What would be cool in game, is if particles could only come to rest if they were attached to a "Stagnent object" so a particle wont stop unless its attached to a bunker, or something on the ground, and detects when particles are not attached to the ground, to stop things from floating when you cut them off from the roof. There would have to be something to check for caves though, and not make those fall.

What do you think about it?

Sounds like IsScrap = 1, which didn't work out so great.

Aaahhh, now I get what you mean. I've always thought on that, but I mentally rejected the idea because, for example, maps which have "spacecrafts" or "planes" or "ships" wouldn't work, or when digging a tunnel it might collapse, or when destroying some bunker wall it could mess up a lot.

Still, it's a thought that always haunts me.