Module bevy::ecs::schedule

Tools for controlling system execution.

When using Bevy ECS, systems are usually not run directly, but are inserted into a Stage, which then lives within a Schedule.

Modules

graph_utils

Structs

AmbiguitySetLabelId

Strongly-typed identifier for an AmbiguitySetLabel.

ExclusiveSystemDescriptor

Encapsulates an exclusive system and information on when it runs in a SystemStage.

ParallelExecutor

ParallelSystemContainer

ParallelSystemDescriptor

Encapsulates a parallel system and information on when it runs in a SystemStage.

ReportExecutionOrderAmbiguities

When this resource is present in the App’s Resources, each SystemStage will log a report containing pairs of systems with ambiguous execution order.

RunCriteria

RunCriteriaDescriptor

RunCriteriaLabelId

Strongly-typed identifier for a RunCriteriaLabel.

Schedule

A container of Stages set to be run in a linear order.

SingleThreadedExecutor

StageLabelId

Strongly-typed identifier for a StageLabel.

State

Stack based state machine

SystemLabelId

Strongly-typed identifier for a SystemLabel.

SystemSet

A builder for describing several systems at the same time.

SystemStage

Stores and executes systems. Execution order is not defined unless explicitly specified; see SystemDescriptor documentation.

Enums

RunCriteriaDescriptorOrLabel

ShouldRun

Determines whether a system should be executed or not, and how many times it should be ran each time the stage is executed.

StateError

SystemDescriptor

Encapsulates a system and information on when it run in a SystemStage.

Traits

AmbiguitySetLabel

A strongly-typed class of labels used to identify sets of systems with intentionally ambiguous execution order.

ExclusiveSystemDescriptorCoercion

GraphNode

IntoRunCriteria

IntoSystemDescriptor

ParallelSystemDescriptorCoercion

ParallelSystemExecutor

RunCriteriaDescriptorCoercion

RunCriteriaLabel

A strongly-typed class of labels used to identify run criteria.

Stage

A type that can run as a step of a Schedule.

StageLabel

A strongly-typed class of labels used to identify Stages.

StateData

SystemContainer

System metadata like its name, labels, order requirements and component access.

SystemLabel

A strongly-typed class of labels used to identify Systems.

Derive Macros

AmbiguitySetLabel

Generates an impl of the AmbiguitySetLabel trait.

RunCriteriaLabel

Generates an impl of the RunCriteriaLabel trait.

StageLabel

Generates an impl of the StageLabel trait.

SystemLabel

Generates an impl of the SystemLabel trait.