_NEWLINE: TYPE_NEWLINE,
+    TYPE_FG: TYPE_FG,
+    TYPE_BG: TYPE_BG,
+    measure: measure,
+    tokenize: tokenize
+  });
+  /** Default with for display and map generators */
+
+  var DEFAULT_WIDTH = 80;
+  /** Default height for display and map generators */
+
+  var DEFAULT_HEIGHT = 25;
+  var DIRS = {
+    4: [[0, -1], [1, 0], [0, 1], [-1, 0]],
+    8: [[0, -1], [1, -1], [1, 0], [1, 1], [0, 1], [-1, 1], [-1, 0], [-1, -1]],
+    6: [[-1, -1], [1, -1], [2, 0], [1, 1], [-1, 1], [-2, 0]]
+  };
+  var KEYS = {
+    /** Cancel key. */
+    VK_CANCEL: 3,
+
+    /** Help key. */
+    VK_HELP: 6,
+
+    /** Backspace key. */
+    VK_BACK_SPACE: 8,
+
+    /** Tab key. */
+    VK_TAB: 9,
+
+    /** 5 key on Numpad when NumLock is unlocked. Or on Mac, clear key which is positioned at NumLock key. */
+    VK_CLEAR: 12,
+
+    /** Return/enter key on the main keyboard. */
+    VK_RETURN: 13,
+
+    /** Reserved, but not used. */
+    VK_ENTER: 14,
+
+    /** Shift key. */
+    VK_SHIFT: 16,
+
+    /** Control key. */
+    VK_CONTROL: 17,
+
+    /** Alt (Option on Mac) key. */
+    VK_ALT: 18,
+
+    /** Pause key. */
+    VK_PAUSE: 19,
+
+    /** Caps lock. */
+    VK_CAPS_LOCK: 20,
+
+    /** Escape key. */
+    VK_ESCAPE: 27,
+
+    /** Space bar. */
+    VK_SPACE: 32,
+
+    /** Page Up key. */
+    VK_PAGE_UP: 33,
+
+    /** Page Down key. */
+    VK_PAGE_DOWN: 34,
+
+    /** End key. */
+    VK_END: 35,
+
+    /** Home key. */
+    VK_HOME: 36,
+
+    /** Left arrow. */
+    VK_LEFT: 37,
+
+    /** Up arrow. */
+    VK_UP: 38,
+
+    /** Right arrow. */
+    VK_RIGHT: 39,
+
+    /** Down arrow. */
+    VK_DOWN: 40,
+
+    /** Print Screen key. */
+    VK_PRINTSCREEN: 44,
+
+    /** Ins(ert) key. */
+    VK_INSERT: 45,
+
+    /** Del(ete) key. */
+    VK_DELETE: 46,
+
+    /***/
+    VK_0: 48,
+
+    /***/
+    VK_1: 49,
+
+    /***/
+    VK_2: 50,
+
+    /***/
+    VK_3: 51,
+
+    /***/
+    VK_4: 52,
+
+    /***/
+    VK_5: 53,
+
+    /***/
+    VK_6: 54,
+
+    /***/
+    VK_7: 55,
+
+    /***/
+    VK_8: 56,
+
+    /***/
+    VK_9: 57,
+
+    /** Colon (:) key. Requires Gecko 15.0 */
+    VK_COLON: 58,
+
+    /** Semicolon (;) key. */
+    VK_SEMICOLON: 59,
+
+    /** Less-than (<) key. Requires Gecko 15.0 */
+    VK_LESS_THAN: 60,
+
+    /** Equals (=) key. */
+    VK_EQUALS: 61,
+
+    /** Greater-than (>) key. Requires Gecko 15.0 */
+    VK_GREATER_THAN: 62,
+
+    /** Question mark (?) key. Requires Gecko 15.0 */
+    VK_QUESTION_MARK: 63,
+
+    /** Atmark (@) key. Requires Gecko 15.0 */
+    VK_AT: 64,
+
+    /***/
+    VK_A: 65,
+
+    /***/
+    VK_B: 66,
+
+    /***/
+    VK_C: 67,
+
+    /***/
+    VK_D: 68,
+
+    /***/
+    VK_E: 69,
+
+    /***/
+    VK_F: 70,
+
+    /***/
+    VK_G: 71,
+
+    /***/
+    VK_H: 72,
+
+    /***/
+    VK_I: 73,
+
+    /***/
+    VK_J: 74,
+
+    /***/
+    VK_K: 75,
+
+    /***/
+    VK_L: 76,
+
+    /***/
+    VK_M: 77,
+
+    /***/
+    VK_N: 78,
+
+    /***/
+    VK_O: 79,
+
+    /***/
+    VK_P: 80,
+
+    /***/
+    VK_Q: 81,
+
+    /***/
+    VK_R: 82,
+
+    /***/
+    VK_S: 83,
+
+    /***/
+    VK_T: 84,
+
+    /***/
+    VK_U: 85,
+
+    /***/
+    VK_V: 86,
+
+    /***/
+    VK_W: 87,
+
+    /***/
+    VK_X: 88,
+
+    /***/
+    VK_Y: 89,
+
+    /***/
+    VK_Z: 90,
+
+    /***/
+    VK_CONTEXT_MENU: 93,
+
+    /** 0 on the numeric keypad. */
+    VK_NUMPAD0: 96,
+
+    /** 1 on the numeric keypad. */
+    VK_NUMPAD1: 97,
+
+    /** 2 on the numeric keypad. */
+    VK_NUMPAD2: 98,
+
+    /** 3 on the numeric keypad. */
+    VK_NUMPAD3: 99,
+
+    /** 4 on the numeric keypad. */
+    VK_NUMPAD4: 100,
+
+    /** 5 on the numeric keypad. */
+    VK_NUMPAD5: 101,
+
+    /** 6 on the numeric keypad. */
+    VK_NUMPAD6: 102,
+
+    /** 7 on the numeric keypad. */
+    VK_NUMPAD7: 103,
+
+    /** 8 on the numeric keypad. */
+    VK_NUMPAD8: 104,
+
+    /** 9 on the numeric keypad. */
+    VK_NUMPAD9: 105,
+
+    /** * on the numeric keypad. */
+    VK_MULTIPLY: 106,
+
+    /** + on the numeric keypad. */
+    VK_ADD: 107,
+
+    /***/
+    VK_SEPARATOR: 108,
+
+    /** - on the numeric keypad. */
+    VK_SUBTRACT: 109,
+
+    /** Decimal point on the numeric keypad. */
+    VK_DECIMAL: 110,
+
+    /** / on the numeric keypad. */
+    VK_DIVIDE: 111,
+
+    /** F1 key. */
+    VK_F1: 112,
+
+    /** F2 key. */
+    VK_F2: 113,
+
+    /** F3 key. */
+    VK_F3: 114,
+
+    /** F4 key. */
+    VK_F4: 115,
+
+    /** F5 key. */
+    VK_F5: 116,
+
+    /** F6 key. */
+    VK_F6: 117,
+
+    /** F7 key. */
+    VK_F7: 118,
+
+    /** F8 key. */
+    VK_F8: 119,
+
+    /** F9 key. */
+    VK_F9: 120,
+
+    /** F10 key. */
+    VK_F10: 121,
+
+    /** F11 key. */
+    VK_F11: 122,
+
+    /** F12 key. */
+    VK_F12: 123,
+
+    /** F13 key. */
+    VK_F13: 124,
+
+    /** F14 key. */
+    VK_F14: 125,
+
+    /** F15 key. */
+    VK_F15: 126,
+
+    /** F16 key. */
+    VK_F16: 127,
+
+    /** F17 key. */
+    VK_F17: 128,
+
+    /** F18 key. */
+    VK_F18: 129,
+
+    /** F19 key. */
+    VK_F19: 130,
+
+    /** F20 key. */
+    VK_F20: 131,
+
+    /** F21 key. */
+    VK_F21: 132,
+
+    /** F22 key. */
+    VK_F22: 133,
+
+    /** F23 key. */
+    VK_F23: 134,
+
+    /** F24 key. */
+    VK_F24: 135,
+
+    /** Num Lock key. */
+    VK_NUM_LOCK: 144,
+
+    /** Scroll Lock key. */
+    VK_SCROLL_LOCK: 145,
+
+    /** Circumflex (^) key. Requires Gecko 15.0 */
+    VK_CIRCUMFLEX: 160,
+
+    /** Exclamation (!) key. Requires Gecko 15.0 */
+    VK_EXCLAMATION: 161,
+
+    /** Double quote () key. Requires Gecko 15.0 */
+    VK_DOUBLE_QUOTE: 162,
+
+    /** Hash (#) key. Requires Gecko 15.0 */
+    VK_HASH: 163,
+
+    /** Dollar sign ($) key. Requires Gecko 15.0 */
+    VK_DOLLAR: 164,
+
+    /** Percent (%) key. Requires Gecko 15.0 */
+    VK_PERCENT: 165,
+
+    /** Ampersand (&) key. Requires Gecko 15.0 */
+    VK_AMPERSAND: 166,
+
+    /** Underscore (_) key. Requires Gecko 15.0 */
+    VK_UNDERSCORE: 167,
+
+    /** Open parenthesis (() key. Requires Gecko 15.0 */
+    VK_OPEN_PAREN: 168,
+
+    /** Close parenthesis ()) key. Requires Gecko 15.0 */
+    VK_CLOSE_PAREN: 169,
+
+    /* Asterisk (*) key. Requires Gecko 15.0 */
+    VK_ASTERISK: 170,
+
+    /** Plus (+) key. Requires Gecko 15.0 */
+    VK_PLUS: 171,
+
+    /** Pipe (|) key. Requires Gecko 15.0 */
+    VK_PIPE: 172,
+
+    /** Hyphen-US/docs/Minus (-) key. Requires Gecko 15.0 */
+    VK_HYPHEN_MINUS: 173,
+
+    /** Open curly bracket ({) key. Requires Gecko 15.0 */
+    VK_OPEN_CURLY_BRACKET: 174,
+
+    /** Close curly bracket (}) key. Requires Gecko 15.0 */
+    VK_CLOSE_CURLY_BRACKET: 175,
+
+    /** Tilde (~) key. Requires Gecko 15.0 */
+    VK_TILDE: 176,
+
+    /** Comma (,) key. */
+    VK_COMMA: 188,
+
+    /** Period (.) key. */
+    VK_PERIOD: 190,
+
+    /** Slash (/) key. */
+    VK_SLASH: 191,
+
+    /** Back tick (`) key. */
+    VK_BACK_QUOTE: 192,
+
+    /** Open square bracket ([) key. */
+    VK_OPEN_BRACKET: 219,
+
+    /** Back slash (\) key. */
+    VK_BACK_SLASH: 220,
+
+    /** Close square bracket (]) key. */
+    VK_CLOSE_BRACKET: 221,
+
+    /** Quote (''') key. */
+    VK_QUOTE: 222,
+
+    /** Meta key on Linux, Command key on Mac. */
+    VK_META: 224,
+
+    /** AltGr key on Linux. Requires Gecko 15.0 */
+    VK_ALTGR: 225,
+
+    /** Windows logo key on Windows. Or Super or Hyper key on Linux. Requires Gecko 15.0 */
+    VK_WIN: 91,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_KANA: 21,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_HANGUL: 21,
+
+    /** 英数 key on Japanese Mac keyboard. Requires Gecko 15.0 */
+    VK_EISU: 22,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_JUNJA: 23,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_FINAL: 24,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_HANJA: 25,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_KANJI: 25,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_CONVERT: 28,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_NONCONVERT: 29,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_ACCEPT: 30,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_MODECHANGE: 31,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_SELECT: 41,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_PRINT: 42,
+
+    /** Linux support for this keycode was added in Gecko 4.0. */
+    VK_EXECUTE: 43,
+
+    /** Linux support for this keycode was added in Gecko 4.0.	 */
+    VK_SLEEP: 95
+  };
+  var BACKENDS = {
+    "hex": Hex,
+    "rect": Rect,
+    "tile": Tile,
+    "tile-gl": TileGL,
+    "term": Term
+  };
+  var DEFAULT_OPTIONS = {
+    width: DEFAULT_WIDTH,
+    height: DEFAULT_HEIGHT,
+    transpose: false,
+    layout: "rect",
+    fontSize: 15,
+    spacing: 1,
+    border: 0,
+    forceSquareRatio: false,
+    fontFamily: "monospace",
+    fontStyle: "",
+    fg: "#ccc",
+    bg: "#000",
+    tileWidth: 32,
+    tileHeight: 32,
+    tileMap: {},
+    tileSet: null,
+    tileColorize: false
+  };
+  /**
+   * @class Visual map display
+   */
+
+  var Display =
+  /*#__PURE__*/
+  function () {
+    function Display(options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._data = {};
+      this._dirty = false; // false = nothing, true = all, object = dirty cells
+
+      this._options = {};
+      options = Object.assign({}, DEFAULT_OPTIONS, options);
+      this.setOptions(options);
+      this.DEBUG = this.DEBUG.bind(this);
+      this._tick = this._tick.bind(this);
+
+      this._backend.schedule(this._tick);
+    }
+    /**
+     * Debug helper, ideal as a map generator callback. Always bound to this.
+     * @param {int} x
+     * @param {int} y
+     * @param {int} what
+     */
+
+
+    var _proto9 = Display.prototype;
+
+    _proto9.DEBUG = function DEBUG(x, y, what) {
+      var colors = [this._options.bg, this._options.fg];
+      this.draw(x, y, null, null, colors[what % colors.length]);
+    };
+    /**
+     * Clear the whole display (cover it with background color)
+     */
+
+
+    _proto9.clear = function clear() {
+      this._data = {};
+      this._dirty = true;
+    };
+    /**
+     * @see ROT.Display
+     */
+
+
+    _proto9.setOptions = function setOptions(options) {
+      Object.assign(this._options, options);
+
+      if (options.width || options.height || options.fontSize || options.fontFamily || options.spacing || options.layout) {
+        if (options.layout) {
+          var ctor = BACKENDS[options.layout];
+          this._backend = new ctor();
+        }
+
+        this._backend.setOptions(this._options);
+
+        this._dirty = true;
+      }
+
+      return this;
+    };
+    /**
+     * Returns currently set options
+     */
+
+
+    _proto9.getOptions = function getOptions() {
+      return this._options;
+    };
+    /**
+     * Returns the DOM node of this display
+     */
+
+
+    _proto9.getContainer = function getContainer() {
+      return this._backend.getContainer();
+    };
+    /**
+     * Compute the maximum width/height to fit into a set of given constraints
+     * @param {int} availWidth Maximum allowed pixel width
+     * @param {int} availHeight Maximum allowed pixel height
+     * @returns {int[2]} cellWidth,cellHeight
+     */
+
+
+    _proto9.computeSize = function computeSize(availWidth, availHeight) {
+      return this._backend.computeSize(availWidth, availHeight);
+    };
+    /**
+     * Compute the maximum font size to fit into a set of given constraints
+     * @param {int} availWidth Maximum allowed pixel width
+     * @param {int} availHeight Maximum allowed pixel height
+     * @returns {int} fontSize
+     */
+
+
+    _proto9.computeFontSize = function computeFontSize(availWidth, availHeight) {
+      return this._backend.computeFontSize(availWidth, availHeight);
+    };
+
+    _proto9.computeTileSize = function computeTileSize(availWidth, availHeight) {
+      var width = Math.floor(availWidth / this._options.width);
+      var height = Math.floor(availHeight / this._options.height);
+      return [width, height];
+    };
+    /**
+     * Convert a DOM event (mouse or touch) to map coordinates. Uses first touch for multi-touch.
+     * @param {Event} e event
+     * @returns {int[2]} -1 for values outside of the canvas
+     */
+
+
+    _proto9.eventToPosition = function eventToPosition(e) {
+      var x, y;
+
+      if ("touches" in e) {
+        x = e.touches[0].clientX;
+        y = e.touches[0].clientY;
+      } else {
+        x = e.clientX;
+        y = e.clientY;
+      }
+
+      return this._backend.eventToPosition(x, y);
+    };
+    /**
+     * @param {int} x
+     * @param {int} y
+     * @param {string || string[]} ch One or more chars (will be overlapping themselves)
+     * @param {string} [fg] foreground color
+     * @param {string} [bg] background color
+     */
+
+
+    _proto9.draw = function draw(x, y, ch, fg, bg) {
+      if (!fg) {
+        fg = this._options.fg;
+      }
+
+      if (!bg) {
+        bg = this._options.bg;
+      }
+
+      var key = x + "," + y;
+      this._data[key] = [x, y, ch, fg, bg];
+
+      if (this._dirty === true) {
+        return;
+      } // will already redraw everything 
+
+
+      if (!this._dirty) {
+        this._dirty = {};
+      } // first!
+
+
+      this._dirty[key] = true;
+    };
+    /**
+     * Draws a text at given position. Optionally wraps at a maximum length. Currently does not work with hex layout.
+     * @param {int} x
+     * @param {int} y
+     * @param {string} text May contain color/background format specifiers, %c{name}/%b{name}, both optional. %c{}/%b{} resets to default.
+     * @param {int} [maxWidth] wrap at what width?
+     * @returns {int} lines drawn
+     */
+
+
+    _proto9.drawText = function drawText(x, y, text, maxWidth) {
+      var fg = null;
+      var bg = null;
+      var cx = x;
+      var cy = y;
+      var lines = 1;
+
+      if (!maxWidth) {
+        maxWidth = this._options.width - x;
+      }
+
+      var tokens = tokenize(text, maxWidth);
+
+      while (tokens.length) {
+        // interpret tokenized opcode stream
+        var token = tokens.shift();
+
+        switch (token.type) {
+          case TYPE_TEXT:
+            var isSpace = false,
+                isPrevSpace = false,
+                isFullWidth = false,
+                isPrevFullWidth = false;
+
+            for (var i = 0; i < token.value.length; i++) {
+              var cc = token.value.charCodeAt(i);
+              var c = token.value.charAt(i); // Assign to `true` when the current char is full-width.
+
+              isFullWidth = cc > 0xff00 && cc < 0xff61 || cc > 0xffdc && cc < 0xffe8 || cc > 0xffee; // Current char is space, whatever full-width or half-width both are OK.
+
+              isSpace = c.charCodeAt(0) == 0x20 || c.charCodeAt(0) == 0x3000; // The previous char is full-width and
+              // current char is nether half-width nor a space.
+
+              if (isPrevFullWidth && !isFullWidth && !isSpace) {
+                cx++;
+              } // add an extra position
+              // The current char is full-width and
+              // the previous char is not a space.
+
+
+              if (isFullWidth && !isPrevSpace) {
+                cx++;
+              } // add an extra position
+
+
+              this.draw(cx++, cy, c, fg, bg);
+              isPrevSpace = isSpace;
+              isPrevFullWidth = isFullWidth;
+            }
+
+            break;
+
+          case TYPE_FG:
+            fg = token.value || null;
+            break;
+
+          case TYPE_BG:
+            bg = token.value || null;
+            break;
+
+          case TYPE_NEWLINE:
+            cx = x;
+            cy++;
+            lines++;
+            break;
+        }
+      }
+
+      return lines;
+    };
+    /**
+     * Timer tick: update dirty parts
+     */
+
+
+    _proto9._tick = function _tick() {
+      this._backend.schedule(this._tick);
+
+      if (!this._dirty) {
+        return;
+      }
+
+      if (this._dirty === true) {
+        // draw all
+        this._backend.clear();
+
+        for (var id in this._data) {
+          this._draw(id, false);
+        } // redraw cached data 
+
+      } else {
+        // draw only dirty 
+        for (var key in this._dirty) {
+          this._draw(key, true);
+        }
+      }
+
+      this._dirty = false;
+    };
+    /**
+     * @param {string} key What to draw
+     * @param {bool} clearBefore Is it necessary to clean before?
+     */
+
+
+    _proto9._draw = function _draw(key, clearBefore) {
+      var data = this._data[key];
+
+      if (data[4] != this._options.bg) {
+        clearBefore = true;
+      }
+
+      this._backend.draw(data, clearBefore);
+    };
+
+    return Display;
+  }();
+
+  Display.Rect = Rect;
+  Display.Hex = Hex;
+  Display.Tile = Tile;
+  Display.TileGL = TileGL;
+  Display.Term = Term;
+  /**
+   * @class (Markov process)-based string generator.
+   * Copied from a <a href="http://www.roguebasin.roguelikedevelopment.org/index.php?title=Names_from_a_high_order_Markov_Process_and_a_simplified_Katz_back-off_scheme">RogueBasin article</a>.
+   * Offers configurable order and prior.
+   */
+
+  var StringGenerator =
+  /*#__PURE__*/
+  function () {
+    function StringGenerator(options) {
+      this._options = {
+        words: false,
+        order: 3,
+        prior: 0.001
+      };
+      Object.assign(this._options, options);
+      this._boundary = String.fromCharCode(0);
+      this._suffix = this._boundary;
+      this._prefix = [];
+
+      for (var i = 0; i < this._options.order; i++) {
+        this._prefix.push(this._boundary);
+      }
+
+      this._priorValues = {};
+      this._priorValues[this._boundary] = this._options.prior;
+      this._data = {};
+    }
+    /**
+     * Remove all learning data
+     */
+
+
+    var _proto10 = StringGenerator.prototype;
+
+    _proto10.clear = function clear() {
+      this._data = {};
+      this._priorValues = {};
+    };
+    /**
+     * @returns {string} Generated string
+     */
+
+
+    _proto10.generate = function generate() {
+      var result = [this._sample(this._prefix)];
+
+      while (result[result.length - 1] != this._boundary) {
+        result.push(this._sample(result));
+      }
+
+      return this._join(result.slice(0, -1));
+    };
+    /**
+     * Observe (learn) a string from a training set
+     */
+
+
+    _proto10.observe = function observe(string) {
+      var tokens = this._split(string);
+
+      for (var i = 0; i < tokens.length; i++) {
+        this._priorValues[tokens[i]] = this._options.prior;
+      }
+
+      tokens = this._prefix.concat(tokens).concat(this._suffix);
+      /* add boundary symbols */
+
+      for (var _i2 = this._options.order; _i2 < tokens.length; _i2++) {
+        var context = tokens.slice(_i2 - this._options.order, _i2);
+        var event = tokens[_i2];
+
+        for (var j = 0; j < context.length; j++) {
+          var subcontext = context.slice(j);
+
+          this._observeEvent(subcontext, event);
+        }
+      }
+    };
+
+    _proto10.getStats = function getStats() {
+      var parts = [];
+      var priorCount = Object.keys(this._priorValues).length;
+      priorCount--; // boundary
+
+      parts.push("distinct samples: " + priorCount);
+      var dataCount = Object.keys(this._data).length;
+      var eventCount = 0;
+
+      for (var p in this._data) {
+        eventCount += Object.keys(this._data[p]).length;
+      }
+
+      parts.push("dictionary size (contexts): " + dataCount);
+      parts.push("dictionary size (events): " + eventCount);
+      return parts.join(", ");
+    };
+    /**
+     * @param {string}
+     * @returns {string[]}
+     */
+
+
+    _proto10._split = function _split(str) {
+      return str.split(this._options.words ? /\s+/ : "");
+    };
+    /**
+     * @param {string[]}
+     * @returns {string}
+     */
+
+
+    _proto10._join = function _join(arr) {
+      return arr.join(this._options.words ? " " : "");
+    };
+    /**
+     * @param {string[]} context
+     * @param {string} event
+     */
+
+
+    _proto10._observeEvent = function _observeEvent(context, event) {
+      var key = this._join(context);
+
+      if (!(key in this._data)) {
+        this._data[key] = {};
+      }
+
+      var data = this._data[key];
+
+      if (!(event in data)) {
+        data[event] = 0;
+      }
+
+      data[event]++;
+    };
+    /**
+     * @param {string[]}
+     * @returns {string}
+     */
+
+
+    _proto10._sample = function _sample(context) {
+      context = this._backoff(context);
+
+      var key = this._join(context);
+
+      var data = this._data[key];
+      var available = {};
+
+      if (this._options.prior) {
+        for (var event in this._priorValues) {
+          available[event] = this._priorValues[event];
+        }
+
+        for (var _event in data) {
+          available[_event] += data[_event];
+        }
+      } else {
+        available = data;
+      }
+
+      return RNG$1.getWeightedValue(available);
+    };
+    /**
+     * @param {string[]}
+     * @returns {string[]}
+     */
+
+
+    _proto10._backoff = function _backoff(context) {
+      if (context.length > this._options.order) {
+        context = context.slice(-this._options.order);
+      } else if (context.length < this._options.order) {
+        context = this._prefix.slice(0, this._options.order - context.length).concat(context);
+      }
+
+      while (!(this._join(context) in this._data) && context.length > 0) {
+        context = context.slice(1);
+      }
+
+      return context;
+    };
+
+    return StringGenerator;
+  }();
+
+  var EventQueue =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Generic event queue: stores events and retrieves them based on their time
+     */
+    function EventQueue() {
+      this._time = 0;
+      this._events = [];
+      this._eventTimes = [];
+    }
+    /**
+     * @returns {number} Elapsed time
+     */
+
+
+    var _proto11 = EventQueue.prototype;
+
+    _proto11.getTime = function getTime() {
+      return this._time;
+    };
+    /**
+     * Clear all scheduled events
+     */
+
+
+    _proto11.clear = function clear() {
+      this._events = [];
+      this._eventTimes = [];
+      return this;
+    };
+    /**
+     * @param {?} event
+     * @param {number} time
+     */
+
+
+    _proto11.add = function add(event, time) {
+      var index = this._events.length;
+
+      for (var i = 0; i < this._eventTimes.length; i++) {
+        if (this._eventTimes[i] > time) {
+          index = i;
+          break;
+        }
+      }
+
+      this._events.splice(index, 0, event);
+
+      this._eventTimes.splice(index, 0, time);
+    };
+    /**
+     * Locates the nearest event, advances time if necessary. Returns that event and removes it from the queue.
