0000891: New HFS pathing troubles; ends up in a pathing "freeze"

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Project

Category

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Date Submitted

Last Update

0000891

Dwarf Fortress

Pathfinding

public

2010-04-09 12:46

2014-01-27 13:19

Reporter

SirPenguin

Assigned To

Footkerchief

Priority

normal

Severity

major

Reproducibility

have not tried

Status

resolved

Resolution

unable to reproduce

Platform

OS Version

Product Version

0.31.01

Target Version

Fixed in Version

Summary

0000891: New HFS pathing troubles; ends up in a pathing "freeze"

Description

This post will contain necessary spoilers.

I recently breached "hell" and had a whole slew of demons fly up to kill me and my fort. That was cool and all...until I had only two dwarves left. Every demon decided to path towards a sleeping dwarf. They were forced down a single tile wide hallway, and it seemed that all but 2 of the demons ended up "stuck" in the hallway, as if they were all waiting for the other to move out of the way.

The dwarf eventually died, but the demons remaiend stuck in the hallway despite another dwarf living in a different part of the fort. The demons are still stuck.

After observing them it appears that they're stuck in some sort of "making room" loop. After room is made (you can see a demon dart into a doorway for a split second), it seems that same demon then moves into a spot that is freed. As such they're stuck forever.

Saving and reloading did NOT fix this problem

Additional Information

There is absolutely nothing preventing their pathing to the last dwarf in the fort. Indeed, several dead dwarves are on the same level as him.

I suspect it has to do with their flier tag?

Save - http://www.megaupload.com/?d=U0ZZXYHW [^]

Tags

HFS, pathfinding

Attached Files

Relationships

parent of	0000628	resolved	Dwarfu	Crash while under attack by HFS
related to	0001340	new		Walling off HFS kills FPS

Notes
(0003200) SirPenguin (reporter) 2010-04-12 21:27	Problem still occurs in .03, which is a shame. I was hoping to have a proper end to that fort :(

(0004263) Footkerchief (manager) 2010-04-19 13:38 edited on: 2010-04-19 13:38	This may be related to an old bug: # 000812 □ [pathfinding] (http://www.bay12games.com/forum/index.php?topic=6793.0 [^]) dwarves can get stuck in a looping pattern trying to avoid each other

(0024405) Footkerchief (manager) 2014-01-27 13:19	Save is no longer available. If you have a save that demonstrates this problem in the latest version, please upload it to http://dffd.wimbli.com/ [^] and reopen this report (or PM me on the forums).

Issue History
Date Modified	Username	Field	Change
2010-04-09 12:46	SirPenguin	New Issue
2010-04-12 21:27	SirPenguin	Note Added: 0003200
2010-04-12 21:27	SirPenguin	Tag Attached: pathfinding
2010-04-12 21:27	SirPenguin	Tag Attached: HFS
2010-04-12 21:35	SirPenguin	Issue Monitored: SirPenguin
2010-04-14 12:42	lord_chaos22000	Issue Monitored: lord_chaos22000
2010-04-19 13:38	Footkerchief	Note Added: 0004263
2010-04-19 13:38	Footkerchief	Note Edited: 0004263	View Revisions
2010-04-19 13:40	Footkerchief	Relationship added	related to 0001340
2011-03-13 06:28	Dwarfu	Relationship added	parent of 0000628
2014-01-27 13:19	Footkerchief	Note Added: 0024405
2014-01-27 13:19	Footkerchief	Status	new => resolved
2014-01-27 13:19	Footkerchief	Resolution	open => unable to reproduce
2014-01-27 13:19	Footkerchief	Assigned To	=> Footkerchief