Module component

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Types for declaring and storing Components.

Structs§

ComponentDescriptor: A value describing a component or resource, which may or may not correspond to a Rust type.
ComponentHooks: World-mutating functions that run as part of lifecycle events of a Component.
ComponentId: A value which uniquely identifies the type of a Component or Resource within a World.
ComponentIdFor: A SystemParam that provides access to the ComponentId for a specific component type.
ComponentInfo: Stores metadata for a type of component or resource stored in a specific World.
ComponentTicks: Records when a component or resource was added and when it was last mutably dereferenced (or added).
Components: Stores metadata associated with each kind of Component in a given World.
RequiredComponent: Metadata associated with a required component. See Component for details.
RequiredComponentConstructorNon-track_change_detection: A Required Component constructor. See Component for details.
RequiredComponents: The collection of metadata for components that are required for a given component.
Tick: A value that tracks when a system ran relative to other systems. This is used to power change detection.
TickCells: Interior-mutable access to the Ticks for a single component or resource.

RequiredComponentsError: An error returned when the registration of a required component fails.
StorageType: The storage used for a specific component type.

ComponentHook: The type used for Component lifecycle hooks such as on_add, on_insert or on_remove