fix: use both flippers on mobile (#318)

Co-authored-by: Tom Arra <tarra3@gmail.com>

lib/game/pinball_game.dart

@@ -18,7 +18,7 @@ class PinballGame extends PinballForge2DGame
         FlameBloc,
         HasKeyboardHandlerComponents,
         Controls<_GameBallsController>,
-        TapDetector {
+        MultiTouchTapDetector {
   PinballGame({
     required this.characterTheme,
     required this.audio,
@@ -80,7 +80,7 @@ class PinballGame extends PinballForge2DGame
   BoardSide? focusedBoardSide;
 
   @override
-  void onTapDown(TapDownInfo info) {
+  void onTapDown(int pointerId, TapDownInfo info) {
     if (info.raw.kind == PointerDeviceKind.touch) {
       final rocket = descendants().whereType<RocketSpriteComponent>().first;
       final bounds = rocket.topLeftPosition & rocket.size;
@@ -98,19 +98,19 @@ class PinballGame extends PinballForge2DGame
       }
     }
 
-    super.onTapDown(info);
+    super.onTapDown(pointerId, info);
   }
 
   @override
-  void onTapUp(TapUpInfo info) {
+  void onTapUp(int pointerId, TapUpInfo info) {
     _moveFlippersDown();
-    super.onTapUp(info);
+    super.onTapUp(pointerId, info);
   }
 
   @override
-  void onTapCancel() {
+  void onTapCancel(int pointerId) {
     _moveFlippersDown();
-    super.onTapCancel();
+    super.onTapCancel(pointerId);
   }
 
   void _moveFlippersDown() {
@@ -181,8 +181,8 @@ class DebugPinballGame extends PinballGame with FPSCounter {
   }
 
   @override
-  void onTapUp(TapUpInfo info) {
+  void onTapUp(int pointerId, TapUpInfo info) {
-    super.onTapUp(info);
+    super.onTapUp(pointerId, info);
 
     if (info.raw.kind == PointerDeviceKind.mouse) {
       final ball = ControlledBall.debug()

test/game/pinball_game_test.dart

@@ -323,7 +323,7 @@ void main() {
               (flipper) => flipper.side == BoardSide.left,
             );
 
-        game.onTapDown(tapDownEvent);
+        game.onTapDown(0, tapDownEvent);
 
         expect(flippers.first.body.linearVelocity.y, isNegative);
       });
@@ -346,7 +346,7 @@ void main() {
               (flipper) => flipper.side == BoardSide.right,
             );
 
-        game.onTapDown(tapDownEvent);
+        game.onTapDown(0, tapDownEvent);
 
         expect(flippers.first.body.linearVelocity.y, isNegative);
       });
@@ -369,14 +369,14 @@ void main() {
               (flipper) => flipper.side == BoardSide.left,
             );
 
-        game.onTapDown(tapDownEvent);
+        game.onTapDown(0, tapDownEvent);
 
         expect(flippers.first.body.linearVelocity.y, isNegative);
 
         final tapUpEvent = _MockTapUpInfo();
         when(() => tapUpEvent.eventPosition).thenReturn(eventPosition);
 
-        game.onTapUp(tapUpEvent);
+        game.onTapUp(0, tapUpEvent);
         await game.ready();
 
         expect(flippers.first.body.linearVelocity.y, isPositive);
@@ -400,11 +400,11 @@ void main() {
               (flipper) => flipper.side == BoardSide.left,
             );
 
-        game.onTapDown(tapDownEvent);
+        game.onTapDown(0, tapDownEvent);
 
         expect(flippers.first.body.linearVelocity.y, isNegative);
 
-        game.onTapCancel();
+        game.onTapCancel(0);
 
         expect(flippers.first.body.linearVelocity.y, isPositive);
       });
@@ -426,7 +426,7 @@ void main() {
 
         final plunger = game.descendants().whereType<Plunger>().first;
 
-        game.onTapDown(tapDownEvent);
+        game.onTapDown(0, tapDownEvent);
 
         game.update(1);
 
@@ -452,7 +452,7 @@ void main() {
         final previousBalls =
             game.descendants().whereType<ControlledBall>().toList();
 
-        game.onTapUp(tapUpEvent);
+        game.onTapUp(0, tapUpEvent);
         await game.ready();
 
         expect(