exposing objects layer from tiled file

doc/examples/tiled/lib/main.dart

@@ -1,14 +1,43 @@
 import 'package:flame/components/tiled_component.dart';
 import 'package:flame/game.dart';
-import 'package:flutter/widgets.dart';
+import 'package:flame/flame.dart';
+import 'package:flame/position.dart';
+import 'package:flame/animation.dart';
+import 'package:flutter/widgets.dart' hide Animation;
+import 'package:tiled/tiled.dart' show ObjectGroup, TmxObject;
 
 void main() {
+  Flame.images.load('coins.png');
   final TiledGame game = TiledGame();
   runApp(game.widget);
 }
 
 class TiledGame extends BaseGame {
+  TiledComponent tiledMap;
+  Animation a;
   TiledGame() {
-    add(TiledComponent('map.tmx'));
+    tiledMap = TiledComponent('map.tmx');
+    add(tiledMap);
+    a = Animation.sequenced('coins.png', 8, textureWidth: 20);
+  }
+
+  @override
+  void render(Canvas canvas) {
+    super.render(canvas);
+    final ObjectGroup obj = tiledMap.getObjectLayerByName("AnimatedCoins");
+    if (obj == null) {
+      return;
+    }
+    for (TmxObject obj in obj.tmxObjects) {
+      final Rect rect = Rect.fromLTWH(obj.x.toDouble(), obj.y.toDouble(), 30.0, 30.0);
+      final position = Position(obj.x.toDouble(), obj.y.toDouble());
+      a.getSprite().renderPosition(canvas, position);
+    }
+  }
+
+  @override
+  void update(double t) {
+    super.update(t);
+    a.update(t);
   }
 }

doc/examples/tiled/pubspec.yaml

@@ -21,3 +21,4 @@ flutter:
     - assets/tiles/map.tmx
     - assets/images/map-level1.png
     - assets/images/map-level2.png
+    - assets/images/coins.png

lib/components/tiled_component.dart

@@ -69,10 +69,8 @@ class TiledComponent extends Component {
       final image = images[tile.image.source];
 
       final rect = tile.computeDrawRect();
-      final src = Rect.fromLTWH(rect.left.toDouble(), rect.top.toDouble(),
-          rect.width.toDouble(), rect.height.toDouble());
-      final dst = Rect.fromLTWH(tile.x.toDouble(), tile.y.toDouble(),
-          rect.width.toDouble(), rect.height.toDouble());
+      final src = Rect.fromLTWH(rect.left.toDouble(), rect.top.toDouble(), rect.width.toDouble(), rect.height.toDouble());
+      final dst = Rect.fromLTWH(tile.x.toDouble(), tile.y.toDouble(), rect.width.toDouble(), rect.height.toDouble());
 
       c.drawImageRect(image, src, dst, paint);
     });
@@ -80,4 +78,10 @@ class TiledComponent extends Component {
 
   @override
   void update(double t) {}
+  ObjectGroup getObjectLayerByName(String name) {
+    if (!loaded()) {
+      return null;
+    }
+    return map.objectGroups.firstWhere((objectGroup) => objectGroup.name == name);
+  }
 }