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

/**** 
* Classes
****/ 
var BotSelectionScreen = Container.expand(function () {
	var self = Container.call(this);
	// Bot descriptions and icons
	var botData = {
		Martin: {
			description: 'Martin makes many bad moves.',
			icon: 'martinIcon'
		},
		Lina: {
			description: 'Lina has an offensive strategy.',
			icon: 'linaIcon'
		},
		Carl: {
			description: 'Carl tries to stall the game.',
			icon: 'carlIcon'
		},
		Wizard: {
			description: 'Wizard uses magic for great moves.',
			icon: 'wizardIcon'
		},
		King: {
			description: 'King plays optimally but lacks a Queen.',
			icon: 'kingIcon'
		}
	};
	var bots = ['Martin', 'Lina', 'Carl', 'Wizard', 'King'];
	// Assume these assets ('martinIcon', 'linaIcon', etc.) are defined or will be auto-created by the engine.
	// Example sizes used here are 80x80.
	var startY = -350; // Adjusted start Y for more spacing overall
	var spacingY = 180; // Increased vertical spacing between buttons
	// Create title text
	var titleText = new Text2('Select Your Opponent', {
		size: 80,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.y = startY - 100; // Position title above the first button container
	self.addChild(titleText);
	// Store button containers and backgrounds for interaction setup
	var buttonContainers = [];
	var buttonBackgrounds = [];
	// Create bot buttons with icons and descriptions using Containers
	for (var i = 0; i < bots.length; i++) {
		var botName = bots[i];
		var currentBotData = botData[botName];
		// Create a container for each button entry
		var buttonContainer = new Container();
		buttonContainer.x = 0; // Center container horizontally relative to parent (BotSelectionScreen)
		buttonContainer.y = startY + i * spacingY; // Position container vertically
		self.addChild(buttonContainer);
		buttonContainers.push(buttonContainer); // Store the container
		// Get icon asset
		var icon = LK.getAsset(currentBotData.icon, {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 80,
			height: 80
		});
		icon.x = -200; // Position icon significantly to the left within the container
		icon.y = 0; // Center icon vertically within the container
		// Get bot name text asset
		var botButtonText = new Text2(botName.toUpperCase(), {
			size: 60,
			fill: 0xFFFFFF
		});
		botButtonText.anchor.set(0, 0.5); // Anchor text to its left-middle
		botButtonText.x = icon.x + icon.width / 2 + 20; // Position text right of the icon center + padding
		botButtonText.y = -15; // Position text slightly above the vertical center
		// Get description text asset
		var descriptionText = new Text2(currentBotData.description, {
			size: 30,
			fill: 0xCCCCCC
		});
		descriptionText.anchor.set(0, 0.5); // Anchor text to its left-middle
		descriptionText.x = botButtonText.x; // Align description start with bot name start
		descriptionText.y = 15; // Position description below the vertical center
		// Calculate dynamic width/height needed for the background based on content
		var textBlockWidth = Math.max(botButtonText.width, descriptionText.width);
		var contentWidth = icon.width + 20 + textBlockWidth; // Icon width + padding + max text width
		var contentHeight = Math.max(icon.height, botButtonText.height + descriptionText.height + 10); // Max of icon height or combined text height + spacing
		var bgWidth = contentWidth + 80; // Add horizontal padding to content width
		var bgHeight = contentHeight + 40; // Add vertical padding to content height
		// Create background asset
		var bg = LK.getAsset('blackSquare', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: bgWidth,
			height: bgHeight,
			tint: 0x3a3a3a
		});
		bg.alpha = 0.7;
		// Center the background horizontally around the content block
		bg.x = icon.x - icon.width / 2 + contentWidth / 2;
		bg.y = 0; // Center background vertically in the container
		buttonContainer.addChild(bg); // Add background first so text/icon are on top
		buttonBackgrounds.push(bg); // Store background reference for interaction effects
		// Add icon and text elements on top of the background
		buttonContainer.addChild(icon);
		buttonContainer.addChild(botButtonText);
		buttonContainer.addChild(descriptionText);
		// Make the entire container interactive
		buttonContainer.interactive = true;
		buttonContainer.botIndex = i; // Store the bot index on the container for the click handler
	}
	// Create Back button text
	var backButton = new Text2('< BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backButton.anchor.set(0.5, 0.5);
