Struct dces::entity::EntityComponentManager

pub struct EntityComponentManager {
    pub entities: HashMap<Entity, HashMap<TypeId, Box<dyn Any>>>,
    pub shared: HashMap<Entity, RefCell<HashMap<TypeId, Entity>>>,
}

The EntityComponentManager represents the main entity and component storage.

Fields

entities: HashMap<Entity, HashMap<TypeId, Box<dyn Any>>>

The entities with its components.

shared: HashMap<Entity, RefCell<HashMap<TypeId, Entity>>>

Methods

impl EntityComponentManager

pub fn new() -> Self

Create sa new entity component manager.

pub fn register_entity(&mut self, entity: Entity)

Register a new entity.

pub fn remove_entity(&mut self, entity: Entity)

Removes a entity from the manager.

pub fn register_component<C: Component>(&mut self, entity: Entity, component: C)

Register a component for the given entity.

pub fn register_shared_component<C: Component>(     &mut self,     target: Entity,     source: Entity )

pub fn register_shared_component_box(     &mut self,     target: Entity,     source: SharedComponentBox )

pub fn register_component_box(     &mut self,     entity: Entity,     component_box: ComponentBox )

Register a component_box for the given entity.

pub fn borrow_component<C: Component>(     &self,     entity: Entity ) -> Result<&C, NotFound>

Returns a reference of a component of type C from the given entity. If the entity does not exists or it dosen't have a component of type C NotFound will be returned.

pub fn borrow_mut_component<C: Component>(     &mut self,     entity: Entity ) -> Result<&mut C, NotFound>

Returns a mutable reference of a component of type C from the given entity. If the entity does not exists or it dosen't have a component of type C NotFound will be returned.

Trait Implementations

impl Default for EntityComponentManager

fn default() -> EntityComponentManager

Returns the "default value" for a type.