1 files changed, 6 insertions, 0 deletions
diff --git a/src/sprite.h b/src/sprite.h
index 9c6401dcb..20f38bef0 100644
--- a/src/sprite.h
+++ b/src/sprite.h
@@ -104,6 +104,12 @@ class Sprite
          */
         virtual unsigned int getFrameCount() const = 0;
 
+        virtual void *getHash()
+        { return 0; }
+
+        virtual void *getHash2()
+        { return this; }
+
     protected:
         float mAlpha;                  /**< The alpha opacity used to draw */
 };