Module noise 

Noise generation utilities for world generation. Noise generation utilities matching vanilla Minecraft’s noise system.

This module provides the noise generation primitives used for world generation:

• [ImprovedNoise] - Base Perlin noise implementation
• [PerlinNoise] - Octave-based Perlin noise
• [NormalNoise] - Double Perlin noise (used for biome climate parameters)
• [SimplexNoise] - Simplex noise (used for End island generation)

Modules

aquifer 🔒

Noise-based aquifer system for underground fluid placement.

beardifier 🔒

Beardifier: terrain density modification around structure pieces.

blended_noise 🔒

BlendedNoise implementation matching vanilla Minecraft’s BlendedNoise.java

end_islands 🔒

End islands terrain generation algorithm.

improved_noise 🔒

Improved Perlin noise implementation matching vanilla Minecraft’s ImprovedNoise.java

noise_chunk 🔒

NoiseChunk: cell-based terrain density evaluation with trilinear interpolation.

normal_noise 🔒

Normal (Double Perlin) noise implementation matching vanilla Minecraft’s NormalNoise.java

ore_veinifier 🔒

Ore vein generation during terrain fill.

perlin_noise 🔒

Octave-based Perlin noise implementation matching vanilla Minecraft’s PerlinNoise.java

perlin_simplex_noise 🔒

Multi-octave simplex noise matching vanilla’s PerlinSimplexNoise.

simplex_noise 🔒

Simplex noise implementation matching vanilla Minecraft’s SimplexNoise.java.

Structs

Aquifer

Noise-based aquifer for a single chunk.

Beardifier

Computes terrain density contributions from nearby structure pieces and junctions.

BlendedNoise

Runtime BlendedNoise sampler with three seeded PerlinNoise instances.

EndIslands

End islands density function.

ImprovedNoise

Improved Perlin noise generator.

LazyAquifer

Deferred Aquifer. Used by create_structures so chunks where no structure queries the aquifer skip its (expensive) max_preliminary_surface_level scan.

NoiseChunk

Stores density values at cell corners for a single chunk and provides trilinear interpolation between corners for block-level resolution.

NormalNoise

Normal (Double Perlin) noise generator.

OreVeinifier

Ore vein generator. Holds cached block state IDs and the positional random splitter used for per-block randomness.

PerlinNoise

Octave-based Perlin noise generator.

PerlinSimplexNoise

Multi-octave simplex noise generator.

SimplexNoise

Simplex noise generator matching vanilla’s SimplexNoise.java.

Enums

AquiferResult

Result of the aquifer substance check.

Functions

preliminary_surface_level

Evaluate preliminary surface level at quart-quantized coordinates.