mirror of
https://github.com/bevyengine/bevy
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Rename apply_system_buffers to apply_deferred (#8726)
# Objective - `apply_system_buffers` is an unhelpful name: it introduces a new internal-only concept - this is particularly rough for beginners as reasoning about how commands work is a critical stumbling block ## Solution - rename `apply_system_buffers` to the more descriptive `apply_deferred` - rename related fields, arguments and methods in the internals fo bevy_ecs for consistency - update the docs ## Changelog `apply_system_buffers` has been renamed to `apply_deferred`, to more clearly communicate its intent and relation to `Deferred` system parameters like `Commands`. ## Migration Guide - `apply_system_buffers` has been renamed to `apply_deferred` - the `apply_system_buffers` method on the `System` trait has been renamed to `apply_deferred` - the `is_apply_system_buffers` function has been replaced by `is_apply_deferred` - `Executor::set_apply_final_buffers` is now `Executor::set_apply_final_deferred` - `Schedule::apply_system_buffers` is now `Schedule::apply_deferred` --------- Co-authored-by: JoJoJet <21144246+JoJoJet@users.noreply.github.com>
This commit is contained in:
parent
6b4c7d5d88
commit
cbd4abf0fc
24 changed files with 102 additions and 107 deletions
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@ -1043,12 +1043,12 @@ category = "ECS (Entity Component System)"
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wasm = false
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[[example]]
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name = "apply_system_buffers"
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path = "examples/ecs/apply_system_buffers.rs"
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name = "apply_deferred"
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path = "examples/ecs/apply_deferred.rs"
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[package.metadata.example.apply_system_buffers]
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[package.metadata.example.apply_deferred]
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name = "Apply System Buffers"
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description = "Show how to use `apply_system_buffers` system"
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description = "Show how to use `apply_deferred` system"
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category = "ECS (Entity Component System)"
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wasm = false
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@ -316,7 +316,7 @@ impl<'a, 'w, 's, E: Event> IntoIterator for &'a mut EventReader<'w, 's, E> {
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/// // custom events to unknown 3rd party plugins (modding API).
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/// //
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/// // NOTE: the event won't actually be sent until commands get applied during
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/// // apply_system_buffers.
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/// // apply_deferred.
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/// commands.add(|w: &mut World| {
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/// w.send_event(MyEvent);
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/// });
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@ -39,7 +39,7 @@ pub mod prelude {
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query::{Added, AnyOf, Changed, Or, QueryState, With, Without},
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removal_detection::RemovedComponents,
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schedule::{
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apply_state_transition, apply_system_buffers, common_conditions::*, Condition,
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apply_deferred, apply_state_transition, common_conditions::*, Condition,
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IntoSystemConfigs, IntoSystemSet, IntoSystemSetConfig, IntoSystemSetConfigs, NextState,
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OnEnter, OnExit, OnTransition, Schedule, Schedules, State, States, SystemSet,
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},
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@ -1042,8 +1042,8 @@ where
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!self.condition.run(input, world)
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}
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fn apply_buffers(&mut self, world: &mut World) {
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self.condition.apply_buffers(world);
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fn apply_deferred(&mut self, world: &mut World) {
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self.condition.apply_deferred(world);
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}
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fn initialize(&mut self, world: &mut World) {
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@ -19,7 +19,7 @@ pub(super) trait SystemExecutor: Send + Sync {
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fn kind(&self) -> ExecutorKind;
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fn init(&mut self, schedule: &SystemSchedule);
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fn run(&mut self, schedule: &mut SystemSchedule, world: &mut World);
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fn set_apply_final_buffers(&mut self, value: bool);
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fn set_apply_final_deferred(&mut self, value: bool);
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}
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/// Specifies how a [`Schedule`](super::Schedule) will be run.
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@ -35,7 +35,7 @@ pub enum ExecutorKind {
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/// other things, or just trying minimize overhead.
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#[cfg_attr(target_arch = "wasm32", default)]
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SingleThreaded,
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/// Like [`SingleThreaded`](ExecutorKind::SingleThreaded) but calls [`apply_buffers`](crate::system::System::apply_buffers)
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/// Like [`SingleThreaded`](ExecutorKind::SingleThreaded) but calls [`apply_deferred`](crate::system::System::apply_deferred)
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/// immediately after running each system.
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Simple,
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/// Runs the schedule using a thread pool. Non-conflicting systems can run in parallel.
