Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0003468Dwarf FortressDwarf Mode -- Environmentpublic2010-10-25 03:262017-11-01 15:13
ReporterDrunkenMonk 
Assigned ToLoci 
PrioritynormalSeveritytweakReproducibilityhave not tried
StatusresolvedResolutionno change required 
PlatformOSOS Version
Product Version0.31.16 
Target VersionFixed in Version 
Summary0003468: Mining created obsidian pillars causes created floor above to crash down
DescriptionCovering magma with water will create pillars on the water level due to splashing magma.

Mining these pillars causes the floro above to fall down in a cavein.

There shouldnt be a floor above any more than a constructed pillar will cause a pseudo-floor.
Steps To ReproduceLocate a magma pipe.

Drill a hole from a aquifer or river source.

Allow the water to cover the pipe from one side, to allow the obsidian cover to attach to the side.

When water spills diagonally into the lava, a cave in occours. On some of these, the splashed magma will create a wall on the water level.

digg these walls to reproduce the cave-in.
Additional Information
TagsNo tags attached.
Relationships
related to 0008444new  Cast obsidian, when mined away, will leave a floor of the surrounding stone 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2010-10-25 03:26DrunkenMonkNew Issue
2014-12-30 20:30FootkerchiefRelationship addedrelated to 0008444
2017-11-01 15:13LociNote Added: 0036834
2017-11-01 15:13LociStatusnew => resolved
2017-11-01 15:13LociResolutionopen => no change required
2017-11-01 15:13LociAssigned To => Loci

Notes
(0036834)
Loci   
2017-11-01 15:13   
The floor above is intentional, to keep items and creatures from falling into the pillar tile. You can use a channel or ramp designation to dig out the pillar (and floor above) without creating a cave-in. You can use an upstair or up/down-stair designation to mine out the pillar while leaving the floor above intact.