0007041: Dragged animals escape a few tiles, then teleport back when their captor moves

(0025720)
HmH (reporter)
2014-07-11 02:17

Whoops, forgot to mention the version: it's .40.02.

(0025793)
HmH (reporter)
2014-07-11 10:33

UPD: It appears that animals behave that way when dragged in general, so this bug is simple to replicate: pen/pasture an animal and observe its movements while a dwarf is dragging it.

(0025799)
Rafal99 (reporter)
2014-07-11 10:52

I can confirm this happens every time dwarf is dragging an animal to cage or pasture.
It seems to be related to the new mechanics of walking speed, so for each step the dwarf walks dragging the animal, the animal is able to do 2-3 steps trying to "escape".

(0025801)
Quietust (reporter)
2014-07-11 10:56

It sounds like the game is missing checks for "is the creature being dragged" to prevent it from moving on its own.

(0026632)
Talvieno (reporter)
2014-07-16 08:22
edited on: 2014-07-16 08:22

I'm seeing this happen too. 40.03.

(0026637)
cwilhelm (reporter)
2014-07-16 08:45

I've also seen this happen in 40.03 with human traders.

(0026657)
Talvieno (reporter)
2014-07-16 12:03

This also happens simply when pasturing animals. Easily reproducible.

(0026711)
Rafal99 (reporter)
2014-07-16 22:30
edited on: 2014-07-17 00:02

Perhaps this bug summary could be made little more informative?

Edit: Thanks Foot.

(0027455)
Loci (manager)
2014-07-24 16:01
edited on: 2014-07-24 16:01

This can result in a deadlock situation when the animal wants to move in the same direction as the "leading" dwarf in a narrow hallway:

1. Dwarf takes a step forward; animal is teleported to dwarf's previous location
2. Animal takes a step forward onto the dwarf's tile, switching places with dwarf (returning dwarf to his previous tile)
3. Dwarf repaths (red question mark) and returns to step 1

(0027474)
newjrmint15 (reporter)
2014-07-24 20:24

i could swear i noticed the same thing happening in older versions. but it was never a problem for me.

Issue History
Date Modified	Username	Field	Change
2014-07-11 02:10	HmH	New Issue
2014-07-11 02:17	HmH	Note Added: 0025720
2014-07-11 02:17	HmH	Issue Monitored: HmH
2014-07-11 02:17	HmH	Issue End Monitor: HmH
2014-07-11 08:27	Footkerchief	Product Version	=> 0.40.02
2014-07-11 08:41	Footkerchief	Relationship added	related to 0003129
2014-07-11 10:33	HmH	Note Added: 0025793
2014-07-11 10:52	Rafal99	Note Added: 0025799
2014-07-11 10:52	Rafal99	Issue Monitored: Rafal99
2014-07-11 10:56	Quietust	Note Added: 0025801
2014-07-11 11:31	locustgate	Tag Attached: .40.02
2014-07-15 18:09	Footkerchief	Relationship added	related to 0007357
2014-07-16 08:22	Talvieno	Note Added: 0026632
2014-07-16 08:22	Talvieno	Note Edited: 0026632	View Revisions
2014-07-16 08:45	cwilhelm	Note Added: 0026637
2014-07-16 12:03	Talvieno	Note Added: 0026657
2014-07-16 20:54	Dwarfu	Relationship added	has duplicate 0007403
2014-07-16 22:30	Rafal99	Note Added: 0026711
2014-07-16 22:30	Rafal99	Note Edited: 0026711	View Revisions
2014-07-16 23:51	Footkerchief	Summary	Elven traders' pack animals walking in a weird fashion => Dragged animals escape a few tiles, then teleport back when their captor moves
2014-07-17 00:02	Rafal99	Note Edited: 0026711	View Revisions
2014-07-22 06:18	lethosor	Tag Detached: .40.02
2014-07-24 16:01	Loci	Note Added: 0027455
2014-07-24 16:01	Loci	Note Edited: 0027455	View Revisions
2014-07-24 20:24	newjrmint15	Note Added: 0027474
2014-08-02 11:11	Toady One	Status	new => resolved
2014-08-02 11:11	Toady One	Fixed in Version	=> Next Version
2014-08-02 11:11	Toady One	Resolution	open => fixed
2014-08-02 11:11	Toady One	Assigned To	=> Toady One
2014-08-08 01:54	Rafal99	Issue End Monitor: Rafal99
2014-08-10 19:00	Footkerchief	Relationship added	has duplicate 0007941

Notes
(0025720) HmH (reporter) 2014-07-11 02:17	Whoops, forgot to mention the version: it's .40.02.

(0025793) HmH (reporter) 2014-07-11 10:33	UPD: It appears that animals behave that way when dragged in general, so this bug is simple to replicate: pen/pasture an animal and observe its movements while a dwarf is dragging it.

(0025799) Rafal99 (reporter) 2014-07-11 10:52	I can confirm this happens every time dwarf is dragging an animal to cage or pasture. It seems to be related to the new mechanics of walking speed, so for each step the dwarf walks dragging the animal, the animal is able to do 2-3 steps trying to "escape".

(0025801) Quietust (reporter) 2014-07-11 10:56	It sounds like the game is missing checks for "is the creature being dragged" to prevent it from moving on its own.

(0026632) Talvieno (reporter) 2014-07-16 08:22 edited on: 2014-07-16 08:22	I'm seeing this happen too. 40.03.

(0026637) cwilhelm (reporter) 2014-07-16 08:45	I've also seen this happen in 40.03 with human traders.

(0026657) Talvieno (reporter) 2014-07-16 12:03	This also happens simply when pasturing animals. Easily reproducible.

(0026711) Rafal99 (reporter) 2014-07-16 22:30 edited on: 2014-07-17 00:02	Perhaps this bug summary could be made little more informative? Edit: Thanks Foot.

(0027455) Loci (manager) 2014-07-24 16:01 edited on: 2014-07-24 16:01	This can result in a deadlock situation when the animal wants to move in the same direction as the "leading" dwarf in a narrow hallway: 1. Dwarf takes a step forward; animal is teleported to dwarf's previous location 2. Animal takes a step forward onto the dwarf's tile, switching places with dwarf (returning dwarf to his previous tile) 3. Dwarf repaths (red question mark) and returns to step 1

(0027474) newjrmint15 (reporter) 2014-07-24 20:24	i could swear i noticed the same thing happening in older versions. but it was never a problem for me.