refactor: Optimize rendering with chunk canvas caching and performance improvements

js/world.js

@@ -528,11 +528,11 @@ function generateChunksAroundPlayer() {
         const key = getChunkKey(chunkX, chunkY);
         
         // Always generate stone layer chunks
+        const isNewChunk = !chunks.has(key);
         getOrCreateChunk(chunkX, chunkY);
         
-        // Mark as dirty only if it's a new chunk or if it's visible
-        if (!chunks.has(key) || visibleChunks.some(chunk => 
-            chunk.chunkX === chunkX && chunk.chunkY === chunkY && chunk.isVisible)) {
+        // Mark as dirty only if it's a new chunk
+        if (isNewChunk) {
             dirtyChunks.add(key);
         }
     }