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IDProjectCategoryView StatusDate SubmittedLast Update
0008573Dwarf FortressCave-inspublic2014-11-22 06:422015-01-09 07:29
Assigned ToFootkerchief 
PlatformPCOSWindowsOS Version7
Product Version0.40.18 
Target VersionFixed in Version 
Summary0008573: Unsupported land not dropping (yes, cave-ins are enabled)
DescriptionI dug out a channel around about 2/3 of the map, channeled out an aquifer layer, and then tried to drop it. It didn't drop. I'm pretty sure there is nothing visible that could be supporting it. Clear gap all the way around and clear water all the way underneath.
Steps To Reproduce* Load save
* Look
Additional InformationI had a big platform area above supported by trees an a stairway. That collapsed properly when every supporting thing was removed.

Save: [^]
TagsSave Included, Save Needs Testing
Attached Files

- Relationships
duplicate of 0006949resolvedToady One Building in trees and then chopping down the tree leaves the building floating in the air 
related to 0008555resolvedToady One Pathfinding is not updated when trees are cut down 

-  Notes
smjjames (reporter)
2014-11-22 06:55
edited on: 2014-11-22 06:57

Are you absolutely sure? Check above and below it for anything that might be connecting it.

Not sure if trees that have adjecant canopies would stop it from falling.

ptb_ptb (reporter)
2014-11-22 06:57
edited on: 2014-11-22 07:14

I<s>'m</s> was 99.8% sure. And I <s>have</s>did, several times.

Ah, there's an up stairway that I didn't think would provide support, but seeing as it hasn't collapsed, maybe it actually does. Whoops. I'll see if I can get rid of the bugger.

[EDIT] Update. It appears that the large lump of land has decided that it is actually unsupported and started dropping of its own accord. I had started work to break the upper stairs mentioned above, but not actually done so. It was possibly triggered into action when I built a small ramp and floor above where the upper stairs is (in preparation for dropping crap on it from above).

Incidentally, for those reading this interested in 'big splash' mechanics this again showed the 'chasm formation' behavior. Where giant lumps of rock dropped from above gain a one tile split through the middle.

ptb_ptb (reporter)
2014-11-22 07:19
edited on: 2014-11-22 07:33

Save file: [^]

You can probably get it to collapse by building a ramp, wall, and floor over the chasm on the left (one z up from ground level) above where the up stairs are.

[EDIT] All trees were cut down on left hand side of map.

(Posted wrong link)

ptb_ptb (reporter)
2014-12-27 09:30

I think this may be related to 0008555 Pathfinding not updated when trees cut down. If the land was supported by trees, but the trees were cut down, it may not be updating the 'supported/not supported' thing.
ptb_ptb (reporter)
2015-01-02 14:10

Also probably related to / duplicate of 0006949
ptb_ptb (reporter)
2015-01-09 06:54

I'm pretty sure this was 0006949 and is fixed.
Footkerchief (manager)
2015-01-09 07:29

Cool, thanks!

- Issue History
Date Modified Username Field Change
2014-11-22 06:42 ptb_ptb New Issue
2014-11-22 06:55 smjjames Note Added: 0031114
2014-11-22 06:57 ptb_ptb Note Added: 0031115
2014-11-22 06:57 smjjames Note Edited: 0031114 View Revisions
2014-11-22 07:02 ptb_ptb Note Edited: 0031115 View Revisions
2014-11-22 07:14 ptb_ptb Note Edited: 0031115 View Revisions
2014-11-22 07:19 ptb_ptb Note Added: 0031117
2014-11-22 07:22 ptb_ptb Note Edited: 0031117 View Revisions
2014-11-22 07:33 ptb_ptb Note Edited: 0031117 View Revisions
2014-12-27 09:30 ptb_ptb Note Added: 0031510
2014-12-27 09:33 lethosor Additional Information Updated View Revisions
2014-12-27 09:34 lethosor Tag Attached: Save Included
2014-12-27 09:34 lethosor Tag Attached: Save Needs Testing
2014-12-27 19:33 Footkerchief Relationship added related to 0008555
2015-01-02 14:10 ptb_ptb Note Added: 0031643
2015-01-09 06:54 ptb_ptb Note Added: 0031817
2015-01-09 07:29 Footkerchief Note Added: 0031818
2015-01-09 07:29 Footkerchief Relationship added duplicate of 0006949
2015-01-09 07:29 Footkerchief Status new => resolved
2015-01-09 07:29 Footkerchief Resolution open => duplicate
2015-01-09 07:29 Footkerchief Assigned To => Footkerchief

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