gistfile1.dart

part of worldcamera;

class Play extends State {
  bool timerIsOn = false;
  Sprite player;
  Group<Sprite> bullets;
  Timer bulletTimer;

  load() {
    game.resourceManager.addBitmapData('ship', 'playerShip1_blue.png');
    game.resourceManager.addBitmapData('background', 'space-wallpaper-3.jpg');
    game.resourceManager.addBitmapData('laserBlue01', 'laser.png');
  }

  create() {
    game.add.background('background');
    player = game.add.sprite('ship')
        ..speed = 300
        ..x = 300
        ..y = 1000;

    game.camera.follow(player);

    bullets = new Group<Sprite>();
    for (int i = 0; i < 10; i++) {
      bullets.add(game.add.sprite('laserBlue01', addToWorld: false)
      //rotation
        ..speedY = 500
        ..killOutOfBounds = true);
    }
  }

  update() {

    player.stop();

    if(player.y > 1000){
      player.y = 1000;
    }
    if(player.y < 200){
      player.y = 200;
    }
    if(player.x > 1700){
      player.x = 1700;
    }
    if(player.x < 200){
      player.x = 200;
    }

    Sprite bullet;
    if (game.keyboard.isDown(KeyCode.SPACE)) {
      if (timerIsOn) {
        return;
      } else {
        timerIsOn = true;
        bulletTimer = new Timer(new Duration(milliseconds: 300), (finish));
        player.center();
        bullet = bullets.firstWhere((item) => !item.alive)
          ..x = player.x
          ..y = player.y - 50
          ..alive = true;
        bullet.move('up');
        bullet.addToWorld();
      }
    }
    player.stop();

    if (game.keyboard.isDown(KeyCode.W)) {
      player.move('forward');
    }
    if (game.keyboard.isDown(KeyCode.S)) {
      player.move('backward');
    }
    if (game.keyboard.isDown(KeyCode.A)) {
      player.move('left');
    }
    if (game.keyboard.isDown(KeyCode.D)) {
      player.move('right');
    }

  }
  finish(){timerIsOn = false;}

}