mirror of
https://github.com/Such-Software/wownerogue.git
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jwinterm
175effd6fa
Zoom: the wheel handler based its step on a hardcoded 1.7, but iso defaults to 1.0 — so the first scroll (either direction) jumped up to ~1.7 and read as "always zoom in". Base the step on the CURRENT effective zoom via SP._defaultZoom() instead. Same mode-aware default now used by the camera. Iso occlusion: tall walls (184px) hide the floor/openings behind them (inherent to iso painter order). Add a cutaway — walls between the camera and the player (higher x+y, within ~3 cells) draw at 0.28 alpha so you can see yourself and the openings right in front of you.
418 lines
20 KiB
JavaScript
418 lines
20 KiB
JavaScript
// IsoRenderer — canvas isometric projection using Kenney's Isometric Miniature Dungeon pack.
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// It draws the same Scene as the top-down renderers, preserving the shared Room contract.
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(function (root) {
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'use strict';
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function IsoRenderer(host, opts) {
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opts = opts || {};
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this.name = 'iso';
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this.host = host;
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this.assets = (root.RK && ((RK.activeIsoAssets && RK.activeIsoAssets()) || RK.isoAssets)) || {};
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this.tileW = opts.tileW || (this.assets.tile && this.assets.tile.w) || 84;
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this.tileH = opts.tileH || (this.assets.tile && this.assets.tile.h) || 42;
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this.imageW = opts.imageW || (this.assets.tile && this.assets.tile.imageW) || 92;
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this.imageH = opts.imageH || (this.assets.tile && this.assets.tile.imageH) || 184;
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this.canvas = document.createElement('canvas');
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this.canvas.className = 'rk-canvas';
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this.ctx = this.canvas.getContext('2d');
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this.cache = {};
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this.tintCache = {};
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this.boundsCache = {};
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this.last = {};
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this.lastScene = null;
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this.enabled = !(root.RK && RK.canUsePack && this.assets.pack && !RK.canUsePack(this.assets.pack));
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this._raf = null;
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this._animating = false;
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host.appendChild(this.canvas);
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if (this.enabled) this._preload();
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}
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IsoRenderer.prototype._load = function (url) {
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if (!url) return null;
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if (this.cache[url]) return this.cache[url];
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var rec = this.cache[url] = { ready: false, img: new Image() };
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var self = this;
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rec.img.onload = function () { rec.ready = true; self._invalidate(); };
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rec.img.onerror = function () { rec.error = true; };
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rec.img.src = url;
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return rec;
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};
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IsoRenderer.prototype._invalidate = function () {
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if (this._raf || !this.lastScene) return;
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var self = this;
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this._raf = requestAnimationFrame(function () {
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self._raf = null;
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if (self.lastScene) self.render(self.lastScene);
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});
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};
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IsoRenderer.prototype._preload = function () {
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var tiles = this.assets.tiles || {};
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for (var k in tiles) this._load(tiles[k]);
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var self = this;
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function loadCharacter(ch) {
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if (!ch) return;
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self._load(ch.idle);
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(ch.run || []).forEach(self._load.bind(self));
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}
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var ch = this.assets.character || {};
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loadCharacter(ch);
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var dirs = this.assets.directions || {};
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for (var d in dirs) loadCharacter(dirs[d]);
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};
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IsoRenderer.prototype._project = function (x, y, originX, originY) {
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return {
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x: originX + (x - y) * this.tileW / 2,
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y: originY + (x + y) * this.tileH / 2
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};
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};
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IsoRenderer.prototype._drawImage = function (img, cx, baseY, w, h) {
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this.ctx.drawImage(img, cx - w / 2, baseY - h, w, h);
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};
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// Map a dungeon FEATURE entity (entrance/exit/treasure/item) to a pack tile: stairs for the
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// entrance/exit, a chest for treasure/items. Null if the pack has no fitting tile (→ glyph).
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IsoRenderer.prototype._featureTileUrl = function (e) {
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var tiles = this.assets.tiles || {};
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var c = e.char;
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if (c === '<' || c === '>') return tiles.stairs || null;
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if (c === '$' || c === '$W' || c === '$M') return tiles.chestClosed || tiles.chest || null;
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return null;
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};
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// Draw a text glyph centered at a projected cell (feature fallback when no pack tile fits).
