pub struct PropagateEntityTrigger<const AUTO_PROPAGATE: bool, E, T>where
E: EntityEvent,
T: Traversal<E>,{
pub original_event_target: Entity,
pub propagate: bool,
/* private fields */
}
Expand description
An EntityEvent
Trigger
that behaves like EntityTrigger
, but “propagates” the event
using an Entity
Traversal
. At each step in the propagation, the EntityTrigger
logic will
be run, until PropagateEntityTrigger::propagate
is false, or there are no entities left to traverse.
This is used by the EntityEvent
derive when #[entity_event(propagate)]
is enabled. It is usable by every
EntityEvent
type.
If AUTO_PROPAGATE
is true
, PropagateEntityTrigger::propagate
will default to true
.
Fields§
§original_event_target: Entity
§propagate: bool
Whether or not to continue propagating using the T
Traversal
. If this is false,
The Traversal
will stop on the current entity.
Trait Implementations§
Source§impl<const AUTO_PROPAGATE: bool, E, T> Debug for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: EntityEvent,
T: Traversal<E>,
impl<const AUTO_PROPAGATE: bool, E, T> Debug for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: EntityEvent,
T: Traversal<E>,
Source§impl<const AUTO_PROPAGATE: bool, E, T> Default for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: EntityEvent,
T: Traversal<E>,
impl<const AUTO_PROPAGATE: bool, E, T> Default for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: EntityEvent,
T: Traversal<E>,
Source§fn default() -> PropagateEntityTrigger<AUTO_PROPAGATE, E, T>
fn default() -> PropagateEntityTrigger<AUTO_PROPAGATE, E, T>
Returns the “default value” for a type. Read more
Source§impl<const AUTO_PROPAGATE: bool, E, T> Trigger<E> for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: EntityEvent<Trigger<'a> = PropagateEntityTrigger<AUTO_PROPAGATE, E, T>> + for<'a> Event,
T: Traversal<E>,
impl<const AUTO_PROPAGATE: bool, E, T> Trigger<E> for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: EntityEvent<Trigger<'a> = PropagateEntityTrigger<AUTO_PROPAGATE, E, T>> + for<'a> Event,
T: Traversal<E>,
Source§unsafe fn trigger(
&mut self,
world: DeferredWorld<'_>,
observers: &CachedObservers,
trigger_context: &TriggerContext,
event: &mut E,
)
unsafe fn trigger( &mut self, world: DeferredWorld<'_>, observers: &CachedObservers, trigger_context: &TriggerContext, event: &mut E, )
Auto Trait Implementations§
impl<const AUTO_PROPAGATE: bool, E, T> Freeze for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>
impl<const AUTO_PROPAGATE: bool, E, T> RefUnwindSafe for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: RefUnwindSafe,
T: RefUnwindSafe,
impl<const AUTO_PROPAGATE: bool, E, T> Send for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
T: Send,
impl<const AUTO_PROPAGATE: bool, E, T> Sync for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
T: Sync,
impl<const AUTO_PROPAGATE: bool, E, T> Unpin for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>
impl<const AUTO_PROPAGATE: bool, E, T> UnwindSafe for PropagateEntityTrigger<AUTO_PROPAGATE, E, T>where
E: UnwindSafe,
T: UnwindSafe,
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