[−][src]Trait oxygengine_core::ecs::System
A System
, executed with a set of required Resource
s.
Associated Types
type SystemData: DynamicSystemData<'a>
The resource bundle required to execute this system.
You will mostly use a tuple of system data (which also implements SystemData
).
You can also create such a resource bundle by simply deriving SystemData
for a struct.
Every SystemData
is also a DynamicSystemData
.
Required methods
fn run(&mut self, data: Self::SystemData)
Executes the system with the required system data.
Provided methods
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).
Defaults to RunningTime::Average
.
fn accessor(&'b self) -> AccessorCow<'a, 'b, Self>
Return the accessor from the SystemData
.
fn setup(&mut self, res: &mut Resources)
Sets up the Resources
using Self::SystemData::setup
.
fn dispose(self, res: &mut Resources)
Performs clean up that requires resources from the Resources
.
This commonly removes components from Resources
which depend on external
resources.
Implementations on Foreign Types
impl<'a, P> System<'a> for HierarchySystem<P> where
P: Component + Parent + Send + Sync + 'static,
<P as Component>::Storage: Tracked,
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P: Component + Parent + Send + Sync + 'static,
<P as Component>::Storage: Tracked,
type SystemData = (ParentData<'a, P>, Write<'a, Hierarchy<P>, HierarchySetupHandler<P>>)
fn run(&mut self, <HierarchySystem<P> as System<'a>>::SystemData)
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Implementors
impl<'s> System<'s> for AssetsSystem
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type SystemData = Option<Write<'s, AssetsDatabase>>
fn run(&mut self, data: Self::SystemData)
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impl<'s> System<'s> for LocalizationSystem
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type SystemData = (ReadExpect<'s, AssetsDatabase>, Write<'s, Localization>)
fn run(&mut self, (assets, localization): Self::SystemData)
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impl<'s> System<'s> for PrefabSystem
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type SystemData = (Read<'s, EntitiesRes>, Read<'s, LazyUpdate>, ReadExpect<'s, AppLifeCycle>, ReadExpect<'s, AssetsDatabase>, Write<'s, PrefabManager>)
fn run(
&mut self,
(entities, lazy_update, lifecycle, assets, prefabs): Self::SystemData
)
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&mut self,
(entities, lazy_update, lifecycle, assets, prefabs): Self::SystemData
)