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IsoRenderer.prototype._glyph = function (cx, cy, ch, color) {
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var ctx = this.ctx;
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ctx.save();
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ctx.font = 'bold ' + Math.round(this.tileH * 0.95) + "px monospace";
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ctx.textAlign = 'center'; ctx.textBaseline = 'middle';
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ctx.fillStyle = color || '#fff';
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ctx.fillText(ch, cx, cy);
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ctx.restore();
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};
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// A flat iso diamond in the legend colour — the placeholder a tile draws while its pack image
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// loads (or if an image is missing), so the view shows the dungeon shape instead of going black.
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IsoRenderer.prototype._diamond = function (cx, cy, color) {
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var ctx = this.ctx, hw = this.tileW / 2, hh = this.tileH / 2;
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ctx.beginPath();
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ctx.moveTo(cx, cy - hh); ctx.lineTo(cx + hw, cy); ctx.lineTo(cx, cy + hh); ctx.lineTo(cx - hw, cy);
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ctx.closePath();
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ctx.fillStyle = color; ctx.fill();
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ctx.strokeStyle = 'rgba(0,0,0,0.28)'; ctx.lineWidth = 1; ctx.stroke();
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};
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// Soft contact shadow grounds props/characters so they don't float on the floor.
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IsoRenderer.prototype._contactShadow = function (cx, cy, rx, ry) {
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var ctx = this.ctx;
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ctx.save();
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ctx.globalAlpha = 0.28;
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ctx.fillStyle = '#000';
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ctx.beginPath();
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ctx.ellipse(cx, cy, rx, ry, 0, 0, Math.PI * 2);
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ctx.fill();
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ctx.restore();
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};
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// Warm radial vignette — an ambient tavern glow that darkens the edges and lifts the centre,
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// the "juice" that makes the flat canvas feel lit rather than pasted.
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IsoRenderer.prototype._vignette = function () {
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var ctx = this.ctx, w = this.canvas.width, h = this.canvas.height;
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var g = ctx.createRadialGradient(w / 2, h * 0.46, Math.min(w, h) * 0.18,
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w / 2, h * 0.46, Math.max(w, h) * 0.62);
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g.addColorStop(0, 'rgba(255, 214, 150, 0.10)');
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g.addColorStop(0.55, 'rgba(0, 0, 0, 0)');
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g.addColorStop(1, 'rgba(0, 0, 0, 0.42)');
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ctx.save();
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ctx.globalCompositeOperation = 'source-over';
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ctx.fillStyle = g;
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ctx.fillRect(0, 0, w, h);
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ctx.restore();
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};
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IsoRenderer.prototype._imageBounds = function (img) {
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if (!img) return null;
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var key = img.src || img._rkBoundsKey || null;
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if (key && this.boundsCache[key]) return this.boundsCache[key];
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var w = img.naturalWidth || img.width;
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var h = img.naturalHeight || img.height;
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var cv = document.createElement('canvas');
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cv.width = w;
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cv.height = h;
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var ctx = cv.getContext('2d');
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ctx.drawImage(img, 0, 0);
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var data = ctx.getImageData(0, 0, w, h).data;
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var minX = w, minY = h, maxX = -1, maxY = -1;
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for (var y = 0; y < h; y++) {
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for (var x = 0; x < w; x++) {
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if (data[(y * w + x) * 4 + 3] < 8) continue;
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if (x < minX) minX = x;
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if (y < minY) minY = y;
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if (x > maxX) maxX = x;
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if (y > maxY) maxY = y;
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}
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}
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var bounds = maxX < minX ? { x: 0, y: 0, w: w, h: h } : { x: minX, y: minY, w: maxX - minX + 1, h: maxY - minY + 1 };
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if (key) this.boundsCache[key] = bounds;
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return bounds;
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};
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IsoRenderer.prototype._drawSpriteImage = function (img, cx, baseY, h) {
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var b = this._imageBounds(img);
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if (!b) return;
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var w = h * (b.w / b.h);
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this.ctx.drawImage(img, b.x, b.y, b.w, b.h, cx - w / 2, baseY - h, w, h);
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};
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IsoRenderer.prototype._tintedImage = function (img, tint) {
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if (!img || !tint) return img;
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var key = img.src + '|' + tint;
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if (this.tintCache[key]) return this.tintCache[key];
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var cv = document.createElement('canvas');
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cv.width = img.naturalWidth || img.width;
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cv.height = img.naturalHeight || img.height;
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var ctx = cv.getContext('2d');
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ctx.drawImage(img, 0, 0);
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ctx.globalCompositeOperation = 'source-atop';
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ctx.globalAlpha = 0.42;
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ctx.fillStyle = tint;
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ctx.fillRect(0, 0, cv.width, cv.height);
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ctx.globalAlpha = 1;
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ctx.globalCompositeOperation = 'source-over';
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cv._rkBoundsKey = key;
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this.tintCache[key] = cv;
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return cv;
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};
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IsoRenderer.prototype._skinTintFor = function (visual) {
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var ap = visual && visual.appearance;
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var skin = ap && ap.colors && ap.colors.skin;
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if (!skin || skin === 'natural') return null;
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var tones = root.RK && RK.CHAR_SKIN_TONES;
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var tone = tones && tones[skin];
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return (tone && tone.color) || null;
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};
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IsoRenderer.prototype._tileUrl = function (kind) {
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var tiles = this.assets.tiles || {};
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return tiles[kind] || tiles.fallback || tiles.floor;
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};
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// Deterministic per-cell hash (no RNG — stable across frames/reloads).
