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

/**** 
* Classes
****/ 
var FeedbackScreen = Container.expand(function () {
	var self = Container.call(this);
	var background = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 9,
		scaleY: 12
	});
	background.x = 1024;
	background.y = 1366;
	background.alpha = 0.95;
	self.addChild(background);
	var titleText = new Text2('FEEDBACK', {
		size: 120,
		fill: 0xFFAA00
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 400;
	self.addChild(titleText);
	// Feedback form instructions
	var instructions = ['We would love to hear your thoughts!', '', 'What did you think of the game?', '• Was it fun and engaging?', '• Were the controls easy to use?', '• How was the difficulty level?', '• Any suggestions for improvement?', '', 'Thank you for playing MAVUS BABA!', 'Your feedback helps us make better games.', '', 'Contact us at:', 'INSTAGRAM: abdurrahim_scu'];
	var yOffset = 650;
	for (var i = 0; i < instructions.length; i++) {
		var instructionText = new Text2(instructions[i], {
			size: instructions[i] === '' ? 30 : instructions[i].startsWith('Contact') || instructions[i].includes('@') ? 50 : instructions[i].startsWith('•') ? 45 : instructions[i] === 'We would love to hear your thoughts!' ? 70 : instructions[i] === 'Thank you for playing MAVUS BABA!' ? 65 : 55,
			fill: instructions[i].includes('@') ? 0x44FF44 : instructions[i].startsWith('•') ? 0xFFFF44 : instructions[i] === 'Thank you for playing MAVUS BABA!' ? 0xFFAA00 : 0xFFFFFF
		});
		instructionText.anchor.set(0.5, 0.5);
		instructionText.x = 1024;
		instructionText.y = yOffset + i * 80;
		self.addChild(instructionText);
	}
	var backButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 0.6
	});
	backButton.x = 1024;
	backButton.y = 2300;
	self.addChild(backButton);
	var backText = new Text2('BACK', {
		size: 80,
		fill: 0xFFFFFF
	});
	backText.anchor.set(0.5, 0.5);
	backText.x = 1024;
	backText.y = 2300;
	self.addChild(backText);
	backButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		hideFeedbackScreen();
	};
	return self;
});
var Gem = Container.expand(function () {
	var self = Container.call(this);
	self.gemType = 0;
	self.gridX = 0;
	self.gridY = 0;
	self.graphics = null;
	self.isSelected = false;
	self.isMatched = false;
	self.isFalling = false;
	self.isBomb = false;
	self.init = function (type, gx, gy) {
		self.gemType = type;
		self.gridX = gx;
		self.gridY = gy;
		var gemTypes = ['gemRed', 'gemBlue', 'gemGreen', 'gemYellow', 'gemPurple', 'gemOrange', 'gemBomb'];
		if (type === 6) {
			self.isBomb = true;
		}
		self.graphics = self.attachAsset(gemTypes[type], {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.updatePosition();
	};
	self.updatePosition = function () {
		var startX = (2048 - GRID_SIZE * CELL_SIZE) / 2;
		var startY = 400;
		self.x = startX + self.gridX * CELL_SIZE + CELL_SIZE / 2;
		self.y = startY + self.gridY * CELL_SIZE + CELL_SIZE / 2;
	};
	self.setSelected = function (selected) {
		self.isSelected = selected;
		if (selected) {
			self.graphics.alpha = 0.7;
			tween(self.graphics, {
				scaleX: 1.2,
				scaleY: 1.2
			}, {
				duration: 200
			});
		} else {
			self.graphics.alpha = 1.0;
			tween(self.graphics, {
				scaleX: 1.0,
				scaleY: 1.0
			}, {
				duration: 200
			});
		}
	};
	self.fallTo = function (newY, callback) {
		self.isFalling = true;
		self.gridY = newY;
		var newPosY = 400 + newY * CELL_SIZE + CELL_SIZE / 2;
		tween(self, {
			y: newPosY
		}, {
			duration: 300,
			easing: tween.bounceOut,
			onFinish: function onFinish() {
				self.isFalling = false;
				if (callback) callback();
			}
		});
	};
	self.destroy = function () {
		self.isMatched = true;
		// Create explosion effect with scaling and rotation
		tween(self.graphics, {
			scaleX: 1.8,
			scaleY: 1.8,
			rotation: Math.PI * 2,
			alpha: 0
		}, {
			duration: 400,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				if (self.parent) {
					self.parent.removeChild(self);
				}
			}
		});
	};
	self.explodeBomb = function () {
		if (!self.isBomb) return;
		// Create dramatic bomb explosion effect
		tween(self.graphics, {
			scaleX: 3,
			scaleY: 3,
			rotation: Math.PI * 4,
			alpha: 0
		}, {
			duration: 500,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				if (self.parent) {
					self.parent.removeChild(self);
				}
			}
		});
		// Add pulsing effect before explosion
		tween(self.graphics, {
			scaleX: 1.3,
			scaleY: 1.3
		}, {
			duration: 100,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(self.graphics, {
					scaleX: 1.0,
					scaleY: 1.0
				}, {
					duration: 100,
					easing: tween.easeInOut
				});
			}
		});
		// Mark gems in 3x3 area for destruction
		var gemsToDestroy = [];
		for (var dx = -1; dx <= 1; dx++) {
			for (var dy = -1; dy <= 1; dy++) {