+     * @returns {? || null} The event previously added by addEvent, null if no event available
+     */
+
+
+    _proto11.get = function get() {
+      if (!this._events.length) {
+        return null;
+      }
+
+      var time = this._eventTimes.splice(0, 1)[0];
+
+      if (time > 0) {
+        /* advance */
+        this._time += time;
+
+        for (var i = 0; i < this._eventTimes.length; i++) {
+          this._eventTimes[i] -= time;
+        }
+      }
+
+      return this._events.splice(0, 1)[0];
+    };
+    /**
+     * Get the time associated with the given event
+     * @param {?} event
+     * @returns {number} time
+     */
+
+
+    _proto11.getEventTime = function getEventTime(event) {
+      var index = this._events.indexOf(event);
+
+      if (index == -1) {
+        return undefined;
+      }
+
+      return this._eventTimes[index];
+    };
+    /**
+     * Remove an event from the queue
+     * @param {?} event
+     * @returns {bool} success?
+     */
+
+
+    _proto11.remove = function remove(event) {
+      var index = this._events.indexOf(event);
+
+      if (index == -1) {
+        return false;
+      }
+
+      this._remove(index);
+
+      return true;
+    };
+
+    /**
+     * Remove an event from the queue
+     * @param {int} index
+     */
+    _proto11._remove = function _remove(index) {
+      this._events.splice(index, 1);
+
+      this._eventTimes.splice(index, 1);
+    };
+
+    return EventQueue;
+  }();
+
+  var Scheduler =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Abstract scheduler
+     */
+    function Scheduler() {
+      this._queue = new EventQueue();
+      this._repeat = [];
+      this._current = null;
+    }
+    /**
+     * @see ROT.EventQueue#getTime
+     */
+
+
+    var _proto12 = Scheduler.prototype;
+
+    _proto12.getTime = function getTime() {
+      return this._queue.getTime();
+    };
+    /**
+     * @param {?} item
+     * @param {bool} repeat
+     */
+
+
+    _proto12.add = function add(item, repeat) {
+      if (repeat) {
+        this._repeat.push(item);
+      }
+
+      return this;
+    };
+    /**
+     * Get the time the given item is scheduled for
+     * @param {?} item
+     * @returns {number} time
+     */
+
+
+    _proto12.getTimeOf = function getTimeOf(item) {
+      return this._queue.getEventTime(item);
+    };
+    /**
+     * Clear all items
+     */
+
+
+    _proto12.clear = function clear() {
+      this._queue.clear();
+
+      this._repeat = [];
+      this._current = null;
+      return this;
+    };
+    /**
+     * Remove a previously added item
+     * @param {?} item
+     * @returns {bool} successful?
+     */
+
+
+    _proto12.remove = function remove(item) {
+      var result = this._queue.remove(item);
+
+      var index = this._repeat.indexOf(item);
+
+      if (index != -1) {
+        this._repeat.splice(index, 1);
+      }
+
+      if (this._current == item) {
+        this._current = null;
+      }
+
+      return result;
+    };
+    /**
+     * Schedule next item
+     * @returns {?}
+     */
+
+
+    _proto12.next = function next() {
+      this._current = this._queue.get();
+      return this._current;
+    };
+
+    return Scheduler;
+  }();
+  /**
+   * @class Simple fair scheduler (round-robin style)
+   */
+
+
+  var Simple =
+  /*#__PURE__*/
+  function (_Scheduler) {
+    _inheritsLoose(Simple, _Scheduler);
+
+    function Simple() {
+      return _Scheduler.apply(this, arguments) || this;
+    }
+
+    var _proto13 = Simple.prototype;
+
+    _proto13.add = function add(item, repeat) {
+      this._queue.add(item, 0);
+
+      return _Scheduler.prototype.add.call(this, item, repeat);
+    };
+
+    _proto13.next = function next() {
+      if (this._current !== null && this._repeat.indexOf(this._current) != -1) {
+        this._queue.add(this._current, 0);
+      }
+
+      return _Scheduler.prototype.next.call(this);
+    };
+
+    return Simple;
+  }(Scheduler);
+  /**
+   * @class Speed-based scheduler
+   */
+
+
+  var Speed =
+  /*#__PURE__*/
+  function (_Scheduler2) {
+    _inheritsLoose(Speed, _Scheduler2);
+
+    function Speed() {
+      return _Scheduler2.apply(this, arguments) || this;
+    }
+
+    var _proto14 = Speed.prototype;
+
+    /**
+     * @param {object} item anything with "getSpeed" method
+     * @param {bool} repeat
+     * @param {number} [time=1/item.getSpeed()]
+     * @see ROT.Scheduler#add
+     */
+    _proto14.add = function add(item, repeat, time) {
+      this._queue.add(item, time !== undefined ? time : 1 / item.getSpeed());
+
+      return _Scheduler2.prototype.add.call(this, item, repeat);
+    };
+    /**
+     * @see ROT.Scheduler#next
+     */
+
+
+    _proto14.next = function next() {
+      if (this._current && this._repeat.indexOf(this._current) != -1) {
+        this._queue.add(this._current, 1 / this._current.getSpeed());
+      }
+
+      return _Scheduler2.prototype.next.call(this);
+    };
+
+    return Speed;
+  }(Scheduler);
+  /**
+   * @class Action-based scheduler
+   * @augments ROT.Scheduler
+   */
+
+
+  var Action =
+  /*#__PURE__*/
+  function (_Scheduler3) {
+    _inheritsLoose(Action, _Scheduler3);
+
+    function Action() {
+      var _this9;
+
+      _this9 = _Scheduler3.call(this) || this;
+      _this9._defaultDuration = 1;
+      /* for newly added */
+
+      _this9._duration = _this9._defaultDuration;
+      /* for this._current */
+
+      return _this9;
+    }
+    /**
+     * @param {object} item
+     * @param {bool} repeat
+     * @param {number} [time=1]
+     * @see ROT.Scheduler#add
+     */
+
+
+    var _proto15 = Action.prototype;
+
+    _proto15.add = function add(item, repeat, time) {
+      this._queue.add(item, time || this._defaultDuration);
+
+      return _Scheduler3.prototype.add.call(this, item, repeat);
+    };
+
+    _proto15.clear = function clear() {
+      this._duration = this._defaultDuration;
+      return _Scheduler3.prototype.clear.call(this);
+    };
+
+    _proto15.remove = function remove(item) {
+      if (item == this._current) {
+        this._duration = this._defaultDuration;
+      }
+
+      return _Scheduler3.prototype.remove.call(this, item);
+    };
+    /**
+     * @see ROT.Scheduler#next
+     */
+
+
+    _proto15.next = function next() {
+      if (this._current !== null && this._repeat.indexOf(this._current) != -1) {
+        this._queue.add(this._current, this._duration || this._defaultDuration);
+
+        this._duration = this._defaultDuration;
+      }
+
+      return _Scheduler3.prototype.next.call(this);
+    };
+    /**
+     * Set duration for the active item
+     */
+
+
+    _proto15.setDuration = function setDuration(time) {
+      if (this._current) {
+        this._duration = time;
+      }
+
+      return this;
+    };
+
+    return Action;
+  }(Scheduler);
+
+  var index = {
+    Simple: Simple,
+    Speed: Speed,
+    Action: Action
+  };
+
+  var FOV =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Abstract FOV algorithm
+     * @param {function} lightPassesCallback Does the light pass through x,y?
+     * @param {object} [options]
+     * @param {int} [options.topology=8] 4/6/8
+     */
+    function FOV(lightPassesCallback, options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._lightPasses = lightPassesCallback;
+      this._options = Object.assign({
+        topology: 8
+      }, options);
+    }
+    /**
+     * Return all neighbors in a concentric ring
+     * @param {int} cx center-x
+     * @param {int} cy center-y
+     * @param {int} r range
+     */
+
+
+    var _proto16 = FOV.prototype;
+
+    _proto16._getCircle = function _getCircle(cx, cy, r) {
+      var result = [];
+      var dirs, countFactor, startOffset;
+
+      switch (this._options.topology) {
+        case 4:
+          countFactor = 1;
+          startOffset = [0, 1];
+          dirs = [DIRS[8][7], DIRS[8][1], DIRS[8][3], DIRS[8][5]];
+          break;
+
+        case 6:
+          dirs = DIRS[6];
+          countFactor = 1;
+          startOffset = [-1, 1];
+          break;
+
+        case 8:
+          dirs = DIRS[4];
+          countFactor = 2;
+          startOffset = [-1, 1];
+          break;
+
+        default:
+          throw new Error("Incorrect topology for FOV computation");
+          break;
+      }
+      /* starting neighbor */
+
+
+      var x = cx + startOffset[0] * r;
+      var y = cy + startOffset[1] * r;
+      /* circle */
+
+      for (var i = 0; i < dirs.length; i++) {
+        for (var j = 0; j < r * countFactor; j++) {
+          result.push([x, y]);
+          x += dirs[i][0];
+          y += dirs[i][1];
+        }
+      }
+
+      return result;
+    };
+
+    return FOV;
+  }();
+  /**
+   * @class Discrete shadowcasting algorithm. Obsoleted by Precise shadowcasting.
+   * @augments ROT.FOV
+   */
+
+
+  var DiscreteShadowcasting =
+  /*#__PURE__*/
+  function (_FOV) {
+    _inheritsLoose(DiscreteShadowcasting, _FOV);
+
+    function DiscreteShadowcasting() {
+      return _FOV.apply(this, arguments) || this;
+    }
+
+    var _proto17 = DiscreteShadowcasting.prototype;
+
+    _proto17.compute = function compute(x, y, R, callback) {
+      /* this place is always visible */
+      callback(x, y, 0, 1);
+      /* standing in a dark place. FIXME is this a good idea?  */
+
+      if (!this._lightPasses(x, y)) {
+        return;
+      }
+      /* start and end angles */
+
+
+      var DATA = [];
+      var A, B, cx, cy, blocks;
+      /* analyze surrounding cells in concentric rings, starting from the center */
+
+      for (var r = 1; r <= R; r++) {
+        var neighbors = this._getCircle(x, y, r);
+
+        var angle = 360 / neighbors.length;
+
+        for (var i = 0; i < neighbors.length; i++) {
+          cx = neighbors[i][0];
+          cy = neighbors[i][1];
+          A = angle * (i - 0.5);
+          B = A + angle;
+          blocks = !this._lightPasses(cx, cy);
+
+          if (this._visibleCoords(Math.floor(A), Math.ceil(B), blocks, DATA)) {
+            callback(cx, cy, r, 1);
+          }
+
+          if (DATA.length == 2 && DATA[0] == 0 && DATA[1] == 360) {
+            return;
+          }
+          /* cutoff? */
+
+        }
+        /* for all cells in this ring */
+
+      }
+      /* for all rings */
+
+    };
+    /**
+     * @param {int} A start angle
+     * @param {int} B end angle
+     * @param {bool} blocks Does current cell block visibility?
+     * @param {int[][]} DATA shadowed angle pairs
+     */
+
+
+    _proto17._visibleCoords = function _visibleCoords(A, B, blocks, DATA) {
+      if (A < 0) {
+        var v1 = this._visibleCoords(0, B, blocks, DATA);
+
+        var v2 = this._visibleCoords(360 + A, 360, blocks, DATA);
+
+        return v1 || v2;
+      }
+
+      var index = 0;
+
+      while (index < DATA.length && DATA[index] < A) {
+        index++;
+      }
+
+      if (index == DATA.length) {
+        /* completely new shadow */
+        if (blocks) {
+          DATA.push(A, B);
+        }
+
+        return true;
+      }
+
+      var count = 0;
+
+      if (index % 2) {
+        /* this shadow starts in an existing shadow, or within its ending boundary */
+        while (index < DATA.length && DATA[index] < B) {
+          index++;
+          count++;
+        }
+
+        if (count == 0) {
+          return false;
+        }
+
+        if (blocks) {
+          if (count % 2) {
+            DATA.splice(index - count, count, B);
+          } else {
+            DATA.splice(index - count, count);
+          }
+        }
+
+        return true;
+      } else {
+        /* this shadow starts outside an existing shadow, or within a starting boundary */
+        while (index < DATA.length && DATA[index] < B) {
+          index++;
+          count++;
+        }
+        /* visible when outside an existing shadow, or when overlapping */
+
+
+        if (A == DATA[index - count] && count == 1) {
+          return false;
+        }
+
+        if (blocks) {
+          if (count % 2) {
+            DATA.splice(index - count, count, A);
+          } else {
+            DATA.splice(index - count, count, A, B);
+          }
+        }
+
+        return true;
+      }
+    };
+
+    return DiscreteShadowcasting;
+  }(FOV);
+  /**
+   * @class Precise shadowcasting algorithm
+   * @augments ROT.FOV
+   */
+
+
+  var PreciseShadowcasting =
+  /*#__PURE__*/
+  function (_FOV2) {
+    _inheritsLoose(PreciseShadowcasting, _FOV2);
+
+    function PreciseShadowcasting() {
+      return _FOV2.apply(this, arguments) || this;
+    }
+
+    var _proto18 = PreciseShadowcasting.prototype;
+
+    _proto18.compute = function compute(x, y, R, callback) {
+      /* this place is always visible */
+      callback(x, y, 0, 1);
+      /* standing in a dark place. FIXME is this a good idea?  */
+
+      if (!this._lightPasses(x, y)) {
+        return;
+      }
+      /* list of all shadows */
+
+
+      var SHADOWS = [];
+      var cx, cy, blocks, A1, A2, visibility;
+      /* analyze surrounding cells in concentric rings, starting from the center */
+
+      for (var r = 1; r <= R; r++) {
+        var neighbors = this._getCircle(x, y, r);
+
+        var neighborCount = neighbors.length;
+
+        for (var i = 0; i < neighborCount; i++) {
+          cx = neighbors[i][0];
+          cy = neighbors[i][1];
+          /* shift half-an-angle backwards to maintain consistency of 0-th cells */
+
+          A1 = [i ? 2 * i - 1 : 2 * neighborCount - 1, 2 * neighborCount];
+          A2 = [2 * i + 1, 2 * neighborCount];
+          blocks = !this._lightPasses(cx, cy);
+          visibility = this._checkVisibility(A1, A2, blocks, SHADOWS);
+
+          if (visibility) {
+            callback(cx, cy, r, visibility);
+          }
+
+          if (SHADOWS.length == 2 && SHADOWS[0][0] == 0 && SHADOWS[1][0] == SHADOWS[1][1]) {
+            return;
+          }
+          /* cutoff? */
+
+        }
+        /* for all cells in this ring */
+
+      }
+      /* for all rings */
+
+    };
+    /**
+     * @param {int[2]} A1 arc start
+     * @param {int[2]} A2 arc end
+     * @param {bool} blocks Does current arc block visibility?
+     * @param {int[][]} SHADOWS list of active shadows
+     */
+
+
+    _proto18._checkVisibility = function _checkVisibility(A1, A2, blocks, SHADOWS) {
+      if (A1[0] > A2[0]) {
+        /* split into two sub-arcs */
+        var v1 = this._checkVisibility(A1, [A1[1], A1[1]], blocks, SHADOWS);
+
+        var v2 = this._checkVisibility([0, 1], A2, blocks, SHADOWS);
+
+        return (v1 + v2) / 2;
+      }
+      /* index1: first shadow >= A1 */
+
+
+      var index1 = 0,
+          edge1 = false;
+
+      while (index1 < SHADOWS.length) {
+        var old = SHADOWS[index1];
+        var diff = old[0] * A1[1] - A1[0] * old[1];
+
+        if (diff >= 0) {
+          /* old >= A1 */
+          if (diff == 0 && !(index1 % 2)) {
+            edge1 = true;
+          }
+
+          break;
+        }
+
+        index1++;
+      }
+      /* index2: last shadow <= A2 */
+
+
+      var index2 = SHADOWS.length,
+          edge2 = false;
+
+      while (index2--) {
+        var _old = SHADOWS[index2];
+
+        var _diff = A2[0] * _old[1] - _old[0] * A2[1];
+
+        if (_diff >= 0) {
+          /* old <= A2 */
+          if (_diff == 0 && index2 % 2) {
+            edge2 = true;
+          }
+
+          break;
+        }
+      }
+
+      var visible = true;
+
+      if (index1 == index2 && (edge1 || edge2)) {
+        /* subset of existing shadow, one of the edges match */
+        visible = false;
+      } else if (edge1 && edge2 && index1 + 1 == index2 && index2 % 2) {
+        /* completely equivalent with existing shadow */
+        visible = false;
+      } else if (index1 > index2 && index1 % 2) {
+        /* subset of existing shadow, not touching */
+        visible = false;
+      }
+
+      if (!visible) {
+        return 0;
+      }
+      /* fast case: not visible */
+
+
+      var visibleLength;
+      /* compute the length of visible arc, adjust list of shadows (if blocking) */
+
+      var remove = index2 - index1 + 1;
+
+      if (remove % 2) {
+        if (index1 % 2) {
+          /* first edge within existing shadow, second outside */
+          var P = SHADOWS[index1];
+          visibleLength = (A2[0] * P[1] - P[0] * A2[1]) / (P[1] * A2[1]);
+
+          if (blocks) {
+            SHADOWS.splice(index1, remove, A2);
+          }
+        } else {
+          /* second edge within existing shadow, first outside */
+          var _P = SHADOWS[index2];
+          visibleLength = (_P[0] * A1[1] - A1[0] * _P[1]) / (A1[1] * _P[1]);
+
+          if (blocks) {
+            SHADOWS.splice(index1, remove, A1);
+          }
+        }
+      } else {
+        if (index1 % 2) {
+          /* both edges within existing shadows */
+          var P1 = SHADOWS[index1];
+          var P2 = SHADOWS[index2];
+          visibleLength = (P2[0] * P1[1] - P1[0] * P2[1]) / (P1[1] * P2[1]);
+
+          if (blocks) {
+            SHADOWS.splice(index1, remove);
+          }
+        } else {
+          /* both edges outside existing shadows */
+          if (blocks) {
+            SHADOWS.splice(index1, remove, A1, A2);
+          }
+
+          return 1;
+          /* whole arc visible! */
+        }
+      }
+
+      var arcLength = (A2[0] * A1[1] - A1[0] * A2[1]) / (A1[1] * A2[1]);
+      return visibleLength / arcLength;
+    };
+
+    return PreciseShadowcasting;
+  }(FOV);
+  /** Octants used for translating recursive shadowcasting offsets */
+
+
+  var OCTANTS = [[-1, 0, 0, 1], [0, -1, 1, 0], [0, -1, -1, 0], [-1, 0, 0, -1], [1, 0, 0, -1], [0, 1, -1, 0], [0, 1, 1, 0], [1, 0, 0, 1]];
+  /**
+   * @class Recursive shadowcasting algorithm
+   * Currently only supports 4/8 topologies, not hexagonal.
