(WASD)Collision testing system that doesn't use keyboard input to determine direction of movement and therefore only calculate collision in that direction; instead of accounting for those, it only calculates the position of the player with relation to the boundaries of the object and the intersection of the vertices. The freedom of this engine also allows it to be rendered by pen, which is shown in this example, and it also implements a gameloop.
100% me, @Golden-Pixeleon