/**** 
* Classes
****/
var Ball = Container.expand(function (assetName) {
	var self = Container.call(this);
	self.rotating = false;
	self.angle = 0;
	self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.rotateAround = function (otherBall) {
		self.angle += 0.025 * (path.level + 1);
		self.rotation = self.angle + 1.57;
		otherBall.rotation = self.rotation + 3.14;
		self.x = otherBall.x + otherBall.width * 2 * Math.cos(self.angle);
		self.y = otherBall.y + otherBall.width * 2 * Math.sin(self.angle);
	};
});
var FirstPathStep = Container.expand(function () {
	var self = Container.call(this);
	self.attachAsset('firstStep', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.disapear = function () {
		self.alpha = 1;
		self.timer = LK.setInterval(function () {
			self.alpha -= 0.01;
			if (self.alpha <= 0) {
				LK.clearInterval(self.timer);
				self.destroy();
			}
		}, 10);
	};
});
var LastPathStep = Container.expand(function () {
	var self = Container.call(this);
	self.attachAsset('lastStep', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});
var Path = Container.expand(function (level) {
	var self = Container.call(this);
	LK.setScore(level);
	self.level = level;
	self.levels = [
	// level 0
	[{
		x: 1024,
		y: 2400
	}, {
		x: 1024,
		y: 2200
	}, {
		x: 1024,
		y: 2000
	}, {
		x: 1024,
		y: 1800
	}],
	// level 1
	[{
		x: 1024,
		y: 2400
	}, {
		x: 1024,
		y: 2200
	}, {
		x: 824,
		y: 2200
	}, {
		x: 824,
		y: 2000
	}, {
		x: 824,
		y: 1800
	}, {
		x: 1024,
		y: 1800
	}, {
		x: 1224,
		y: 1800
	}, {
		x: 1424,
		y: 1800
	}, {
		x: 1424,
		y: 2000
	}, {
		x: 1424,
		y: 2200
	}, {
		x: 1624,
		y: 2200
	}, {
		x: 1824,
		y: 2200
	}, {
		x: 1824,
		y: 2000
	}, {
		x: 1824,
		y: 1800
	}, {
		x: 1824,
		y: 1600
	}, {
		x: 1824,
		y: 1400
	}, {
		x: 1824,
		y: 1200
	}, {
		x: 1624,
		y: 1200
	}, {
		x: 1424,
		y: 1200
	}, {
		x: 1224,
		y: 1200
	}, {
		x: 1024,
		y: 1200
	}, {
		x: 824,
		y: 1200
	}, {
		x: 624,
		y: 1200
	}, {
		x: 624,
		y: 1000
	}, {
		x: 624,
		y: 800
	}, {
		x: 624,
		y: 600
	}, {
		x: 624,
		y: 400
	}, {
		x: 624,
		y: 200
	}, {
		x: 824,
		y: 200
	}, {
		x: 1024,
		y: 200
	}, {
		x: 1224,
		y: 200
	}, {
		x: 1424,
		y: 200
	}]];
	if (self.level >= self.levels.length) {
		LK.showGameOver();
	}
	self.pathSteps = [];
	self.pathPositions = self.levels[self.level];
	self.addPathStep = function (position) {
		var step;
		if (self.curStep == 0) {
			step = self.addChild(new FirstPathStep());
		} else if (self.curStep == self.pathPositions.length - 1) {
			step = self.addChild(new LastPathStep());
		} else {
			step = self.addChild(new PathStep());
		}
		step.x = position.x;
		step.y = position.y;
		self.pathSteps.push(step);
	};
	self.curStep = 0;
	self.nextStep = function () {
		if (self.pathPositions && self.curStep < self.pathPositions.length) {
			self.addPathStep(self.pathPositions[self.curStep]);
			self.curStep++;
		}
	};
	self.setupPlayer = function (player) {
		self.curStep = 0;
		for (var i = 0; i < 10; i++) {
			self.nextStep();
		}
		if (self.pathPositions && self.pathPositions[0]) {
			player.init(self.pathPositions[0].x, self.pathPositions[0].y);
		} else {
			console.error('Path positions not defined');
		}
	};
});
var PathStep = Container.expand(function () {
	var self = Container.call(this);
	self.attachAsset('step', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.disapear = function () {
		self.alpha = 1;
		self.timer = LK.setInterval(function () {
			self.alpha -= 0.01;
			if (self.alpha <= 0) {
				LK.clearInterval(self.timer);
				self.destroy();
			}