+   * Based on Peter Harkins' implementation of Björn Bergström's algorithm described here: http://www.roguebasin.com/index.php?title=FOV_using_recursive_shadowcasting
+   * @augments ROT.FOV
+   */
+
+  var RecursiveShadowcasting =
+  /*#__PURE__*/
+  function (_FOV3) {
+    _inheritsLoose(RecursiveShadowcasting, _FOV3);
+
+    function RecursiveShadowcasting() {
+      return _FOV3.apply(this, arguments) || this;
+    }
+
+    var _proto19 = RecursiveShadowcasting.prototype;
+
+    /**
+     * Compute visibility for a 360-degree circle
+     * @param {int} x
+     * @param {int} y
+     * @param {int} R Maximum visibility radius
+     * @param {function} callback
+     */
+    _proto19.compute = function compute(x, y, R, callback) {
+      //You can always see your own tile
+      callback(x, y, 0, 1);
+
+      for (var i = 0; i < OCTANTS.length; i++) {
+        this._renderOctant(x, y, OCTANTS[i], R, callback);
+      }
+    };
+    /**
+     * Compute visibility for a 180-degree arc
+     * @param {int} x
+     * @param {int} y
+     * @param {int} R Maximum visibility radius
+     * @param {int} dir Direction to look in (expressed in a ROT.DIRS value);
+     * @param {function} callback
+     */
+
+
+    _proto19.compute180 = function compute180(x, y, R, dir, callback) {
+      //You can always see your own tile
+      callback(x, y, 0, 1);
+      var previousOctant = (dir - 1 + 8) % 8; //Need to retrieve the previous octant to render a full 180 degrees
+
+      var nextPreviousOctant = (dir - 2 + 8) % 8; //Need to retrieve the previous two octants to render a full 180 degrees
+
+      var nextOctant = (dir + 1 + 8) % 8; //Need to grab to next octant to render a full 180 degrees
+
+      this._renderOctant(x, y, OCTANTS[nextPreviousOctant], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[previousOctant], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[dir], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[nextOctant], R, callback);
+    };
+
+    /**
+     * Compute visibility for a 90-degree arc
+     * @param {int} x
+     * @param {int} y
+     * @param {int} R Maximum visibility radius
+     * @param {int} dir Direction to look in (expressed in a ROT.DIRS value);
+     * @param {function} callback
+     */
+    _proto19.compute90 = function compute90(x, y, R, dir, callback) {
+      //You can always see your own tile
+      callback(x, y, 0, 1);
+      var previousOctant = (dir - 1 + 8) % 8; //Need to retrieve the previous octant to render a full 90 degrees
+
+      this._renderOctant(x, y, OCTANTS[dir], R, callback);
+
+      this._renderOctant(x, y, OCTANTS[previousOctant], R, callback);
+    };
+    /**
+     * Render one octant (45-degree arc) of the viewshed
+     * @param {int} x
+     * @param {int} y
+     * @param {int} octant Octant to be rendered
+     * @param {int} R Maximum visibility radius
+     * @param {function} callback
+     */
+
+
+    _proto19._renderOctant = function _renderOctant(x, y, octant, R, callback) {
+      //Radius incremented by 1 to provide same coverage area as other shadowcasting radiuses
+      this._castVisibility(x, y, 1, 1.0, 0.0, R + 1, octant[0], octant[1], octant[2], octant[3], callback);
+    };
+    /**
+     * Actually calculates the visibility
+     * @param {int} startX The starting X coordinate
+     * @param {int} startY The starting Y coordinate
+     * @param {int} row The row to render
+     * @param {float} visSlopeStart The slope to start at
+     * @param {float} visSlopeEnd The slope to end at
+     * @param {int} radius The radius to reach out to
+     * @param {int} xx
+     * @param {int} xy
+     * @param {int} yx
+     * @param {int} yy
+     * @param {function} callback The callback to use when we hit a block that is visible
+     */
+
+
+    _proto19._castVisibility = function _castVisibility(startX, startY, row, visSlopeStart, visSlopeEnd, radius, xx, xy, yx, yy, callback) {
+      if (visSlopeStart < visSlopeEnd) {
+        return;
+      }
+
+      for (var i = row; i <= radius; i++) {
+        var dx = -i - 1;
+        var dy = -i;
+        var blocked = false;
+        var newStart = 0; //'Row' could be column, names here assume octant 0 and would be flipped for half the octants
+
+        while (dx <= 0) {
+          dx += 1; //Translate from relative coordinates to map coordinates
+
+          var mapX = startX + dx * xx + dy * xy;
+          var mapY = startY + dx * yx + dy * yy; //Range of the row
+
+          var slopeStart = (dx - 0.5) / (dy + 0.5);
+          var slopeEnd = (dx + 0.5) / (dy - 0.5); //Ignore if not yet at left edge of Octant
+
+          if (slopeEnd > visSlopeStart) {
+            continue;
+          } //Done if past right edge
+
+
+          if (slopeStart < visSlopeEnd) {
+            break;
+          } //If it's in range, it's visible
+
+
+          if (dx * dx + dy * dy < radius * radius) {
+            callback(mapX, mapY, i, 1);
+          }
+
+          if (!blocked) {
+            //If tile is a blocking tile, cast around it
+            if (!this._lightPasses(mapX, mapY) && i < radius) {
+              blocked = true;
+
+              this._castVisibility(startX, startY, i + 1, visSlopeStart, slopeStart, radius, xx, xy, yx, yy, callback);
+
+              newStart = slopeEnd;
+            }
+          } else {
+            //Keep narrowing if scanning across a block
+            if (!this._lightPasses(mapX, mapY)) {
+              newStart = slopeEnd;
+              continue;
+            } //Block has ended
+
+
+            blocked = false;
+            visSlopeStart = newStart;
+          }
+        }
+
+        if (blocked) {
+          break;
+        }
+      }
+    };
+
+    return RecursiveShadowcasting;
+  }(FOV);
+
+  var index$1 = {
+    DiscreteShadowcasting: DiscreteShadowcasting,
+    PreciseShadowcasting: PreciseShadowcasting,
+    RecursiveShadowcasting: RecursiveShadowcasting
+  };
+
+  var Map =
+  /*#__PURE__*/
+  function () {
+    /**
+     * @class Base map generator
+     * @param {int} [width=ROT.DEFAULT_WIDTH]
+     * @param {int} [height=ROT.DEFAULT_HEIGHT]
+     */
+    function Map(width, height) {
+      if (width === void 0) {
+        width = DEFAULT_WIDTH;
+      }
+
+      if (height === void 0) {
+        height = DEFAULT_HEIGHT;
+      }
+
+      this._width = width;
+      this._height = height;
+    }
+
+    var _proto20 = Map.prototype;
+
+    _proto20._fillMap = function _fillMap(value) {
+      var map = [];
+
+      for (var i = 0; i < this._width; i++) {
+        map.push([]);
+
+        for (var j = 0; j < this._height; j++) {
+          map[i].push(value);
+        }
+      }
+
+      return map;
+    };
+
+    return Map;
+  }();
+  /**
+   * @class Simple empty rectangular room
+   * @augments ROT.Map
+   */
+
+
+  var Arena =
+  /*#__PURE__*/
+  function (_Map) {
+    _inheritsLoose(Arena, _Map);
+
+    function Arena() {
+      return _Map.apply(this, arguments) || this;
+    }
+
+    var _proto21 = Arena.prototype;
+
+    _proto21.create = function create(callback) {
+      var w = this._width - 1;
+      var h = this._height - 1;
+
+      for (var i = 0; i <= w; i++) {
+        for (var j = 0; j <= h; j++) {
+          var empty = i && j && i < w && j < h;
+          callback(i, j, empty ? 0 : 1);
+        }
+      }
+
+      return this;
+    };
+
+    return Arena;
+  }(Map);
+  /**
+   * @class Dungeon map: has rooms and corridors
+   * @augments ROT.Map
+   */
+
+
+  var Dungeon =
+  /*#__PURE__*/
+  function (_Map2) {
+    _inheritsLoose(Dungeon, _Map2);
+
+    function Dungeon(width, height) {
+      var _this10;
+
+      _this10 = _Map2.call(this, width, height) || this;
+      _this10._rooms = [];
+      _this10._corridors = [];
+      return _this10;
+    }
+    /**
+     * Get all generated rooms
+     * @returns {ROT.Map.Feature.Room[]}
+     */
+
+
+    var _proto22 = Dungeon.prototype;
+
+    _proto22.getRooms = function getRooms() {
+      return this._rooms;
+    };
+    /**
+     * Get all generated corridors
+     * @returns {ROT.Map.Feature.Corridor[]}
+     */
+
+
+    _proto22.getCorridors = function getCorridors() {
+      return this._corridors;
+    };
+
+    return Dungeon;
+  }(Map);
+  /**
+   * @class Dungeon feature; has own .create() method
+   */
+
+
+  var Feature = function Feature() {};
+  /**
+   * @class Room
+   * @augments ROT.Map.Feature
+   * @param {int} x1
+   * @param {int} y1
+   * @param {int} x2
+   * @param {int} y2
+   * @param {int} [doorX]
+   * @param {int} [doorY]
+   */
+
+
+  var Room =
+  /*#__PURE__*/
+  function (_Feature) {
+    _inheritsLoose(Room, _Feature);
+
+    function Room(x1, y1, x2, y2, doorX, doorY) {
+      var _this11;
+
+      _this11 = _Feature.call(this) || this;
+      _this11._x1 = x1;
+      _this11._y1 = y1;
+      _this11._x2 = x2;
+      _this11._y2 = y2;
+      _this11._doors = {};
+
+      if (doorX !== undefined && doorY !== undefined) {
+        _this11.addDoor(doorX, doorY);
+      }
+
+      return _this11;
+    }
+
+    /**
+     * Room of random size, with a given doors and direction
+     */
+    Room.createRandomAt = function createRandomAt(x, y, dx, dy, options) {
+      var min = options.roomWidth[0];
+      var max = options.roomWidth[1];
+      var width = RNG$1.getUniformInt(min, max);
+      min = options.roomHeight[0];
+      max = options.roomHeight[1];
+      var height = RNG$1.getUniformInt(min, max);
+
+      if (dx == 1) {
+        /* to the right */
+        var y2 = y - Math.floor(RNG$1.getUniform() * height);
+        return new this(x + 1, y2, x + width, y2 + height - 1, x, y);
+      }
+
+      if (dx == -1) {
+        /* to the left */
+        var _y = y - Math.floor(RNG$1.getUniform() * height);
+
+        return new this(x - width, _y, x - 1, _y + height - 1, x, y);
+      }
+
+      if (dy == 1) {
+        /* to the bottom */
+        var x2 = x - Math.floor(RNG$1.getUniform() * width);
+        return new this(x2, y + 1, x2 + width - 1, y + height, x, y);
+      }
+
+      if (dy == -1) {
+        /* to the top */
+        var _x = x - Math.floor(RNG$1.getUniform() * width);
+
+        return new this(_x, y - height, _x + width - 1, y - 1, x, y);
+      }
+
+      throw new Error("dx or dy must be 1 or -1");
+    };
+    /**
+     * Room of random size, positioned around center coords
+     */
+
+
+    Room.createRandomCenter = function createRandomCenter(cx, cy, options) {
+      var min = options.roomWidth[0];
+      var max = options.roomWidth[1];
+      var width = RNG$1.getUniformInt(min, max);
+      min = options.roomHeight[0];
+      max = options.roomHeight[1];
+      var height = RNG$1.getUniformInt(min, max);
+      var x1 = cx - Math.floor(RNG$1.getUniform() * width);
+      var y1 = cy - Math.floor(RNG$1.getUniform() * height);
+      var x2 = x1 + width - 1;
+      var y2 = y1 + height - 1;
+      return new this(x1, y1, x2, y2);
+    };
+    /**
+     * Room of random size within a given dimensions
+     */
+
+
+    Room.createRandom = function createRandom(availWidth, availHeight, options) {
+      var min = options.roomWidth[0];
+      var max = options.roomWidth[1];
+      var width = RNG$1.getUniformInt(min, max);
+      min = options.roomHeight[0];
+      max = options.roomHeight[1];
+      var height = RNG$1.getUniformInt(min, max);
+      var left = availWidth - width - 1;
+      var top = availHeight - height - 1;
+      var x1 = 1 + Math.floor(RNG$1.getUniform() * left);
+      var y1 = 1 + Math.floor(RNG$1.getUniform() * top);
+      var x2 = x1 + width - 1;
+      var y2 = y1 + height - 1;
+      return new this(x1, y1, x2, y2);
+    };
+
+    var _proto23 = Room.prototype;
+
+    _proto23.addDoor = function addDoor(x, y) {
+      this._doors[x + "," + y] = 1;
+      return this;
+    };
+    /**
+     * @param {function}
+     */
+
+
+    _proto23.getDoors = function getDoors(cb) {
+      for (var key in this._doors) {
+        var parts = key.split(",");
+        cb(parseInt(parts[0]), parseInt(parts[1]));
+      }
+
+      return this;
+    };
+
+    _proto23.clearDoors = function clearDoors() {
+      this._doors = {};
+      return this;
+    };
+
+    _proto23.addDoors = function addDoors(isWallCallback) {
+      var left = this._x1 - 1;
+      var right = this._x2 + 1;
+      var top = this._y1 - 1;
+      var bottom = this._y2 + 1;
+
+      for (var x = left; x <= right; x++) {
+        for (var y = top; y <= bottom; y++) {
+          if (x != left && x != right && y != top && y != bottom) {
+            continue;
+          }
+
+          if (isWallCallback(x, y)) {
+            continue;
+          }
+
+          this.addDoor(x, y);
+        }
+      }
+
+      return this;
+    };
+
+    _proto23.debug = function debug() {
+      console.log("room", this._x1, this._y1, this._x2, this._y2);
+    };
+
+    _proto23.isValid = function isValid(isWallCallback, canBeDugCallback) {
+      var left = this._x1 - 1;
+      var right = this._x2 + 1;
+      var top = this._y1 - 1;
+      var bottom = this._y2 + 1;
+
+      for (var x = left; x <= right; x++) {
+        for (var y = top; y <= bottom; y++) {
+          if (x == left || x == right || y == top || y == bottom) {
+            if (!isWallCallback(x, y)) {
+              return false;
+            }
+          } else {
+            if (!canBeDugCallback(x, y)) {
+              return false;
+            }
+          }
+        }
+      }
+
+      return true;
+    };
+    /**
+     * @param {function} digCallback Dig callback with a signature (x, y, value). Values: 0 = empty, 1 = wall, 2 = door. Multiple doors are allowed.
+     */
+
+
+    _proto23.create = function create(digCallback) {
+      var left = this._x1 - 1;
+      var right = this._x2 + 1;
+      var top = this._y1 - 1;
+      var bottom = this._y2 + 1;
+      var value = 0;
+
+      for (var x = left; x <= right; x++) {
+        for (var y = top; y <= bottom; y++) {
+          if (x + "," + y in this._doors) {
+            value = 2;
+          } else if (x == left || x == right || y == top || y == bottom) {
+            value = 1;
+          } else {
+            value = 0;
+          }
+
+          digCallback(x, y, value);
+        }
+      }
+    };
+
+    _proto23.getCenter = function getCenter() {
+      return [Math.round((this._x1 + this._x2) / 2), Math.round((this._y1 + this._y2) / 2)];
+    };
+
+    _proto23.getLeft = function getLeft() {
+      return this._x1;
+    };
+
+    _proto23.getRight = function getRight() {
+      return this._x2;
+    };
+
+    _proto23.getTop = function getTop() {
+      return this._y1;
+    };
+
+    _proto23.getBottom = function getBottom() {
+      return this._y2;
+    };
+
+    return Room;
+  }(Feature);
+  /**
+   * @class Corridor
+   * @augments ROT.Map.Feature
+   * @param {int} startX
+   * @param {int} startY
+   * @param {int} endX
+   * @param {int} endY
+   */
+
+
+  var Corridor =
+  /*#__PURE__*/
+  function (_Feature2) {
+    _inheritsLoose(Corridor, _Feature2);
+
+    function Corridor(startX, startY, endX, endY) {
+      var _this12;
+
+      _this12 = _Feature2.call(this) || this;
+      _this12._startX = startX;
+      _this12._startY = startY;
+      _this12._endX = endX;
+      _this12._endY = endY;
+      _this12._endsWithAWall = true;
+      return _this12;
+    }
+
+    Corridor.createRandomAt = function createRandomAt(x, y, dx, dy, options) {
+      var min = options.corridorLength[0];
+      var max = options.corridorLength[1];
+      var length = RNG$1.getUniformInt(min, max);
+      return new this(x, y, x + dx * length, y + dy * length);
+    };
+
+    var _proto24 = Corridor.prototype;
+
+    _proto24.debug = function debug() {
+      console.log("corridor", this._startX, this._startY, this._endX, this._endY);
+    };
+
+    _proto24.isValid = function isValid(isWallCallback, canBeDugCallback) {
+      var sx = this._startX;
+      var sy = this._startY;
+      var dx = this._endX - sx;
+      var dy = this._endY - sy;
+      var length = 1 + Math.max(Math.abs(dx), Math.abs(dy));
+
+      if (dx) {
+        dx = dx / Math.abs(dx);
+      }
+
+      if (dy) {
+        dy = dy / Math.abs(dy);
+      }
+
+      var nx = dy;
+      var ny = -dx;
+      var ok = true;
+
+      for (var i = 0; i < length; i++) {
+        var x = sx + i * dx;
+        var y = sy + i * dy;
+
+        if (!canBeDugCallback(x, y)) {
+          ok = false;
+        }
+
+        if (!isWallCallback(x + nx, y + ny)) {
+          ok = false;
+        }
+
+        if (!isWallCallback(x - nx, y - ny)) {
+          ok = false;
+        }
+
+        if (!ok) {
+          length = i;
+          this._endX = x - dx;
+          this._endY = y - dy;
+          break;
+        }
+      }
+      /**
+       * If the length degenerated, this corridor might be invalid
+       */
+
+      /* not supported */
+
+
+      if (length == 0) {
+        return false;
+      }
+      /* length 1 allowed only if the next space is empty */
+
+
+      if (length == 1 && isWallCallback(this._endX + dx, this._endY + dy)) {
+        return false;
+      }
+      /**
+       * We do not want the corridor to crash into a corner of a room;
+       * if any of the ending corners is empty, the N+1th cell of this corridor must be empty too.
+       *
+       * Situation:
+       * #######1
+       * .......?
+       * #######2
+       *
+       * The corridor was dug from left to right.
+       * 1, 2 - problematic corners, ? = N+1th cell (not dug)
+       */
+
+
+      var firstCornerBad = !isWallCallback(this._endX + dx + nx, this._endY + dy + ny);
+      var secondCornerBad = !isWallCallback(this._endX + dx - nx, this._endY + dy - ny);
+      this._endsWithAWall = isWallCallback(this._endX + dx, this._endY + dy);
+
+      if ((firstCornerBad || secondCornerBad) && this._endsWithAWall) {
+        return false;
+      }
+
+      return true;
+    };
+    /**
+     * @param {function} digCallback Dig callback with a signature (x, y, value). Values: 0 = empty.
+     */
+
+
+    _proto24.create = function create(digCallback) {
+      var sx = this._startX;
+      var sy = this._startY;
+      var dx = this._endX - sx;
+      var dy = this._endY - sy;
+      var length = 1 + Math.max(Math.abs(dx), Math.abs(dy));
+
+      if (dx) {
+        dx = dx / Math.abs(dx);
+      }
+
+      if (dy) {
+        dy = dy / Math.abs(dy);
+      }
+
+      for (var i = 0; i < length; i++) {
+        var x = sx + i * dx;
+        var y = sy + i * dy;
+        digCallback(x, y, 0);
+      }
+
+      return true;
+    };
+
+    _proto24.createPriorityWalls = function createPriorityWalls(priorityWallCallback) {
+      if (!this._endsWithAWall) {
+        return;
+      }
+
+      var sx = this._startX;
+      var sy = this._startY;
+      var dx = this._endX - sx;
+      var dy = this._endY - sy;
+
+      if (dx) {
+        dx = dx / Math.abs(dx);
+      }
+
+      if (dy) {
+        dy = dy / Math.abs(dy);
+      }
+
+      var nx = dy;
+      var ny = -dx;
+      priorityWallCallback(this._endX + dx, this._endY + dy);
+      priorityWallCallback(this._endX + nx, this._endY + ny);
+      priorityWallCallback(this._endX - nx, this._endY - ny);
+    };
+
+    return Corridor;
+  }(Feature);
+  /**
+   * @class Dungeon generator which tries to fill the space evenly. Generates independent rooms and tries to connect them.
+   * @augments ROT.Map.Dungeon
+   */
+
+
+  var Uniform =
+  /*#__PURE__*/
+  function (_Dungeon) {
+    _inheritsLoose(Uniform, _Dungeon);
+
+    function Uniform(width, height, options) {
+      var _this13;
+
+      _this13 = _Dungeon.call(this, width, height) || this;
+      _this13._options = {
+        roomWidth: [3, 9],
+        roomHeight: [3, 5],
+        roomDugPercentage: 0.1,
+        timeLimit: 1000
+        /* we stop after this much time has passed (msec) */
+
+      };
+      Object.assign(_this13._options, options);
+      _this13._map = [];
+      _this13._dug = 0;
+      _this13._roomAttempts = 20;
+      /* new room is created N-times until is considered as impossible to generate */
+
+      _this13._corridorAttempts = 20;
+      /* corridors are tried N-times until the level is considered as impossible to connect */
+
+      _this13._connected = [];
+      /* list of already connected rooms */
+
+      _this13._unconnected = [];
+      /* list of remaining unconnected rooms */
+
+      _this13._digCallback = _this13._digCallback.bind(_assertThisInitialized(_assertThisInitialized(_this13)));
+      _this13._canBeDugCallback = _this13._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(_this13)));
+      _this13._isWallCallback = _this13._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(_this13)));
+      return _this13;
+    }
+    /**
+     * Create a map. If the time limit has been hit, returns null.
+     * @see ROT.Map#create
+     */
+
+
+    var _proto25 = Uniform.prototype;
+
+    _proto25.create = function create(callback) {
+      var t1 = Date.now();
+
+      while (1) {
+        var t2 = Date.now();
+
+        if (t2 - t1 > this._options.timeLimit) {
+          return null;
+        }
+        /* time limit! */
+
+
+        this._map = this._fillMap(1);
+        this._dug = 0;
+        this._rooms = [];
+        this._unconnected = [];
+
+        this._generateRooms();
+
+        if (this._rooms.length < 2) {
+          continue;
+        }
+
+        if (this._generateCorridors()) {
+          break;
+        }
+      }
+
+      if (callback) {
+        for (var i = 0; i < this._width; i++) {
+          for (var j = 0; j < this._height; j++) {
+            callback(i, j, this._map[i][j]);
+          }
+        }
+      }
+
+      return this;
+    };
+    /**
+     * Generates a suitable amount of rooms
+     */
+
+
+    _proto25._generateRooms = function _generateRooms() {
+      var w = this._width - 2;
+      var h = this._height - 2;
+      var room;
+
+      do {
+        room = this._generateRoom();
+
+        if (this._dug / (w * h) > this._options.roomDugPercentage) {
+          break;
+        }
+        /* achieved requested amount of free space */
+
+      } while (room);
+      /* either enough rooms, or not able to generate more of them :) */
+
+    };
+    /**
+     * Try to generate one room
+     */
+
+
+    _proto25._generateRoom = function _generateRoom() {
+      var count = 0;
+
+      while (count < this._roomAttempts) {
+        count++;
+        var room = Room.createRandom(this._width, this._height, this._options);
+
+        if (!room.isValid(this._isWallCallback, this._canBeDugCallback)) {
+          continue;
+        }
+
+        room.create(this._digCallback);
+
+        this._rooms.push(room);
+
+        return room;
+      }
+      /* no room was generated in a given number of attempts */
+
+
+      return null;
+    };
+    /**
+     * Generates connectors beween rooms
+     * @returns {bool} success Was this attempt successfull?
+     */
+
+
+    _proto25._generateCorridors = function _generateCorridors() {
+      var cnt = 0;
+
+      while (cnt < this._corridorAttempts) {
+        cnt++;
+        this._corridors = [];
+        /* dig rooms into a clear map */
+
+        this._map = this._fillMap(1);
+
+        for (var i = 0; i < this._rooms.length; i++) {
+          var room = this._rooms[i];
+          room.clearDoors();
+          room.create(this._digCallback);
+        }
+
+        this._unconnected = RNG$1.shuffle(this._rooms.slice());
+        this._connected = [];
+
+        if (this._unconnected.length) {
+          this._connected.push(this._unconnected.pop());
+        }
+        /* first one is always connected */
+
+
+        while (1) {
+          /* 1. pick random connected room */
+          var connected = RNG$1.getItem(this._connected);
+
+          if (!connected) {
+            break;
+          }
+          /* 2. find closest unconnected */
+
+
+          var room1 = this._closestRoom(this._unconnected, connected);
+
+          if (!room1) {
+            break;
+          }
+          /* 3. connect it to closest connected */
+
+
+          var room2 = this._closestRoom(this._connected, room1);
+
+          if (!room2) {
+            break;
+          }
+
+          var ok = this._connectRooms(room1, room2);
+
+          if (!ok) {
+            break;
+          }
+          /* stop connecting, re-shuffle */
+
+
+          if (!this._unconnected.length) {
+            return true;
+          }
+          /* done; no rooms remain */
+
+        }
+      }
+
+      return false;
+    };
+
+    /**
+     * For a given room, find the closest one from the list
+     */
+    _proto25._closestRoom = function _closestRoom(rooms, room) {
+      var dist = Infinity;
+      var center = room.getCenter();
+      var result = null;
+
+      for (var i = 0; i < rooms.length; i++) {
+        var r = rooms[i];
+        var c = r.getCenter();
+        var dx = c[0] - center[0];
+        var dy = c[1] - center[1];
+        var d = dx * dx + dy * dy;
+
+        if (d < dist) {
+          dist = d;
+          result = r;
+        }
+      }
+
+      return result;
+    };
+
+    _proto25._connectRooms = function _connectRooms(room1, room2) {
+      /*
+          room1.debug();
+          room2.debug();
+      */
+      var center1 = room1.getCenter();
+      var center2 = room2.getCenter();
+      var diffX = center2[0] - center1[0];
+      var diffY = center2[1] - center1[1];
+      var start;
+      var end;
+      var dirIndex1, dirIndex2, min, max, index;
+
+      if (Math.abs(diffX) < Math.abs(diffY)) {
+        /* first try connecting north-south walls */
+        dirIndex1 = diffY > 0 ? 2 : 0;
+        dirIndex2 = (dirIndex1 + 2) % 4;
+        min = room2.getLeft();
+        max = room2.getRight();
+        index = 0;
+      } else {
+        /* first try connecting east-west walls */
+        dirIndex1 = diffX > 0 ? 1 : 3;
+        dirIndex2 = (dirIndex1 + 2) % 4;
+        min = room2.getTop();
+        max = room2.getBottom();
+        index = 1;
+      }
+
+      start = this._placeInWall(room1, dirIndex1);
+      /* corridor will start here */
+
+      if (!start) {
+        return false;
+      }
+
+      if (start[index] >= min && start[index] <= max) {
+        /* possible to connect with straight line (I-like) */
+        end = start.slice();
+        var value = 0;
+
+        switch (dirIndex2) {
+          case 0:
+            value = room2.getTop() - 1;
+            break;
+
+          case 1:
+            value = room2.getRight() + 1;
+            break;
+
+          case 2:
+            value = room2.getBottom() + 1;
+            break;
+
+          case 3:
+            value = room2.getLeft() - 1;
+            break;
+        }
+
+        end[(index + 1) % 2] = value;
+
+        this._digLine([start, end]);
+      } else if (start[index] < min - 1 || start[index] > max + 1) {
+        /* need to switch target wall (L-like) */
+        var diff = start[index] - center2[index];
+        var rotation = 0;
+
+        switch (dirIndex2) {
+          case 0:
+          case 1:
+            rotation = diff < 0 ? 3 : 1;
+            break;
+
+          case 2:
+          case 3:
+            rotation = diff < 0 ? 1 : 3;
+            break;
+        }
+
+        dirIndex2 = (dirIndex2 + rotation) % 4;
+        end = this._placeInWall(room2, dirIndex2);
+
+        if (!end) {
+          return false;
+        }
+
+        var mid = [0, 0];
+        mid[index] = start[index];
+        var index2 = (index + 1) % 2;
+        mid[index2] = end[index2];
+
+        this._digLine([start, mid, end]);
+      } else {
+        /* use current wall pair, but adjust the line in the middle (S-like) */
+        var _index4 = (index + 1) % 2;
+
+        end = this._placeInWall(room2, dirIndex2);
+
+        if (!end) {
+          return false;
+        }
+
+        var _mid = Math.round((end[_index4] + start[_index4]) / 2);
+
+        var mid1 = [0, 0];
+        var mid2 = [0, 0];
+        mid1[index] = start[index];
+        mid1[_index4] = _mid;
+        mid2[index] = end[index];
+        mid2[_index4] = _mid;
+
+        this._digLine([start, mid1, mid2, end]);
+      }
+
+      room1.addDoor(start[0], start[1]);
+      room2.addDoor(end[0], end[1]);
+      index = this._unconnected.indexOf(room1);
+
+      if (index != -1) {
+        this._unconnected.splice(index, 1);
+
+        this._connected.push(room1);
+      }
+
+      index = this._unconnected.indexOf(room2);
+
+      if (index != -1) {
+        this._unconnected.splice(index, 1);
+
+        this._connected.push(room2);
+      }
+
+      return true;
+    };
+
+    _proto25._placeInWall = function _placeInWall(room, dirIndex) {
+      var start = [0, 0];
+      var dir = [0, 0];
+      var length = 0;
+
+      switch (dirIndex) {
+        case 0:
+          dir = [1, 0];
+          start = [room.getLeft(), room.getTop() - 1];
+          length = room.getRight() - room.getLeft() + 1;
+          break;
+
+        case 1:
+          dir = [0, 1];
+          start = [room.getRight() + 1, room.getTop()];
+          length = room.getBottom() - room.getTop() + 1;
+          break;
+
+        case 2:
+          dir = [1, 0];
+          start = [room.getLeft(), room.getBottom() + 1];
+          length = room.getRight() - room.getLeft() + 1;
+          break;
+
+        case 3:
+          dir = [0, 1];
+          start = [room.getLeft() - 1, room.getTop()];
+          length = room.getBottom() - room.getTop() + 1;
+          break;
+      }
+
+      var avail = [];
+      var lastBadIndex = -2;
+
+      for (var i = 0; i < length; i++) {
+        var x = start[0] + i * dir[0];
+        var y = start[1] + i * dir[1];
+        avail.push(null);
+        var isWall = this._map[x][y] == 1;
+
+        if (isWall) {
+          if (lastBadIndex != i - 1) {
+            avail[i] = [x, y];
+          }
+        } else {
+          lastBadIndex = i;
+
+          if (i) {
+            avail[i - 1] = null;
+          }
+        }
+      }
+
+      for (var _i3 = avail.length - 1; _i3 >= 0; _i3--) {
+        if (!avail[_i3]) {
+          avail.splice(_i3, 1);
+        }
+      }
+
+      return avail.length ? RNG$1.getItem(avail) : null;
+    };
+    /**
+     * Dig a polyline.