	// Position back button below the last bot container, accounting for increased spacing
	backButton.y = startY + bots.length * spacingY + 60;
	self.addChild(backButton);
	// Create Back button background
	var backBg = LK.getAsset('blackSquare', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: backButton.width + 80,
		height: backButton.height + 40,
		tint: 0x3a3a3a
	});
	backBg.alpha = 0.7;
	backBg.x = backButton.x; // Align background center with text center
	backBg.y = backButton.y; // Align background center with text center
	self.addChild(backBg); // Add background first
	self.addChild(backButton); // Add text on top of background
	// --- Interaction Setup ---
	// Bot button interactions (using stored containers and backgrounds)
	for (var i = 0; i < buttonContainers.length; i++) {
		(function (index) {
			var btnContainer = buttonContainers[index];
			var bg = buttonBackgrounds[index]; // Get the corresponding background
			// Attach down event to the container
			btnContainer.down = function (x, y, obj) {
				// Flash the background alpha on click
				tween(bg, {
					alpha: 1
				}, {
					duration: 100,
					onFinish: function onComplete() {
						// Return alpha to normal after flash
						tween(bg, {
							alpha: 0.7
						}, {
							duration: 100
						});
					}
				});
				// Handle button action: select bot and start game
				game.selectedBot = bots[index]; // Use stored index to get bot name
				game.startGame();
			};
		})(i);
	}
	// Back button interaction
	(function () {
		var btn = backButton; // Reference to the Text2 object
		var bg = backBg; // Reference to the background shape
		btn.interactive = true; // Make the Text2 object interactive
		// Attach down event to the text object
		btn.down = function (x, y, obj) {
			// Flash the background alpha on click
			tween(bg, {
				alpha: 1
			}, {
				duration: 100,
				onFinish: function onComplete() {
					// Return alpha to normal after flash
					tween(bg, {
						alpha: 0.7
					}, {
						duration: 100
					});
				}
			});
			// Handle back button action: show the previous screen
			game.showGameModeScreen();
		};
	})();
	// Update function (can be used for animations later if needed)
	self.update = function () {
		// Optional: Add animations like pulsing if needed
	};
	return self;
});
var ChessPiece = Container.expand(function (type, color) {
	var self = Container.call(this);
	self.type = type;
	self.color = color;
	self.hasMoved = false;
	var pieceId = color + type.charAt(0).toUpperCase() + type.slice(1);
	var pieceGraphics = self.attachAsset(pieceId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var label;
	switch (type) {
		case 'pawn':
			label = '';
			break;
		case 'rook':
			label = 'R';
			break;
		case 'knight':
			label = 'N';
			break;
		case 'bishop':
			label = 'B';
			break;
		case 'queen':
			label = 'Q';
			break;
		case 'king':
			label = 'K';
			break;
	}
	if (label) {
		var text = new Text2(label, {
			size: 40,
			fill: color === 'white' ? "#000000" : "#ffffff"
		});
		text.anchor.set(0.5, 0.5);
		self.addChild(text);
	}
	return self;
});
var ChessSquare = Container.expand(function (row, col, color) {
	var self = Container.call(this);
	self.row = row;
	self.col = col;
	self.color = color;
	self.piece = null;
	var squareGraphics = self.attachAsset(color === 'white' ? 'whiteSquare' : 'blackSquare', {
		anchorX: 0,
		anchorY: 0
	});
	self.highlight = function (type) {
		if (type === 'selected') {
			squareGraphics.tint = 0x829769;
		} else if (type === 'validMove') {
			squareGraphics.tint = 0xcdd26a;
		} else {
			// Reset to original color
			squareGraphics.tint = color === 'white' ? 0xf0d9b5 : 0xb58863;
		}
	};
	self.setPiece = function (piece) {
		if (self.piece) {
			self.removeChild(self.piece);
		}
		self.piece = piece;
		if (piece) {
			self.addChild(piece);
			piece.x = squareGraphics.width / 2;
			piece.y = squareGraphics.height / 2;
		}
	};
	self.down = function (x, y, obj) {
		game.selectSquare(self);
	};
	return self;
});
var CrazyAbility = Container.expand(function () {
	var self = Container.call(this);
	// Available abilities
	self.abilities = [{
		name: 'Freeze',
		description: 'Freezes a white piece for 2 turns'
	}, {
		name: 'Instant Promotion',
		description: 'Promotes a black pawn to a powerful piece'
	}, {
		name: 'Stampede',
		description: 'Removes 3 random pieces from the board'
	}, {
		name: 'Summon',
		description: 'Summons a black rook on an empty square'
	}, {
		name: 'Teleport',
		description: 'Teleports one of your pieces to danger!'
