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dbda37b81a
This PR adds the following lint rules to our list: ``` always_put_required_named_parameters_first avoid_multiple_declarations_per_line avoid_positional_boolean_parameters avoid_returning_null_for_void avoid_returning_this avoid_unnecessary_containers enable_null_safety library_private_types_in_public_api no_leading_underscores_for_library_prefixes no_leading_underscores_for_local_identifiers prefer_null_aware_method_calls tighten_type_of_initializing_formals unnecessary_late use_setters_to_change_properties ``` And these rules were considered, and some changes were made according to them as a clean-up, but in many places they didn't make sense (`prefer_asserts_with_message` I would have included, but there were too many places that needed to be changes): ``` collection_methods_unrelated_type prefer_asserts_with_message avoid_renaming_method_parameters ```
44 lines
1.2 KiB
Dart
44 lines
1.2 KiB
Dart
import 'package:flame/collisions.dart';
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import 'package:flame/components.dart';
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import 'package:flame/game.dart';
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class JoystickPlayer extends SpriteComponent
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with HasGameRef, CollisionCallbacks {
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/// Pixels/s
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double maxSpeed = 300.0;
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late final Vector2 _lastSize = size.clone();
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late final Transform2D _lastTransform = transform.clone();
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final JoystickComponent joystick;
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JoystickPlayer(this.joystick)
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: super(size: Vector2.all(100.0), anchor: Anchor.center);
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@override
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Future<void> onLoad() async {
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sprite = await gameRef.loadSprite('layers/player.png');
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position = gameRef.size / 2;
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add(RectangleHitbox());
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}
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@override
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void update(double dt) {
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if (!joystick.delta.isZero() && activeCollisions.isEmpty) {
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_lastSize.setFrom(size);
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_lastTransform.setFrom(transform);
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position.add(joystick.relativeDelta * maxSpeed * dt);
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angle = joystick.delta.screenAngle();
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}
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}
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@override
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void onCollisionStart(
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Set<Vector2> intersectionPoints,
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PositionComponent other,
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) {
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super.onCollisionStart(intersectionPoints, other);
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transform.setFrom(_lastTransform);
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size.setFrom(_lastSize);
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}
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}
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