+     */
+
+
+    _proto25._digLine = function _digLine(points) {
+      for (var i = 1; i < points.length; i++) {
+        var start = points[i - 1];
+        var end = points[i];
+        var corridor = new Corridor(start[0], start[1], end[0], end[1]);
+        corridor.create(this._digCallback);
+
+        this._corridors.push(corridor);
+      }
+    };
+
+    _proto25._digCallback = function _digCallback(x, y, value) {
+      this._map[x][y] = value;
+
+      if (value == 0) {
+        this._dug++;
+      }
+    };
+
+    _proto25._isWallCallback = function _isWallCallback(x, y) {
+      if (x < 0 || y < 0 || x >= this._width || y >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    _proto25._canBeDugCallback = function _canBeDugCallback(x, y) {
+      if (x < 1 || y < 1 || x + 1 >= this._width || y + 1 >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    return Uniform;
+  }(Dungeon);
+  /**
+   * @class Cellular automaton map generator
+   * @augments ROT.Map
+   * @param {int} [width=ROT.DEFAULT_WIDTH]
+   * @param {int} [height=ROT.DEFAULT_HEIGHT]
+   * @param {object} [options] Options
+   * @param {int[]} [options.born] List of neighbor counts for a new cell to be born in empty space
+   * @param {int[]} [options.survive] List of neighbor counts for an existing  cell to survive
+   * @param {int} [options.topology] Topology 4 or 6 or 8
+   */
+
+
+  var Cellular =
+  /*#__PURE__*/
+  function (_Map3) {
+    _inheritsLoose(Cellular, _Map3);
+
+    function Cellular(width, height, options) {
+      var _this14;
+
+      if (options === void 0) {
+        options = {};
+      }
+
+      _this14 = _Map3.call(this, width, height) || this;
+      _this14._options = {
+        born: [5, 6, 7, 8],
+        survive: [4, 5, 6, 7, 8],
+        topology: 8
+      };
+
+      _this14.setOptions(options);
+
+      _this14._dirs = DIRS[_this14._options.topology];
+      _this14._map = _this14._fillMap(0);
+      return _this14;
+    }
+    /**
+     * Fill the map with random values
+     * @param {float} probability Probability for a cell to become alive; 0 = all empty, 1 = all full
+     */
+
+
+    var _proto26 = Cellular.prototype;
+
+    _proto26.randomize = function randomize(probability) {
+      for (var i = 0; i < this._width; i++) {
+        for (var j = 0; j < this._height; j++) {
+          this._map[i][j] = RNG$1.getUniform() < probability ? 1 : 0;
+        }
+      }
+
+      return this;
+    };
+    /**
+     * Change options.
+     * @see ROT.Map.Cellular
+     */
+
+
+    _proto26.setOptions = function setOptions(options) {
+      Object.assign(this._options, options);
+    };
+
+    _proto26.set = function set(x, y, value) {
+      this._map[x][y] = value;
+    };
+
+    _proto26.create = function create(callback) {
+      var newMap = this._fillMap(0);
+
+      var born = this._options.born;
+      var survive = this._options.survive;
+
+      for (var j = 0; j < this._height; j++) {
+        var widthStep = 1;
+        var widthStart = 0;
+
+        if (this._options.topology == 6) {
+          widthStep = 2;
+          widthStart = j % 2;
+        }
+
+        for (var i = widthStart; i < this._width; i += widthStep) {
+          var cur = this._map[i][j];
+
+          var ncount = this._getNeighbors(i, j);
+
+          if (cur && survive.indexOf(ncount) != -1) {
+            /* survive */
+            newMap[i][j] = 1;
+          } else if (!cur && born.indexOf(ncount) != -1) {
+            /* born */
+            newMap[i][j] = 1;
+          }
+        }
+      }
+
+      this._map = newMap;
+      callback && this._serviceCallback(callback);
+    };
+
+    _proto26._serviceCallback = function _serviceCallback(callback) {
+      for (var j = 0; j < this._height; j++) {
+        var widthStep = 1;
+        var widthStart = 0;
+
+        if (this._options.topology == 6) {
+          widthStep = 2;
+          widthStart = j % 2;
+        }
+
+        for (var i = widthStart; i < this._width; i += widthStep) {
+          callback(i, j, this._map[i][j]);
+        }
+      }
+    };
+    /**
+     * Get neighbor count at [i,j] in this._map
+     */
+
+
+    _proto26._getNeighbors = function _getNeighbors(cx, cy) {
+      var result = 0;
+
+      for (var i = 0; i < this._dirs.length; i++) {
+        var dir = this._dirs[i];
+        var x = cx + dir[0];
+        var y = cy + dir[1];
+
+        if (x < 0 || x >= this._width || y < 0 || y >= this._height) {
+          continue;
+        }
+
+        result += this._map[x][y] == 1 ? 1 : 0;
+      }
+
+      return result;
+    };
+    /**
+     * Make sure every non-wall space is accessible.
+     * @param {function} callback to call to display map when do
+     * @param {int} value to consider empty space - defaults to 0
+     * @param {function} callback to call when a new connection is made
+     */
+
+
+    _proto26.connect = function connect(callback, value, connectionCallback) {
+      if (!value) value = 0;
+      var allFreeSpace = [];
+      var notConnected = {}; // find all free space
+
+      var widthStep = 1;
+      var widthStarts = [0, 0];
+
+      if (this._options.topology == 6) {
+        widthStep = 2;
+        widthStarts = [0, 1];
+      }
+
+      for (var y = 0; y < this._height; y++) {
+        for (var x = widthStarts[y % 2]; x < this._width; x += widthStep) {
+          if (this._freeSpace(x, y, value)) {
+            var p = [x, y];
+            notConnected[this._pointKey(p)] = p;
+            allFreeSpace.push([x, y]);
+          }
+        }
+      }
+
+      var start = allFreeSpace[RNG$1.getUniformInt(0, allFreeSpace.length - 1)];
+
+      var key = this._pointKey(start);
+
+      var connected = {};
+      connected[key] = start;
+      delete notConnected[key]; // find what's connected to the starting point
+
+      this._findConnected(connected, notConnected, [start], false, value);
+
+      while (Object.keys(notConnected).length > 0) {
+        // find two points from notConnected to connected
+        var _p = this._getFromTo(connected, notConnected);
+
+        var from = _p[0]; // notConnected
+
+        var to = _p[1]; // connected
+        // find everything connected to the starting point
+
+        var local = {};
+        local[this._pointKey(from)] = from;
+
+        this._findConnected(local, notConnected, [from], true, value); // connect to a connected cell
+
+
+        var tunnelFn = this._options.topology == 6 ? this._tunnelToConnected6 : this._tunnelToConnected;
+        tunnelFn.call(this, to, from, connected, notConnected, value, connectionCallback); // now all of local is connected
+
+        for (var k in local) {
+          var pp = local[k];
+          this._map[pp[0]][pp[1]] = value;
+          connected[k] = pp;
+          delete notConnected[k];
+        }
+      }
+
+      callback && this._serviceCallback(callback);
+    };
+    /**
+     * Find random points to connect. Search for the closest point in the larger space.
+     * This is to minimize the length of the passage while maintaining good performance.
+     */
+
+
+    _proto26._getFromTo = function _getFromTo(connected, notConnected) {
+      var from = [0, 0],
+          to = [0, 0],
+          d;
+      var connectedKeys = Object.keys(connected);
+      var notConnectedKeys = Object.keys(notConnected);
+
+      for (var i = 0; i < 5; i++) {
+        if (connectedKeys.length < notConnectedKeys.length) {
+          var keys = connectedKeys;
+          to = connected[keys[RNG$1.getUniformInt(0, keys.length - 1)]];
+          from = this._getClosest(to, notConnected);
+        } else {
+          var _keys = notConnectedKeys;
+          from = notConnected[_keys[RNG$1.getUniformInt(0, _keys.length - 1)]];
+          to = this._getClosest(from, connected);
+        }
+
+        d = (from[0] - to[0]) * (from[0] - to[0]) + (from[1] - to[1]) * (from[1] - to[1]);
+
+        if (d < 64) {
+          break;
+        }
+      } // console.log(">>> connected=" + to + " notConnected=" + from + " dist=" + d);
+
+
+      return [from, to];
+    };
+
+    _proto26._getClosest = function _getClosest(point, space) {
+      var minPoint = null;
+      var minDist = null;
+
+      for (var k in space) {
+        var p = space[k];
+        var d = (p[0] - point[0]) * (p[0] - point[0]) + (p[1] - point[1]) * (p[1] - point[1]);
+
+        if (minDist == null || d < minDist) {
+          minDist = d;
+          minPoint = p;
+        }
+      }
+
+      return minPoint;
+    };
+
+    _proto26._findConnected = function _findConnected(connected, notConnected, stack, keepNotConnected, value) {
+      while (stack.length > 0) {
+        var p = stack.splice(0, 1)[0];
+        var tests = void 0;
+
+        if (this._options.topology == 6) {
+          tests = [[p[0] + 2, p[1]], [p[0] + 1, p[1] - 1], [p[0] - 1, p[1] - 1], [p[0] - 2, p[1]], [p[0] - 1, p[1] + 1], [p[0] + 1, p[1] + 1]];
+        } else {
+          tests = [[p[0] + 1, p[1]], [p[0] - 1, p[1]], [p[0], p[1] + 1], [p[0], p[1] - 1]];
+        }
+
+        for (var i = 0; i < tests.length; i++) {
+          var key = this._pointKey(tests[i]);
+
+          if (connected[key] == null && this._freeSpace(tests[i][0], tests[i][1], value)) {
+            connected[key] = tests[i];
+
+            if (!keepNotConnected) {
+              delete notConnected[key];
+            }
+
+            stack.push(tests[i]);
+          }
+        }
+      }
+    };
+
+    _proto26._tunnelToConnected = function _tunnelToConnected(to, from, connected, notConnected, value, connectionCallback) {
+      var a, b;
+
+      if (from[0] < to[0]) {
+        a = from;
+        b = to;
+      } else {
+        a = to;
+        b = from;
+      }
+
+      for (var xx = a[0]; xx <= b[0]; xx++) {
+        this._map[xx][a[1]] = value;
+        var p = [xx, a[1]];
+
+        var pkey = this._pointKey(p);
+
+        connected[pkey] = p;
+        delete notConnected[pkey];
+      }
+
+      if (connectionCallback && a[0] < b[0]) {
+        connectionCallback(a, [b[0], a[1]]);
+      } // x is now fixed
+
+
+      var x = b[0];
+
+      if (from[1] < to[1]) {
+        a = from;
+        b = to;
+      } else {
+        a = to;
+        b = from;
+      }
+
+      for (var yy = a[1]; yy < b[1]; yy++) {
+        this._map[x][yy] = value;
+        var _p2 = [x, yy];
+
+        var _pkey = this._pointKey(_p2);
+
+        connected[_pkey] = _p2;
+        delete notConnected[_pkey];
+      }
+
+      if (connectionCallback && a[1] < b[1]) {
+        connectionCallback([b[0], a[1]], [b[0], b[1]]);
+      }
+    };
+
+    _proto26._tunnelToConnected6 = function _tunnelToConnected6(to, from, connected, notConnected, value, connectionCallback) {
+      var a, b;
+
+      if (from[0] < to[0]) {
+        a = from;
+        b = to;
+      } else {
+        a = to;
+        b = from;
+      } // tunnel diagonally until horizontally level
+
+
+      var xx = a[0];
+      var yy = a[1];
+
+      while (!(xx == b[0] && yy == b[1])) {
+        var stepWidth = 2;
+
+        if (yy < b[1]) {
+          yy++;
+          stepWidth = 1;
+        } else if (yy > b[1]) {
+          yy--;
+          stepWidth = 1;
+        }
+
+        if (xx < b[0]) {
+          xx += stepWidth;
+        } else if (xx > b[0]) {
+          xx -= stepWidth;
+        } else if (b[1] % 2) {
+          // Won't step outside map if destination on is map's right edge
+          xx -= stepWidth;
+        } else {
+          // ditto for left edge
+          xx += stepWidth;
+        }
+
+        this._map[xx][yy] = value;
+        var p = [xx, yy];
+
+        var pkey = this._pointKey(p);
+
+        connected[pkey] = p;
+        delete notConnected[pkey];
+      }
+
+      if (connectionCallback) {
+        connectionCallback(from, to);
+      }
+    };
+
+    _proto26._freeSpace = function _freeSpace(x, y, value) {
+      return x >= 0 && x < this._width && y >= 0 && y < this._height && this._map[x][y] == value;
+    };
+
+    _proto26._pointKey = function _pointKey(p) {
+      return p[0] + "." + p[1];
+    };
+
+    return Cellular;
+  }(Map);
+
+  var FEATURES = {
+    "room": Room,
+    "corridor": Corridor
+  };
+  /**
+   * Random dungeon generator using human-like digging patterns.
+   * Heavily based on Mike Anderson's ideas from the "Tyrant" algo, mentioned at
+   * http://www.roguebasin.roguelikedevelopment.org/index.php?title=Dungeon-Building_Algorithm.
+   */
+
+  var Digger =
+  /*#__PURE__*/
+  function (_Dungeon2) {
+    _inheritsLoose(Digger, _Dungeon2);
+
+    function Digger(width, height, options) {
+      var _this15;
+
+      if (options === void 0) {
+        options = {};
+      }
+
+      _this15 = _Dungeon2.call(this, width, height) || this;
+      _this15._options = Object.assign({
+        roomWidth: [3, 9],
+        roomHeight: [3, 5],
+        corridorLength: [3, 10],
+        dugPercentage: 0.2,
+        timeLimit: 1000
+        /* we stop after this much time has passed (msec) */
+
+      }, options);
+      _this15._features = {
+        "room": 4,
+        "corridor": 4
+      };
+      _this15._map = [];
+      _this15._featureAttempts = 20;
+      /* how many times do we try to create a feature on a suitable wall */
+
+      _this15._walls = {};
+      /* these are available for digging */
+
+      _this15._dug = 0;
+      _this15._digCallback = _this15._digCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      _this15._canBeDugCallback = _this15._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      _this15._isWallCallback = _this15._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      _this15._priorityWallCallback = _this15._priorityWallCallback.bind(_assertThisInitialized(_assertThisInitialized(_this15)));
+      return _this15;
+    }
+
+    var _proto27 = Digger.prototype;
+
+    _proto27.create = function create(callback) {
+      this._rooms = [];
+      this._corridors = [];
+      this._map = this._fillMap(1);
+      this._walls = {};
+      this._dug = 0;
+      var area = (this._width - 2) * (this._height - 2);
+
+      this._firstRoom();
+
+      var t1 = Date.now();
+      var priorityWalls;
+
+      do {
+        priorityWalls = 0;
+        var t2 = Date.now();
+
+        if (t2 - t1 > this._options.timeLimit) {
+          break;
+        }
+        /* find a good wall */
+
+
+        var wall = this._findWall();
+
+        if (!wall) {
+          break;
+        }
+        /* no more walls */
+
+
+        var parts = wall.split(",");
+        var x = parseInt(parts[0]);
+        var y = parseInt(parts[1]);
+
+        var dir = this._getDiggingDirection(x, y);
+
+        if (!dir) {
+          continue;
+        }
+        /* this wall is not suitable */
+        //		console.log("wall", x, y);
+
+        /* try adding a feature */
+
+
+        var featureAttempts = 0;
+
+        do {
+          featureAttempts++;
+
+          if (this._tryFeature(x, y, dir[0], dir[1])) {
+            /* feature added */
+            //if (this._rooms.length + this._corridors.length == 2) { this._rooms[0].addDoor(x, y); } /* first room oficially has doors */
+            this._removeSurroundingWalls(x, y);
+
+            this._removeSurroundingWalls(x - dir[0], y - dir[1]);
+
+            break;
+          }
+        } while (featureAttempts < this._featureAttempts);
+
+        for (var id in this._walls) {
+          if (this._walls[id] > 1) {
+            priorityWalls++;
+          }
+        }
+      } while (this._dug / area < this._options.dugPercentage || priorityWalls);
+      /* fixme number of priority walls */
+
+
+      this._addDoors();
+
+      if (callback) {
+        for (var i = 0; i < this._width; i++) {
+          for (var j = 0; j < this._height; j++) {
+            callback(i, j, this._map[i][j]);
+          }
+        }
+      }
+
+      this._walls = {};
+      this._map = [];
+      return this;
+    };
+
+    _proto27._digCallback = function _digCallback(x, y, value) {
+      if (value == 0 || value == 2) {
+        /* empty */
+        this._map[x][y] = 0;
+        this._dug++;
+      } else {
+        /* wall */
+        this._walls[x + "," + y] = 1;
+      }
+    };
+
+    _proto27._isWallCallback = function _isWallCallback(x, y) {
+      if (x < 0 || y < 0 || x >= this._width || y >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    _proto27._canBeDugCallback = function _canBeDugCallback(x, y) {
+      if (x < 1 || y < 1 || x + 1 >= this._width || y + 1 >= this._height) {
+        return false;
+      }
+
+      return this._map[x][y] == 1;
+    };
+
+    _proto27._priorityWallCallback = function _priorityWallCallback(x, y) {
+      this._walls[x + "," + y] = 2;
+    };
+
+    _proto27._firstRoom = function _firstRoom() {
+      var cx = Math.floor(this._width / 2);
+      var cy = Math.floor(this._height / 2);
+      var room = Room.createRandomCenter(cx, cy, this._options);
+
+      this._rooms.push(room);
+
+      room.create(this._digCallback);
+    };
+    /**
+     * Get a suitable wall
+     */
+
+
+    _proto27._findWall = function _findWall() {
+      var prio1 = [];
+      var prio2 = [];
+
+      for (var _id2 in this._walls) {
+        var prio = this._walls[_id2];
+
+        if (prio == 2) {
+          prio2.push(_id2);
+        } else {
+          prio1.push(_id2);
+        }
+      }
+
+      var arr = prio2.length ? prio2 : prio1;
+
+      if (!arr.length) {
+        return null;
+      }
+      /* no walls :/ */
+
+
+      var id = RNG$1.getItem(arr.sort()); // sort to make the order deterministic
+
+      delete this._walls[id];
+      return id;
+    };
+    /**
+     * Tries adding a feature
+     * @returns {bool} was this a successful try?
+     */
+
+
+    _proto27._tryFeature = function _tryFeature(x, y, dx, dy) {
+      var featureName = RNG$1.getWeightedValue(this._features);
+      var ctor = FEATURES[featureName];
+      var feature = ctor.createRandomAt(x, y, dx, dy, this._options);
+
+      if (!feature.isValid(this._isWallCallback, this._canBeDugCallback)) {
+        //		console.log("not valid");
+        //		feature.debug();
+        return false;
+      }
+
+      feature.create(this._digCallback); //	feature.debug();
+
+      if (feature instanceof Room) {
+        this._rooms.push(feature);
+      }
+
+      if (feature instanceof Corridor) {
+        feature.createPriorityWalls(this._priorityWallCallback);
+
+        this._corridors.push(feature);
+      }
+
+      return true;
+    };
+
+    _proto27._removeSurroundingWalls = function _removeSurroundingWalls(cx, cy) {
+      var deltas = DIRS[4];
+
+      for (var i = 0; i < deltas.length; i++) {
+        var delta = deltas[i];
+        var x = cx + delta[0];
+        var y = cy + delta[1];
+        delete this._walls[x + "," + y];
+        x = cx + 2 * delta[0];
+        y = cy + 2 * delta[1];
+        delete this._walls[x + "," + y];
+      }
+    };
+    /**
+     * Returns vector in "digging" direction, or false, if this does not exist (or is not unique)
+     */
+
+
+    _proto27._getDiggingDirection = function _getDiggingDirection(cx, cy) {
+      if (cx <= 0 || cy <= 0 || cx >= this._width - 1 || cy >= this._height - 1) {
+        return null;
+      }
+
+      var result = null;
+      var deltas = DIRS[4];
+
+      for (var i = 0; i < deltas.length; i++) {
+        var delta = deltas[i];
+        var x = cx + delta[0];
+        var y = cy + delta[1];
+
+        if (!this._map[x][y]) {
+          /* there already is another empty neighbor! */
+          if (result) {
+            return null;
+          }
+
+          result = delta;
+        }
+      }
+      /* no empty neighbor */
+
+
+      if (!result) {
+        return null;
+      }
+
+      return [-result[0], -result[1]];
+    };
+    /**
+     * Find empty spaces surrounding rooms, and apply doors.
