I'm learning to code, I would love to learn how to do something like ...
Is there a chance to see the source code?
Well..like I said I'm just starting out, but this goes a long way. Thanks!
So quick question: what is Processing?
It's a programming environment with an unfortunate name, hehe. It makes googling a pain. It's very easy to draw stuff, you can find it here: https://processing.org/ The dungeon generation algorithm doesn't really require it though, it should possible to follow in whatever language you're using.