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

/**** 
* Classes
****/ 
var Gem = Container.expand(function (type) {
	var self = Container.call(this);
	self.gemType = type;
	self.gridX = 0;
	self.gridY = 0;
	self.isAnimating = false;
	self.isScaling = false;
	var gemAssets = ['gem_red', 'gem_blue', 'gem_green', 'gem_yellow', 'gem_purple', 'gem_orange', 'gem_cyan', 'gem_pink'];
	var gemGraphics = self.attachAsset(gemAssets[type], {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: CELL_SIZE / 256,
		scaleY: CELL_SIZE / 256
	});
	self.setGridPosition = function (gridX, gridY) {
		self.gridX = gridX;
		self.gridY = gridY;
		self.x = boardStartX + gridX * CELL_SIZE + CELL_SIZE / 2;
		self.y = boardStartY + gridY * CELL_SIZE + CELL_SIZE / 2;
	};
	self.animateToPosition = function (targetX, targetY, duration, onComplete) {
		if (duration === undefined) duration = 300;
		self.isAnimating = true;
		tween(self, {
			x: targetX,
			y: targetY
		}, {
			duration: duration,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.isAnimating = false;
				if (onComplete) onComplete();
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x8B4513 // Brown background
});

/**** 
* Game Code
****/ 
// Gold yellow
// Deep pink
// Medium slate blue
var GAME_STATE_HOME = 0;
var GAME_STATE_PLAYING = 1;
var GAME_STATE_PAUSED = 2;
var currentGameState = GAME_STATE_HOME;
// Pause menu elements
var pauseMenuContainer = null;
var pauseMenuBg = null;
var volumeButton = null;
var exitButton = null;
var resumeButton = null;
var volumeEnabled = storage.volumeEnabled !== undefined ? storage.volumeEnabled : true;
var BOARD_SIZE = 8; // Smaller board for kids - easier to see patterns
var CELL_SIZE = Math.floor(Math.min(2048, 2732 - 500) / BOARD_SIZE * 0.95); // Bigger gems, leave more space for UI
var BOARD_TOTAL_SIZE = BOARD_SIZE * CELL_SIZE;
var boardStartX = (2048 - BOARD_TOTAL_SIZE) / 2;
var boardStartY = (2732 - BOARD_TOTAL_SIZE) / 2 + 100; // Offset for top UI
var board = [];
var gems = [];
var selectedGem = null;
var isProcessingMatches = false;
var isDragging = false;
var dragStartX = 0;
var dragStartY = 0;
var score = 0;
// Home screen elements
var homeContainer = null;
var playButton = null;
var titleText = null;
var textInputField = null;
var textInputBorder = null;
var textInputText = null;
var inputText = '';
var keyboardContainer = null;
var keyboardVisible = false;
var keyboardKeys = [];
var keyboardLayout = [['Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P'], ['A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L'], ['Z', 'X', 'C', 'V', 'B', 'N', 'M']];
function createPauseMenu() {
	pauseMenuContainer = new Container();
	game.addChild(pauseMenuContainer);
	// Create semi-transparent background
	pauseMenuBg = pauseMenuContainer.attachAsset('pauseMenuBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2
	});
	// Pause menu title
	var pauseTitle = new Text2('GAME PAUSED', {
		size: 80,
		fill: 0xFFFFFF
	});
	pauseTitle.anchor.set(0.5, 0.5);
	pauseTitle.x = 2048 / 2;
	pauseTitle.y = 2732 / 2 - 200;
	pauseMenuContainer.addChild(pauseTitle);
	// Resume button
	resumeButton = pauseMenuContainer.attachAsset('menuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2 - 100
	});
	var resumeText = new Text2('RESUME GAME', {
		size: 50,
		fill: 0xFFFFFF
	});
	resumeText.anchor.set(0.5, 0.5);
	resumeText.x = 2048 / 2;
	resumeText.y = 2732 / 2 - 100;
	pauseMenuContainer.addChild(resumeText);
	// Volume toggle button
	volumeButton = pauseMenuContainer.attachAsset('volumeToggle', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2
	});
	var volumeText = new Text2(volumeEnabled ? 'VOLUME: ON' : 'VOLUME: OFF', {
		size: 40,
		fill: 0xFFFFFF
	});
	volumeText.anchor.set(0.5, 0.5);
	volumeText.x = 2048 / 2;
	volumeText.y = 2732 / 2;
	pauseMenuContainer.addChild(volumeText);
	// Exit button
	exitButton = pauseMenuContainer.attachAsset('menuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2 + 100
	});
	var exitText = new Text2('EXIT TO MENU', {
		size: 50,
		fill: 0xFFFFFF
	});
	exitText.anchor.set(0.5, 0.5);
	exitText.x = 2048 / 2;
	exitText.y = 2732 / 2 + 100;
	pauseMenuContainer.addChild(exitText);
	// Store reference to volume text for updates
	pauseMenuContainer.volumeText = volumeText;
}
function createCustomKeyboard() {
	if (keyboardContainer) return; // Already exists
	keyboardContainer = new Container();
	game.addChild(keyboardContainer);
	// Create keyboard background
	var keyboardBg = keyboardContainer.attachAsset('keyboardBg', {
		anchorX: 0.5,
		anchorY: 1.0,
		x: 2048 / 2,
		y: 2732
	});
	// Clear previous keys
	keyboardKeys = [];
	var startY = 2732 - 750; // Start position for keys
	var keySpacing = 150;
	var rowSpacing = 110;
	// Create letter keys
	for (var row = 0; row < keyboardLayout.length; row++) {
		var rowKeys = keyboardLayout[row];
		var rowWidth = rowKeys.length * keySpacing;
		var startX = (2048 - rowWidth) / 2 + keySpacing / 2;
		for (var col = 0; col < rowKeys.length; col++) {
			var letter = rowKeys[col];
			var keyX = startX + col * keySpacing;
			var keyY = startY + row * rowSpacing;
			var key = keyboardContainer.attachAsset('keyboardKey', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: keyX,
				y: keyY
			});
			var keyText = new Text2(letter, {
				size: 45,
				fill: 0xFFFFFF
			});
			keyText.anchor.set(0.5, 0.5);
			keyText.x = keyX;
			keyText.y = keyY;
			keyboardContainer.addChild(keyText);
			keyboardKeys.push({
				key: key,
				text: keyText,
				letter: letter,
				x: keyX,
				y: keyY,
				width: 140,
				height: 100
			});
		}
	}
	// Create space key
	var spaceKey = keyboardContainer.attachAsset('keyboardSpaceKey', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: startY + 3 * rowSpacing
	});
	var spaceText = new Text2('SPACE', {
		size: 40,
		fill: 0xFFFFFF
	});
	spaceText.anchor.set(0.5, 0.5);
	spaceText.x = 2048 / 2;
	spaceText.y = startY + 3 * rowSpacing;
	keyboardContainer.addChild(spaceText);
	keyboardKeys.push({
		key: spaceKey,
		text: spaceText,
		letter: ' ',
		x: 2048 / 2,
		y: startY + 3 * rowSpacing,
		width: 400,
		height: 100
	});
	// Create backspace key
	var backspaceKey = keyboardContainer.attachAsset('keyboardBackspaceKey', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2 - 300,
		y: startY + 3 * rowSpacing
	});
	var backspaceText = new Text2('←', {
		size: 50,
		fill: 0xFFFFFF
	});
	backspaceText.anchor.set(0.5, 0.5);
	backspaceText.x = 2048 / 2 - 300;
	backspaceText.y = startY + 3 * rowSpacing;
	keyboardContainer.addChild(backspaceText);
	keyboardKeys.push({
		key: backspaceKey,
		text: backspaceText,
		letter: 'BACKSPACE',
		x: 2048 / 2 - 300,
		y: startY + 3 * rowSpacing,
		width: 200,
		height: 100
	});
	// Create done key
	var doneKey = keyboardContainer.attachAsset('keyboardDoneKey', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2 + 300,
		y: startY + 3 * rowSpacing
	});
	var doneText = new Text2('DONE', {
		size: 40,
		fill: 0xFFFFFF
	});
	doneText.anchor.set(0.5, 0.5);
	doneText.x = 2048 / 2 + 300;
	doneText.y = startY + 3 * rowSpacing;
	keyboardContainer.addChild(doneText);
	keyboardKeys.push({
		key: doneKey,
		text: doneText,
		letter: 'DONE',
		x: 2048 / 2 + 300,
		y: startY + 3 * rowSpacing,
		width: 200,
		height: 100
	});
	// Animate keyboard sliding up
	keyboardContainer.y = 800;
	tween(keyboardContainer, {
		y: 0
	}, {
		duration: 300,
		easing: tween.easeOut
	});
	keyboardVisible = true;
}
function hideCustomKeyboard() {
	if (!keyboardContainer) return;
	tween(keyboardContainer, {
		y: 800
	}, {
		duration: 300,
		easing: tween.easeIn,
		onFinish: function onFinish() {
			if (keyboardContainer) {
				keyboardContainer.destroy();
				keyboardContainer = null;
				keyboardKeys = [];
				keyboardVisible = false;
			}
		}
	});
}
function handleKeyboardInput(letter) {
	if (letter === 'BACKSPACE') {
		if (inputText.length > 0) {
			inputText = inputText.slice(0, -1);
		}
	} else if (letter === 'DONE') {
		hideCustomKeyboard();
		return;
	} else if (letter === ' ') {
		if (inputText.length < 20) {
			inputText += ' ';
		}
	} else {
		if (inputText.length < 20) {
			inputText += letter;
		}
	}
	// Update text display
	if (textInputText) {
		if (inputText.length === 0) {
			textInputText.setText('Enter your name...');
			textInputText.fill = 0x888888;
		} else {
			textInputText.setText(inputText);
			textInputText.fill = 0x000000;
		}
	}
}
function createHomeScreen() {
	homeContainer = new Container();
	game.addChild(homeContainer);
	// Create title using gemMatchTitle asset
	titleText = homeContainer.attachAsset('gemMatchTitle', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 800
	});
	// Create play button using playButton asset
	playButton = homeContainer.attachAsset('playButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 1400
	});
	// Play button text removed per request
	// Create text input field under play button
	textInputBorder = homeContainer.attachAsset('textInputBorder', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 1600
	});
	textInputField = homeContainer.attachAsset('textInputField', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 1600
	});
	// Create placeholder text for input field
	textInputText = new Text2('Enter your name...', {
		size: 50,
		fill: 0x888888
	});
	textInputText.anchor.set(0.5, 0.5);
	textInputText.x = 2048 / 2;
	textInputText.y = 1600;
	homeContainer.addChild(textInputText);
	// Add bouncy animation to play button
	tween(playButton, {
		scaleX: 1.05,
		scaleY: 1.05
	}, {
		duration: 1000,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			tween(playButton, {
				scaleX: 1.0,
				scaleY: 1.0
			}, {
				duration: 1000,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					// Restart the bounce animation
					if (currentGameState === GAME_STATE_HOME && playButton) {
						tween(playButton, {
							scaleX: 1.05,
							scaleY: 1.05
						}, {
							duration: 1000,
							easing: tween.easeInOut
						});
					}
				}
			});
		}
	});
	// Add super vibrant rainbow color animation with bounce effect
	var rainbowColors = [0xFF0080, 0x00FF80, 0x8000FF, 0xFF8000, 0x0080FF, 0xFF4080, 0x80FF00, 0xFF0040];
