/****
* Classes
****/
// Fairy class
var Fairy = Container.expand(function () {
  var self = Container.call(this);
  var fairyGraphics = self.createAsset('fairy', 'Fairy 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.moveUp = function () {
    self.y = Math.max(self.height / 2, self.y - self.speed);
  };
  self.moveDown = function () {
    self.y = Math.min(2732 - self.height / 2, self.y + self.speed);
  };
});
// Potion class
var Potion = Container.expand(function () {
  var self = Container.call(this);
  var potionGraphics = self.createAsset('potion', 'Witch potion', 0.5, 0.5);
  self.speed = 3;
  self.move = function () {
    self.y += self.speed;
    if (self.y > 2732 + self.height) {
      self.destroy();
    }
  };
});

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

/****
* Game Code
****/
// Initialize fairy
var fairy = game.addChild(new Fairy());
fairy.x = 1024; // Center horizontally
fairy.y = 2732 - 100; // Start near the bottom of the screen
// Initialize potions array
var potions = [];
// Handle touch movement
function handleTouchMove(obj) {
  var touchPos = obj.event.getLocalPosition(game);
  if (touchPos.x < fairy.x) {
    fairy.moveLeft();
  } else if (touchPos.x > fairy.x) {
    fairy.moveRight();
  }
  if (touchPos.y < fairy.y) {
    fairy.moveUp();
  } else if (touchPos.y > fairy.y) {
    fairy.moveDown();
  }
}
// Add touch move listener to the game
game.on('move', handleTouchMove);
// Game tick event
LK.on('tick', function () {
  // Move potions
  for (var i = potions.length - 1; i >= 0; i--) {
    potions[i].move();
    if (fairy.intersects(potions[i])) {
      // End game if fairy touches a potion
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
      return;
    }
  }
  // Spawn potions
  if (LK.ticks % 120 === 0) {
    // Spawn a potion every 2 seconds
    var potion = new Potion();
    potion.x = Math.random() * (2048 - potion.width) + potion.width / 2;
    potion.y = -potion.height / 2;
    potions.push(potion);
    game.addChild(potion);
  }
});