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SystemContextExt

basalt_api::system

Trait SystemContextExt 

Source 
pub trait SystemContextExt {
    // Required methods
    fn get<T: Component>(&self, entity: EntityId) -> Option<&T>;
    fn get_mut<T: Component>(&mut self, entity: EntityId) -> Option<&mut T>;
    fn set<T: Component>(&mut self, entity: EntityId, component: T);
    fn query<T: Component>(&self) -> Vec<EntityId> ⓘ;
}
Expand description

Typed convenience methods on SystemContext.

Implemented for dyn SystemContext so callers can write ctx.get::<Position>(id) instead of raw get_component + downcast.

Required Methods§

Source

fn get<T: Component>(&self, entity: EntityId) -> Option<&T>

Returns a typed component reference.

Source

fn get_mut<T: Component>(&mut self, entity: EntityId) -> Option<&mut T>

Returns a typed mutable component reference.

Source

fn set<T: Component>(&mut self, entity: EntityId, component: T)

Sets a typed component value for an entity.

Source

fn query<T: Component>(&self) -> Vec<EntityId> ⓘ

Returns all entity IDs that have a component of type T.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§