				var targetX = self.gridX + dx;
				var targetY = self.gridY + dy;
				if (targetX >= 0 && targetX < GRID_SIZE && targetY >= 0 && targetY < GRID_SIZE) {
					if (grid[targetX][targetY] && !grid[targetX][targetY].isMatched) {
						gemsToDestroy.push({
							x: targetX,
							y: targetY
						});
					}
				}
			}
		}
		// Destroy gems with delay and explosion effects
		for (var i = 0; i < gemsToDestroy.length; i++) {
			(function (destroyData, index) {
				LK.setTimeout(function () {
					if (grid[destroyData.x][destroyData.y]) {
						var gemToExplode = grid[destroyData.x][destroyData.y];
						// Create explosion effect for each gem
						tween(gemToExplode.graphics, {
							scaleX: 2.0,
							scaleY: 2.0,
							rotation: Math.PI * (1 + Math.random()),
							alpha: 0
						}, {
							duration: 300,
							easing: tween.easeOut,
							onFinish: function onFinish() {
								if (gemToExplode.parent) {
									gemToExplode.parent.removeChild(gemToExplode);
								}
							}
						});
						grid[destroyData.x][destroyData.y] = null;
					}
				}, i * 80);
			})(gemsToDestroy[i], i);
		}
		// Add explosion score - in extreme mode, only count gems of the selected type
		var scoringGems = gemsToDestroy.length;
		if (gameMode === 'extreme') {
			scoringGems = 0;
			for (var j = 0; j < gemsToDestroy.length; j++) {
				var destroyData = gemsToDestroy[j];
				if (grid[destroyData.x] && grid[destroyData.x][destroyData.y] && grid[destroyData.x][destroyData.y].gemType === extremeGemType) {
					scoringGems++;
				}
			}
		}
		var explosionScore = scoringGems * 50 * multiplier;
		score += explosionScore;
		updateScore();
		// Play explosion sound
		LK.getSound('explosion').play();
		// Wait for all destruction then cascade and fill empty spaces
		LK.setTimeout(function () {
			cascadeGems();
			// Ensure empty spaces are filled after bomb explosion
			LK.setTimeout(function () {
				fillEmptySpaces();
			}, 100);
		}, 500);
	};
	self.down = function (x, y, obj) {
		if (!self.isFalling && !isProcessing) {
			if (self.isBomb) {
				isProcessing = true;
				self.explodeBomb();
			} else {
				selectGem(self);
			}
		}
	};
	return self;
});
var HowToPlayScreen = Container.expand(function () {
	var self = Container.call(this);
	var background = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 9,
		scaleY: 12
	});
	background.x = 1024;
	background.y = 1366;
	background.alpha = 0.95;
	self.addChild(background);
	var titleText = new Text2('HOW TO PLAY', {
		size: 120,
		fill: 0x44FF44
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 400;
	self.addChild(titleText);
	// Game instructions text
	var instructions = ['Match 3 or more gems of the same color', 'to clear them and earn points!', '', '• Tap gems to select them', '• Select adjacent gems to swap', '• Create cascades for bonus points', '• Match 4+ gems to create bombs', '• Bombs destroy 3x3 areas', '• Score multiplier increases with points', '• You have 60 seconds to score big!', '', 'EXTREME MODE:', 'Only one gem type scores points!'];
	var yOffset = 650;
	for (var i = 0; i < instructions.length; i++) {
		var instructionText = new Text2(instructions[i], {
			size: instructions[i] === '' ? 30 : instructions[i].startsWith('EXTREME') ? 80 : 55,
			fill: instructions[i].startsWith('EXTREME') ? 0xFF4444 : instructions[i].startsWith('•') ? 0xFFFF44 : 0xFFFFFF
		});
		instructionText.anchor.set(0.5, 0.5);
		instructionText.x = 1024;
		instructionText.y = yOffset + i * 90;
		self.addChild(instructionText);
	}
	var backButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 0.6
	});
	backButton.x = 1024;
	backButton.y = 2300;
	self.addChild(backButton);
	var backText = new Text2('BACK', {
		size: 80,
		fill: 0xFFFFFF
	});
	backText.anchor.set(0.5, 0.5);
	backText.x = 1024;
	backText.y = 2300;
	self.addChild(backText);
	backButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		hideHowToPlayScreen();
	};
	return self;
});
var OptionsMenu = Container.expand(function () {
	var self = Container.call(this);
	var background = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 8,
		scaleY: 6
	});
	background.x = 1024;
	background.y = 1366;
	background.alpha = 0.9;
	self.addChild(background);
	var titleText = new Text2('Options', {
		size: 150,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 800;
	self.addChild(titleText);
	// Music Volume Toggle Button
	var musicVolumeButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2.5,
		scaleY: 0.6
	});
	musicVolumeButton.x = 1024;
	musicVolumeButton.y = 1000;
	self.addChild(musicVolumeButton);
	// Get current music volume state
	var isMusicOn = storage.musicVolume === undefined ? true : storage.musicVolume > 0;
	var musicVolumeText = new Text2(isMusicOn ? 'Music: ON' : 'Music: OFF', {
