0006737: Flying animals (e.g. birds) stuck in mid air (prevents invasions?)

(0025178)
Footkerchief (manager)
2014-07-08 16:49

Please upload a save that demonstrates the problem to http://dffd.wimbli.com/ [^] and post the link here.

(0025200)
psioryx (reporter)
2014-07-08 18:30

The issue went away eventually. I can still provide the save file if it will help. It currently has another issue in progress: Necromancer of siege is not leaving edge of map.

(0025919)
Footkerchief (manager)
2014-07-11 20:21

Orkel posted a save at 0007093: http://dffd.wimbli.com/file.php?id=8887 [^]

(0025963)
4maskwolf (reporter)
2014-07-12 05:53

If we're talking about immobile creatures, a similar thing with creatures not moving is happening in a current fort with undead on the edge of the map.

(0026023)
eliotcougar (reporter)
2014-07-12 14:21

I'm not sure I should open an additional issue while there're so many flying relater issues that may have common cause...
Does anyone notice that in adventure mode almost all birds just sit on the ground and don't even try to fly away if you attack them?..

(0026027)
Rafal99 (reporter)
2014-07-12 14:55

In my fort I had a cluster of 9 Raven Men/Women sitting in midair about 10 z-levels above ground for 4 ingame months. During that time no other above-ground animals spawned on my map.
Eventually I got a quiver from dead goblins so I could send a marksdwarf to shoot them down. Once some of them got hit they all dispersed in horror and flew in all directions.

(0026312)
frodo0800 (reporter)
2014-07-14 06:38

The issue seems to be present on .03 too. And the same thing happened to me Rafal99, except I removed the flier tag from them so they could stop lagging everything.

(0026947)
exottoyuhr (reporter)
2014-07-19 08:21
edited on: 2014-07-19 08:42

I think this happens -- sporadically -- with all flying creatures. In Losing Is !!Magic!! for 40.03, I saw a pegasus get stuck in the air next to a constructed wall, blinking some sort of brown color. (I told him to dismantle the wall, then cancelled that order, and his pathing went back to normal and he got back to work.)

(0027093)
lethosor (manager)
2014-07-20 19:40

Reminder sent to: eliotcougar, frodo0800, psioryx, Rafal99

As mentioned in 0005421:0026952, this could be the same problem as 0006737. Can you check the tiles surrounding the stuck creatures with [k] to see if they are listed as "open space" or simply blank? (Preferably in the current version of DF, since 0.40.01-02 saves aren't compatible with the latest DF version.)

(0027585)
Rafal99 (reporter)
2014-07-26 05:14
edited on: 2014-07-26 05:14

Unfortunately I don't have any forts in 40.03+ atm, but I loaded my save with this bug in DF 40.02 and checked the tiles where the Raven Men are stuck and all of these tiles and all the surrouding tiles too show as "Open space".

But reading 0005421 it seems that open space refers there to any air tiles that are loaded, rather than to tiles being listed as "Open space" in the look menu.

(0027606)
Kirkegaard (reporter)
2014-07-26 08:09
edited on: 2014-07-26 08:10

@lethosor
I have a fort with 9 keas stuck in the air around the map. They are all in "open space". There is also 2 Hedgehog womans that have crawled up in a tree and are stuck now, they are not marked as in "open space"
Should I upload a save?
(version 0.40.3)

(0027607)
Dwarfu (manager)
2014-07-26 08:16

Reminder sent to: Kirkegaard

Yes, upload the save and post a link in the report.

(0027608)
Kirkegaard (reporter)
2014-07-26 08:34

Save: http://dffd.wimbli.com/file.php?id=9160 [^]

(0027845)
Talvieno (reporter)
2014-07-28 20:13

I have three stuck keas as well.

(0027985)
Ataman (reporter)
2014-07-30 15:33
edited on: 2014-08-05 03:36

This bug really needs fixing birds being stuck blocks sieges and any form of hostiles as well.

In short:
Stuck birds = No Invaders, No Megabeasts, No Wildlife and No Forgotten Beasts.