	}, {
		name: 'Goatify',
		description: 'Turns a piece into a goat that moves like a king for 2 turns'
	}, {
		name: 'Trap',
		description: 'Places a bear trap that captures pieces that land on it'
	}];
	// Stores pieces that are frozen
	self.frozenPieces = [];
	// Use a random ability
	self.useRandomAbility = function () {
		var randomIndex = Math.floor(Math.random() * self.abilities.length);
		var ability = self.abilities[randomIndex];
		// Show ability notification
		self.showAbilityNotification(ability.name);
		// Execute ability
		switch (ability.name) {
			case 'Freeze':
				self.freezeRandomPiece();
				break;
			case 'Instant Promotion':
				self.instantPromotion();
				break;
			case 'Stampede':
				self.stampede();
				break;
			case 'Summon':
				self.summonRook();
				break;
			case 'Teleport':
				self.teleport();
				break;
			case 'Goatify':
				self.goatifyPiece();
				break;
			case 'Trap':
				self.placeTrap();
				break;
		}
	};
	// Show notification of ability used
	self.showAbilityNotification = function (abilityName) {
		var notification = new Text2('AI USED: ' + abilityName + '!', {
			size: 50,
			fill: 0xFF0000
		});
		notification.anchor.set(0.5, 0.5);
		notification.x = 2048 / 2;
		notification.y = 2732 / 2 - 300;
		game.addChild(notification);
		// Flash effect
		LK.effects.flashObject(notification, 0xFF0000, 500);
		// Remove after delay
		LK.setTimeout(function () {
			game.removeChild(notification);
		}, 2000);
	};
	// Freeze a random white piece for 2 turns
	self.freezeRandomPiece = function () {
		var whitePieces = [];
		// Find all white pieces
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'white') {
					whitePieces.push({
						square: square,
						row: row,
						col: col
					});
				}
			}
		}
		if (whitePieces.length > 0) {
			// Select random white piece
			var randomIndex = Math.floor(Math.random() * whitePieces.length);
			var targetPiece = whitePieces[randomIndex];
			// Add to frozen list with 2 turns duration
			self.frozenPieces.push({
				row: targetPiece.row,
				col: targetPiece.col,
				turnsLeft: 2
			});
			// Visual effect - tint blue
			targetPiece.square.piece.tint = 0x00AAFF;
		}
	};
	// Turn a random black pawn into a queen, bishop or rook
	self.instantPromotion = function () {
		var blackPawns = [];
		// Find all black pawns
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'black' && square.piece.type === 'pawn') {
					blackPawns.push({
						square: square
					});
				}
			}
		}
		if (blackPawns.length > 0) {
			// Select random black pawn
			var randomIndex = Math.floor(Math.random() * blackPawns.length);
			var targetPawn = blackPawns[randomIndex];
			// Choose random promotion type
			var promotionTypes = ['queen', 'bishop', 'rook'];
			var randomType = promotionTypes[Math.floor(Math.random() * promotionTypes.length)];
			// Promote the pawn
			targetPawn.square.setPiece(new ChessPiece(randomType, 'black'));
			LK.getSound('promotion').play();
		}
	};
	// Remove 3 random pieces from the board
	self.stampede = function () {
		var allPieces = [];
		// Find all pieces, excluding all kings
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.type !== 'king') {
					allPieces.push({
						square: square
					});
				}
			}
		}
		// Remove up to 3 random pieces
		var removeCount = Math.min(3, allPieces.length);
		for (var i = 0; i < removeCount; i++) {
			if (allPieces.length > 0) {
				var randomIndex = Math.floor(Math.random() * allPieces.length);
				var targetPiece = allPieces[randomIndex];
				// Remove piece
				targetPiece.square.setPiece(null);
				// Remove from array
				allPieces.splice(randomIndex, 1);
			}
		}
		LK.getSound('capture').play();
	};
	// Summon a black rook on a random empty square
	self.summonRook = function () {
		var emptySquares = [];
		// Find all empty squares
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (!square.piece) {
					emptySquares.push({
						square: square
					});
				}
			}
		}
		if (emptySquares.length > 0) {
			// Select random empty square
			var randomIndex = Math.floor(Math.random() * emptySquares.length);
			var targetSquare = emptySquares[randomIndex];
