update method
Implementation
@override
void update(double deltaTime, BaseObject parent) {
var frame = _animationClip.getCurrentFrame();
_animationClip.update(deltaTime, parent);
if (frame != _animationClip.getCurrentFrame()) {
textureRegion = _animationClip.getTextureRegion();
spriteDirty = true;
}
super.update(deltaTime, parent);
}