0002982: Dirt caving in on supports will float when the supports are removed

Dwarf Fortress Bug Tracker - Dwarf Fortress

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Project

Category

View Status

Date Submitted

Last Update

0002982

Dwarf Fortress

Dwarf Mode -- Environment

public

2010-08-08 13:37

2010-08-09 13:14

Reporter

AlEinstein

Assigned To

Priority

normal

Severity

major

Reproducibility

always

Status

new

Resolution

open

Platform

Acer Laptop

Windows Vista Home Premium

OS Version

Product Version

0.31.12

Target Version

Fixed in Version

Summary

0002982: Dirt caving in on supports will float when the supports are removed

Description

I was setting up my fortress in a way in which I could use a lever to cause a cave in which was severe enough to completely block of my entrance, so I made a simple set up to see if it would work. I caused a 2 x 2 area of rock to cave in on four supports directly under this rock. When I removed the supports, the rock on top of it did not fall, but it floated in the air. I redid this a few times and it always happened this way.

Steps To Reproduce

On level -5 I dug out a 2 x 2 room which would be blocked off by the cave in. On the four tiles of this room I built four supports which would catch the initial cave in so that I could cause another one by removing the supports at the pull of a lever. Directly above that on level -4 I dug out another 2 x 2 room. The floor of this room would be hit by the cave in from above and fall with it onto the supports in the room on level -5. Above this room on level -3 I dug a square channel leaving a 2 x 2 section on this center which would be the part that would cave in. Above this on level -2 I again dug a square channel to prepare the cave in. Above this on level -1 I again dug a square channel and inside the square channel I dug out the 2 x 2 section to separate it from the cavern causing it to cave in. It would normally have fallen to the room on level -5 but since I had supports there, it fell on top of the supports and remained on level -4, leaving the supports fully functional. When I pulled a lever to remove all of the supports, the 2 x 2 section of rock remained floating on level -4, although it was completely disconnected from the rest of the cavern.

Additional Information