onekey allows young programmers to learn motions by pressing a single key. Press: SPACE to clear. F or UP to go Forwards. B or DOWN to go Back. R or RIGHT to go right. L or LEFT to go left. U for pen up. D for pen down. A square is FRRR FRRR FRRR FRRR and a triangle FRR FRR FRR. Try FRRRRR many times for a star. This is an implementation of one key logo.
