DundGen - Random D&D dungeon generator

DundGen is a very rough dungeon generator for games such as D&D, pathfinder, ect...

Created as coursework for high school, so dont expect it to be that snazzy. It makes the maze and room and that's pretty much it

https://repl.it/@LewisFrampton/AH-Project-Dundgen

Looking for any criticism folk have, bonus points for suggestions on how to make the generation more efficient!