this one is way buggier but sorta works. Make sure your background is still and you are the only thing moving in it. The square should goto the spot with the most motion. If it does not work and the square just glitches around, i don't really have a fix for that. just comment ways I can fix it and Ill try. But otherwise it should work most of the time, if it dont im srry go check out my ther motion capture project then.
