add engine/gfx/animations/BounceAnimation

1 files changed, 66 insertions, 0 deletions

diff --git a/core/src/ch/asynk/rustanddust/engine/gfx/animations/BounceAnimation.java b/core/src/ch/asynk/rustanddust/engine/gfx/animations/BounceAnimation.java
new file mode 100644
index 0000000..d4f57a8
--- /dev/null
+++ b/core/src/ch/asynk/rustanddust/engine/gfx/animations/BounceAnimation.java
@@ -0,0 +1,66 @@
+package ch.asynk.rustanddust.engine.gfx.animations;
+
+import java.lang.Math;
+
+import com.badlogic.gdx.utils.Pool;
+import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+
+import ch.asynk.rustanddust.engine.gfx.Moveable;
+
+public class BounceAnimation extends TimedAnimation
+{
+    public static float bounceFactor = 0.3f;
+
+    private Moveable moveable;
+
+    private static final Pool<BounceAnimation> bounceAnimationPool = new Pool<BounceAnimation>() {
+        @Override
+        protected BounceAnimation newObject() {
+            return new BounceAnimation();
+        }
+    };
+
+    public static BounceAnimation get(Moveable moveable, float duration)
+    {
+        BounceAnimation a = bounceAnimationPool.obtain();
+
+        a.moveable = moveable;
+        a.duration = duration;
+
+        return a;
+    }
+
+    @Override
+    public void dispose()
+    {
+        bounceAnimationPool.free(this);
+    }
+
+    @Override
+    protected void begin()
+    {
+    }
+
+    @Override
+    protected void end()
+    {
+        moveable.setScale(1f);
+    }
+
+    @Override
+    protected void update(float percent)
+    {
+        moveable.setScale(1 + bounceFactor * (float) Math.sin(percent * Math.PI));
+    }
+
+    @Override
+    public void draw(Batch batch)
+    {
+    }
+
+    @Override
+    public void drawDebug(ShapeRenderer debugShapes)
+    {
+    }
+}