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@ -77,18 +77,19 @@ impl SystemSchedule {
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}
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}
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/// Instructs the executor to call [`apply_buffers`](crate::system::System::apply_buffers)
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/// on the systems that have run but not applied their buffers.
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/// Instructs the executor to call [`System::apply_deferred`](crate::system::System::apply_deferred)
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/// on the systems that have run but not applied their [`Deferred`](crate::system::Deferred) system parameters (like [`Commands`](crate::prelude::Commands)) or other system buffers.
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///
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/// **Notes**
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/// - This function (currently) does nothing if it's called manually or wrapped inside a [`PipeSystem`](crate::system::PipeSystem).
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/// - Modifying a [`Schedule`](super::Schedule) may change the order buffers are applied.
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#[doc(alias = "apply_system_buffers")]
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#[allow(unused_variables)]
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pub fn apply_system_buffers(world: &mut World) {}
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pub fn apply_deferred(world: &mut World) {}
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/// Returns `true` if the [`System`](crate::system::System) is an instance of [`apply_system_buffers`].
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pub(super) fn is_apply_system_buffers(system: &BoxedSystem) -> bool {
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/// Returns `true` if the [`System`](crate::system::System) is an instance of [`apply_deferred`].
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pub(super) fn is_apply_deferred(system: &BoxedSystem) -> bool {
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use std::any::Any;
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// deref to use `System::type_id` instead of `Any::type_id`
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system.as_ref().type_id() == apply_system_buffers.type_id()
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system.as_ref().type_id() == apply_deferred.type_id()
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}
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@ -17,9 +17,7 @@ use crate::{
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archetype::ArchetypeComponentId,
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prelude::Resource,
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query::Access,
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schedule::{
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is_apply_system_buffers, BoxedCondition, ExecutorKind, SystemExecutor, SystemSchedule,
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},
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schedule::{is_apply_deferred, BoxedCondition, ExecutorKind, SystemExecutor, SystemSchedule},
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system::BoxedSystem,
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world::{unsafe_world_cell::UnsafeWorldCell, World},
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};
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@ -108,8 +106,8 @@ pub struct MultiThreadedExecutor {
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completed_systems: FixedBitSet,
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/// Systems that have run but have not had their buffers applied.
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unapplied_systems: FixedBitSet,
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/// Setting when true applies system buffers after all systems have run
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apply_final_buffers: bool,
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/// Setting when true applies deferred system buffers after all systems have run
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apply_final_deferred: bool,
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/// When set, tells the executor that a thread has panicked.
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panic_payload: Arc<Mutex<Option<Box<dyn Any + Send>>>>,
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/// When set, stops the executor from running any more systems.
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@ -127,8 +125,8 @@ impl SystemExecutor for MultiThreadedExecutor {
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ExecutorKind::MultiThreaded
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}
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fn set_apply_final_buffers(&mut self, value: bool) {
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self.apply_final_buffers = value;
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fn set_apply_final_deferred(&mut self, value: bool) {
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self.apply_final_deferred = value;
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}
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fn init(&mut self, schedule: &SystemSchedule) {
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@ -230,10 +228,10 @@ impl SystemExecutor for MultiThreadedExecutor {
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},
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);
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if self.apply_final_buffers {
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if self.apply_final_deferred {
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// Do one final apply buffers after all systems have completed
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// Commands should be applied while on the scope's thread, not the executor's thread
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let res = apply_system_buffers(&self.unapplied_systems, systems, world);
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let res = apply_deferred(&self.unapplied_systems, systems, world);
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if let Err(payload) = res {
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let mut panic_payload = self.panic_payload.lock().unwrap();
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*panic_payload = Some(payload);
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@ -278,7 +276,7 @@ impl MultiThreadedExecutor {
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skipped_systems: FixedBitSet::new(),
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completed_systems: FixedBitSet::new(),
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unapplied_systems: FixedBitSet::new(),
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apply_final_buffers: true,
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apply_final_deferred: true,
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panic_payload: Arc::new(Mutex::new(None)),
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stop_spawning: false,
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}
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@ -556,14 +554,14 @@ impl MultiThreadedExecutor {
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let sender = self.sender.clone();
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let panic_payload = self.panic_payload.clone();
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if is_apply_system_buffers(system) {
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if is_apply_deferred(system) {
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// TODO: avoid allocation
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let unapplied_systems = self.unapplied_systems.clone();
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self.unapplied_systems.clear();
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let task = async move {
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#[cfg(feature = "trace")]
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let system_guard = system_span.enter();
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let res = apply_system_buffers(&unapplied_systems, systems, world);
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let res = apply_deferred(&unapplied_systems, systems, world);
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#[cfg(feature = "trace")]
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drop(system_guard);
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// tell the executor that the system finished
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@ -681,7 +679,7 @@ impl MultiThreadedExecutor {
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}
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}
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fn apply_system_buffers(
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fn apply_deferred(
