Struct ComponentRegistry

pub struct ComponentRegistry(/* private fields */);

Store component factories. This is how components are created.

Implementations

impl ComponentRegistry

pub fn new() -> Self

pub fn add_component<S: State>( &mut self, id: ComponentBlueprintId, component: impl Component + 'static, state: S, )

Both add_component and add_prototype are using Slab::insert_at.

This is fine as the component ids are generated at the same time.

pub fn add_prototype<FC, FS, C, S>( &mut self, id: ComponentBlueprintId, proto: FC, state: FS, )

where FC: 'static + Fn() -> C, FS: 'static + FnMut() -> S, C: Component + 'static, S: State + 'static,

pub fn get( &mut self, id: ComponentBlueprintId, ) -> Option<(ComponentKind, Box<dyn AnyComponent>, Box<dyn State>)>

Panics

Panics if the component isn’t registered. This shouldn’t happen as the statement eval should catch this.

pub fn return_component( &mut self, id: ComponentBlueprintId, current_component: Box<dyn AnyComponent>, current_state: Box<dyn State>, )

Return a component back to the registry.

Panics

Panics if the component entry doesn’t exist or if the entry is for a prototype.