Struct PhysicsStepSystem2D 

pub struct PhysicsStepSystem2D { /* private fields */ }

System that steps the 2D physics simulation and writes positions back.

Each frame this system:

1. Steps the physics provider by a fixed timestep (1/60 s).
2. For each entity tracked in PhysicsHandleMap2D, reads the body position from the provider and updates the entity’s Transform2D.

The system owns the physics provider. Users add bodies to the provider directly and register the entity-to-handle mapping in PhysicsHandleMap2D.

Implementations

impl PhysicsStepSystem2D

pub fn new(provider: Box<dyn PhysicsProvider>) -> Self

Creates a new 2D physics step system with the given provider.

pub fn provider(&self) -> &dyn PhysicsProvider

Returns a reference to the underlying physics provider.

pub fn provider_mut(&mut self) -> &mut dyn PhysicsProvider

Returns a mutable reference to the underlying physics provider.

Trait Implementations

impl System for PhysicsStepSystem2D

fn name(&self) -> &'static str

Returns the name of this system.

fn component_access(&self) -> Access

Returns the component access pattern for this system.

fn run(&mut self, world: &mut World)

Runs the system on the given world.

fn initialize(&mut self, _world: &mut World)

Called once when the system is first added to a scheduler.

fn should_run(&self, _world: &World) -> bool

Returns whether this system should run.

fn is_read_only(&self) -> bool

Returns true if this system only reads data.