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unapplied_systems: &FixedBitSet,
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systems: &[SyncUnsafeCell<BoxedSystem>],
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world: &mut World,
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@ -690,7 +688,7 @@ fn apply_system_buffers(
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// SAFETY: none of these systems are running, no other references exist
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let system = unsafe { &mut *systems[system_index].get() };
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let res = std::panic::catch_unwind(AssertUnwindSafe(|| {
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system.apply_buffers(world);
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system.apply_deferred(world);
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}));
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if let Err(payload) = res {
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eprintln!(
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@ -9,7 +9,7 @@ use crate::{
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};
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/// A variant of [`SingleThreadedExecutor`](crate::schedule::SingleThreadedExecutor) that calls
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/// [`apply_buffers`](crate::system::System::apply_buffers) immediately after running each system.
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/// [`apply_deferred`](crate::system::System::apply_deferred) immediately after running each system.
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#[derive(Default)]
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pub struct SimpleExecutor {
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/// Systems sets whose conditions have been evaluated.
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ExecutorKind::Simple
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}
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fn set_apply_final_buffers(&mut self, _: bool) {
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fn set_apply_final_deferred(&mut self, _: bool) {
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// do nothing. simple executor does not do a final sync
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}
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std::panic::resume_unwind(payload);
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}
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system.apply_buffers(world);
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system.apply_deferred(world);
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}
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self.evaluated_sets.clear();
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@ -4,9 +4,7 @@ use fixedbitset::FixedBitSet;
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use std::panic::AssertUnwindSafe;
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use crate::{
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schedule::{
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is_apply_system_buffers, BoxedCondition, ExecutorKind, SystemExecutor, SystemSchedule,
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},
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schedule::{is_apply_deferred, BoxedCondition, ExecutorKind, SystemExecutor, SystemSchedule},
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world::World,
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};
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completed_systems: FixedBitSet,
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/// Systems that have run but have not had their buffers applied.
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unapplied_systems: FixedBitSet,
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/// Setting when true applies system buffers after all systems have run
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apply_final_buffers: bool,
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/// Setting when true applies deferred system buffers after all systems have run
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apply_final_deferred: bool,
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}
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impl SystemExecutor for SingleThreadedExecutor {
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ExecutorKind::SingleThreaded
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}
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fn set_apply_final_buffers(&mut self, apply_final_buffers: bool) {
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self.apply_final_buffers = apply_final_buffers;
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fn set_apply_final_deferred(&mut self, apply_final_deferred: bool) {
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self.apply_final_deferred = apply_final_deferred;
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}
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fn init(&mut self, schedule: &SystemSchedule) {
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}
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let system = &mut schedule.systems[system_index];
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if is_apply_system_buffers(system) {
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if is_apply_deferred(system) {
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#[cfg(feature = "trace")]
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let system_span = info_span!("system", name = &*name).entered();
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self.apply_system_buffers(schedule, world);
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self.apply_deferred(schedule, world);
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#[cfg(feature = "trace")]
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system_span.exit();
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} else {
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@ -109,8 +107,8 @@ impl SystemExecutor for SingleThreadedExecutor {
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}
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}
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if self.apply_final_buffers {
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self.apply_system_buffers(schedule, world);
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if self.apply_final_deferred {
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self.apply_deferred(schedule, world);
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}
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self.evaluated_sets.clear();
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self.completed_systems.clear();
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evaluated_sets: FixedBitSet::new(),
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completed_systems: FixedBitSet::new(),
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unapplied_systems: FixedBitSet::new(),
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apply_final_buffers: true,
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apply_final_deferred: true,
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}
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}
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fn apply_system_buffers(&mut self, schedule: &mut SystemSchedule, world: &mut World) {
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fn apply_deferred(&mut self, schedule: &mut SystemSchedule, world: &mut World) {
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for system_index in self.unapplied_systems.ones() {
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let system = &mut schedule.systems[system_index];
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system.apply_buffers(world);
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system.apply_deferred(world);
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}
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self.unapplied_systems.clear();
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@ -219,12 +219,12 @@ impl Schedule {
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self
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}
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/// Set whether the schedule applies buffers on final time or not. This is a catchall
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/// incase a system uses commands but was not explicitly ordered after a
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/// [`apply_system_buffers`](crate::prelude::apply_system_buffers). By default this
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/// Set whether the schedule applies deferred system buffers on final time or not. This is a catch-all
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/// in case a system uses commands but was not explicitly ordered before an instance of
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/// [`apply_deferred`](crate::prelude::apply_deferred). By default this
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/// setting is true, but may be disabled if needed.
