basic testing environment for collision processor
added start of new collision detection framework
detecting vertex collisions
slding for edge collisions and computing tangent for vertex collisions
vertex collisions with slide
sliding off the edge of edges
added tolerances to some collision detection comparisons
processing the first slide only
working edge collisions
working vertex collisions except a few corner cases
detector segments have proper handling of paths that end or start on the segment
removed depricated collision detection code
updating collision detector every time the visible walls changes