Factor out AnimatableTile{Factory}

js/animatable_tile.js

@@ -0,0 +1,17 @@
+import { Tile } from './tile.js';
+export class AnimatableTile extends Tile {
+    constructor(width, height, animations) {
+        super(width, height);
+        this.animations = animations;
+    }
+    play(name) {
+        const animation = this.animations.get(name);
+        if (animation) {
+            return this.elem.animate(...animation);
+        }
+        else {
+            return undefined;
+        }
+    }
+}
+//# sourceMappingURL=animatable_tile.js.map