.wrap()

If the stamp's, text object's, or circle's center point is off the screen, "wrap" it around so it's back on the screen. Useful for games like asteroids and pacman.

This program endlessly moves the rocket, the word 'rocket', and the circle upward. When they reach the top of the screen, they wrap around to the bottom.

c = circle(384,550,200,'light green') rocket = stamp('rocket') label = text('rocket',CENTER,384,700) function loop() {   rocket.move(UP,20)   rocket.wrap()   label.move(UP,20)   label.wrap()   c.move(UP,20)   c.wrap() }