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pub fn set_apply_final_buffers(&mut self, apply_final_buffers: bool) -> &mut Self {
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self.executor.set_apply_final_buffers(apply_final_buffers);
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pub fn set_apply_final_deferred(&mut self, apply_final_deferred: bool) -> &mut Self {
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self.executor.set_apply_final_deferred(apply_final_deferred);
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self
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}
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}
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}
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/// Directly applies any accumulated system buffers (like [`Commands`](crate::prelude::Commands)) to the `world`.
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/// Directly applies any accumulated [`Deferred`](crate::system::Deferred) system parameters (like [`Commands`](crate::prelude::Commands)) to the `world`.
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///
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/// Like always, system buffers are applied in the "topological sort order" of the schedule graph.
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/// Like always, deferred system parameters are applied in the "topological sort order" of the schedule graph.
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/// As a result, buffers from one system are only guaranteed to be applied before those of other systems
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/// if there is an explicit system ordering between the two systems.
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///
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/// This is used in rendering to extract data from the main world, storing the data in system buffers,
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/// before applying their buffers in a different world.
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pub fn apply_system_buffers(&mut self, world: &mut World) {
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pub fn apply_deferred(&mut self, world: &mut World) {
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for system in &mut self.executable.systems {
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system.apply_buffers(world);
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system.apply_deferred(world);
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}
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}
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}
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@ -187,9 +187,9 @@ where
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)
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}
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fn apply_buffers(&mut self, world: &mut World) {
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self.a.apply_buffers(world);
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self.b.apply_buffers(world);
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fn apply_deferred(&mut self, world: &mut World) {
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self.a.apply_deferred(world);
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self.b.apply_deferred(world);
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}
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fn initialize(&mut self, world: &mut World) {
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@ -50,11 +50,11 @@ pub trait Command: Send + 'static {
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///
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/// Since each command requires exclusive access to the `World`,
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/// all queued commands are automatically applied in sequence
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/// when the [`apply_system_buffers`] system runs.
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/// when the [`apply_deferred`] system runs.
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///
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/// The command queue of an individual system can also be manually applied
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/// by calling [`System::apply_buffers`].
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/// Similarly, the command queue of a schedule can be manually applied via [`Schedule::apply_system_buffers`].
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/// by calling [`System::apply_deferred`].
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/// Similarly, the command queue of a schedule can be manually applied via [`Schedule::apply_deferred`].
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///
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/// Each command can be used to modify the [`World`] in arbitrary ways:
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/// * spawning or despawning entities
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@ -68,7 +68,7 @@ pub trait Command: Send + 'static {
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///
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/// # Usage
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///
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/// Add `mut commands: Commands` as a function argument to your system to get a copy of this struct that will be applied the next time a copy of [`apply_system_buffers`] runs.
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/// Add `mut commands: Commands` as a function argument to your system to get a copy of this struct that will be applied the next time a copy of [`apply_deferred`] runs.
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/// Commands are almost always used as a [`SystemParam`](crate::system::SystemParam).
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///
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/// ```
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@ -100,9 +100,9 @@ pub trait Command: Send + 'static {
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/// # }
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/// ```
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///
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/// [`System::apply_buffers`]: crate::system::System::apply_buffers
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/// [`apply_system_buffers`]: crate::schedule::apply_system_buffers
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/// [`Schedule::apply_system_buffers`]: crate::schedule::Schedule::apply_system_buffers
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/// [`System::apply_deferred`]: crate::system::System::apply_deferred
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/// [`apply_deferred`]: crate::schedule::apply_deferred
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/// [`Schedule::apply_deferred`]: crate::schedule::Schedule::apply_deferred
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#[derive(SystemParam)]
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pub struct Commands<'w, 's> {
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queue: Deferred<'s, CommandQueue>,
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@ -122,7 +122,7 @@ where
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}
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#[inline]
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fn apply_buffers(&mut self, _world: &mut World) {
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fn apply_deferred(&mut self, _world: &mut World) {
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// "pure" exclusive systems do not have any buffers to apply.
