/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	currentCategory: "space",
	progress: {
		space: 0,
		wildlife: 0,
		anatomy: 0
	},
	currentLevel: 1,
	highestLevel: 1
});

/**** 
* Classes
****/ 
var CategoryButton = Container.expand(function (category, title, description) {
	var self = Container.call(this);
	var buttonShape = self.attachAsset(category + 'Theme', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var titleText = new Text2(title, {
		size: 80,
		fill: 0x101010
	});
	titleText.anchor.set(0.5, 0);
	titleText.y = -80;
	self.addChild(titleText);
	var descText = new Text2(description, {
		size: 30,
		fill: 0x101010
	});
	descText.anchor.set(0.5, 0);
	descText.y = 10;
	descText.wordWrap = true;
	descText.wordWrapWidth = 450;
	self.addChild(descText);
	var progressLabel = new Text2("Progress: 0%", {
		size: 40,
		fill: 0x101010
	});
	progressLabel.anchor.set(0.5, 0);
	progressLabel.y = 80;
	self.addChild(progressLabel);
	self.category = category;
	self.updateProgress = function (progress) {
		progressLabel.setText("Progress: " + Math.floor(progress * 100) + "%");
	};
	self.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		buttonShape.alpha = 0.7;
	};
	self.up = function (x, y, obj) {
		buttonShape.alpha = 1;
		selectCategory(self.category);
	};
	return self;
});
var OptionButton = Container.expand(function (text) {
	var self = Container.call(this);
	var buttonShape = self.attachAsset('optionButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var optionText = new Text2(text, {
		size: 50,
		fill: 0x101010
	});
	optionText.anchor.set(0.5, 0.5);
	self.addChild(optionText);
	self.isCorrect = false;
	self.setText = function (text) {
		optionText.setText(text);
	};
	self.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		buttonShape.alpha = 0.9;
	};
	self.up = function (x, y, obj) {
		buttonShape.alpha = 1;
		checkAnswer(self);
	};
	self.setEnabled = function (enabled) {
		self.interactive = enabled;
		buttonShape.alpha = enabled ? 1 : 0.5;
	};
	return self;
});
var ProgressBar = Container.expand(function () {
	var self = Container.call(this);
	var barBackground = self.attachAsset('progressBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	var barFill = self.attachAsset('progressFill', {
		anchorX: 0,
		anchorY: 0.5
	});
	var levelText = new Text2("Level 1", {
		size: 40,
		fill: 0x101010
	});
	levelText.anchor.set(0.5, 0.5);
	levelText.x = barBackground.width / 2;
	self.addChild(levelText);
	self.updateProgress = function (current, total) {
		var percentage = current / total;
		var targetWidth = barBackground.width * percentage;
		tween(barFill, {
			width: targetWidth
		}, {
			duration: 500,
			easing: tween.easeOut
		});
		levelText.setText("Level " + storage.currentLevel);
	};
	return self;
});
var QuestionPanel = Container.expand(function () {
	var self = Container.call(this);
	var panel = self.attachAsset('questionPanel', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var questionText = new Text2("", {
		size: 50 * (1 + currentQuestionIndex * 0.1),
		// Increase font size by 10% for each question
		fill: 0x101010
	});
	questionText.anchor.set(0.5, 0);
	questionText.y = -250;
	questionText.wordWrap = true;
	questionText.wordWrapWidth = 1700;
	self.addChild(questionText);
	self.options = [];
	for (var i = 0; i < 4; i++) {
		var option = new OptionButton("");
		option.x = i % 2 === 0 ? -400 : 400;
		option.y = i < 2 ? 0 : 150;
		self.options.push(option);
		self.addChild(option);
	}
	var feedbackIcon = self.attachAsset({
		anchorX: 0.5,
		anchorY: 0.5
	}, {});
	feedbackIcon.visible = false;
	var feedbackText = new Text2("", {
		size: 45
	});
	feedbackText.anchor.set(0.5, 0.5);
	feedbackText.y = 350;
	feedbackText.wordWrap = true;
	feedbackText.wordWrapWidth = 1700;
	self.addChild(feedbackText);
	var nextButton = new OptionButton("Next Question");
	nextButton.y = 850;
	nextButton.visible = false;
	self.addChild(nextButton);
	nextButton.up = function () {
		if (nextButton.buttonShape) {
