"Takes the constrained COORD and wraps it around for the movement.
This makes an out-of-range x or y coordinate and wraps it around the
frame, giving a coordinate (hopefully) in the window on the other edge
of the frame. WINDOW is the window that movement is relative to (nil
"Takes the constrained COORD and wraps it around for the movement.
This makes an out-of-range x or y coordinate and wraps it around the
frame, giving a coordinate (hopefully) in the window on the other edge
of the frame. WINDOW is the window that movement is relative to (nil