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IDProjectCategoryView StatusDate SubmittedLast Update
0008698Dwarf FortressDwarf Mode -- Moodspublic2015-01-04 07:552022-12-07 16:17
Assigned ToFootkerchief 
PrioritynormalSeverityminorReproducibilityhave not tried
PlatformOSWindows 7 64 bitOS Version
Product Version0.40.23 
Target VersionFixed in Version 
Summary0008698: Dwarf entering a strange mood when isolated (e.g. on a stepladder) causes severe lag
DescriptionAs soon as a carpenter entered strange mood, my framerate dropped from 80~90 to 12~13. He was standing on a stepladder and gathering fruits when he got moody and didn't move for 6 in-game days. After that he suddenly claimed a workshop and the same moment the framerate became normal.

Additional InformationSaves: [^] (0.40.23) [^] (0.40.24, from 0008734)
TagsNo tags attached.
Attached Files

- Relationships
related to 0007284resolvedToady One Lag when dwarves stuck in a tree get a strange mood 
related to 0003869assignedFootkerchief Drop in FPS when moody dwarf can't path to workshop 
has duplicate 0008734resolvedlethosor Strange mood blocked dwarf makes FPS drops significantly. 
has duplicate 0008865resolvedlethosor Entering a strange mood while on a stepladder causes pathfinding issue and harsh FPS drop 
has duplicate 0008759resolvedlethosor Herbalist gets mood while picking tree fruit, forgets he has a stepladder 
has duplicate 0008957resolvedlethosor Dwarf in Fey Mood cannot path to workshop if standing on a stepladder 
has duplicate 0011176resolvedLoci Fey mood dwarf in tree causes lag then floats after tree cut down 
has duplicate 0011633resolvedKnight Otu Plant gatherer has mood while picking fruit on stepladder, unable to get down, destroys FPS 
related to 0008537assignedFootkerchief Surface Tree Growths Underground Hang Plant Gathering 
related to 0010538assignedDetros Military with a raid mission stuck on tree destroy fps 

-  Notes
Detros (manager)
2015-01-04 08:38

Can you post a zipped save of your region folder to [^] please?
Footkerchief (manager)
2015-01-04 09:08

Please upload a save that reproduces the problem to [^] and post the link here.
maqertas (reporter)
2015-01-04 10:01

Saved while the lag was still there. [^]
lethosor (manager)
2015-03-22 12:26

From 0008734, this seems to apply if a dwarf is unable to access the fortress for other reasons as well.
NW_Kohaku (reporter)
2015-06-07 19:27

For what it's worth, I've had this happen for a non-mooding miner who decided to go on break after channeling and digging away the supporting wall (such that climbing up would involve very complicated maneuvers) but not completing the digging orders that would have brought him back into the connectivity to the rest of the fortress.

Also, when ordering repeated vertical channeling, dwarves seem to prefer to climb out, rather than just keeping on channeling until they hit bottom. Lag spikes occur *PER TILE THEY MOVE*, implying some sort of pathfind on a per-tile basis, which is obviously quite inefficient.

(In general, this seems less "bug" and more "feature in severe need of optimization", as this appears to be the pathfinding working as intended in a kludge movement mode that lacks a proper connectivity map.)
Robsoie (reporter)
2015-07-01 08:51
edited on: 2015-07-01 08:52

Got recently the same problem in 40.24 : [^]
A dwarf climbed for no reason on top of a wall , and as i observed often dwarves that climb on top of something (walls/trees) seem to have no idea on how to climb back down to the ground, that dwarves was taken suddenly by a "fey mood" and the game crawled to unplayable level.

Only managed to save my fort thanks to dfhack use of the teleport function, as once i teleported that buggy dwarf to the ground, he was able to pathfind correctly and the framerate went back to playable.

It's not a new bug though, i had a similar problem in one of the early df2014 release ( a 40.0x) happening to a non-mood dwarf that, in a cavern for some reason jumped down from a bridge on to a giant mushroom top.
Once he was on top of it , there was no way for him to get back to the bridge (it was 2 Z level over his head) and the game went immediately to unplayable level so i couldn't even order the build of a stair to give a path to that dwarf.
And i without DFHack at the time, the fort was then completely lost due to that unplayable lag.

Shurikane (reporter)
2015-12-06 16:31

Same problem here: I had sealed away a vampire. The moment he got into a strange mood, the game instantly dropped to 1 FPS.

I let him out of his vault, and instantly everything returned to normal.
Jiri Petru (reporter)
2015-12-07 04:44

Might be related to issue 1340: [^]
Killzemallgod (reporter)
2015-12-18 01:43
edited on: 2015-12-18 01:47

I have been getting pretty FPS drops just out of nowhere I think it could be pathfinding for singing and what not. Might be the big songs or dances that needs more people for it and it messes up other people coming into the tavern. might be related or at least caused more often by 0009252 [^]

Loci (manager)
2019-11-13 21:54

v0.44.12: apepers posted a save in 0011176: [^]
bugsubmitter20001 (reporter)
2020-04-30 13:56

This is still happening in 0.47.04

I've got a dwarf/werebeast citizen that I've isolated in a walled off area of my fort and just got the strange mood message. FPS dropped from 100 to 17
the_penguins (reporter)
2021-02-20 08:32

Just saw this in 0.47.05

Dwarf became possessed while picking fruit. He was standing in a tree directly above the stepladder but couldn't path to the workshops. An other gatherer eventually took his ladder and he was still stuck, so we cut down the tree and he immediately ran to the workshops.
rickalbert (reporter)
2022-12-07 16:17

This problem is still around in V50.01 on Steam.

Here's a link to my save file: [^]
And here is a video of the bug: [^]

Hope this helps.

- Issue History
Date Modified Username Field Change
2015-01-04 07:55 maqertas New Issue
2015-01-04 08:38 Detros Note Added: 0031690
2015-01-04 09:07 Footkerchief Relationship added related to 0007284
2015-01-04 09:08 Footkerchief Note Added: 0031691
2015-01-04 09:08 Footkerchief Assigned To => Footkerchief
2015-01-04 09:08 Footkerchief Status new => needs feedback
2015-01-04 10:01 maqertas Note Added: 0031692
2015-01-04 10:01 maqertas Status needs feedback => assigned
2015-01-12 14:25 lethosor Relationship added has duplicate 0008734
2015-01-12 15:33 Footkerchief Status assigned => confirmed
2015-03-22 12:24 lethosor Relationship added has duplicate 0008865
2015-03-22 12:24 lethosor Summary Strange mood causing severe lag => Dwarf entering a strange mood on a stepladder causes severe lag
2015-03-22 12:26 lethosor Summary Dwarf entering a strange mood on a stepladder causes severe lag => Dwarf entering a strange mood when isolated (e.g. on a stepladder) causes severe lag
2015-03-22 12:26 lethosor Note Added: 0032395
2015-03-22 12:27 lethosor Additional Information Updated View Revisions
2015-03-22 12:28 lethosor Relationship added has duplicate 0008759
2015-03-22 12:28 lethosor Issue Monitored: BenLubar
2015-05-13 13:05 lethosor Relationship added has duplicate 0008957
2015-05-24 11:25 lethosor Sticky Issue No => Yes
2015-06-07 19:27 NW_Kohaku Note Added: 0032765
2015-06-17 16:53 lethosor Relationship added related to 0008537
2015-07-01 08:51 Robsoie Note Added: 0032828
2015-07-01 08:52 Robsoie Note Edited: 0032828 View Revisions
2015-12-06 16:31 Shurikane Note Added: 0033530
2015-12-07 04:44 Jiri Petru Note Added: 0033568
2015-12-18 01:43 Killzemallgod Note Added: 0034010
2015-12-18 01:45 Killzemallgod Note Edited: 0034010 View Revisions
2015-12-18 01:47 Killzemallgod Note Edited: 0034010 View Revisions
2018-01-21 17:23 Detros Relationship added related to 0010538
2018-02-12 13:39 Loci Relationship added related to 0003869
2019-11-13 21:52 Loci Relationship added has duplicate 0011176
2019-11-13 21:54 Loci Note Added: 0039583
2020-04-30 13:56 bugsubmitter20001 Note Added: 0040520
2020-10-10 04:08 Knight Otu Relationship added has duplicate 0011633
2021-02-20 08:32 the_penguins Note Added: 0040931
2022-12-07 16:17 rickalbert Note Added: 0041353

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