refactor: changed sparky fire zone

lib/game/components/sparky_fire_zone.dart

@@ -1,6 +1,7 @@
 // ignore_for_file: avoid_renaming_method_parameters
 
 import 'package:flame/components.dart';
+import 'package:flame_forge2d/flame_forge2d.dart';
 import 'package:flutter/material.dart';
 import 'package:pinball/flame/flame.dart';
 import 'package:pinball/game/game.dart';
@@ -8,27 +9,48 @@ import 'package:pinball_components/pinball_components.dart';
 
 // TODO(ruimiguel): create and add SparkyFireZone component here in other PR.
 
+class ControlledSparkyBumper extends SparkyBumper
+    with Controls<_SparkyBumperController> {
+  ControlledSparkyBumper() : super.a() {
+    controller = _SparkyBumperController(this);
+  }
+}
+
 /// {@template sparky_bumper_controller}
 /// Controls a [SparkyBumper].
 /// {@endtemplate}
-@visibleForTesting
-class SparkyBumperController extends ComponentController<SparkyBumper>
+class _SparkyBumperController extends ComponentController<SparkyBumper>
     with HasGameRef<PinballGame> {
   /// {@macro sparky_bumper_controller}
-  SparkyBumperController(SparkyBumper sparkyBumper) : super(sparkyBumper);
+  _SparkyBumperController(SparkyBumper sparkyBumper) : super(sparkyBumper);
 
   /// Flag for activated state of the [SparkyBumper].
   ///
   /// Used to toggle [SparkyBumper]s' state between activated and deactivated.
-  bool _isActivated = false;
+  bool isActivated = false;
 
   /// Registers when a [SparkyBumper] is hit by a [Ball].
+  ///
+  /// Triggered by [ControlledSparkyBumperBallContactCallback].
   void hit() {
-    if (_isActivated) {
+    if (isActivated) {
       component.deactivate();
     } else {
       component.activate();
     }
-    _isActivated = !_isActivated;
+    isActivated = !isActivated;
+  }
+}
+
+/// Listens when a [Ball] bounces bounces against a [SparkyBumper].
+class ControlledSparkyBumperBallContactCallback
+    extends ContactCallback<Controls<_SparkyBumperController>, Ball> {
+  @override
+  void begin(
+    Controls<_SparkyBumperController> controlledSparkyBumper,
+    Ball _,
+    Contact __,
+  ) {
+    controlledSparkyBumper.controller.hit();
   }
 }

test/game/components/sparky_fire_zone_test.dart

@@ -1,3 +1,8 @@
+// ignore_for_file: cascade_invocations
+
+import 'package:bloc_test/bloc_test.dart';
+import 'package:flame_test/flame_test.dart';
+import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
 import 'package:pinball/game/game.dart';
@@ -6,27 +11,57 @@ import 'package:pinball_components/pinball_components.dart';
 import '../../helpers/helpers.dart';
 
 void main() {
-  group('SparkyBumperController', () {
-    late SparkyBumper sparkyBumper;
+  TestWidgetsFlutterBinding.ensureInitialized();
+  final flameTester = FlameTester(EmptyPinballGameTest.new);
 
-    setUp(() {
-      sparkyBumper = MockSparkyBumper();
-    });
+  group('SparkyFireZone', () {
+    group('bumpers', () {
+      late ControlledSparkyBumper controlledSparkyBumper;
+
+      flameTester.testGameWidget(
+        'activate when deactivated bumper is hit',
+        setUp: (game, tester) async {
+          controlledSparkyBumper = ControlledSparkyBumper();
+          await game.ensureAdd(controlledSparkyBumper);
+
+          final callback = ControlledSparkyBumperBallContactCallback();
+          game.addContactCallback(callback);
 
-    test('toggle activated state when bumper is hit', () {
-      final controller = SparkyBumperController(sparkyBumper);
+          callback.begin(
+            controlledSparkyBumper,
+            MockBall(),
+            MockContact(),
+          );
+        },
+        verify: (game, tester) async {
+          expect(controlledSparkyBumper.controller.isActivated, isTrue);
+        },
+      );
 
-      when(() => sparkyBumper.activate()).thenReturn(null);
-      when(() => sparkyBumper.deactivate()).thenReturn(null);
+      flameTester.testGameWidget(
+        'deactivate when activated bumper is hit',
+        setUp: (game, tester) async {
+          controlledSparkyBumper = ControlledSparkyBumper();
+          await game.ensureAdd(controlledSparkyBumper);
 
-      controller
-        ..hit()
-        ..hit();
+          final callback = ControlledSparkyBumperBallContactCallback();
+          game.addContactCallback(callback);
 
-      verifyInOrder([
-        () => sparkyBumper.activate(),
-        () => sparkyBumper.deactivate(),
-      ]);
+          callback.begin(
+            controlledSparkyBumper,
+            MockBall(),
+            MockContact(),
+          );
+          callback.begin(
+            controlledSparkyBumper,
+            MockBall(),
+            MockContact(),
+          );
+        },
+        verify: (game, tester) async {
+          expect(controlledSparkyBumper.controller.isActivated, isFalse);
+        },
+      );
     });
   });
 }

test/helpers/mocks.dart

@@ -74,5 +74,3 @@ class MockComponentSet extends Mock implements ComponentSet {}
 class MockDashNestBumper extends Mock implements DashNestBumper {}
 
 class MockPinballAudio extends Mock implements PinballAudio {}
-
-class MockSparkyBumper extends Mock implements SparkyBumper {}