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// Systems made by piping a normal system with an exclusive system
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// might have buffers to apply, but this is handled by `PipeSystem`.
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@ -445,7 +445,7 @@ where
|
|||
}
|
||||
|
||||
#[inline]
|
||||
fn apply_buffers(&mut self, world: &mut World) {
|
||||
fn apply_deferred(&mut self, world: &mut World) {
|
||||
let param_state = self.param_state.as_mut().expect(Self::PARAM_MESSAGE);
|
||||
F::Param::apply(param_state, &self.system_meta, world);
|
||||
}
|
||||
|
|
|
@ -491,7 +491,7 @@ mod tests {
|
|||
prelude::AnyOf,
|
||||
query::{Added, Changed, Or, With, Without},
|
||||
removal_detection::RemovedComponents,
|
||||
schedule::{apply_system_buffers, IntoSystemConfigs, Schedule},
|
||||
schedule::{apply_deferred, IntoSystemConfigs, Schedule},
|
||||
system::{
|
||||
adapter::new, Commands, In, IntoSystem, Local, NonSend, NonSendMut, ParamSet, Query,
|
||||
QueryComponentError, Res, ResMut, Resource, System, SystemState,
|
||||
|
@ -717,7 +717,7 @@ mod tests {
|
|||
|
||||
let mut schedule = Schedule::default();
|
||||
|
||||
schedule.add_systems((incr_e_on_flip, apply_system_buffers, World::clear_trackers).chain());
|
||||
schedule.add_systems((incr_e_on_flip, apply_deferred, World::clear_trackers).chain());
|
||||
|
||||
schedule.run(&mut world);
|
||||
assert_eq!(world.resource::<Added>().0, 1);
|
||||
|
|
|
@ -61,7 +61,8 @@ pub trait System: Send + Sync + 'static {
|
|||
// - `update_archetype_component_access` has been called.
|
||||
unsafe { self.run_unsafe(input, world) }
|
||||
}
|
||||
fn apply_buffers(&mut self, world: &mut World);
|
||||
/// Applies any [`Deferred`](crate::system::Deferred) system parameters (or other system buffers) of this system to the world.
|
||||
fn apply_deferred(&mut self, world: &mut World);
|
||||
/// Initialize the system.
|
||||
fn initialize(&mut self, _world: &mut World);
|
||||
/// Update the system's archetype component [`Access`].
|
||||
|
|
|
@ -118,7 +118,7 @@ pub unsafe trait SystemParam: Sized {
|
|||
}
|
||||
|
||||
/// Applies any deferred mutations stored in this [`SystemParam`]'s state.
|
||||
/// This is used to apply [`Commands`] during [`apply_system_buffers`](crate::prelude::apply_system_buffers).
|
||||
/// This is used to apply [`Commands`] during [`apply_deferred`](crate::prelude::apply_deferred).
|
||||
///
|
||||
/// [`Commands`]: crate::prelude::Commands
|
||||
#[inline]
|
||||
|
@ -766,7 +766,7 @@ pub trait SystemBuffer: FromWorld + Send + 'static {
|
|||
}
|
||||
|
||||
/// A [`SystemParam`] that stores a buffer which gets applied to the [`World`] during
|
||||
/// [`apply_system_buffers`](crate::schedule::apply_system_buffers).
|
||||
/// [`apply_deferred`](crate::schedule::apply_deferred).
|
||||
/// This is used internally by [`Commands`] to defer `World` mutations.
|
||||
///
|
||||
/// [`Commands`]: crate::system::Commands
|
||||
|
@ -809,7 +809,7 @@ pub trait SystemBuffer: FromWorld + Send + 'static {
|
|||
/// struct AlarmFlag(bool);
|
||||
///
|
||||
/// impl AlarmFlag {
|
||||
/// /// Sounds the alarm the next time buffers are applied via apply_system_buffers.
|
||||
/// /// Sounds the alarm the next time buffers are applied via apply_deferred.
