/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0,
	currentLevel: 1
});

/**** 
* Classes
****/ 
var Button = Container.expand(function (text) {
	var self = Container.call(this);
	self.background = self.attachAsset('button', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.label = new Text2(text || "Button", {
		size: 50,
		fill: 0xFFFFFF
	});
	self.label.anchor.set(0.5, 0.5);
	self.addChild(self.label);
	// Set interactive
	self.interactive = true;
	return self;
});
// Define prototype methods for Button
var Card = Container.expand(function (cardNumber) {
	var self = Container.call(this);
	self.cardNumber = cardNumber || 0;
	self.revealed = false;
	self.matched = false;
	self.canFlip = false; // Flag to control when cards can be flipped
	// Card back (shown initially)
	self.back = self.attachAsset('cardBack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Card front (shown when flipped)
	self.front = self.attachAsset('cardFront', {
		anchorX: 0.5,
		anchorY: 0.5,
		visible: false
	});
	// Card number text
	self.numberText = new Text2(self.cardNumber.toString(), {
		size: 100,
		fill: 0x000000
	});
	self.numberText.anchor.set(0.5, 0.5);
	self.numberText.visible = false;
	self.addChild(self.numberText);
	// Make card interactive
	self.interactive = true;
	// Set size based on the card
	self.width = self.back.width;
	self.height = self.back.height;
	// Flip card to show front
	self.showFront = function () {
		if (!self.revealed) {
			self.back.visible = false;
			self.front.visible = true;
			self.numberText.visible = true;
			self.revealed = true;
			LK.getSound('flip').play();
		}
	};
	// Flip card to show back
	self.showBack = function () {
		if (self.revealed) {
			self.back.visible = true;
			self.front.visible = false;
			self.numberText.visible = false;
			self.revealed = false;
		}
	};
	self.down = function (x, y, obj) {
		// Handle card click
		if (gameState.gamePhase === "memorize" && self.canFlip) {
			// Create star burst effect at click location
			var localPos = {
				x: x,
				y: y
			};
			// Fix: use the clicked object's position directly since parent.toGlobal is causing an error
			var gamePos = {
				x: self.x,
				y: self.y
			};
			// Create and track the particles
			var particles = createStarBurst(gamePos.x, gamePos.y);
			activeParticles.push(particles);
			if (!self.revealed) {
				self.showFront();
				// Start the countdown timer when the first card is flipped
				if (!timerStarted) {
					timerStarted = true;
					countdownTimer.visible = true;
					countdownTimer.reset();
					countdownTimer.start();
				}
			} else {
				self.showBack();
			}
		}
	};
	return self;
});
var CountdownTimer = Container.expand(function (duration) {
	var self = Container.call(this);
	// Create circle background
	self.circle = LK.getAsset('centerCircle', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x4CAF50
	});
	self.addChild(self.circle);
	// Create text for countdown
	self.timeText = new Text2("15", {
		size: 80,
		fill: 0xFFFFFF
	});
	self.timeText.anchor.set(0.5, 0.5);
	self.addChild(self.timeText);
	// Timer properties
	self.duration = duration || 15; // Default 15 seconds
	self.timeRemaining = self.duration;
	self.active = false;
	self.timerInterval = null;
	// Start the countdown
	self.start = function () {
		if (self.active) return;
		self.active = true;
		self.timeRemaining = self.duration;
		self.updateDisplay();
		self.timerInterval = LK.setInterval(function () {
			self.timeRemaining--;
			self.updateDisplay();
			// Update circle scale based on time remaining
			var progress = self.timeRemaining / self.duration;
			self.circle.scale.set(progress);
			// Change color as time runs out
			if (self.timeRemaining <= 5) {
				self.circle.tint = 0xFF5252; // Red when time is running out
			}
			if (self.timeRemaining <= 0) {
				self.stop();
				if (typeof self.onComplete === 'function') {
					self.onComplete();
				}
			}
		}, 1000);
	};
	// Stop the countdown
	self.stop = function () {
		if (!self.active) return;
		self.active = false;
		if (self.timerInterval) {
			LK.clearInterval(self.timerInterval);
			self.timerInterval = null;
		}
	};
	// Reset the countdown
	self.reset = function () {
		self.stop();
		self.timeRemaining = self.duration;
		self.updateDisplay();
