/**** 
* 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;
	var cardBack = self.attachAsset('cardBack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var cardFront = self.attachAsset('cardFront' + cardType, {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	});
	self.flip = function () {
		if (self.isFlipped || self.isMatched) return;
		self.isFlipped = true;
		LK.getSound('flip').play();
		// Flip animation
		tween(cardBack, {
			scaleX: 0
		}, {
			duration: 150,
			onFinish: function onFinish() {
				cardBack.alpha = 0;
				cardFront.alpha = 1;
				cardFront.scaleX = 0;
				tween(cardFront, {
					scaleX: 1
				}, {
					duration: 150
				});
			}
		});
	};
	self.flipBack = function () {
		if (!self.isFlipped || self.isMatched) return;
		self.isFlipped = false;
		// Flip back animation
		tween(cardFront, {
			scaleX: 0
		}, {
			duration: 150,
			onFinish: function onFinish() {
				cardFront.alpha = 0;
				cardBack.alpha = 1;
				cardBack.scaleX = 0;
				tween(cardBack, {
					scaleX: 1
				}, {
					duration: 150
				});
			}
		});
	};
	self.setMatched = function () {
		self.isMatched = true;
		// Slight scale animation to show match
		tween(self, {
			scaleX: 1.1,
			scaleY: 1.1
		}, {
			duration: 200,
			onFinish: function onFinish() {
				tween(self, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 200
				});
			}
		});
	};
	self.down = function (x, y, obj) {
		if (gameState === 'playing' && !self.isFlipped && !self.isMatched && timeLeft > 0) {
			handleCardClick(self);
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2C3E50
});

/**** 
* Game Code
****/ 
var gameState = 'playing';
var cards = [];
var flippedCards = [];
var moves = 0;
var matchedPairs = 0;
var totalPairs = 8;
var timeLeft = 150;
var gameTimer;
// Grid configuration
var gridCols = 4;
var gridRows = 4;
var cardSpacing = 220;
var startX = (2048 - (gridCols - 1) * cardSpacing) / 2;
var startY = (2732 - (gridRows - 1) * cardSpacing) / 2;
// Create score display
var scoreText = new Text2('Moves: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
// Create timer display
var timerText = new Text2('Time: 150', {
	size: 80,
	fill: 0xFFFFFF
});
timerText.anchor.set(0.5, 0);
timerText.y = 100;
LK.gui.top.addChild(timerText);
// Create card types array (2 of each type for pairs)
var cardTypes = [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8];
// Shuffle function
function shuffleArray(array) {
	for (var i = array.length - 1; i > 0; i--) {
		var j = Math.floor(Math.random() * (i + 1));
		var temp = array[i];
		array[i] = array[j];
		array[j] = temp;
	}
	return array;
}
// Initialize game board
function initializeBoard() {
	shuffleArray(cardTypes);
	for (var row = 0; row < gridRows; row++) {
		for (var col = 0; col < gridCols; col++) {
			var index = row * gridCols + col;
			var card = new Card(cardTypes[index]);
			card.x = startX + col * cardSpacing;
			card.y = startY + row * cardSpacing;
			cards.push(card);
			game.addChild(card);
		}
	}
}
// Handle card click
function handleCardClick(card) {
	if (flippedCards.length >= 2) return;
	card.flip();
	flippedCards.push(card);
	if (flippedCards.length === 2) {
		moves++;
		scoreText.setText('Moves: ' + moves);
		// Check for match after a short delay
		LK.setTimeout(function () {
			checkForMatch();
		}, 1000);
	}
}
// Check if flipped cards match
function checkForMatch() {
	if (flippedCards.length !== 2) return;
	var card1 = flippedCards[0];
	var card2 = flippedCards[1];
	if (card1.cardType === card2.cardType) {
		// Match found
		LK.getSound('match').play();
		card1.setMatched();
		card2.setMatched();
		matchedPairs++;
		// Check if game is won
		if (matchedPairs === totalPairs) {
			LK.clearInterval(gameTimer);
			LK.setTimeout(function () {
				LK.setScore(Math.max(1000 - moves * 10, 100));
				LK.showYouWin();
			}, 500);
		}
	} else {
		// No match
		LK.getSound('noMatch').play();
		card1.flipBack();
		card2.flipBack();
	}
	flippedCards = [];
}
// Add background
var background = game.attachAsset('background', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2
});
// Start the timer
gameTimer = LK.setInterval(function () {
	timeLeft--;
	timerText.setText('Time: ' + timeLeft);
	if (timeLeft <= 0) {
		LK.clearInterval(gameTimer);
		gameState = 'gameOver';
		LK.showGameOver();
	}
}, 1000);
// Initialize the game
initializeBoard();
// Game update loop
game.update = function () {
	// Game logic is handled by events and timers
	// No continuous updates needed for this game
};

===================================================================
--- original.js
+++ change.js
@@ -79,9 +79,9 @@
 			}
 		});
 	};
 	self.down = function (x, y, obj) {
-		if (gameState === 'playing' && !self.isFlipped && !self.isMatched) {
+		if (gameState === 'playing' && !self.isFlipped && !self.isMatched && timeLeft > 0) {
 			handleCardClick(self);
 		}
 	};
 	return self;
@@ -102,8 +102,10 @@
 var flippedCards = [];
 var moves = 0;
 var matchedPairs = 0;
 var totalPairs = 8;
+var timeLeft = 150;
+var gameTimer;
 // Grid configuration
 var gridCols = 4;
 var gridRows = 4;
 var cardSpacing = 220;
@@ -115,8 +117,16 @@
 	fill: 0xFFFFFF
 });
 scoreText.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreText);
+// Create timer display
+var timerText = new Text2('Time: 150', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+timerText.anchor.set(0.5, 0);
+timerText.y = 100;
+LK.gui.top.addChild(timerText);
 // Create card types array (2 of each type for pairs)
 var cardTypes = [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8];
 // Shuffle function
 function shuffleArray(array) {
@@ -168,8 +178,9 @@
 		card2.setMatched();
 		matchedPairs++;
 		// Check if game is won
 		if (matchedPairs === totalPairs) {
+			LK.clearInterval(gameTimer);
 			LK.setTimeout(function () {
 				LK.setScore(Math.max(1000 - moves * 10, 100));
 				LK.showYouWin();
 			}, 500);
@@ -188,8 +199,18 @@
 	anchorY: 0.5,
 	x: 2048 / 2,
 	y: 2732 / 2
 });
+// Start the timer
+gameTimer = LK.setInterval(function () {
+	timeLeft--;
+	timerText.setText('Time: ' + timeLeft);
+	if (timeLeft <= 0) {
+		LK.clearInterval(gameTimer);
+		gameState = 'gameOver';
+		LK.showGameOver();
+	}
+}, 1000);
 // Initialize the game
 initializeBoard();
 // Game update loop
 game.update = function () {