/****
* Classes
****/
// Ball class for game ball
var Ball = Container.expand(function () {
  var self = Container.call(this);
  var ballGraphics = self.attachAsset('ball', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedX = 5;
  self.speedY = 5;
  self.update = function () {
    self.x += self.speedX;
    self.y += self.speedY;
  };
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Paddle class for player control
var Paddle = Container.expand(function () {
  var self = Container.call(this);
  var paddleGraphics = self.attachAsset('paddle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 10;
  self.update = function () {
    // Paddle movement logic will be handled in game code
  };
});

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

/****
* Game Code
****/
// Initialize paddles and ball
var leftPaddle = game.addChild(new Paddle());
var rightPaddle = game.addChild(new Paddle());
var ball = game.addChild(new Ball());
// Position paddles and ball
leftPaddle.x = 50;
leftPaddle.y = 2732 / 2;
rightPaddle.x = 2048 - 50;
rightPaddle.y = 2732 / 2;
ball.x = 2048 / 2;
ball.y = 2732 / 2;
// Score variables
var leftScore = 0;
var rightScore = 0;
// Score display
var leftScoreTxt = new Text2('0', {
  size: 100,
  fill: 0xFFFFFF
});
var rightScoreTxt = new Text2('0', {
  size: 100,
  fill: 0xFFFFFF
});
leftScoreTxt.anchor.set(0.5, 0);
rightScoreTxt.anchor.set(0.5, 0);
LK.gui.topLeft.addChild(leftScoreTxt);
LK.gui.topRight.addChild(rightScoreTxt);
// Update score display
function updateScore() {
  leftScoreTxt.setText(leftScore);
  rightScoreTxt.setText(rightScore);
}
// Handle paddle movement
game.move = function (x, y, obj) {
  if (x < 2048 / 2) {
    leftPaddle.y = y;
  } else {
    rightPaddle.y = y;
  }
};
// Game update loop
game.update = function () {
  ball.update();
  // Ball collision with top and bottom
  if (ball.y <= 0 || ball.y >= 2732) {
    ball.speedY *= -1;
  }
  // Ball collision with paddles
  if (ball.intersects(leftPaddle) || ball.intersects(rightPaddle)) {
    ball.speedX *= -1;
  }
  // Scoring
  if (ball.x <= 0) {
    rightScore++;
    updateScore();
    resetBall();
  } else if (ball.x >= 2048) {
    leftScore++;
    updateScore();
    resetBall();
  }
};
// Reset ball to center
function resetBall() {
  ball.x = 2048 / 2;
  ball.y = 2732 / 2;
  ball.speedX = 5 * (Math.random() > 0.5 ? 1 : -1);
  ball.speedY = 5 * (Math.random() > 0.5 ? 1 : -1);
}