I would like to create the effect of a door opening by having it (a sprite) slide and gradually get covered up by the sprite that is under it. is there a way to select an area of a sprite and give it a different z index than the rest of the sprite?
You might be able to use two Sprite nodes, each with different TextureRegion properties. Then one Sprite could have a different Z index than the other. I'm not positive it would work, but that is what I would try looking into.