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IDProjectCategoryView StatusDate SubmittedLast Update
0010684Dwarf FortressMap Featurespublic2018-03-31 14:362018-03-31 19:20
Assigned To 
PlatformMicrosoft WindowsOSWindows (x86)OS VersionVista SP2
Product Version0.44.08 
Target VersionFixed in Version 
Summary0010684: Chopping down trees that overhang smoothed natural walls removes the floor from top of walls
Description0007127 involved a similar situation with constructed walls.

Smoothing a natural rock wall directly under a tree and then cutting down the tree creates an empty space over the smoothed wall.

It is an uncommon bug since soil cannot be smoothed. Natural occurrence of trees growing on top of rock tiles is rare, because trees generate in biomes where soil layers are present. In most cases, trees on rock can be found in the borders of mountains and wooded biomes, where presumably some trees from the wooded area are scattered into the mountain area during gen.
Steps To ReproduceSave: WIP

Description: Tests are on the bottom-left portion of the map. On z-level 147, there are two natural rock walls that have been smoothed (Granite Pillar) under trees. One is located in a dug tunnel, and the other is a few tiles below on the hillside. On z-level 148, there is a large tunnel with two constructed rock walls (Rough Granite Block Pillar) under two diagonally adjacent trees, made for comparison. All four trees are already designated to be chopped down by a wood cutter.

1. Unpause the game.
2. Allow wood cutter to cut down the designated trees. Occasionally some logs may fall on the empty floor spaces.

Self-reproducing steps:
1. Embark on an area that borders a mountain biome and a biome with trees
2. Find a tree with a rock wall tile underneath.
3. Smooth the wall tile.
4. Cut down the tree.
Additional InformationBug was present since at least 0.43.05. In versions before 0.44.03, certain creatures could move through the floorless space (0008383), but this is no longer the case.
TagsNo tags attached.
Attached Files

- Relationships
related to 0008469confirmedLoci Cutting down trees leaves a hole in the floor (if empty layer underneath) 

-  Notes
Doorkeeper (reporter)
2018-03-31 14:50

Save: [^]
Doorkeeper (reporter)
2018-03-31 14:53

Correction: In Additional Information, it was 0.44.06, not 0.44.03. My mistake.

- Issue History
Date Modified Username Field Change
2018-03-31 14:36 Doorkeeper New Issue
2018-03-31 14:50 Doorkeeper Note Added: 0038101
2018-03-31 14:53 Doorkeeper Note Added: 0038102
2018-03-31 19:20 Loci Relationship added related to 0008469

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