Datapack Worldgen

Worldgen

The karst towers are normal NeoForge worldgen, so you can override them with a datapack. Most tuning (spacing, size, block, greenery) is easier in the config. See Config Pillars.

Files

File	Controls
data/fogged/neoforge/biome_modifier/karst_pillars.json	Which biomes get the tower feature
data/fogged/worldgen/configured_feature/karst_pillars.json	The feature itself
data/fogged/worldgen/placed_feature/karst_pillars.json	Its placement
data/fogged/worldgen/structure/karst_isle.json, karst_ridge.json, karst_pillars.json	Markers for clusters and ridges (used by /locate)
data/fogged/worldgen/structure_set/*.json	Marker spacing
data/fogged/tags/worldgen/structure/karst_pillars.json	All three markers, so /locate structure #fogged:karst_pillars works

Example: towers only in oceans

Override the biome modifier:

data/fogged/neoforge/biome_modifier/karst_pillars.json

{
  "type": "neoforge:add_features",
  "biomes": "#minecraft:is_ocean",
  "features": "fogged:karst_pillars",
  "step": "raw_generation"
}

If you change where towers generate, also set the same biomes in the three worldgen/structure/*.json files, so /locate still points at real towers.

Turning towers off

Set generatePillars = false in the config. Alternatively, override the biome modifier with "type": "neoforge:none".

Worldgen changes only affect new chunks.