pub enum SceneUpdateResult<SR: Clone + PartialEq + Debug, SN: Clone + PartialEq + Debug> {
    Nothing,
    Push(bool, SN),
    Pop(Option<SR>),
}
Expand description

When a scene wants to add or remove a scene from the stack it should return Push or Pop from Scene.update

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Nothing

Do nothing, the current scene remains the foreground scene

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Push(bool, SN)

Open a child scene

Arguments

  • 0 bool - If true this scene will be closed as well as opening the new scene
  • 1 SN - Data for SceneSwitcher so it can create the new scene
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Pop(Option<SR>)

Close this scene, data may be included to be returned to the parent scene

Trait Implementations§

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impl<SR: Clone + Clone + PartialEq + Debug, SN: Clone + Clone + PartialEq + Debug> Clone for SceneUpdateResult<SR, SN>

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fn clone(&self) -> SceneUpdateResult<SR, SN>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<SR: Debug + Clone + PartialEq + Debug, SN: Debug + Clone + PartialEq + Debug> Debug for SceneUpdateResult<SR, SN>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<SR: PartialEq + Clone + PartialEq + Debug, SN: PartialEq + Clone + PartialEq + Debug> PartialEq<SceneUpdateResult<SR, SN>> for SceneUpdateResult<SR, SN>

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fn eq(&self, other: &SceneUpdateResult<SR, SN>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<SR: Clone + PartialEq + Debug, SN: Clone + PartialEq + Debug> StructuralPartialEq for SceneUpdateResult<SR, SN>

Auto Trait Implementations§

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impl<SR, SN> RefUnwindSafe for SceneUpdateResult<SR, SN>where SN: RefUnwindSafe, SR: RefUnwindSafe,

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impl<SR, SN> Send for SceneUpdateResult<SR, SN>where SN: Send, SR: Send,

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impl<SR, SN> Sync for SceneUpdateResult<SR, SN>where SN: Sync, SR: Sync,

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impl<SR, SN> Unpin for SceneUpdateResult<SR, SN>where SN: Unpin, SR: Unpin,

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impl<SR, SN> UnwindSafe for SceneUpdateResult<SR, SN>where SN: UnwindSafe, SR: UnwindSafe,

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impl<T> Any for Twhere 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> AnyToAny for Twhere T: 'static,

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fn as_any(&self) -> &(dyn Any + 'static)

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impl<T> Borrow<T> for Twhere 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 Twhere 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> 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 Twhere 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> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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.
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impl<T> Upcast<T> for T

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fn upcast(&self) -> Option<&T>