		self.circle.tint = 0x4CAF50; // Reset to green
		self.circle.scale.set(1);
	};
	// Update the display
	self.updateDisplay = function () {
		self.timeText.setText(Math.max(0, self.timeRemaining).toString());
	};
	return self;
});
var QuestionDisplay = Container.expand(function () {
	var self = Container.call(this);
	self.questionText = new Text2("", {
		size: 60,
		fill: 0xFFFFFF
	});
	// Set anchor to center for proper horizontal centering
	self.questionText.anchor.set(0.5, 0.5);
	self.addChild(self.questionText);
	self.setQuestion = function (question) {
		// Set the text content
		self.questionText.setText(question);
		// Reset position to ensure it's centered
		self.questionText.x = 0;
		self.questionText.y = 0;
	};
	return self;
});
var StarParticle = Container.expand(function () {
	var self = Container.call(this);
	// Create a star shape
	var star = LK.getAsset('centerCircle', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xFFD700,
		// Gold color
		scaleX: 0.2,
		scaleY: 0.2
	});
	self.addChild(star);
	// Set random properties for the particle
	self.vx = (Math.random() - 0.5) * 10; // Random x velocity
	self.vy = (Math.random() - 0.5) * 10; // Random y velocity
	self.lifespan = 30 + Math.random() * 60; // Random lifespan (0.5-1.5 seconds)
	// Update function for particle movement
	self.update = function () {
		// Move particle
		self.x += self.vx;
		self.y += self.vy;
		// Apply slight gravity
		self.vy += 0.1;
		// Decrease lifespan
		self.lifespan--;
		// Fade out as lifespan decreases
		self.alpha = self.lifespan / 90;
		// Remove when lifespan is over
		if (self.lifespan <= 0 && self.parent) {
			self.parent.removeChild(self);
			return true; // Return true to indicate particle should be removed
		}
		return false; // Particle should continue to exist
	};
	return self;
});

/**** 
* Initialize Game
****/ 
// Define prototype methods for Button
var game = new LK.Game({
	backgroundColor: 0x1A1A2E
});

/**** 
* Game Code
****/ 
// Define prototype methods for Button
// Game configuration
Button.prototype.over = function () {
	tween(this.background, {
		scaleX: 1.05,
		scaleY: 1.05
	}, {
		duration: 100
	});
};
Button.prototype.out = function () {
	tween(this.background, {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 100
	});
};
Button.prototype.down = function () {
	tween(this.background, {
		scaleX: 0.95,
		scaleY: 0.95
	}, {
		duration: 100
	});
};
Button.prototype.up = function () {
	tween(this.background, {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 100
	});
};
var config = {
	totalCards: 52,
	cardsPerRound: 4,
	initialViewTime: 5000,
	// 5 seconds to view cards initially
	viewTimeDecrement: 500,
	// Reduced by 500ms each level
	minViewTime: 1000,
	// Minimum viewing time of 1 second
	questionTypes: ["highestCard", "lowestCard", "sumOfCards", "specificPosition"]
};
// Game state
var gameState = {
	level: storage.currentLevel || 1,
	score: 0,
	highScore: storage.highScore || 0,
	currentDeck: [],
	selectedCards: [],
	currentQuestion: "",
	currentAnswer: null,
	gamePhase: "ready",
	// ready, memorize, question, result
	viewTime: config.initialViewTime
};
// Game elements
var cards = [];
var buttons = [];
var questionDisplay;
var overlay;
var scoreText;
var levelText;
var messageText;
var countdownTimer;
var timerStarted = false;
// Initialize the game
function initGame() {
	// Create deck
	createDeck();
	// Create UI elements
	createUI();
	// Play background music
	LK.playMusic('bgmusic');
	// Show welcome screen
	showWelcomeScreen();
}
// Create the full deck of cards
function createDeck() {
	gameState.currentDeck = [];
	for (var i = 1; i <= config.totalCards; i++) {
		gameState.currentDeck.push(i);
	}
}
// Create UI elements
function createUI() {
	// Add background image
	var background = LK.getAsset('background', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	background.x = 2048 / 2;
	background.y = 2732 / 2;
	game.addChild(background);
	// Create overlay for transitions
	overlay = LK.getAsset('overlay', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	});
	overlay.x = 2048 / 2;
	overlay.y = 2732 / 2;
	game.addChild(overlay);
	// Create score display
	scoreText = new Text2("Score: 0", {
		size: 50,
		fill: 0xFFFFFF
	});
	scoreText.anchor.set(0.5, 0);
	scoreText.x = 2048 / 2 - 200;
