/****
* Classes
****/
// Define the Obstacle class
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.update = function () {
    self.x -= self.speed;
    if (self.x < -self.width) {
      self.destroy();
    }
  };
});
//<Assets used in the game will automatically appear here>
// Define the Player class
var Player = Container.expand(function () {
  var self = Container.call(this);
  var playerGraphics = self.attachAsset('player', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 10;
  self.jumpSpeed = -20;
  self.gravity = 1;
  self.isJumping = false;
  self.isFalling = false;
  self.update = function () {
    if (self.isJumping) {
      self.y += self.jumpSpeed;
      self.jumpSpeed += self.gravity;
      if (self.jumpSpeed >= 0) {
        self.isJumping = false;
        self.isFalling = true;
      }
    } else if (self.isFalling) {
      self.y += self.jumpSpeed;
      self.jumpSpeed += self.gravity;
      if (self.y >= game.groundLevel) {
        self.y = game.groundLevel;
        self.isFalling = false;
        self.jumpSpeed = -20;
      }
    }
  };
  self.jump = function () {
    if (!self.isJumping && !self.isFalling) {
      self.isJumping = true;
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x87CEEB // Sky blue background
});

/****
* Game Code
****/
// Initialize game variables
game.groundLevel = 2500;
game.obstacles = [];
game.score = 0;
// Create player instance
var player = game.addChild(new Player());
player.x = 200;
player.y = game.groundLevel;
// Create score text
var scoreTxt = new Text2('0', {
  size: 150,
  fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Function to handle player jump
game.down = function (x, y, obj) {
  player.jump();
};
// Function to spawn obstacles
function spawnObstacle() {
  var obstacle = new Obstacle();
  obstacle.x = 2048;
  obstacle.y = game.groundLevel;
  game.obstacles.push(obstacle);
  game.addChild(obstacle);
}
// Update game state
game.update = function () {
  player.update();
  for (var i = game.obstacles.length - 1; i >= 0; i--) {
    game.obstacles[i].update();
    if (player.intersects(game.obstacles[i])) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
  }
  if (LK.ticks % 60 == 0) {
    spawnObstacle();
    game.score++;
    scoreTxt.setText(game.score);
  }
};