feat: Implement Event Deck, Monster Spawning, and AI Movement

src/view/GameRenderer.js

@@ -467,33 +467,52 @@ export class GameRenderer {
         }
     }
 
+    // Optimized getTexture with pending request queue
     getTexture(path, onLoad) {
-        if (!this.textureCache.has(path)) {
-
-            const tex = this.textureLoader.load(
-                path,
-                (texture) => {
-
-                    texture.needsUpdate = true;
-                    if (onLoad) onLoad(texture);
-                },
-                undefined,
-                (err) => {
-                    console.error(`[TextureLoader] [Checked] ✗ Failed to load: ${path}`, err);
-                }
-            );
-            tex.magFilter = THREE.NearestFilter;
-            tex.minFilter = THREE.NearestFilter;
-            tex.colorSpace = THREE.SRGBColorSpace;
-            this.textureCache.set(path, tex);
-        } else {
-            // Already cached, call onLoad immediately if texture is ready
-            const cachedTex = this.textureCache.get(path);
-            if (onLoad && cachedTex.image) {
-                onLoad(cachedTex);
-            }
+        // 1. Check Cache
+        if (this.textureCache.has(path)) {
+            const tex = this.textureCache.get(path);
+            if (onLoad) onLoad(tex);
+            return;
         }
-        return this.textureCache.get(path);
+
+        // 2. Check Pending Requests (Deduplication)
+        if (!this._pendingTextureRequests) this._pendingTextureRequests = new Map();
+
+        if (this._pendingTextureRequests.has(path)) {
+            this._pendingTextureRequests.get(path).push(onLoad);
+            return;
+        }
+
+        // 3. Start Load
+        this._pendingTextureRequests.set(path, [onLoad]);
+
+        this.textureLoader.load(
+            path,
+            (texture) => {
+                // Success
+                texture.magFilter = THREE.NearestFilter;
+                texture.minFilter = THREE.NearestFilter;
+                texture.colorSpace = THREE.SRGBColorSpace;
+
+                this.textureCache.set(path, texture);
+
+                // Execute all waiting callbacks
+                const callbacks = this._pendingTextureRequests.get(path);
+                if (callbacks) {
+                    callbacks.forEach(cb => { if (cb) cb(texture); });
+                    this._pendingTextureRequests.delete(path);
+                }
+            },
+            undefined, // onProgress
+            (err) => {
+                console.error(`[GameRenderer] Failed to load texture: ${path}`, err);
+                const callbacks = this._pendingTextureRequests.get(path);
+                if (callbacks) {
+                    this._pendingTextureRequests.delete(path);
+                }
+            }
+        );
     }
 
     addTile(cells, type, tileDef, tileInstance) {