Module observer

Expand description

Types for creating and storing Observers

Structs§

CachedComponentObservers: Collection of ObserverRunner for Observer registered to a particular trigger targeted at a specific component.
CachedObservers: Collection of ObserverRunner for Observer registered to a particular trigger.
ObservedBy: Tracks a list of entity observers for the Entity ObservedBy is added to.
Observer: An Observer system. Add this Component to an Entity to turn it into an “observer”.
ObserverDescriptor: A description of what an Observer observes.
ObserverState: Contains Observer information. This defines how a given observer behaves. It is the “source of truth” for a given observer entity’s behavior.
ObserverTrigger: Event trigger metadata for a given Observer,
Observers: Metadata for observers. Stores a cache mapping trigger ids to the registered observers.
Trigger: Type containing triggered Event information for a given run of an Observer. This contains the Event data itself. If it was triggered for a specific Entity, it includes that as well. It also contains event propagation information. See Trigger::propagate for more information.

TriggerTargets: Represents a collection of targets for a specific Trigger of an Event. Targets can be of type Entity or ComponentId.

ObserverRunner: Type for function that is run when an observer is triggered.