refactor: add RandomABAudio

packages/pinball_audio/lib/src/pinball_audio.dart

@@ -116,73 +116,45 @@ class _LoopAudio extends _Audio {
   }
 }
 
-class _BumperAudio extends _Audio {
-  _BumperAudio({
+class _RandomABAudio extends _Audio {
+  _RandomABAudio({
     required this.createAudioPool,
     required this.seed,
+    required this.audioAssetA,
+    required this.audioAssetB,
+    this.volume,
   });
 
   final CreateAudioPool createAudioPool;
   final Random seed;
+  final String audioAssetA;
+  final String audioAssetB;
+  final double? volume;
 
-  late AudioPool bumperA;
-  late AudioPool bumperB;
+  late AudioPool audioA;
+  late AudioPool audioB;
 
   @override
   Future<void> load() async {
     await Future.wait(
       [
         createAudioPool(
-          prefixFile(Assets.sfx.bumperA),
+          prefixFile(audioAssetA),
           maxPlayers: 4,
           prefix: '',
-        ).then((pool) => bumperA = pool),
+        ).then((pool) => audioA = pool),
         createAudioPool(
-          prefixFile(Assets.sfx.bumperB),
+          prefixFile(audioAssetB),
           maxPlayers: 4,
           prefix: '',
-        ).then((pool) => bumperB = pool),
+        ).then((pool) => audioB = pool),
       ],
     );
   }
 
   @override
   void play() {
-    (seed.nextBool() ? bumperA : bumperB).start(volume: 0.6);
-  }
-}
-
-class _KickerAudio extends _Audio {
-  _KickerAudio({
-    required this.createAudioPool,
-    required this.seed,
-  });
-
-  final CreateAudioPool createAudioPool;
-  final Random seed;
-
-  late AudioPool kickerA;
-  late AudioPool kickerB;
-
-  @override
-  Future<void> load() async {
-    await Future.wait(
-      [
-        createAudioPool(
-          prefixFile(Assets.sfx.kickerA),
-          prefix: '',
-        ).then((pool) => kickerA = pool),
-        createAudioPool(
-          prefixFile(Assets.sfx.kickerB),
-          prefix: '',
-        ).then((pool) => kickerB = pool),
-      ],
-    );
-  }
-
-  @override
-  void play() {
-    (seed.nextBool() ? kickerA : kickerB).start(volume: 0.6);
+    (seed.nextBool() ? audioA : audioB).start(volume: volume ?? 1);
   }
 }
 
@@ -278,13 +250,19 @@ class PinballAudioPlayer {
         playSingleAudio: _playSingleAudio,
         path: Assets.sfx.gameOverVoiceOver,
       ),
-      PinballAudio.bumper: _BumperAudio(
+      PinballAudio.bumper: _RandomABAudio(
         createAudioPool: _createAudioPool,
         seed: _seed,
+        audioAssetA: Assets.sfx.bumperA,
+        audioAssetB: Assets.sfx.bumperB,
+        volume: 0.6,
       ),
-      PinballAudio.kicker: _KickerAudio(
+      PinballAudio.kicker: _RandomABAudio(
         createAudioPool: _createAudioPool,
         seed: _seed,
+        audioAssetA: Assets.sfx.kickerA,
+        audioAssetB: Assets.sfx.kickerB,
+        volume: 0.6,
       ),
       PinballAudio.cowMoo: _ThrottledAudio(
         preCacheSingleAudio: _preCacheSingleAudio,

packages/pinball_audio/test/src/pinball_audio_test.dart

@@ -125,6 +125,7 @@ void main() {
         verify(
           () => createAudioPool.onCall(
             'packages/pinball_audio/${Assets.sfx.kickerA}',
+            maxPlayers: 4,
             prefix: '',
           ),
         ).called(1);
@@ -132,6 +133,7 @@ void main() {
         verify(
           () => createAudioPool.onCall(
             'packages/pinball_audio/${Assets.sfx.kickerB}',
+            maxPlayers: 4,
             prefix: '',
           ),
         ).called(1);
@@ -263,6 +265,7 @@ void main() {
         when(
           () => createAudioPool.onCall(
             'packages/pinball_audio/${Assets.sfx.kickerA}',
+            maxPlayers: any(named: 'maxPlayers'),
             prefix: any(named: 'prefix'),
           ),
         ).thenAnswer((_) async => kickerAPool);
@@ -273,6 +276,7 @@ void main() {
         when(
           () => createAudioPool.onCall(
             'packages/pinball_audio/${Assets.sfx.kickerB}',
+            maxPlayers: any(named: 'maxPlayers'),
             prefix: any(named: 'prefix'),
           ),
         ).thenAnswer((_) async => kickerBPool);