Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0006551Dwarf FortressDwarf Mode -- Buildings, Generalpublic2014-07-07 20:442015-06-19 12:37
ReporterKanil 
Assigned Tolethosor 
PrioritynormalSeverityminorReproducibilityalways
StatusresolvedResolutionsuspended 
PlatformOSOS Version
Product Version0.40.01 
Target VersionFixed in Version 
Summary0006551: Constructing on trees causes them to vanish
DescriptionBuilding a construction (such as a floor, or a wall) on any tree tile causes the entire tree to simply vanish. No logs are generated, and the tree leaves behind sand tiles where it once stood. Any constructions supported by the tree will then collapse.

I couldn't find a tree with an available thick branch tile to test upon, but floors will destroy trees when built on their twig tiles, branch tiles, and the triangular "top" tiles.
Steps To Reproduce
Additional Information
Tags0.40.04
Relationships
related to 0008719resolved Toady One Building constructions over parts of trees crashes 
has duplicate 0007855resolved Knight Otu Building on tree canopy, causes it to vanish 
related to 0006530confirmed Footkerchief Dwarves won't build stairs in trees (specifically leaves/twigs) 
related to 0006948new  Trees supporting adjacent constructions is inconsistent 
related to 0008469confirmed Loci Cutting down trees leaves a hole in the floor (if empty layer underneath) 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2014-07-07 20:44KanilNew Issue
2014-07-08 04:33JoeJoeNote Added: 0024987
2014-07-08 14:32lethosorRelationship addedrelated to 0006530
2014-07-08 19:38krenshalaNote Added: 0025222
2014-07-08 19:38krenshalaIssue Monitored: krenshala
2014-07-10 22:01splitcorezNote Added: 0025682
2014-07-10 22:02splitcorezIssue Monitored: splitcorez
2014-07-18 15:11krenshalaNote Edited: 0025222bug_revision_view_page.php?bugnote_id=0025222#r10032
2014-07-21 05:25lando242Note Added: 0027121
2014-07-22 13:32lethosorTag Attached: 0.40.04
2014-07-22 13:32lethosorAssigned To => lethosor
2014-07-22 13:32lethosorStatusnew => acknowledged
2014-07-22 13:33lethosorRelationship addedrelated to 0006948
2014-08-05 12:15Knight OtuRelationship addedhas duplicate 0007855
2014-08-08 16:16FootkerchiefStatusacknowledged => confirmed
2014-11-04 21:38nonfishNote Added: 0030870
2014-11-05 08:39FootkerchiefRelationship addedrelated to 0008469
2015-03-29 19:19Afghani84Issue Monitored: Afghani84
2015-03-29 19:24Afghani84Note Added: 0032464
2015-03-30 02:38DetrosNote Added: 0032469
2015-06-14 09:35lethosorRelationship addedrelated to 0008719
2015-06-14 09:36lethosorNote Added: 0032778
2015-06-14 09:36lethosorStatusconfirmed => resolved
2015-06-14 09:36lethosorResolutionopen => suspended
2015-06-19 12:37krenshalaIssue End Monitor: krenshala
2016-01-03 06:12Afghani84Issue End Monitor: Afghani84

Notes
(0024987)
JoeJoe   
2014-07-08 04:33   
The exact same thing happens when any root tile is mined out.
(0025222)
krenshala   
2014-07-08 19:38   
(edited on: 2014-07-18 15:11)
Any walls beneath the tree that vanishes lack a floor, and are shown as open space instead of a floor on the level above where they are constructed.

edit: looks like this aspect was fixed according to Toady's post for the 17th.
(0025682)
splitcorez   
2014-07-10 22:01   
Bridges overlapping trees won't destroy the trees as they don't "replace" twigs or branches.
(0027121)
lando242   
2014-07-21 05:25   
Nope, not fixed. I still lose the floor when the tree disappears. This was tested on a save from .03 though.
(0030870)
nonfish   
2014-11-04 21:38   
This bug is still present in .40.14, although the behavior is no longer observed when root tiles are mined out
(0032464)
Afghani84   
2015-03-29 19:24   
I just had a tree just vanish in 40.24 (latest LNP with Phoebus graphics) while checking a bug report here: 0008884

Strangely, Detros and the initial poster had DF crash which would point towards 0008719. Just curious whether other people can reproduce what I saw for this save.
(0032469)
Detros   
2015-03-30 02:38   
Just to sum it up, according to 0008719 it seems building in trees causes crashes for lots of people with version 0.40.24 while for versions 0.40.0 to 0.40.23 it seems to fall in the case reported here where it ends only with a vanishing tree.
(0032778)
lethosor   
2015-06-14 09:36   
I'm going to resolve this since it's been replaced by 0008719.