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IDProjectCategoryView StatusLast Update
0003700Dwarf FortressPathfindingpublic2014-04-14 09:55
ReporterQuietust Assigned Touser11 
PrioritynormalSeverityminorReproducibilityhave not tried
Status acknowledgedResolutionopen 
Product Version0.31.18 
Summary0003700: Swimming beasts do not path toward targets?
DescriptionMy 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
TagsNo tags attached.

Relationships

has duplicate 0003203 resolveduser11 forgotten beasts getting stuck in underground pond 
related to 0004552 resolvedToady One Siegers waiting by bodies of dead leaders 
related to 0003616 new Non-swimming creatures migrate into flooded cavern, get stuck 

Activities

Untelligent

2011-04-26 21:35

reporter   ~0017538

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.

Kogut

2011-04-27 01:48

reporter   ~0017541

related to 0004552 (where smimming sieges are affected)

xephys

2012-03-26 12:56

reporter   ~0021758

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.

krenshala

2012-03-26 15:51

reporter   ~0021768

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.

user11

2014-04-14 09:52

  ~0024697

Kamber's save from 0003203 - http://dffd.wimbli.com/file.php?id=3094

user11

2014-04-14 09:55

  ~0024699

I moved Kamber's save over to this report, so it is acknowledged now.

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Issue History

Date Modified Username Field Change
2010-11-20 21:26 Quietust New Issue
2011-04-26 21:35 Untelligent Note Added: 0017538
2011-04-27 01:48 Kogut Note Added: 0017541
2011-10-28 11:49 user6 Relationship added related to 0004552
2012-03-26 12:56 xephys Note Added: 0021758
2012-03-26 15:51 krenshala Note Added: 0021768
2014-04-14 09:52 user11 Note Added: 0024697
2014-04-14 09:54 user11 Relationship added has duplicate 0003203
2014-04-14 09:55 user11 Note Added: 0024699
2014-04-14 09:55 user11 Assigned To => user11
2014-04-14 09:55 user11 Status new => acknowledged
2014-04-15 20:32 user11 Relationship added related to 0003616