mirror of https://github.com/flutter/pinball.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.3 KiB
45 lines
1.3 KiB
import 'package:flame/components.dart';
|
|
import 'package:flame_bloc/flame_bloc.dart';
|
|
import 'package:flutter/foundation.dart';
|
|
|
|
/// {@template component_controller}
|
|
/// A [ComponentController] is a [Component] in charge of handling the logic
|
|
/// associated with another [Component].
|
|
///
|
|
/// [ComponentController]s usually implement [BlocComponent].
|
|
/// {@endtemplate}
|
|
abstract class ComponentController<T extends Component> extends Component {
|
|
/// {@macro component_controller}
|
|
ComponentController(this.component);
|
|
|
|
/// The [Component] controlled by this [ComponentController].
|
|
final T component;
|
|
|
|
@override
|
|
Future<void> addToParent(Component parent) async {
|
|
assert(
|
|
parent == component,
|
|
'ComponentController should be child of $component.',
|
|
);
|
|
await super.addToParent(parent);
|
|
}
|
|
|
|
@override
|
|
Future<void> add(Component component) {
|
|
throw Exception('ComponentController cannot add other components.');
|
|
}
|
|
}
|
|
|
|
/// Mixin that attaches a single [ComponentController] to a [Component].
|
|
mixin Controls<T extends ComponentController> on Component {
|
|
/// The [ComponentController] attached to this [Component].
|
|
late T controller;
|
|
|
|
@override
|
|
@mustCallSuper
|
|
Future<void> onLoad() async {
|
|
await super.onLoad();
|
|
await add(controller);
|
|
}
|
|
}
|