I'm glad you're enjoying it! Sadly the fireproofing is because the pathfinding algorithm being used here was written for zombies, and is therefore dumb about things like going around fire. Rewriting the pathfinding in lua would make the game run very slowly, so the only solution is to manually detect that they're about to walk into a fire and somehow bouncing them around it. I'll add it to my TODO list, but it's a lot of work.

ok. I see. Take your time on this. Don't burn yourself out, and certainly don't overwork yourself.
If it's too much work, it's fine. I'm sure I, as well as everyone else can deal with little things like fire.
Keep up the great work, ok?