	scoreText.y = 50;
	LK.gui.addChild(scoreText);
	// Create level display
	levelText = new Text2("Level: 1", {
		size: 50,
		fill: 0xFFFFFF
	});
	levelText.anchor.set(0.5, 0);
	levelText.x = 2048 / 2 + 200;
	levelText.y = 50;
	LK.gui.addChild(levelText);
	// Create message text
	messageText = new Text2("", {
		size: 70,
		fill: 0xFFFFFF
	});
	// Set anchor to center for proper horizontal centering
	messageText.anchor.set(0.5, 0.5);
	// Position text in the center horizontally and near the top
	messageText.x = 2048 / 2;
	messageText.y = 400;
	LK.gui.addChild(messageText);
	// Create question display
	questionDisplay = new QuestionDisplay();
	questionDisplay.x = 2048 / 2;
	questionDisplay.y = 800;
	game.addChild(questionDisplay);
	questionDisplay.visible = false;
	// Create countdown timer
	countdownTimer = new CountdownTimer(15);
	countdownTimer.x = 2048 / 2;
	countdownTimer.y = 2732 - 200; // Position at bottom of screen
	countdownTimer.visible = false;
	countdownTimer.onComplete = function () {
		hideCards();
		generateQuestion();
	};
	game.addChild(countdownTimer);
}
// Show welcome screen
function showWelcomeScreen() {
	// Clear UI elements to prevent text overlap on restart
	if (scoreText) LK.gui.removeChild(scoreText);
	if (levelText) LK.gui.removeChild(levelText);
	if (messageText) LK.gui.removeChild(messageText);
	// Recreate UI elements
	// Create score display
	scoreText = new Text2("Score: 0", {
		size: 50,
		fill: 0xFFFFFF
	});
	scoreText.anchor.set(0.5, 0);
	scoreText.x = 2048 / 2 - 200;
	scoreText.y = 50;
	LK.gui.addChild(scoreText);
	// Create level display
	levelText = new Text2("Level: 1", {
		size: 50,
		fill: 0xFFFFFF
	});
	levelText.anchor.set(0.5, 0);
	levelText.x = 2048 / 2 + 200;
	levelText.y = 50;
	LK.gui.addChild(levelText);
	// Create message text
	messageText = new Text2("", {
		size: 70,
		fill: 0xFFFFFF
	});
	// Set anchor to center for proper horizontal centering
	messageText.anchor.set(0.5, 0.5);
	// Position text in the center horizontally and near the top
	messageText.x = 2048 / 2;
	messageText.y = 400;
	LK.gui.addChild(messageText);
	// Clear any previous message
	messageText.setText("");
	// Create title text with proper size and center it
	messageText.setText("Mind Deck\nTest your memory!");
	// Calculate the position for perfect centering near the top
	messageText.y = 300;
	// Create start button
	var startButton = new Button("Start Game");
	startButton.x = 2048 / 2;
	startButton.y = 1200;
	game.addChild(startButton);
	startButton.down = function () {
		Button.prototype.down.call(this);
	};
	startButton.up = function () {
		Button.prototype.up.call(this);
		game.removeChild(startButton);
		startGame();
	};
	// Update UI
	updateUI();
}
// Start a new game
function startGame() {
	// Reset game state if needed
	resetRound();
	// Start the first round
	startRound();
}
// Reset the current round
function resetRound() {
	// Clear previous cards
	for (var i = 0; i < cards.length; i++) {
		if (cards[i].parent) {
			cards[i].parent.removeChild(cards[i]);
		}
	}
	cards = [];
	// Clear previous buttons
	for (var j = 0; j < buttons.length; j++) {
		if (buttons[j].parent) {
			buttons[j].parent.removeChild(buttons[j]);
		}
	}
	buttons = [];
	// Reset game phase
	gameState.gamePhase = "ready";
	// Calculate view time based on level
	gameState.viewTime = Math.max(config.initialViewTime - (gameState.level - 1) * config.viewTimeDecrement, config.minViewTime);
	// Clear message text
	messageText.setText("");
	// Hide question display
	questionDisplay.visible = false;
	// Reset timer state
	timerStarted = false;
	countdownTimer.reset();
	countdownTimer.visible = false;
	// Update UI
	updateUI();
}
// Start a new round
function startRound() {
	// Clear any previous messages
	messageText.setText("");
	// Set new message
	messageText.setText("Get Ready!");
	// Fade in
	tween(overlay, {
		alpha: 0
	}, {
		duration: 500,
		onFinish: function onFinish() {
			// Draw cards for this round
			drawCards();
			// Show cards after a short delay
			LK.setTimeout(function () {
				messageText.setText("Memorize the cards!");
				showCards();
			}, 1000);
		}
	});
}
// Draw cards for the round
function drawCards() {
	// Shuffle the deck
	shuffleDeck();
	// Select cards for this round