	var colorIndex = 0;
	function animateTitle() {
		if (currentGameState === GAME_STATE_HOME && titleText && titleText.fill !== undefined) {
			// Color transition
			tween(titleText, {
				fill: rainbowColors[colorIndex]
			}, {
				duration: 600,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					colorIndex = (colorIndex + 1) % rainbowColors.length;
					LK.setTimeout(animateTitle, 100);
				}
			});
			// Add bouncy scale animation
			if (titleText.scaleX !== undefined && titleText.scaleY !== undefined) {
				tween(titleText, {
					scaleX: 1.1,
					scaleY: 1.1
				}, {
					duration: 300,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						if (titleText && titleText.scaleX !== undefined && titleText.scaleY !== undefined) {
							tween(titleText, {
								scaleX: 1.0,
								scaleY: 1.0
							}, {
								duration: 300,
								easing: tween.easeIn
							});
						}
					}
				});
			}
		}
	}
	animateTitle();
}
function startGame() {
	currentGameState = GAME_STATE_PLAYING;
	// Reset moves for new game
	movesRemaining = maxMoves;
	// Remove home screen
	if (homeContainer) {
		homeContainer.destroy();
		homeContainer = null;
		playButton = null;
		titleText = null;
	}
	// Create game elements
	createGameElements();
	initializeBoard();
}
function createGameElements() {
	// Create board background
	var boardBackground = game.addChild(LK.getAsset('boardBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: boardStartY + BOARD_TOTAL_SIZE / 2,
		scaleX: BOARD_TOTAL_SIZE / 960,
		scaleY: BOARD_TOTAL_SIZE / 960
	}));
	// Initialize score display with bright colors
	scoreTxt = new Text2('Score: 0', {
		size: 90,
		fill: 0xFF1493 // Bright pink text
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	scoreTxt.y = 80;
	// Add target score display
	targetTxt = new Text2('Target: ' + targetScore, {
		size: 70,
		fill: 0x32CD32 // Bright green text
	});
	targetTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(targetTxt);
	targetTxt.y = 180;
	// Add encouraging message display
	messageTxt = new Text2('Match the colorful gems!', {
		size: 60,
		fill: 0xFFD700 // Golden yellow text
	});
	messageTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(messageTxt);
	messageTxt.y = 250;
	// Add moves display next to target
	movesTxt = new Text2('Moves: ' + movesRemaining, {
		size: 70,
		fill: 0xFF4500 // Orange red text
	});
	movesTxt.anchor.set(0, 0);
	LK.gui.top.addChild(movesTxt);
	movesTxt.x = targetTxt.x + targetTxt.width / 2 + 50;
	movesTxt.y = 180;
	// Create pause button below the game board
	pauseButton = game.addChild(LK.getAsset('pauseButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: boardStartY + BOARD_TOTAL_SIZE + 150
	}));
	// Pause button text removed per request
}
// UI elements - declare globally but create in game
var scoreTxt = null;
var targetTxt = null;
var messageTxt = null;
var movesTxt = null;
var pauseButton = null;
var targetScore = 500; // Kid-friendly target
var maxMoves = 20; // Limited moves for the game
var movesRemaining = maxMoves;
function initializeBoard() {
	// Create 2D array for board
	for (var y = 0; y < BOARD_SIZE; y++) {
		board[y] = [];
		gems[y] = [];
		for (var x = 0; x < BOARD_SIZE; x++) {
			var gemType = Math.floor(Math.random() * 8);
			var gem = new Gem(gemType);
			gem.setGridPosition(x, y);
			board[y][x] = gemType;
			gems[y][x] = gem;
			game.addChild(gem);
		}
	}
	// Remove initial matches
	removeInitialMatches();
}
function removeInitialMatches() {
	var foundMatches = true;
	var iterations = 0;
	while (foundMatches && iterations < 10) {
		foundMatches = false;
		iterations++;
		for (var y = 0; y < BOARD_SIZE; y++) {
			for (var x = 0; x < BOARD_SIZE; x++) {
				if (hasMatchAt(x, y)) {
					var newType = Math.floor(Math.random() * 8);
					board[y][x] = newType;
					gems[y][x].gemType = newType;
					// Update gem graphics by recreating
					gems[y][x].destroy();
					var newGem = new Gem(newType);
					newGem.setGridPosition(x, y);
					gems[y][x] = newGem;
					game.addChild(newGem);
					foundMatches = true;
				}
			}
		}
	}
}
function hasMatchAt(x, y) {
	if (board[y][x] === undefined || board[y][x] === -1) return false;
	var gemType = board[y][x];
	// Check horizontal match
	var horizontalCount = 1;
	// Check left
	for (var i = x - 1; i >= 0 && board[y] && board[y][i] === gemType; i--) {
		horizontalCount++;
	}
	// Check right
	for (var i = x + 1; i < BOARD_SIZE && board[y] && board[y][i] === gemType; i++) {
		horizontalCount++;
	}
	// Check vertical match
	var verticalCount = 1;
	// Check up
	for (var i = y - 1; i >= 0 && board[i] && board[i][x] === gemType; i--) {
		verticalCount++;
	}
	// Check down
	for (var i = y + 1; i < BOARD_SIZE && board[i] && board[i][x] === gemType; i++) {
		verticalCount++;
	}
	return horizontalCount >= 3 || verticalCount >= 3;
}
function getGemAt(gameX, gameY) {
	var gridX = Math.floor((gameX - boardStartX) / CELL_SIZE);
	var gridY = Math.floor((gameY - boardStartY) / CELL_SIZE);
	if (gridX >= 0 && gridX < BOARD_SIZE && gridY >= 0 && gridY < BOARD_SIZE) {
