struct · iOS 26.0+ · SDK 27.1
@frozen struct ObservableAn observable interface to an entity's properties and components, enabling reactive updates using Swift's Observation framework. When you access properties in this structure, they participate in Observation. This means that the app notifies obersvers when they change in value. Each of these properties passes through to the underlying entity's corresponding properties, so modifications of them modify the entity's corresponding property.
get components(): Promise<Entity_Observable_Components>var components: Entity.Observable.Components { get set }The components an entity manages, enabling observation of their presence and values. This property provides a direct interface to the entity's components. When you read a component through this property's accessor, it marks that component type as accessed for observation. Observers trigger when you modify any accessed component.
setComponents(value: Entity_Observable_Components): Promise<void>var components: Entity.Observable.Components { get set }The components an entity manages, enabling observation of their presence and values. This property provides a direct interface to the entity's components. When you read a component through this property's accessor, it marks that component type as accessed for observation. Observers trigger when you modify any accessed component.
get orientation(): Promise<SDKHandle>var orientation: simd_quatf { get set }The entity's local orientation, allowing observation of its rotation.
setOrientation(value: SDKHandle): Promise<void>var orientation: simd_quatf { get set }The entity's local orientation, allowing observation of its rotation.
get name(): Promise<string>var name: String { get set }The entity's name, enabling observation of its changes.
setName(value: string): Promise<void>var name: String { get set }The entity's name, enabling observation of its changes.
get scale(): Promise<SDKHandle>var scale: SIMD3<Float> { get set }The entity's local scale, enabling observation of its size.
setScale(value: SDKHandle): Promise<void>var scale: SIMD3<Float> { get set }The entity's local scale, enabling observation of its size.
get children(): Promise<Entity_ChildCollection>var children: Entity.ChildCollection { get set }The collection of child entities, allowing observation of its contents
setChildren(value: Entity_ChildCollection): Promise<void>var children: Entity.ChildCollection { get set }The collection of child entities, allowing observation of its contents
get position(): Promise<SDKHandle>var position: SIMD3<Float> { get set }The entity's local position, allowing observation of its translation.
setPosition(value: SDKHandle): Promise<void>var position: SIMD3<Float> { get set }The entity's local position, allowing observation of its translation.
get isEnabled(): Promise<boolean>var isEnabled: Bool { get set }A Boolean value that indicates whether the entity is enabled in the scene, allowing observation of its state. For more information, see ``Entity/isEnabled``.
setIsEnabled(value: boolean): Promise<void>var isEnabled: Bool { get set }A Boolean value that indicates whether the entity is enabled in the scene, allowing observation of its state. For more information, see ``Entity/isEnabled``.
get transform(): Promise<Transform>var transform: Transform { get set }The entity's position, rotation, and scale, enabling observation of its complete spatial state.
setTransform(value: Transform): Promise<void>var transform: Transform { get set }The entity's position, rotation, and scale, enabling observation of its complete spatial state.
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