/****
* Classes
****/
// Enemy class
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.attachAsset('enemy', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  // Enemy speed
  self.speed = 5;
  // Update enemy position
  self.update = function () {
    self.y += self.speed;
    // Check if enemy goes off screen
    if (self.y > 2732) {
      self.destroy();
    }
  };
});
// Assets initialization is handled automatically by the LK engine.
// Player class
var Player = Container.expand(function () {
  var self = Container.call(this);
  var playerGraphics = self.attachAsset('player', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  // Player movement speed
  self.speed = 10;
  // Update player position based on input
  self.update = function () {
    // Movement logic will be handled in the game's update function
  };
});

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

/****
* Game Code
****/
// Initialize player
var player = game.addChild(new Player());
player.x = 1024; // Center horizontally
player.y = 2400; // Position towards the bottom
// Initialize enemies array
var enemies = [];
// Handle touch input for player movement
var touchPosition = null;
game.down = function (x, y, obj) {
  touchPosition = {
    x: x,
    y: y
  };
};
game.move = function (x, y, obj) {
  if (touchPosition) {
    touchPosition = {
      x: x,
      y: y
    };
  }
};
game.up = function (x, y, obj) {
  touchPosition = null;
};
// Game update function
game.update = function () {
  // Move player based on touch input
  if (touchPosition) {
    player.x = touchPosition.x;
  }
  // Spawn enemies
  if (LK.ticks % 120 == 0) {
    // Every 2 seconds
    var enemy = new Enemy();
    enemy.x = Math.random() * 2048; // Random position across the width
    enemy.y = -100; // Start just above the screen
    enemies.push(enemy);
    game.addChild(enemy);
  }
  // Update enemies
  for (var i = enemies.length - 1; i >= 0; i--) {
    enemies[i].update();
    // Check for collision with player
    if (enemies[i].intersects(player)) {
      LK.effects.flashScreen(0xff0000, 500);
      LK.showGameOver();
      break;
    }
    // Remove enemies that have been destroyed
    if (!enemies[i].parent) {
      enemies.splice(i, 1);
    }
  }
};