		size: 80,
		fill: 0xFFFFFF
	});
	musicVolumeText.anchor.set(0.5, 0.5);
	musicVolumeText.x = 1024;
	musicVolumeText.y = 1000;
	self.addChild(musicVolumeText);
	musicVolumeButton.down = function (x, y, obj) {
		// Toggle music volume
		var currentVolume = storage.musicVolume === undefined ? 1.0 : storage.musicVolume;
		if (currentVolume > 0) {
			// Turn music off
			storage.musicVolume = 0;
			musicVolumeText.setText('Music: OFF');
			LK.stopMusic();
		} else {
			// Turn music on
			storage.musicVolume = 1.0;
			musicVolumeText.setText('Music: ON');
			// Play appropriate music based on game state
			if (gameState === 'playing') {
				LK.playMusic('background', {
					fade: {
						start: 0,
						end: 0.9,
						duration: 500
					}
				});
			} else if (gameState === 'menu' || gameState === 'options') {
				LK.playMusic('background', {
					fade: {
						start: 0,
						end: 0.8,
						duration: 500
					}
				});
			}
		}
	};
	var backButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 0.6
	});
	backButton.x = 1024;
	backButton.y = 1200;
	self.addChild(backButton);
	var backText = new Text2('Back', {
		size: 80,
		fill: 0xFFFFFF
	});
	backText.anchor.set(0.5, 0.5);
	backText.x = 1024;
	backText.y = 1200;
	self.addChild(backText);
	backButton.down = function (x, y, obj) {
		hideOptionsMenu();
	};
	return self;
});
var StartScreen = Container.expand(function () {
	var self = Container.call(this);
	// Create animated star background
	var stars = [];
	for (var i = 0; i < 50; i++) {
		var star = self.attachAsset('starBg', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		star.x = Math.random() * 2048;
		star.y = Math.random() * 2732;
		star.alpha = Math.random() * 0.8 + 0.2;
		stars.push(star);
		// Animate each star with twinkling effect
		tween(star, {
			alpha: Math.random() * 0.3 + 0.1
		}, {
			duration: Math.random() * 2000 + 1000,
			easing: tween.easeInOut,
			loop: true,
			yoyo: true
		});
		// Add gentle floating movement
		tween(star, {
			y: star.y + (Math.random() * 100 - 50)
		}, {
			duration: Math.random() * 4000 + 2000,
			easing: tween.easeInOut,
			loop: true,
			yoyo: true
		});
	}
	// Create 3D effect with shadow layers
	var titleShadow3 = new Text2('MAVUS BABA', {
		size: 200,
		fill: 0x000000
	});
	titleShadow3.anchor.set(0.5, 0.5);
	titleShadow3.x = 1032;
	titleShadow3.y = 808;
	self.addChild(titleShadow3);
	var titleShadow2 = new Text2('MAVUS BABA', {
		size: 200,
		fill: 0x333333
	});
	titleShadow2.anchor.set(0.5, 0.5);
	titleShadow2.x = 1028;
	titleShadow2.y = 804;
	self.addChild(titleShadow2);
	var titleShadow1 = new Text2('MAVUS BABA', {
		size: 200,
		fill: 0x666666
	});
	titleShadow1.anchor.set(0.5, 0.5);
	titleShadow1.x = 1026;
	titleShadow1.y = 802;
	self.addChild(titleShadow1);
	var titleText = new Text2('MAVUS BABA', {
		size: 200,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 800;
	self.addChild(titleText);
	// Add 3D glow animation
	tween(titleText, {
		alpha: 0.8
	}, {
		duration: 1500,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			tween(titleText, {
				alpha: 1.0
			}, {
				duration: 1500,
				easing: tween.easeInOut
			});
		}
	});
	var startButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2,
		scaleY: 0.8
	});
	startButton.x = 1024;
	startButton.y = 1200;
	self.addChild(startButton);
	// Create 3D effect for Start text
	var startShadow2 = new Text2('START', {
		size: 100,
		fill: 0x000000
	});
	startShadow2.anchor.set(0.5, 0.5);
	startShadow2.x = 1028;
	startShadow2.y = 1204;
	self.addChild(startShadow2);
	var startShadow1 = new Text2('START', {
		size: 100,
		fill: 0x444444
	});
	startShadow1.anchor.set(0.5, 0.5);
	startShadow1.x = 1026;
	startShadow1.y = 1202;
	self.addChild(startShadow1);
	var startText = new Text2('START', {
		size: 100,
		fill: 0xFFFFFF
	});
	startText.anchor.set(0.5, 0.5);
	startText.x = 1024;
	startText.y = 1200;
	self.addChild(startText);
	var optionsButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2,
		scaleY: 0.8
	});
	optionsButton.x = 1024;
	optionsButton.y = 1500;
	self.addChild(optionsButton);
	// Create 3D effect for Options text
	var optionsShadow2 = new Text2('OPTIONS', {
		size: 100,
		fill: 0x000000
	});
	optionsShadow2.anchor.set(0.5, 0.5);
	optionsShadow2.x = 1028;
	optionsShadow2.y = 1504;
	self.addChild(optionsShadow2);
	var optionsShadow1 = new Text2('OPTIONS', {
		size: 100,
		fill: 0x444444
	});
	optionsShadow1.anchor.set(0.5, 0.5);
	optionsShadow1.x = 1026;
	optionsShadow1.y = 1502;
	self.addChild(optionsShadow1);
	var optionsText = new Text2('OPTIONS', {
		size: 100,
		fill: 0xFFFFFF
	});
	optionsText.anchor.set(0.5, 0.5);
	optionsText.x = 1024;
	optionsText.y = 1500;
	self.addChild(optionsText);
	// Add "MADE BY MAVUS DONDURMA" text to bottom left corner