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function cellHash(x, y) {
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var h = (x * 73856093) ^ (y * 19349663);
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h = (h ^ (h >>> 13)) >>> 0;
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return h / 4294967295;
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}
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// Wall-family kinds share edge-run detection so a window/door in a wall counts as wall.
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var WALLISH = { wall: 1, window: 1, door: 1, archway: 1 };
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IsoRenderer.prototype._isWall = function (scene, x, y) {
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if (x < 0 || y < 0 || y >= scene.rows || x >= scene.cols) return false;
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return !!WALLISH[scene.grid[y][x]];
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};
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// Iso walls have a facing. A segment running along grid-x uses the base (_S) rotation; one
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// running along grid-y uses the perpendicular (`<kind>Y`, _W) rotation; a true corner (both
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// axes present) uses the corner tile. This is what makes enclosing walls read as continuous
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// faces instead of thin disconnected slabs on the y-running edges.
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IsoRenderer.prototype._wallVariant = function (scene, x, y, kind) {
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var tiles = this.assets.tiles || {};
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var xRun = this._isWall(scene, x - 1, y) || this._isWall(scene, x + 1, y);
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var yRun = this._isWall(scene, x, y - 1) || this._isWall(scene, x, y + 1);
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if (xRun && yRun && kind === 'wall' && tiles.wallCorner) return 'wallCorner';
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if (yRun && !xRun && tiles[kind + 'Y']) return kind + 'Y';
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return kind;
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};
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// Sprinkle floor variants deterministically so the ground isn't a flat identical sea.
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IsoRenderer.prototype._floorVariant = function (kind, x, y) {
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var tiles = this.assets.tiles || {};
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var r = cellHash(x, y);
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if (kind === 'floor' && tiles.floorAlt && r > 0.86) return 'floorAlt';
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if (kind === 'floor2' && tiles.stoneTile && r > 0.6) return 'stoneTile';
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if (kind === 'floor2' && tiles.floor2Alt && r > 0.82) return 'floor2Alt';
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return kind;
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};
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IsoRenderer.prototype._visualFor = function (e) {
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var appearance = (e && e.appearance) || { avatar: (e && e.avatar) || 'default' };
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if (root.RK && RK.avatarVisuals && RK.avatarVisuals.resolve) {
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return RK.avatarVisuals.resolve(appearance, { projection: 'iso', context: 'tavern', entity: e });
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}
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if (root.RK && RK.resolveAppearance) return RK.resolveAppearance(e, 'iso');
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return null;
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};
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IsoRenderer.prototype._charFrame = function (e, now) {
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var visual = this._visualFor(e);
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if (visual && visual.allowed === false) return null;
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var dirs = this.assets.directions || {};
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var key = e.id || 'anon';
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var st = this.last[key] || (this.last[key] = { x: e.x, y: e.y, t: 0, facing: 'down' });
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if (st.x !== e.x || st.y !== e.y) {
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// Infer facing from the actual movement delta — the SP game doesn't send player.facing
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// (only the tavern does), so without this the character always faced 'down' (SW) no matter
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// which way it moved. Explicit e.facing (tavern) still wins below.
