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IDProjectCategoryView StatusLast Update
0000487Dwarf FortressWorld Generation -- Parameterspublic2014-01-27 17:42
Reporterrimbecano Assigned To 
PrioritynormalSeveritymajorReproducibilityalways
Status newResolutionopen 
Product Version0.31.01 
Summary0000487: Number of volcanoes is not affected by vulcanism, only by the minimum
DescriptionVulcanism, and the parameters that control it, seem to affect the rock layers one finds, but not the number of volcanoes. The only parameter that seems to affect the number of volcanoes is the "Minimum number of volcanoes parameter". The number of volcanoes in a world will be exactly equal to this parameter, no more (and, of course, no less, since it's a minimum).
Steps To ReproduceSet minimum vulcanism to 99, maximum vulcanism to 100, minimum number of volcanoes to zero.

Should generate a world filled with Basalt, Obsidian, etc, but with no volcanoes.

It even works with min vulcanism 100, max vulcanism 100.
TagsIntentional/Expected?, volcanoes, worldgen

Activities

Qloos

2010-04-05 11:01

reporter   ~0001119

Live long and prosper, Vulcanism is the true path to enlightenment.

Logical2u

2010-04-05 11:12

manager   ~0001121

This isn't a bug.

The parameter you're changing is one that affects the rock makeup, not the magma content. Higher values yield more igneous stone - like Basalt and obsidian. Intermediate values I seem to recall yield more metamorphic rocks. Low values -> more soil.

As you've noted, the only parameter than generates more volcanoes is the minimum number of volcanoes per world. Every embark now has magma if you dig deep enough, and volcanoes are partially bugged to be... oddly shaped. So this shouldn't REALLY be a problem.

This has been present since the last version. (I actually posted about it then... http://www.bay12games.com/forum/index.php?topic=20883.msg224501#msg224501)

rimbecano

2010-04-05 12:02

reporter   ~0001149

In the previous version it affected magma content as well as rock makeup (as it should, given that the types of rock makeup seen in the test case are caused by high magma content), and worlds could indeed contain more volcanoes than the minimum specified number.

I am not complaining that the parameter affects rock makeup, it should. I'm complaining that it no longer affects surface lava.

I maintain that this is a bug, given that:

A) It is no longer possible to get a random number of volcanoes, whereas in the last version it was, as worldgen would create volcanoes above the minimum number if vulcanism was high enough for it.
B) While magma is available deep, it's a chore to get at, often over a hundred Z-levels down.

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Issue History

Date Modified Username Field Change
2010-04-05 10:20 rimbecano New Issue
2010-04-05 11:01 Qloos Note Added: 0001119
2010-04-05 11:02 Qloos Tag Attached: worldgen
2010-04-05 11:02 Qloos Tag Attached: volcanoes
2010-04-05 11:12 Logical2u Note Added: 0001121
2010-04-05 12:02 rimbecano Note Added: 0001149
2010-06-30 13:37 user6 Tag Attached: Intentional?
2010-07-12 12:03 user6 Tag Renamed Intentional? => Intentional/Expected?
2014-01-27 17:42 user6 Summary Vulcanism does not affect surface lava. => Number of volcanoes is not affected by vulcanism, only by the minimum