Urban Terrain Generating Project
"One of the things that has impressed me in the past couple of years is Jared Tarbell's Substrate algorithm. I love the fact that his algorithm created city-like structures and the concept is simple. It's marvelous!
I've peeked at his source code and gave up trying to figure out what exactly the code is doing. I never try to copy someone's code but I took his concept and wrote my own version of his algorithm. Of course, I never tried implementing his SandPainter algorithm. I mean...have you seen the code? I have no idea what it does. It's that awesome."