Trait ScheduleLabel 

pub trait ScheduleLabel:
    Send
    + Sync
    + Debug
    + DynEq
    + DynHash {
    // Required method
    fn dyn_clone(&self) -> Box<dyn ScheduleLabel>;

    // Provided method
    fn intern(&self) -> Interned<dyn ScheduleLabel>
       where Self: Sized { ... }
}

A strongly-typed class of labels used to identify a Schedule.

Each schedule in a World has a unique schedule label value, and schedules can be automatically created from labels via Schedules::add_systems().

Defining new schedule labels

By default, you should use Bevy’s premade schedule labels which implement this trait. If you are using bevy_ecs directly or if you need to run a group of systems outside the existing schedules, you may define your own schedule labels by using #[derive(ScheduleLabel)].

use bevy_ecs::prelude::*;
use bevy_ecs::schedule::ScheduleLabel;

// Declare a new schedule label.
#[derive(ScheduleLabel, Clone, Debug, PartialEq, Eq, Hash, Default)]
struct Update;

let mut world = World::new();

// Add a system to the schedule with that label (creating it automatically).
fn a_system_function() {}
world.get_resource_or_init::<Schedules>().add_systems(Update, a_system_function);

// Run the schedule, and therefore run the system.
world.run_schedule(Update);

Required Methods

fn dyn_clone(&self) -> Box<dyn ScheduleLabel>

Clones this ScheduleLabel.

Provided Methods

fn intern(&self) -> Interned<dyn ScheduleLabel>

where Self: Sized,

Returns an Interned value corresponding to self.

Trait Implementations

impl Hash for dyn ScheduleLabel

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

impl Internable for dyn ScheduleLabel

fn leak(&self) -> &'static dyn ScheduleLabel

Creates a static reference to self, possibly leaking memory.

fn ref_eq(&self, other: &(dyn ScheduleLabel + 'static)) -> bool

Returns true if the two references point to the same value.

fn ref_hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds the reference to the hasher.

impl PartialEq for dyn ScheduleLabel

fn eq(&self, other: &(dyn ScheduleLabel + 'static)) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for dyn ScheduleLabel

Implementors

impl ScheduleLabel for FixedMain

where FixedMain: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for ExtractSchedule

where ExtractSchedule: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for First

where First: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for FixedFirst

where FixedFirst: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for FixedLast

where FixedLast: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for FixedPostUpdate

where FixedPostUpdate: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for FixedPreUpdate

where FixedPreUpdate: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for FixedUpdate

where FixedUpdate: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for Last

where Last: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for Main

where Main: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for PostStartup

where PostStartup: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for PostUpdate

where PostUpdate: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for PreStartup

where PreStartup: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for PreUpdate

where PreUpdate: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for RunFixedMainLoop

where RunFixedMainLoop: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for SpawnScene

where SpawnScene: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for Startup

where Startup: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for Update

where Update: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for Render

where Render: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for RenderStartup

where RenderStartup: 'static + Send + Sync + Clone + Eq + Debug + Hash,

impl ScheduleLabel for Interned<dyn ScheduleLabel>