/**** 
* Plugins
****/ 
var facekit = LK.import("@upit/facekit.v1");

/**** 
* Classes
****/ 
// Create main game container
var GameContainer = Container.expand(function () {
	var self = Container.call(this);
	// Create staff lines
	self.createStaffLines = function () {
		// Vertical line
		var verticalLine = new Container();
		verticalLine.sprite = LK.getAsset('line', {});
		verticalLine.sprite.x = NOTE_LINE_X;
		verticalLine.sprite.scaleX = 0.1;
		verticalLine.sprite.scaleY = LK.height;
		self.addChild(verticalLine);
		// Horizontal lines
		var lineSpacing = LK.height * 0.6 / 4;
		var startY = (LK.height - lineSpacing * 4) / 2;
		for (var i = 0; i < 5; i++) {
			var line = new Container();
			line.sprite = LK.getAsset('line', {});
			line.sprite.scaleX = LK.width;
			line.sprite.scaleY = 0.1;
			line.sprite.y = startY + i * lineSpacing;
			self.addChild(line);
		}
	};
	// Create player orb and lives
	self.createPlayerElements = function () {
		self.playerOrb = new Container();
		self.playerOrb.sprite = LK.getAsset('orb', {});
		self.playerOrb.sprite.x = NOTE_LINE_X;
		self.playerOrb.sprite.y = LK.height / 2;
		self.addChild(self.playerOrb);
		// Create life indicators
		for (var i = 0; i < LIVES; i++) {
			var life = new Container();
			life.sprite = LK.getAsset('orb', {});
			life.sprite.x = 30 + i * 40;
			life.sprite.y = LK.height - 30;
			lifeOrbs.push(life);
			self.addChild(life);
		}
		// Score display
		self.scoreText = new Text("0");
		self.scoreText.x = LK.width / 2;
		self.scoreText.y = 30;
		self.addChild(self.scoreText);
	};
	self.init = function () {
		self.createStaffLines();
		self.createPlayerElements();
	};
	self.update = function () {
		// Check volume and update player orb
		if (facekit.volume > VOLUME_THRESHOLD) {
			var targetY = self.convertPitchToY(facekit.pitch);
			// Smooth movement
			self.playerOrb.sprite.y += (targetY - self.playerOrb.sprite.y) * 0.15;
		}
		// Update active notes
		for (var i = notesActive.length - 1; i >= 0; i--) {
			var note = notesActive[i];
			note.sprite.x -= NOTE_SPEED;
			// Check for collision at vertical line
			if (Math.abs(note.sprite.x - NOTE_LINE_X) < 5) {
				self.checkNoteHit(note);
			}
			// Remove if passed screen
			if (note.sprite.x < 0) {
				self.showMiss(NOTE_LINE_X, note.sprite.y);
				self.removeChild(note);
				notesActive.splice(i, 1);
				self.loseLife();
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
//<Assets used in the game will automatically appear here>
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
//<Assets used in the game will automatically appear here>
// Game update function
// Constants
var VOLUME_THRESHOLD = 50;
var NOTE_LINE_X = LK.width * 0.2;
var LIVES = 3;
var NOTE_SPEED = 3;
// Game state
var score = 0;
var lives = LIVES;
var lifeOrbs = [];
var notesActive = [];
var gameContainer = new GameContainer();
game.addChild(gameContainer);
gameContainer.init();
game.update = function () {};

===================================================================
--- original.js
+++ change.js
@@ -1,5 +1,10 @@
 /**** 
+* Plugins
+****/ 
+var facekit = LK.import("@upit/facekit.v1");
+
+/**** 
 * Classes
 ****/ 
 // Create main game container
 var GameContainer = Container.expand(function () {
@@ -81,16 +86,16 @@
 /**** 
 * Initialize Game
 ****/ 
 //<Assets used in the game will automatically appear here>
-//<Write imports for supported plugins here>
 var game = new LK.Game({
 	backgroundColor: 0x000000 //Init game with black background 
 });
 
 /**** 
 * Game Code
 ****/ 
+//<Assets used in the game will automatically appear here>
 // Game update function
 // Constants
 var VOLUME_THRESHOLD = 50;
 var NOTE_LINE_X = LK.width * 0.2;