Struct FilteredResourcesParamBuilder

pub struct FilteredResourcesParamBuilder<T>(/* private fields */);

A SystemParamBuilder for a FilteredResources. See the FilteredResources docs for examples.

Implementations

impl<T> FilteredResourcesParamBuilder<T>

pub fn new(f: T) -> Self

where T: FnOnce(&mut FilteredResourcesBuilder<'_>),

Creates a SystemParamBuilder for a FilteredResources that accepts a callback to configure the FilteredResourcesBuilder.

impl<'a> FilteredResourcesParamBuilder<Box<dyn FnOnce(&mut FilteredResourcesBuilder<'_>) + 'a>>

pub fn new_box(f: impl FnOnce(&mut FilteredResourcesBuilder<'_>) + 'a) -> Self

Creates a SystemParamBuilder for a FilteredResources that accepts a callback to configure the FilteredResourcesBuilder. This boxes the callback so that it has a common type.

Trait Implementations

impl<'w, 's, T: FnOnce(&mut FilteredResourcesBuilder<'_>)> SystemParamBuilder<FilteredResources<'w, 's>> for FilteredResourcesParamBuilder<T>

fn build( self, world: &mut World, meta: &mut SystemMeta, ) -> <FilteredResources<'w, 's> as SystemParam>::State

Registers any World access used by this SystemParam and creates a new instance of this param’s State.

fn build_state(self, world: &mut World) -> SystemState<P>

Create a SystemState from a SystemParamBuilder. To create a system, call SystemState::build_system on the result.