Struct bevy_ecs::event::EventRegistry

pub struct EventRegistry {
    pub should_update: ShouldUpdateEvents,
    /* private fields */
}

A registry of all of the Events in the World, used by event_update_system to update all of the events.

Fields

should_update: ShouldUpdateEvents

Should the events be updated?

This field is generally automatically updated by the signal_event_update_system.

Implementations

impl EventRegistry

pub fn register_event<T: Event>(world: &mut World)

Registers an event type to be updated in a given World

If no instance of the EventRegistry exists in the world, this will add one - otherwise it will use the existing instance.

pub fn deregister_events<T: Event>(world: &mut World)

Removes an event from the world and it’s associated EventRegistry.

pub fn run_updates(&mut self, world: &mut World, last_change_tick: Tick)

Updates all of the registered events in the World.

Trait Implementations

impl Default for EventRegistry

fn default() -> EventRegistry

Returns the “default value” for a type.

impl Resource for EventRegistry

where Self: Send + Sync + 'static,