Punch

This update features the new punch block. It's a melee weapon that attacks anything  within 2 tiles of what it faces. I've spawned one next to your starting gun so you can try it out. The AI uses a threat map projected by your blocks. The punch block will be hard to use, because it projects an obvious threat - but unlike your guns it can't backfire, so it doesn't have a gap in front of it that's safe.

More blocks are on the way, but I also need to create dangerous space nebulas you can drive enemies into with your threat.

And fix the mysterious invisible blocks of death bug. No reliable way to reproduce yet - seems to spawn during the most hectic battles, which is like trying to count spaghetti from afar.