/****
* Classes
****/
// 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 easier ground alignment
  });
  self.speedX = -5;
  self.move = function () {
    self.x += self.speedX;
  };
  self.isOffScreen = function () {
    return self.x < -obstacleGraphics.width;
  };
});
// Assets are automatically created based on usage in the code.
// Player class
var Player = Container.expand(function () {
  var self = Container.call(this);
  var playerGraphics = self.attachAsset('player', {
    anchorX: 0.5,
    anchorY: 1.0 // Anchor at the bottom center for easier ground alignment
  });
  self.speedY = 0;
  self.gravity = 0.5;
  self.jumpPower = -15;
  self.grounded = false;
  self.update = function () {
    // Apply gravity
    if (!self.grounded) {
      self.speedY += self.gravity;
      self.y += self.speedY;
    }
    // Check for ground
    if (self.y >= game.height - playerGraphics.height) {
      self.y = game.height - playerGraphics.height;
      self.grounded = true;
      self.speedY = 0;
    }
  };
  self.jump = function () {
    if (self.grounded) {
      self.speedY = self.jumpPower;
      self.grounded = false;
    }
  };
});

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

/****
* Game Code
****/
var player = game.addChild(new Player());
player.x = 200;
player.y = game.height - 100; // Start position near the bottom of the screen
var obstacles = [];
var spawnObstacleTimer = 0;
var spawnObstacleInterval = 120; // Frames until next obstacle spawns
game.on('down', function (obj) {
  player.jump();
});
LK.on('tick', function () {
  player.update();
  // Handle obstacle movement and cleanup
  for (var i = obstacles.length - 1; i >= 0; i--) {
    obstacles[i].move();
    if (obstacles[i].isOffScreen()) {
      obstacles[i].destroy();
      obstacles.splice(i, 1);
    } else if (player.intersects(obstacles[i])) {
      // Game over logic
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
  }
  // Spawn obstacles
  spawnObstacleTimer++;
  if (spawnObstacleTimer >= spawnObstacleInterval) {
    var obstacle = game.addChild(new Obstacle());
    obstacle.x = game.width;
    obstacle.y = game.height - 100; // Position at ground level
    obstacles.push(obstacle);
    spawnObstacleTimer = 0;
  }
});