/** {@link #addAnimation(int, Animation, boolean, float)} */
public TrackEntry addAnimation(int trackIndex, String animationName, boolean loop, float delay) {
Animation animation = data.getSkeletonData().findAnimation(animationName);
if (animation == null)
throw new IllegalArgumentException("Animation not found: " + animationName);
return addAnimation(trackIndex, animation, loop, delay);
}
