SystemTrigger

seldom_state::trigger

Struct SystemTrigger 

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pub struct SystemTrigger<T: ReadOnlySystem>(/* private fields */);
Expand description

The trigger form of a system. See IntoSystem.

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impl<T: ReadOnlySystem> EntityTrigger for SystemTrigger<T>
where T::In: TriggerIn, T::Out: TriggerOut,

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type Out = <T as System>::Out

The trigger’s output. See TriggerOut.
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fn init(&mut self, world: &mut World)

Initializes/resets this trigger. Runs every time the state machine transitions.
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fn check(&mut self, entity: Entity, world: &World) -> Result<Self::Out>

Checks whether the state machine should transition

Auto Trait Implementations§

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impl<T> Freeze for SystemTrigger<T>
where T: Freeze,

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

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impl<T> Send for SystemTrigger<T>

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impl<T> Sync for SystemTrigger<T>

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

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

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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

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

Converts Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Converts &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Converts &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSend for T
where T: Any + Send,

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fn into_any_send(self: Box<T>) -> Box<dyn Any + Send>

Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> IntoResult<T> for T

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fn into_result(self) -> Result<T, RunSystemError>

Converts this type into the system output type.
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impl<T> IntoTrigger<()> for T
where T: EntityTrigger,

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type Trigger = T

The EntityTrigger type that this is converted into
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fn into_trigger(self) -> T

Convert into an EntityTrigger
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fn not( self, ) -> impl EntityTrigger<Out = Result<<<Self::Trigger as EntityTrigger>::Out as TriggerOut>::Err, <<Self::Trigger as EntityTrigger>::Out as TriggerOut>::Ok>>

Negates the trigger. Do not override.
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fn and<Marker2, T: IntoTrigger<Marker2>>( self, other: T, ) -> impl EntityTrigger<Out = Result<(<<Self::Trigger as EntityTrigger>::Out as TriggerOut>::Ok, <<T::Trigger as EntityTrigger>::Out as TriggerOut>::Ok), Either<<<Self::Trigger as EntityTrigger>::Out as TriggerOut>::Err, <<T::Trigger as EntityTrigger>::Out as TriggerOut>::Err>>>

Combines these triggers by logical AND. Do not override.
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fn ignore_and<Marker2, T: IntoTrigger<Marker2>>( self, other: T, ) -> impl EntityTrigger<Out = Result<<<T::Trigger as EntityTrigger>::Out as TriggerOut>::Ok, Either<<<Self::Trigger as EntityTrigger>::Out as TriggerOut>::Err, <<T::Trigger as EntityTrigger>::Out as TriggerOut>::Err>>>

Combines these triggers by logical AND, discarding the output of the first. Do not override.
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fn or<Marker2, T: IntoTrigger<Marker2>>( self, other: T, ) -> impl EntityTrigger<Out = Result<Either<<<Self::Trigger as EntityTrigger>::Out as TriggerOut>::Ok, <<T::Trigger as EntityTrigger>::Out as TriggerOut>::Ok>, (<<Self::Trigger as EntityTrigger>::Out as TriggerOut>::Err, <<T::Trigger as EntityTrigger>::Out as TriggerOut>::Err)>>

Combines these triggers by logical OR. Do not override.
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impl<A> Is for A
where A: Any,

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fn is<T>() -> bool
where T: Any,

Checks if the current type “is” another type, using a TypeId equality comparison. This is most useful in the context of generic logic. Read more
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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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ConditionalSend for T
where T: Send,