		return gems[gridY][gridX];
	}
	return null;
}
function isAdjacent(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 (!gem1 || !gem2 || gem1.isAnimating || gem2.isAnimating) return;
	// Store original positions and types
	var originalGem1X = gem1.gridX;
	var originalGem1Y = gem1.gridY;
	var originalGem2X = gem2.gridX;
	var originalGem2Y = gem2.gridY;
	var originalGem1Type = gem1.gemType;
	var originalGem2Type = gem2.gemType;
	// Calculate original visual positions
	var originalGem1PosX = boardStartX + originalGem1X * CELL_SIZE + CELL_SIZE / 2;
	var originalGem1PosY = boardStartY + originalGem1Y * CELL_SIZE + CELL_SIZE / 2;
	var originalGem2PosX = boardStartX + originalGem2X * CELL_SIZE + CELL_SIZE / 2;
	var originalGem2PosY = boardStartY + originalGem2Y * CELL_SIZE + CELL_SIZE / 2;
	// Temporarily update board and gem properties to test for matches
	board[originalGem1Y][originalGem1X] = originalGem2Type;
	board[originalGem2Y][originalGem2X] = originalGem1Type;
	gem1.gemType = originalGem2Type;
	gem2.gemType = originalGem1Type;
	// Check if this swap creates any matches
	var hasMatch = hasMatchAt(originalGem1X, originalGem1Y) || hasMatchAt(originalGem2X, originalGem2Y);
	if (hasMatch) {
		// Valid swap - complete the swap
		gem1.setGridPosition(originalGem2X, originalGem2Y);
		gem2.setGridPosition(originalGem1X, originalGem1Y);
		// Update gems array
		gems[originalGem1Y][originalGem1X] = gem2;
		gems[originalGem2Y][originalGem2X] = gem1;
		// Animate to swapped positions
		gem1.animateToPosition(originalGem2PosX, originalGem2PosY, 200);
		gem2.animateToPosition(originalGem1PosX, originalGem1PosY, 200, function () {
			if (volumeEnabled) {
				var swapSound = LK.getSound('swap');
				if (swapSound) swapSound.play();
			}
			// Decrement moves on successful swap
			movesRemaining--;
			if (movesTxt) {
				movesTxt.setText('Moves: ' + movesRemaining);
				// Color code the moves display
				if (movesRemaining <= 3) {
					movesTxt.fill = 0xFF0000; // Red - critical
				} else if (movesRemaining <= 5) {
					movesTxt.fill = 0xFF8C00; // Orange - warning  
				} else {
					movesTxt.fill = 0xFF4500; // Orange red - normal
				}
			}
			checkForMatches();
		});
	} else {
		// Invalid swap - revert changes
		board[originalGem1Y][originalGem1X] = originalGem1Type;
		board[originalGem2Y][originalGem2X] = originalGem2Type;
		gem1.gemType = originalGem1Type;
		gem2.gemType = originalGem2Type;
		// Animate gems briefly toward each other then back
		var swapDistance = 30;
		var gem1SwipePosX = originalGem1PosX + (originalGem2PosX - originalGem1PosX) * 0.3;
		var gem1SwipePosY = originalGem1PosY + (originalGem2PosY - originalGem1PosY) * 0.3;
		var gem2SwipePosX = originalGem2PosX + (originalGem1PosX - originalGem2PosX) * 0.3;
		var gem2SwipePosY = originalGem2PosY + (originalGem1PosY - originalGem2PosY) * 0.3;
		// First animate toward each other
		gem1.animateToPosition(gem1SwipePosX, gem1SwipePosY, 150, function () {
			// Then animate back to original positions
			gem1.animateToPosition(originalGem1PosX, originalGem1PosY, 150);
		});
		gem2.animateToPosition(gem2SwipePosX, gem2SwipePosY, 150, function () {
			// Then animate back to original positions
			gem2.animateToPosition(originalGem2PosX, originalGem2PosY, 150);
			if (volumeEnabled) {
				var invalidSound = LK.getSound('invalid_move');
				if (invalidSound) invalidSound.play();
			}
		});
	}
}
function checkForMatches() {
	if (isProcessingMatches) return;
	var matchesFound = [];
	// Find all horizontal matches first
	for (var y = 0; y < BOARD_SIZE; y++) {
		for (var x = 0; x < BOARD_SIZE; x++) {
			if (board[y][x] === -1) continue; // Skip empty cells
			var gemType = board[y][x];
			var horizontalCount = 1;
			var horizontalMatches = [{
				x: x,
				y: y
			}];
			// Check right
			for (var i = x + 1; i < BOARD_SIZE && board[y][i] === gemType; i++) {
				horizontalCount++;
				horizontalMatches.push({
					x: i,
					y: y
				});
			}
			if (horizontalCount >= 3) {
				// Add all horizontal matches, avoiding duplicates
				for (var i = 0; i < horizontalMatches.length; i++) {
					var match = horizontalMatches[i];
					var alreadyFound = false;
					for (var j = 0; j < matchesFound.length; j++) {
						if (matchesFound[j].x === match.x && matchesFound[j].y === match.y) {
							alreadyFound = true;
							break;
						}
					}
					if (!alreadyFound) {
						matchesFound.push(match);
					}
				}
			}
		}
	}
	// Find all vertical matches
	for (var x = 0; x < BOARD_SIZE; x++) {
		for (var y = 0; y < BOARD_SIZE; y++) {
			if (board[y][x] === -1) continue; // Skip empty cells
			var gemType = board[y][x];
			var verticalCount = 1;
			var verticalMatches = [{
				x: x,
				y: y
			}];
			// Check down
			for (var i = y + 1; i < BOARD_SIZE && board[i][x] === gemType; i++) {
				verticalCount++;
				verticalMatches.push({
					x: x,
					y: i
				});
			}
			if (verticalCount >= 3) {
				// Add all vertical matches, avoiding duplicates
				for (var i = 0; i < verticalMatches.length; i++) {
