archon256 wrote:Would it be possible for different sections of the same level to have different backgrounds? Say, after passing through a red portal so you don't have to worry about transitions between backgrounds?
That could be a neat effect in some ubers, having to go teleport to seemingly different zones to complete them.
Not really, as this code really just is an illusion. It draws an image before tiles and units are drawn. Although it would be possible to make it change somehow, based on the location you are at in a level, but I'm not sure how well it would look.