Struct bevy_scene_hook::HookedSceneState

pub struct HookedSceneState<'w, 's, M: Component> { /* private fields */ }

Convenience parameter to query if a scene marked with M has been loaded.

Implementations

impl<'w, 's, T: Component> HookedSceneState<'w, 's, T>

pub fn is_loaded(&self) -> bool

Trait Implementations

impl<'w, 's, M: Component> SystemParam for HookedSceneState<'w, 's, M>

type State = FetchState<'static, 'static, M>

Used to store data which persists across invocations of a system.

type Item<'_w, '_s> = HookedSceneState<'_w, '_s, M>

The item type returned when constructing this system param. The value of this associated type should be Self, instantiated with new lifetimes.

fn init_state(world: &mut World, system_meta: &mut SystemMeta) -> Self::State

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

fn new_archetype( state: &mut Self::State, archetype: &Archetype, system_meta: &mut SystemMeta )

For the specified [Archetype], registers the components accessed by this [SystemParam] (if applicable).

fn apply(state: &mut Self::State, system_meta: &SystemMeta, world: &mut World)

Applies any deferred mutations stored in this [SystemParam]’s state. This is used to apply Commands during apply_system_buffers.

unsafe fn get_param<'w2, 's2>( state: &'s2 mut Self::State, system_meta: &SystemMeta, world: &'w2 World, change_tick: u32 ) -> Self::Item<'w2, 's2>

Safety

impl<'w, 's, M: Component> ReadOnlySystemParam for HookedSceneState<'w, 's, M>where Query<'w, 's, (), (With<M>, With<SceneHooked>)>: ReadOnlySystemParam,