					var match = verticalMatches[i];
					var alreadyFound = false;
					for (var j = 0; j < matchesFound.length; j++) {
						if (matchesFound[j].x === match.x && matchesFound[j].y === match.y) {
							alreadyFound = true;
							break;
						}
					}
					if (!alreadyFound) {
						matchesFound.push(match);
					}
				}
			}
		}
	}
	// Check for 2x2 square matches and add rows if found
	for (var y = 0; y < BOARD_SIZE - 1; y++) {
		for (var x = 0; x < BOARD_SIZE - 1; x++) {
			var squareMatches = checkSquareMatch(x, y);
			if (squareMatches.length === 4) {
				// Check if any of these squares are already in our matches
				var hasSquareMatch = false;
				for (var i = 0; i < squareMatches.length; i++) {
					for (var j = 0; j < matchesFound.length; j++) {
						if (squareMatches[i].x === matchesFound[j].x && squareMatches[i].y === matchesFound[j].y) {
							hasSquareMatch = true;
							break;
						}
					}
					if (hasSquareMatch) break;
				}
				if (hasSquareMatch) {
					// Add entire rows for square matches
					for (var rowY = y; rowY <= y + 1; rowY++) {
						for (var rowX = 0; rowX < BOARD_SIZE; rowX++) {
							var alreadyFound = false;
							for (var j = 0; j < matchesFound.length; j++) {
								if (matchesFound[j].x === rowX && matchesFound[j].y === rowY) {
									alreadyFound = true;
									break;
								}
							}
							if (!alreadyFound) {
								matchesFound.push({
									x: rowX,
									y: rowY
								});
							}
						}
					}
				}
			}
		}
	}
	if (matchesFound.length > 0) {
		isProcessingMatches = true;
		removeMatches(matchesFound);
	} else {
		// No matches found, check if moves are depleted
		if (movesRemaining <= 0) {
			messageTxt.setText('NO MORE MOVES!');
			LK.effects.flashScreen(0xFF0000, 1000); // Red flash for game over
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 1500);
		}
	}
}
function checkSquareMatch(x, y) {
	if (x >= BOARD_SIZE - 1 || y >= BOARD_SIZE - 1) return [];
	var gemType = board[y][x];
	// Check if all 4 positions in 2x2 square have same gem type
	if (board[y][x] === gemType && board[y][x + 1] === gemType && board[y + 1][x] === gemType && board[y + 1][x + 1] === gemType) {
		return [{
			x: x,
			y: y
		}, {
			x: x + 1,
			y: y
		}, {
			x: x,
			y: y + 1
		}, {
			x: x + 1,
			y: y + 1
		}];
	}
	return [];
}
function getRowsToRemove(matches) {
	var rowsToRemove = [];
	// Check if any 2x2 square matches exist
	for (var y = 0; y < BOARD_SIZE - 1; y++) {
		for (var x = 0; x < BOARD_SIZE - 1; x++) {
			var squareMatches = checkSquareMatch(x, y);
			if (squareMatches.length === 4) {
				// Check if this square is part of our current matches
				var isPartOfMatches = false;
				for (var i = 0; i < squareMatches.length; i++) {
					for (var j = 0; j < matches.length; j++) {
						if (squareMatches[i].x === matches[j].x && squareMatches[i].y === matches[j].y) {
							isPartOfMatches = true;
							break;
						}
					}
					if (isPartOfMatches) break;
				}
				if (isPartOfMatches) {
					// Add both rows to removal list
					if (rowsToRemove.indexOf(y) === -1) rowsToRemove.push(y);
					if (rowsToRemove.indexOf(y + 1) === -1) rowsToRemove.push(y + 1);
				}
			}
		}
	}
	return rowsToRemove;
}
function getMatchesAt(x, y) {
	if (board[y][x] === -1) return []; // Empty cell
	var gemType = board[y][x];
	var allMatches = [];
	// Check horizontal matches
	var horizontalMatches = [{
		x: x,
		y: y
	}];
	// Check left
	for (var i = x - 1; i >= 0 && board[y][i] === gemType; i--) {
		horizontalMatches.push({
			x: i,
			y: y
		});
	}
	// Check right
	for (var i = x + 1; i < BOARD_SIZE && board[y][i] === gemType; i++) {
		horizontalMatches.push({
			x: i,
			y: y
		});
	}
	if (horizontalMatches.length >= 3) {
		for (var i = 0; i < horizontalMatches.length; i++) {
			allMatches.push(horizontalMatches[i]);
		}
	}
	// Check vertical matches
	var verticalMatches = [{
		x: x,
		y: y
	}];
	// Check up
	for (var i = y - 1; i >= 0 && board[i][x] === gemType; i--) {
		verticalMatches.push({
			x: x,
			y: i
		});
	}
	// Check down
	for (var i = y + 1; i < BOARD_SIZE && board[i][x] === gemType; i++) {
		verticalMatches.push({
			x: x,
			y: i
		});
	}
	if (verticalMatches.length >= 3) {
		// Add vertical matches, avoiding duplicates from horizontal
		for (var i = 0; i < verticalMatches.length; i++) {
			var vMatch = verticalMatches[i];
			var alreadyExists = false;
			for (var j = 0; j < allMatches.length; j++) {
				if (allMatches[j].x === vMatch.x && allMatches[j].y === vMatch.y) {
					alreadyExists = true;
					break;
				}
			}
			if (!alreadyExists) {
				allMatches.push(vMatch);
			}
		}
	}
	return allMatches;
}
function removeMatches(matches) {
	// Check for 2x2 square matches and get rows to clear
	var rowsToRemove = getRowsToRemove(matches);
	var totalGemsToRemove = matches.length;
	// If we have a square match, add entire rows to removal
	if (rowsToRemove.length > 0) {
		var rowMatches = [];
		for (var i = 0; i < rowsToRemove.length; i++) {
			var rowY = rowsToRemove[i];
			for (var x = 0; x < BOARD_SIZE; x++) {
