Struct ExtractResourcePlugin 

pub struct ExtractResourcePlugin<R: ExtractResource<F>, F = ()>(/* private fields */);

Plugin for extracting a resource from the main world to be used in the render world. This plugin will automatically add a system to extract the resource of the corresponding type from the main world and insert it into the render world.

Note:

• The resource to extract must implement the ExtractResource trait.
• If the resource already exists in the render world, it will be updated with the new value from the main world. Otherwise, it will be inserted as a new resource in the render world.
• The update will only happen if the resource in the main world has changed, to avoid unnecessary updates and potential performance issues.
• The marker type F is only used as a way to bypass the orphan rules.

Trait Implementations

impl<R: ExtractResource<F>, F> Default for ExtractResourcePlugin<R, F>

fn default() -> Self

Returns the “default value” for a type.

impl<R: ExtractResource<F>, F: 'static + Send + Sync> Plugin for ExtractResourcePlugin<R, F>

fn build(&self, app: &mut App)

Configures the [App] to which this plugin is added.

fn ready(&self, _app: &App) -> bool

Has the plugin finished its setup? This can be useful for plugins that need something asynchronous to happen before they can finish their setup, like the initialization of a renderer. Once the plugin is ready, finish should be called.

fn finish(&self, _app: &mut App)

Finish adding this plugin to the [App], once all plugins registered are ready. This can be useful for plugins that depends on another plugin asynchronous setup, like the renderer.

fn cleanup(&self, _app: &mut App)

Runs after all plugins are built and finished, but before the app schedule is executed. This can be useful if you have some resource that other plugins need during their build step, but after build you want to remove it and send it to another thread.

fn name(&self) -> &str

Configures a name for the [Plugin] which is primarily used for checking plugin uniqueness and debugging.

fn is_unique(&self) -> bool

If the plugin can be meaningfully instantiated several times in an [App], override this method to return false.