	gameState.selectedCards = gameState.currentDeck.slice(0, config.cardsPerRound);
	// Create card objects
	var cardWidth = 300;
	var spacing = 50;
	var totalWidth = cardWidth * config.cardsPerRound + spacing * (config.cardsPerRound - 1);
	var startX = (2048 - totalWidth) / 2 + cardWidth / 2;
	for (var i = 0; i < config.cardsPerRound; i++) {
		var card = new Card(gameState.selectedCards[i]);
		card.x = startX + i * (cardWidth + spacing);
		card.y = 1200;
		game.addChild(card);
		cards.push(card);
	}
}
// Show cards to memorize
function showCards() {
	gameState.gamePhase = "memorize";
	// Make cards clickable
	for (var i = 0; i < cards.length; i++) {
		cards[i].canFlip = true;
	}
	// Show message to tell player to click cards
	messageText.setText("Click on cards to reveal them!\nCards will disappear in 15 seconds");
	// Move message to the left to fit on screen
	messageText.x = 2048 / 2 - 200;
	// Play flip sound
	LK.getSound('flip').play();
	// Timer for cards to disappear after 15 seconds
	LK.setTimeout(function () {
		// Only execute this timeout if the timer hasn't been started (no cards flipped)
		if (!timerStarted) {
			// Remove cards from game
			for (var i = 0; i < cards.length; i++) {
				// Create fade out animation for each card
				tween(cards[i], {
					alpha: 0
				}, {
					duration: 500,
					onFinish: function onFinish() {
						// After animation is complete, ensure cards are removed from game
						for (var j = 0; j < cards.length; j++) {
							if (cards[j].parent) {
								cards[j].parent.removeChild(cards[j]);
							}
						}
					}
				});
			}
			// Update message to inform player
			messageText.setText("Time's up! Answer the question from memory");
			// Automatically transition to question screen if no cards were flipped
			hideCards();
			generateQuestion();
		}
	}, 15000); // 15 seconds
}
// Hide cards and prepare question
function hideCards() {
	// Stop the countdown timer if it's running
	if (timerStarted) {
		countdownTimer.stop();
		countdownTimer.visible = false;
	}
	// Disable card flipping
	for (var i = 0; i < cards.length; i++) {
		cards[i].canFlip = false;
		cards[i].showBack();
	}
	// Play flip sound
	LK.getSound('flip').play();
	// Generate and display question
	generateQuestion();
}
// Generate a question about the cards
function generateQuestion() {
	gameState.gamePhase = "question";
	// Choose random question type
	var questionType = config.questionTypes[Math.floor(Math.random() * config.questionTypes.length)];
	switch (questionType) {
		case "highestCard":
			gameState.currentQuestion = "What was the highest card?";
			gameState.currentAnswer = Math.max.apply(null, gameState.selectedCards);
			createAnswerButtons(gameState.currentAnswer);
			break;
		case "lowestCard":
			gameState.currentQuestion = "What was the lowest card?";
			gameState.currentAnswer = Math.min.apply(null, gameState.selectedCards);
			createAnswerButtons(gameState.currentAnswer);
			break;
		case "sumOfCards":
			gameState.currentQuestion = "What was the sum of all cards?";
			var sum = 0;
			for (var i = 0; i < gameState.selectedCards.length; i++) {
				sum += gameState.selectedCards[i];
			}
			gameState.currentAnswer = sum;
			createAnswerButtons(gameState.currentAnswer);
			break;
		case "specificPosition":
			var position = Math.floor(Math.random() * config.cardsPerRound);
			var positionNames = ["first", "second", "third", "fourth"];
			gameState.currentQuestion = "What was the " + positionNames[position] + " card?";
			gameState.currentAnswer = gameState.selectedCards[position];
			createAnswerButtons(gameState.currentAnswer);
			break;
	}
	// Show question
	questionDisplay.setQuestion(gameState.currentQuestion);
	questionDisplay.visible = true;
	messageText.setText("Answer the question:");
}
// Create answer buttons
function createAnswerButtons(correctAnswer) {
	// Generate wrong answers
	var answers = [correctAnswer];
	while (answers.length < 4) {
		var wrongAnswer;
		// Generate a reasonable wrong answer based on correct answer
		if (correctAnswer <= 10) {
			wrongAnswer = Math.floor(Math.random() * 20) + 1;
		} else if (correctAnswer <= 52) {
			wrongAnswer = Math.floor(Math.random() * 52) + 1;
		} else {
			// For sums or other large numbers
			var variance = Math.floor(correctAnswer * 0.3);