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var ddx = e.x - st.x, ddy = e.y - st.y;
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if (Math.abs(ddx) >= Math.abs(ddy)) st.facing = ddx > 0 ? 'right' : 'left';
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else st.facing = ddy > 0 ? 'down' : 'up';
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st.x = e.x; st.y = e.y; st.t = now;
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}
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var facing = (e && e.facing) || st.facing || 'down';
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var moving = (now - st.t) < 360;
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var ch = dirs[facing] || (visual && visual.character) || (this.assets.character || {});
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if (!moving || !ch.run || ch.run.length === 0) return { url: ch.idle, character: ch, visual: visual };
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this._animating = true;
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return { url: ch.run[Math.floor(now / 80) % ch.run.length], character: ch, visual: visual };
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};
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IsoRenderer.prototype.render = function (scene) {
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if (!scene) return;
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this.lastScene = scene;
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this._animating = false;
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var margin = 28;
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var originX = margin + scene.rows * this.tileW / 2 + this.tileW;
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var originY = margin + this.imageH;
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this.canvas.width = Math.ceil((scene.cols + scene.rows) * this.tileW / 2 + margin * 2 + this.tileW * 2);
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this.canvas.height = Math.ceil((scene.cols + scene.rows) * this.tileH / 2 + this.imageH + margin * 2);
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var ctx = this.ctx;
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ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
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ctx.fillStyle = scene.background || '#0a0c0f';
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ctx.fillRect(0, 0, this.canvas.width, this.canvas.height);
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ctx.imageSmoothingEnabled = true;
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// Furniture kinds draw a floor tile as the base + the prop sprite on top (same idea as the
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// tiled renderer's `over` compositing). Everything else is a plain ground/wall tile.
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var PROP = { bar: 1, table: 1, chair: 1, keg: 1, shelf: 1, barrel: 1, crate: 1, chest: 1 };
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var legend = scene.legend || {};
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var items = [], x, y, kind, p, def;
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for (y = 0; y < scene.rows; y++) {
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for (x = 0; x < scene.cols; x++) {
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kind = scene.grid[y][x];
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def = legend[kind];
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p = this._project(x, y, originX, originY);
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items.push({ type: 'tile', kind: kind, x: x, y: y, sx: p.x, sy: p.y, depth: x + y });
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if (PROP[kind]) {
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items.push({ type: 'prop', kind: kind, x: x, y: y, sx: p.x, sy: p.y, depth: x + y + 0.25 });
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}
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// Fire fixtures (torch/hearth) & hazard tiles (lava/poison/spikes): a floor tile is
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// the base (drawn above via fallback); RK.fx paints the animated flame / pulse.
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if (def && (def.fx === 'fire' || def.hazard)) {
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items.push({ type: 'fx', def: def, x: x, y: y, sx: p.x, sy: p.y, depth: x + y + 0.3 });
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}
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}
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}
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for (var i = 0; i < scene.entities.length; i++) {
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var e = scene.entities[i];
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p = this._project(e.x, e.y, originX, originY);
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items.push({ type: 'entity', e: e, sx: p.x, sy: p.y, depth: e.x + e.y + 0.55 });
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// Sticky camera target (keep last if the player is momentarily absent).
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if (e.you || e.kind === 'player') { this.focusPoint = { x: p.x, y: p.y + this.tileH }; this._plx = e.x; this._ply = e.y; }
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}
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items.sort(function (a, b) { return a.depth === b.depth ? (a.y || 0) - (b.y || 0) : a.depth - b.depth; });
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var now = Date.now();
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for (i = 0; i < items.length; i++) {
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var it = items[i];
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if (it.type === 'tile') {
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var tileKind = PROP[it.kind] ? 'floor' : it.kind;
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if (WALLISH[tileKind]) tileKind = this._wallVariant(scene, it.x, it.y, tileKind);
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else tileKind = this._floorVariant(tileKind, it.x, it.y);
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var rec = this._load(this._tileUrl(tileKind));
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// Cutaway: fade the walls sitting between the camera and the player (higher x+y, toward
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// the SE camera, within a few cells) so they don't hide the player or the openings right
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// in front of them. Iso occlusion otherwise makes near hallways impossible to read.
