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[elfhater]

I've never thought to try damming a river to see if a new embark point downriver would be dry.

Anyone else ever done it?

[Yocas]

That's actually a good question.

[Pillow_Killer]

Nope.

[Untelligent]

Hmm... I remember someone reporting that he built a bridge between an island an the mainland, and after that new forts built on the island had access to civs, so terraforming in one fort affecting a seperate one wouldn't be out of the question.

Nope.

Just to make sure, have you actually tried this or heard of someone else who tried this, are are you just assuming?

[Grendus]

In 40d this did not work. I'm not sure about 2010 though.

[elfhater]

Well then it probably still doesn't.

The pieces necessary to do that sort of thing probably already exist in the form of the world-builder, but it'd have to partially regenerate the world after every abandon. I wasn't sure if it did that or not. Apparently it works for legends, but not for geography.

[UmbrageOfSnow]

Giving up that easily?

I was all set to try this.  That or try reproducing the island bridge.

[Pillow_Killer]

I know it doesnt. Still doesnt. Never did. Probably never will either. Water is spawned from the edge, it doesnt magically flows through the WHOLE GODDAMN WORLD.

[elfhater]

It doesn't have to flow through the world for a dam in a previous fort to drain the water. It just needs to be told not to generate that tile in the first place when you embark, because the world updated and said "no, after all, there's no water here".

[rodya_mirov]

How do you even dam the river?  If it's an infinite source of water, won't it just overrun whatever you've built to stop it?

[elfhater]

Well, at any rate, you could change the river's direction, or have it go underground, or whatever. The point is there are ways a fort could have a derivative impact on nearby geographic features off-map.

[Vattic]

Hmm... I remember someone reporting that he built a bridge between an island an the mainland, and after that new forts built on the island had access to civs, so terraforming in one fort affecting a seperate one wouldn't be out of the question.

Funnily enough the bridge was not required to allow access to the island. You can connect an inaccessible part of the map to the rest simply by embarking with a fort that overlaps both. I used this to allow civs access to sites on the other side of mountains before.

[Double A]

How do you even dam the river?  If it's an infinite source of water, won't it just overrun whatever you've built to stop it?

It doesn't go up z-levels unless those are below the original starting level or pumped. Damming usually involves freezing rivers, or artificial cave-ins.

[gtmattz]

How do you even dam the river?  If it's an infinite source of water, won't it just overrun whatever you've built to stop it?

It doesn't go up z-levels unless those are below the original starting level or pumped. Damming usually involves freezing rivers, or artificial cave-ins.

Or pumping, or magma.