Manages a stack of scenes. Only the front-most scene receives game updates.
The scenes that are partially occluded by a transparent or transitioning scene, from back to front. These scenes are not updated, but they're still drawn.
The complete list of scenes managed by this director, from back to front.
Sets the ideal size of the scenes in this director. By default, the size is the full stage width and height. This size is used by some transitions, such as SlideTransition.