Struct Query 

pub struct Query<'w, Q>
where
    Q: WorldQuery + ?Sized,
{ /* private fields */ }

Implementations

impl<'w, Q> Query<'w, Q>

where Q: WorldQuery,

pub fn new(world: &'w World) -> Option<Query<'w, Q>>

pub fn new_cached(world: &'w mut World) -> Option<Query<'w, Q>>

pub fn iter<'a>(&'a self) -> QueryIter<'a, 'w, Q>

pub fn iter_mut<'a>(&'a mut self) -> QueryIter<'a, 'w, Q>

pub fn iter_chunks<'a>(&'a self) -> QueryChunksIter<'a, 'w, Q>

pub fn iter_chunks_mut<'a>(&'a mut self) -> QueryChunksIter<'a, 'w, Q>

pub fn get(&self, entity_id: u32) -> Option<<Q as WorldQuery>::Item<'_>>

pub fn get_mut(&self, entity_id: u32) -> Option<<Q as WorldQuery>::Item<'_>>

pub fn entity_count(&self) -> usize

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn contains(&self, entity_id: u32) -> bool

Belirli bir entity’nin bu query’ye ait olup olmadığını kontrol eder.

pub fn entities<'a>(&'a self) -> impl Iterator<Item = u32> + 'a

pub fn par_for_each<F>(&self, func: F)

where F: Fn((u32, <Q as WorldQuery>::Item<'_>)) + Send + Sync,

İş parçacığı havuzu (Work-Stealing) ile çalışan lock-free paralel iterasyon

pub fn par_for_each_mut<F>(&mut self, func: F)

where F: Fn((u32, <Q as WorldQuery>::Item<'_>)) + Send + Sync,

Trait Implementations

impl<Q> SystemParam for Query<'static, Q>

where Q: WorldQuery + 'static,

type Item<'w> = Query<'w, Q>

fn fetch<'w>( world: &'w World, _dt: f32, ) -> Result<<Query<'static, Q> as SystemParam>::Item<'w>, SystemParamFetchError>

fn get_access_info(info: &mut AccessInfo)