/****
* Classes
****/
// Define the Grendizer (player's character) class
var Grendizer = Container.expand(function () {
  var self = Container.call(this);
  var grendizerGraphics = self.createAsset('grendizer', 'Player character', 0.5, 0.5);
  self.speed = 5;
  self.moveLeft = function () {
    self.x = Math.max(self.width / 2, self.x - self.speed);
  };
  self.moveRight = function () {
    self.x = Math.min(2048 - self.width / 2, self.x + self.speed);
  };
  self.update = function () {
    // Update logic for Grendizer
  };
});
// Define the Bullet class for Grendizer
var HeroBullet = Container.expand(function () {
  var self = Container.call(this);
  var bulletGraphics = self.createAsset('heroBullet', 'Hero Bullet', 0.5, 0.5);
  self.speed = -10;
  self.move = function () {
    self.y += self.speed;
  };
});
// Define the Enemy class
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.createAsset('enemy', 'Enemy character', 0.5, 0.5);
  self.speed = 2;
  self.move = function () {
    self.y += self.speed;
  };
});
// Define the Boost class
var Boost = Container.expand(function () {
  var self = Container.call(this);
  var boostGraphics = self.createAsset('boost', 'Boost item', 0.5, 0.5);
  self.speed = 2;
  self.move = function () {
    self.y += self.speed;
  };
});

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

/****
* Game Code
****/
// Initialize important asset arrays
var heroBullets = [];
var enemies = [];
var boosts = [];
// Create the player's character
var player = game.addChild(new Grendizer());
player.x = 2048 / 2;
player.y = 2732 - player.height;
// Game tick event
LK.on('tick', function () {
  // Update player
  player.update();
  // Move and check hero bullets
  for (var i = heroBullets.length - 1; i >= 0; i--) {
    heroBullets[i].move();
    if (heroBullets[i].y < -heroBullets[i].height) {
      heroBullets[i].destroy();
      heroBullets.splice(i, 1);
    }
  }
  // Move and check enemies
  for (var j = enemies.length - 1; j >= 0; j--) {
    enemies[j].move();
    if (enemies[j].y > 2732 + enemies[j].height) {
      enemies[j].destroy();
      enemies.splice(j, 1);
    }
  }
  // Move and check boosts
  for (var k = boosts.length - 1; k >= 0; k--) {
    boosts[k].move();
    if (boosts[k].y > 2732 + boosts[k].height) {
      boosts[k].destroy();
      boosts.splice(k, 1);
    }
  }
  // Spawn enemies and boosts
  if (LK.ticks % 120 == 0) {
    var newEnemy = new Enemy();
    newEnemy.x = Math.random() * (2048 - newEnemy.width) + newEnemy.width / 2;
    newEnemy.y = -newEnemy.height;
    enemies.push(newEnemy);
    game.addChild(newEnemy);
  }
  if (LK.ticks % 300 == 0) {
    var newBoost = new Boost();
    newBoost.x = Math.random() * (2048 - newBoost.width) + newBoost.width / 2;
    newBoost.y = -newBoost.height;
    boosts.push(newBoost);
    game.addChild(newBoost);
  }
  // Check for collisions
  enemies.forEach(function (enemy) {
    if (player.intersects(enemy)) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
    heroBullets.forEach(function (bullet) {
      if (bullet.intersects(enemy)) {
        enemy.destroy();
        bullet.destroy();
        enemies.splice(enemies.indexOf(enemy), 1);
        heroBullets.splice(heroBullets.indexOf(bullet), 1);
      }
    });
  });
  boosts.forEach(function (boost) {
    if (player.intersects(boost)) {
      boost.destroy();
      boosts.splice(boosts.indexOf(boost), 1);
      // Implement boost effect here
    }
  });
});
// Touch event listeners for player movement
game.on('down', function (obj) {
  var touchPos = obj.event.getLocalPosition(game);
  if (touchPos.x < player.x) {
    player.moveLeft();
  } else {
    player.moveRight();
  }
});
// Fire bullets
game.on('down', function (obj) {
  var newBullet = new HeroBullet();
  newBullet.x = player.x;
  newBullet.y = player.y - player.height / 2;
  heroBullets.push(newBullet);
  game.addChild(newBullet);
});