command rects x y w h r g b { pen r g b repeat w1 0 100 { pen r g b line (x-w/2) (y-h/2) (x+w/2) (y-h/2) line (x+w/2) (y-h/2) (x+w/2) (y+h/2) line (x+w/2) (y+h/2) (x-w/2) (y+h/2) line (x-w/2) (y+h/2) (x-w/2) (y-h/2)
line(y-h/2)(x-w/2)(y-h/2)(x+y/2) line (y-h/2)(x+w/2)(y+h/2)(x+w/2) line (y+h/2)(x+w/2)(y+h/2)(x-w/2) line (y+h/2)(x-w/2)(y-h/2)(x-w/2) line (x-w/2) (y+h/2) (x-w/2) (y-h/2)