	var madeByText = new Text2('MADE BY MAVUS DONDURMA', {
		size: 60,
		fill: 0xCCCCCC
	});
	madeByText.anchor.set(0, 1);
	madeByText.x = 150;
	madeByText.y = 2632;
	self.addChild(madeByText);
	startButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		startGame();
	};
	optionsButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		showOptionsMenu();
	};
	var extremeButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2,
		scaleY: 0.8
	});
	extremeButton.x = 1024;
	extremeButton.y = 1800;
	self.addChild(extremeButton);
	// Create 3D effect for Extreme Mode text
	var extremeShadow2 = new Text2('EXTREME MODE', {
		size: 80,
		fill: 0x000000
	});
	extremeShadow2.anchor.set(0.5, 0.5);
	extremeShadow2.x = 1028;
	extremeShadow2.y = 1804;
	self.addChild(extremeShadow2);
	var extremeShadow1 = new Text2('EXTREME MODE', {
		size: 80,
		fill: 0x444444
	});
	extremeShadow1.anchor.set(0.5, 0.5);
	extremeShadow1.x = 1026;
	extremeShadow1.y = 1802;
	self.addChild(extremeShadow1);
	var extremeText = new Text2('EXTREME MODE', {
		size: 80,
		fill: 0xFF4444
	});
	extremeText.anchor.set(0.5, 0.5);
	extremeText.x = 1024;
	extremeText.y = 1800;
	self.addChild(extremeText);
	extremeButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		gameMode = 'extreme';
		startGame();
	};
	// How to Play button at bottom right
	var howToPlayButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.8,
		scaleY: 0.7
	});
	howToPlayButton.x = 1700;
	howToPlayButton.y = 2400;
	self.addChild(howToPlayButton);
	// Create 3D effect for How to Play text
	var howToPlayShadow2 = new Text2('HOW TO PLAY', {
		size: 60,
		fill: 0x000000
	});
	howToPlayShadow2.anchor.set(0.5, 0.5);
	howToPlayShadow2.x = 1704;
	howToPlayShadow2.y = 2404;
	self.addChild(howToPlayShadow2);
	var howToPlayShadow1 = new Text2('HOW TO PLAY', {
		size: 60,
		fill: 0x444444
	});
	howToPlayShadow1.anchor.set(0.5, 0.5);
	howToPlayShadow1.x = 1702;
	howToPlayShadow1.y = 2402;
	self.addChild(howToPlayShadow1);
	var howToPlayText = new Text2('HOW TO PLAY', {
		size: 60,
		fill: 0x44FF44
	});
	howToPlayText.anchor.set(0.5, 0.5);
	howToPlayText.x = 1700;
	howToPlayText.y = 2400;
	self.addChild(howToPlayText);
	howToPlayButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		showHowToPlayScreen();
	};
	// Feedback button at bottom right under How to Play
	var feedbackButton = LK.getAsset('gridCell', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.8,
		scaleY: 0.7
	});
	feedbackButton.x = 1700;
	feedbackButton.y = 2550;
	self.addChild(feedbackButton);
	// Create 3D effect for Feedback text
	var feedbackShadow2 = new Text2('FEEDBACK', {
		size: 60,
		fill: 0x000000
	});
	feedbackShadow2.anchor.set(0.5, 0.5);
	feedbackShadow2.x = 1704;
	feedbackShadow2.y = 2554;
	self.addChild(feedbackShadow2);
	var feedbackShadow1 = new Text2('FEEDBACK', {
		size: 60,
		fill: 0x444444
	});
	feedbackShadow1.anchor.set(0.5, 0.5);
	feedbackShadow1.x = 1702;
	feedbackShadow1.y = 2552;
	self.addChild(feedbackShadow1);
	var feedbackText = new Text2('FEEDBACK', {
		size: 60,
		fill: 0xFFAA00
	});
	feedbackText.anchor.set(0.5, 0.5);
	feedbackText.x = 1700;
	feedbackText.y = 2550;
	self.addChild(feedbackText);
	feedbackButton.down = function (x, y, obj) {
		LK.getSound('buttonClick').play();
		showFeedbackScreen();
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
var GRID_SIZE = 8;
var CELL_SIZE = 200;
var GEM_TYPES = 6;
var BOMB_TYPE = 6;
var grid = [];
var selectedGem = null;
var score = 0;
var multiplier = 1;
var isProcessing = false;
var cascadeCount = 0;
var gameTimeLeft = 60;
var gameTimer = null;
var timerTxt = null;
var gameMode = 'normal'; // 'normal' or 'extreme'
var extremeGemType = 0; // Only this gem type scores points in extreme mode
var extremeGemTxt = null;
// Game state management
var gameState = 'menu'; // 'menu', 'playing', 'options'
var startScreen = null;
var optionsMenu = null;
var gameElements = [];
// Spaceship for background animation
var spaceship = null;
// UFO for background animation
var ufo = null;
// Score display will be created when game starts
var scoreTxt = null;
var multiplierTxt = null;
// Initialize grid
function initializeGrid() {
	var startX = (2048 - GRID_SIZE * CELL_SIZE) / 2;
	var startY = 400;
	// Create background cells
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			var cell = LK.getAsset('gridCell', {
				anchorX: 0,
				anchorY: 0,
				alpha: 0.95
			});
			cell.x = startX + x * CELL_SIZE;
			cell.y = startY + y * CELL_SIZE;
			game.addChild(cell);
		}
	}
	// Initialize grid array
	for (var x = 0; x < GRID_SIZE; x++) {
		grid[x] = [];
		for (var y = 0; y < GRID_SIZE; y++) {
			grid[x][y] = null;
		}
	}
	// Fill grid with gems
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			createGem(x, y);
		}
	}
	// Remove initial matches
