Fixes matrix transformations in sprites

sky/examples/game/lib/sprites.dart

Index: sky/examples/game/lib/sprites.dart
diff --git a/sky/examples/game/lib/sprites.dart b/sky/examples/game/lib/sprites.dart
index 74bba1538b1ba80cf742feea35a852ebc982a1c3..79a6fd3983f643de139b0910362bdb263b52208f 100644
--- a/sky/examples/game/lib/sprites.dart
+++ b/sky/examples/game/lib/sprites.dart
@@ -3,14 +3,14 @@ library sprites;
 import 'dart:sky';
 import 'dart:math' as Math;
 import 'package:vector_math/vector_math_64.dart';
-import 'package:sky/framework/app.dart';
+import 'dart:typed_data';
 import 'package:sky/framework/rendering/box.dart';
-//import 'package:sky/framework/rendering/node.dart';
 import 'package:sky/framework/rendering/object.dart';
 import 'package:sky/framework/scheduler.dart' as scheduler;
 import 'package:sky/framework/net/image_cache.dart' as image_cache;
 
 part 'sprite_box.dart';
-part 'transform_node.dart';
-part 'sprite_node.dart';
+part 'node.dart';
+part 'node_with_size.dart';
+part 'sprite.dart';
 part 'image_map.dart';