/****
* Classes
****/
// Bullet class
var Bullet = Container.expand(function () {
  var self = Container.call(this);
  var bulletGraphics = self.attachAsset('bullet', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = -10;
  self.update = function () {
    self.y += self.speed;
    // Check if the bullet is off-screen and needs to be removed
    if (self.y < -self.height) {
      self.destroy();
    }
  };
});
// Assets will be automatically created and loaded by the LK engine based on usage in the game code.
// Hero class
var Hero = Container.expand(function () {
  var self = Container.call(this);
  var heroGraphics = self.attachAsset('hero', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.update = function () {
    // Hero update logic, such as movement, can be added here.
  };
});
// Obstacle class
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.update = function () {
    self.y += self.speed;
    // Check if the obstacle is off-screen and needs to be removed
    if (self.y > 2732 + self.height) {
      self.destroy();
    }
  };
});

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

/****
* Game Code
****/
var hero;
var obstacles = [];
var bullets = [];
var score = 0;
var scoreTxt;
function spawnObstacle() {
  var obstacle = new Obstacle();
  obstacle.x = Math.random() * (2048 - obstacle.width) + obstacle.width / 2;
  obstacle.y = -obstacle.height / 2;
  obstacles.push(obstacle);
  game.addChild(obstacle);
}
function fireBullet() {
  var bullet = new Bullet();
  bullet.x = hero.x;
  bullet.y = hero.y - hero.height / 2 - bullet.height / 2;
  bullets.push(bullet);
  game.addChild(bullet);
}
function checkCollisions() {
  bullets.forEach(function (bullet, bulletIndex) {
    obstacles.forEach(function (obstacle, obstacleIndex) {
      if (bullet.intersects(obstacle)) {
        bullet.destroy();
        obstacle.destroy();
        bullets.splice(bulletIndex, 1);
        obstacles.splice(obstacleIndex, 1);
        score += 10;
        scoreTxt.setText("Score: " + score);
      }
    });
  });
}
// Initialize hero
hero = new Hero();
hero.x = 1024; // Center horizontally
hero.y = 2732 - 200; // Position from the bottom
game.addChild(hero);
// Initialize score display
scoreTxt = new Text2("Score: 0", {
  size: 100,
  fill: "#ffffff"
});
LK.gui.top.addChild(scoreTxt);
// Game update function
game.update = function () {
  if (LK.ticks % 120 == 0) {
    // Spawn an obstacle every 2 seconds
    spawnObstacle();
  }
  if (LK.ticks % 30 == 0) {
    // Fire a bullet every 0.5 seconds
    fireBullet();
  }
  checkCollisions();
};
// Touch event to move the hero
game.down = function (x, y, obj) {
  var gamePos = game.toLocal(obj.global);
  hero.x = gamePos.x;
};
game.move = function (x, y, obj) {
  var gamePos = game.toLocal(obj.global);
  hero.x = gamePos.x;
};