			// Add new rook
			targetSquare.square.setPiece(new ChessPiece('rook', 'black'));
		}
	};
	// Decrement frozen piece counters
	self.updateFrozenPieces = function () {
		for (var i = self.frozenPieces.length - 1; i >= 0; i--) {
			self.frozenPieces[i].turnsLeft--;
			// If no turns left, unfreeze the piece
			if (self.frozenPieces[i].turnsLeft <= 0) {
				var row = self.frozenPieces[i].row;
				var col = self.frozenPieces[i].col;
				// Only unfreeze if piece still exists at that position
				if (board[row][col].piece && board[row][col].piece.color === 'white') {
					board[row][col].piece.tint = 0xFFFFFF;
				}
				self.frozenPieces.splice(i, 1);
			}
		}
	};
	// Teleport a white piece to a dangerous position
	self.teleport = function () {
		var whitePieces = [];
		var dangerSquares = [];
		// Find all white pieces (except king)
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'white' && square.piece.type !== 'king') {
					whitePieces.push({
						square: square,
						row: row,
						col: col
					});
				}
			}
		}
		// Find all squares under attack by black pieces
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				// Check if this square is attacked by any black piece
				if (isSquareAttacked(row, col, 'black') && !board[row][col].piece) {
					dangerSquares.push({
						row: row,
						col: col
					});
				}
			}
		}
		// If we have white pieces and danger squares
		if (whitePieces.length > 0 && dangerSquares.length > 0) {
			// Select random white piece
			var randomPieceIndex = Math.floor(Math.random() * whitePieces.length);
			var targetPiece = whitePieces[randomPieceIndex];
			// Select random danger square
			var randomSquareIndex = Math.floor(Math.random() * dangerSquares.length);
			var dangerSquare = dangerSquares[randomSquareIndex];
			// Teleport the piece
			var piece = targetPiece.square.piece;
			targetPiece.square.setPiece(null);
			board[dangerSquare.row][dangerSquare.col].setPiece(piece);
			// Visual effect - flash the teleported piece
			LK.effects.flashObject(board[dangerSquare.row][dangerSquare.col].piece, 0xFF00FF, 500);
		}
	};
	// Stores goatified pieces data
	self.goatifiedPieces = [];
	// Turn a white piece into a goat (moves like king)
	self.goatifyPiece = function () {
		var whitePieces = [];
		// Find all white pieces except the king (king is immune)
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'white' && square.piece.type !== 'king') {
					whitePieces.push({
						square: square,
						row: row,
						col: col,
						type: square.piece.type
					});
				}
			}
		}
		if (whitePieces.length > 0) {
			// Select random white piece
			var randomIndex = Math.floor(Math.random() * whitePieces.length);
			var targetPiece = whitePieces[randomIndex];
			// Add to goatified list with 2 turns duration
			self.goatifiedPieces.push({
				row: targetPiece.row,
				col: targetPiece.col,
				originalType: targetPiece.type,
				turnsLeft: 2
			});
			// Visual effect - tint piece to goat color
			targetPiece.square.piece.tint = 0x88BB33;
			// Show a goat indicator
			var goatText = new Text2("🐐", {
				size: 30,
				fill: 0xFFFFFF
			});
			goatText.anchor.set(0.5, 0.5);
			goatText.x = targetPiece.square.x + SQUARE_SIZE / 2;
			goatText.y = targetPiece.square.y + SQUARE_SIZE / 2 - 30;
			game.addChild(goatText);
			// Remove indicator after a short time
			LK.setTimeout(function () {
				game.removeChild(goatText);
			}, 1500);
		}
	};
	// Array to track trap positions
	self.trapSquares = [];
	// Place a bear trap on a random empty square
	self.placeTrap = function () {
		var emptySquares = [];
		// Find all empty squares
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (!square.piece) {
					emptySquares.push({
						row: row,
						col: col
					});
				}
			}
		}
		if (emptySquares.length > 0) {
			// Select random empty square
			var randomIndex = Math.floor(Math.random() * emptySquares.length);
			var trapSquare = emptySquares[randomIndex];
			// Add trap to the list
			self.trapSquares.push({
				row: trapSquare.row,
				col: trapSquare.col
			});
			// Visual indication of trap
			var trapIndicator = new Text2("⚠️", {
				size: 40,
