Trait GenerationContext 

pub trait GenerationContext {
    // Required methods
    fn metadata(&self) -> &dyn BlockMetadata;
    fn chunk(&self) -> ChunkPos;
    fn seed(&self) -> i64;
    fn sea_level(&self) -> i32;
    fn min_y(&self) -> i32;
    fn max_y(&self) -> i32;
    fn random(&mut self) -> &mut dyn StructureRandom;
    fn base_height(&mut self, x: i32, z: i32, kind: HeightmapType) -> i32;
    fn base_columns(
        &mut self,
        x: i32,
        z: i32,
        kinds: &[HeightmapType],
    ) -> Vec<Vec<bool>>;
    fn noise_column(&mut self, x: i32, z: i32) -> NoiseColumn;
    fn noise_biome(&mut self, quart: [i32; 3]) -> BiomeId;
    fn column_has_valid_biome(
        &mut self,
        x: i32,
        z: i32,
        min_y: i32,
        max_y: i32,
    ) -> bool;
    fn config(&self) -> Arc<Tag> ;
}

The start context a type’s find_generation_point sees: vanilla’s GenerationContext over one chunk, on the worker thread; deterministic for the seed.

Required Methods

fn metadata(&self) -> &dyn BlockMetadata

Immutable, load-owned block metadata, safe to borrow on this worker.

fn chunk(&self) -> ChunkPos

The chunk the start would be in.

fn seed(&self) -> i64

The world’s seed.

fn sea_level(&self) -> i32

The level’s sea level.

fn min_y(&self) -> i32

The level’s minimum block Y.

fn max_y(&self) -> i32

The level’s maximum block Y.

fn random(&mut self) -> &mut dyn StructureRandom

The random vanilla’s types draw from, seeded for this chunk (WorldgenRandom.setLargeFeatureSeed of the seed, chunk X and Z).

fn base_height(&mut self, x: i32, z: i32, kind: HeightmapType) -> i32

ChunkGenerator.getBaseHeight: the first free height at (x, z) by the heightmap kind.

fn base_columns( &mut self, x: i32, z: i32, kinds: &[HeightmapType], ) -> Vec<Vec<bool>>

ChunkGenerator.getBaseColumn as heightmap opacity, from min_y up, for several kinds from one noise-column pass.

fn noise_column(&mut self, x: i32, z: i32) -> NoiseColumn

ChunkGenerator.getBaseColumn’s blocks: the noise column at (x, z).

fn noise_biome(&mut self, quart: [i32; 3]) -> BiomeId

Noise biome at a quart position (the resolver’s, no zoom).

fn column_has_valid_biome( &mut self, x: i32, z: i32, min_y: i32, max_y: i32, ) -> bool

GenerationContext.validBiome over inclusive block Y bounds of the column at (x, z): whether any biome the structure names occurs there.

fn config(&self) -> Arc<Tag>

The structure’s NBT config, converted once when its definition loads.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors