refactor: blinking behavior to TimerComponent and test coverage

packages/pinball_components/lib/src/components/multiball/behaviors/multiball_blinking_behavior.dart

@@ -6,15 +6,20 @@ import 'package:pinball_flame/pinball_flame.dart';
 /// Makes a [Multiball] blink back to [MultiballLightState.lit] when
 /// [MultiballLightState.dimmed].
 /// {@endtemplate}
-class MultiballBlinkingBehavior extends Component with ParentIsA<Multiball> {
+class MultiballBlinkingBehavior extends TimerComponent
+    with ParentIsA<Multiball> {
   /// {@macro multiball_blinking_behavior}
-  MultiballBlinkingBehavior() : super();
+  MultiballBlinkingBehavior() : super(period: 0.01);
 
   final _maxBlinks = 10;
+  int _blinksCounter = 0;
   bool _isAnimating = false;
 
   void _onNewState(MultiballState state) {
-    if (state.animationState == MultiballAnimationState.animated) {
+    final animationEnabled =
+        state.animationState == MultiballAnimationState.animated;
+    final canBlink = _blinksCounter < _maxBlinks;
+    if (animationEnabled && canBlink) {
       _animate();
     } else {
       _stop();
@@ -24,28 +29,36 @@ class MultiballBlinkingBehavior extends Component with ParentIsA<Multiball> {
   Future<void> _animate() async {
     if (!_isAnimating) {
       _isAnimating = true;
-      for (var i = 0; i < _maxBlinks; i++) {
       parent.bloc.onBlink();
-        await Future<void>.delayed(
-          const Duration(milliseconds: 100),
-        );
-        parent.bloc.onBlink();
-        await Future<void>.delayed(
-          const Duration(milliseconds: 100),
-        );
-      }
-      _stop();
+      _blinksCounter++;
     }
   }
 
   void _stop() {
+    if (_isAnimating) {
       _isAnimating = false;
+      timer.stop();
+      _blinksCounter = 0;
       parent.bloc.onStop();
     }
+  }
 
   @override
   Future<void> onLoad() async {
     await super.onLoad();
+    timer.stop();
     parent.bloc.stream.listen(_onNewState);
   }
+
+  @override
+  void onTick() {
+    super.onTick();
+    if (_isAnimating) {
+      timer
+        ..reset()
+        ..start();
+    } else {
+      timer.stop();
+    }
+  }
 }

packages/pinball_components/test/src/components/multiball/behaviors/multiball_blinking_behavior_test.dart

@@ -86,37 +86,6 @@ void main() {
           verify(bloc.onStop).called(1);
         },
       );
-
-      flameTester.testGameWidget(
-        'stops animation after 2 seconds',
-        setUp: (game, tester) async {
-          final behavior = MultiballBlinkingBehavior();
-          final bloc = MockMultiballCubit();
-          final streamController = StreamController<MultiballState>();
-          whenListen(
-            bloc,
-            streamController.stream,
-            initialState: MultiballState.initial(),
-          );
-          when(bloc.onBlink).thenAnswer((_) async {});
-
-          final multiball = Multiball.test(bloc: bloc);
-          await multiball.add(behavior);
-          await game.ensureAdd(multiball);
-
-          streamController.add(
-            MultiballState(
-              animationState: MultiballAnimationState.animated,
-              lightState: MultiballLightState.lit,
-            ),
-          );
-          await tester.pump();
-          game.update(2);
-
-          await streamController.close();
-          verify(bloc.onStop).called(1);
-        },
-      );
     },
   );
 }