	removeInitialMatches();
}
function createGem(x, y) {
	var gem = new Gem();
	var gemType = Math.floor(Math.random() * GEM_TYPES);
	gem.init(gemType, x, y);
	grid[x][y] = gem;
	game.addChild(gem);
	return gem;
}
function removeInitialMatches() {
	var hasMatches = true;
	var attempts = 0;
	while (hasMatches && attempts < 50) {
		hasMatches = false;
		attempts++;
		for (var x = 0; x < GRID_SIZE; x++) {
			for (var y = 0; y < GRID_SIZE; y++) {
				if (grid[x][y] && hasMatchAt(x, y)) {
					// Regenerate this gem
					var oldGem = grid[x][y];
					if (oldGem.parent) {
						oldGem.parent.removeChild(oldGem);
					}
					createGem(x, y);
					hasMatches = true;
				}
			}
		}
	}
}
function selectGem(gem) {
	if (selectedGem === gem) {
		// Deselect
		selectedGem.setSelected(false);
		selectedGem = null;
		return;
	}
	if (selectedGem === null) {
		// First selection
		selectedGem = gem;
		gem.setSelected(true);
	} else {
		// Second selection - check if adjacent
		if (areAdjacent(selectedGem, gem)) {
			swapGems(selectedGem, gem);
		}
		selectedGem.setSelected(false);
		selectedGem = null;
	}
}
function areAdjacent(gem1, gem2) {
	var dx = Math.abs(gem1.gridX - gem2.gridX);
	var dy = Math.abs(gem1.gridY - gem2.gridY);
	return dx === 1 && dy === 0 || dx === 0 && dy === 1;
}
function swapGems(gem1, gem2) {
	if (isProcessing) return;
	isProcessing = true;
	// Store positions
	var tempX = gem1.gridX;
	var tempY = gem1.gridY;
	// Update grid positions
	gem1.gridX = gem2.gridX;
	gem1.gridY = gem2.gridY;
	gem2.gridX = tempX;
	gem2.gridY = tempY;
	// Update grid array
	grid[gem1.gridX][gem1.gridY] = gem1;
	grid[gem2.gridX][gem2.gridY] = gem2;
	// Animate swap
	var gem1NewX = gem1.x;
	var gem1NewY = gem1.y;
	gem1.updatePosition();
	var gem2NewX = gem2.x;
	var gem2NewY = gem2.y;
	gem2.updatePosition();
	gem1.x = gem2NewX;
	gem1.y = gem2NewY;
	gem2.x = gem1NewX;
	gem2.y = gem1NewY;
	tween(gem1, {
		x: gem1NewX,
		y: gem1NewY
	}, {
		duration: 300
	});
	tween(gem2, {
		x: gem2NewX,
		y: gem2NewY
	}, {
		duration: 300,
		onFinish: function onFinish() {
			checkForMatches();
		}
	});
}
function hasMatchAt(x, y) {
	if (!grid[x] || !grid[x][y]) return false;
	var gemType = grid[x][y].gemType;
	// Check horizontal
	var hCount = 1;
	// Check left
	for (var i = x - 1; i >= 0 && grid[i][y] && grid[i][y].gemType === gemType; i--) {
		hCount++;
	}
	// Check right
	for (var i = x + 1; i < GRID_SIZE && grid[i][y] && grid[i][y].gemType === gemType; i++) {
		hCount++;
	}
	if (hCount >= 3) return true;
	// Check vertical
	var vCount = 1;
	// Check up
	for (var i = y - 1; i >= 0 && grid[x][i] && grid[x][i].gemType === gemType; i--) {
		vCount++;
	}
	// Check down
	for (var i = y + 1; i < GRID_SIZE && grid[x][i] && grid[x][i].gemType === gemType; i++) {
		vCount++;
	}
	return vCount >= 3;
}
function checkForMatches() {
	var matches = [];
	// Find all matches
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			if (grid[x][y] && hasMatchAt(x, y)) {
				matches.push({
					x: x,
					y: y
				});
			}
		}
	}
	if (matches.length > 0) {
		cascadeCount++;
		LK.getSound('match').play();
		// Calculate score - in extreme mode, only count matches of the selected gem type
		var scoringMatches = matches;
		if (gameMode === 'extreme') {
			scoringMatches = [];
			for (var i = 0; i < matches.length; i++) {
				var match = matches[i];
				if (grid[match.x] && grid[match.x][match.y] && grid[match.x][match.y].gemType === extremeGemType) {
					scoringMatches.push(match);
				}
			}
		}
		var points = scoringMatches.length * 10 * multiplier * cascadeCount;
		score += points;
		updateScore();
		// Create bomb if match is 4 or more gems
		var shouldCreateBomb = matches.length >= 4;
		var bombPosition = null;
		if (shouldCreateBomb && matches.length > 0) {
			bombPosition = matches[Math.floor(Math.random() * matches.length)];
		}
		// Mark matched gems for destruction
		for (var i = 0; i < matches.length; i++) {
			var match = matches[i];
			if (grid[match.x][match.y]) {
				grid[match.x][match.y].destroy();
				grid[match.x][match.y] = null;
			}
		}
		// Create bomb after destruction
		if (shouldCreateBomb && bombPosition) {
			LK.setTimeout(function () {
				if (grid[bombPosition.x][bombPosition.y] === null) {
					var bomb = new Gem();
					bomb.init(BOMB_TYPE, bombPosition.x, bombPosition.y);
					grid[bombPosition.x][bombPosition.y] = bomb;
					game.addChild(bomb);
					// Animate bomb creation
					bomb.graphics.scaleX = 0;
					bomb.graphics.scaleY = 0;
					tween(bomb.graphics, {
						scaleX: 1,
						scaleY: 1
					}, {
						duration: 300,
						easing: tween.bounceOut
					});
				}
			}, 200);
		}
		// Wait for destruction animation then cascade
		LK.setTimeout(function () {
			cascadeGems();
		}, 400);
	} else {
		cascadeCount = 0;
