Dwarf Fortress Bug Tracker - Dwarf Fortress
View Issue Details
IDProjectCategoryView StatusDate SubmittedLast Update
0011303Dwarf FortressDwarf Mode -- Environmentpublic2020-02-04 01:492020-02-16 09:18
ReporterDragonslayerelf 
Assigned ToLoci 
PrioritynormalSeveritymajorReproducibilitysometimes
Statusneeds feedbackResolutionopen 
PlatformPCOSWindows 10OS Version
Product Version0.47.01 
Target VersionFixed in Version 
Summary0011303: Cave moss not appearing in cavern layers
DescriptionI've been attempting to make a series of cavern-locked dwarvws with grazers but I've actually been unable to get cave grass to spawn at all.
Steps To Reproduce1) Generate a world
2) Dig to the first cavern layer
3) Witness the lack of moss.
Additional InformationI've made some init changes regarding the fps counter, spacing, and other minor gameplay tweaks but nothing was related to plants
TagsNo tags attached.
Relationships
related to 0011377acknowledged Loci Breached mossy cavern did not release cave spores 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2020-02-04 01:49DragonslayerelfNew Issue
2020-02-04 02:29FantasticDorfNote Added: 0039853
2020-02-04 03:58TalvienoNote Added: 0039855
2020-02-04 06:56TalvienoNote Deleted: 0039855
2020-02-04 11:53mrmagolorNote Added: 0039863
2020-02-04 12:15LociNote Added: 0039866
2020-02-04 12:15LociAssigned To => Loci
2020-02-04 12:15LociStatusnew => needs feedback
2020-02-14 18:16anewanameNote Added: 0040059
2020-02-16 09:17LociIssue cloned0011377
2020-02-16 09:17LociRelationship addedrelated to 0011377
2020-02-16 09:18LociNote Added: 0040080

Notes
(0039853)
FantasticDorf   
2020-02-04 02:29   
Cavern moss can spawn on dirt stairs once the caverns are revealed but won't spontaneously or noticably spread to appropriate sun-hidden soil tiles from what i've seen anecdotally on a few worlds for 47.01.

Some saves provided in notes uploaded to DFFD would help clarify, i will attach one when i have the appropriate means to but it seemingly happens on every embark attempt reliably enough to reproduce.
(0039863)
mrmagolor   
2020-02-04 11:53   
Some caverns are dry at random. Are there any mushroom "trees" in the cavern? If not, this is likely the cause.
(0039866)
Loci   
2020-02-04 12:15   
Nearly all underground plants (including cave moss) require a "wet" biome. If you "tweaked" the caverns to be "dry" then a lack of plant life is expected. Even if you didn't, subterranean chasm caverns will occasionally spawn. How many caverns did you actually check?

I checked a few caverns in v0.47.01: three had moss, one did not. Those with moss released "spores" and spread vegetation to other underground tiles as expected.
(0040059)
anewaname   
2020-02-14 18:16   
Here is an example from this thread...
http://www.bay12forums.com/smf/index.php?topic=175575.0 [^] ,
the save...
http://dffd.bay12games.com/file.php?id=14792 [^]

You can see that the player breached a mossy cavern on z66, and built a wall in the tile adjacent to moss. But spores will not spread until another mossy cavern is breached, on z13, about 20 tiles to the northwest of the central staircase.
(0040080)
Loci   
2020-02-16 09:18   
Split the malfunctioning spores to 0011377