Struct MessageRegistry 

pub struct MessageRegistry {
    pub should_update: ShouldUpdateMessages,
    /* private fields */
}

A registry of all of the Messages in the World, used by message_update_system to update all of the messages.

Fields

should_update: ShouldUpdateMessages

Should the messages be updated?

This field is generally automatically updated by the signal_message_update_system.

Implementations

impl MessageRegistry

pub fn register_message<T: Message>(world: &mut World)

Registers a message type to be updated in a given World

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

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

Updates all of the registered messages in the World.

pub fn deregister_messages<T: Message>(world: &mut World)

Removes a message from the world and its associated MessageRegistry.

Trait Implementations

impl Component for MessageRegistry

where Self: Send + Sync + 'static,

const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::SparseSet

A constant indicating the storage type used for this component.

type Mutability = Mutable

A marker type to assist Bevy with determining if this component is mutable, or immutable. Mutable components will have Component<Mutability = Mutable>, while immutable components will instead have Component<Mutability = Immutable>.

fn register_required_components( _requiree: ComponentId, required_components: &mut RequiredComponentsRegistrator<'_, '_>, )

Registers required components.

fn clone_behavior() -> ComponentCloneBehavior

Called when registering this component, allowing to override clone function (or disable cloning altogether) for this component.

fn relationship_accessor() -> Option<ComponentRelationshipAccessor<Self>>

Returns ComponentRelationshipAccessor required for working with relationships in dynamic contexts.

fn on_add() -> Option<ComponentHook>

Gets the on_add ComponentHook for this Component if one is defined.

fn on_insert() -> Option<ComponentHook>

Gets the on_insert ComponentHook for this Component if one is defined.

fn on_discard() -> Option<ComponentHook>

Gets the on_discard ComponentHook for this Component if one is defined.

fn on_remove() -> Option<ComponentHook>

Gets the on_remove ComponentHook for this Component if one is defined.

fn on_despawn() -> Option<ComponentHook>

Gets the on_despawn ComponentHook for this Component if one is defined.

fn map_entities<E: EntityMapper>(_this: &mut Self, _mapper: &mut E)

Maps the entities on this component using the given EntityMapper. This is used to remap entities in contexts like scenes and entity cloning. When deriving Component, this is populated by annotating fields containing entities with #[entities]

impl Default for MessageRegistry

fn default() -> MessageRegistry

Returns the “default value” for a type.

impl Resource for MessageRegistry

where Self: Send + Sync + 'static,