			nextButton.buttonShape.alpha = 1;
		}
		loadNextQuestion();
	};
	self.setQuestion = function (question) {
		questionText.setText(question.question);
		for (var i = 0; i < self.options.length; i++) {
			self.options[i].setText(question.options[i]);
			self.options[i].isCorrect = i === question.correctIndex;
			self.options[i].setEnabled(true);
		}
		feedbackIcon.visible = false;
		feedbackText.setText("\n\n\n\n\n\n\n\n\n\n");
		nextButton.visible = false;
	};
	self.showFeedback = function (correct, explanation) {
		feedbackIcon.visible = true;
		if (correct) {
			feedbackIcon.texture = LK.getAsset({}, {}).texture;
			feedbackText.setText("Correct! " + explanation);
			feedbackText.setStyle({
				fill: 0x101010,
				size: 45 // Further decrease font size for correct feedback
			});
			// Add congratulation message
			var congratsText = new Text2("Congratulations!", {
				size: 90,
				fill: 0xFFD700
			});
			congratsText.anchor.set(0.5, 0.5);
			congratsText.x = 0;
			congratsText.y = -400;
			self.addChild(congratsText);
			// Animate paper blast effect
			var paperBlast = LK.getAsset('correctFeedback', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: 0,
				y: 0
			});
			self.addChild(paperBlast);
			tween(paperBlast, {
				scaleX: 3,
				scaleY: 3,
				alpha: 0
			}, {
				duration: 1000,
				easing: tween.easeOut,
				onComplete: function onComplete() {
					self.removeChild(paperBlast);
					self.removeChild(congratsText);
				}
			});
			nextButton.up = function () {
				if (nextButton.buttonShape) {
					nextButton.buttonShape.alpha = 1;
				}
				self.removeChild(congratsText); // Ensure congratulation message is removed when next button is clicked
				loadNextQuestion();
			};
		} else {
			feedbackIcon.texture = LK.getAsset('incorrectFeedback', {}).texture;
			var sadEmoji = new Text2("😢", {
				size: 80,
				fill: 0x101010
			});
			sadEmoji.anchor.set(0.5, 0.5);
			sadEmoji.x = -1024; // Start off-screen to the left
			sadEmoji.y = 350;
			self.addChild(sadEmoji);
			// Animate the emoji to walk across the screen
			tween(sadEmoji, {
				x: 1024 // Move to off-screen to the right
			}, {
				duration: 3000,
				// 3 seconds to walk across
				easing: tween.easeInOut,
				onComplete: function onComplete() {
					self.removeChild(sadEmoji); // Remove emoji after animation
				}
			});
			nextButton.up = function () {
				if (nextButton.buttonShape) {
					nextButton.buttonShape.alpha = 1;
				}
				self.removeChild(sadEmoji); // Ensure emoji is removed when next button is clicked
				loadNextQuestion();
			};
			feedbackText.setText("Incorrect. " + explanation);
			feedbackText.setStyle({
				fill: 0x101010,
				fontSize: 45 // Further decrease font size for incorrect feedback
			});
		}
		nextButton.visible = true;
		// Disable all option buttons
		for (var i = 0; i < self.options.length; i++) {
			self.options[i].setEnabled(false);
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Game state variables
// LK.init.shape('correctFeedback', {width:100, height:100, color:0x34c759, shape:'ellipse'})
var currentScreen = "categories"; // categories, gameplay
var questions = [];
var currentQuestionIndex = 0;
var categoryButtons = [];
// Category and question data
var categoryData = {
	space: {
		name: "Space",
		description: "Explore planets, stars, and galaxies",
		questions: [{
			question: "Which planet is known as the Red Planet?",
			options: ["Venus", "Mars", "Jupiter", "Mercury"],
			correctIndex: 1,
			explanation: "Mars is called the Red Planet because of the reddish iron oxide on its surface."
		}, {
			question: "How many planets are in our solar system?",
			options: ["7", "8", "9", "10"],
			correctIndex: 1,
			explanation: "There are 8 planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune."
		}, {
			question: "What is the largest planet in our solar system?",
			options: ["Earth", "Saturn", "Jupiter", "Neptune"],
			correctIndex: 2,
			explanation: "Jupiter is the largest planet in our solar system."
