So I want to make my own (2D) physics engine. I want to have a block hit a stationary wall. It will use a system of 4 points to detect collisions (The wall will always be larger than the block.) So I want each of the 4 points to be moving in space, the 4 points are the corners of block. Say the 4 points are moving northward, and the block is not rotating. Any ideas? Please Register or Log in to view the hidden image!