				rowMatches.push({
					x: x,
					y: rowY
				});
			}
		}
		// Combine with original matches, avoiding duplicates
		for (var i = 0; i < rowMatches.length; i++) {
			var rowMatch = rowMatches[i];
			var alreadyExists = false;
			for (var j = 0; j < matches.length; j++) {
				if (matches[j].x === rowMatch.x && matches[j].y === rowMatch.y) {
					alreadyExists = true;
					break;
				}
			}
			if (!alreadyExists) {
				matches.push(rowMatch);
			}
		}
		totalGemsToRemove = matches.length;
	}
	// Add score with celebration for big matches
	score += matches.length * 10;
	scoreTxt.setText('Score: ' + score);
	// Kid-friendly encouraging messages based on match size and square detection
	var encouragingMessages = ['Great job!', 'Awesome!', 'Fantastic!', 'Amazing!', 'Super cool!', 'You\'re doing great!', 'Keep going!', 'Brilliant!', 'Wonderful!'];
	if (rowsToRemove.length > 0) {
		messageTxt.setText('SQUARE POWER! ROW CLEARED!');
		LK.effects.flashScreen(0x00FF00, 1000); // Bright green flash for square matches
		if (volumeEnabled) {
			var squareSound = LK.getSound('square_match');
			if (squareSound) squareSound.play();
		}
	} else if (matches.length >= 6) {
		messageTxt.setText('WOW! INCREDIBLE!');
		LK.effects.flashScreen(0xFFD700, 800); // Extra long gold flash
		if (volumeEnabled) {
			var bigSound = LK.getSound('big_match');
			if (bigSound) bigSound.play();
		}
	} else if (matches.length >= 5) {
		messageTxt.setText('SUPER COMBO!');
		LK.effects.flashScreen(0xFFD700, 500); // Gold flash for 5+ matches
		if (volumeEnabled) {
			var bigSound = LK.getSound('big_match');
			if (bigSound) bigSound.play();
		}
	} else if (matches.length >= 4) {
		messageTxt.setText('GREAT MATCH!');
		LK.effects.flashScreen(0xFF69B4, 300); // Pink flash for 4+ matches
		if (volumeEnabled) {
			var bigSound = LK.getSound('big_match');
			if (bigSound) bigSound.play();
		}
	} else {
		var randomMessage = encouragingMessages[Math.floor(Math.random() * encouragingMessages.length)];
		messageTxt.setText(randomMessage);
		if (volumeEnabled) {
			var matchSound = LK.getSound('match');
			if (matchSound) matchSound.play();
		}
	}
	// Update target display with progress
	var progress = Math.min(score / targetScore, 1.0);
	var progressPercent = Math.floor(progress * 100);
	targetTxt.setText('Target: ' + targetScore + ' (' + progressPercent + '%)');
	// Encouraging messages based on progress
	if (progress >= 0.9) {
		targetTxt.fill = 0xFF6347; // Orange - almost there!
	} else if (progress >= 0.5) {
		targetTxt.fill = 0xFFD700; // Gold - halfway there!
	} else {
		targetTxt.fill = 0x32CD32; // Green - keep going!
	}
	// Check if target is reached
	if (score >= targetScore) {
		messageTxt.setText('🎉 YOU DID IT! 🎉');
		LK.effects.flashScreen(0x00FF00, 1000); // Bright green celebration
		LK.showYouWin();
	}
	// Flash and remove matched gems with rainbow colors
	var rainbowColors = [0xFF69B4, 0x00BFFF, 0x32CD32, 0xFFD700, 0xFF6347, 0x9370DB];
	for (var i = 0; i < matches.length; i++) {
		var match = matches[i];
		var gem = gems[match.y][match.x];
		if (gem) {
			var flashColor = rainbowColors[i % rainbowColors.length];
			LK.effects.flashObject(gem, flashColor, 300);
			tween(gem, {
				alpha: 0,
				scaleX: 1.5,
				// Make gems grow bigger before disappearing
				scaleY: 1.5
			}, {
				duration: 300,
				easing: tween.easeOut,
				// Bouncy effect
				onFinish: function onFinish() {
					// Properly destroy the gem after animation
					if (gem && gem.destroy) {
						gem.destroy();
					}
				}
			});
		}
		board[match.y][match.x] = -1; // Mark as empty
		gems[match.y][match.x] = null; // Clear gem reference
	}
	// Wait for animation then drop gems
	LK.setTimeout(function () {
		dropGems();
	}, 350);
}
function dropGems() {
	var moved = false;
	// Drop existing gems
	for (var x = 0; x < BOARD_SIZE; x++) {
		var writePos = BOARD_SIZE - 1;
		for (var y = BOARD_SIZE - 1; y >= 0; y--) {
			if (board[y][x] !== -1) {
				if (y !== writePos) {
					// Move gem down
					board[writePos][x] = board[y][x];
					gems[writePos][x] = gems[y][x];
					gems[writePos][x].setGridPosition(x, writePos);
					gems[writePos][x].animateToPosition(boardStartX + x * CELL_SIZE + CELL_SIZE / 2, boardStartY + writePos * CELL_SIZE + CELL_SIZE / 2, 200);
					board[y][x] = -1;
					gems[y][x] = null;
					moved = true;
				}
				writePos--;
			}
		}
	}
	// Fill empty spaces with new gems - ensure we fill from top to bottom
	for (var x = 0; x < BOARD_SIZE; x++) {
		for (var y = 0; y < BOARD_SIZE; y++) {
			if (board[y][x] === -1) {
				var newType = Math.floor(Math.random() * 8);
				var newGem = new Gem(newType);
				newGem.setGridPosition(x, y);
				newGem.y = boardStartY - (BOARD_SIZE - y) * CELL_SIZE + CELL_SIZE / 2; // Start above board
				newGem.animateToPosition(boardStartX + x * CELL_SIZE + CELL_SIZE / 2, boardStartY + y * CELL_SIZE + CELL_SIZE / 2, 400);
				board[y][x] = newType;
				gems[y][x] = newGem;
				game.addChild(newGem);
				moved = true;
			}
		}
	}
	// Double check - ensure no empty spaces remain by creating additional gems if needed
