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[Drakis]

ok, i gen'd and found a PERFECT spot that lists magma, sand, HFS, an undergound river that turns waterfall into a chasm pit, and a heavy forest in the lower corner.

i get the starting area made by the forest, find the river fine, stumble over a piece of admantine within the first year...     and then when i find the magma....    its not magma at all....   its a single layer of obsidian, nothing more, even though i got the message 'you have found a magma pit'


NUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU

[Untelligent]

Dig down further.

[Rotinaj]

Did you check underneath the obsidian? It commonly makes a cocoon around the magma itself.

[Drakis]

of course i tried that.    hence saying one single layer.    i was able to channel into the obsidian on the top, and found basalt underneath.

[Keizo]

Well technically the game didn't lie to you... and hey, you can't always get what you want. The obsidian is still useful, right?

I'm wondering if this is even a bug. Toady probably coded a range of sizes for magma pits, and apparently, "1 layer" is a possible size...

[eerr]

there can be other stone between the magma pipe and the obsidian beneath it

try digging down about 4-5 layers.

[Noble Digger]

Well technically the game didn't lie to you... and hey, you can't always get what you want. The obsidian is still useful, right?

I'm wondering if this is even a bug. Toady probably coded a range of sizes for magma pits, and apparently, "1 layer" is a possible size...

I don't buy the 'fuck the player' mentality in what is clearly a sandbox game. If it advertises magma at embark, it should have magma--period. You spend a lot of time planning out a fortress after spending a lot of time preparing to embark (world gen, searching for a site, arming your expedition, etc) so to find a 1x20 layer of obsidian instead of magma is...a cock tease.

Screenshots plx!

[Othob Rithol]

I just had the exact same thing happen on an otherwise ideal spot : 2 chasms, small cave river, 2 aquifers at the edges, sand, flux, wood, brook, lots of visible ores of many types, three pages of baddies at embark, HFS, and a single layer of round obsidian where the magma pool should have been.

Before coming here to gripe, I dled tweak and took a look with reveal: exactly one z level of obsidian.

I don't buy the "might be a feature" argument. But we'll see when Toady responds.

[Yanlin]

The magma cools into obsidian. The magma just cooled off into obsidian. That happens and is a valid feature.

[Othob Rithol]

I realize it has become fashionable on the boards to look about for anyone that you can "hey noob", but I am not exactly new to this game. I've made probably 40 fortresses just in the 3D era, and probably that many in 2D. I am fully aware that magma cools into obsidian, and that cooling can occur prior to embark (ie the obsidian caps on glacial magma pipes).

This is the first time I have ever encountered this particular phenomenon. Much like the other posters I think this may be a bug, and thus should be brought to Toady's attention.

If he says "Yeah, it's intended" then its a feature. I'll then post a thread in suggestions to amend either magma pool depth or site finder reporting.

So until we actually hear from him, let's keep the thread clean of non-constructive conjecture...m'kay?

edit: I regenerated the same world to tinker a bit. While poking around in the same spot, I noticed that there was not even a z-level of obsidian, there was just a layer of "obsidian cavern floor": the underlying rock was alunite. If obsidian had cooled, there would be mineable obsidian.

It is as if the game generated the very bottom of a magma pool (its lowest open level + floor) but did not fill it, make an obsidian shell, or extend it any higher. To use Keizo's terminology, it was a 0-level magma pool.

The nearby magma pipe is normal, as are the nearest 4 other magma pools.

The only oddity may be that it appears on one level that pool might straddle a biome boundary.

[Yanlin]

So you're saying...

"If you correct my mistake you must be a troll who's posting a non constructive reply in my thread."

Way to go.

We told you the answer. It's a feature. A realistic one at that.

[Derakon]

Yanlin, you're being needlessly antagonistic. Even if you think you're right, there's no cause to be a jerk about it.

And in fact, you're not right. Toady himself confirmed that this is a bug. So get off your high horse.

[Drakis]

pics?   you want pics?    done.

after i found out about this bug, i looked into getting tweak running with 40d, and it revealed that yes, the entire 'magma' pit was one level of obsidian.    nothing more.

heres a link to a zip with two images of the magma pit, the seed used, and the exact embark location.   ive tried re-gen'ing the world on a clean copy of DF40d and it still comes up, so anyone can reproduce this bug, and toady can find out whats causing it.

http://dffd.wimbli.com/file.php?id=548

[Draco18s]

This is a bug.  Last I checked, a magma pool was supposed to be 1+ layers of magma encased on all sides (top, bottom, and around) in obsidian.

[Othob Rithol]

So you're saying...

"If you correct my mistake you must be a troll who's posting a non constructive reply in my thread."

Way to go.

We told you the answer. It's a feature. A realistic one at that.

No, I am saying "If you go around posting in a Player->Toady communication talking about things you obviously don't know about, then you are a troll."

If this was the Gameplay Questions forum, I'd have no issue. but I came here to speak to the Man, not a child.

Glad to hear it is a bug, I guess I missed that thread in my search.