Application for making line patterns using simple sequences.
p - pause simulation.
< / > - speed up / down.
c - duplicate current sequence.
enter - enter sequence.
l - make left turn.
r - make right turn.
j - make straight pass through line.
g - make copy of next command in sequence.
/ - start new sub-sequence.
00000r1 - start position x:00, y:00, first line direction: top-right(0), r1 - make one turn right.
01103r2l1 - start position x:01, y:10, first line direction: down(3), r2 - make two turns right , l1 make one turn left.