cellular automata

a cellular automata fill sneaked into the tool last week.

It is now 'improved' and has two modes which can be explored using N and M.

It's just sketched out of the example cellular automata script that p5 provides. To fit in with this drawing tool, more elements are randomised or tied to other settings.

In the current iteration it should generate a random rule-set each time you run the fill. The starting generation will be filled semi-randomly.

Have fun.