feat: Add rabbit entity with dynamic movement and sprite rendering

js/physics.js

@@ -12,6 +12,11 @@ function updatePhysics(timestamp) {
         updatePhysicsObjects();
     }
     
+    // Update entities
+    if (typeof updateEntities === 'function') {
+        updateEntities();
+    }
+    
     // Get visible chunks
     const visibleChunks = getVisibleChunks();