Function ambient_element::use_resource

pub fn use_resource<T: SupportedValue + Clone + Debug + Sync + Send + PartialEq + 'static>(
    hooks: &mut Hooks<'_>,
    component: Component<T>
) -> (Option<T>, Setter<T>)

Use a resource from the ECS, and update its state if required.

If the resource does not exist, this will return None. The setter will add the resource if it does not exist.