brick_breaker/step_05/lib/src/brick_breaker.dart

// Copyright 2023 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';
import 'dart:math' as math;

import 'package:flame/components.dart';
import 'package:flame/game.dart';

import 'components/components.dart';
import 'config.dart';

class BrickBreaker extends FlameGame {
  BrickBreaker()
    : super(
        camera: CameraComponent.withFixedResolution(
          width: gameWidth,
          height: gameHeight,
        ),
      );

  final rand = math.Random();
  double get width => size.x;
  double get height => size.y;

  @override
  FutureOr<void> onLoad() async {
    super.onLoad();

    camera.viewfinder.anchor = Anchor.topLeft;

    world.add(PlayArea());

    world.add(
      Ball(
        radius: ballRadius,
        position: size / 2,
        velocity: Vector2(
          (rand.nextDouble() - 0.5) * width,
          height * 0.2,
        ).normalized()..scale(height / 4),
      ),
    );

    debugMode = true;
  }
}