Allow builders deconstruct to roads with a 50% chance to reclaim stone

[Kromster80]

This will help when player runs out of stone

[Kromster80]

I'm thinking deconstructing enemy/allies roads could be exploited - so no. Mined what? Making AI to use this is very complicated (AI should not fall into that trap in the first place).

[Kistrel]

Well, if workers were changed to be unable to explore the map then it could be nearly impossible to use against enemies during peacetime, and after peacetime it could be an interesting offensive strategy.

As for allies, it could simply be disabled when the player is in game and return no stone if the player was defeated or is disconnected.

Anyway, I'd like to mention that this would also be useful when running out of Coal: the drained terrain is fertile, and removing the roads to the depleted mines would make it easier to make farmlands out of these zones.