EDIT: (I might be wrong about beasts though).
Save for vanilla 40.06: http://dffd.wimbli.com/file.php?id=9292 [^]

(0028655)
tacomagic (reporter)
2014-08-09 11:30
edited on: 2014-08-09 11:47

I've got two Giant owls stuck on this map:

http://dffd.wimbli.com/file.php?id=9332 [^]

Of note, this bug seems to also negatively effect animal breeding. In the two years since the owls got stuck, I've had only one domestic animal birth. I've had a peahen sitting on a clutch of 7 eggs for the entire age of the fort and boar/sow combo that's barren. Even more interesting, my cats haven't bred either.

This may be related to 0007651

Could also be related to the undead problems. There's an undead elf left over from a siege that's been idling on the map since the owls got stuck.

(0028692)
musicmastermsh (reporter)
2014-08-09 19:23

Stuck barn owl, dwarves breeding like alpacas, alpacas breeding like dwarves. (they're unmarried to they ain't doing squat) Haven't had any invasions or goblins so far, just some monkeys.

http://dffd.wimbli.com/file.php?id=9335 [^]

(0028702)
Borschwanger (reporter)
2014-08-10 00:22

I have had 9 Giant Wrens for a year and a quarter and they are too high to be hunted. Also have some carp that gave birth, not sure if they are supposed to stick around either. I have had both a kobold ambush and a goblin siege. The ewe/ram pair and my dogs have given birth. My cat pair has not. Haven't allowed eggs to sit for hatching since I couldn't hunt any food so that is as yet unknown. Lots of dwarf births.

(0028877)
Loci (manager)
2014-08-12 09:23

After a certain amount of time on the map, animal groups path to the map edge to migrate out. It appears that the "migrate out" code does not correctly handle critters without a walkable path to an edge (from flying, climbing, or swimming). Preventing fliers from becoming airborne (such as roofing over the floor of the caverns) allows them to migrate off the map successfully.

Since this bug completely breaks one of the more interesting aspects of the game, I think it should qualify for more than "minor" severity.

(0028925)
thvaz (reporter)
2014-08-13 00:12

I got ravens stuck in the air, but I have had invasions.

(0028971)
Robsoie (reporter)
2014-08-13 12:23
edited on: 2014-08-13 12:24

I experimented with a fortress of mine in 40.08, as despite i had only 20 dwarves the game was running much slower than it should .
I noticed i had 6 "kea" and 6 "sparrow men" stuck in the air all around the map, not moving.

I decided to edit the saved game own raw and remove the [FLIER] tag from both creature_birds.txt and creature_birds_new.txt files

Then i loaded that save, the 6 keas and the 6 sparrow men (or simple sparrow, i'm not sure i remember them right) fell to the ground, the sparrow men were more lucky as they landed in a tree top, allowing most of them to survive, while the keas were less lucky and all died.

Following that the game wasn't slow anymore, and was running quite fast actually (and much more in par with how it usually run with only 20 dwarves)

(0028990)
tacomagic (reporter)
2014-08-13 13:58

Through a series of tests we proved that there is actually no link between stuck birds and breeding:
http://www.bay12forums.com/smf/index.php?topic=142171.msg5570374#msg5570374 [^]

Thus, there is no relationship between this bug and 0007651.

(0028994)
Footkerchief (manager)
2014-08-13 15:38

I agree that there's probably no relationship, but proving one link doesn't disprove another link.

(0031916)
Footkerchief (manager)
2015-01-12 15:52

Reopened and awaiting a save.

(0031918)
ptb_ptb (reporter)
2015-01-12 21:23

Storkmen stuck over a volcano. Follow the stairs. :)

http://dffd.wimbli.com/file.php?id=10435 [^]

(0034039)
Killzemallgod (reporter)
2015-12-18 19:56

Seems to also effect flying guests.
0009382 http://www.bay12games.com/dwarves/mantisbt/view.php?id=9382 [^]

And 0009385 appears to be a copy of it.
http://www.bay12games.com/dwarves/mantisbt/view.php?id=9385 [^]

(0039471)
LaularuKyrumo (reporter)
2019-08-04 13:33

I wonder if this has anything to do with how flying creatures can only pathfind to areas they would be able to access without flying? Since the creature gets stuck in the air, it has nowhere it can reach without flying, and therefore does not even attempt to go anywhere.