		}, 10);
		for (var i = 0; i < 5; i++) {
			var starFX = new StarFX(i * (2 * Math.PI / 5));
			starFX.x = self.x;
			starFX.y = self.y;
			starFX.playFX();
			game.addChild(starFX);
		}
	};
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var ball1 = self.addChild(new Ball('playerBall1'));
	var ball2 = self.addChild(new Ball('playerBall2'));
	ball2.rotating = true;
	self.init = function (x, y) {
		ball1.x = x;
		ball1.y = y;
		ball1.rotating = false;
		ball2.rotating = true;
	};
	self.click = function () {
		var tempRotating = ball1.rotating;
		ball1.rotating = ball2.rotating;
		ball2.rotating = tempRotating;
		if (ball1.rotating) {
			ball1.rotation = ball1.angle = Math.atan2(ball1.y - ball2.y, ball1.x - ball2.x);
		} else if (ball2.rotating) {
			ball2.rotation = ball2.angle = Math.atan2(ball2.y - ball1.y, ball2.x - ball1.x);
		}
		var onStep1 = false;
		var onStep2 = false;
		var smallPathStep = 9999;
		for (var i = 0; i < path.pathSteps.length; i++) {
			if (path.pathSteps[i]) {
				if (IsMatching(path.pathSteps[i], ball1)) {
					onStep1 = true;
					smallPathStep = Math.min(smallPathStep, i);
				}
				if (IsMatching(path.pathSteps[i], ball2)) {
					onStep2 = true;
					smallPathStep = Math.min(smallPathStep, i);
				}
			}
		}
		if (!(onStep1 && onStep2)) {
			LK.showGameOver();
		} else {
			for (var i = 0; i < 6.28; i += 6.28 / 5) {
				var starFX = new StarFX();
				starFX.x = path.pathSteps[smallPathStep].x;
				starFX.y = path.pathSteps[smallPathStep].y;
				starFX.direction = i;
				game.addChild(starFX);
				starFX.playFX();
			}
			path.pathSteps[smallPathStep].disapear();
			path.pathSteps.splice(smallPathStep, 1);
			path.nextStep();
			if (path.pathSteps.length == 1) {
				showCongratsPopup();
			}
		}
	};
	self.rotate = function () {
		if (ball1.rotating) {
			ball1.rotateAround(ball2);
		} else if (ball2.rotating) {
			ball2.rotateAround(ball1);
		}
	};
});
var StarFX = Container.expand(function (direction) {
	var self = Container.call(this);
	self.attachAsset('starFX', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.direction = direction;
	self.playFX = function () {
		self.alpha = 1;
		self.timer = LK.setInterval(function () {
			self.alpha -= 0.03;
			self.x += Math.cos(self.direction) * 10;
			self.y += Math.sin(self.direction) * 10;
			if (self.alpha <= 0) {
				LK.clearInterval(self.timer);
				self.destroy();
			}
		}, 10);
	};
});

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

/**** 
* Game Code
****/
// Initialize player ship asset
// Initialize obstacle asset
// Initialize background stars
var IsMatching = function IsMatching(obj1, obj2) {
	var diffX = obj1.x - obj2.x;
	var diffY = obj1.y - obj2.y;
	return diffX * diffX + diffY * diffY <= 1000;
};
function showCongratsPopup() {
	game.removeChild(path);
	game.removeChild(player);
	path = new Path(path.level + 1);
	path.setupPlayer(player);
	game.addChild(path);
	game.addChild(player);
}
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1366
}));
var player = new Player();
var path = new Path(0);
game.addChild(path);
game.addChild(player);
path.setupPlayer(player);
game.on('down', function (obj) {
	player.click();
});
LK.on('tick', function () {
	// Move obstacles
	player.rotate();
});

===================================================================
--- original.js
+++ change.js
@@ -216,9 +216,8 @@
 			starFX.y = self.y;
 			starFX.playFX();
 			game.addChild(starFX);
 		}
-		// LK.playSound('step_disappear');
 	};
 });
 var Player = Container.expand(function () {
 	var self = Container.call(this);