/****
* Classes
****/
//<Assets used in the game will automatically appear here>
// Balloon class
var Balloon = Container.expand(function () {
  var self = Container.call(this);
  var colors = [0xff0000, 0x00ff00, 0x0000ff, 0xffff00, 0xff00ff];
  var color = colors[Math.floor(Math.random() * colors.length)];
  var balloonGraphics = self.attachAsset('balloon', {
    width: 100,
    height: 150,
    color: color,
    shape: 'ellipse',
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = Math.random() * 2 + 1;
  self.update = function () {
    self.y -= self.speed;
    if (self.y < -100) {
      self.destroy();
    }
  };
  self.down = function (x, y, obj) {
    if (color === 0xff0000) {
      // Red balloon explodes
      explode(self.x, self.y);
    } else {
      // Other balloons just pop
      self.destroy();
    }
  };
});
// Explosion class
var Explosion = Container.expand(function () {
  var self = Container.call(this);
  var explosionGraphics = self.attachAsset('explosion', {
    width: 200,
    height: 200,
    color: 0xffa500,
    shape: 'ellipse',
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.update = function () {
    explosionGraphics.alpha -= 0.05;
    if (explosionGraphics.alpha <= 0) {
      self.destroy();
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x87ceeb // Init game with sky blue background
});

/****
* Game Code
****/
var balloons = [];
var score = 0;
var scoreTxt = new Text2('0', {
  size: 150,
  fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
function spawnBalloon() {
  var balloon = new Balloon();
  balloon.x = Math.random() * 2048;
  balloon.y = 2732 + 100;
  balloons.push(balloon);
  game.addChild(balloon);
}
function explode(x, y) {
  var explosion = new Explosion();
  explosion.x = x;
  explosion.y = y;
  game.addChild(explosion);
  // Destroy nearby balloons
  for (var i = balloons.length - 1; i >= 0; i--) {
    if (Math.abs(balloons[i].x - x) < 200 && Math.abs(balloons[i].y - y) < 200) {
      balloons[i].destroy();
      balloons.splice(i, 1);
      score++;
      scoreTxt.setText(score);
    }
  }
}
game.update = function () {
  for (var i = balloons.length - 1; i >= 0; i--) {
    balloons[i].update();
    if (balloons[i].y < -100) {
      balloons.splice(i, 1);
    }
  }
  if (LK.ticks % 60 == 0) {
    spawnBalloon();
  }
};
game.down = function (x, y, obj) {
  for (var i = balloons.length - 1; i >= 0; i--) {
    if (balloons[i].containsPoint({
      x: x,
      y: y
    })) {
      balloons[i].down(x, y, obj);
      balloons.splice(i, 1);
      score++;
      scoreTxt.setText(score);
      break;
    }
  }
};