# Glider gun
define dot {circle filled 1}
boxwid=boxht
circlerad = 0.4 * boxht
B1: box
B2: box
B3: box
move to B1.s; down
B4: box
move to B4.e; right
B5: box
B6: box
move to B4.s; down
B7: box
move to B7.e; right
B8: box
B9: box
dot at B2
dot at B6
dot at B7
dot at B8
dot at B9