Struct specs_hierarchy::HierarchySystem

pub struct HierarchySystem<P> { /* fields omitted */ }

System for maintaining a Hierarchy resource.

Type parameters:

• P: Component type that provides Parent links for the maintained Hierarchy

Methods

impl<P> HierarchySystem<P> where
    P: Component + Parent + Send + Sync + 'static,
    P::Storage: Tracked, 

pub fn new(world: &mut World) -> Self

Trait Implementations

impl<'a, P> System<'a> for HierarchySystem<P> where
    P: Component + Parent + Send + Sync + 'static,
    P::Storage: Tracked, 

type SystemData = (ParentData<'a, P>, WriteExpect<'a, Hierarchy<P>>)

The resource bundle required to execute this system.

fn run(&mut self, (data, hierarchy): Self::SystemData)

Executes the system with the required system data.

fn running_time(&self) -> RunningTime

Returns a hint how long the system needs for running. This is used to optimize the way they're executed (might allow more parallelization).

fn accessor(&'b self) -> AccessorCow<'a, 'b, Self>

Return the accessor from the [SystemData].

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

Sets up the World using Self::SystemData::setup.

fn dispose(self, world: &mut World)

Performs clean up that requires resources from the World. This commonly removes components from world which depend on external resources.