/****
* Classes
****/
// Assets will be automatically created based on usage in the code.
// Ball class
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.move = function () {
    self.x += self.speedX;
    self.y += self.speedY;
    // Bounce off top and bottom walls
    if (self.y <= 0 || self.y >= 2732) {
      self.speedY *= -1;
    }
  };
});
// Paddle class
var Paddle = Container.expand(function () {
  var self = Container.call(this);
  var paddleGraphics = self.attachAsset('paddle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.move = function (y) {
    self.y = y;
    // Prevent paddle from moving out of bounds
    if (self.y < 0) {
      self.y = 0;
    } else if (self.y > 2732) {
      self.y = 2732;
    }
  };
});

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

/****
* Game Code
****/
// Initialize ball and paddles
var ball = game.addChild(new Ball());
ball.x = 1024; // Center horizontally
ball.y = 1366; // Center vertically
var playerPaddle = game.addChild(new Paddle());
playerPaddle.x = 100; // Position player paddle on the left
var aiPaddle = game.addChild(new Paddle());
aiPaddle.x = 1948; // Position AI paddle on the right
// Handle touch movement for player paddle
game.on('move', function (obj) {
  var pos = obj.event.getLocalPosition(game);
  playerPaddle.move(pos.y);
});
// AI movement
function aiMove() {
  if (ball.y > aiPaddle.y) {
    aiPaddle.y += 5;
  } else {
    aiPaddle.y -= 5;
  }
}
// Check for ball collisions with paddles
function checkCollisions() {
  if (ball.intersects(playerPaddle) || ball.intersects(aiPaddle)) {
    ball.speedX *= -1; // Reverse ball direction
  }
  // Check for scoring
  if (ball.x <= 0 || ball.x >= 2048) {
    // Reset ball position
    ball.x = 1024;
    ball.y = 1366;
    ball.speedX *= -1;
  }
}
// Game tick
LK.on('tick', function () {
  ball.move();
  aiMove();
  checkCollisions();
});