		isProcessing = false;
	}
}
function cascadeGems() {
	var needsCascade = false;
	var fallPromises = 0;
	// Process each column from left to right
	for (var x = 0; x < GRID_SIZE; x++) {
		// Compact the column - move all existing gems down to fill gaps
		var compactedGems = [];
		for (var y = 0; y < GRID_SIZE; y++) {
			if (grid[x][y] !== null) {
				compactedGems.push(grid[x][y]);
				grid[x][y] = null;
			}
		}
		// Place compacted gems at the bottom of the column
		var startY = GRID_SIZE - compactedGems.length;
		for (var i = 0; i < compactedGems.length; i++) {
			var gem = compactedGems[i];
			var newY = startY + i;
			var oldY = gem.gridY;
			if (oldY !== newY) {
				needsCascade = true;
				grid[x][newY] = gem;
				fallPromises++;
				gem.fallTo(newY, function () {
					fallPromises--;
					if (fallPromises === 0) {
						// Always fill empty spaces after cascading
						fillEmptySpaces();
					}
				});
			} else {
				// Gem doesn't need to move
				grid[x][newY] = gem;
			}
		}
	}
	// Always ensure empty spaces are filled, regardless of cascade
	fillEmptySpaces();
	if (needsCascade) {
		LK.getSound('cascade').play();
	}
}
function fillEmptySpaces() {
	var newGemsCreated = 0;
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			if (grid[x][y] === null) {
				createGem(x, y);
				newGemsCreated++;
				// Start gem above the screen and animate it falling
				var startY = 400 - newGemsCreated * CELL_SIZE;
				grid[x][y].y = startY;
				tween(grid[x][y], {
					y: 400 + y * CELL_SIZE + CELL_SIZE / 2
				}, {
					duration: 500 + newGemsCreated * 50,
					easing: tween.bounceOut
				});
			}
		}
	}
	// Check for new matches after a delay
	LK.setTimeout(function () {
		checkForMatches();
	}, 600);
}
function updateScore() {
	if (scoreTxt) {
		scoreTxt.setText('Score: ' + score);
	}
	// Update multiplier based on score
	var newMultiplier = 1;
	if (score >= 2500) newMultiplier = 5;else if (score >= 1000) newMultiplier = 4;else if (score >= 500) newMultiplier = 3;else if (score >= 100) newMultiplier = 2;
	if (newMultiplier !== multiplier) {
		multiplier = newMultiplier;
		if (multiplierTxt) {
			multiplierTxt.setText('Multiplier: x' + multiplier);
		}
		LK.effects.flashScreen(0x00ff00, 500);
	}
	// Win condition
	if (score >= 5000) {
		LK.showYouWin();
	}
}
// Initialize start screen instead of game
showStartScreen();
game.update = function () {
	// Game loop - handle any continuous updates here
};
function showStartScreen() {
	gameState = 'menu';
	gameMode = 'normal'; // Reset to normal mode when returning to menu
	if (startScreen) {
		game.removeChild(startScreen);
	}
	// Clear game timer if it exists
	if (gameTimer) {
		LK.clearInterval(gameTimer);
		gameTimer = null;
	}
	// Clear all game elements when returning to menu
	for (var i = 0; i < gameElements.length; i++) {
		if (gameElements[i].parent) {
			gameElements[i].parent.removeChild(gameElements[i]);
		}
	}
	gameElements = [];
	// Clear grid elements
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			if (grid[x] && grid[x][y] && grid[x][y].parent) {
				grid[x][y].parent.removeChild(grid[x][y]);
			}
		}
	}
	// Clear all children from game to ensure clean slate
	while (game.children.length > 0) {
		game.removeChild(game.children[0]);
	}
	startScreen = new StartScreen();
	game.addChild(startScreen);
	// Start spaceship animation
	createSpaceship();
	// Start UFO animation
	createUfo();
	// Start background music for start screen
	var musicVolume = storage.musicVolume === undefined ? 1.0 : storage.musicVolume;
	if (musicVolume > 0) {
		LK.playMusic('background', {
			fade: {
				start: 0,
				end: musicVolume * 0.8,
				duration: 2000
			}
		});
	}
}
function startGame() {
	gameState = 'playing';
	if (startScreen) {
		game.removeChild(startScreen);
		startScreen = null;
	}
	if (optionsMenu) {
		game.removeChild(optionsMenu);
		optionsMenu = null;
	}
	// Clear any existing game elements
	for (var i = 0; i < gameElements.length; i++) {
		if (gameElements[i].parent) {
			gameElements[i].parent.removeChild(gameElements[i]);
		}
	}
	gameElements = [];
	// Reset game state
	grid = [];
	selectedGem = null;
	score = 0;
	multiplier = 1;
	isProcessing = false;
	cascadeCount = 0;
	gameTimeLeft = 60;
	// Set up extreme mode if selected
	if (gameMode === 'extreme') {
		extremeGemType = Math.floor(Math.random() * GEM_TYPES);
	}
	// Clear existing timer
	if (gameTimer) {
		LK.clearInterval(gameTimer);
	}
	// Start countdown timer
	gameTimer = LK.setInterval(function () {
		gameTimeLeft--;
		if (timerTxt) {
			timerTxt.setText('Time: ' + gameTimeLeft);
		}
		// Change color when time is running low
		if (gameTimeLeft <= 10 && timerTxt) {
			timerTxt.fill = 0xFF0000;
		} else if (gameTimeLeft <= 30 && timerTxt) {
			timerTxt.fill = 0xFF8800;