				fill: 0xFF5500
			});
			trapIndicator.anchor.set(0.5, 0.5);
			trapIndicator.x = board[trapSquare.row][trapSquare.col].x + SQUARE_SIZE / 2;
			trapIndicator.y = board[trapSquare.row][trapSquare.col].y + SQUARE_SIZE / 2;
			game.addChild(trapIndicator);
			board[trapSquare.row][trapSquare.col].trapIndicator = trapIndicator;
		}
	};
	// Update goatified pieces counters
	self.updateGoatifiedPieces = function () {
		for (var i = self.goatifiedPieces.length - 1; i >= 0; i--) {
			self.goatifiedPieces[i].turnsLeft--;
			// If no turns left, restore the piece to its original type
			if (self.goatifiedPieces[i].turnsLeft <= 0) {
				var row = self.goatifiedPieces[i].row;
				var col = self.goatifiedPieces[i].col;
				var originalType = self.goatifiedPieces[i].originalType;
				// Only restore if piece still exists at that position and is white
				if (board[row][col].piece && board[row][col].piece.color === 'white') {
					// Reset tint
					board[row][col].piece.tint = 0xFFFFFF;
				}
				self.goatifiedPieces.splice(i, 1);
			}
		}
	};
	// Check if a piece is goatified
	self.isPieceGoatified = function (row, col) {
		for (var i = 0; i < self.goatifiedPieces.length; i++) {
			if (self.goatifiedPieces[i].row === row && self.goatifiedPieces[i].col === col) {
				return true;
			}
		}
		return false;
	};
	// Check if a square has a trap
	self.hasTrap = function (row, col) {
		for (var i = 0; i < self.trapSquares.length; i++) {
			if (self.trapSquares[i].row === row && self.trapSquares[i].col === col) {
				return true;
			}
		}
		return false;
	};
	// Trigger trap on a square and remove it
	self.triggerTrap = function (row, col) {
		for (var i = 0; i < self.trapSquares.length; i++) {
			if (self.trapSquares[i].row === row && self.trapSquares[i].col === col) {
				// Remove the trap indicator
				if (board[row][col].trapIndicator) {
					game.removeChild(board[row][col].trapIndicator);
					board[row][col].trapIndicator = null;
				}
				// Remove the trap from our list
				self.trapSquares.splice(i, 1);
				return true;
			}
		}
		return false;
	};
	// Check if a piece is frozen
	self.isPieceFrozen = function (row, col) {
		for (var i = 0; i < self.frozenPieces.length; i++) {
			if (self.frozenPieces[i].row === row && self.frozenPieces[i].col === col) {
				return true;
			}
		}
		return false;
	};
	return self;
});
var DailyChallengeScreen = Container.expand(function () {
	var self = Container.call(this);
	// Challenge data (placeholders for now)
	var challengeTypes = [{
		type: 'puzzle',
		title: 'Chess Puzzle',
		description: 'Solve the puzzle to win!\n(e.g., Checkmate in 1)'
	}, {
		type: 'questions',
		title: 'Chess Trivia',
		description: 'Answer 5 questions about chess history and rules.'
	}, {
		type: 'specialGame',
		title: 'Special Rules Game',
		description: 'Play a game against a bot with unique rules!'
	}];
	// Select a random challenge for the "day"
	// Use storage to get and set the daily challenge type and the date it was set.
	var lastChallengeDate = storage.getItem('dailyChallengeDate');
	var today = new Date();
	var todayString = today.getFullYear() + '-' + (today.getMonth() + 1) + '-' + today.getDate();
	var dailyChallenge;
	if (lastChallengeDate === todayString) {
		// If the date is the same, retrieve the previously selected challenge
		var challengeTypeIndex = storage.getItem('dailyChallengeTypeIndex');
		if (challengeTypeIndex !== null) {
			dailyChallenge = challengeTypes[parseInt(challengeTypeIndex)];
		} else {
			// Fallback if somehow the index is not saved
			var randomIndex = Math.floor(Math.random() * challengeTypes.length);
			dailyChallenge = challengeTypes[randomIndex];
			storage.setItem('dailyChallengeTypeIndex', randomIndex);
			storage.setItem('dailyChallengeDate', todayString);
		}
	} else {
		// If the date is different, select a new random challenge
		var randomIndex = Math.floor(Math.random() * challengeTypes.length);
		dailyChallenge = challengeTypes[randomIndex];
		storage.setItem('dailyChallengeTypeIndex', randomIndex);
		storage.setItem('dailyChallengeDate', todayString);
	}
	// --- UI Elements ---
	// Title Text
