active-cubiomes

Python/Cython bindings for cubiomes — a fast C library that replicates Minecraft's world-generation algorithms without running the game.

pip install active-cubiomes

Import name: import cubiomes (the distribution is active-cubiomes)

Quick start

from cubiomes import Generator, MCVersion, Dimension, BiomeID

g = Generator(MCVersion.MC_1_21)
g.apply_seed(Dimension.DIM_OVERWORLD, 123456789)

biome = g.get_biome_at(0, 63, 0)          # block coords
print(BiomeID(biome).name)                 # "river"

# 256×256 biome map at 1:4 scale
ids = g.gen_biomes(-128, -128, 256, 256)   # array.array('i')

import numpy as np
grid = np.array(ids, dtype=np.int32).reshape(256, 256)

Structure finding

from cubiomes import StructureType, get_structure_pos, is_viable_structure_pos

seed = 123456789
mc   = MCVersion.MC_1_21

for reg_x in range(-3, 4):
    for reg_z in range(-3, 4):
        pos = get_structure_pos(StructureType.Village, mc, seed, reg_x, reg_z)
        if pos and is_viable_structure_pos(StructureType.Village, g, *pos):
            print(f"Village at {pos}")

Strongholds

from cubiomes import iter_strongholds

for i, (x, z) in enumerate(iter_strongholds(g, seed=123456789)):
    print(f"Stronghold {i}: ({x}, {z})")
    if i >= 4:
        break

Seed search CLI

# Seeds with mushroom fields AND badlands within 4 km
cubiomes-search --mc 1.21 --biome mushroom_fields badlands --biome-radius 4000 --count 5

# Quad witch-hut base
cubiomes-search --mc 1.21 --quad Swamp_Hut --quad-dist 128 --count 3

# Inspect one seed
cubiomes-search --seed 123456789 --info

# Village and Monument within 400 blocks of each other, JSON output
cubiomes-search --mc 1.21 --proximity Village Monument 400 --count 10 --format json

Seed search Python API

from cubiomes.search import (
    SearchCriteria, BiomeCondition, StructureCondition,
    SpawnCondition, StrongholdCondition, ProximityCondition,
    QuadStructureCondition, BiomeDensityCondition,
    SlimeDensityCondition, AnyOfBiomes, CustomCondition,
    SeedSearch,
)
from cubiomes import MCVersion, BiomeID, StructureType

criteria = SearchCriteria(
    mc=MCVersion.MC_1_21,
    biomes=[BiomeCondition(BiomeID.mushroom_fields, radius=2000)],
    conditions=[
        SpawnCondition(max_distance=500),
        StrongholdCondition(count=1, max_distance=2000),
        QuadStructureCondition(StructureType.Swamp_Hut, max_dist=128),
    ],
)

for result in SeedSearch(criteria).run(
    seed_range=(0, 100_000_000),
    count=5,
    workers=4,
):
    print(result)

All condition types

Building from source

Requires GCC and Python ≥ 3.8:

git clone https://github.com/your-fork/active-cubiomes
cd active-cubiomes
pip install -e ".[dev]"

License

The Python bindings are MIT licensed. The bundled cubiomes C library is also MIT licensed.