to twirlTillTiny [ n ] square n wait 0.05 if n > 2 [ rt 2.5 twirlTillTiny n - 0.05 ] end to square [ sideLength ] repeat 4 [ fd sideLength rt 90 ] end to reset ca cro 1 ask turtles [ pd ] end to octetOfJs ca cro 8 ask-concurrent turtles [ fd 12 pd twirlTillTiny 7 ] end