	var titleText = new Text2('Daily Challenge: ' + dailyChallenge.title, {
		size: 70,
		fill: 0xFFFFFF,
		wordWrap: true,
		// Enable word wrap
		wordWrapWidth: 1800 // Set max width before wrapping
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.y = -350; // Position higher up
	self.addChild(titleText);
	// Description Text
	var descriptionText = new Text2(dailyChallenge.description, {
		size: 45,
		fill: 0xCCCCCC,
		align: 'center',
		// Center align text
		wordWrap: true,
		// Enable word wrap
		wordWrapWidth: 1600 // Set max width before wrapping
	});
	descriptionText.anchor.set(0.5, 0.5);
	descriptionText.y = -150; // Position below title
	self.addChild(descriptionText);
	// Start Challenge Button
	var startButton = new Text2('START CHALLENGE', {
		size: 70,
		fill: 0xFFFFFF
	});
	startButton.anchor.set(0.5, 0.5);
	startButton.y = 100;
	self.addChild(startButton);
	// Back Button
	var backButton = new Text2('< BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backButton.anchor.set(0.5, 0.5);
	backButton.y = 300; // Position further down
	self.addChild(backButton);
	// Add backgrounds for buttons
	var buttons = [startButton, backButton];
	var buttonBackgrounds = [];
	for (var i = 0; i < buttons.length; i++) {
		var btn = buttons[i];
		var bg = LK.getAsset('blackSquare', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: btn.width + 80,
			height: btn.height + 40,
			tint: 0x3a3a3a
		});
		bg.alpha = 0.7;
		bg.x = btn.x;
		bg.y = btn.y;
		buttonBackgrounds.push(bg);
		self.addChild(bg);
		self.addChild(btn); // Re-add button to put it on top
	}
	// --- Interactions ---
	// Start Button Interaction
	(function (index) {
		var btn = buttons[index];
		var bg = buttonBackgrounds[index];
		btn.interactive = true;
		btn.down = function (x, y, obj) {
			// Flash effect
			tween(bg, {
				alpha: 1
			}, {
				duration: 100,
				onFinish: function onComplete() {
					tween(bg, {
						alpha: 0.7
					}, {
						duration: 100
					});
				}
			});
			// Log the selected challenge type and start the corresponding challenge
			console.log("Starting Daily Challenge:", dailyChallenge.type);
			// Remove this screen first
			if (game.dailyChallengeScreen) {
				game.removeChild(game.dailyChallengeScreen);
				game.dailyChallengeScreen = null;
			}
			// Implement actual challenge start logic based on dailyChallenge.type
			if (dailyChallenge.type === 'puzzle') {
				// Start a chess puzzle challenge
				// For now, we'll just show a placeholder message
				var puzzleMsg = new Text2("Chess Puzzle Challenge!\n(Implementation Pending)", {
					size: 50,
					fill: 0xFFFF00,
					align: 'center'
				});
				puzzleMsg.anchor.set(0.5, 0.5);
				puzzleMsg.x = 2048 / 2;
				puzzleMsg.y = 2732 / 2;
				game.addChild(puzzleMsg);
				// Remove message after a delay and go back to mode select
				LK.setTimeout(function () {
					game.removeChild(puzzleMsg);
					game.showGameModeScreen();
				}, 2500);
			} else if (dailyChallenge.type === 'questions') {
				// Start a chess trivia challenge
				// For now, we'll just show a placeholder message
				var questionsMsg = new Text2("Chess Trivia Challenge!\n(Implementation Pending)", {
					size: 50,
					fill: 0xFFFF00,
					align: 'center'
				});
				questionsMsg.anchor.set(0.5, 0.5);
				questionsMsg.x = 2048 / 2;
				questionsMsg.y = 2732 / 2;
				game.addChild(questionsMsg);
				// Remove message after a delay and go back to mode select
				LK.setTimeout(function () {
					game.removeChild(questionsMsg);
					game.showGameModeScreen();
				}, 2500);
			} else if (dailyChallenge.type === 'specialGame') {
				// Start a special rules game challenge
				// This will essentially start a game with modified rules, we'll need to implement this later
				// For now, we'll just show a placeholder message
				var specialGameMsg = new Text2("Special Rules Game!\n(Implementation Pending)", {
					size: 50,
					fill: 0xFFFF00,
					align: 'center'
				});
				specialGameMsg.anchor.set(0.5, 0.5);
				specialGameMsg.x = 2048 / 2;
				specialGameMsg.y = 2732 / 2;
				game.addChild(specialGameMsg);
				// Remove message after a delay and go back to mode select
				LK.setTimeout(function () {
