add SoundAnimation

1 files changed, 81 insertions, 0 deletions

diff --git a/core/src/ch/asynk/tankontank/engine/gfx/animations/SoundAnimation.java b/core/src/ch/asynk/tankontank/engine/gfx/animations/SoundAnimation.java
new file mode 100644
index 0000000..aaa7787
--- /dev/null
+++ b/core/src/ch/asynk/tankontank/engine/gfx/animations/SoundAnimation.java
@@ -0,0 +1,81 @@
+package ch.asynk.tankontank.engine.gfx.animations;
+
+import com.badlogic.gdx.utils.Pool;
+import com.badlogic.gdx.audio.Sound;
+import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+
+public class SoundAnimation extends TimedAnimation
+{
+    public enum Action
+    {
+        FADE_IN,
+        FADE_OUT
+    };
+
+    private Sound sound;
+    private long soundId;
+    private Action action;
+
+    private static final Pool<SoundAnimation> soundAnimationPool = new Pool<SoundAnimation>() {
+        @Override
+        protected SoundAnimation newObject() {
+            return new SoundAnimation();
+        }
+    };
+
+    public static SoundAnimation get(Action action, Sound sound, long soundId, float duration)
+    {
+        SoundAnimation a = soundAnimationPool.obtain();
+
+        a.action = action;
+        a.sound = sound;
+        a.soundId = soundId;
+        a.duration = duration;
+
+        return a;
+    }
+
+    @Override
+    public void dispose()
+    {
+        soundAnimationPool.free(this);
+    }
+
+    @Override
+    protected void begin()
+    {
+    }
+
+    @Override
+    protected void end()
+    {
+        dispose();
+    }
+
+    @Override
+    protected void update(float percent)
+    {
+        float v;
+        switch(action) {
+            case FADE_IN:
+                v = ( 1.0f * percent);
+                sound.setVolume(soundId, v);
+                break;
+            case FADE_OUT:
+                v = (1.0f - ( 1.0f * percent));
+                sound.setVolume(soundId, v);
+                break;
+        }
+    }
+
+    @Override
+    public void draw(Batch batch)
+    {
+    }
+
+    @Override
+    public void drawDebug(ShapeRenderer debugShapes)
+    {
+    }
+}