Struct EndBiomeSource 

pub struct EndBiomeSource {
    seed: u64,
    end_islands: EndIslands,
}

Biome source for The End dimension.

Uses spatial distance from origin and the EndIslands density function for biome selection. Does NOT use climate parameters — biome choice is based on:

1. Central island (chunkX² + chunkZ² ≤ 4096): always the_end
2. Outer islands (erosion from EndIslands at transformed coordinates):
   • > 0.25 → end_highlands
   • ≥ -0.0625 → end_midlands
   • < -0.21875 → small_end_islands
   • otherwise → end_barrens

Matches vanilla’s TheEndBiomeSource.

Fields

seed: u64

end_islands: EndIslands

Implementations

impl EndBiomeSource

pub fn new(seed: u64) -> Self

Create a new End biome source with the given world seed.

The EndIslands density function is initialized with the world seed, matching vanilla’s RandomState.NoiseWiringHelper.wrapNew() which replaces the default seed-0 instance with EndIslandDensityFunction(worldSeed).

pub const fn seed(&self) -> u64

World seed used to initialize this biome source.

fn chunk_sampler(&self) -> ChunkBiomeSampler<'_>