		}, {
			question: "What is the name of the galaxy we live in?",
			options: ["Andromeda", "Milky Way", "Triangulum", "Sombrero"],
			correctIndex: 1,
			explanation: "We live in the Milky Way galaxy, which contains billions of stars."
		}, {
			question: "What causes the phases of the Moon?",
			options: ["Earth's shadow", "Moon's rotation", "Moon's orbit and sunlight", "Solar flares"],
			correctIndex: 2,
			explanation: "The Moon's phases are caused by its position relative to Earth and the Sun as it orbits Earth."
		}, {
			question: "What is the closest star to Earth?",
			options: ["Alpha Centauri", "Proxima Centauri", "Sirius", "Betelgeuse"],
			correctIndex: 1,
			explanation: "Proxima Centauri is the closest known star to the Sun."
		}, {
			question: "What is the smallest planet in our solar system?",
			options: ["Mercury", "Mars", "Venus", "Earth"],
			correctIndex: 0,
			explanation: "Mercury is the smallest planet in our solar system."
		}, {
			question: "What is the hottest planet in our solar system?",
			options: ["Mercury", "Venus", "Mars", "Jupiter"],
			correctIndex: 1,
			explanation: "Venus is the hottest planet due to its thick, toxic atmosphere."
		}, {
			question: "What is the main component of the Sun?",
			options: ["Helium", "Oxygen", "Hydrogen", "Carbon"],
			correctIndex: 2,
			explanation: "The Sun is primarily composed of hydrogen."
		}, {
			question: "What is the name of the first artificial satellite sent into space?",
			options: ["Sputnik 1", "Explorer 1", "Vanguard 1", "Luna 1"],
			correctIndex: 0,
			explanation: "Sputnik 1 was the first artificial satellite launched by the Soviet Union in 1957."
		}, {
			question: "What is the term for a rocky object that orbits the Sun?",
			options: ["Comet", "Asteroid", "Meteor", "Meteorite"],
			correctIndex: 1,
			explanation: "Asteroids are rocky objects that orbit the Sun."
		}, {
			question: "What is the name of the largest volcano in the solar system?",
			options: ["Mount Everest", "Olympus Mons", "Mauna Kea", "Mount Etna"],
			correctIndex: 1,
			explanation: "Olympus Mons on Mars is the largest volcano in the solar system."
		}, {
			question: "What is the term for a star that suddenly increases in brightness?",
			options: ["Supernova", "Nova", "Pulsar", "Quasar"],
			correctIndex: 1,
			explanation: "A nova is a star that suddenly increases in brightness."
		}, {
			question: "What is the name of the first human to travel into space?",
			options: ["Neil Armstrong", "Yuri Gagarin", "Buzz Aldrin", "John Glenn"],
			correctIndex: 1,
			explanation: "Yuri Gagarin was the first human to travel into space in 1961."
		}, {
			question: "What is the term for the path an object takes as it moves around another object in space?",
			options: ["Orbit", "Trajectory", "Course", "Route"],
			correctIndex: 0,
			explanation: "An orbit is the path an object takes as it moves around another object in space."
		}, {
			question: "What is the name of the first American astronaut to orbit Earth?",
			options: ["John Glenn", "Alan Shepard", "Neil Armstrong", "Buzz Aldrin"],
			correctIndex: 0,
			explanation: "John Glenn was the first American astronaut to orbit Earth in 1962."
		}, {
			question: "What is the term for a small body of ice, rock, and cosmic dust that follows an elliptical orbit around the Sun?",
			options: ["Asteroid", "Comet", "Meteor", "Meteorite"],
			correctIndex: 1,
			explanation: "A comet is a small body of ice, rock, and cosmic dust that follows an elliptical orbit around the Sun."
		}, {
			question: "What is the name of the first spacecraft to land on the Moon?",
			options: ["Apollo 11", "Luna 2", "Viking 1", "Mariner 4"],
			correctIndex: 0,
			explanation: "Apollo 11 was the first spacecraft to land on the Moon in 1969."
		}, {
			question: "What is the term for the boundary around a black hole beyond which no light or other radiation can escape?",
			options: ["Event Horizon", "Singularity", "Accretion Disk", "Photon Sphere"],
			correctIndex: 0,
			explanation: "The event horizon is the boundary around a black hole beyond which no light or other radiation can escape."
