SoundInstance API WIP

DaggerFramework/Source/Audio/AudioBackend.cs

@@ -13,13 +13,11 @@ namespace DaggerFramework.Audio
         // SOUND
         public abstract void PlaySound(Sound sound, string bus = "Master", float pitch = 1.0f, float volume = 1.0f);
         public void PlaySound(Sound sound, string bus = "Master") => PlaySound(sound, bus, default, default);
-        public void PlaySoundVariation(Sound sound, string bus = "Master", float pitchVariation = 0.1f, float volume = 1.0f)
-        {
-            var maxPitch = 1.0f + pitchVariation;
-            var minPitch = 1.0f - pitchVariation;
 
-            var pitch = (float)_random.NextDouble() * (maxPitch - minPitch) + minPitch;
-            PlaySound(sound, bus, pitch, volume);
+        public SoundInstance CreateInstance(Sound sound)
+        {
+            var instance = new SoundInstance(this, sound);
+            return instance;
         }
 
         // EFFECTS
@@ -32,9 +30,4 @@ namespace DaggerFramework.Audio
 
         private LehmerRandom _random = new LehmerRandom();
     }
-
-    public struct SoundInstance
-    {
-
-    }
 }

DaggerFramework/Source/Audio/SoundInstance.cs

@@ -0,0 +1,46 @@
+namespace DaggerFramework.Audio
+{
+    public class SoundInstance
+    {
+        public SoundInstance(AudioBackend backend, Sound sound)
+        {
+            _backend = backend;
+            _sound = sound;
+        }
+
+        public SoundInstance PitchVariation(float min, float max)
+        {
+            var random = new LehmerRandom();
+            _pitch = (float)random.NextDouble() * (max - min) + min;
+            return this;
+        }
+
+        public SoundInstance VolumeVariation(float min, float max)
+        {
+            var random = new LehmerRandom();
+            _volume = (float)random.NextDouble() * (max - min) + min;
+            return this;
+        }
+
+        public SoundInstance OnBus(string bus = "Master")
+        {
+            _bus = bus;
+            return this;
+        }
+
+        public void Play()
+        {
+            _backend.PlaySound(GetSound(), _bus, _pitch, _volume);
+        }
+
+        protected virtual Sound GetSound()
+        {
+            return _sound;
+        }
+
+        private readonly AudioBackend _backend;
+        private readonly Sound _sound;
+        private string _bus = "Master";
+        private float _pitch, _volume = 1.0f;
+    }
+}

TestGame/TestGame.cs

@@ -49,7 +49,10 @@ public class TestGame : Game
 
             if (_inputHandler.IsActionJustPressed("play"))
             {
-                _audioBackend.PlaySoundVariation(_testSound, "Master", 0.1f);
+                var instance = _audioBackend.CreateInstance(_testSound)
+                    .PitchVariation(min: 0.9f, max: 1.2f)
+                    .VolumeVariation(min: 0.90f, max: 1.0f);
+                instance.Play();
             }
 
             _audioBackend.Update();