Buffer layered sprites under SDL

This improves framerate and allows transparent overlay for complex
sprites. Two copies of the buffer are kept, one at full opacity,
one with variable opactiy, to reduce calls to setAlpha.

Reviewed-by: Bertram

1 files changed, 5 insertions, 5 deletions

diff --git a/src/animatedsprite.h b/src/animatedsprite.h
index 833a07a3..aae116be 100644
--- a/src/animatedsprite.h
+++ b/src/animatedsprite.h
@@ -54,11 +54,11 @@ class AnimatedSprite : public Sprite
 
         virtual ~AnimatedSprite();
 
-        void reset();
+        bool reset();
 
-        void play(SpriteAction action);
+        bool play(SpriteAction action);
 
-        void update(int time);
+        bool update(int time);
 
         bool draw(Graphics* graphics, int posX, int posY) const;
 
@@ -66,9 +66,9 @@ class AnimatedSprite : public Sprite
 
         int getHeight() const;
 
-        Image* getImage() const;
+        const Image* getImage() const;
 
-        void setDirection(SpriteDirection direction);
+        bool setDirection(SpriteDirection direction);
 
         int getNumberOfLayers()
         { return 1; }