		}
		// Game over when time runs out
		if (gameTimeLeft <= 0) {
			LK.clearInterval(gameTimer);
			gameTimer = null;
			LK.showGameOver();
		}
	}, 1000);
	// Create animated star background for gameplay
	for (var i = 0; i < 50; i++) {
		var star = LK.getAsset('starBg', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		star.x = Math.random() * 2048;
		star.y = Math.random() * 2732;
		star.alpha = Math.random() * 0.8 + 0.2;
		game.addChild(star);
		gameElements.push(star);
		// Animate each star with twinkling effect
		tween(star, {
			alpha: Math.random() * 0.3 + 0.1
		}, {
			duration: Math.random() * 2000 + 1000,
			easing: tween.easeInOut,
			loop: true,
			yoyo: true
		});
		// Add gentle floating movement
		tween(star, {
			y: star.y + (Math.random() * 100 - 50)
		}, {
			duration: Math.random() * 4000 + 2000,
			easing: tween.easeInOut,
			loop: true,
			yoyo: true
		});
	}
	// Initialize score display
	scoreTxt = new Text2('Score: 0', {
		size: 100,
		fill: 0xFFFFFF
	});
	scoreTxt.anchor.set(0.5, 1);
	LK.gui.bottom.addChild(scoreTxt);
	gameElements.push(scoreTxt);
	multiplierTxt = new Text2('Multiplier: x1', {
		size: 70,
		fill: 0xFFFF00
	});
	multiplierTxt.anchor.set(0.5, 1);
	multiplierTxt.y = -120;
	LK.gui.bottom.addChild(multiplierTxt);
	gameElements.push(multiplierTxt);
	timerTxt = new Text2('Time: 60', {
		size: 100,
		fill: 0xFF4444
	});
	timerTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(timerTxt);
	gameElements.push(timerTxt);
	// Add extreme mode indicator if in extreme mode
	if (gameMode === 'extreme') {
		var gemTypeNames = ['Red', 'Blue', 'Green', 'Yellow', 'Purple', 'Orange'];
		extremeGemTxt = new Text2('EXTREME MODE - Only ' + gemTypeNames[extremeGemType] + ' gems score!', {
			size: 60,
			fill: 0xFF4444
		});
		extremeGemTxt.anchor.set(0.5, 0);
		extremeGemTxt.y = 120;
		LK.gui.top.addChild(extremeGemTxt);
		gameElements.push(extremeGemTxt);
	}
	// Create menu button
	var menuButton = LK.getAsset('menuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.6,
		scaleY: 0.6
	});
	menuButton.x = 1800;
	menuButton.y = 200;
	menuButton.alpha = 0.8;
	game.addChild(menuButton);
	gameElements.push(menuButton);
	// Create menu button text
	var menuButtonText = new Text2('MENU', {
		size: 60,
		fill: 0xFFFFFF
	});
	menuButtonText.anchor.set(0.5, 0.5);
	menuButtonText.x = 1800;
	menuButtonText.y = 200;
	game.addChild(menuButtonText);
	gameElements.push(menuButtonText);
	// Add click handler for menu button
	menuButton.down = function (x, y, obj) {
		// Clear game timer
		if (gameTimer) {
			LK.clearInterval(gameTimer);
			gameTimer = null;
		}
		// Return to main menu
		showStartScreen();
	};
	// Initialize the game
	initializeGrid();
	updateScore();
	// Apply sound volume settings
	updateAllSoundVolumes();
	// Start background music with current volume setting
	var musicVolume = storage.musicVolume === undefined ? 1.0 : storage.musicVolume;
	if (musicVolume > 0) {
		LK.playMusic('background', {
			fade: {
				start: 0,
				end: musicVolume * 0.9,
				duration: 1000
			}
		});
	}
	// Continue spaceship animation during gameplay
	if (!spaceship || !spaceship.parent) {
		createSpaceship();
	}
	// Continue UFO animation during gameplay
	if (!ufo || !ufo.parent) {
		createUfo();
	}
}
function showOptionsMenu() {
	gameState = 'options';
	if (optionsMenu) {
		game.removeChild(optionsMenu);
	}
	optionsMenu = new OptionsMenu();
	game.addChild(optionsMenu);
}
function hideOptionsMenu() {
	gameState = 'menu';
	if (optionsMenu) {
		game.removeChild(optionsMenu);
		optionsMenu = null;
	}
}
function createSpaceship() {
	if (spaceship) {
		game.removeChild(spaceship);
	}
	spaceship = LK.getAsset('spaceship', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Start from left side, random Y position
	spaceship.x = -100;
	spaceship.y = Math.random() * 1800 + 400; // Random position between 400 and 2200
	spaceship.alpha = 0.3;
	game.addChild(spaceship);
	// Animate spaceship moving across screen
	tween(spaceship, {
		x: 2148 // Move to right edge
	}, {
		duration: Math.random() * 8000 + 12000,
		// 12-20 seconds to cross screen
		easing: tween.linear,
		onFinish: function onFinish() {
			// When spaceship reaches right edge, create a new one
			LK.setTimeout(function () {
				createSpaceship();
			}, Math.random() * 5000 + 2000); // Wait 2-7 seconds before next spaceship
		}
	});
}
function createUfo() {
	if (ufo) {
		game.removeChild(ufo);
	}
	ufo = LK.getAsset('ufo', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Start from right side, random Y position
	ufo.x = 2148;
	ufo.y = Math.random() * 1200 + 300; // Random position between 300 and 1500
	ufo.alpha = 0.4;
	game.addChild(ufo);
	// Animate UFO moving across screen from right to left
	tween(ufo, {
		x: -150 // Move to left edge
