Struct bevy::ecs::world::EntityRef

pub struct EntityRef<'w> { /* private fields */ }

A read-only reference to a particular Entity and all of its components

Implementations

impl<'w> EntityRef<'w>

pub fn id(&self) -> Entity

pub fn location(&self) -> EntityLocation

pub fn archetype(&self) -> &Archetype

pub fn world(&self) -> &'w World

pub fn contains<T>(&self) -> boolwhere T: Component,

pub fn contains_id(&self, component_id: ComponentId) -> bool

pub fn contains_type_id(&self, type_id: TypeId) -> bool

pub fn get<T>(&self) -> Option<&'w T>where T: Component,

pub fn get_change_ticks<T>(&self) -> Option<ComponentTicks>where T: Component,

Retrieves the change ticks for the given component. This can be useful for implementing change detection in custom runtimes.

pub fn get_change_ticks_by_id( &self, component_id: ComponentId ) -> Option<ComponentTicks>

Retrieves the change ticks for the given ComponentId. This can be useful for implementing change detection in custom runtimes.

You should prefer to use the typed API EntityRef::get_change_ticks where possible and only use this in cases where the actual component types are not known at compile time.

impl<'w> EntityRef<'w>

pub fn get_by_id(&self, component_id: ComponentId) -> Option<Ptr<'w, Aligned>>

Gets the component of the given ComponentId from the entity.

You should prefer to use the typed API where possible and only use this in cases where the actual component types are not known at compile time.

Unlike EntityRef::get, this returns a raw pointer to the component, which is only valid while the 'w borrow of the lifetime is active.

Trait Implementations

impl<'w> Clone for EntityRef<'w>

fn clone(&self) -> EntityRef<'w>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'w> From<EntityMut<'w>> for EntityRef<'w>

fn from(entity_mut: EntityMut<'w>) -> EntityRef<'w>

Converts to this type from the input type.

impl<'w> Copy for EntityRef<'w>