Dwarf Fortress Bug Tracker - Dwarf Fortress
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0003700Dwarf FortressPathfindingpublic2010-11-20 21:262014-04-14 09:55
Quietust 
Dwarfu 
normalminorhave not tried
acknowledgedopen 
0.31.18 
 
0003700: Swimming beasts do not path toward targets?
My fortress's 3rd cavern layer is mostly underwater, and if a forgotten beast arrives and doesn't have any targets*, it starts wandering around, eventually jumping into the water (since all forgotten beasts are amphibious). If I then give the beast a target*, it will continue to mill around randomly within the water until it happens to step back onto land, at which point it will immediately attack.

By comparison, if a target is made available while the beast is on land, it will immediately attack.

* either a direct path into the fortress, or an animal chained within an airlock
No tags attached.
has duplicate 0003203resolved Dwarfu forgotten beasts getting stuck in underground pond 
related to 0004552resolved Toady One Siegers waiting by bodies of dead leaders 
related to 0003616new  Non-swimming creatures migrate into flooded cavern, get stuck 
Issue History
2010-11-20 21:26QuietustNew Issue
2011-04-26 21:35UntelligentNote Added: 0017538
2011-04-27 01:48KogutNote Added: 0017541
2011-10-28 11:49FootkerchiefRelationship addedrelated to 0004552
2012-03-26 12:56xephysNote Added: 0021758
2012-03-26 15:51krenshalaNote Added: 0021768
2014-04-14 09:52DwarfuNote Added: 0024697
2014-04-14 09:54DwarfuRelationship addedhas duplicate 0003203
2014-04-14 09:54DwarfuIssue Monitored: Kamber
2014-04-14 09:55DwarfuNote Added: 0024699
2014-04-14 09:55DwarfuAssigned To => Dwarfu
2014-04-14 09:55DwarfuStatusnew => acknowledged
2014-04-15 20:32DwarfuRelationship addedrelated to 0003616
2018-04-03 13:25HuntthetrollIssue Monitored: Huntthetroll

Notes
(0017538)
Untelligent   
2011-04-26 21:35   
This happens to me all the damn time. The FBs generally (not always) just run into a big ol' underground pool and stay there until I do something about it. Could be an oversight with amphibious creatures and pathing AI.
(0017541)
Kogut   
2011-04-27 01:48   
related to 0004552 (where smimming sieges are affected)
(0021758)
xephys   
2012-03-26 12:56   
I'm getting the same thing. Around one in five FBs in my most recent fortress just end up going into the water, and hovering around the same place until they eventually stop moving all together. 2 of them have wings too, they just sit there in the water, not doing anything at all.
(0021768)
krenshala   
2012-03-26 15:51   
I can almost see this as intentional, or at least not "broken", if you assume that water affects line-of-sight. Of course, we all know FBs don't care whether they can see the open door to path to it.

If something jumps in the water while the FB is cruising around, does he path to attack it? Maybe the pathing code is assuming land and water are in different areas.
(0024697)
Dwarfu   
2014-04-14 09:52   
Kamber's save from 0003203 - http://dffd.wimbli.com/file.php?id=3094 [^]
(0024699)
Dwarfu   
2014-04-14 09:55   
I moved Kamber's save over to this report, so it is acknowledged now.