(0041376)
puloletroll (reporter)
2023-11-11 07:28

Hello, i have had a bunch of giant stork stuck on the edge of the map for several ingame years, didn't have any invasions or new creature spawning for those 5 years. The all purpose of this fort being beast hunting, i tryed another fort and had the same issue with 3 osprey man.
in both cases i immediatly started the run by burying my self under a bridge that would cut every access to my fort.
hope it helps

(0041377)
puloletroll (reporter)
2023-11-11 14:43

third time, and it occured to me that everytime this bug happened was in untamed wild biome (for me at least)

(0041380)
Thumbthrower1 (reporter)
2024-03-06 23:09

Same here. It happens purely on untamed wilds and on heavily forested maps in my case (I haven't had the same problem on untamed wild deserts or savanas)

Issue History
Date Modified	Username	Field	Change
2014-07-08 16:34	psioryx	New Issue
2014-07-08 16:49	Footkerchief	Note Added: 0025178
2014-07-08 16:49	Footkerchief	Assigned To	=> Footkerchief
2014-07-08 16:49	Footkerchief	Status	new => needs feedback
2014-07-08 18:30	psioryx	Note Added: 0025200
2014-07-08 18:30	psioryx	Status	needs feedback => assigned
2014-07-11 07:32	Footkerchief	Relationship added	has duplicate 0007028
2014-07-11 20:21	Footkerchief	Relationship added	has duplicate 0007093
2014-07-11 20:21	Footkerchief	Note Added: 0025919
2014-07-12 05:53	4maskwolf	Note Added: 0025963
2014-07-12 14:21	eliotcougar	Note Added: 0026023
2014-07-12 14:55	Rafal99	Note Added: 0026027
2014-07-12 19:37	Footkerchief	Relationship added	related to 0007170
2014-07-14 06:38	frodo0800	Note Added: 0026312
2014-07-19 08:21	exottoyuhr	Note Added: 0026947
2014-07-19 08:42	exottoyuhr	Note Edited: 0026947	View Revisions
2014-07-20 19:40	lethosor	Issue Monitored: eliotcougar
2014-07-20 19:40	lethosor	Issue Monitored: frodo0800
2014-07-20 19:40	lethosor	Issue Monitored: Rafal99
2014-07-20 19:40	lethosor	Note Added: 0027093
2014-07-20 20:24	lethosor	Assigned To	Footkerchief => lethosor
2014-07-21 04:35	lethosor	Relationship added	related to 0005421
2014-07-22 08:24	lethosor	Status	assigned => needs feedback
2014-07-26 05:14	Rafal99	Note Added: 0027585
2014-07-26 05:14	Rafal99	Note Edited: 0027585	View Revisions
2014-07-26 07:11	Footkerchief	Relationship added	has duplicate 0007644
2014-07-26 07:11	Footkerchief	Issue Monitored: Kirkegaard
2014-07-26 08:09	Kirkegaard	Note Added: 0027606
2014-07-26 08:10	Kirkegaard	Note Edited: 0027606	View Revisions
2014-07-26 08:16	Dwarfu	Note Added: 0027607
2014-07-26 08:34	Kirkegaard	Note Added: 0027608
2014-07-26 15:22	Footkerchief	Relationship added	related to 0006545
2014-07-28 20:13	Talvieno	Note Added: 0027845
2014-07-30 11:32	Footkerchief	Relationship added	has duplicate 0007742
2014-07-30 15:33	Ataman	Note Added: 0027985
2014-07-30 18:43	lethosor	Status	needs feedback => acknowledged
2014-07-30 18:44	lethosor	Note Added: 0027991
2014-07-30 18:44	lethosor	Note Deleted: 0027991
2014-07-30 18:45	lethosor	Relationship replaced	child of 0007170
2014-07-31 01:05	Kirkegaard	Note Added: 0028009
2014-07-31 01:54	Kirkegaard	Note Deleted: 0028009
2014-07-31 05:13	4maskwolf	Issue Monitored: 4maskwolf
2014-08-04 17:02	samanato	Issue Monitored: samanato
2014-08-04 20:02	thescribblery	Note Added: 0028336
