/****
* Classes
****/
// Cat class
var Cat = Container.expand(function () {
  var self = Container.call(this);
  var catGraphics = self.attachAsset('cat', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.jumpSpeed = -20;
  self.gravity = 1;
  self.velocityY = 0;
  self.update = function () {
    self.y += self.velocityY;
    self.velocityY += self.gravity;
    if (self.y > 2732 - catGraphics.height / 2) {
      self.y = 2732 - catGraphics.height / 2;
      self.velocityY = 0;
    }
  };
  self.jump = function () {
    self.velocityY = self.jumpSpeed;
  };
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Platform class
var Platform = Container.expand(function () {
  var self = Container.call(this);
  var platformGraphics = self.attachAsset('platform', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.update = function () {
    self.y += self.speed;
    if (self.y > 2732) {
      self.y = -platformGraphics.height;
      self.x = Math.random() * 2048;
    }
  };
});

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

/****
* Game Code
****/
// Initialize game elements
var platforms = [];
var cat = game.addChild(new Cat());
cat.x = 1024;
cat.y = 2000;
// Create platforms
for (var i = 0; i < 5; i++) {
  var platform = new Platform();
  platform.x = Math.random() * 2048;
  platform.y = i * 500;
  platforms.push(platform);
  game.addChild(platform);
}
// Handle game updates
game.update = function () {
  platforms.forEach(function (platform) {
    platform.update();
    if (cat.intersects(platform) && cat.velocityY > 0) {
      cat.jump();
    }
  });
  cat.update();
};
// Handle touch events
game.down = function (x, y, obj) {
  cat.jump();
};