oxygengine_core::ecs

Struct Changes

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pub struct Changes<'a, T>
where
    T: Component + Clone + PartialEq,
{ /* private fields */ }
Expand description

Collection of iterators over changes in T components

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impl<'a, T> Changes<'a, T>
where T: Component + Clone + PartialEq,

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pub fn added(&mut self) -> impl ExactSizeIterator

Iterate over entities which were given a new T component after the preceding track call, including newly spawned entities

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pub fn changed(&mut self) -> impl Iterator<Item = (Entity, T, &T)>

Iterate over (entity, old, new) for entities whose T component has changed according to PartialEq after the preceding track call

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pub fn removed(&mut self) -> impl ExactSizeIterator

Iterate over entities which lost their T component after the preceding track call, excluding any entities which were despawned

Trait Implementations§

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impl<'a, T> Drop for Changes<'a, T>
where T: Component + Clone + PartialEq,

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a, T> Freeze for Changes<'a, T>

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impl<'a, T> RefUnwindSafe for Changes<'a, T>
where T: RefUnwindSafe,

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impl<'a, T> !Send for Changes<'a, T>

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impl<'a, T> !Sync for Changes<'a, T>

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impl<'a, T> Unpin for Changes<'a, T>

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impl<'a, T> !UnwindSafe for Changes<'a, T>

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

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

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fn borrow(&self) -> &T

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> Finalize for T

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unsafe fn finalize_raw(data: *mut ())

Safety Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.