					game.removeChild(specialGameMsg);
					game.showGameModeScreen();
				}, 2500);
			}
		};
	})(0); // Index 0 is the start button
	// Back Button Interaction
	(function (index) {
		var btn = buttons[index];
		var bg = buttonBackgrounds[index];
		btn.interactive = true;
		btn.down = function (x, y, obj) {
			// Flash effect
			tween(bg, {
				alpha: 1
			}, {
				duration: 100,
				onFinish: function onComplete() {
					tween(bg, {
						alpha: 0.7
					}, {
						duration: 100
					});
				}
			});
			// Go back to the game mode selection screen
			game.showGameModeScreen();
		};
	})(1); // Index 1 is the back button
	self.update = function () {
		// Optional: Add animations if needed
	};
	return self;
});
var GameModeScreen = Container.expand(function () {
	var self = Container.call(this);
	// Create title text
	var titleText = new Text2('Select Game Mode', {
		size: 80,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.y = -250;
	self.addChild(titleText);
	// Create mode buttons
	var classicButton = new Text2('CLASSIC', {
		size: 80,
		fill: 0xFFFFFF
	});
	classicButton.anchor.set(0.5, 0.5);
	classicButton.y = -150;
	self.addChild(classicButton);
	var crazyButton = new Text2('CRAZY MODE', {
		size: 80,
		fill: 0xFFFFFF
	});
	crazyButton.anchor.set(0.5, 0.5);
	crazyButton.y = 0;
	self.addChild(crazyButton);
	var dailyChallengeButton = new Text2('DAILY CHALLENGE', {
		size: 80,
		fill: 0xFFFFFF
	});
	dailyChallengeButton.anchor.set(0.5, 0.5);
	dailyChallengeButton.y = 150;
	self.addChild(dailyChallengeButton);
	var backButton = new Text2('< BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backButton.anchor.set(0.5, 0.5);
	backButton.y = 350;
	self.addChild(backButton);
	// Add highlighting for buttons
	var buttons = [classicButton, crazyButton, dailyChallengeButton, backButton];
	var buttonBackgrounds = [];
	// Create button backgrounds
	for (var i = 0; i < buttons.length; i++) {
		var btn = buttons[i];
		var bg = LK.getAsset('blackSquare', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: btn.width + 80,
			height: btn.height + 40,
			tint: 0x3a3a3a
		});
		bg.alpha = 0.7;
		bg.x = btn.x;
		bg.y = btn.y;
		buttonBackgrounds.push(bg);
		self.addChild(bg);
		self.addChild(btn); // Re-add button to put it on top
	}
	// Add button hover effects
	for (var i = 0; i < buttons.length; i++) {
		(function (index) {
			var btn = buttons[index];
			var bg = buttonBackgrounds[index];
			btn.interactive = true;
			btn.down = function (x, y, obj) {
				// Flash button when clicked
				tween(bg, {
					alpha: 1
				}, {
					duration: 100,
					onFinish: function onComplete() {
						tween(bg, {
							alpha: 0.7
						}, {
							duration: 100
						});
					}
				});
				// Handle button action
				if (index === 0) {
					// Classic mode
					game.gameMode = 'classic';
					game.showBotSelectionScreen(); // Go to bot selection
				} else if (index === 1) {
					// Crazy mode
					game.gameMode = 'crazy';
					game.showBotSelectionScreen(); // Go to bot selection
				} else if (index === 2) {
					// Daily Challenge mode
					game.gameMode = 'dailyChallenge';
					game.showDailyChallengeScreen(); // Show the dedicated screen
				} else if (index === 3) {
					// Back button
					game.showTitleScreen();
				}
			};
		})(i);
	}
	// Pulse animation for the first button
	var pulseScale = 1;
	var increasing = true;
	self.update = function () {
		// Pulse effect for the Classic button
		if (increasing) {
			pulseScale += 0.002;
			if (pulseScale >= 1.05) {
				increasing = false;
			}
		} else {
			pulseScale -= 0.002;
			if (pulseScale <= 0.95) {
				increasing = true;
			}
		}
		classicButton.scale.set(pulseScale);
		buttonBackgrounds[0].scale.set(pulseScale);
	};
	return self;
});
var TitleScreen = Container.expand(function () {
	var self = Container.call(this);
	// Create title text
	var titleText = new Text2('Crazy Chess', {
		size: 120,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	self.addChild(titleText);
	// Create start button
	var startButton = new Text2('TAP TO START', {
		size: 90,
		fill: 0xFFFFFF
	});
	startButton.anchor.set(0.5, 0.5);
	startButton.y = 250;
