/****
* Classes
****/
// Assets will be automatically created and loaded by the LK engine based on their usage in the code.
// For example, a bird asset will be created when we use LK.getAsset('bird').
// Bird class to represent the player-controlled bird
var Bird = Container.expand(function () {
  var self = Container.call(this);
  var birdGraphics = self.attachAsset('bird', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedY = 0;
  self.gravity = 0.5;
  self.flapStrength = -10;
  // Update method to apply gravity and move the bird
  self.update = function () {
    self.speedY += self.gravity;
    self.y += self.speedY;
    // Check for collision with the top and bottom of the screen
    if (self.y < 0) {
      self.y = 0;
      self.speedY = 0;
    } else if (self.y > 2732 - birdGraphics.height) {
      self.y = 2732 - birdGraphics.height;
      self.speedY = 0;
    }
  };
  // Method to make the bird flap
  self.flap = function () {
    self.speedY = self.flapStrength;
  };
});
// Wall class to represent the walls the bird must avoid
var Wall = Container.expand(function () {
  var self = Container.call(this);
  var wallGraphics = self.attachAsset('wall', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedX = -5;
  // Update method to move the wall
  self.update = function () {
    self.x += self.speedX;
    // Remove the wall if it goes off screen
    if (self.x < -wallGraphics.width) {
      self.destroy();
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x87CEEB // Light blue background to represent the sky
});

/****
* Game Code
****/
// Initialize game variables
var bird;
var walls = [];
var wallInterval;
var score = 0;
var scoreTxt;
// Function to start the game
function startGame() {
  // Create the bird and add it to the game
  bird = game.addChild(new Bird());
  bird.x = 2048 / 4;
  bird.y = 2732 / 2;
  // Create score text
  scoreTxt = new Text2('Score: 0', {
    size: 100,
    fill: "#ffffff"
  });
  scoreTxt.anchor.set(0.5, 0);
  LK.gui.top.addChild(scoreTxt);
  // Set interval to create walls
  wallInterval = LK.setInterval(createWall, 2000);
}
// Function to create a new wall
function createWall() {
  var wall = new Wall();
  wall.x = 2048;
  wall.y = Math.random() * (2732 - 400) + 200; // Random y position
  walls.push(wall);
  game.addChild(wall);
}
// Function to update the game state
game.update = function () {
  bird.update();
  // Update each wall
  for (var i = walls.length - 1; i >= 0; i--) {
    walls[i].update();
    // Check for collision with the bird
    if (bird.intersects(walls[i])) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
    // Remove walls that are off screen
    if (walls[i].x < -walls[i].width) {
      walls[i].destroy();
      walls.splice(i, 1);
      score++;
      scoreTxt.setText('Score: ' + score);
    }
  }
};
// Event listener for touch or mouse down to make the bird flap
game.down = function (x, y, obj) {
  bird.flap();
};
// Start the game
startGame();