		}, {
			question: "What is the name of the largest moon of Saturn?",
			options: ["Titan", "Europa", "Ganymede", "Callisto"],
			correctIndex: 0,
			explanation: "Titan is the largest moon of Saturn."
		}, {
			question: "What is the term for the apparent shift in position of an object when viewed from different angles?",
			options: ["Parallax", "Refraction", "Reflection", "Diffraction"],
			correctIndex: 0,
			explanation: "Parallax is the apparent shift in position of an object when viewed from different angles."
		}, {
			question: "What is the name of the first space station launched into orbit?",
			options: ["Skylab", "Mir", "Salyut 1", "International Space Station"],
			correctIndex: 2,
			explanation: "Salyut 1 was the first space station launched into orbit by the Soviet Union in 1971."
		}, {
			question: "What is the term for the point in an orbit closest to the Earth?",
			options: ["Apogee", "Perigee", "Zenith", "Nadir"],
			correctIndex: 1,
			explanation: "Perigee is the point in an orbit closest to the Earth."
		}]
	},
	wildlife: {
		name: "Wildlife",
		description: "Discover amazing animals and their habitats",
		questions: [{
			question: "Which is the fastest land animal?",
			options: ["Lion", "Cheetah", "Gazelle", "Elephant"],
			correctIndex: 1,
			explanation: "Cheetahs can run up to 70 mph (112 km/h) for short bursts."
		}, {
			question: "What do koalas mainly eat?",
			options: ["Bamboo", "Eucalyptus leaves", "Fruits", "Insects"],
			correctIndex: 1,
			explanation: "Koalas primarily eat eucalyptus leaves, which are toxic to many other animals."
		}, {
			question: "Which animal is known as the 'King of the Jungle'?",
			options: ["Tiger", "Lion", "Gorilla", "Panther"],
			correctIndex: 1,
			explanation: "Lions are called 'King of the Jungle' despite living in savannas, not jungles."
		}, {
			question: "How many hearts does an octopus have?",
			options: ["1", "2", "3", "4"],
			correctIndex: 2,
			explanation: "Octopuses have three hearts: two pump blood through the gills and one pumps it through the body."
		}, {
			question: "Which bird can fly backward?",
			options: ["Eagle", "Sparrow", "Hummingbird", "Penguin"],
			correctIndex: 2,
			explanation: "Hummingbirds are the only birds that can fly backward, upside down, and hover in mid-air."
		}, {
			question: "What is the largest land animal?",
			options: ["Elephant", "Giraffe", "Hippopotamus", "Rhinoceros"],
			correctIndex: 0,
			explanation: "The African elephant is the largest land animal."
		}, {
			question: "What is the only mammal capable of true flight?",
			options: ["Bat", "Flying Squirrel", "Sugar Glider", "Flying Lemur"],
			correctIndex: 0,
			explanation: "Bats are the only mammals capable of true flight."
		}, {
			question: "What is the largest species of shark?",
			options: ["Great White Shark", "Hammerhead Shark", "Whale Shark", "Tiger Shark"],
			correctIndex: 2,
			explanation: "The whale shark is the largest species of shark."
		}, {
			question: "What is the primary diet of a panda?",
			options: ["Bamboo", "Insects", "Fish", "Fruits"],
			correctIndex: 0,
			explanation: "Pandas primarily eat bamboo."
		}, {
			question: "What is the fastest bird in the world?",
			options: ["Peregrine Falcon", "Eagle", "Hawk", "Owl"],
			correctIndex: 0,
			explanation: "The peregrine falcon is the fastest bird, reaching speeds over 240 mph (386 km/h) during dives."
		}, {
			question: "What is the largest species of cat?",
			options: ["Lion", "Tiger", "Cheetah", "Leopard"],
			correctIndex: 1,
			explanation: "The tiger is the largest species of cat."
		}, {
			question: "What is the only bird that can fly both forwards and backwards?",
			options: ["Hummingbird", "Sparrow", "Eagle", "Parrot"],
			correctIndex: 0,
			explanation: "Hummingbirds are the only birds that can fly both forwards and backwards."
		}, {
			question: "What is the largest species of bear?",
			options: ["Polar Bear", "Grizzly Bear", "Black Bear", "Panda Bear"],
			correctIndex: 0,
			explanation: "The polar bear is the largest species of bear."