	for (var x = 0; x < BOARD_SIZE; x++) {
		for (var y = 0; y < BOARD_SIZE; y++) {
			if (!gems[y][x] || board[y][x] === -1) {
				var newType = Math.floor(Math.random() * 8);
				var newGem = new Gem(newType);
				newGem.setGridPosition(x, y);
				board[y][x] = newType;
				gems[y][x] = newGem;
				game.addChild(newGem);
				moved = true;
			}
		}
	}
	if (moved) {
		LK.setTimeout(function () {
			isProcessingMatches = false;
			checkForMatches(); // Check for cascade matches
		}, 450);
	} else {
		isProcessingMatches = false;
	}
}
game.down = function (x, y, obj) {
	if (currentGameState === GAME_STATE_HOME) {
		// Check if play button was clicked using coordinate bounds
		if (playButton) {
			var buttonLeft = playButton.x - playButton.width * playButton.scaleX / 2;
			var buttonRight = playButton.x + playButton.width * playButton.scaleX / 2;
			var buttonTop = playButton.y - playButton.height * playButton.scaleY / 2;
			var buttonBottom = playButton.y + playButton.height * playButton.scaleY / 2;
			if (x >= buttonLeft && x <= buttonRight && y >= buttonTop && y <= buttonBottom) {
				// Add click effect to play button
				tween(playButton, {
					scaleX: 0.95,
					scaleY: 0.95
				}, {
					duration: 100,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						tween(playButton, {
							scaleX: 1.0,
							scaleY: 1.0
						}, {
							duration: 100,
							easing: tween.easeOut,
							onFinish: function onFinish() {
								if (volumeEnabled) LK.getSound('button_click').play();
								startGame();
							}
						});
					}
				});
			}
			// Check if text input field was clicked
			if (textInputField) {
				var fieldLeft = textInputField.x - textInputField.width / 2;
				var fieldRight = textInputField.x + textInputField.width / 2;
				var fieldTop = textInputField.y - textInputField.height / 2;
				var fieldBottom = textInputField.y + textInputField.height / 2;
				if (x >= fieldLeft && x <= fieldRight && y >= fieldTop && y <= fieldBottom) {
					// Show custom keyboard
					if (volumeEnabled) LK.getSound('button_click').play();
					// Add visual feedback
					tween(textInputField, {
						scaleX: 0.95,
						scaleY: 0.95
					}, {
						duration: 100,
						easing: tween.easeOut,
						onFinish: function onFinish() {
							tween(textInputField, {
								scaleX: 1.0,
								scaleY: 1.0
							}, {
								duration: 100,
								easing: tween.easeOut,
								onFinish: function onFinish() {
									createCustomKeyboard();
								}
							});
						}
					});
					return;
				}
				// Handle keyboard clicks
				if (keyboardVisible && keyboardContainer) {
					for (var i = 0; i < keyboardKeys.length; i++) {
						var keyData = keyboardKeys[i];
						var keyLeft = keyData.x - keyData.width / 2;
						var keyRight = keyData.x + keyData.width / 2;
						var keyTop = keyData.y - keyData.height / 2;
						var keyBottom = keyData.y + keyData.height / 2;
						if (x >= keyLeft && x <= keyRight && y >= keyTop && y <= keyBottom) {
							// Key pressed - add visual feedback
							if (volumeEnabled) LK.getSound('button_click').play();
							var originalKey = keyData.key;
							tween(originalKey, {
								scaleX: 0.9,
								scaleY: 0.9
							}, {
								duration: 100,
								easing: tween.easeOut,
								onFinish: function onFinish() {
									tween(originalKey, {
										scaleX: 1.0,
										scaleY: 1.0
									}, {
										duration: 100,
										easing: tween.easeOut
									});
								}
							});
							handleKeyboardInput(keyData.letter);
							return;
						}
					}
				}
			}
		}
		return;
	}
	if (currentGameState === GAME_STATE_PAUSED) {
		// Handle pause menu clicks
		if (resumeButton) {
			var buttonLeft = resumeButton.x - resumeButton.width / 2;
			var buttonRight = resumeButton.x + resumeButton.width / 2;
			var buttonTop = resumeButton.y - resumeButton.height / 2;
			var buttonBottom = resumeButton.y + resumeButton.height / 2;
			if (x >= buttonLeft && x <= buttonRight && y >= buttonTop && y <= buttonBottom) {
				// Resume game
				if (volumeEnabled) LK.getSound('button_click').play();
				currentGameState = GAME_STATE_PLAYING;
				pauseMenuContainer.destroy();
				pauseMenuContainer = null;
				return;
			}
		}
		if (volumeButton) {
			var buttonLeft = volumeButton.x - volumeButton.width / 2;
			var buttonRight = volumeButton.x + volumeButton.width / 2;
			var buttonTop = volumeButton.y - volumeButton.height / 2;
			var buttonBottom = volumeButton.y + volumeButton.height / 2;
			if (x >= buttonLeft && x <= buttonRight && y >= buttonTop && y <= buttonBottom) {
				// Toggle volume
				if (volumeEnabled) LK.getSound('button_click').play();
				volumeEnabled = !volumeEnabled;
				storage.volumeEnabled = volumeEnabled;
				pauseMenuContainer.volumeText.setText(volumeEnabled ? 'VOLUME: ON' : 'VOLUME: OFF');
				return;
			}
		}
		if (exitButton) {
			var buttonLeft = exitButton.x - exitButton.width / 2;
			var buttonRight = exitButton.x + exitButton.width / 2;
			var buttonTop = exitButton.y - exitButton.height / 2;
