/** changes the display frame based on an animation and an index. */
public void setDisplayFrame(String animationName, int frameIndex) {
if (animations_ == null) initAnimationDictionary();
CCAnimation anim = animations_.get(animationName);
CCSpriteFrame frame = (CCSpriteFrame) anim.frames().get(frameIndex);
setDisplayFrame(frame);
}
/** adds an Animation to the Sprite. */
public void addAnimation(CCAnimation anim) {
// lazy alloc
if (animations_ == null) initAnimationDictionary();
animations_.put(anim.name(), anim);
}