KillerofLawyers wrote:It's would also mean that your mine would become less productive as you move further from the source, which also isn't a bad thing either. I like Niltrias's idea. However, it might work better if resources were more scattered, with multiple spots of 100% in a general area.
I was sort of assuming that they would change. There could be places that max out at 50%, for example, and some sorts of minerals could be circular in area while others could have linear veins that drop in % as you move away from the vein.
As far as tunneling goes, that could be a problem depending on implementation, but would not be for now because:
Basements do not exist on subterranean maps, for now...build a basement above a cave and you will not get basement cave access
There is no way to build a mine entrance "up", so you could not tunnel under walls and come up inside them, unless they had a mine entrance inside said walls already.
I admit, tho, that there should probably be some way to address both of these points.