Dwarf Fortress Bug Tracker - Dwarf Fortress
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0008799Dwarf FortressDwarf Mode -- Interface, Designationspublic2015-02-07 12:072015-02-12 02:48
ptb_ptb 
 
normalminoralways
newopen 
PCWindows7
0.40.24 
 
0008799: Underground tree 'up ramps' can be designated to be removed, which causes tree to collapse
I noticed cave ins occurring when removing ramps near a underground tree/fungus. On closer inspection, it seems that the tree 'ramps' were being included in the designation. When one is removed there is a cave in triggered and the tree vanishes (no logs).
Designate - 'z' ramp removal on an underground tree/fungus
(Save file has a goblin-cap with a staircase next to it ready for this)
Save file: http://dffd.bay12games.com/file.php?id=10558 [^]
No tags attached.
Issue History
2015-02-07 12:07ptb_ptbNew Issue
2015-02-10 10:03ptb_ptbNote Added: 0032203
2015-02-10 12:46ButtonNote Added: 0032204
2015-02-11 08:42ptb_ptbNote Added: 0032210
2015-02-12 01:13DetrosNote Added: 0032214
2015-02-12 02:48ptb_ptbNote Added: 0032215
2015-02-12 04:18ptb_ptbNote Edited: 0032215bug_revision_view_page.php?bugnote_id=0032215#r12915
2015-02-12 05:22ptb_ptbNote Edited: 0032215bug_revision_view_page.php?bugnote_id=0032215#r12916

Notes
(0032203)
ptb_ptb   
2015-02-10 10:03   
I've just found out that this doesn't happen in a game using the Modest mod. I don't know if that is a coincidence, or what.
(0032204)
Button   
2015-02-10 12:46   
Should be a coincidence. I didn't do it.
(0032210)
ptb_ptb   
2015-02-11 08:42   
Ah, I've got some more information. In the same game it will work on some goblin cap 'up ramps' and not on other goblin cap 'up ramps'.
(0032214)
Detros   
2015-02-12 01:13   
Isn't that "works sometimes" rather dependant how the rest of tree is positioned and what is hanging from where? So removing some tiles of some trees may be safe as long it can stand on its other tiles?
(0032215)
ptb_ptb   
2015-02-12 02:48   
(edited on: 2015-02-12 05:22)
@Detros: No.

Some goblin cap, nether cap and black cap trees have ramps that can be DESIGNATED some trees apparently don't. I'm not talking about whether the tree collapses or not.

[EDIT] On further inspection, it seems that tree 'ramps' that aren't adjacent* to tree 'walls' cannot be designated. The others can.

* Adjacent including diagonally-adjacent.