2014-08-04 20:09	thescribblery	Note Edited: 0028336	View Revisions
2014-08-04 20:10	thescribblery	Note Edited: 0028336	View Revisions
2014-08-04 21:26	Dwarfu	Summary	Ravens stuck in mid air => Ravens stuck in mid air (prevents invasions?)
2014-08-04 23:29	thescribblery	Note Deleted: 0028336
2014-08-05 03:36	Ataman	Note Edited: 0027985	View Revisions
2014-08-09 11:30	tacomagic	Note Added: 0028655
2014-08-09 11:30	tacomagic	Note Edited: 0028655	View Revisions
2014-08-09 11:30	tacomagic	Note Edited: 0028655	View Revisions
2014-08-09 11:36	tacomagic	Note Edited: 0028655	View Revisions
2014-08-09 11:47	tacomagic	Note Edited: 0028655	View Revisions
2014-08-09 12:20	Footkerchief	Relationship added	related to 0007651
2014-08-09 12:20	Footkerchief	Status	acknowledged => confirmed
2014-08-09 12:25	Footkerchief	Relationship replaced	related to 0007170
2014-08-09 12:27	Footkerchief	Summary	Ravens stuck in mid air (prevents invasions?) => Flying animals stuck in mid air (prevents invasions?)
2014-08-09 13:59	Dwarfu	Relationship added	has duplicate 0007926
2014-08-09 19:23	musicmastermsh	Note Added: 0028692
2014-08-10 00:22	Borschwanger	Note Added: 0028702
2014-08-12 08:48	Footkerchief	Summary	Flying animals stuck in mid air (prevents invasions?) => Flying animals (e.g. birds) stuck in mid air (prevents invasions?)
2014-08-12 08:48	Footkerchief	Relationship added	has duplicate 0007973
2014-08-12 09:23	Loci	Note Added: 0028877
2014-08-13 00:12	thvaz	Note Added: 0028925
2014-08-13 12:23	Robsoie	Note Added: 0028971
2014-08-13 12:24	Robsoie	Note Edited: 0028971	View Revisions
2014-08-13 13:58	tacomagic	Note Added: 0028990
2014-08-13 15:38	Footkerchief	Note Added: 0028994
2014-08-16 17:57	Button	Issue Monitored: Button
2014-08-18 11:44	Footkerchief	Relationship added	has duplicate 0007840
2014-08-18 12:17	Toady One	Status	confirmed => resolved
2014-08-18 12:17	Toady One	Fixed in Version	=> Next Version
2014-08-18 12:17	Toady One	Resolution	open => fixed
2014-08-18 12:17	Toady One	Assigned To	lethosor => Toady One
2014-08-18 12:27	Kirkegaard	Issue End Monitor: Kirkegaard
2014-08-18 12:31	samanato	Issue End Monitor: samanato
2014-08-20 02:27	Rafal99	Issue End Monitor: Rafal99
2014-08-20 07:27	4maskwolf	Issue End Monitor: 4maskwolf
2014-08-26 09:36	Button	Issue End Monitor: Button
2015-01-12 15:51	Footkerchief	Status	resolved => needs feedback
2015-01-12 15:51	Footkerchief	Resolution	fixed => reopened
2015-01-12 15:52	Footkerchief	Note Added: 0031916
2015-01-12 21:23	ptb_ptb	Note Added: 0031918
2015-03-29 08:48	Footkerchief	Status	needs feedback => confirmed
2015-12-18 19:56	Killzemallgod	Note Added: 0034039
2016-08-07 07:10	Loci	Relationship added	related to 0009362
2017-06-08 19:16	Huntthetroll	Issue Monitored: Huntthetroll
2019-08-04 13:33	LaularuKyrumo	Note Added: 0039471
2023-11-11 07:28	puloletroll	Note Added: 0041376
2023-11-11 14:43	puloletroll	Note Added: 0041377
2024-03-06 23:09	Thumbthrower1	Note Added: 0041380

Notes
(0025178) Footkerchief (manager) 2014-07-08 16:49	Please upload a save that demonstrates the problem to http://dffd.wimbli.com/ [^] and post the link here.

(0025200) psioryx (reporter) 2014-07-08 18:30	The issue went away eventually. I can still provide the save file if it will help. It currently has another issue in progress: Necromancer of siege is not leaving edge of map.