+     */
+
+
+    _proto27._addDoors = function _addDoors() {
+      var data = this._map;
+
+      function isWallCallback(x, y) {
+        return data[x][y] == 1;
+      }
+
+      for (var i = 0; i < this._rooms.length; i++) {
+        var room = this._rooms[i];
+        room.clearDoors();
+        room.addDoors(isWallCallback);
+      }
+    };
+
+    return Digger;
+  }(Dungeon);
+  /**
+   * Join lists with "i" and "i+1"
+   */
+
+
+  function addToList(i, L, R) {
+    R[L[i + 1]] = R[i];
+    L[R[i]] = L[i + 1];
+    R[i] = i + 1;
+    L[i + 1] = i;
+  }
+  /**
+   * Remove "i" from its list
+   */
+
+
+  function removeFromList(i, L, R) {
+    R[L[i]] = R[i];
+    L[R[i]] = L[i];
+    R[i] = i;
+    L[i] = i;
+  }
+  /**
+   * Maze generator - Eller's algorithm
+   * See http://homepages.cwi.nl/~tromp/maze.html for explanation
+   */
+
+
+  var EllerMaze =
+  /*#__PURE__*/
+  function (_Map4) {
+    _inheritsLoose(EllerMaze, _Map4);
+
+    function EllerMaze() {
+      return _Map4.apply(this, arguments) || this;
+    }
+
+    var _proto28 = EllerMaze.prototype;
+
+    _proto28.create = function create(callback) {
+      var map = this._fillMap(1);
+
+      var w = Math.ceil((this._width - 2) / 2);
+      var rand = 9 / 24;
+      var L = [];
+      var R = [];
+
+      for (var i = 0; i < w; i++) {
+        L.push(i);
+        R.push(i);
+      }
+
+      L.push(w - 1);
+      /* fake stop-block at the right side */
+
+      var j;
+
+      for (j = 1; j + 3 < this._height; j += 2) {
+        /* one row */
+        for (var _i4 = 0; _i4 < w; _i4++) {
+          /* cell coords (will be always empty) */
+          var x = 2 * _i4 + 1;
+          var y = j;
+          map[x][y] = 0;
+          /* right connection */
+
+          if (_i4 != L[_i4 + 1] && RNG$1.getUniform() > rand) {
+            addToList(_i4, L, R);
+            map[x + 1][y] = 0;
+          }
+          /* bottom connection */
+
+
+          if (_i4 != L[_i4] && RNG$1.getUniform() > rand) {
+            /* remove connection */
+            removeFromList(_i4, L, R);
+          } else {
+            /* create connection */
+            map[x][y + 1] = 0;
+          }
+        }
+      }
+      /* last row */
+
+
+      for (var _i5 = 0; _i5 < w; _i5++) {
+        /* cell coords (will be always empty) */
+        var _x2 = 2 * _i5 + 1;
+
+        var _y2 = j;
+        map[_x2][_y2] = 0;
+        /* right connection */
+
+        if (_i5 != L[_i5 + 1] && (_i5 == L[_i5] || RNG$1.getUniform() > rand)) {
+          /* dig right also if the cell is separated, so it gets connected to the rest of maze */
+          addToList(_i5, L, R);
+          map[_x2 + 1][_y2] = 0;
+        }
+
+        removeFromList(_i5, L, R);
+      }
+
+      for (var _i6 = 0; _i6 < this._width; _i6++) {
+        for (var _j = 0; _j < this._height; _j++) {
+          callback(_i6, _j, map[_i6][_j]);
+        }
+      }
+
+      return this;
+    };
+
+    return EllerMaze;
+  }(Map);
+  /**
+   * @class Recursively divided maze, http://en.wikipedia.org/wiki/Maze_generation_algorithm#Recursive_division_method
+   * @augments ROT.Map
+   */
+
+
+  var DividedMaze =
+  /*#__PURE__*/
+  function (_Map5) {
+    _inheritsLoose(DividedMaze, _Map5);
+
+    function DividedMaze() {
+      var _this16;
+
+      _this16 = _Map5.apply(this, arguments) || this;
+      _this16._stack = [];
+      _this16._map = [];
+      return _this16;
+    }
+
+    var _proto29 = DividedMaze.prototype;
+
+    _proto29.create = function create(callback) {
+      var w = this._width;
+      var h = this._height;
+      this._map = [];
+
+      for (var i = 0; i < w; i++) {
+        this._map.push([]);
+
+        for (var j = 0; j < h; j++) {
+          var border = i == 0 || j == 0 || i + 1 == w || j + 1 == h;
+
+          this._map[i].push(border ? 1 : 0);
+        }
+      }
+
+      this._stack = [[1, 1, w - 2, h - 2]];
+
+      this._process();
+
+      for (var _i7 = 0; _i7 < w; _i7++) {
+        for (var _j2 = 0; _j2 < h; _j2++) {
+          callback(_i7, _j2, this._map[_i7][_j2]);
+        }
+      }
+
+      this._map = [];
+      return this;
+    };
+
+    _proto29._process = function _process() {
+      while (this._stack.length) {
+        var room = this._stack.shift();
+        /* [left, top, right, bottom] */
+
+
+        this._partitionRoom(room);
+      }
+    };
+
+    _proto29._partitionRoom = function _partitionRoom(room) {
+      var availX = [];
+      var availY = [];
+
+      for (var i = room[0] + 1; i < room[2]; i++) {
+        var top = this._map[i][room[1] - 1];
+        var bottom = this._map[i][room[3] + 1];
+
+        if (top && bottom && !(i % 2)) {
+          availX.push(i);
+        }
+      }
+
+      for (var j = room[1] + 1; j < room[3]; j++) {
+        var left = this._map[room[0] - 1][j];
+        var right = this._map[room[2] + 1][j];
+
+        if (left && right && !(j % 2)) {
+          availY.push(j);
+        }
+      }
+
+      if (!availX.length || !availY.length) {
+        return;
+      }
+
+      var x = RNG$1.getItem(availX);
+      var y = RNG$1.getItem(availY);
+      this._map[x][y] = 1;
+      var walls = [];
+      var w = [];
+      walls.push(w);
+      /* left part */
+
+      for (var _i8 = room[0]; _i8 < x; _i8++) {
+        this._map[_i8][y] = 1;
+        w.push([_i8, y]);
+      }
+
+      w = [];
+      walls.push(w);
+      /* right part */
+
+      for (var _i9 = x + 1; _i9 <= room[2]; _i9++) {
+        this._map[_i9][y] = 1;
+        w.push([_i9, y]);
+      }
+
+      w = [];
+      walls.push(w);
+      /* top part */
+
+      for (var _j3 = room[1]; _j3 < y; _j3++) {
+        this._map[x][_j3] = 1;
+        w.push([x, _j3]);
+      }
+
+      w = [];
+      walls.push(w);
+      /* bottom part */
+
+      for (var _j4 = y + 1; _j4 <= room[3]; _j4++) {
+        this._map[x][_j4] = 1;
+        w.push([x, _j4]);
+      }
+
+      var solid = RNG$1.getItem(walls);
+
+      for (var _i10 = 0; _i10 < walls.length; _i10++) {
+        var _w = walls[_i10];
+
+        if (_w == solid) {
+          continue;
+        }
+
+        var hole = RNG$1.getItem(_w);
+        this._map[hole[0]][hole[1]] = 0;
+      }
+
+      this._stack.push([room[0], room[1], x - 1, y - 1]);
+      /* left top */
+
+
+      this._stack.push([x + 1, room[1], room[2], y - 1]);
+      /* right top */
+
+
+      this._stack.push([room[0], y + 1, x - 1, room[3]]);
+      /* left bottom */
+
+
+      this._stack.push([x + 1, y + 1, room[2], room[3]]);
+      /* right bottom */
+
+    };
+
+    return DividedMaze;
+  }(Map);
+  /**
+   * Icey's Maze generator
+   * See http://www.roguebasin.roguelikedevelopment.org/index.php?title=Simple_maze for explanation
+   */
+
+
+  var IceyMaze =
+  /*#__PURE__*/
+  function (_Map6) {
+    _inheritsLoose(IceyMaze, _Map6);
+
+    function IceyMaze(width, height, regularity) {
+      var _this17;
+
+      if (regularity === void 0) {
+        regularity = 0;
+      }
+
+      _this17 = _Map6.call(this, width, height) || this;
+      _this17._regularity = regularity;
+      _this17._map = [];
+      return _this17;
+    }
+
+    var _proto30 = IceyMaze.prototype;
+
+    _proto30.create = function create(callback) {
+      var width = this._width;
+      var height = this._height;
+
+      var map = this._fillMap(1);
+
+      width -= width % 2 ? 1 : 2;
+      height -= height % 2 ? 1 : 2;
+      var cx = 0;
+      var cy = 0;
+      var nx = 0;
+      var ny = 0;
+      var done = 0;
+      var blocked = false;
+      var dirs = [[0, 0], [0, 0], [0, 0], [0, 0]];
+
+      do {
+        cx = 1 + 2 * Math.floor(RNG$1.getUniform() * (width - 1) / 2);
+        cy = 1 + 2 * Math.floor(RNG$1.getUniform() * (height - 1) / 2);
+
+        if (!done) {
+          map[cx][cy] = 0;
+        }
+
+        if (!map[cx][cy]) {
+          this._randomize(dirs);
+
+          do {
+            if (Math.floor(RNG$1.getUniform() * (this._regularity + 1)) == 0) {
+              this._randomize(dirs);
+            }
+
+            blocked = true;
+
+            for (var i = 0; i < 4; i++) {
+              nx = cx + dirs[i][0] * 2;
+              ny = cy + dirs[i][1] * 2;
+
+              if (this._isFree(map, nx, ny, width, height)) {
+                map[nx][ny] = 0;
+                map[cx + dirs[i][0]][cy + dirs[i][1]] = 0;
+                cx = nx;
+                cy = ny;
+                blocked = false;
+                done++;
+                break;
+              }
+            }
+          } while (!blocked);
+        }
+      } while (done + 1 < width * height / 4);
+
+      for (var _i11 = 0; _i11 < this._width; _i11++) {
+        for (var j = 0; j < this._height; j++) {
+          callback(_i11, j, map[_i11][j]);
+        }
+      }
+
+      this._map = [];
+      return this;
+    };
+
+    _proto30._randomize = function _randomize(dirs) {
+      for (var i = 0; i < 4; i++) {
+        dirs[i][0] = 0;
+        dirs[i][1] = 0;
+      }
+
+      switch (Math.floor(RNG$1.getUniform() * 4)) {
+        case 0:
+          dirs[0][0] = -1;
+          dirs[1][0] = 1;
+          dirs[2][1] = -1;
+          dirs[3][1] = 1;
+          break;
+
+        case 1:
+          dirs[3][0] = -1;
+          dirs[2][0] = 1;
+          dirs[1][1] = -1;
+          dirs[0][1] = 1;
+          break;
+
+        case 2:
+          dirs[2][0] = -1;
+          dirs[3][0] = 1;
+          dirs[0][1] = -1;
+          dirs[1][1] = 1;
+          break;
+
+        case 3:
+          dirs[1][0] = -1;
+          dirs[0][0] = 1;
+          dirs[3][1] = -1;
+          dirs[2][1] = 1;
+          break;
+      }
+    };
+
+    _proto30._isFree = function _isFree(map, x, y, width, height) {
+      if (x < 1 || y < 1 || x >= width || y >= height) {
+        return false;
+      }
+
+      return map[x][y];
+    };
+
+    return IceyMaze;
+  }(Map);
+  /**
+   * Dungeon generator which uses the "orginal" Rogue dungeon generation algorithm. See http://kuoi.com/~kamikaze/GameDesign/art07_rogue_dungeon.php
+   * @author hyakugei
+   */
+
+
+  var Rogue =
+  /*#__PURE__*/
+  function (_Map7) {
+    _inheritsLoose(Rogue, _Map7);
+
+    function Rogue(width, height, options) {
+      var _this18;
+
+      _this18 = _Map7.call(this, width, height) || this;
+      _this18.map = [];
+      _this18.rooms = [];
+      _this18.connectedCells = [];
+      options = Object.assign({
+        cellWidth: 3,
+        cellHeight: 3 //     ie. as an array with min-max values for each direction....
+
+      }, options);
+      /*
+      Set the room sizes according to the over-all width of the map,
+      and the cell sizes.
+      */
+
+      if (!options.hasOwnProperty("roomWidth")) {
+        options["roomWidth"] = _this18._calculateRoomSize(_this18._width, options["cellWidth"]);
+      }
+
+      if (!options.hasOwnProperty("roomHeight")) {
+        options["roomHeight"] = _this18._calculateRoomSize(_this18._height, options["cellHeight"]);
+      }
+
+      _this18._options = options;
+      return _this18;
+    }
+
+    var _proto31 = Rogue.prototype;
+
+    _proto31.create = function create(callback) {
+      this.map = this._fillMap(1);
+      this.rooms = [];
+      this.connectedCells = [];
+
+      this._initRooms();
+
+      this._connectRooms();
+
+      this._connectUnconnectedRooms();
+
+      this._createRandomRoomConnections();
+
+      this._createRooms();
+
+      this._createCorridors();
+
+      if (callback) {
+        for (var i = 0; i < this._width; i++) {
+          for (var j = 0; j < this._height; j++) {
+            callback(i, j, this.map[i][j]);
+          }
+        }
+      }
+
+      return this;
+    };
+
+    _proto31._calculateRoomSize = function _calculateRoomSize(size, cell) {
+      var max = Math.floor(size / cell * 0.8);
+      var min = Math.floor(size / cell * 0.25);
+
+      if (min < 2) {
+        min = 2;
+      }
+
+      if (max < 2) {
+        max = 2;
+      }
+
+      return [min, max];
+    };
+
+    _proto31._initRooms = function _initRooms() {
+      // create rooms array. This is the "grid" list from the algo.
+      for (var i = 0; i < this._options.cellWidth; i++) {
+        this.rooms.push([]);
+
+        for (var j = 0; j < this._options.cellHeight; j++) {
+          this.rooms[i].push({
+            "x": 0,
+            "y": 0,
+            "width": 0,
+            "height": 0,
+            "connections": [],
+            "cellx": i,
+            "celly": j
+          });
+        }
+      }
+    };
+
+    _proto31._connectRooms = function _connectRooms() {
+      //pick random starting grid
+      var cgx = RNG$1.getUniformInt(0, this._options.cellWidth - 1);
+      var cgy = RNG$1.getUniformInt(0, this._options.cellHeight - 1);
+      var idx;
+      var ncgx;
+      var ncgy;
+      var found = false;
+      var room;
+      var otherRoom;
+      var dirToCheck; // find  unconnected neighbour cells
+
+      do {
+        //dirToCheck = [0, 1, 2, 3, 4, 5, 6, 7];
+        dirToCheck = [0, 2, 4, 6];
+        dirToCheck = RNG$1.shuffle(dirToCheck);
+
+        do {
+          found = false;
+          idx = dirToCheck.pop();
+          ncgx = cgx + DIRS[8][idx][0];
+          ncgy = cgy + DIRS[8][idx][1];
+
+          if (ncgx < 0 || ncgx >= this._options.cellWidth) {
+            continue;
+          }
+
+          if (ncgy < 0 || ncgy >= this._options.cellHeight) {
+            continue;
+          }
+
+          room = this.rooms[cgx][cgy];
+
+          if (room["connections"].length > 0) {
+            // as long as this room doesn't already coonect to me, we are ok with it.
+            if (room["connections"][0][0] == ncgx && room["connections"][0][1] == ncgy) {
+              break;
+            }
+          }
+
+          otherRoom = this.rooms[ncgx][ncgy];
+
+          if (otherRoom["connections"].length == 0) {
+            otherRoom["connections"].push([cgx, cgy]);
+            this.connectedCells.push([ncgx, ncgy]);
+            cgx = ncgx;
+            cgy = ncgy;
+            found = true;
+          }
+        } while (dirToCheck.length > 0 && found == false);
+      } while (dirToCheck.length > 0);
+    };
+
+    _proto31._connectUnconnectedRooms = function _connectUnconnectedRooms() {
+      //While there are unconnected rooms, try to connect them to a random connected neighbor
+      //(if a room has no connected neighbors yet, just keep cycling, you'll fill out to it eventually).
+      var cw = this._options.cellWidth;
+      var ch = this._options.cellHeight;
+      this.connectedCells = RNG$1.shuffle(this.connectedCells);
+      var room;
+      var otherRoom;
+      var validRoom;
+
+      for (var i = 0; i < this._options.cellWidth; i++) {
+        for (var j = 0; j < this._options.cellHeight; j++) {
+          room = this.rooms[i][j];
+
+          if (room["connections"].length == 0) {
+            var directions = [0, 2, 4, 6];
+            directions = RNG$1.shuffle(directions);
+            validRoom = false;
+
+            do {
+              var dirIdx = directions.pop();
+              var newI = i + DIRS[8][dirIdx][0];
+              var newJ = j + DIRS[8][dirIdx][1];
+
+              if (newI < 0 || newI >= cw || newJ < 0 || newJ >= ch) {
+                continue;
+              }
+
+              otherRoom = this.rooms[newI][newJ];
+              validRoom = true;
+
+              if (otherRoom["connections"].length == 0) {
+                break;
+              }
+
+              for (var k = 0; k < otherRoom["connections"].length; k++) {
+                if (otherRoom["connections"][k][0] == i && otherRoom["connections"][k][1] == j) {
+                  validRoom = false;
+                  break;
+                }
+              }
+
+              if (validRoom) {
+                break;
+              }
+            } while (directions.length);
+
+            if (validRoom) {
+              room["connections"].push([otherRoom["cellx"], otherRoom["celly"]]);
+            } else {
+              console.log("-- Unable to connect room.");
+            }
+          }
+        }
+      }
+    };
+
+    _proto31._createRandomRoomConnections = function _createRandomRoomConnections() {// Empty for now.
+    };
+
+    _proto31._createRooms = function _createRooms() {
+      var w = this._width;
+      var h = this._height;
+      var cw = this._options.cellWidth;
+      var ch = this._options.cellHeight;
+      var cwp = Math.floor(this._width / cw);
+      var chp = Math.floor(this._height / ch);
+      var roomw;
+      var roomh;
+      var roomWidth = this._options["roomWidth"];
+      var roomHeight = this._options["roomHeight"];
+      var sx;
+      var sy;
+      var otherRoom;
+
+      for (var i = 0; i < cw; i++) {
+        for (var j = 0; j < ch; j++) {
+          sx = cwp * i;
+          sy = chp * j;
+
+          if (sx == 0) {
+            sx = 1;
+          }
+
+          if (sy == 0) {
+            sy = 1;
+          }
+
+          roomw = RNG$1.getUniformInt(roomWidth[0], roomWidth[1]);
+          roomh = RNG$1.getUniformInt(roomHeight[0], roomHeight[1]);
+
+          if (j > 0) {
+            otherRoom = this.rooms[i][j - 1];
+
+            while (sy - (otherRoom["y"] + otherRoom["height"]) < 3) {
+              sy++;
+            }
+          }
+
+          if (i > 0) {
+            otherRoom = this.rooms[i - 1][j];
+
+            while (sx - (otherRoom["x"] + otherRoom["width"]) < 3) {
+              sx++;
+            }
+          }
+
+          var sxOffset = Math.round(RNG$1.getUniformInt(0, cwp - roomw) / 2);
+          var syOffset = Math.round(RNG$1.getUniformInt(0, chp - roomh) / 2);
+
+          while (sx + sxOffset + roomw >= w) {
+            if (sxOffset) {
+              sxOffset--;
+            } else {
+              roomw--;
+            }
+          }
+
+          while (sy + syOffset + roomh >= h) {
+            if (syOffset) {
+              syOffset--;
+            } else {
+              roomh--;
+            }
+          }
+
+          sx = sx + sxOffset;
+          sy = sy + syOffset;
+          this.rooms[i][j]["x"] = sx;
+          this.rooms[i][j]["y"] = sy;
+          this.rooms[i][j]["width"] = roomw;
+          this.rooms[i][j]["height"] = roomh;
+
+          for (var ii = sx; ii < sx + roomw; ii++) {
+            for (var jj = sy; jj < sy + roomh; jj++) {
+              this.map[ii][jj] = 0;
+            }
+          }
+        }
+      }
+    };
+
+    _proto31._getWallPosition = function _getWallPosition(aRoom, aDirection) {
+      var rx;
+      var ry;
+      var door;
+
+      if (aDirection == 1 || aDirection == 3) {
+        rx = RNG$1.getUniformInt(aRoom["x"] + 1, aRoom["x"] + aRoom["width"] - 2);
+
+        if (aDirection == 1) {
+          ry = aRoom["y"] - 2;
+          door = ry + 1;
+        } else {
+          ry = aRoom["y"] + aRoom["height"] + 1;
+          door = ry - 1;
+        }
+
+        this.map[rx][door] = 0; // i'm not setting a specific 'door' tile value right now, just empty space.
+      } else {
+        ry = RNG$1.getUniformInt(aRoom["y"] + 1, aRoom["y"] + aRoom["height"] - 2);
+
+        if (aDirection == 2) {
+          rx = aRoom["x"] + aRoom["width"] + 1;
+          door = rx - 1;
+        } else {
+          rx = aRoom["x"] - 2;
+          door = rx + 1;
+        }
+
+        this.map[door][ry] = 0; // i'm not setting a specific 'door' tile value right now, just empty space.
+      }
+
+      return [rx, ry];
+    };
+
+    _proto31._drawCorridor = function _drawCorridor(startPosition, endPosition) {
+      var xOffset = endPosition[0] - startPosition[0];
+      var yOffset = endPosition[1] - startPosition[1];
+      var xpos = startPosition[0];
+      var ypos = startPosition[1];
+      var tempDist;
+      var xDir;
+      var yDir;
+      var move; // 2 element array, element 0 is the direction, element 1 is the total value to move.
+
+      var moves = []; // a list of 2 element arrays
+
+      var xAbs = Math.abs(xOffset);
+      var yAbs = Math.abs(yOffset);
+      var percent = RNG$1.getUniform(); // used to split the move at different places along the long axis
+
+      var firstHalf = percent;
+      var secondHalf = 1 - percent;
+      xDir = xOffset > 0 ? 2 : 6;
+      yDir = yOffset > 0 ? 4 : 0;
+
+      if (xAbs < yAbs) {
+        // move firstHalf of the y offset
+        tempDist = Math.ceil(yAbs * firstHalf);
+        moves.push([yDir, tempDist]); // move all the x offset
+
+        moves.push([xDir, xAbs]); // move sendHalf of the  y offset
+
+        tempDist = Math.floor(yAbs * secondHalf);
+        moves.push([yDir, tempDist]);
+      } else {
+        //  move firstHalf of the x offset
+        tempDist = Math.ceil(xAbs * firstHalf);
+        moves.push([xDir, tempDist]); // move all the y offset
+
+        moves.push([yDir, yAbs]); // move secondHalf of the x offset.
+
+        tempDist = Math.floor(xAbs * secondHalf);
+        moves.push([xDir, tempDist]);
+      }
+
+      this.map[xpos][ypos] = 0;
+
+      while (moves.length > 0) {
+        move = moves.pop();
+
+        while (move[1] > 0) {
+          xpos += DIRS[8][move[0]][0];
+          ypos += DIRS[8][move[0]][1];
+          this.map[xpos][ypos] = 0;
+          move[1] = move[1] - 1;
+        }
+      }
+    };
+
+    _proto31._createCorridors = function _createCorridors() {
+      // Draw Corridors between connected rooms
+      var cw = this._options.cellWidth;
+      var ch = this._options.cellHeight;
+      var room;
+      var connection;
+      var otherRoom;
+      var wall;
+      var otherWall;
+
+      for (var i = 0; i < cw; i++) {
+        for (var j = 0; j < ch; j++) {
+          room = this.rooms[i][j];
+
+          for (var k = 0; k < room["connections"].length; k++) {
+            connection = room["connections"][k];
+            otherRoom = this.rooms[connection[0]][connection[1]]; // figure out what wall our corridor will start one.
+            // figure out what wall our corridor will end on.
+
+            if (otherRoom["cellx"] > room["cellx"]) {
+              wall = 2;
+              otherWall = 4;
+            } else if (otherRoom["cellx"] < room["cellx"]) {
+              wall = 4;
+              otherWall = 2;
+            } else if (otherRoom["celly"] > room["celly"]) {
+              wall = 3;
+              otherWall = 1;
+            } else {
+              wall = 1;
+              otherWall = 3;
+            }
+
+            this._drawCorridor(this._getWallPosition(room, wall), this._getWallPosition(otherRoom, otherWall));
+          }
+        }
+      }
+    };
+
+    return Rogue;
+  }(Map);
+
+  var index$2 = {
+    Arena: Arena,
+    Uniform: Uniform,
+    Cellular: Cellular,
+    Digger: Digger,
+    EllerMaze: EllerMaze,
+    DividedMaze: DividedMaze,
+    IceyMaze: IceyMaze,
+    Rogue: Rogue
+  };
+  /**
+   * Base noise generator
+   */
+
+  var Noise = function Noise() {};
+
+  var F2 = 0.5 * (Math.sqrt(3) - 1);
+  var G2 = (3 - Math.sqrt(3)) / 6;
+  /**
+   * A simple 2d implementation of simplex noise by Ondrej Zara
+   *
+   * Based on a speed-improved simplex noise algorithm for 2D, 3D and 4D in Java.
+   * Which is based on example code by Stefan Gustavson (stegu@itn.liu.se).
+   * With Optimisations by Peter Eastman (peastman@drizzle.stanford.edu).
+   * Better rank ordering method by Stefan Gustavson in 2012.