|
||||
/// pub fn flag(&mut self) {
|
||||
/// self.0 = true;
|
||||
/// }
|
||||
|
@ -817,7 +817,7 @@ pub trait SystemBuffer: FromWorld + Send + 'static {
|
|||
///
|
||||
/// impl SystemBuffer for AlarmFlag {
|
||||
/// // When `AlarmFlag` is used in a system, this function will get
|
||||
/// // called the next time buffers are applied via apply_system_buffers.
|
||||
/// // called the next time buffers are applied via apply_deferred.
|
||||
/// fn apply(&mut self, system_meta: &SystemMeta, world: &mut World) {
|
||||
/// if self.0 {
|
||||
/// world.resource_mut::<Alarm>().0 = true;
|
||||
|
|
|
@ -202,7 +202,7 @@ impl Plugin for PbrPlugin {
|
|||
PostUpdate,
|
||||
(
|
||||
add_clusters.in_set(SimulationLightSystems::AddClusters),
|
||||
apply_system_buffers.in_set(SimulationLightSystems::AddClustersFlush),
|
||||
apply_deferred.in_set(SimulationLightSystems::AddClustersFlush),
|
||||
assign_lights_to_clusters
|
||||
.in_set(SimulationLightSystems::AssignLightsToClusters)
|
||||
.after(TransformSystem::TransformPropagate)
|
||||
|
@ -283,7 +283,7 @@ impl Plugin for PbrPlugin {
|
|||
.in_set(RenderLightSystems::PrepareLights),
|
||||
// A sync is needed after prepare_lights, before prepare_view_uniforms,
|
||||
// because prepare_lights creates new views for shadow mapping
|
||||
apply_system_buffers
|
||||
apply_deferred
|
||||
.in_set(RenderSet::Prepare)
|
||||
.after(RenderLightSystems::PrepareLights)
|
||||
.before(ViewSet::PrepareUniforms),
|
||||
|
|
|
@ -165,7 +165,7 @@ where
|
|||
prepare_previous_view_projection_uniforms
|
||||
.in_set(RenderSet::Prepare)
|
||||
.after(PrepassLightsViewFlush),
|
||||
apply_system_buffers
|
||||
apply_deferred
|
||||
.in_set(RenderSet::Prepare)
|
||||
.in_set(PrepassLightsViewFlush)
|
||||
.after(prepare_lights),
|
||||
|
|
|
@ -72,39 +72,39 @@ pub struct RenderPlugin {
|
|||
|
||||
/// The labels of the default App rendering sets.
|
||||
///
|
||||
/// The sets run in the order listed, with [`apply_system_buffers`] inserted between each set.
|
||||
/// The sets run in the order listed, with [`apply_deferred`] inserted between each set.
|
||||
///
|
||||
/// The `*Flush` sets are assigned to the copy of [`apply_system_buffers`]
|
||||
/// The `*Flush` sets are assigned to the copy of [`apply_deferred`]
|
||||
/// that runs immediately after the matching system set.
|
||||
/// These can be useful for ordering, but you almost never want to add your systems to these sets.
|
||||
#[derive(Debug, Hash, PartialEq, Eq, Clone, SystemSet)]
|
||||
pub enum RenderSet {
|
||||
/// The copy of [`apply_system_buffers`] that runs at the beginning of this schedule.
|
||||
/// The copy of [`apply_deferred`] that runs at the beginning of this schedule.
|
||||
/// This is used for applying the commands from the [`ExtractSchedule`]
|
||||
ExtractCommands,
|
||||
/// Prepare render resources from the extracted data for the GPU.
|
||||
Prepare,
|
||||
/// The copy of [`apply_system_buffers`] that runs immediately after [`Prepare`](RenderSet::Prepare).
|
||||
/// The copy of [`apply_deferred`] that runs immediately after [`Prepare`](RenderSet::Prepare).
|
||||
PrepareFlush,
|
||||
/// Create [`BindGroups`](render_resource::BindGroup) that depend on
|
||||
/// [`Prepare`](RenderSet::Prepare) data and queue up draw calls to run during the
|
||||
/// [`Render`](RenderSet::Render) step.
|
||||
Queue,
|
||||
/// The copy of [`apply_system_buffers`] that runs immediately after [`Queue`](RenderSet::Queue).
|
||||
/// The copy of [`apply_deferred`] that runs immediately after [`Queue`](RenderSet::Queue).
