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

/**** 
* Classes
****/ 
var Card = Container.expand(function (cardType) {
	var self = Container.call(this);
	self.cardType = cardType;
	self.isFlipped = false;
	self.isMatched = false;
	self.isRevealed = false;
	var cardBack = self.attachAsset('cardBack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var cardFront = self.attachAsset('cardFront' + cardType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	cardFront.visible = false;
	self.showFront = function () {
		if (self.isMatched) return;
		cardBack.visible = false;
		cardFront.visible = true;
		self.isFlipped = true;
		LK.getSound('cardFlip').play();
	};
	self.showBack = function () {
		if (self.isMatched) return;
		cardBack.visible = true;
		cardFront.visible = false;
		self.isFlipped = false;
	};
	self.setMatched = function () {
		self.isMatched = true;
		self.isFlipped = true;
		tween(self, {
			alpha: 0
		}, {
			duration: 500
		});
	};
	self.down = function (x, y, obj) {
		if (gameState !== 'playing' || self.isMatched || self.isFlipped) return;
		if (flippedCards.length >= 2) return;
		self.showFront();
		flippedCards.push(self);
		if (flippedCards.length === 2) {
			LK.setTimeout(function () {
				checkMatch();
			}, 1000);
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xff0000
});

/**** 
* Game Code
****/ 
var cards = [];
var flippedCards = [];
var gameState = 'preview'; // 'preview', 'playing', 'finished'
var previewTimer = null;
var pairsFound = 0;
var timerText = new Text2('10', {
	size: 120,
	fill: 0xFFFFFF
});
timerText.anchor.set(0.5, 0);
LK.gui.top.addChild(timerText);
var instructionText = new Text2('Ülker Lezzet Evreni', {
	size: 80,
	fill: 0xFFFFFF
});
instructionText.anchor.set(0.5, 1);
LK.gui.bottom.addChild(instructionText);
// Create shuffled array of card types (18 pairs)
var cardTypes = [];
for (var i = 1; i <= 18; i++) {
	cardTypes.push(i);
	cardTypes.push(i);
}
// Shuffle the array
for (var i = cardTypes.length - 1; i > 0; i--) {
	var j = Math.floor(Math.random() * (i + 1));
	var temp = cardTypes[i];
	cardTypes[i] = cardTypes[j];
	cardTypes[j] = temp;
}
// Create 6x6 grid of cards
var cardIndex = 0;
var startX = 2048 / 2 - 6 * 280 / 2 + 140;
var startY = 2732 / 2 - 6 * 280 / 2 + 240;
for (var row = 0; row < 6; row++) {
	for (var col = 0; col < 6; col++) {
		var card = new Card(cardTypes[cardIndex]);
		card.x = startX + col * 280;
		card.y = startY + row * 280;
		cards.push(card);
		game.addChild(card);
		cardIndex++;
	}
}
// Show all cards during preview
for (var i = 0; i < cards.length; i++) {
	cards[i].showFront();
	cards[i].isRevealed = true;
}
// Start preview countdown
var previewTimeLeft = 10;
previewTimer = LK.setInterval(function () {
	previewTimeLeft--;
	timerText.setText(previewTimeLeft.toString());
	if (previewTimeLeft <= 0) {
		LK.clearInterval(previewTimer);
		startGame();
	}
}, 1000);
function startGame() {
	gameState = 'playing';
	instructionText.setText('Ülker Lezzet Evreni');
	timerText.setText('');
	// Flip all cards back
	for (var i = 0; i < cards.length; i++) {
		cards[i].showBack();
		cards[i].isRevealed = false;
	}
}
function checkMatch() {
	if (flippedCards.length !== 2) return;
	var card1 = flippedCards[0];
	var card2 = flippedCards[1];
	if (card1.cardType === card2.cardType) {
		// Match found
		card1.setMatched();
		card2.setMatched();
		pairsFound++;
		LK.getSound('matchFound').play();
		if (pairsFound === 18) {
			gameState = 'finished';
			LK.setTimeout(function () {
				LK.showYouWin();
			}, 1000);
		}
	} else {
		// No match, flip back
		card1.showBack();
		card2.showBack();
	}
	flippedCards = [];
}
game.update = function () {
	// Game logic handled by events and timers
};

===================================================================
--- original.js
+++ change.js
@@ -60,9 +60,9 @@
 /**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundColor: 0x2d3436
+	backgroundColor: 0xff0000
 });
 
 /**** 
 * Game Code