+   */
+
+  var Simplex =
+  /*#__PURE__*/
+  function (_Noise) {
+    _inheritsLoose(Simplex, _Noise);
+
+    /**
+     * @param gradients Random gradients
+     */
+    function Simplex(gradients) {
+      var _this19;
+
+      if (gradients === void 0) {
+        gradients = 256;
+      }
+
+      _this19 = _Noise.call(this) || this;
+      _this19._gradients = [[0, -1], [1, -1], [1, 0], [1, 1], [0, 1], [-1, 1], [-1, 0], [-1, -1]];
+      var permutations = [];
+
+      for (var i = 0; i < gradients; i++) {
+        permutations.push(i);
+      }
+
+      permutations = RNG$1.shuffle(permutations);
+      _this19._perms = [];
+      _this19._indexes = [];
+
+      for (var _i12 = 0; _i12 < 2 * gradients; _i12++) {
+        _this19._perms.push(permutations[_i12 % gradients]);
+
+        _this19._indexes.push(_this19._perms[_i12] % _this19._gradients.length);
+      }
+
+      return _this19;
+    }
+
+    var _proto32 = Simplex.prototype;
+
+    _proto32.get = function get(xin, yin) {
+      var perms = this._perms;
+      var indexes = this._indexes;
+      var count = perms.length / 2;
+      var n0 = 0,
+          n1 = 0,
+          n2 = 0,
+          gi; // Noise contributions from the three corners
+      // Skew the input space to determine which simplex cell we're in
+
+      var s = (xin + yin) * F2; // Hairy factor for 2D
+
+      var i = Math.floor(xin + s);
+      var j = Math.floor(yin + s);
+      var t = (i + j) * G2;
+      var X0 = i - t; // Unskew the cell origin back to (x,y) space
+
+      var Y0 = j - t;
+      var x0 = xin - X0; // The x,y distances from the cell origin
+
+      var y0 = yin - Y0; // For the 2D case, the simplex shape is an equilateral triangle.
+      // Determine which simplex we are in.
+
+      var i1, j1; // Offsets for second (middle) corner of simplex in (i,j) coords
+
+      if (x0 > y0) {
+        i1 = 1;
+        j1 = 0;
+      } else {
+        // lower triangle, XY order: (0,0)->(1,0)->(1,1)
+        i1 = 0;
+        j1 = 1;
+      } // upper triangle, YX order: (0,0)->(0,1)->(1,1)
+      // A step of (1,0) in (i,j) means a step of (1-c,-c) in (x,y), and
+      // a step of (0,1) in (i,j) means a step of (-c,1-c) in (x,y), where
+      // c = (3-sqrt(3))/6
+
+
+      var x1 = x0 - i1 + G2; // Offsets for middle corner in (x,y) unskewed coords
+
+      var y1 = y0 - j1 + G2;
+      var x2 = x0 - 1 + 2 * G2; // Offsets for last corner in (x,y) unskewed coords
+
+      var y2 = y0 - 1 + 2 * G2; // Work out the hashed gradient indices of the three simplex corners
+
+      var ii = mod(i, count);
+      var jj = mod(j, count); // Calculate the contribution from the three corners
+
+      var t0 = 0.5 - x0 * x0 - y0 * y0;
+
+      if (t0 >= 0) {
+        t0 *= t0;
+        gi = indexes[ii + perms[jj]];
+        var grad = this._gradients[gi];
+        n0 = t0 * t0 * (grad[0] * x0 + grad[1] * y0);
+      }
+
+      var t1 = 0.5 - x1 * x1 - y1 * y1;
+
+      if (t1 >= 0) {
+        t1 *= t1;
+        gi = indexes[ii + i1 + perms[jj + j1]];
+        var _grad = this._gradients[gi];
+        n1 = t1 * t1 * (_grad[0] * x1 + _grad[1] * y1);
+      }
+
+      var t2 = 0.5 - x2 * x2 - y2 * y2;
+
+      if (t2 >= 0) {
+        t2 *= t2;
+        gi = indexes[ii + 1 + perms[jj + 1]];
+        var _grad2 = this._gradients[gi];
+        n2 = t2 * t2 * (_grad2[0] * x2 + _grad2[1] * y2);
+      } // Add contributions from each corner to get the final noise value.
+      // The result is scaled to return values in the interval [-1,1].
+
+
+      return 70 * (n0 + n1 + n2);
+    };
+
+    return Simplex;
+  }(Noise);
+
+  var index$3 = {
+    Simplex: Simplex
+  };
+  /**
+   * @class Abstract pathfinder
+   * @param {int} toX Target X coord
+   * @param {int} toY Target Y coord
+   * @param {function} passableCallback Callback to determine map passability
+   * @param {object} [options]
+   * @param {int} [options.topology=8]
+   */
+
+  var Path =
+  /*#__PURE__*/
+  function () {
+    function Path(toX, toY, passableCallback, options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._toX = toX;
+      this._toY = toY;
+      this._passableCallback = passableCallback;
+      this._options = Object.assign({
+        topology: 8
+      }, options);
+      this._dirs = DIRS[this._options.topology];
+
+      if (this._options.topology == 8) {
+        /* reorder dirs for more aesthetic result (vertical/horizontal first) */
+        this._dirs = [this._dirs[0], this._dirs[2], this._dirs[4], this._dirs[6], this._dirs[1], this._dirs[3], this._dirs[5], this._dirs[7]];
+      }
+    }
+
+    var _proto33 = Path.prototype;
+
+    _proto33._getNeighbors = function _getNeighbors(cx, cy) {
+      var result = [];
+
+      for (var i = 0; i < this._dirs.length; i++) {
+        var dir = this._dirs[i];
+        var x = cx + dir[0];
+        var y = cy + dir[1];
+
+        if (!this._passableCallback(x, y)) {
+          continue;
+        }
+
+        result.push([x, y]);
+      }
+
+      return result;
+    };
+
+    return Path;
+  }();
+  /**
+   * @class Simplified Dijkstra's algorithm: all edges have a value of 1
+   * @augments ROT.Path
+   * @see ROT.Path
+   */
+
+
+  var Dijkstra =
+  /*#__PURE__*/
+  function (_Path) {
+    _inheritsLoose(Dijkstra, _Path);
+
+    function Dijkstra(toX, toY, passableCallback, options) {
+      var _this20;
+
+      _this20 = _Path.call(this, toX, toY, passableCallback, options) || this;
+      _this20._computed = {};
+      _this20._todo = [];
+
+      _this20._add(toX, toY, null);
+
+      return _this20;
+    }
+    /**
+     * Compute a path from a given point
+     * @see ROT.Path#compute
+     */
+
+
+    var _proto34 = Dijkstra.prototype;
+
+    _proto34.compute = function compute(fromX, fromY, callback) {
+      var key = fromX + "," + fromY;
+
+      if (!(key in this._computed)) {
+        this._compute(fromX, fromY);
+      }
+
+      if (!(key in this._computed)) {
+        return;
+      }
+
+      var item = this._computed[key];
+
+      while (item) {
+        callback(item.x, item.y);
+        item = item.prev;
+      }
+    };
+    /**
+     * Compute a non-cached value
+     */
+
+
+    _proto34._compute = function _compute(fromX, fromY) {
+      while (this._todo.length) {
+        var item = this._todo.shift();
+
+        if (item.x == fromX && item.y == fromY) {
+          return;
+        }
+
+        var neighbors = this._getNeighbors(item.x, item.y);
+
+        for (var i = 0; i < neighbors.length; i++) {
+          var neighbor = neighbors[i];
+          var x = neighbor[0];
+          var y = neighbor[1];
+          var id = x + "," + y;
+
+          if (id in this._computed) {
+            continue;
+          }
+          /* already done */
+
+
+          this._add(x, y, item);
+        }
+      }
+    };
+
+    _proto34._add = function _add(x, y, prev) {
+      var obj = {
+        x: x,
+        y: y,
+        prev: prev
+      };
+      this._computed[x + "," + y] = obj;
+
+      this._todo.push(obj);
+    };
+
+    return Dijkstra;
+  }(Path);
+  /**
+   * @class Simplified A* algorithm: all edges have a value of 1
+   * @augments ROT.Path
+   * @see ROT.Path
+   */
+
+
+  var AStar =
+  /*#__PURE__*/
+  function (_Path2) {
+    _inheritsLoose(AStar, _Path2);
+
+    function AStar(toX, toY, passableCallback, options) {
+      var _this21;
+
+      if (options === void 0) {
+        options = {};
+      }
+
+      _this21 = _Path2.call(this, toX, toY, passableCallback, options) || this;
+      _this21._todo = [];
+      _this21._done = {};
+      return _this21;
+    }
+    /**
+     * Compute a path from a given point
+     * @see ROT.Path#compute
+     */
+
+
+    var _proto35 = AStar.prototype;
+
+    _proto35.compute = function compute(fromX, fromY, callback) {
+      this._todo = [];
+      this._done = {};
+      this._fromX = fromX;
+      this._fromY = fromY;
+
+      this._add(this._toX, this._toY, null);
+
+      while (this._todo.length) {
+        var _item = this._todo.shift();
+
+        var id = _item.x + "," + _item.y;
+
+        if (id in this._done) {
+          continue;
+        }
+
+        this._done[id] = _item;
+
+        if (_item.x == fromX && _item.y == fromY) {
+          break;
+        }
+
+        var neighbors = this._getNeighbors(_item.x, _item.y);
+
+        for (var i = 0; i < neighbors.length; i++) {
+          var neighbor = neighbors[i];
+          var x = neighbor[0];
+          var y = neighbor[1];
+
+          var _id3 = x + "," + y;
+
+          if (_id3 in this._done) {
+            continue;
+          }
+
+          this._add(x, y, _item);
+        }
+      }
+
+      var item = this._done[fromX + "," + fromY];
+
+      if (!item) {
+        return;
+      }
+
+      while (item) {
+        callback(item.x, item.y);
+        item = item.prev;
+      }
+    };
+
+    _proto35._add = function _add(x, y, prev) {
+      var h = this._distance(x, y);
+
+      var obj = {
+        x: x,
+        y: y,
+        prev: prev,
+        g: prev ? prev.g + 1 : 0,
+        h: h
+      };
+      /* insert into priority queue */
+
+      var f = obj.g + obj.h;
+
+      for (var i = 0; i < this._todo.length; i++) {
+        var item = this._todo[i];
+        var itemF = item.g + item.h;
+
+        if (f < itemF || f == itemF && h < item.h) {
+          this._todo.splice(i, 0, obj);
+
+          return;
+        }
+      }
+
+      this._todo.push(obj);
+    };
+
+    _proto35._distance = function _distance(x, y) {
+      switch (this._options.topology) {
+        case 4:
+          return Math.abs(x - this._fromX) + Math.abs(y - this._fromY);
+          break;
+
+        case 6:
+          var dx = Math.abs(x - this._fromX);
+          var dy = Math.abs(y - this._fromY);
+          return dy + Math.max(0, (dx - dy) / 2);
+          break;
+
+        case 8:
+          return Math.max(Math.abs(x - this._fromX), Math.abs(y - this._fromY));
+          break;
+      }
+    };
+
+    return AStar;
+  }(Path);
+
+  var index$4 = {
+    Dijkstra: Dijkstra,
+    AStar: AStar
+  };
+  /**
+   * @class Asynchronous main loop
+   * @param {ROT.Scheduler} scheduler
+   */
+
+  var Engine =
+  /*#__PURE__*/
+  function () {
+    function Engine(scheduler) {
+      this._scheduler = scheduler;
+      this._lock = 1;
+    }
+    /**
+     * Start the main loop. When this call returns, the loop is locked.
+     */
+
+
+    var _proto36 = Engine.prototype;
+
+    _proto36.start = function start() {
+      return this.unlock();
+    };
+    /**
+     * Interrupt the engine by an asynchronous action
+     */
+
+
+    _proto36.lock = function lock() {
+      this._lock++;
+      return this;
+    };
+    /**
+     * Resume execution (paused by a previous lock)
+     */
+
+
+    _proto36.unlock = function unlock() {
+      if (!this._lock) {
+        throw new Error("Cannot unlock unlocked engine");
+      }
+
+      this._lock--;
+
+      while (!this._lock) {
+        var actor = this._scheduler.next();
+
+        if (!actor) {
+          return this.lock();
+        }
+        /* no actors */
+
+
+        var result = actor.act();
+
+        if (result && result.then) {
+          /* actor returned a "thenable", looks like a Promise */
+          this.lock();
+          result.then(this.unlock.bind(this));
+        }
+      }
+
+      return this;
+    };
+
+    return Engine;
+  }();
+  /**
+   * Lighting computation, based on a traditional FOV for multiple light sources and multiple passes.
+   */
+
+
+  var Lighting =
+  /*#__PURE__*/
+  function () {
+    function Lighting(reflectivityCallback, options) {
+      if (options === void 0) {
+        options = {};
+      }
+
+      this._reflectivityCallback = reflectivityCallback;
+      this._options = {};
+      options = Object.assign({
+        passes: 1,
+        emissionThreshold: 100,
+        range: 10
+      }, options);
+      this._lights = {};
+      this._reflectivityCache = {};
+      this._fovCache = {};
+      this.setOptions(options);
+    }
+    /**
+     * Adjust options at runtime
+     */
+
+
+    var _proto37 = Lighting.prototype;
+
+    _proto37.setOptions = function setOptions(options) {
+      Object.assign(this._options, options);
+
+      if (options && options.range) {
+        this.reset();
+      }
+
+      return this;
+    };
+    /**
+     * Set the used Field-Of-View algo
+     */
+
+
+    _proto37.setFOV = function setFOV(fov) {
+      this._fov = fov;
+      this._fovCache = {};
+      return this;
+    };
+    /**
+     * Set (or remove) a light source
+     */
+
+
+    _proto37.setLight = function setLight(x, y, color) {
+      var key = x + "," + y;
+
+      if (color) {
+        this._lights[key] = typeof color == "string" ? fromString(color) : color;
+      } else {
+        delete this._lights[key];
+      }
+
+      return this;
+    };
+    /**
+     * Remove all light sources
+     */
+
+
+    _proto37.clearLights = function clearLights() {
+      this._lights = {};
+    };
+    /**
+     * Reset the pre-computed topology values. Call whenever the underlying map changes its light-passability.
+     */
+
+
+    _proto37.reset = function reset() {
+      this._reflectivityCache = {};
+      this._fovCache = {};
+      return this;
+    };
+    /**
+     * Compute the lighting
+     */
+
+
+    _proto37.compute = function compute(lightingCallback) {
+      var doneCells = {};
+      var emittingCells = {};
+      var litCells = {};
+
+      for (var key in this._lights) {
+        /* prepare emitters for first pass */
+        var light = this._lights[key];
+        emittingCells[key] = [0, 0, 0];
+        add_(emittingCells[key], light);
+      }
+
+      for (var i = 0; i < this._options.passes; i++) {
+        /* main loop */
+        this._emitLight(emittingCells, litCells, doneCells);
+
+        if (i + 1 == this._options.passes) {
+          continue;
+        }
+        /* not for the last pass */
+
+
+        emittingCells = this._computeEmitters(litCells, doneCells);
+      }
+
+      for (var litKey in litCells) {
+        /* let the user know what and how is lit */
+        var parts = litKey.split(",");
+        var x = parseInt(parts[0]);
+        var y = parseInt(parts[1]);
+        lightingCallback(x, y, litCells[litKey]);
+      }
+
+      return this;
+    };
+    /**
+     * Compute one iteration from all emitting cells
+     * @param emittingCells These emit light
+     * @param litCells Add projected light to these
+     * @param doneCells These already emitted, forbid them from further calculations
+     */
+
+
+    _proto37._emitLight = function _emitLight(emittingCells, litCells, doneCells) {
+      for (var key in emittingCells) {
+        var parts = key.split(",");
+        var x = parseInt(parts[0]);
+        var y = parseInt(parts[1]);
+
+        this._emitLightFromCell(x, y, emittingCells[key], litCells);
+
+        doneCells[key] = 1;
+      }
+
+      return this;
+    };
+    /**
+     * Prepare a list of emitters for next pass
+     */
+
+
+    _proto37._computeEmitters = function _computeEmitters(litCells, doneCells) {
+      var result = {};
+
+      for (var key in litCells) {
+        if (key in doneCells) {
+          continue;
+        }
+        /* already emitted */
+
+
+        var _color = litCells[key];
+        var reflectivity = void 0;
+
+        if (key in this._reflectivityCache) {
+          reflectivity = this._reflectivityCache[key];
+        } else {
+          var parts = key.split(",");
+          var x = parseInt(parts[0]);
+          var y = parseInt(parts[1]);
+          reflectivity = this._reflectivityCallback(x, y);
+          this._reflectivityCache[key] = reflectivity;
+        }
+
+        if (reflectivity == 0) {
+          continue;
+        }
+        /* will not reflect at all */
+
+        /* compute emission color */
+
+
+        var emission = [0, 0, 0];
+        var intensity = 0;
+
+        for (var i = 0; i < 3; i++) {
+          var part = Math.round(_color[i] * reflectivity);
+          emission[i] = part;
+          intensity += part;
+        }
+
+        if (intensity > this._options.emissionThreshold) {
+          result[key] = emission;
+        }
+      }
+
+      return result;
+    };
+    /**
+     * Compute one iteration from one cell
+     */
+
+
+    _proto37._emitLightFromCell = function _emitLightFromCell(x, y, color, litCells) {
+      var key = x + "," + y;
+      var fov;
+
+      if (key in this._fovCache) {
+        fov = this._fovCache[key];
+      } else {
+        fov = this._updateFOV(x, y);
+      }
+
+      for (var fovKey in fov) {
+        var formFactor = fov[fovKey];
+        var result = void 0;
+
+        if (fovKey in litCells) {
+          /* already lit */
+          result = litCells[fovKey];
+        } else {
+          /* newly lit */
+          result = [0, 0, 0];
+          litCells[fovKey] = result;
+        }
+
+        for (var i = 0; i < 3; i++) {
+          result[i] += Math.round(color[i] * formFactor);
+        }
+        /* add light color */
+
+      }
+
+      return this;
+    };
+    /**
+     * Compute FOV ("form factor") for a potential light source at [x,y]
+     */
+
+
+    _proto37._updateFOV = function _updateFOV(x, y) {
+      var key1 = x + "," + y;
+      var cache = {};
+      this._fovCache[key1] = cache;
+      var range = this._options.range;
+
+      function cb(x, y, r, vis) {
+        var key2 = x + "," + y;
+        var formFactor = vis * (1 - r / range);
+
+        if (formFactor == 0) {
+          return;
+        }
+
+        cache[key2] = formFactor;
+      }
+
+      this._fov.compute(x, y, range, cb.bind(this));
+
+      return cache;
+    };
+
+    return Lighting;
+  }();
+
+  var Util = util;
+  var Color = color;
+  var Text = text;
+  exports.Util = Util;
+  exports.Color = Color;
+  exports.Text = Text;
+  exports.RNG = RNG$1;
+  exports.Display = Display;
+  exports.StringGenerator = StringGenerator;
+  exports.EventQueue = EventQueue;
+  exports.Scheduler = index;
+  exports.FOV = index$1;
+  exports.Map = index$2;
+  exports.Noise = index$3;
+  exports.Path = index$4;
+  exports.Engine = Engine;
+  exports.Lighting = Lighting;
+  exports.DEFAULT_WIDTH = DEFAULT_WIDTH;
+  exports.DEFAULT_HEIGHT = DEFAULT_HEIGHT;
+  exports.DIRS = DIRS;
+  exports.KEYS = KEYS;
+  Object.defineProperty(exports, '__esModule', {
+    value: true
+  });
+});
+
diff --git a/rot.min.js b/rot.min.js
new file mode 100644
index 0000000..c8d1f38
--- /dev/null
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+e){this._queue.add(b,0);return d.prototype.add.call(this,b,e)};a.next=function(){null!==this._current&&-1!=this._repeat.indexOf(this._current)&&this._queue.add(this._current,0);return d.prototype.next.call(this)};return c}(x);B=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;a.add=function(b,e,a){this._queue.add(b,void 0!==a?a:1/b.getSpeed());return d.prototype.add.call(this,b,e)};a.next=function(){this._current&&-1!=this._repeat.indexOf(this._current)&&