|
||||
QueueFlush,
|
||||
// TODO: This could probably be moved in favor of a system ordering abstraction in Render or Queue
|
||||
/// Sort the [`RenderPhases`](render_phase::RenderPhase) here.
|
||||
PhaseSort,
|
||||
/// The copy of [`apply_system_buffers`] that runs immediately after [`PhaseSort`](RenderSet::PhaseSort).
|
||||
/// The copy of [`apply_deferred`] that runs immediately after [`PhaseSort`](RenderSet::PhaseSort).
|
||||
PhaseSortFlush,
|
||||
/// Actual rendering happens here.
|
||||
/// In most cases, only the render backend should insert resources here.
|
||||
Render,
|
||||
/// The copy of [`apply_system_buffers`] that runs immediately after [`Render`](RenderSet::Render).
|
||||
/// The copy of [`apply_deferred`] that runs immediately after [`Render`](RenderSet::Render).
|
||||
RenderFlush,
|
||||
/// Cleanup render resources here.
|
||||
Cleanup,
|
||||
/// The copy of [`apply_system_buffers`] that runs immediately after [`Cleanup`](RenderSet::Cleanup).
|
||||
/// The copy of [`apply_deferred`] that runs immediately after [`Cleanup`](RenderSet::Cleanup).
|
||||
CleanupFlush,
|
||||
}
|
||||
|
||||
|
@ -116,7 +116,7 @@ impl Render {
|
|||
/// Sets up the base structure of the rendering [`Schedule`].
|
||||
///
|
||||
/// The sets defined in this enum are configured to run in order,
|
||||
/// and a copy of [`apply_system_buffers`] is inserted into each `*Flush` set.
|
||||
/// and a copy of [`apply_deferred`] is inserted into each `*Flush` set.
|
||||
pub fn base_schedule() -> Schedule {
|
||||
use RenderSet::*;
|
||||
|
||||
|
@ -124,11 +124,11 @@ impl Render {
|
|||
|
||||
// Create "stage-like" structure using buffer flushes + ordering
|
||||
schedule.add_systems((
|
||||
apply_system_buffers.in_set(PrepareFlush),
|
||||
apply_system_buffers.in_set(QueueFlush),
|
||||
apply_system_buffers.in_set(PhaseSortFlush),
|
||||
apply_system_buffers.in_set(RenderFlush),
|
||||
apply_system_buffers.in_set(CleanupFlush),
|
||||
apply_deferred.in_set(PrepareFlush),
|
||||
apply_deferred.in_set(QueueFlush),
|
||||
apply_deferred.in_set(PhaseSortFlush),
|
||||
apply_deferred.in_set(RenderFlush),
|
||||
apply_deferred.in_set(CleanupFlush),
|
||||
));
|
||||
|
||||
schedule.configure_sets(
|
||||
|
@ -158,7 +158,7 @@ impl Render {
|
|||
/// running the next frame while rendering the current frame.
|
||||
///
|
||||
/// This schedule is run on the main world, but its buffers are not applied
|
||||
/// via [`Schedule::apply_system_buffers`](bevy_ecs::schedule::Schedule) until it is returned to the render world.
|
||||
/// via [`Schedule::apply_deferred`](bevy_ecs::schedule::Schedule) until it is returned to the render world.
|
||||
#[derive(ScheduleLabel, PartialEq, Eq, Debug, Clone, Hash)]
|
||||
pub struct ExtractSchedule;
|
||||
|
||||
|
@ -269,7 +269,7 @@ impl Plugin for RenderPlugin {
|
|||
render_app.main_schedule_label = Box::new(Render);
|
||||
|
||||
let mut extract_schedule = Schedule::new();
|
||||
extract_schedule.set_apply_final_buffers(false);
|
||||
extract_schedule.set_apply_final_deferred(false);
|
||||
|
||||
render_app
|
||||
.add_schedule(ExtractSchedule, extract_schedule)
|
||||
|
@ -404,6 +404,6 @@ fn apply_extract_commands(render_world: &mut World) {
|
|||
schedules
|
||||
.get_mut(&ExtractSchedule)
|
||||
.unwrap()
|
||||
.apply_system_buffers(render_world);
|
||||
.apply_deferred(render_world);
|
||||
});
|
||||
}
|
||||
|
|
|
@ -214,10 +214,7 @@ impl Plugin for VisibilityPlugin {
|
|||
|
||||
app
|
||||
// We add an AABB component in CalculateBounds, which must be ready on the same frame.