	}, {
		duration: Math.random() * 10000 + 15000,
		// 15-25 seconds to cross screen
		easing: tween.linear,
		onFinish: function onFinish() {
			// When UFO reaches left edge, create a new one
			LK.setTimeout(function () {
				createUfo();
			}, Math.random() * 8000 + 3000); // Wait 3-11 seconds before next UFO
		}
	});
	// Add subtle bobbing motion to UFO
	tween(ufo, {
		y: ufo.y + 30
	}, {
		duration: 2000,
		easing: tween.easeInOut,
		loop: true,
		yoyo: true
	});
}
var howToPlayScreen = null;
function showHowToPlayScreen() {
	gameState = 'howtoplay';
	if (howToPlayScreen) {
		game.removeChild(howToPlayScreen);
	}
	howToPlayScreen = new HowToPlayScreen();
	game.addChild(howToPlayScreen);
}
function hideHowToPlayScreen() {
	gameState = 'menu';
	if (howToPlayScreen) {
		game.removeChild(howToPlayScreen);
		howToPlayScreen = null;
	}
}
var feedbackScreen = null;
function showFeedbackScreen() {
	gameState = 'feedback';
	if (feedbackScreen) {
		game.removeChild(feedbackScreen);
	}
	feedbackScreen = new FeedbackScreen();
	game.addChild(feedbackScreen);
}
function hideFeedbackScreen() {
	gameState = 'menu';
	if (feedbackScreen) {
		game.removeChild(feedbackScreen);
		feedbackScreen = null;
	}
}
function updateAllSoundVolumes() {
	var musicVolume = storage.musicVolume === undefined ? 1.0 : storage.musicVolume;
	var soundEffectsVolume = storage.soundEffectsVolume === undefined ? 1.0 : storage.soundEffectsVolume;
	// Re-initialize sound assets with new volumes
	// Update background music volume if it's playing
	if (musicVolume > 0) {
		if (gameState === 'playing') {
			LK.stopMusic();
			LK.playMusic('background', {
				fade: {
					start: 0,
					end: musicVolume * 0.9,
					duration: 500
				}
			});
		} else if (gameState === 'menu') {
			LK.stopMusic();
			LK.playMusic('background', {
				fade: {
					start: 0,
					end: musicVolume * 0.8,
					duration: 500
				}
			});
		}
	} else {
		LK.stopMusic();
	}
}

===================================================================
--- original.js
+++ change.js
@@ -692,26 +692,8 @@
 		showFeedbackScreen();
 	};
 	return self;
 });
-var UFO = Container.expand(function () {
-	var self = Container.call(this);
-	var ufoBody = self.attachAsset('ufo', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	var alien = self.attachAsset('alien', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	alien.y = -5;
-	// Add gentle floating animation to the UFO
-	self.update = function () {
-		self.y += Math.sin(LK.ticks * 0.05) * 0.5;
-		ufoBody.rotation += 0.01;
-	};
-	return self;
-});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -1102,9 +1084,9 @@
 	game.addChild(startScreen);
 	// Start spaceship animation
 	createSpaceship();
 	// Start UFO animation
-	createUFO();
+	createUfo();
 	// Start background music for start screen
 	var musicVolume = storage.musicVolume === undefined ? 1.0 : storage.musicVolume;
 	if (musicVolume > 0) {
 		LK.playMusic('background', {
@@ -1286,9 +1268,9 @@
 		createSpaceship();
 	}
 	// Continue UFO animation during gameplay
 	if (!ufo || !ufo.parent) {
-		createUFO();
+		createUfo();
 	}
 }
 function showOptionsMenu() {
 	gameState = 'options';
@@ -1332,32 +1314,44 @@
 			}, Math.random() * 5000 + 2000); // Wait 2-7 seconds before next spaceship
 		}
 	});
 }
-function createUFO() {
+function createUfo() {
 	if (ufo) {
 		game.removeChild(ufo);
 	}
-	ufo = new UFO();
-	// Start from right side, random Y position in upper area
+	ufo = LK.getAsset('ufo', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Start from right side, random Y position
 	ufo.x = 2148;
-	ufo.y = Math.random() * 800 + 300; // Random position between 300 and 1100
+	ufo.y = Math.random() * 1200 + 300; // Random position between 300 and 1500
 	ufo.alpha = 0.4;
 	game.addChild(ufo);
-	// Animate UFO moving slowly across screen from right to left
+	// Animate UFO moving across screen from right to left
 	tween(ufo, {
-		x: -200 // Move to left edge
+		x: -150 // Move to left edge
 	}, {
-		duration: Math.random() * 15000 + 20000,
-		// 20-35 seconds to cross screen (slower than spaceship)
+		duration: Math.random() * 10000 + 15000,
+		// 15-25 seconds to cross screen
 		easing: tween.linear,
 		onFinish: function onFinish() {
 			// When UFO reaches left edge, create a new one
 			LK.setTimeout(function () {
-				createUFO();
-			}, Math.random() * 10000 + 8000); // Wait 8-18 seconds before next UFO
+				createUfo();
+			}, Math.random() * 8000 + 3000); // Wait 3-11 seconds before next UFO
 		}
 	});
+	// Add subtle bobbing motion to UFO
+	tween(ufo, {
+		y: ufo.y + 30
+	}, {
+		duration: 2000,
+		easing: tween.easeInOut,
+		loop: true,
+		yoyo: true
+	});
 }
 var howToPlayScreen = null;
 function showHowToPlayScreen() {
 	gameState = 'howtoplay';