maybe not buildable
Merge branch 'master' of https://github.com/EndIsNear/Raytrace_SDLnet
buildable project
and some implementations
Merge branch 'master' of https://github.com/EndIsNear/Raytrace_SDLnet
Imroved methods.
Merge branch 'master' of https://github.com/EndIsNear/Raytrace_SDLnet