			wrongAnswer = correctAnswer + Math.floor(Math.random() * variance * 2) - variance;
			wrongAnswer = Math.max(1, wrongAnswer);
		}
		// Make sure we don't add duplicates
		if (answers.indexOf(wrongAnswer) === -1) {
			answers.push(wrongAnswer);
		}
	}
	// Shuffle answers
	shuffleArray(answers);
	// Create buttons
	var buttonWidth = 400;
	var spacing = 50;
	var totalWidth = buttonWidth * 2 + spacing;
	var startX = (2048 - totalWidth) / 2 + buttonWidth / 2;
	for (var i = 0; i < answers.length; i++) {
		var button = new Button(answers[i].toString());
		// Position buttons in a 2x2 grid
		var row = Math.floor(i / 2);
		var col = i % 2;
		button.x = startX + col * (buttonWidth + spacing);
		button.y = 1500 + row * 150;
		// Store the answer value
		button.answerValue = answers[i];
		// Set up button handlers
		button.down = function () {
			Button.prototype.down.call(this);
		};
		button.up = function () {
			Button.prototype.up.call(this);
			checkAnswer(this.answerValue);
		};
		game.addChild(button);
		buttons.push(button);
	}
}
// Check if the answer is correct
function checkAnswer(answer) {
	gameState.gamePhase = "result";
	// Hide question
	questionDisplay.visible = false;
	// Check if correct
	if (answer === gameState.currentAnswer) {
		// Correct answer!
		messageText.setText("Correct!");
		// Update score
		gameState.score += gameState.level * 10;
		// Play correct sound
		LK.getSound('correct').play();
		// Move to next level after delay
		LK.setTimeout(function () {
			gameState.level++;
			storage.currentLevel = gameState.level;
			// Update high score if needed
			if (gameState.score > gameState.highScore) {
				gameState.highScore = gameState.score;
				storage.highScore = gameState.highScore;
			}
			// Play level up sound
			LK.getSound('levelUp').play();
			// Start next round
			resetRound();
			startRound();
		}, 1500);
	} else {
		// Wrong answer
		messageText.setText("Wrong! The correct answer was " + gameState.currentAnswer);
		// Play wrong sound
		LK.getSound('wrong').play();
		// Show game over after delay
		LK.setTimeout(function () {
			LK.showGameOver();
		}, 2000);
	}
	// Update UI
	updateUI();
}
// Update UI elements
function updateUI() {
	scoreText.setText("Score: " + gameState.score);
	levelText.setText("Level: " + gameState.level);
}
// Shuffle the deck
function shuffleDeck() {
	shuffleArray(gameState.currentDeck);
}
// Fisher-Yates shuffle algorithm
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;
}
// Function to create a burst of stars at a specific position
function createStarBurst(x, y) {
	var particles = [];
	var numParticles = 10 + Math.floor(Math.random() * 5); // 10-15 particles
	// Create particles
	for (var i = 0; i < numParticles; i++) {
		var particle = new StarParticle();
		particle.x = x;
		particle.y = y;
		game.addChild(particle);
		particles.push(particle);
	}
	return particles;
}
// Array to store active particle systems
var activeParticles = [];
// Game update loop
game.update = function () {
	// Update all active particles
	for (var i = activeParticles.length - 1; i >= 0; i--) {
		var particleSystem = activeParticles[i];
		var removeCount = 0;
		for (var j = particleSystem.length - 1; j >= 0; j--) {
			var particle = particleSystem[j];
			if (particle.update()) {
				particleSystem.splice(j, 1);
				removeCount++;
			}
		}
		// Remove empty particle systems
		if (particleSystem.length === 0) {
			activeParticles.splice(i, 1);
		}
	}
};
// Handle drag and drop
game.down = function (x, y, obj) {
	// Nothing needed for this game
};
game.up = function (x, y, obj) {
	// Nothing needed for this game
};
game.move = function (x, y, obj) {
	// Nothing needed for this game
};
// Initialize the game
initGame();

===================================================================
--- original.js
+++ change.js
@@ -83,10 +83,13 @@
 			var localPos = {
 				x: x,
 				y: y
 			};
-			var globalPos = obj.parent.toGlobal(localPos);
-			var gamePos = game.toLocal(globalPos);
+			// Fix: use the clicked object's position directly since parent.toGlobal is causing an error
+			var gamePos = {
+				x: self.x,
+				y: self.y
+			};
 			// Create and track the particles
 			var particles = createStarBurst(gamePos.x, gamePos.y);
 			activeParticles.push(particles);
 			if (!self.revealed) {