/****
* Classes
****/
// Ball class for shots from AI opponents
var Ball = Container.expand(function () {
  var self = Container.call(this);
  var ballGraphics = self.attachAsset('ball', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedX = 0;
  self.speedY = 0;
  self.move = function () {
    self.x += self.speedX;
    self.y += self.speedY;
  };
  self.setSpeed = function (speedX, speedY) {
    self.speedX = speedX;
    self.speedY = speedY;
  };
});
// Assets will be automatically created based on usage in the code.
// Defender class
var Defender = Container.expand(function () {
  var self = Container.call(this);
  var defenderGraphics = self.attachAsset('defender', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.move = function (x, y) {
    self.x = x;
    self.y = y;
  };
});

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

/****
* Game Code
****/
// Global variables
var defender;
var balls = [];
var gameAreaWidth = 2048;
var gameAreaHeight = 2732;
// Initialize defender
function initDefender() {
  defender = game.addChild(new Defender());
  defender.x = gameAreaWidth / 2;
  defender.y = gameAreaHeight - 200; // Position defender towards the bottom
}
// Initialize balls
function initBalls() {
  var ball = game.addChild(new Ball());
  ball.x = Math.random() * gameAreaWidth;
  ball.y = 0; // Start from the top
  var speedX = (Math.random() - 0.5) * 10;
  var speedY = Math.random() * 5 + 2;
  ball.setSpeed(speedX, speedY);
  balls.push(ball);
}
// Move defender based on touch
game.on('down', function (obj) {
  var pos = obj.event.getLocalPosition(game);
  defender.move(pos.x, defender.y);
});
// Ball movement and collision detection
LK.on('tick', function () {
  balls.forEach(function (ball, index) {
    ball.move();
    // Remove ball if it goes off screen
    if (ball.y > gameAreaHeight) {
      ball.destroy();
      balls.splice(index, 1);
    }
    // Check collision with defender
    if (ball.intersects(defender)) {
      ball.destroy();
      balls.splice(index, 1);
      // Handle collision (e.g., game over, score update)
    }
  });
  // Add new ball every few seconds
  if (LK.ticks % 180 == 0) {
    // Every 3 seconds
    initBalls();
  }
});
// Initialize game elements
function initGame() {
  initDefender();
  initBalls();
}
initGame();