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Advanced Terraforming

Nice mod.
The cost keeps it balanced.
It would be nice if it could add water as well so that I could dig moats around my cities.

I seem to recall issues with distinguishing between surface and underground usage. I think it was safer if no climate alterations applied underground.

any chance you could make a cleanse the land spell for underground?

Research Advanced Terraforming.

How do you unlock raise/lower mountain? I've used them before, so I know they work correctly, but I started a new game and now they're not "there" with Plant Forest, Fertile Land, Etc.

It might be. Not really sure. Can't remember how I coded it.

Is it possible to make building mountains as instant as removing them? It's currently a rather slow process as you have to cast it, go back into the menu, cast it again, go back into the menu. etc.

I suspect its doable, but it might lose the within boundaries. Not sure as I haven't looked at it for a while.
The reason you can't target Forts is because it creates a temporary structure that only lasts 1 turn to make the change. So it can't be in the same hex as another structure.
Working around this would require a complete rewrite.

Terraforming Tweaks would give you access to the Wetlands Empire spell with Water Mastery. Its a bit more in depth than this mod, as this is a simpler version of Terraforming Tweaks to give everyone better Overlay manipulation. Terraforming Tweaks does Climate manipulation as well, but it much more Specialisation dependent.

Oh, hi. I was talking about the vanilla spell. It needs to be within boundaries and it can not be cast on top of forts. So, is your mod able to do that? I have been using the water master drench land spell for happy goblins in wetland forts and even small settlements. I was hopin' a mod could work around that vanilla terraform limitation to work for any race's preferred terrain.

? Which terraforming spells don't work under Forts?
If you mean the standard ones from the Terraforming Skill, I would have to entirely rewrite them to be instant, which then means you could use the offensively (I think).
Perhaps the Terraforming Tweaks spells would work better if you want happy Forts? (Its got more creep terraforming.)