+this._queue.add(this._current,1/this._current.getSpeed());return d.prototype.next.call(this)};return c}(x);x=function(d){function c(){var b=d.call(this)||this;b._defaultDuration=1;b._duration=b._defaultDuration;return b}_inheritsLoose(c,d);var a=c.prototype;a.add=function(b,e,a){this._queue.add(b,a||this._defaultDuration);return d.prototype.add.call(this,b,e)};a.clear=function(){this._duration=this._defaultDuration;return d.prototype.clear.call(this)};a.remove=function(b){b==this._current&&(this._duration=
+this._defaultDuration);return d.prototype.remove.call(this,b)};a.next=function(){null!==this._current&&-1!=this._repeat.indexOf(this._current)&&(this._queue.add(this._current,this._duration||this._defaultDuration),this._duration=this._defaultDuration);return d.prototype.next.call(this)};a.setDuration=function(b){this._current&&(this._duration=b);return this};return c}(x);F={Simple:F,Speed:B,Action:x};u=function(){function d(c,a){void 0===a&&(a={});this._lightPasses=c;this._options=Object.assign({topology:8},
+a)}d.prototype._getCircle=function(c,a,b){var e=[];switch(this._options.topology){case 4:var f=1;var m=[0,1];var k=[v[8][7],v[8][1],v[8][3],v[8][5]];break;case 6:k=v[6];f=1;m=[-1,1];break;case 8:k=v[4];f=2;m=[-1,1];break;default:throw Error("Incorrect topology for FOV computation");}c+=m[0]*b;a+=m[1]*b;for(m=0;m<k.length;m++)for(var h=0;h<b*f;h++)e.push([c,a]),c+=k[m][0],a+=k[m][1];return e};return d}();B=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;
+a.compute=function(b,e,a,m){m(b,e,0,1);if(this._lightPasses(b,e))for(var f=[],c,d,l,g,z,y=1;y<=a;y++)for(var q=this._getCircle(b,e,y),p=360/q.length,r=0;r<q.length;r++)if(l=q[r][0],g=q[r][1],c=p*(r-.5),d=c+p,z=!this._lightPasses(l,g),this._visibleCoords(Math.floor(c),Math.ceil(d),z,f)&&m(l,g,y,1),2==f.length&&0==f[0]&&360==f[1])return};a._visibleCoords=function(b,e,a,m){if(0>b)return e=this._visibleCoords(0,e,a,m),b=this._visibleCoords(360+b,360,a,m),e||b;for(var f=0;f<m.length&&m[f]<b;)f++;if(f==
+m.length)return a&&m.push(b,e),!0;var c=0;if(f%2){for(;f<m.length&&m[f]<e;)f++,c++;if(0==c)return!1;a&&(c%2?m.splice(f-c,c,e):m.splice(f-c,c))}else{for(;f<m.length&&m[f]<e;)f++,c++;if(b==m[f-c]&&1==c)return!1;a&&(c%2?m.splice(f-c,c,b):m.splice(f-c,c,b,e))}return!0};return c}(u);x=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;a.compute=function(b,e,a,c){c(b,e,0,1);if(this._lightPasses(b,e))for(var f=[],m,d,l,g,z,q=1;q<=a;q++)for(var p=this._getCircle(b,
+e,q),r=p.length,t=0;t<r;t++)if(m=p[t][0],d=p[t][1],g=[t?2*t-1:2*r-1,2*r],z=[2*t+1,2*r],l=!this._lightPasses(m,d),(l=this._checkVisibility(g,z,l,f))&&c(m,d,q,l),2==f.length&&0==f[0][0]&&f[1][0]==f[1][1])return};a._checkVisibility=function(b,e,a,c){if(b[0]>e[0])return b=this._checkVisibility(b,[b[1],b[1]],a,c),e=this._checkVisibility([0,1],e,a,c),(b+e)/2;for(var f=0,m=!1;f<c.length;){var d=c[f];d=d[0]*b[1]-b[0]*d[1];if(0<=d){0!=d||f%2||(m=!0);break}f++}d=c.length;for(var l=!1;d--;){var g=c[d];g=e[0]*
+g[1]-g[0]*e[1];if(0<=g){0==g&&d%2&&(l=!0);break}}g=!0;f==d&&(m||l)?g=!1:m&&l&&f+1==d&&d%2?g=!1:f>d&&f%2&&(g=!1);if(!g)return 0;m=d-f+1;if(m%2)f%2?(d=c[f],d=(e[0]*d[1]-d[0]*e[1])/(d[1]*e[1]),a&&c.splice(f,m,e)):(d=c[d],d=(d[0]*b[1]-b[0]*d[1])/(b[1]*d[1]),a&&c.splice(f,m,b));else if(f%2)l=c[f],d=c[d],d=(d[0]*l[1]-l[0]*d[1])/(l[1]*d[1]),a&&c.splice(f,m);else return a&&c.splice(f,m,b,e),1;return d/((e[0]*b[1]-b[0]*e[1])/(b[1]*e[1]))};return c}(u);var C=[[-1,0,0,1],[0,-1,1,0],[0,-1,-1,0],[-1,0,0,-1],[1,
+0,0,-1],[0,1,-1,0],[0,1,1,0],[1,0,0,1]];u=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);var a=c.prototype;a.compute=function(b,e,a,c){c(b,e,0,1);for(var f=0;f<C.length;f++)this._renderOctant(b,e,C[f],a,c)};a.compute180=function(b,e,a,c,k){k(b,e,0,1);var f=(c-1+8)%8,m=(c+1+8)%8;this._renderOctant(b,e,C[(c-2+8)%8],a,k);this._renderOctant(b,e,C[f],a,k);this._renderOctant(b,e,C[c],a,k);this._renderOctant(b,e,C[m],a,k)};a.compute90=function(b,e,a,c,k){k(b,e,0,1);var f=
+(c-1+8)%8;this._renderOctant(b,e,C[c],a,k);this._renderOctant(b,e,C[f],a,k)};a._renderOctant=function(b,e,a,c,k){this._castVisibility(b,e,1,1,0,c+1,a[0],a[1],a[2],a[3],k)};a._castVisibility=function(b,e,a,c,k,d,n,l,g,q,p){if(!(c<k))for(;a<=d;a++){for(var f=-a-1,m=-a,h=!1,W=0;0>=f;){f+=1;var z=b+f*n+m*l,y=e+f*g+m*q,r=(f-.5)/(m+.5),t=(f+.5)/(m-.5);if(!(t>c)){if(r<k)break;f*f+m*m<d*d&&p(z,y,a,1);h?this._lightPasses(z,y)?(h=!1,c=W):W=t:!this._lightPasses(z,y)&&a<d&&(h=!0,this._castVisibility(b,e,a+1,
+c,r,d,n,l,g,q,p),W=t)}}if(h)break}};return c}(u);B={DiscreteShadowcasting:B,PreciseShadowcasting:x,RecursiveShadowcasting:u};u=function(){function d(c,a){void 0===c&&(c=80);void 0===a&&(a=25);this._width=c;this._height=a}d.prototype._fillMap=function(c){for(var a=[],b=0;b<this._width;b++){a.push([]);for(var e=0;e<this._height;e++)a[b].push(c)}return a};return d}();x=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,d);c.prototype.create=function(a){for(var b=this._width-
+1,e=this._height-1,f=0;f<=b;f++)for(var c=0;c<=e;c++)a(f,c,f&&c&&f<b&&c<e?0:1);return this};return c}(u);var H=function(d){function c(b,e){b=d.call(this,b,e)||this;b._rooms=[];b._corridors=[];return b}_inheritsLoose(c,d);var a=c.prototype;a.getRooms=function(){return this._rooms};a.getCorridors=function(){return this._corridors};return c}(u),D=function(){},P=function(d){function c(b,e,a,c,k,h){var f=d.call(this)||this;f._x1=b;f._y1=e;f._x2=a;f._y2=c;f._doors={};void 0!==k&&void 0!==h&&f.addDoor(k,
+h);return f}_inheritsLoose(c,d);c.createRandomAt=function(b,e,a,c,k){var f=k.roomWidth[0],d=k.roomWidth[1],m=q.getUniformInt(f,d);f=k.roomHeight[0];d=k.roomHeight[1];k=q.getUniformInt(f,d);if(1==a)return a=e-Math.floor(q.getUniform()*k),new this(b+1,a,b+m,a+k-1,b,e);if(-1==a)return a=e-Math.floor(q.getUniform()*k),new this(b-m,a,b-1,a+k-1,b,e);if(1==c)return a=b-Math.floor(q.getUniform()*m),new this(a,e+1,a+m-1,e+k,b,e);if(-1==c)return a=b-Math.floor(q.getUniform()*m),new this(a,e-k,a+m-1,e-1,b,e);
+throw Error("dx or dy must be 1 or -1");};c.createRandomCenter=function(b,e,a){var f=a.roomWidth[0],c=a.roomWidth[1],d=q.getUniformInt(f,c);f=a.roomHeight[0];c=a.roomHeight[1];a=q.getUniformInt(f,c);b-=Math.floor(q.getUniform()*d);e-=Math.floor(q.getUniform()*a);return new this(b,e,b+d-1,e+a-1)};c.createRandom=function(b,a,f){var e=f.roomWidth[0],c=f.roomWidth[1],d=q.getUniformInt(e,c);e=f.roomHeight[0];c=f.roomHeight[1];f=q.getUniformInt(e,c);b=b-d-1;a=a-f-1;b=1+Math.floor(q.getUniform()*b);a=1+
+Math.floor(q.getUniform()*a);return new this(b,a,b+d-1,a+f-1)};var a=c.prototype;a.addDoor=function(b,a){this._doors[b+","+a]=1;return this};a.getDoors=function(b){for(var a in this._doors){var f=a.split(",");b(parseInt(f[0]),parseInt(f[1]))}return this};a.clearDoors=function(){this._doors={};return this};a.addDoors=function(b){for(var a=this._x1-1,f=this._x2+1,c=this._y1-1,d=this._y2+1,h=a;h<=f;h++)for(var n=c;n<=d;n++)if(h==a||h==f||n==c||n==d)b(h,n)||this.addDoor(h,n);return this};a.debug=function(){console.log("room",
+this._x1,this._y1,this._x2,this._y2)};a.isValid=function(b,a){for(var e=this._x1-1,c=this._x2+1,d=this._y1-1,h=this._y2+1,n=e;n<=c;n++)for(var l=d;l<=h;l++)if(n==e||n==c||l==d||l==h){if(!b(n,l))return!1}else if(!a(n,l))return!1;return!0};a.create=function(b){for(var a=this._x1-1,f=this._x2+1,c=this._y1-1,d=this._y2+1,h,n=a;n<=f;n++)for(var l=c;l<=d;l++)h=n+","+l in this._doors?2:n==a||n==f||l==c||l==d?1:0,b(n,l,h)};a.getCenter=function(){return[Math.round((this._x1+this._x2)/2),Math.round((this._y1+
+this._y2)/2)]};a.getLeft=function(){return this._x1};a.getRight=function(){return this._x2};a.getTop=function(){return this._y1};a.getBottom=function(){return this._y2};return c}(D),X=function(d){function c(b,a,f,c){var e=d.call(this)||this;e._startX=b;e._startY=a;e._endX=f;e._endY=c;e._endsWithAWall=!0;return e}_inheritsLoose(c,d);c.createRandomAt=function(b,a,f,c,d){d=q.getUniformInt(d.corridorLength[0],d.corridorLength[1]);return new this(b,a,b+f*d,a+c*d)};var a=c.prototype;a.debug=function(){console.log("corridor",
+this._startX,this._startY,this._endX,this._endY)};a.isValid=function(b,a){var e=this._startX,c=this._startY,d=this._endX-e,h=this._endY-c,n=1+Math.max(Math.abs(d),Math.abs(h));d&&(d/=Math.abs(d));h&&(h/=Math.abs(h));for(var l=h,g=-d,q=!0,p=0;p<n;p++){var r=e+p*d,t=c+p*h;a(r,t)||(q=!1);b(r+l,t+g)||(q=!1);b(r-l,t-g)||(q=!1);if(!q){n=p;this._endX=r-d;this._endY=t-h;break}}if(0==n||1==n&&b(this._endX+d,this._endY+h))return!1;a=!b(this._endX+d+l,this._endY+h+g);l=!b(this._endX+d-l,this._endY+h-g);this._endsWithAWall=
+b(this._endX+d,this._endY+h);return(a||l)&&this._endsWithAWall?!1:!0};a.create=function(b){var a=this._startX,f=this._startY,c=this._endX-a,d=this._endY-f,h=1+Math.max(Math.abs(c),Math.abs(d));c&&(c/=Math.abs(c));d&&(d/=Math.abs(d));for(var n=0;n<h;n++)b(a+n*c,f+n*d,0);return!0};a.createPriorityWalls=function(b){if(this._endsWithAWall){var a=this._endX-this._startX,f=this._endY-this._startY;a&&(a/=Math.abs(a));f&&(f/=Math.abs(f));var c=f,d=-a;b(this._endX+a,this._endY+f);b(this._endX+c,this._endY+
+d);b(this._endX-c,this._endY-d)}};return c}(D);D=function(d){function c(b,a,f){b=d.call(this,b,a)||this;b._options={roomWidth:[3,9],roomHeight:[3,5],roomDugPercentage:.1,timeLimit:1E3};Object.assign(b._options,f);b._map=[];b._dug=0;b._roomAttempts=20;b._corridorAttempts=20;b._connected=[];b._unconnected=[];b._digCallback=b._digCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._canBeDugCallback=b._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._isWallCallback=
+b._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));return b}_inheritsLoose(c,d);var a=c.prototype;a.create=function(b){for(var a=Date.now();;){if(Date.now()-a>this._options.timeLimit)return null;this._map=this._fillMap(1);this._dug=0;this._rooms=[];this._unconnected=[];this._generateRooms();if(!(2>this._rooms.length)&&this._generateCorridors())break}if(b)for(a=0;a<this._width;a++)for(var f=0;f<this._height;f++)b(a,f,this._map[a][f]);return this};a._generateRooms=function(){var b=
+this._width-2,a=this._height-2;do{var f=this._generateRoom();if(this._dug/(b*a)>this._options.roomDugPercentage)break}while(f)};a._generateRoom=function(){for(var b=0;b<this._roomAttempts;){b++;var a=P.createRandom(this._width,this._height,this._options);if(a.isValid(this._isWallCallback,this._canBeDugCallback))return a.create(this._digCallback),this._rooms.push(a),a}return null};a._generateCorridors=function(){for(var b=0;b<this._corridorAttempts;){b++;this._corridors=[];this._map=this._fillMap(1);
+for(var a=0;a<this._rooms.length;a++){var f=this._rooms[a];f.clearDoors();f.create(this._digCallback)}this._unconnected=q.shuffle(this._rooms.slice());this._connected=[];for(this._unconnected.length&&this._connected.push(this._unconnected.pop());;){a=q.getItem(this._connected);if(!a)break;a=this._closestRoom(this._unconnected,a);if(!a)break;f=this._closestRoom(this._connected,a);if(!f)break;if(!this._connectRooms(a,f))break;if(!this._unconnected.length)return!0}}return!1};a._closestRoom=function(b,
+a){var e=Infinity;a=a.getCenter();for(var c=null,d=0;d<b.length;d++){var h=b[d],n=h.getCenter(),l=n[0]-a[0];n=n[1]-a[1];l=l*l+n*n;l<e&&(e=l,c=h)}return c};a._connectRooms=function(b,a){var e=b.getCenter(),c=a.getCenter(),d=c[0]-e[0];e=c[1]-e[1];if(Math.abs(d)<Math.abs(e)){d=0<e?2:0;var h=(d+2)%4;var n=a.getLeft();var l=a.getRight();e=0}else d=0<d?1:3,h=(d+2)%4,n=a.getTop(),l=a.getBottom(),e=1;d=this._placeInWall(b,d);if(!d)return!1;if(d[e]>=n&&d[e]<=l){c=d.slice();n=0;switch(h){case 0:n=a.getTop()-
+1;break;case 1:n=a.getRight()+1;break;case 2:n=a.getBottom()+1;break;case 3:n=a.getLeft()-1}c[(e+1)%2]=n;this._digLine([d,c])}else if(d[e]<n-1||d[e]>l+1){c=d[e]-c[e];n=0;switch(h){case 0:case 1:n=0>c?3:1;break;case 2:case 3:n=0>c?1:3}c=this._placeInWall(a,(h+n)%4);if(!c)return!1;h=[0,0];h[e]=d[e];e=(e+1)%2;h[e]=c[e];this._digLine([d,h,c])}else{n=(e+1)%2;c=this._placeInWall(a,h);if(!c)return!1;h=Math.round((c[n]+d[n])/2);l=[0,0];var g=[0,0];l[e]=d[e];l[n]=h;g[e]=c[e];g[n]=h;this._digLine([d,l,g,c])}b.addDoor(d[0],
+d[1]);a.addDoor(c[0],c[1]);e=this._unconnected.indexOf(b);-1!=e&&(this._unconnected.splice(e,1),this._connected.push(b));e=this._unconnected.indexOf(a);-1!=e&&(this._unconnected.splice(e,1),this._connected.push(a));return!0};a._placeInWall=function(b,a){var e=[0,0],c=[0,0],d=0;switch(a){case 0:c=[1,0];e=[b.getLeft(),b.getTop()-1];d=b.getRight()-b.getLeft()+1;break;case 1:c=[0,1];e=[b.getRight()+1,b.getTop()];d=b.getBottom()-b.getTop()+1;break;case 2:c=[1,0];e=[b.getLeft(),b.getBottom()+1];d=b.getRight()-
+b.getLeft()+1;break;case 3:c=[0,1],e=[b.getLeft()-1,b.getTop()],d=b.getBottom()-b.getTop()+1}b=[];a=-2;for(var h=0;h<d;h++){var n=e[0]+h*c[0],l=e[1]+h*c[1];b.push(null);1==this._map[n][l]?a!=h-1&&(b[h]=[n,l]):(a=h)&&(b[h-1]=null)}for(e=b.length-1;0<=e;e--)b[e]||b.splice(e,1);return b.length?q.getItem(b):null};a._digLine=function(b){for(var a=1;a<b.length;a++){var f=b[a-1],c=b[a];f=new X(f[0],f[1],c[0],c[1]);f.create(this._digCallback);this._corridors.push(f)}};a._digCallback=function(b,a,f){this._map[b][a]=
+f;0==f&&this._dug++};a._isWallCallback=function(b,a){return 0>b||0>a||b>=this._width||a>=this._height?!1:1==this._map[b][a]};a._canBeDugCallback=function(b,a){return 1>b||1>a||b+1>=this._width||a+1>=this._height?!1:1==this._map[b][a]};return c}(H);var E=function(d){function c(b,a,f){void 0===f&&(f={});b=d.call(this,b,a)||this;b._options={born:[5,6,7,8],survive:[4,5,6,7,8],topology:8};b.setOptions(f);b._dirs=v[b._options.topology];b._map=b._fillMap(0);return b}_inheritsLoose(c,d);var a=c.prototype;
+a.randomize=function(b){for(var a=0;a<this._width;a++)for(var f=0;f<this._height;f++)this._map[a][f]=q.getUniform()<b?1:0;return this};a.setOptions=function(b){Object.assign(this._options,b)};a.set=function(b,a,f){this._map[b][a]=f};a.create=function(b){for(var a=this._fillMap(0),f=this._options.born,c=this._options.survive,d=0;d<this._height;d++){var h=1,n=0;6==this._options.topology&&(h=2,n=d%2);for(;n<this._width;n+=h){var l=this._map[n][d],g=this._getNeighbors(n,d);l&&-1!=c.indexOf(g)?a[n][d]=
+1:l||-1==f.indexOf(g)||(a[n][d]=1)}}this._map=a;b&&this._serviceCallback(b)};a._serviceCallback=function(b){for(var a=0;a<this._height;a++){var f=1,c=0;6==this._options.topology&&(f=2,c=a%2);for(;c<this._width;c+=f)b(c,a,this._map[c][a])}};a._getNeighbors=function(b,a){for(var e=0,c=0;c<this._dirs.length;c++){var d=this._dirs[c],h=b+d[0];d=a+d[1];0>h||h>=this._width||0>d||d>=this._height||(e+=1==this._map[h][d]?1:0)}return e};a.connect=function(b,a,f){a||(a=0);var e=[],c={},d=1,n=[0,0];6==this._options.topology&&
+(d=2,n=[0,1]);for(var l=0;l<this._height;l++)for(var g=n[l%2];g<this._width;g+=d)if(this._freeSpace(g,l,a)){var p=[g,l];c[this._pointKey(p)]=p;e.push([g,l])}d=e[q.getUniformInt(0,e.length-1)];n=this._pointKey(d);e={};e[n]=d;delete c[n];for(this._findConnected(e,c,[d],!1,a);0<Object.keys(c).length;){n=this._getFromTo(e,c);d=n[0];l=n[1];n={};n[this._pointKey(d)]=d;this._findConnected(n,c,[d],!0,a);(6==this._options.topology?this._tunnelToConnected6:this._tunnelToConnected).call(this,l,d,e,c,a,f);for(var r in n)d=
+n[r],this._map[d[0]][d[1]]=a,e[r]=d,delete c[r]}b&&this._serviceCallback(b)};a._getFromTo=function(b,a){for(var e=[0,0],c=[0,0],d,h=Object.keys(b),n=Object.keys(a),l=0;5>l&&!(h.length<n.length?(e=h,c=b[e[q.getUniformInt(0,e.length-1)]],e=this._getClosest(c,a)):(e=n,e=a[e[q.getUniformInt(0,e.length-1)]],c=this._getClosest(e,b)),d=(e[0]-c[0])*(e[0]-c[0])+(e[1]-c[1])*(e[1]-c[1]),64>d);l++);return[e,c]};a._getClosest=function(b,a){var e=null,c=null,d;for(d in a){var h=a[d],n=(h[0]-b[0])*(h[0]-b[0])+(h[1]-
+b[1])*(h[1]-b[1]);if(null==c||n<c)c=n,e=h}return e};a._findConnected=function(b,a,f,c,d){for(;0<f.length;){var e=f.splice(0,1)[0];e=6==this._options.topology?[[e[0]+2,e[1]],[e[0]+1,e[1]-1],[e[0]-1,e[1]-1],[e[0]-2,e[1]],[e[0]-1,e[1]+1],[e[0]+1,e[1]+1]]:[[e[0]+1,e[1]],[e[0]-1,e[1]],[e[0],e[1]+1],[e[0],e[1]-1]];for(var m=0;m<e.length;m++){var k=this._pointKey(e[m]);null==b[k]&&this._freeSpace(e[m][0],e[m][1],d)&&(b[k]=e[m],c||delete a[k],f.push(e[m]))}}};a._tunnelToConnected=function(b,a,f,c,d,h){if(a[0]<
+b[0]){var e=a;var m=b}else e=b,m=a;for(var k=e[0];k<=m[0];k++){this._map[k][e[1]]=d;var g=[k,e[1]],q=this._pointKey(g);f[q]=g;delete c[q]}h&&e[0]<m[0]&&h(e,[m[0],e[1]]);k=m[0];a[1]<b[1]?(e=a,m=b):(e=b,m=a);for(b=e[1];b<m[1];b++)this._map[k][b]=d,a=[k,b],g=this._pointKey(a),f[g]=a,delete c[g];h&&e[1]<m[1]&&h([m[0],e[1]],[m[0],m[1]])};a._tunnelToConnected6=function(b,a,c,d,k,h){if(a[0]<b[0]){var e=a;var f=b}else e=b,f=a;var m=e[0];for(e=e[1];m!=f[0]||e!=f[1];){var g=2;e<f[1]?(e++,g=1):e>f[1]&&(e--,
+g=1);m=m<f[0]?m+g:m>f[0]?m-g:f[1]%2?m-g:m+g;this._map[m][e]=k;g=[m,e];var q=this._pointKey(g);c[q]=g;delete d[q]}h&&h(a,b)};a._freeSpace=function(b,a,f){return 0<=b&&b<this._width&&0<=a&&a<this._height&&this._map[b][a]==f};a._pointKey=function(b){return b[0]+"."+b[1]};return c}(u),qa={room:P,corridor:X};H=function(d){function c(b,a,f){void 0===f&&(f={});b=d.call(this,b,a)||this;b._options=Object.assign({roomWidth:[3,9],roomHeight:[3,5],corridorLength:[3,10],dugPercentage:.2,timeLimit:1E3},f);b._features=
+{room:4,corridor:4};b._map=[];b._featureAttempts=20;b._walls={};b._dug=0;b._digCallback=b._digCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._canBeDugCallback=b._canBeDugCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._isWallCallback=b._isWallCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));b._priorityWallCallback=b._priorityWallCallback.bind(_assertThisInitialized(_assertThisInitialized(b)));return b}_inheritsLoose(c,d);var a=c.prototype;a.create=
+function(b){this._rooms=[];this._corridors=[];this._map=this._fillMap(1);this._walls={};this._dug=0;var a=(this._width-2)*(this._height-2);this._firstRoom();var f=Date.now();do{var c=0;if(Date.now()-f>this._options.timeLimit)break;var d=this._findWall();if(!d)break;var h=d.split(",");d=parseInt(h[0]);h=parseInt(h[1]);var g=this._getDiggingDirection(d,h);if(g){var l=0;do if(l++,this._tryFeature(d,h,g[0],g[1])){this._removeSurroundingWalls(d,h);this._removeSurroundingWalls(d-g[0],h-g[1]);break}while(l<
+this._featureAttempts);for(var q in this._walls)1<this._walls[q]&&c++}}while(this._dug/a<this._options.dugPercentage||c);this._addDoors();if(b)for(a=0;a<this._width;a++)for(f=0;f<this._height;f++)b(a,f,this._map[a][f]);this._walls={};this._map=[];return this};a._digCallback=function(b,a,f){0==f||2==f?(this._map[b][a]=0,this._dug++):this._walls[b+","+a]=1};a._isWallCallback=function(b,a){return 0>b||0>a||b>=this._width||a>=this._height?!1:1==this._map[b][a]};a._canBeDugCallback=function(b,a){return 1>
+b||1>a||b+1>=this._width||a+1>=this._height?!1:1==this._map[b][a]};a._priorityWallCallback=function(b,a){this._walls[b+","+a]=2};a._firstRoom=function(){var b=P.createRandomCenter(Math.floor(this._width/2),Math.floor(this._height/2),this._options);this._rooms.push(b);b.create(this._digCallback)};a._findWall=function(){var b=[],a=[],f;for(f in this._walls)2==this._walls[f]?a.push(f):b.push(f);b=a.length?a:b;if(!b.length)return null;b=q.getItem(b.sort());delete this._walls[b];return b};a._tryFeature=
