Struct ComponentChanged 

pub struct ComponentChanged<'w, T: 'static>(/* private fields */);

Methods from Deref<Target = ComponentEvent<'w, T>>

pub fn capacity(&self) -> usize

pub fn len(&self) -> usize

pub fn iter(&self) -> SafeVecIter<'_, Entity>

pub fn mark_read(&self)

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Trait Implementations

impl<'w, T> Deref for ComponentChanged<'w, T>

type Target = ComponentEvent<'w, T>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: 'static> SystemParam for ComponentChanged<'_, T>

type State = (Arc<EventVec<Entity>>, usize)

Used to store data which persists across invocations of a system.

type Item<'w> = ComponentChanged<'w, T>

fn init_state(world: &mut World, _meta: &mut SystemMeta) -> Self::State

The item type returned when constructing this system param. The value of this associated type should be Self, instantiated with new lifetimes.

fn get_param<'world>(state: &'world mut Self::State) -> Self::Item<'world>

Creates a parameter to be passed into a SystemParamFunction.

fn get_self<'world>(state: &'world mut Self::State) -> Self

fn align(state: &mut Self::State)

system align the world archetypes.

fn init(_state: &mut Self::State)

impl<T> Send for ComponentChanged<'_, T>

impl<T> Sync for ComponentChanged<'_, T>