/****
* Classes
****/
// 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.move = function () {
    self.x += self.speed;
    // Destroy obstacle when it moves off screen
    if (self.x < -100) {
      self.destroy();
    }
  };
});
// Assets will be automatically generated 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: 0.5
  });
  self.gravity = -1; // Start with gravity pulling upwards
  self.flipGravity = function () {
    self.gravity *= -1;
  };
  self.update = function () {
    self.y += 10 * self.gravity;
    // Prevent player from going out of bounds
    if (self.y < 0) self.y = 0;
    if (self.y > 2732) self.y = 2732;
  };
});

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

/****
* Game Code
****/
var player = game.addChild(new Player());
player.x = 1024; // Center horizontally
player.y = 1366; // Center vertically
var obstacles = []; // Array to keep track of obstacles
// Create obstacles at intervals
var obstacleTimer = LK.setInterval(function () {
  var obstacle = new Obstacle();
  obstacle.x = 2048; // Start from the right edge
  obstacle.y = Math.random() * 2732; // Random height
  obstacles.push(obstacle);
  game.addChild(obstacle);
}, 2000); // Create an obstacle every 2 seconds
// Listen for touch events to flip gravity
game.on('down', function () {
  player.flipGravity();
});
// Update game state on each tick
LK.on('tick', function () {
  player.update();
  obstacles.forEach(function (obstacle) {
    obstacle.move();
    // Check for collision with player
    if (player.intersects(obstacle)) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
  });
  // Remove obstacles that have been destroyed
  obstacles = obstacles.filter(function (obstacle) {
    return !obstacle._destroyed;
  });
});