Ok, imagine that you have a large (say, 2000 by 2000) picture of a level.
You are going to use that picture as a level in a platform game.....easy so far.....BUT because of the huge amounts of walls/floors/ceilings etc that the picture has, you DONT want to spend the next week putting hidden background objects and/or the physics ground objects all over the map so your player character can run on them.
So... I was thinking is there any other way to do this with for example a PNG picture?
My thinking was that IF there was a way to make your players character ignore the transparent part of the picture (IE:...All the open spaces), then in theory what should happen is that your character will only stop/run on the painted parts.
I was wondering if that's doable? Or if anyone else has another way to get round all the tiresome placing of background/physics objects to make platforms?