|
||||
.add_systems(
|
||||
PostUpdate,
|
||||
apply_system_buffers.in_set(CalculateBoundsFlush),
|
||||
)
|
||||
.add_systems(PostUpdate, apply_deferred.in_set(CalculateBoundsFlush))
|
||||
.configure_set(PostUpdate, CalculateBoundsFlush.after(CalculateBounds))
|
||||
.add_systems(
|
||||
PostUpdate,
|
||||
|
|
|
@ -74,7 +74,7 @@ pub trait BuildChildrenTransformExt {
|
|||
///
|
||||
/// Note that both the hierarchy and transform updates will only execute
|
||||
/// the next time commands are applied
|
||||
/// (during [`apply_system_buffers`](bevy_ecs::schedule::apply_system_buffers)).
|
||||
/// (during [`apply_deferred`](bevy_ecs::schedule::apply_deferred)).
|
||||
fn set_parent_in_place(&mut self, parent: Entity) -> &mut Self;
|
||||
|
||||
/// Make this entity parentless while preserving this entity's [`GlobalTransform`]
|
||||
|
@ -85,7 +85,7 @@ pub trait BuildChildrenTransformExt {
|
|||
///
|
||||
/// Note that both the hierarchy and transform updates will only execute
|
||||
/// the next time commands are applied
|
||||
/// (during [`apply_system_buffers`](bevy_ecs::schedule::apply_system_buffers)).
|
||||
/// (during [`apply_deferred`](bevy_ecs::schedule::apply_deferred)).
|
||||
fn remove_parent_in_place(&mut self) -> &mut Self;
|
||||
}
|
||||
impl<'w, 's, 'a> BuildChildrenTransformExt for EntityCommands<'w, 's, 'a> {
|
||||
|
|
|
@ -206,7 +206,7 @@ Example | Description
|
|||
|
||||
Example | Description
|
||||
--- | ---
|
||||
[Apply System Buffers](../examples/ecs/apply_system_buffers.rs) | Show how to use `apply_system_buffers` system
|
||||
[Apply System Buffers](../examples/ecs/apply_deferred.rs) | Show how to use `apply_deferred` system
|
||||
[Component Change Detection](../examples/ecs/component_change_detection.rs) | Change detection on components
|
||||
[Custom Query Parameters](../examples/ecs/custom_query_param.rs) | Groups commonly used compound queries and query filters into a single type
|
||||
[ECS Guide](../examples/ecs/ecs_guide.rs) | Full guide to Bevy's ECS
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
//! This example illustrates how to use the `apply_system_buffers` system
|
||||
//! This example illustrates how to use the `apply_deferred` system
|
||||
//! to flush commands added by systems that have already run,
|
||||
//! but have not had their buffers applied yet.
|
||||
//!
|
||||
|
@ -7,7 +7,7 @@
|
|||
//! added to `CoreSet::Update`) but want to flush commands immediately.
|
||||
//!
|
||||
//! It is important that systems are ordered correctly with respect to
|
||||
//! `apply_system_buffers`, to avoid surprising non-deterministic system execution order.
|
||||
//! `apply_deferred`, to avoid surprising non-deterministic system execution order.
|
||||
|
||||
use bevy::prelude::*;
|
||||
|
||||
|
@ -21,9 +21,9 @@ fn main() {
|
|||
(
|
||||
(
|
||||
despawn_old_and_spawn_new_fruits,
|
||||
// We encourage adding apply_system_buffers to a custom set
|
||||
// We encourage adding apply_deferred to a custom set
|
||||
// to improve diagnostics. This is optional, but useful when debugging!
|
||||
apply_system_buffers.in_set(CustomFlush),
|
||||
apply_deferred.in_set(CustomFlush),
|
||||
count_apple,
|
||||
)
|
||||
.chain(),
|
|
@ -7,7 +7,7 @@ fn main() {
|
|||
// to react to the removal before the frame is over.
|
||||
//
|
||||
// Also, `Components` are removed via a `Command`, which are not applied immediately.
|
||||
// So you need to react to the removal at some stage after `apply_system_buffers` has run,
|
||||
// So you need to react to the removal at some stage after `apply_deferred` has run,
|
||||
// and the Component` is removed.
|
||||
//
|
||||
// With these constraints in mind we make sure to place the system that removes a `Component` in
|
||||
|
|
Loading…
Reference in a new issue