Struct State 

pub struct State;

The main server state.

This struct is passed to systems and event handlers. It provides access to entities, components, blocks, resources, etc.

Implementations

impl State

pub fn entity(&self, _id: EntityId) -> Result<EntityRef, EntityDead>

Gets an EntityRef from an EntityId.

Returns an error if the entity no longer exists.

pub fn block(&self, _pos: BlockPosition) -> Result<BlockId, ChunkNotLoaded>

Gets the block at the given position.

Returns an error if the block’s chunk is not loaded.

pub fn set_block( &self, _pos: BlockPosition, _block: BlockId, ) -> Result<(), ChunkNotLoaded>

Sets the block at the given position.

Returns an error if the block’s chunk is not loaded.

pub fn resource<T: Resource>(&self) -> Result<&T, MissingResource>

Gets a reference to a resource.

Returns an error if the resource does not exist.

pub fn resource_mut<T: Resource>(&self) -> Result<&mut T, MissingResource>

Gets a mutable reference to a resource.

Returns an error if the resource does not exist.

impl State

pub fn player_by_name(&self, _name: &str) -> Option<EntityRef>

Gets an online player by their username.

pub fn entity_by_uuid(&self, _uuid: Uuid) -> Option<EntityRef>

Gets an online entity by their UUID.

This function works for all entities, not just players.

Trait Implementations

impl Debug for State

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.