(0025919) Footkerchief (manager) 2014-07-11 20:21	Orkel posted a save at 0007093: http://dffd.wimbli.com/file.php?id=8887 [^]

(0025963) 4maskwolf (reporter) 2014-07-12 05:53	If we're talking about immobile creatures, a similar thing with creatures not moving is happening in a current fort with undead on the edge of the map.

(0026023) eliotcougar (reporter) 2014-07-12 14:21	I'm not sure I should open an additional issue while there're so many flying relater issues that may have common cause... Does anyone notice that in adventure mode almost all birds just sit on the ground and don't even try to fly away if you attack them?..

(0026027) Rafal99 (reporter) 2014-07-12 14:55	In my fort I had a cluster of 9 Raven Men/Women sitting in midair about 10 z-levels above ground for 4 ingame months. During that time no other above-ground animals spawned on my map. Eventually I got a quiver from dead goblins so I could send a marksdwarf to shoot them down. Once some of them got hit they all dispersed in horror and flew in all directions.

(0026312) frodo0800 (reporter) 2014-07-14 06:38	The issue seems to be present on .03 too. And the same thing happened to me Rafal99, except I removed the flier tag from them so they could stop lagging everything.

(0026947) exottoyuhr (reporter) 2014-07-19 08:21 edited on: 2014-07-19 08:42	I think this happens -- sporadically -- with all flying creatures. In Losing Is !!Magic!! for 40.03, I saw a pegasus get stuck in the air next to a constructed wall, blinking some sort of brown color. (I told him to dismantle the wall, then cancelled that order, and his pathing went back to normal and he got back to work.)

(0027093) lethosor (manager) 2014-07-20 19:40	Reminder sent to: eliotcougar, frodo0800, psioryx, Rafal99 As mentioned in 0005421:0026952, this could be the same problem as 0006737. Can you check the tiles surrounding the stuck creatures with [k] to see if they are listed as "open space" or simply blank? (Preferably in the current version of DF, since 0.40.01-02 saves aren't compatible with the latest DF version.)

(0027585) Rafal99 (reporter) 2014-07-26 05:14 edited on: 2014-07-26 05:14	Unfortunately I don't have any forts in 40.03+ atm, but I loaded my save with this bug in DF 40.02 and checked the tiles where the Raven Men are stuck and all of these tiles and all the surrouding tiles too show as "Open space". But reading 0005421 it seems that open space refers there to any air tiles that are loaded, rather than to tiles being listed as "Open space" in the look menu.

(0027606) Kirkegaard (reporter) 2014-07-26 08:09 edited on: 2014-07-26 08:10	@lethosor I have a fort with 9 keas stuck in the air around the map. They are all in "open space". There is also 2 Hedgehog womans that have crawled up in a tree and are stuck now, they are not marked as in "open space" Should I upload a save? (version 0.40.3)

(0027607) Dwarfu (manager) 2014-07-26 08:16	Reminder sent to: Kirkegaard Yes, upload the save and post a link in the report.

(0027608) Kirkegaard (reporter) 2014-07-26 08:34	Save: http://dffd.wimbli.com/file.php?id=9160 [^]

(0027845) Talvieno (reporter) 2014-07-28 20:13	I have three stuck keas as well.

(0027985) Ataman (reporter) 2014-07-30 15:33 edited on: 2014-08-05 03:36	This bug really needs fixing birds being stuck blocks sieges and any form of hostiles as well. In short: Stuck birds = No Invaders, No Megabeasts, No Wildlife and No Forgotten Beasts. EDIT: (I might be wrong about beasts though). Save for vanilla 40.06: http://dffd.wimbli.com/file.php?id=9292 [^]

(0028655) tacomagic (reporter) 2014-08-09 11:30 edited on: 2014-08-09 11:47	I've got two Giant owls stuck on this map: http://dffd.wimbli.com/file.php?id=9332 [^] Of note, this bug seems to also negatively effect animal breeding. In the two years since the owls got stuck, I've had only one domestic animal birth. I've had a peahen sitting on a clutch of 7 eggs for the entire age of the fort and boar/sow combo that's barren. Even more interesting, my cats haven't bred either. This may be related to 0007651 Could also be related to the undead problems. There's an undead elf left over from a siege that's been idling on the map since the owls got stuck.

(0028692) musicmastermsh (reporter) 2014-08-09 19:23	Stuck barn owl, dwarves breeding like alpacas, alpacas breeding like dwarves. (they're unmarried to they ain't doing squat) Haven't had any invasions or goblins so far, just some monkeys. http://dffd.wimbli.com/file.php?id=9335 [^]

(0028702) Borschwanger (reporter) 2014-08-10 00:22	I have had 9 Giant Wrens for a year and a quarter and they are too high to be hunted. Also have some carp that gave birth, not sure if they are supposed to stick around either. I have had both a kobold ambush and a goblin siege. The ewe/ram pair and my dogs have given birth. My cat pair has not. Haven't allowed eggs to sit for hatching since I couldn't hunt any food so that is as yet unknown. Lots of dwarf births.

(0028877) Loci (manager) 2014-08-12 09:23	After a certain amount of time on the map, animal groups path to the map edge to migrate out. It appears that the "migrate out" code does not correctly handle critters without a walkable path to an edge (from flying, climbing, or swimming). Preventing fliers from becoming airborne (such as roofing over the floor of the caverns) allows them to migrate off the map successfully. Since this bug completely breaks one of the more interesting aspects of the game, I think it should qualify for more than "minor" severity.

(0028925) thvaz (reporter) 2014-08-13 00:12	I got ravens stuck in the air, but I have had invasions.

(0028971) Robsoie (reporter) 2014-08-13 12:23 edited on: 2014-08-13 12:24	I experimented with a fortress of mine in 40.08, as despite i had only 20 dwarves the game was running much slower than it should . I noticed i had 6 "kea" and 6 "sparrow men" stuck in the air all around the map, not moving. I decided to edit the saved game own raw and remove the [FLIER] tag from both creature_birds.txt and creature_birds_new.txt files Then i loaded that save, the 6 keas and the 6 sparrow men (or simple sparrow, i'm not sure i remember them right) fell to the ground, the sparrow men were more lucky as they landed in a tree top, allowing most of them to survive, while the keas were less lucky and all died. Following that the game wasn't slow anymore, and was running quite fast actually (and much more in par with how it usually run with only 20 dwarves)

(0028990) tacomagic (reporter) 2014-08-13 13:58	Through a series of tests we proved that there is actually no link between stuck birds and breeding: http://www.bay12forums.com/smf/index.php?topic=142171.msg5570374#msg5570374 [^] Thus, there is no relationship between this bug and 0007651.

(0028994) Footkerchief (manager) 2014-08-13 15:38	I agree that there's probably no relationship, but proving one link doesn't disprove another link.

(0031916) Footkerchief (manager) 2015-01-12 15:52	Reopened and awaiting a save.

(0031918) ptb_ptb (reporter) 2015-01-12 21:23	Storkmen stuck over a volcano. Follow the stairs. :) http://dffd.wimbli.com/file.php?id=10435 [^]

(0034039) Killzemallgod (reporter) 2015-12-18 19:56	Seems to also effect flying guests. 0009382 http://www.bay12games.com/dwarves/mantisbt/view.php?id=9382 [^] And 0009385 appears to be a copy of it. http://www.bay12games.com/dwarves/mantisbt/view.php?id=9385 [^]

(0039471) LaularuKyrumo (reporter) 2019-08-04 13:33	I wonder if this has anything to do with how flying creatures can only pathfind to areas they would be able to access without flying? Since the creature gets stuck in the air, it has nowhere it can reach without flying, and therefore does not even attempt to go anywhere.

(0041376) puloletroll (reporter) 2023-11-11 07:28	Hello, i have had a bunch of giant stork stuck on the edge of the map for several ingame years, didn't have any invasions or new creature spawning for those 5 years. The all purpose of this fort being beast hunting, i tryed another fort and had the same issue with 3 osprey man. in both cases i immediatly started the run by burying my self under a bridge that would cut every access to my fort. hope it helps

(0041377) puloletroll (reporter) 2023-11-11 14:43	third time, and it occured to me that everytime this bug happened was in untamed wild biome (for me at least)

(0041380) Thumbthrower1 (reporter) 2024-03-06 23:09	Same here. It happens purely on untamed wilds and on heavily forested maps in my case (I haven't had the same problem on untamed wild deserts or savanas)