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hbm:single_piece

Places one selected template-pool element at terrain height.

Vanilla structure settings follow the Minecraft data pack format.

Fields

FieldMeaning and defaultRange
typeSelects the structure implementation.
biomesVanilla biome set eligible for placement.
height_offsetY offset applied after averaging terrain across the rotated footprint.−2³¹ to 2³¹−1
min_heightLower bound for the clamped average-ground height; default 1.−2³¹ to 2³¹−1
max_heightUpper bound for the clamped average-ground height; default 128. Must be at least min_height.−2³¹ to 2³¹−1
spawn_overridesVanilla mob-spawn overrides inside the structure.
start_poolTemplate pool from which the single piece is selected.
stepVanilla generation step for the structure.

Example

Source path: data/hbm/worldgen/structure/aircraft_carrier.json

{
  "type": "hbm:single_piece",
  "biomes": "#c:is_ocean",
  "height_offset": -6,
  "max_height": 42,
  "spawn_overrides": {},
  "start_pool": "hbm:single/aircraft_carrier",
  "step": "strongholds"
}

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