bevy_ecs::removal_detection

Struct RemovedComponentReader

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pub struct RemovedComponentReader<T>
where T: Component,
{ /* private fields */ }
Expand description

Wrapper around a EventCursor<RemovedComponentEntity> so that we can differentiate events between components.

Methods from Deref<Target = EventCursor<RemovedComponentEntity>>§

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pub fn read<'a>(&'a mut self, events: &'a Events<E>) -> EventIterator<'a, E>

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pub fn read_mut<'a>( &'a mut self, events: &'a mut Events<E>, ) -> EventMutIterator<'a, E>

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pub fn read_with_id<'a>( &'a mut self, events: &'a Events<E>, ) -> EventIteratorWithId<'a, E>

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pub fn read_mut_with_id<'a>( &'a mut self, events: &'a mut Events<E>, ) -> EventMutIteratorWithId<'a, E>

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pub fn len(&self, events: &Events<E>) -> usize

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pub fn missed_events(&self, events: &Events<E>) -> usize

Amount of events we missed.

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pub fn is_empty(&self, events: &Events<E>) -> bool

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pub fn clear(&mut self, events: &Events<E>)

Trait Implementations§

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impl<T> Debug for RemovedComponentReader<T>
where T: Component + Debug,

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

Formats the value using the given formatter. Read more
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impl<T: Component> Default for RemovedComponentReader<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T: Component> Deref for RemovedComponentReader<T>

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type Target = EventCursor<RemovedComponentEntity>

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<T: Component> DerefMut for RemovedComponentReader<T>

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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where T: Any + Send + Sync,

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Returns the argument unchanged.

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where T: Default,

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fn from_world(_world: &mut World) -> T

Creates Self using default().

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fn instrument(self, span: Span) -> Instrumented<Self>

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
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type Error = Infallible

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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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