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[Zwaryczuk]

I’ve been trying to generate worlds with many volcanoes; I’ve also tried to boost the river count in the world. As you might be able to tell I’m going for a very Dwarfy Fortress with several magma baths, both for outrageous nobles and for their green-visiting friends. I’ve been able to get several embark locations with both streams or brooks near volcanoes but the problem is Every single volcano passes through water in the caverns or an opening in the caverns and is always empty. Is this a bug or do I just have that bad of luck?

[Nibble]

I'm not sure which version you're using, but I use the world gen code below for all my games in 31.12, and it never gets empty volcanoes. It's really easy to find embark locations with a volcano and a river.  The code was provided by someone else on this forum.

Code: [Select]

[WORLD_GEN]
[TITLE:AWESOME REGION]
[SEED:3715524029]
[DIM:129:129]
[EMBARK_POINTS:1274]
[END_YEAR:1050]
[BEAST_END_YEAR:200:80]
[REVEAL_ALL_HISTORY:1]
[CULL_HISTORICAL_FIGURES:0]
[ELEVATION:1:400:401:401]
[RAINFALL:0:100:200:200]
[TEMPERATURE:25:75:200:200]
[DRAINAGE:0:100:200:200]
[VOLCANISM:0:100:400:400]
[SAVAGERY:0:100:200:200]
[ELEVATION_FREQUENCY:1:1:1:1:1:1]
[RAIN_FREQUENCY:1:1:1:1:1:1]
[DRAINAGE_FREQUENCY:1:1:1:1:1:1]
[TEMPERATURE_FREQUENCY:1:1:1:1:1:1]
[SAVAGERY_FREQUENCY:1:1:1:1:1:1]
[VOLCANISM_FREQUENCY:1:1:1:1:1:1]
[TITAN_NUMBER:9]
[TITAN_ATTACK_TRIGGER:80:0:100000]
[DEMON_NUMBER:28]
[GOOD_SQ_COUNTS:25:251:503]
[EVIL_SQ_COUNTS:25:251:503]
[PEAK_NUMBER_MIN:12]
[PARTIAL_OCEAN_EDGE_MIN:1]
[COMPLETE_OCEAN_EDGE_MIN:0]
[VOLCANO_MIN:150]
[REGION_COUNTS:SWAMP:260:1:1]
[REGION_COUNTS:DESERT:260:1:1]
[REGION_COUNTS:FOREST:1040:3:3]
[REGION_COUNTS:MOUNTAINS:2080:2:2]
[REGION_COUNTS:OCEAN:2080:1:1]
[REGION_COUNTS:GLACIER:0:0:0]
[REGION_COUNTS:TUNDRA:0:0:0]
[REGION_COUNTS:GRASSLAND:2080:3:3]
[REGION_COUNTS:HILLS:2080:3:3]
[EROSION_CYCLE_COUNT:250]
[RIVER_MINS:100:100]
[PERIODICALLY_ERODE_EXTREMES:1]
[OROGRAPHIC_PRECIPITATION:1]
[SUBREGION_MAX:2750]
[CAVERN_LAYER_COUNT:3]
[CAVERN_LAYER_OPENNESS_MIN:0]
[CAVERN_LAYER_OPENNESS_MAX:100]
[CAVERN_LAYER_PASSAGE_DENSITY_MIN:0]
[CAVERN_LAYER_PASSAGE_DENSITY_MAX:0]
[CAVERN_LAYER_WATER_MIN:0]
[CAVERN_LAYER_WATER_MAX:100]
[HAVE_BOTTOM_LAYER_1:1]
[HAVE_BOTTOM_LAYER_2:1]
[LEVELS_ABOVE_GROUND:15]
[LEVELS_ABOVE_LAYER_1:7]
[LEVELS_ABOVE_LAYER_2:1]
[LEVELS_ABOVE_LAYER_3:1]
[LEVELS_ABOVE_LAYER_4:1]
[LEVELS_ABOVE_LAYER_5:2]
[LEVELS_AT_BOTTOM:1]
[CAVE_MIN_SIZE:5]
[CAVE_MIN_SIZE:5]
[CAVE_MAX_SIZE:25]
[MOUNTAIN_CAVE_MIN:20]
[NON_MOUNTAIN_CAVE_MIN:20]
[ALL_CAVES_VISIBLE:0]
[SHOW_EMBARK_TUNNEL:2]
[TOTAL_CIV_NUMBER:20]
[TOTAL_CIV_POPULATION:15000]
[PLAYABLE_CIVILIZATION_REQUIRED:1]
[ELEVATION_RANGES:2080:4160:2080]
[RAIN_RANGES:2080:4160:2080]
[DRAINAGE_RANGES:2080:4160:2080]
[SAVAGERY_RANGES:2080:4160:2080]
[VOLCANISM_RANGES:0:0:0]

[Zwaryczuk]

Sweet thanks,

Yeah I'm using 31.13 so hopefully this will work out perfectly.

Will i have any issues if I adjust the caverns to get 25 levels of uninterupted solid rock above the first cavern?

[Shoku]

You shouldn't have any issues there. Most often volcanos are like a cookie cutter shape pushed from the top of anything it touched and went straight down into the magma layer. This includes the wall that contains it. I would imagine that at some point Toady may make it so that it only goes up to the lowest surface rock it touches with potential rock hanging over it again when he gets to the point that he thinks columns of magma need some fresh attention. Maybe even give them the wobbly shape they used to have in spots where natural rock would still contain it or something.

[jaxad0127]

I've found that setting HAVE_BOTTOM_LAYER_2 to 0 will give these empty volcanoes. Seems you need HFS for them to form properly.