			var buttonBottom = exitButton.y + exitButton.height / 2;
			if (x >= buttonLeft && x <= buttonRight && y >= buttonTop && y <= buttonBottom) {
				// Exit to home screen
				if (volumeEnabled) LK.getSound('button_click').play();
				currentGameState = GAME_STATE_HOME;
				// Clear all game elements
				game.removeChildren();
				// Reset UI elements
				LK.gui.top.removeChildren();
				scoreTxt = null;
				targetTxt = null;
				messageTxt = null;
				movesTxt = null;
				pauseButton = null;
				pauseMenuContainer = null;
				// Reset game variables
				board = [];
				gems = [];
				selectedGem = null;
				isProcessingMatches = false;
				isDragging = false;
				score = 0;
				// Show home screen
				createHomeScreen();
				return;
			}
		}
		return;
	}
	if (currentGameState !== GAME_STATE_PLAYING || isProcessingMatches) return;
	// Check if pause button was clicked
	if (pauseButton) {
		var buttonLeft = pauseButton.x - pauseButton.width / 2;
		var buttonRight = pauseButton.x + pauseButton.width / 2;
		var buttonTop = pauseButton.y - pauseButton.height / 2;
		var buttonBottom = pauseButton.y + pauseButton.height / 2;
		if (x >= buttonLeft && x <= buttonRight && y >= buttonTop && y <= buttonBottom) {
			// Add click effect to pause button
			tween(pauseButton, {
				scaleX: 0.9,
				scaleY: 0.9
			}, {
				duration: 100,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(pauseButton, {
						scaleX: 1.0,
						scaleY: 1.0
					}, {
						duration: 100,
						easing: tween.easeOut,
						onFinish: function onFinish() {
							// Show pause menu
							if (volumeEnabled) LK.getSound('button_click').play();
							currentGameState = GAME_STATE_PAUSED;
							createPauseMenu();
						}
					});
				}
			});
			return;
		}
	}
	selectedGem = getGemAt(x, y);
	if (selectedGem) {
		if (volumeEnabled) {
			var selectSound = LK.getSound('select');
			if (selectSound) selectSound.play();
		}
		isDragging = true;
		dragStartX = x;
		dragStartY = y;
		// Fun rainbow flash and bigger bounce effect for kids
		var rainbowColors = [0xFF69B4, 0x00BFFF, 0x32CD32, 0xFFD700, 0xFF6347, 0x9370DB];
		var randomColor = rainbowColors[Math.floor(Math.random() * rainbowColors.length)];
		LK.effects.flashObject(selectedGem, randomColor, 300);
		// Store reference to selected gem for use in callbacks
		var gemToAnimate = selectedGem;
		// Check if gem exists and has valid properties before starting tween, and prevent multiple scale animations
		if (gemToAnimate && gemToAnimate.scaleX !== undefined && gemToAnimate.scaleY !== undefined && !gemToAnimate.isScaling) {
			// Stop any existing scale tweens on this gem
			tween.stop(gemToAnimate, {
				scaleX: true,
				scaleY: true
			});
			// Mark gem as scaling to prevent multiple simultaneous animations
			gemToAnimate.isScaling = true;
			// Store original scale values
			var originalScaleX = CELL_SIZE / 256;
			var originalScaleY = CELL_SIZE / 256;
			tween(gemToAnimate, {
				scaleX: originalScaleX * 1.4,
				// Bigger bounce for kids
				scaleY: originalScaleY * 1.4
			}, {
				duration: 150,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					// Check if gem still exists and has valid properties before animating back
					if (gemToAnimate && gemToAnimate.scaleX !== undefined && gemToAnimate.scaleY !== undefined) {
						tween(gemToAnimate, {
							scaleX: originalScaleX,
							scaleY: originalScaleY
						}, {
							duration: 150,
							easing: tween.easeIn,
							onFinish: function onFinish() {
								// Reset scaling flag when animation is complete
								if (gemToAnimate) {
									gemToAnimate.isScaling = false;
								}
							}
						});
					} else {
						// Reset scaling flag even if gem no longer exists
						if (gemToAnimate) {
							gemToAnimate.isScaling = false;
						}
					}
				}
			});
		}
	}
};
game.move = function (x, y, obj) {
	if (currentGameState !== GAME_STATE_PLAYING || !isDragging || !selectedGem || isProcessingMatches) return;
	var deltaX = x - dragStartX;
	var deltaY = y - dragStartY;
	var threshold = CELL_SIZE / 2;
	if (Math.abs(deltaX) > threshold || Math.abs(deltaY) > threshold) {
		var targetGem = null;
		if (Math.abs(deltaX) > Math.abs(deltaY)) {
			// Horizontal swipe
			if (deltaX > 0 && selectedGem.gridX < BOARD_SIZE - 1) {
				targetGem = gems[selectedGem.gridY][selectedGem.gridX + 1];
			} else if (deltaX < 0 && selectedGem.gridX > 0) {
				targetGem = gems[selectedGem.gridY][selectedGem.gridX - 1];
			}
		} else {
			// Vertical swipe
			if (deltaY > 0 && selectedGem.gridY < BOARD_SIZE - 1) {
				targetGem = gems[selectedGem.gridY + 1][selectedGem.gridX];
			} else if (deltaY < 0 && selectedGem.gridY > 0) {
				targetGem = gems[selectedGem.gridY - 1][selectedGem.gridX];
			}
		}
		if (targetGem) {
			swapGems(selectedGem, targetGem);
		}
		isDragging = false;
		selectedGem = null;
	}
};
game.up = function (x, y, obj) {
	if (currentGameState !== GAME_STATE_PLAYING) return;
	isDragging = false;
	selectedGem = null;
};
// Initialize home screen
createHomeScreen();