/****
* Classes
****/
// Assets will be automatically generated based on usage in the code.
// Athlete class
var Athlete = Container.expand(function () {
  var self = Container.call(this);
  var athleteGraphics = self.attachAsset('athlete', {
    anchorX: 0.5,
    anchorY: 1.0 // Anchor at the bottom center for realistic jumping
  });
  self.speedX = 5;
  self.jumpSpeed = -15;
  self.gravity = 0.5;
  self.isOnGround = true;
  self.moveRight = function () {
    self.x += self.speedX;
  };
  self.jump = function () {
    if (self.isOnGround) {
      self.isOnGround = false;
      self.speedY = self.jumpSpeed;
    }
  };
  self.update = function () {
    if (!self.isOnGround) {
      self.y += self.speedY;
      self.speedY += self.gravity;
      if (self.y >= game.groundLevel) {
        self.y = game.groundLevel;
        self.isOnGround = true;
      }
    }
  };
});
// Obstacle class
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 1.0 // Anchor at the bottom for collision detection
  });
  self.speedX = -5;
  self.move = function () {
    self.x += self.speedX;
  };
});

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

/****
* Game Code
****/
// Global variables
var athlete;
var obstacles = [];
var groundLevel = 2732 - 200; // Ground level set 200px from the bottom
var obstacleSpawnTicker = 0;
var obstacleSpawnRate = 120; // Spawn an obstacle every 2 seconds
// Initialize athlete
athlete = game.addChild(new Athlete());
athlete.x = 400;
athlete.y = groundLevel;
// Set the ground level globally accessible within the game instance
game.groundLevel = groundLevel;
// Touch event to make the athlete jump
game.on('down', function () {
  athlete.jump();
});
// Game tick event
LK.on('tick', function () {
  athlete.update();
  // Move obstacles and check for off-screen
  for (var i = obstacles.length - 1; i >= 0; i--) {
    obstacles[i].move();
    // Remove obstacle if it moves off-screen
    if (obstacles[i].x < -100) {
      // Assuming obstacle width is less than 100px
      obstacles[i].destroy();
      obstacles.splice(i, 1);
    }
  }
  // Spawn obstacles
  obstacleSpawnTicker++;
  if (obstacleSpawnTicker >= obstacleSpawnRate) {
    obstacleSpawnTicker = 0;
    var newObstacle = new Obstacle();
    newObstacle.x = 2048; // Start from the right edge
    newObstacle.y = groundLevel;
    obstacles.push(newObstacle);
    game.addChild(newObstacle);
  }
  // Check for collisions
  obstacles.forEach(function (obstacle) {
    if (athlete.intersects(obstacle)) {
      LK.effects.flashScreen(0xff0000, 500); // Flash screen red for half a second
      LK.showGameOver(); // Show game over screen
    }
  });
});