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Events

Struct Events 

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pub struct Events<T> { /* private fields */ }
Expand description

Gizmo ECS Event System — Double-buffered olay kuyruğu.

Her frame’de update() çağrıldığında, önceki frame’in eventleri atılır ve mevcut frame’in eventleri “önceki” konumuna taşınır. Bu sayede:

  • Yazarlar (send) her zaman current buffer’a yazar.
  • Okuyucular (iter) her zaman previous buffer’dan okur (non-destructive).
  • Birden fazla sistem aynı eventleri bağımsız olarak okuyabilir.

§Kullanım

// Kayıt (App seviyesinde):
app.add_event::<CollisionEvent>();

// Olay gönderme (herhangi bir sistem):
world.get_resource_mut::<Events<CollisionEvent>>().unwrap().send(CollisionEvent(..));

// Olay okuma (herhangi bir sistem, non-destructive):
let events = world.get_resource::<Events<CollisionEvent>>().unwrap();
for event in events.iter() {
    tracing::info!("Çarpışma oldu: {:?}", event);
}

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impl<T> Events<T>

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pub fn new() -> Events<T>

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pub fn send(&mut self, event: T)

Yeni bir event gönderir (mevcut frame’in buffer’ına yazar).

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pub fn push(&mut self, event: T)

Geriye dönük uyumluluk — send() ile aynı.

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pub fn update(&mut self)

Frame sonu: önceki frame’in eventlerini temizler, mevcut frame’i önceki konuma taşır.

Bu metot her frame sonunda bir kez çağrılmalıdır — App::add_event() bunu otomatik olarak yapar.

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pub fn iter(&self) -> impl Iterator<Item = &T>

Önceki frame’in eventlerini okumak için non-destructive iterator. Birden fazla sistem aynı eventleri bağımsız olarak okuyabilir.

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pub fn len(&self) -> usize

Önceki frame’deki event sayısı.

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pub fn is_empty(&self) -> bool

Önceki frame’de event var mı?

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pub fn clear(&mut self)

Tüm eventleri (hem mevcut hem önceki) temizler.

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pub fn drain(&mut self) -> IntoIter<T>

Eventleri tüketmek için destructive iterator. Dikkat: Bu metot tüm eventleri (önceki frame) tüketir. Birden fazla okuyucu varsa diğer okuyucular eventleri kaçırır. Mümkünse iter() tercih edin.

Trait Implementations§

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impl<T> Default for Events<T>

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fn default() -> Events<T>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<T> Freeze for Events<T>

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impl<T> RefUnwindSafe for Events<T>
where T: RefUnwindSafe,

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impl<T> Send for Events<T>
where T: Send,

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impl<T> Sync for Events<T>
where T: Sync,

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impl<T> Unpin for Events<T>
where T: Unpin,

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impl<T> UnsafeUnpin for Events<T>

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impl<T> UnwindSafe for Events<T>
where T: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<T> Downcast for T
where T: Any,

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Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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where T: Any + Send + Sync,

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