One Unit, home and resource. Unit moves rrandomly and interacts with home, and perhaps resource, but is not limited to the board
woo back up and working after some rejigging. The Unit now takes into account it's surroundings, to a degree... needs a bunch of testing, and the main grid needs some thought, and then creating. Do it right first time, I don't want to have to refactor this much stuff again please future me\!