Jigsaw fallback pool

[astrsh]

With jigsaw connectors placing things, sometimes there are circumstances where the next piece can't be generated due to collision with other pieces, and as such you end up with connectors without pieces, leading to structures abruptly stopping. As a remedy, you could include a piece in the pool that is small enough such that the piece won't collide with other pieces however this is not ideal.

I propose that there be an option in connectors called a fallback pool - basically what this would do is place a piece from a pool in the case that no other piece can be placed successfully, regardless of if any piece from the fallback pool collides with anything or not. I think it would be pretty trivial to implement and would be a nice QOL addition to the jigsaw system, that would prevent these abrupt stops.

[svdgoor]

+1