Quote Originally Posted by Traveler
Have a look at the tutorial section of my heavily neglected website. There's two tuts dealing with platform games. I believe they should answer most, if not all, of your questions.
My game is not tile-based. It is made out of points of triangles. I could make a color map out of the triangle point information (like you do, for your tiles), but now I think just calculating it before it happens is maybe the best thing to do.

But thanks anyway for your tutorial.

Do you or anyone forsee any problems I might run into when calculating it? Should I use another method? The color map you use in your tutorial for example.