+function(b,a,f,c){var e=q.getWeightedValue(this._features);b=qa[e].createRandomAt(b,a,f,c,this._options);if(!b.isValid(this._isWallCallback,this._canBeDugCallback))return!1;b.create(this._digCallback);b instanceof P&&this._rooms.push(b);b instanceof X&&(b.createPriorityWalls(this._priorityWallCallback),this._corridors.push(b));return!0};a._removeSurroundingWalls=function(b,a){for(var e=v[4],c=0;c<e.length;c++){var d=e[c],h=b+d[0],g=a+d[1];delete this._walls[h+","+g];h=b+2*d[0];g=a+2*d[1];delete this._walls[h+
+","+g]}};a._getDiggingDirection=function(b,a){if(0>=b||0>=a||b>=this._width-1||a>=this._height-1)return null;for(var e=null,c=v[4],d=0;d<c.length;d++){var h=c[d];if(!this._map[b+h[0]][a+h[1]]){if(e)return null;e=h}}return e?[-e[0],-e[1]]:null};a._addDoors=function(){function b(b,e){return 1==a[b][e]}for(var a=this._map,c=0;c<this._rooms.length;c++){var d=this._rooms[c];d.clearDoors();d.addDoors(b)}};return c}(H);var ra=function(d){function c(){return d.apply(this,arguments)||this}_inheritsLoose(c,
+d);c.prototype.create=function(a){for(var b=this._fillMap(1),e=Math.ceil((this._width-2)/2),c=[],d=[],k=0;k<e;k++)c.push(k),d.push(k);c.push(e-1);for(k=1;k+3<this._height;k+=2)for(var h=0;h<e;h++){var g=2*h+1,l=k;b[g][l]=0;h!=c[h+1]&&.375<q.getUniform()&&(ca(h,c,d),b[g+1][l]=0);h!=c[h]&&.375<q.getUniform()?da(h,c,d):b[g][l+1]=0}for(h=0;h<e;h++)g=2*h+1,l=k,b[g][l]=0,h!=c[h+1]&&(h==c[h]||.375<q.getUniform())&&(ca(h,c,d),b[g+1][l]=0),da(h,c,d);for(e=0;e<this._width;e++)for(c=0;c<this._height;c++)a(e,
+c,b[e][c]);return this};return c}(u),sa=function(d){function c(){var b=d.apply(this,arguments)||this;b._stack=[];b._map=[];return b}_inheritsLoose(c,d);var a=c.prototype;a.create=function(b){var a=this._width,c=this._height;this._map=[];for(var d=0;d<a;d++){this._map.push([]);for(var k=0;k<c;k++)this._map[d].push(0==d||0==k||d+1==a||k+1==c?1:0)}this._stack=[[1,1,a-2,c-2]];this._process();for(d=0;d<a;d++)for(k=0;k<c;k++)b(d,k,this._map[d][k]);this._map=[];return this};a._process=function(){for(;this._stack.length;){var b=
+this._stack.shift();this._partitionRoom(b)}};a._partitionRoom=function(b){for(var a=[],c=[],d=b[0]+1;d<b[2];d++){var k=this._map[d][b[3]+1];!this._map[d][b[1]-1]||!k||d%2||a.push(d)}for(d=b[1]+1;d<b[3];d++)k=this._map[b[2]+1][d],!this._map[b[0]-1][d]||!k||d%2||c.push(d);if(a.length&&c.length){a=q.getItem(a);c=q.getItem(c);this._map[a][c]=1;d=[];k=[];d.push(k);for(var h=b[0];h<a;h++)this._map[h][c]=1,k.push([h,c]);k=[];d.push(k);for(h=a+1;h<=b[2];h++)this._map[h][c]=1,k.push([h,c]);k=[];d.push(k);
+for(h=b[1];h<c;h++)this._map[a][h]=1,k.push([a,h]);k=[];d.push(k);for(h=c+1;h<=b[3];h++)this._map[a][h]=1,k.push([a,h]);k=q.getItem(d);for(h=0;h<d.length;h++){var g=d[h];g!=k&&(g=q.getItem(g),this._map[g[0]][g[1]]=0)}this._stack.push([b[0],b[1],a-1,c-1]);this._stack.push([a+1,b[1],b[2],c-1]);this._stack.push([b[0],c+1,a-1,b[3]]);this._stack.push([a+1,c+1,b[2],b[3]])}};return c}(u),ta=function(d){function c(b,a,c){void 0===c&&(c=0);b=d.call(this,b,a)||this;b._regularity=c;b._map=[];return b}_inheritsLoose(c,
+d);var a=c.prototype;a.create=function(b){var a=this._width,c=this._height,d=this._fillMap(1);a-=a%2?1:2;c-=c%2?1:2;var k=0,h=[[0,0],[0,0],[0,0],[0,0]];do{var g=1+2*Math.floor(q.getUniform()*(a-1)/2);var l=1+2*Math.floor(q.getUniform()*(c-1)/2);k||(d[g][l]=0);if(!d[g][l]){this._randomize(h);do{0==Math.floor(q.getUniform()*(this._regularity+1))&&this._randomize(h);var p=!0;for(var r=0;4>r;r++){var t=g+2*h[r][0];var A=l+2*h[r][1];if(this._isFree(d,t,A,a,c)){d[t][A]=0;d[g+h[r][0]][l+h[r][1]]=0;g=t;l=
+A;p=!1;k++;break}}}while(!p)}}while(k+1<a*c/4);for(a=0;a<this._width;a++)for(c=0;c<this._height;c++)b(a,c,d[a][c]);this._map=[];return this};a._randomize=function(b){for(var a=0;4>a;a++)b[a][0]=0,b[a][1]=0;switch(Math.floor(4*q.getUniform())){case 0:b[0][0]=-1;b[1][0]=1;b[2][1]=-1;b[3][1]=1;break;case 1:b[3][0]=-1;b[2][0]=1;b[1][1]=-1;b[0][1]=1;break;case 2:b[2][0]=-1;b[3][0]=1;b[0][1]=-1;b[1][1]=1;break;case 3:b[1][0]=-1,b[0][0]=1,b[3][1]=-1,b[2][1]=1}};a._isFree=function(b,a,c,d,k){return 1>a||
+1>c||a>=d||c>=k?!1:b[a][c]};return c}(u);u=function(d){function c(b,a,c){b=d.call(this,b,a)||this;b.map=[];b.rooms=[];b.connectedCells=[];c=Object.assign({cellWidth:3,cellHeight:3},c);c.hasOwnProperty("roomWidth")||(c.roomWidth=b._calculateRoomSize(b._width,c.cellWidth));c.hasOwnProperty("roomHeight")||(c.roomHeight=b._calculateRoomSize(b._height,c.cellHeight));b._options=c;return b}_inheritsLoose(c,d);var a=c.prototype;a.create=function(b){this.map=this._fillMap(1);this.rooms=[];this.connectedCells=
+[];this._initRooms();this._connectRooms();this._connectUnconnectedRooms();this._createRandomRoomConnections();this._createRooms();this._createCorridors();if(b)for(var a=0;a<this._width;a++)for(var c=0;c<this._height;c++)b(a,c,this.map[a][c]);return this};a._calculateRoomSize=function(b,a){var c=Math.floor(b/a*.8);b=Math.floor(b/a*.25);2>b&&(b=2);2>c&&(c=2);return[b,c]};a._initRooms=function(){for(var b=0;b<this._options.cellWidth;b++){this.rooms.push([]);for(var a=0;a<this._options.cellHeight;a++)this.rooms[b].push({x:0,
+y:0,width:0,height:0,connections:[],cellx:b,celly:a})}};a._connectRooms=function(){var b=q.getUniformInt(0,this._options.cellWidth-1),a=q.getUniformInt(0,this._options.cellHeight-1);do{var c=[0,2,4,6];c=q.shuffle(c);do{var d=!1;var k=c.pop();var h=b+v[8][k][0];k=a+v[8][k][1];if(!(0>h||h>=this._options.cellWidth||0>k||k>=this._options.cellHeight)){var g=this.rooms[b][a];if(0<g.connections.length&&g.connections[0][0]==h&&g.connections[0][1]==k)break;g=this.rooms[h][k];0==g.connections.length&&(g.connections.push([b,
+a]),this.connectedCells.push([h,k]),b=h,a=k,d=!0)}}while(0<c.length&&0==d)}while(0<c.length)};a._connectUnconnectedRooms=function(){var b=this._options.cellWidth,a=this._options.cellHeight;this.connectedCells=q.shuffle(this.connectedCells);for(var c,d,k,h=0;h<this._options.cellWidth;h++)for(var g=0;g<this._options.cellHeight;g++)if(c=this.rooms[h][g],0==c.connections.length){var l=[0,2,4,6];l=q.shuffle(l);k=!1;do{var p=l.pop(),r=h+v[8][p][0];p=g+v[8][p][1];if(!(0>r||r>=b||0>p||p>=a)){d=this.rooms[r][p];
+k=!0;if(0==d.connections.length)break;for(r=0;r<d.connections.length;r++)if(d.connections[r][0]==h&&d.connections[r][1]==g){k=!1;break}if(k)break}}while(l.length);k?c.connections.push([d.cellx,d.celly]):console.log("-- Unable to connect room.")}};a._createRandomRoomConnections=function(){};a._createRooms=function(){for(var b=this._width,a=this._height,c=this._options.cellWidth,d=this._options.cellHeight,k=Math.floor(this._width/c),h=Math.floor(this._height/d),g,l,p=this._options.roomWidth,r=this._options.roomHeight,
+t,A,u,v=0;v<c;v++)for(var w=0;w<d;w++){t=k*v;A=h*w;0==t&&(t=1);0==A&&(A=1);g=q.getUniformInt(p[0],p[1]);l=q.getUniformInt(r[0],r[1]);if(0<w)for(u=this.rooms[v][w-1];3>A-(u.y+u.height);)A++;if(0<v)for(u=this.rooms[v-1][w];3>t-(u.x+u.width);)t++;u=Math.round(q.getUniformInt(0,k-g)/2);for(var x=Math.round(q.getUniformInt(0,h-l)/2);t+u+g>=b;)u?u--:g--;for(;A+x+l>=a;)x?x--:l--;t+=u;A+=x;this.rooms[v][w].x=t;this.rooms[v][w].y=A;this.rooms[v][w].width=g;this.rooms[v][w].height=l;for(u=t;u<t+g;u++)for(x=
+A;x<A+l;x++)this.map[u][x]=0}};a._getWallPosition=function(b,a){if(1==a||3==a){var c=q.getUniformInt(b.x+1,b.x+b.width-2);if(1==a){var e=b.y-2;b=e+1}else e=b.y+b.height+1,b=e-1;this.map[c][b]=0}else e=q.getUniformInt(b.y+1,b.y+b.height-2),2==a?(c=b.x+b.width+1,b=c-1):(c=b.x-2,b=c+1),this.map[b][e]=0;return[c,e]};a._drawCorridor=function(b,a){var c=a[0]-b[0],e=a[1]-b[1];a=b[0];b=b[1];var d=[];var h=Math.abs(c);var g=Math.abs(e);var l=q.getUniform();var p=1-l;c=0<c?2:6;e=0<e?4:0;h<g?(l=Math.ceil(g*
+l),d.push([e,l]),d.push([c,h]),l=Math.floor(g*p),d.push([e,l])):(l=Math.ceil(h*l),d.push([c,l]),d.push([e,g]),l=Math.floor(h*p),d.push([c,l]));for(this.map[a][b]=0;0<d.length;)for(h=d.pop();0<h[1];)a+=v[8][h[0]][0],b+=v[8][h[0]][1],this.map[a][b]=0,--h[1]};a._createCorridors=function(){for(var a=this._options.cellWidth,c=this._options.cellHeight,d,g,k,h,n=0;n<a;n++)for(var l=0;l<c;l++){d=this.rooms[n][l];for(var p=0;p<d.connections.length;p++)g=d.connections[p],g=this.rooms[g[0]][g[1]],g.cellx>d.cellx?
+(k=2,h=4):g.cellx<d.cellx?(k=4,h=2):g.celly>d.celly?(k=3,h=1):(k=1,h=3),this._drawCorridor(this._getWallPosition(d,k),this._getWallPosition(g,h))}};return c}(u);x={Arena:x,Uniform:D,Cellular:E,Digger:H,EllerMaze:ra,DividedMaze:sa,IceyMaze:ta,Rogue:u};var ua=.5*(Math.sqrt(3)-1),K=(3-Math.sqrt(3))/6;u={Simplex:function(d){function c(a){void 0===a&&(a=256);var b=d.call(this)||this;b._gradients=[[0,-1],[1,-1],[1,0],[1,1],[0,1],[-1,1],[-1,0],[-1,-1]];for(var c=[],f=0;f<a;f++)c.push(f);c=q.shuffle(c);b._perms=
+[];b._indexes=[];for(f=0;f<2*a;f++)b._perms.push(c[f%a]),b._indexes.push(b._perms[f]%b._gradients.length);return b}_inheritsLoose(c,d);c.prototype.get=function(a,b){var c=this._perms,d=this._indexes,g=c.length/2,k=0,h=0,n=0,l=(a+b)*ua,q=Math.floor(a+l);var r=Math.floor(b+l);var t=(q+r)*K;l=a-(q-t);var u=b-(r-t);if(l>u){var v=1;var w=0}else v=0,w=1;t=l-v+K;var x=u-w+K;b=l-1+2*K;a=u-1+2*K;q=p(q,g);g=p(r,g);var B=.5-l*l-u*u;0<=B&&(B*=B,r=d[q+c[g]],k=this._gradients[r],k=B*B*(k[0]*l+k[1]*u));l=.5-t*t-
+x*x;0<=l&&(l*=l,r=d[q+v+c[g+w]],h=this._gradients[r],h=l*l*(h[0]*t+h[1]*x));l=.5-b*b-a*a;0<=l&&(l*=l,r=d[q+1+c[g+1]],c=this._gradients[r],n=l*l*(c[0]*b+c[1]*a));return 70*(k+h+n)};return c}(function(){})};E=function(){function d(c,a,b,d){void 0===d&&(d={});this._toX=c;this._toY=a;this._passableCallback=b;this._options=Object.assign({topology:8},d);this._dirs=v[this._options.topology];8==this._options.topology&&(this._dirs=[this._dirs[0],this._dirs[2],this._dirs[4],this._dirs[6],this._dirs[1],this._dirs[3],
+this._dirs[5],this._dirs[7]])}d.prototype._getNeighbors=function(c,a){for(var b=[],d=0;d<this._dirs.length;d++){var f=this._dirs[d],g=c+f[0];f=a+f[1];this._passableCallback(g,f)&&b.push([g,f])}return b};return d}();D=function(d){function c(a,c,f,g){f=d.call(this,a,c,f,g)||this;f._computed={};f._todo=[];f._add(a,c,null);return f}_inheritsLoose(c,d);var a=c.prototype;a.compute=function(a,c,d){var b=a+","+c;b in this._computed||this._compute(a,c);if(b in this._computed)for(a=this._computed[b];a;)d(a.x,
+a.y),a=a.prev};a._compute=function(a,c){for(;this._todo.length;){var b=this._todo.shift();if(b.x==a&&b.y==c)break;for(var d=this._getNeighbors(b.x,b.y),e=0;e<d.length;e++){var g=d[e],n=g[0];g=g[1];n+","+g in this._computed||this._add(n,g,b)}}};a._add=function(a,c,d){d={x:a,y:c,prev:d};this._computed[a+","+c]=d;this._todo.push(d)};return c}(E);E=function(d){function c(a,c,f,g){void 0===g&&(g={});a=d.call(this,a,c,f,g)||this;a._todo=[];a._done={};return a}_inheritsLoose(c,d);var a=c.prototype;a.compute=
+function(a,c,d){this._todo=[];this._done={};this._fromX=a;this._fromY=c;for(this._add(this._toX,this._toY,null);this._todo.length;){var b=this._todo.shift(),e=b.x+","+b.y;if(!(e in this._done)){this._done[e]=b;if(b.x==a&&b.y==c)break;e=this._getNeighbors(b.x,b.y);for(var f=0;f<e.length;f++){var g=e[f],l=g[0];g=g[1];l+","+g in this._done||this._add(l,g,b)}}}if(a=this._done[a+","+c])for(;a;)d(a.x,a.y),a=a.prev};a._add=function(a,c,d){var b=this._distance(a,c);a={x:a,y:c,prev:d,g:d?d.g+1:0,h:b};c=a.g+
+a.h;for(d=0;d<this._todo.length;d++){var e=this._todo[d],f=e.g+e.h;if(c<f||c==f&&b<e.h){this._todo.splice(d,0,a);return}}this._todo.push(a)};a._distance=function(a,c){switch(this._options.topology){case 4:return Math.abs(a-this._fromX)+Math.abs(c-this._fromY);case 6:return c=Math.abs(c-this._fromY),c+Math.max(0,(Math.abs(a-this._fromX)-c)/2);case 8:return Math.max(Math.abs(a-this._fromX),Math.abs(c-this._fromY))}};return c}(E);D={Dijkstra:D,AStar:E};E=function(){function d(a){this._scheduler=a;this._lock=
+1}var c=d.prototype;c.start=function(){return this.unlock()};c.lock=function(){this._lock++;return this};c.unlock=function(){if(!this._lock)throw Error("Cannot unlock unlocked engine");for(this._lock--;!this._lock;){var a=this._scheduler.next();if(!a)return this.lock();(a=a.act())&&a.then&&(this.lock(),a.then(this.unlock.bind(this)))}return this};return d}();H=function(){function d(a,b){void 0===b&&(b={});this._reflectivityCallback=a;this._options={};b=Object.assign({passes:1,emissionThreshold:100,
+range:10},b);this._lights={};this._reflectivityCache={};this._fovCache={};this.setOptions(b)}var c=d.prototype;c.setOptions=function(a){Object.assign(this._options,a);a&&a.range&&this.reset();return this};c.setFOV=function(a){this._fov=a;this._fovCache={};return this};c.setLight=function(a,b,c){a=a+","+b;c?this._lights[a]="string"==typeof c?L(c):c:delete this._lights[a];return this};c.clearLights=function(){this._lights={}};c.reset=function(){this._reflectivityCache={};this._fovCache={};return this};
+c.compute=function(a){var b={},c={},d={},g;for(g in this._lights){var k=this._lights[g];c[g]=[0,0,0];Y(c[g],k)}for(g=0;g<this._options.passes;g++)this._emitLight(c,d,b),g+1!=this._options.passes&&(c=this._computeEmitters(d,b));for(var h in d)c=h.split(","),b=parseInt(c[0]),c=parseInt(c[1]),a(b,c,d[h]);return this};c._emitLight=function(a,b,c){for(var d in a){var e=d.split(","),g=parseInt(e[0]);e=parseInt(e[1]);this._emitLightFromCell(g,e,a[d],b);c[d]=1}return this};c._computeEmitters=function(a,b){var c=
+{},d;for(d in a)if(!(d in b)){var g=a[d];if(d in this._reflectivityCache)var k=this._reflectivityCache[d];else{var h=d.split(",");k=parseInt(h[0]);h=parseInt(h[1]);k=this._reflectivityCallback(k,h);this._reflectivityCache[d]=k}if(0!=k){h=[0,0,0];for(var n=0,l=0;3>l;l++){var p=Math.round(g[l]*k);h[l]=p;n+=p}n>this._options.emissionThreshold&&(c[d]=h)}}return c};c._emitLightFromCell=function(a,b,c,d){var e=a+","+b;a=e in this._fovCache?this._fovCache[e]:this._updateFOV(a,b);for(var f in a){b=a[f];f in
+d?e=d[f]:(e=[0,0,0],d[f]=e);for(var g=0;3>g;g++)e[g]+=Math.round(c[g]*b)}return this};c._updateFOV=function(a,b){var c={};this._fovCache[a+","+b]=c;var d=this._options.range;this._fov.compute(a,b,d,function(a,b,e,f){e=f*(1-e/d);0!=e&&(c[a+","+b]=e)}.bind(this));return c};return d}();g.Util=ka;g.Color=J;g.Text=I;g.RNG=q;g.Display=G;g.StringGenerator=O;g.EventQueue=ea;g.Scheduler=F;g.FOV=B;g.Map=x;g.Noise=u;g.Path=D;g.Engine=E;g.Lighting=H;g.DEFAULT_WIDTH=80;g.DEFAULT_HEIGHT=25;g.DIRS=v;g.KEYS={VK_CANCEL:3,
+VK_HELP:6,VK_BACK_SPACE:8,VK_TAB:9,VK_CLEAR:12,VK_RETURN:13,VK_ENTER:14,VK_SHIFT:16,VK_CONTROL:17,VK_ALT:18,VK_PAUSE:19,VK_CAPS_LOCK:20,VK_ESCAPE:27,VK_SPACE:32,VK_PAGE_UP:33,VK_PAGE_DOWN:34,VK_END:35,VK_HOME:36,VK_LEFT:37,VK_UP:38,VK_RIGHT:39,VK_DOWN:40,VK_PRINTSCREEN:44,VK_INSERT:45,VK_DELETE:46,VK_0:48,VK_1:49,VK_2:50,VK_3:51,VK_4:52,VK_5:53,VK_6:54,VK_7:55,VK_8:56,VK_9:57,VK_COLON:58,VK_SEMICOLON:59,VK_LESS_THAN:60,VK_EQUALS:61,VK_GREATER_THAN:62,VK_QUESTION_MARK:63,VK_AT:64,VK_A:65,VK_B:66,VK_C:67,
+VK_D:68,VK_E:69,VK_F:70,VK_G:71,VK_H:72,VK_I:73,VK_J:74,VK_K:75,VK_L:76,VK_M:77,VK_N:78,VK_O:79,VK_P:80,VK_Q:81,VK_R:82,VK_S:83,VK_T:84,VK_U:85,VK_V:86,VK_W:87,VK_X:88,VK_Y:89,VK_Z:90,VK_CONTEXT_MENU:93,VK_NUMPAD0:96,VK_NUMPAD1:97,VK_NUMPAD2:98,VK_NUMPAD3:99,VK_NUMPAD4:100,VK_NUMPAD5:101,VK_NUMPAD6:102,VK_NUMPAD7:103,VK_NUMPAD8:104,VK_NUMPAD9:105,VK_MULTIPLY:106,VK_ADD:107,VK_SEPARATOR:108,VK_SUBTRACT:109,VK_DECIMAL:110,VK_DIVIDE:111,VK_F1:112,VK_F2:113,VK_F3:114,VK_F4:115,VK_F5:116,VK_F6:117,VK_F7:118,
+VK_F8:119,VK_F9:120,VK_F10:121,VK_F11:122,VK_F12:123,VK_F13:124,VK_F14:125,VK_F15:126,VK_F16:127,VK_F17:128,VK_F18:129,VK_F19:130,VK_F20:131,VK_F21:132,VK_F22:133,VK_F23:134,VK_F24:135,VK_NUM_LOCK:144,VK_SCROLL_LOCK:145,VK_CIRCUMFLEX:160,VK_EXCLAMATION:161,VK_DOUBLE_QUOTE:162,VK_HASH:163,VK_DOLLAR:164,VK_PERCENT:165,VK_AMPERSAND:166,VK_UNDERSCORE:167,VK_OPEN_PAREN:168,VK_CLOSE_PAREN:169,VK_ASTERISK:170,VK_PLUS:171,VK_PIPE:172,VK_HYPHEN_MINUS:173,VK_OPEN_CURLY_BRACKET:174,VK_CLOSE_CURLY_BRACKET:175,
+VK_TILDE:176,VK_COMMA:188,VK_PERIOD:190,VK_SLASH:191,VK_BACK_QUOTE:192,VK_OPEN_BRACKET:219,VK_BACK_SLASH:220,VK_CLOSE_BRACKET:221,VK_QUOTE:222,VK_META:224,VK_ALTGR:225,VK_WIN:91,VK_KANA:21,VK_HANGUL:21,VK_EISU:22,VK_JUNJA:23,VK_FINAL:24,VK_HANJA:25,VK_KANJI:25,VK_CONVERT:28,VK_NONCONVERT:29,VK_ACCEPT:30,VK_MODECHANGE:31,VK_SELECT:41,VK_PRINT:42,VK_EXECUTE:43,VK_SLEEP:95};Object.defineProperty(g,"__esModule",{value:!0})});
diff --git a/rpccalls.js b/rpccalls.js
new file mode 100644
index 0000000..af721bb
--- /dev/null
+++ b/rpccalls.js
@@ -0,0 +1,57 @@
+var axios = require('axios');
+var request = require('request');
+
+/*List of RPC calls
+Daemon -
+Get blockheight: "get_block_count"
+*/
+
+function constructCall(method, params) {
+    var body = {
+        "jsonrpc": "2.0",
+        "id": "0",
+        "method": method,
+        "params": params
+    }
+    return body;
+}
+
+var lastBlock = {
+    height: 0,
+    hash: 0,
+    setHeight: function(newHeight) {this.height = newHeight}
+}
+var daemonURL = 'http://localhost:34568/json_rpc';
+
+function daemonCall(method, params, callback, io) {
+    // Real blockchain call (now used for all cases)
+    var body = constructCall(method, params);
+    request({
+        url: daemonURL,
+        method: 'POST',
+        headers: {"content-type": "application/json"},
+        json: body
+    }, function (error, res, body) {
+        if (error) {
+            console.log("Daemon connection error:", error.message);
+            callback(null);
+            return;
+        }
+        callback(body);
+    });
+}
+
+function getBlockHeight(body) {
+    if (body == null || body.result == null || body.result.count == null) {
+        return null;
+    }
+    return body.result.count;
+}
+
+
+// Export the functions
+module.exports = {
+    daemonCall: daemonCall,
+    getBlockHeight: getBlockHeight,
+    lastBlock: lastBlock,
+};
diff --git a/user.js b/user.js
new file mode 100644
index 0000000..b4e13d9
--- /dev/null
+++ b/user.js
@@ -0,0 +1,45 @@
+function User(socketid, ip) {
+    this.id = null;
+    this.socketid = socketid;
+    this.ip = ip;
+    this.nick = null;
+    this.receiveAddy = "";
+    this.payoutAddy = "";
+    this.blockRec = null;
+    this.map = null;
+    this.player = false;
+    this.won = false;
+    this.game = null; // Reference to current game
+    this.paymentAmount = 0;
+    this.paymentVerified = false;
+}
+
+User.prototype.startGame = function(mapWidth, mapHeight) {
+    const Game = require('./game');
+    this.game = new Game(this.socketid, mapWidth, mapHeight);
+    return this.game;
+};
+
+User.prototype.verifyPayment = function(amount) {
+    this.paymentAmount = amount;
+    this.paymentVerified = true;
+    return true;
+};
+
+User.prototype.calculateReward = function() {
+    if (!this.game || this.game.gameState !== 'won') return 0;
+    
+    // Base reward is 2x the entrance fee
+    let reward = this.paymentAmount * 2;
+    
+    // Bonus for finding treasure
+    if (this.game.player.hasTreasure) {
+        reward = this.paymentAmount * 5;
+    }
+    
+    return reward;
+};
+
+module.exports = {
+  User: User
+};