Enum bevy::ecs::schedule::SystemDescriptor
[−]pub enum SystemDescriptor {
Parallel(ParallelSystemDescriptor),
Exclusive(ExclusiveSystemDescriptor),
}
Expand description
Encapsulates a system and information on when it run in a SystemStage
.
Systems can be inserted into 4 different groups within the stage:
- Parallel, accepts non-exclusive systems.
- At start, accepts exclusive systems; runs before parallel systems.
- Before commands, accepts exclusive systems; runs after parallel systems, but before their command buffers are applied.
- At end, accepts exclusive systems; runs after parallel systems’ command buffers have been applied.
Systems can have one or more labels attached to them; other systems in the same group
can then specify that they have to run before or after systems with that label using the
before
and after
methods.
Example
#[derive(SystemLabel, Debug, Clone, PartialEq, Eq, Hash)]
struct Something;
SystemStage::parallel()
.with_system(do_something.label(Something))
.with_system(do_the_other_thing.after(Something))
.with_system(do_something_else.exclusive_system().at_end());
Variants
Parallel(ParallelSystemDescriptor)
Exclusive(ExclusiveSystemDescriptor)
Trait Implementations
impl IntoSystemDescriptor<()> for SystemDescriptor
impl IntoSystemDescriptor<()> for SystemDescriptor
fn into_descriptor(self) -> SystemDescriptor
Auto Trait Implementations
impl !RefUnwindSafe for SystemDescriptor
impl Send for SystemDescriptor
impl Sync for SystemDescriptor
impl Unpin for SystemDescriptor
impl !UnwindSafe for SystemDescriptor
Blanket Implementations
impl<T, U> AsBindGroupShaderType<U> for T where
U: ShaderType,
&'a T: for<'a> Into<U>,
impl<T, U> AsBindGroupShaderType<U> for T where
U: ShaderType,
&'a T: for<'a> Into<U>,
fn as_bind_group_shader_type(
&self,
_images: &HashMap<Handle<Image>, <Image as RenderAsset>::PreparedAsset, RandomState, Global>
) -> U
fn as_bind_group_shader_type(
&self,
_images: &HashMap<Handle<Image>, <Image as RenderAsset>::PreparedAsset, RandomState, Global>
) -> U
Return the T
ShaderType
for self
. When used in AsBindGroup
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T: ?Sized,
impl<T> BorrowMut<T> for T where
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fn borrow_mut(&mut self) -> &mut T
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T: Any,
impl<T> Downcast for T where
T: Any,
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) to Box<dyn Any>
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can
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implements Trait
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fn as_any(&self) -> &(dyn Any + 'static)
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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. This is needed since Rust cannot
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sourceimpl<T> Instrument for T
impl<T> Instrument for T
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T: Future, type Output = <T as Future>::Output;
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sourcefn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
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where
S: Into<Dispatch>,
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fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
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