Struct shine_ecs::entities::ds::ReadComponents

pub struct ReadComponents<'a, C> where
    C: Component,  { /* fields omitted */ }

Grant immutable access to the components inside a System

Methods from Deref<Target = ComponentStore<C>>

pub fn count(&self) -> usize

pub fn contains(&self, edge: Edge) -> bool

pub fn get(
    &self,
    edge: Edge
) -> Option<&<<T as Component>::Store as Store>::Item>

pub fn read(
    &self
) -> WrapRowRead<<T as Component>::Mask, <T as Component>::Store>

Trait Implementations

impl<'a, C> Deref for ReadComponents<'a, C> where
    C: Component, 

type Target = ComponentStore<C>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, C> SystemData<'a> for ReadComponents<'a, C> where
    C: Component, 

fn setup(_: &mut World)

Sets up the system data for fetching it from the World.

fn fetch(res: &'a World) -> Self

Fetches the system data from World. Note that this is only specified for one concrete lifetime 'a, you need to implement the SystemData trait for every possible lifetime.

fn reads() -> Vec<ResourceId>

Returns all read dependencies as fetched from Self::fetch.

fn writes() -> Vec<ResourceId>

Returns all write dependencies as fetched from Self::fetch.