		}, {
			question: "What is the primary diet of a carnivorous animal?",
			options: ["Plants", "Insects", "Meat", "Fruits"],
			correctIndex: 2,
			explanation: "Carnivorous animals primarily eat meat."
		}, {
			question: "What is the largest species of primate?",
			options: ["Gorilla", "Chimpanzee", "Orangutan", "Gibbon"],
			correctIndex: 0,
			explanation: "The gorilla is the largest species of primate."
		}, {
			question: "What is the primary diet of a herbivorous animal?",
			options: ["Plants", "Insects", "Meat", "Fruits"],
			correctIndex: 0,
			explanation: "Herbivorous animals primarily eat plants."
		}, {
			question: "What is the largest species of reptile?",
			options: ["Komodo Dragon", "Crocodile", "Alligator", "Iguana"],
			correctIndex: 1,
			explanation: "The saltwater crocodile is the largest species of reptile."
		}, {
			question: "What is the primary diet of an omnivorous animal?",
			options: ["Plants", "Insects", "Meat and Plants", "Fruits"],
			correctIndex: 2,
			explanation: "Omnivorous animals eat both meat and plants."
		}, {
			question: "What is the largest species of amphibian?",
			options: ["Frog", "Toad", "Salamander", "Newt"],
			correctIndex: 2,
			explanation: "The Chinese giant salamander is the largest species of amphibian."
		}, {
			question: "What is the primary diet of a frugivorous animal?",
			options: ["Plants", "Insects", "Fruits", "Meat"],
			correctIndex: 2,
			explanation: "Frugivorous animals primarily eat fruits."
		}, {
			question: "What is the largest species of fish?",
			options: ["Great White Shark", "Whale Shark", "Hammerhead Shark", "Tiger Shark"],
			correctIndex: 1,
			explanation: "The whale shark is the largest species of fish."
		}]
	},
	anatomy: {
		name: "Human Anatomy",
		description: "Learn about the amazing human body",
		questions: [{
			question: "What is the largest organ in the human body?",
			options: ["Heart", "Liver", "Skin", "Brain"],
			correctIndex: 2,
			explanation: "The skin is the body's largest organ, covering about 20 square feet in adults."
		}, {
			question: "How many bones are in the adult human body?",
			options: ["206", "186", "226", "246"],
			correctIndex: 0,
			explanation: "The adult human body has 206 bones. Babies are born with about 300 bones that fuse as they grow."
		}, {
			question: "What is the strongest muscle in the human body?",
			options: ["Biceps", "Heart", "Jaw muscles", "Gluteus maximus"],
			correctIndex: 2,
			explanation: "The masseter (jaw muscle) is the strongest based on its size and the force it can exert."
		}, {
			question: "What percentage of the human body is water?",
			options: ["50-60%", "60-70%", "70-80%", "80-90%"],
			correctIndex: 1,
			explanation: "The human body is composed of about 60-70% water, varying by age, gender, and body composition."
		}, {
			question: "Which part of the body produces insulin?",
			options: ["Liver", "Kidney", "Pancreas", "Gallbladder"],
			correctIndex: 2,
			explanation: "The pancreas produces insulin, which regulates blood sugar levels."
		}, {
			question: "What is the smallest bone in the human body?",
			options: ["Stapes", "Incus", "Malleus", "Humerus"],
			correctIndex: 0,
			explanation: "The stapes, located in the middle ear, is the smallest bone in the human body."
		}, {
			question: "What is the main function of red blood cells?",
			options: ["Fight infections", "Transport oxygen", "Clot blood", "Regulate temperature"],
			correctIndex: 1,
			explanation: "Red blood cells transport oxygen from the lungs to the rest of the body."
		}, {
			question: "What is the largest artery in the human body?",
			options: ["Aorta", "Carotid", "Femoral", "Pulmonary"],
			correctIndex: 0,
			explanation: "The aorta is the largest artery in the human body."
		}, {
			question: "What is the main function of the liver?",
			options: ["Produce insulin", "Filter blood", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The liver filters blood, detoxifies chemicals, and metabolizes drugs."
		}, {
			question: "What is the main function of the kidneys?",
			options: ["Produce insulin", "Filter blood", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The kidneys filter waste products from the blood and excrete them as urine."
		}, {
			question: "What is the main function of the lungs?",
			options: ["Produce insulin", "Filter blood", "Exchange oxygen and carbon dioxide", "Regulate temperature"],
			correctIndex: 2,
			explanation: "The lungs exchange oxygen and carbon dioxide between the air and the blood."
