This is a quick, dirty hack I wrote up using JS. It's based on Langton's ant, but adds a lot of new, fun stuff. You can do all sorts of interesting things with it -- a command reference is included. The "docs" were written in 5 minutes, so feel free to ask for clarification. Enjoy!
I've been thinking about color stuff, but just can't come up with how to really do it. However, I think sub-45-degree turning is gonna happen soon. Probably 15-degree to start, and see what can happen there. 45 degree turns do provide some fun stuff, though...
Edit: Just made a small change that will make things look prettier, though. If you have the command string XYZW, the command string XYZWXYZW is 100% equivalent, except for the shading (due to the cell values looping around). So when you put in a command string, it's automagickly extended to > 64 bytes now, guaranteeing smooth shading.
Perhaps a given automaton could be told to open a bucket of paint and then have that paint expend itself over time (drop in color intensity, increase in opacity, or whatever).
Oh nice, I quite like that. I'll try it out. Thanks!
Btw, just implemented yet another new feature: the '@' command is an ant bomb. If there are multiple ants in play, @ kills the one that triggers it. That lets you fork without completely annihilating your system.
Alright, both of these are in. $ increments the color, ^ decrements it. In addition, = now causes the child ant to have its color incremented, and < causes the child color to be decremented. Technicolor craziness.
Edit: Really don't like the color stuff. I've left in $ and ^, but I've turned it off for forks. It just looks like random nonsense, sadly.
One of my favorites: http://demoseen.com/langton.html#+..............................