https://www.polygon.com/2018/12/26/18156304/roomba-doom-levels-doomba   Game developer and designer Rich Whitehouse gave the world an unusual present this Christmas Eve. It’s called Doomba, and it uses the popular Roomba vacuuming robots to create levels for Doom, the classic first-person shooter. Whitehouse is a 20-year veteran of the game industry, with credits on titles such as the original Prey and Star Wars Jedi Knight 2: Jedi Outcast. Along the way, he also built a tool call