Struct EntityComponentsTrigger 

pub struct EntityComponentsTrigger<'a> {
    pub components: &'a [ComponentId],
}

An EntityEvent Trigger that, in addition to behaving like a normal EntityTrigger, also runs observers that watch for components that match the slice of ComponentIds referenced in EntityComponentsTrigger. This includes both global observers of those components and “entity scoped” observers that watch the EntityEvent::event_target.

This is used by Bevy’s built-in lifecycle events.

Fields

components: &'a [ComponentId]

All of the components whose observers were triggered together for the target entity. For example, if components A and B are added together, producing the Add event, this will contain the ComponentId for both A and B.

Trait Implementations

impl<'a> Default for EntityComponentsTrigger<'a>

fn default() -> EntityComponentsTrigger<'a>

Returns the “default value” for a type.

impl<'a, E: EntityEvent + Event<Trigger<'a> = EntityComponentsTrigger<'a>>> Trigger<E> for EntityComponentsTrigger<'a>

unsafe fn trigger( &mut self, world: DeferredWorld<'_>, observers: &CachedObservers, trigger_context: &TriggerContext, event: &mut E, )

Trigger the given event, running every Observer that matches the event, as defined by this Trigger and the state stored on self.