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IDProjectCategoryView StatusDate SubmittedLast Update
0001227Dwarf FortressAdventure Mode -- Sitespublic2010-04-16 03:452012-03-04 08:03
Assigned ToFootkerchief 
PrioritynormalSeverityminorReproducibilityhave not tried
PlatformWindowsOSWindows 2000OS Version5.00.2195 SP4
Product Version0.31.03 
Target VersionFixed in Version 
Summary0001227: Some world gen mountains halls are inaccessible, possibly caused by erosion
DescriptionSome mountain halls cannot be entered in adventure mode, because the top level (where all down stairs are located) is located above the ground level, so from adventurer's point of view it looks like a rectangular wall without any means to get to the top.
Steps To Reproduce1.Generate world with following parameters:
  Seed: 3894293870
  History Seed: 2262357010
  Name Seed: 3735191706
  Creature Seed: 2116295528
2. Visit some generated mountain halls as an adventurer.
Additional InformationSeems to be happening if there's a lot of level difference in the ground where the mountain hall is located, though not every time
Tagsadventure mode, Dwarf, worldgen
Attached Files

- Relationships
related to 0000032resolvedToady One World gen mountain halls / dwarf pits don't branch out from their "stairwell" 

-  Notes
Footkerchief (manager)
2010-04-16 08:51
edited on: 2010-04-16 08:51

It would be helpful if you could name a particular site in that world that is known to demonstrate this problem. Otherwise, Toady will have to waste time guessing.

Yaant (reporter)
2010-04-17 15:44

Hm, I've tried to recreate that world on my home WinXP machine to check site names, but got quite different world using same seeds (originally it was created on work Win2000 machine). Though it could be some mistake on my part, would have to recheck seeds when I'll get to work on Monday.
Meanwhile I'll try to reproduce the problem on some smaller worlds, if I'll be successful, then would post seeds and site names here.
Yaant (reporter)
2010-04-19 08:13

Oops, it turned out that I've tweaked some default worldgen options and forgot about it, so it explains getting different worlds. :)
Here's the full world_gen_param.txt then:

Created in DF v0.31.03.

Problematic site is Atisalil, "Stakeglee", a mountain fortress

Anyway, I got an idea what can be possibly causing the site inaccessibility: erosion. During my experiments with small worlds I've noticed that quite often mountain hall could be accessed only at one single land square (usually at corner), all squares around the mountain halls being somewhat lower. So if enough years passes after construction of mountain halls, erosion could lower the ground there, rendering the site inaccessible.
It's just a guess, of course, but at least it would explain, why I wasn't able to reproduce the problem on small worlds -- by default generation stops too early for erosion to do it's job.

So it could be important to wait all 1050 years of worldgen to reproduce the problem.
Footkerchief (manager)
2010-04-19 09:47

Cool, thanks for the thorough followup!
Footkerchief (manager)
2011-03-01 14:05

Mountain halls don't exist at all anymore, and will probably be drastically different when they come back, so I'm marking this report as suspended.

- Issue History
Date Modified Username Field Change
2010-04-16 03:45 Yaant New Issue
2010-04-16 08:51 Footkerchief Note Added: 0003851
2010-04-16 08:51 Footkerchief Note Edited: 0003851 View Revisions
2010-04-16 08:51 Footkerchief Note Edited: 0003851 View Revisions
2010-04-16 08:52 Footkerchief Issue Monitored: Footkerchief
2010-04-16 08:52 Footkerchief Relationship added related to 0000688
2010-04-16 08:57 Kennel Tag Attached: adventure mode
2010-04-16 08:57 Kennel Tag Attached: Dwarf
2010-04-16 08:57 Kennel Tag Attached: worldgen
2010-04-17 15:44 Yaant Note Added: 0004002
2010-04-19 08:13 Yaant Note Added: 0004231
2010-04-19 09:47 Footkerchief Note Added: 0004241
2010-04-21 12:14 Footkerchief Relationship added related to 0000032
2010-04-21 12:14 Footkerchief Relationship deleted related to 0000688
2010-04-26 17:42 Footkerchief Summary Some world gen mountains halls are inaccessible => Some world gen mountains halls are inaccessible, possibly caused by erosion
2010-12-10 13:16 Footkerchief Tag Attached: Fixed in 0.31.19?
2011-03-01 14:05 Footkerchief Note Added: 0015640
2011-03-01 14:05 Footkerchief Status new => resolved
2011-03-01 14:05 Footkerchief Resolution open => suspended
2011-03-01 14:05 Footkerchief Assigned To => Footkerchief
2012-03-04 08:03 Dwarfu Tag Detached: Fixed in 0.31.19?

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