0010684: Chopping down trees that overhang smoothed natural walls removes the floor from top of walls

Dwarf Fortress Bug Tracker - Dwarf Fortress

View Issue Details

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

Windows (x86)

OS Version

Vista SP2

Product Version

0.44.08

Target Version

Fixed in Version

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.