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var cut = WALLISH[it.kind] && this._plx != null &&
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it.x >= this._plx && it.y >= this._ply &&
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(it.x + it.y) > (this._plx + this._ply) &&
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((it.x - this._plx) + (it.y - this._ply)) <= 3;
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if (cut) ctx.globalAlpha = 0.28;
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if (rec && rec.ready) this._drawImage(rec.img, it.sx, it.sy + this.tileH, this.imageW, this.imageH);
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else if (it.kind !== 'dark') this._diamond(it.sx, it.sy + this.tileH * 0.5, (legend[it.kind] && legend[it.kind].color) || '#3a4048');
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ctx.globalAlpha = 1;
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} else if (it.type === 'prop') {
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this._contactShadow(it.sx, it.sy + this.tileH * 1.4, 22, 9);
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rec = this._load(this._tileUrl(it.kind));
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if (rec && rec.ready) this._drawImage(rec.img, it.sx, it.sy + this.tileH, this.imageW, this.imageH);
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} else if (it.type === 'fx' && root.RK && RK.fx) {
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this._animating = true; // keep the RAF alive so the flame/pulse animates
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var fcx = it.sx, fgy = it.sy + this.tileH * 1.15;
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if (it.def.hazard) {
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var hw = this.tileW / 2, hh = this.tileH / 2, hy = it.sy + this.tileH;
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RK.fx.hazard(ctx, it.def.hazard, fcx, hy, this.tileW * 0.5, now, function (c) {
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c.beginPath();
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c.moveTo(fcx, hy - hh); c.lineTo(fcx + hw, hy);
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c.lineTo(fcx, hy + hh); c.lineTo(fcx - hw, hy); c.closePath();
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});
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} else {
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var fscale = this.tileW * (it.def.fxScale || 0.34) * 0.7;
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RK.fx.fire(ctx, fcx, fgy, fscale, now, (it.x * 7 + it.y * 13) % 97);
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}
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} else if (it.type === 'entity') {
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// Dungeon FEATURES/ITEMS (entrance/exit/treasure/items) are tiles/glyphs, NOT avatars.
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// The iso renderer is shared with the tavern (where every entity is an avatar); without
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// this branch the entrance was drawn as a male character — the "copy of the player at
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// the start" the map origin showed.
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if (it.e.kind === 'feature' || it.e.kind === 'item') {
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var furl = this._featureTileUrl(it.e);
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var frec = furl && this._load(furl);
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if (frec && frec.ready) this._drawImage(frec.img, it.sx, it.sy + this.tileH, this.imageW, this.imageH);
|
|
else this._glyph(it.sx, it.sy + this.tileH * 0.4, it.e.char || '?', it.e.color || '#fff');
|
|
continue;
|
|
}
|
|
this._contactShadow(it.sx, it.sy + this.tileH * 1.15, 18, 7);
|
|
var frame = this._charFrame(it.e, now);
|
|
rec = this._load(frame && frame.url);
|
|
if (rec && rec.ready) {
|
|
var ch = frame.character || this.assets.character || {};
|
|
// Monsters use the same character art — tint them RED so they don't read as a
|
|
// second player following you around.
|
|
var tint = it.e.kind === 'monster' ? '#f85149' : this._skinTintFor(frame.visual);
|
|
this._drawSpriteImage(this._tintedImage(rec.img, tint), it.sx, it.sy + this.tileH * 0.95, ch.imageH || 92);
|
|
} else {
|
|
ctx.beginPath();
|
|
ctx.arc(it.sx, it.sy, 8, 0, Math.PI * 2);
|
|
ctx.fillStyle = it.e.color || '#d7dbe0';
|
|
ctx.fill();
|
|
}
|
|
if (it.e.you) {
|
|
ctx.strokeStyle = 'rgba(255,255,255,0.85)';
|
|
ctx.lineWidth = 2;
|
|
ctx.beginPath();
|
|
ctx.ellipse(it.sx, it.sy + this.tileH * 0.7, 20, 8, 0, 0, Math.PI * 2);
|
|
ctx.stroke();
|
|
}
|
|
if (it.e.label) {
|
|
ctx.fillStyle = '#d7dbe0';
|
|
ctx.font = '11px monospace';
|
|
ctx.textAlign = 'center';
|
|
ctx.fillText(it.e.label, it.sx, it.sy - 62);
|
|
}
|
|
}
|
|
}
|
|
this._vignette();
|
|
if (this._animating) this._invalidate();
|
|
};
|
|
|
|
IsoRenderer.prototype.destroy = function () {
|
|
if (this._raf) cancelAnimationFrame(this._raf);
|
|
if (this.canvas && this.canvas.parentNode) this.canvas.parentNode.removeChild(this.canvas);
|
|
this.canvas = null;
|
|
this.ctx = null;
|
|
this.cache = {};
|
|
this.tintCache = {};
|
|
this.boundsCache = {};
|
|
this.last = {};
|
|
this.lastScene = null;
|
|
};
|
|
|
|
root.RK = root.RK || {};
|
|
root.RK.IsoRenderer = IsoRenderer;
|
|
})(window);
|