fiiiirst

js/assets.js

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+"use strict";
+const images = new Map();
+const imageBoundsCache = new WeakMap();
+const imageMetrics = new Map();
+function loadImages() {
+  const assets = [...SPRITES, ...DECOR_ASSETS];
+  let loaded = 0;
+  return new Promise((resolve) => {
+    for (const s of assets) {
+      const img = new Image();
+      img.onload = img.onerror = () => {
+        const w = img.naturalWidth || img.width || ALPHA_BOUNDS[s.id]?.imageW || 512;
+        const h = img.naturalHeight || img.height || ALPHA_BOUNDS[s.id]?.imageH || 512;
+        const bounds = ALPHA_BOUNDS[s.id] || { x: 0, y: 0, w, h, imageW: w, imageH: h };
+        imageMetrics.set(s.id, {
+          w,
+          h,
+          ratio: h / Math.max(w, 1),
+          visibleBottomRatio: (bounds.y + bounds.h) / Math.max(bounds.imageH, 1),
+        });
+        loaded += 1;
+        if (loaded === assets.length) resolve();
+      };
+      img.alphaBounds = ALPHA_BOUNDS[s.id] || null;
+      img.src = s.path;
+      images.set(s.id, img);
+    }
+  });
+}
+
+function imageAlphaBounds(img) {
+  if (!img) return null;
+  if (img.alphaBounds) return img.alphaBounds;
+  if (imageBoundsCache.has(img)) return imageBoundsCache.get(img);
+
+  const w = img.naturalWidth || img.width || 0;
+  const h = img.naturalHeight || img.height || 0;
+  if (!w || !h) return null;
+  const bounds = { x: 0, y: 0, w, h, imageW: w, imageH: h };
+  imageBoundsCache.set(img, bounds);
+  return bounds;
+}
+
+function getImageMetrics(idOrImg) {
+  if (typeof idOrImg === "string") return imageMetrics.get(idOrImg) || null;
+  if (!idOrImg) return null;
+  for (const [id, img] of images) {
+    if (img === idOrImg) return imageMetrics.get(id) || null;
+  }
+  const w = idOrImg.naturalWidth || idOrImg.width || 0;
+  const h = idOrImg.naturalHeight || idOrImg.height || 0;
+  return w && h ? { w, h, ratio: h / w, visibleBottomRatio: 1 } : null;
+}
+
+
+window.TarinaiAssets = { images, imageBoundsCache, imageMetrics, loadImages, imageAlphaBounds, getImageMetrics };