Trait bevy::ecs::system::RunSystem

pub trait RunSystem: 'static + Send + Sync {
    type Param: SystemParam;
    fn run(
        param: <<Self::Param as SystemParam>::Fetch as SystemParamFetch<'_, '_>>::Item
    );

    fn system(world: &mut World) -> ParamSystem<Self::Param> { ... }
}

A trait for defining systems with a SystemParam associated type.

This facilitates the creation of systems that are generic over some trait and that use that trait’s associated types as SystemParams.

Associated Types

type Param: SystemParam

The SystemParam type passed to the system when it runs.

Required methods

fn run(
    param: <<Self::Param as SystemParam>::Fetch as SystemParamFetch<'_, '_>>::Item
)

Runs the system.

Provided methods

fn system(world: &mut World) -> ParamSystem<Self::Param>

Creates a concrete instance of the system for the specified World.

Implementors

impl<C> RunSystem for ExtractComponentSystem<C> where
    C: ExtractComponent,
    <<C as ExtractComponent>::Filter as WorldQuery>::Fetch: FilterFetch, 

type Param = (Commands<'static, 'static>, Local<'static, usize>, Query<'static, 'static, (Entity, <C as ExtractComponent>::Query), <C as ExtractComponent>::Filter>)

impl<R> RunSystem for PrepareAssetSystem<R> where
    R: RenderAsset, 

type Param = (ResMut<'static, ExtractedAssets<R>>, ResMut<'static, HashMap<Handle<R>, <R as RenderAsset>::PreparedAsset, RandomState>>, ResMut<'static, PrepareNextFrameAssets<R>>, <R as RenderAsset>::Param)