0010684: Chopping down trees that overhang smoothed natural walls removes the floor from top of walls - Dwarf Fortress Bug Tracker

ID	Project	Category	View Status	Date Submitted	Last Update

0010684	Dwarf Fortress	Map Features	public	2018-03-31 14:36	2018-03-31 19:20

Reporter	Doorkeeper	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	new	Resolution	open
Platform	Microsoft Windows	OS	Windows (x86)	OS Version	Vista SP2
Product Version	0.44.08

Summary	0010684: Chopping down trees that overhang smoothed natural walls removes the floor from top of walls
Description	0007127 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 Reproduce	Save: 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. Steps: 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 Information	Bug 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.
Tags	No tags attached.

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