		}, {
			question: "What is the main function of the heart?",
			options: ["Produce insulin", "Pump blood", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The heart pumps blood throughout the body, supplying oxygen and nutrients to tissues."
		}, {
			question: "What is the main function of the brain?",
			options: ["Produce insulin", "Control body functions", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The brain controls body functions, processes sensory information, and coordinates movement."
		}, {
			question: "What is the main function of the stomach?",
			options: ["Produce insulin", "Digest food", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The stomach digests food by secreting acid and enzymes."
		}, {
			question: "What is the main function of the intestines?",
			options: ["Produce insulin", "Absorb nutrients", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The intestines absorb nutrients from digested food into the bloodstream."
		}, {
			question: "What is the main function of the pancreas?",
			options: ["Produce insulin", "Filter blood", "Store calcium", "Regulate temperature"],
			correctIndex: 0,
			explanation: "The pancreas produces insulin and other hormones that regulate blood sugar levels."
		}, {
			question: "What is the main function of the spleen?",
			options: ["Produce insulin", "Filter blood", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The spleen filters blood, recycles old red blood cells, and helps fight infections."
		}, {
			question: "What is the main function of the gallbladder?",
			options: ["Produce insulin", "Store bile", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The gallbladder stores bile produced by the liver, which helps digest fats."
		}, {
			question: "What is the main function of the thyroid gland?",
			options: ["Produce insulin", "Regulate metabolism", "Store calcium", "Regulate temperature"],
			correctIndex: 1,
			explanation: "The thyroid gland produces hormones that regulate metabolism, growth, and development."
		}, {
			question: "What is the main function of the adrenal glands?",
			options: ["Produce insulin", "Regulate metabolism", "Produce adrenaline", "Regulate temperature"],
			correctIndex: 2,
			explanation: "The adrenal glands produce hormones like adrenaline that help regulate metabolism and stress response."
		}]
	}
};
// UI Elements
var questionPanel = new QuestionPanel();
questionPanel.x = 2048 / 2;
questionPanel.y = 2732 / 2 + 200;
questionPanel.visible = false;
var progressBar = new ProgressBar();
progressBar.x = 124;
progressBar.y = 100;
progressBar.visible = false;
var badges = [];
// Helper functions
function getCategoryName(category) {
	return categoryData[category].name;
}
function selectCategory(category) {
	currentScreen = "gameplay";
	storage.currentCategory = category;
	// Update UI visibility
	showGameplayScreen();
	// Add back and quit buttons
	var backButton = new OptionButton("Back");
	backButton.x = 2048 / 2 - 200;
	backButton.y = 2732 - 100; // Move to bottom of the page
	backButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		if (backButton.buttonShape) {
			backButton.buttonShape.alpha = 0.7;
		}
	};
	backButton.up = function (x, y, obj) {
		if (backButton.buttonShape) {
			backButton.buttonShape.alpha = 1;
		}
		showCategoriesScreen();
	};
	game.addChild(backButton);
	var quitButton = new OptionButton("Quit");
	quitButton.x = 2048 / 2 + 200;
	quitButton.y = 2732 - 100; // Move to bottom of the page
	quitButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		if (quitButton.buttonShape) {
			quitButton.buttonShape.alpha = 0.7;
		}
	};
	quitButton.up = function (x, y, obj) {
		if (quitButton.buttonShape) {
			quitButton.buttonShape.alpha = 1;
		}
		LK.showGameOver(); // Use LK's built-in game over screen to quit
	};
	game.addChild(quitButton);
	// Load questions
	questions = categoryData[category].questions;
	currentQuestionIndex = 0;
	// Show first question
	loadQuestion(currentQuestionIndex);
	// Update progress bar
	progressBar.updateProgress(currentQuestionIndex, questions.length);
	LK.playMusic('gameMusic');
}
