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jwinterm
fad2a695bd
A browser-based roguelike synchronized with crypto block timing. A run is a race against the next block: reach the exit before the block lands, or the house wins. The same codebase runs the solo dungeon, the social Tavern, and operator-selected PvP and race rulesets, with separate free and paid leaderboards. Self-hostable under the MIT License. See README.md to run it, docs/ARCHITECTURE.md for the design, and docs/DEPLOY.md to operate an instance.
43 lines
1.7 KiB
JavaScript
43 lines
1.7 KiB
JavaScript
// Designed room: loads an imported Tiled room (from tmx_import.py): layered tile-index grids
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// + a tileset, and draws the layers (back-to-front) beneath the avatars. The server uses the
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// same room's walkability/dims for collision, so visuals and movement match.
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(function (root) {
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'use strict';
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var RK = root.RK = root.RK || {};
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RK.activeRoom = null;
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RK.loadRoom = function (url, cb) {
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if (!url) { if (cb) cb(null); return; }
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fetch(url).then(function (r) { return r.json(); }).then(function (desc) {
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var atlas = new RK.TilesetAtlas(desc.tileset, { tile: desc.tile, spacing: desc.spacing });
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atlas.onReady(function () {
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RK.activeRoom = { desc: desc, atlas: atlas };
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if (cb) cb(RK.activeRoom);
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});
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}).catch(function (e) {
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if (root.console) console.warn('room load failed:', e.message);
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if (cb) cb(null);
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});
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};
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RK.roomReady = function () {
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return !!(RK.activeRoom && RK.activeRoom.atlas && RK.activeRoom.atlas.ready);
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};
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// Draw the room's layers (back-to-front) onto a 2D canvas at the given cell size.
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RK.drawRoomCanvas = function (ctx, cell) {
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if (!RK.roomReady()) return;
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var d = RK.activeRoom.desc, a = RK.activeRoom.atlas;
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ctx.imageSmoothingEnabled = false;
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for (var li = 0; li < d.layerOrder.length; li++) {
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var grid = d.layers[d.layerOrder[li]];
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for (var y = 0; y < d.rows; y++) {
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var row = grid[y];
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for (var x = 0; x < d.cols; x++) {
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if (row[x] >= 0) a.drawIndex(ctx, row[x], x * cell, y * cell, cell);
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}
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}
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}
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};
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})(window);
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