Trait GroundLevel 

pub trait GroundLevel {
    // Required methods
    fn block_state(&mut self, pos: [i32; 3]) -> BlockStateId;
    fn decorator_state(&mut self, pos: [i32; 3]) -> Option<BlockStateId>;
    fn random(&mut self) -> &mut dyn StructureRandom;
}

What a ground provider reads while the decorator asks it: vanilla’s WorldGenLevel as far as ground needs it, and the decorator’s random.

Required Methods

fn block_state(&mut self, pos: [i32; 3]) -> BlockStateId

BlockGetter.getBlockState: the block at pos in the region the tree decorates.

fn decorator_state(&mut self, pos: [i32; 3]) -> Option<BlockStateId>

The decorator’s own provider at pos (BlockStateProvider.getOptionalState), drawing from the same random: what GroundProvider::Decorator answers.

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

The decorator’s random (TreeDecorator.Context.random()): a provider’s draws come between the decorator’s own, in the order it asks.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors