clean up basic interfaces

1 files changed, 3 insertions, 1 deletions

diff --git a/core/src/ch/asynk/gdx/boardgame/Positionable.java b/core/src/ch/asynk/gdx/boardgame/Positionable.java
index d16f5ce..30128ac 100644
--- a/core/src/ch/asynk/gdx/boardgame/Positionable.java
+++ b/core/src/ch/asynk/gdx/boardgame/Positionable.java
@@ -6,5 +6,7 @@ public interface Positionable
     public float getY();
     public float getWidth();
     public float getHeight();
-    public void setPosition(float x, float y, float w, float h);
+    public void centerOn(float cx, float cy);
+    public void translate(float dx, float dy);
+    public void setPosition(float x, float y);
 }