/****
* Classes
****/
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Ball class representing the ball that breaks bricks
var Ball = Container.expand(function () {
  var self = Container.call(this);
  var ballGraphics = self.attachAsset('ball', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.direction = {
    x: 1,
    y: -1
  };
  self.update = function () {
    self.x += self.speed * self.direction.x;
    self.y += self.speed * self.direction.y;
    // Bounce off walls
    if (self.x <= 0 || self.x >= 2048) {
      self.direction.x *= -1;
    }
    if (self.y <= 0) {
      self.direction.y *= -1;
    }
  };
});
// Brick class representing the bricks to be broken
var Brick = Container.expand(function () {
  var self = Container.call(this);
  var brickGraphics = self.attachAsset('brick', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.health = 1;
  self.hit = function () {
    self.health -= 1;
    if (self.health <= 0) {
      self.destroy();
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x000000 //Init game with black background 
});

/****
* Game Code
****/
// Initialize game variables
var balls = [];
var bricks = [];
var score = 0;
// Create and position bricks
function createBricks() {
  for (var i = 0; i < 5; i++) {
    for (var j = 0; j < 10; j++) {
      var brick = new Brick();
      brick.x = 200 + j * 150;
      brick.y = 100 + i * 100;
      bricks.push(brick);
      game.addChild(brick);
    }
  }
}
// Create a new ball
function createBall() {
  var ball = new Ball();
  ball.x = 1024;
  ball.y = 2000;
  balls.push(ball);
  game.addChild(ball);
}
// Handle game updates
game.update = function () {
  // Update balls
  for (var i = balls.length - 1; i >= 0; i--) {
    var ball = balls[i];
    ball.update();
    // Check for collisions with bricks
    for (var j = bricks.length - 1; j >= 0; j--) {
      var brick = bricks[j];
      if (ball.intersects(brick)) {
        brick.hit();
        ball.direction.y *= -1;
        score += 10;
      }
    }
    // Remove ball if it goes off screen
    if (ball.y > 2732) {
      ball.destroy();
      balls.splice(i, 1);
    }
  }
  // Check for game over
  if (balls.length === 0) {
    LK.showGameOver();
  }
};
// Handle screen tap to launch a new ball
game.down = function (x, y, obj) {
  createBall();
};
// Initialize game elements
createBricks();
createBall();