/****
* Classes
****/
var Hero = Container.expand(function () {
  var self = Container.call(this);
  var heroGraphics = self.attachAsset('hero', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedY = 0;
  self.gravity = 0.5;
  self.jumpForce = -10;
  self.jump = function () {
    self.speedY = self.jumpForce;
  };
  self.update = function () {
    self.y += self.speedY;
    self.speedY += self.gravity;
    // Prevent hero from falling below the ground
    if (self.y > 2732 - 25) {
      self.y = 2732 - 25;
      self.speedY = 0;
    }
  };
});
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedX = -5;
  self.move = function () {
    self.x += self.speedX;
  };
});
var Tower = Container.expand(function () {
  var self = Container.call(this);
  var towerGraphics = self.attachAsset('tower', {
    anchorX: 0.5,
    anchorY: 0
  });
  self.x = 2048 / 2; // Center the tower
});

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

/****
* Game Code
****/
var hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 / 2;
var towers = [];
var obstacles = [];
// Create initial tower
var initialTower = game.addChild(new Tower());
// Handle touch to make the hero jump
game.on('down', function () {
  hero.jump();
});
// Game tick
LK.on('tick', function () {
  hero.update();
  // Move obstacles and check for collision with hero
  for (var i = obstacles.length - 1; i >= 0; i--) {
    obstacles[i].move();
    if (hero.intersects(obstacles[i])) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
    // Remove off-screen obstacles
    if (obstacles[i].x < -50) {
      obstacles[i].destroy();
      obstacles.splice(i, 1);
    }
  }
  // Add new obstacles
  if (LK.ticks % 120 == 0) {
    // Every 2 seconds
    var newObstacle = new Obstacle();
    newObstacle.x = 2048 + 50; // Start off-screen to the right
    newObstacle.y = Math.random() * (2732 - 50); // Random height
    obstacles.push(game.addChild(newObstacle));
  }
});