function showCategoriesScreen() {
	currentScreen = "categories";
	// Hide gameplay elements
	questionPanel.visible = false;
	progressBar.visible = false;
	// Show category buttons
	for (var i = 0; i < categoryButtons.length; i++) {
		categoryButtons[i].visible = true;
		categoryButtons[i].updateProgress(storage.progress[categoryButtons[i].category]);
	}
}
function showGameplayScreen() {
	// Hide category buttons
	for (var i = 0; i < categoryButtons.length; i++) {
		categoryButtons[i].visible = false;
	}
	// Show gameplay elements
	questionPanel.visible = true;
	progressBar.visible = true;
}
function loadQuestion(index) {
	if (index < questions.length) {
		questionPanel.setQuestion(questions[index]);
	} else {
		completeCategoryProgress();
	}
}
function loadNextQuestion() {
	currentQuestionIndex++;
	progressBar.updateProgress(currentQuestionIndex, questions.length);
	loadQuestion(currentQuestionIndex);
}
function checkAnswer(selectedOption) {
	var isCorrect = selectedOption.isCorrect;
	if (isCorrect) {
		LK.getSound('correct').play();
		LK.setScore(LK.getScore() + 10);
	} else {
		LK.getSound('incorrect').play();
	}
	questionPanel.showFeedback(isCorrect, questions[currentQuestionIndex].explanation);
	// Update progress
	if (isCorrect) {
		var categoryProgress = storage.progress[storage.currentCategory];
		var newProgress = (currentQuestionIndex + 1) / questions.length;
		if (newProgress > categoryProgress) {
			storage.progress[storage.currentCategory] = newProgress;
		}
	}
}
function completeCategoryProgress() {
	// Play level complete sound if all questions are completed
	if (storage.progress[storage.currentCategory] >= 1) {
		LK.getSound('levelComplete').play();
	}
	showCategoriesScreen();
}
// Initialize game
function initializeGame() {
	// Create category selection screen
	var spaceButton = new CategoryButton('space', "SPACE", "");
	spaceButton.x = 2048 / 2 - 550;
	spaceButton.y = 2732 / 2;
	game.addChild(spaceButton);
	categoryButtons.push(spaceButton);
	var wildlifeButton = new CategoryButton('wildlife', "WILDLIFE", "");
	wildlifeButton.x = 2048 / 2;
	wildlifeButton.y = 2732 / 2;
	game.addChild(wildlifeButton);
	categoryButtons.push(wildlifeButton);
	var anatomyButton = new CategoryButton('anatomy', "ANATOMY", "");
	anatomyButton.x = 2048 / 2 + 550;
	anatomyButton.y = 2732 / 2;
	game.addChild(anatomyButton);
	categoryButtons.push(anatomyButton);
	// Create title
	var titleText = new Text2("SCIENCE EXPLORER", {
		size: 180,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 2048 / 2;
	titleText.y = 400;
	game.addChild(titleText);
	var subtitleText = new Text2("Choose a topic to explore", {
		size: 50,
		fill: 0xFFFFFF
	});
	subtitleText.anchor.set(0.5, 0.5);
	subtitleText.x = 2048 / 2;
	subtitleText.y = 600;
	game.addChild(subtitleText);
	// Create score display
	var scoreText = new Text2("Score: 0", {
		size: 50,
		fill: 0x101010
	});
	scoreText.anchor.set(1, 0);
	LK.gui.topRight.addChild(scoreText);
	// Add quit button
	var quitButton = new OptionButton("Quit");
	quitButton.x = 2048 / 2;
	quitButton.y = 2732 / 2 + 400;
	quitButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		if (quitButton.buttonShape) {
			quitButton.buttonShape.alpha = 0.7;
		}
	};
	quitButton.up = function (x, y, obj) {
		if (quitButton.buttonShape) {
			quitButton.buttonShape.alpha = 1;
		}
		LK.showGameOver(); // Use LK's built-in game over screen to quit
	};
	game.addChild(quitButton);
	// Add gameplay elements
	game.addChild(questionPanel);
	game.addChild(progressBar);
	// Update category buttons with saved progress
	for (var i = 0; i < categoryButtons.length; i++) {
		categoryButtons[i].updateProgress(storage.progress[categoryButtons[i].category]);
	}
	// Update UI based on initial screen
	if (currentScreen === "categories") {
		showCategoriesScreen();
	} else {
		showGameplayScreen();
	}
	// Update score display
	LK.setScore(0);
}
initializeGame();
// Game update loop
game.update = function () {
	// Update score display
	var scoreDisplay = LK.gui.topRight.children[0];
	if (scoreDisplay) {
		scoreDisplay.setText("Score: " + LK.getScore());
	}
};
LK.playMusic('gameMusic');