	self.addChild(startButton);
	// Add pulsing animation to the start button
	var pulseScale = 1;
	var increasing = true;
	self.update = function () {
		// Pulse effect for start button
		if (increasing) {
			pulseScale += 0.003;
			if (pulseScale >= 1.1) {
				increasing = false;
			}
		} else {
			pulseScale -= 0.003;
			if (pulseScale <= 0.9) {
				increasing = true;
			}
		}
		startButton.scale.set(pulseScale);
	};
	// Handle tap anywhere to start
	self.down = function () {
		game.showGameModeScreen();
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	// No title, no description
	// Always backgroundColor is black
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Game constants
var BOARD_SIZE = 8;
var SQUARE_SIZE = 100;
var BOARD_OFFSET_X = (2048 - BOARD_SIZE * SQUARE_SIZE) / 2;
var BOARD_OFFSET_Y = (2732 - BOARD_SIZE * SQUARE_SIZE) / 2;
// Game state variables
var board = [];
var selectedSquare = null;
var validMoves = [];
var currentPlayer = 'white';
var gameState = 'title'; // 'title', 'modeSelect', 'botSelect', 'playing', 'check', 'checkmate', 'stalemate', 'dailyChallenge'
var aiThinking = false;
var titleScreen = null;
var gameModeScreen = null;
var botSelectionScreen = null; // Add variable for the bot selection screen
var dailyChallengeScreen = null; // Add variable for the daily challenge screen
var selectedBot = ''; // Add variable to store the selected bot
// gameMode is now set on the game object, not as a separate variable
var crazyAbilities = new CrazyAbility();
var crazyAbilityChance = 0.4; // 40% chance of AI using ability after a move
// Variables for draw conditions
var movesSinceCaptureOrPawn = 0; // For 50-move rule
var lastMove = null; // To track piece captures and pawn moves
// Initialize the chess board
function initializeBoard() {
	board = [];
	// Create the 8x8 chess board
	for (var row = 0; row < BOARD_SIZE; row++) {
		board[row] = [];
		for (var col = 0; col < BOARD_SIZE; col++) {
			var squareColor = (row + col) % 2 === 0 ? 'white' : 'black';
			var square = new ChessSquare(row, col, squareColor);
			square.x = BOARD_OFFSET_X + col * SQUARE_SIZE;
			square.y = BOARD_OFFSET_Y + row * SQUARE_SIZE;
			board[row][col] = square;
			game.addChild(square);
		}
	}
	// Place the pieces on the board
	placePieces();
}
// Place all chess pieces in their starting positions
function placePieces() {
	// Place pawns
	for (var col = 0; col < BOARD_SIZE; col++) {
		board[1][col].setPiece(new ChessPiece('pawn', 'black'));
		board[6][col].setPiece(new ChessPiece('pawn', 'white'));
	}
	// Place rooks
	board[0][0].setPiece(new ChessPiece('rook', 'black'));
	board[0][7].setPiece(new ChessPiece('rook', 'black'));
	board[7][0].setPiece(new ChessPiece('rook', 'white'));
	board[7][7].setPiece(new ChessPiece('rook', 'white'));
	// Place knights
	board[0][1].setPiece(new ChessPiece('knight', 'black'));
	board[0][6].setPiece(new ChessPiece('knight', 'black'));
	board[7][1].setPiece(new ChessPiece('knight', 'white'));
	board[7][6].setPiece(new ChessPiece('knight', 'white'));
	// Place bishops
	board[0][2].setPiece(new ChessPiece('bishop', 'black'));
	board[0][5].setPiece(new ChessPiece('bishop', 'black'));
	board[7][2].setPiece(new ChessPiece('bishop', 'white'));
	board[7][5].setPiece(new ChessPiece('bishop', 'white'));
	// Place queens
	board[0][3].setPiece(new ChessPiece('queen', 'black'));
	board[7][3].setPiece(new ChessPiece('queen', 'white'));
	// Place kings
	board[0][4].setPiece(new ChessPiece('king', 'black'));
	board[7][4].setPiece(new ChessPiece('king', 'white'));
	// Special rule for 'King' bot: remove the black queen
	if (game.selectedBot === 'King') {
		if (board[0][3].piece && board[0][3].piece.type === 'queen' && board[0][3].piece.color === 'black') {
			board[0][3].setPiece(null);
		}
	}
}
// Select a square on the chess board
game.selectSquare = function (square) {
	// If AI is thinking, don't allow moves
	if (aiThinking || gameState === 'checkmate' || gameState === 'stalemate') {
		return;
	}
	// If the current player is not the human player, don't allow moves
	if (currentPlayer !== 'white') {
		return;
	}
	// Check if piece is frozen (Crazy Mode)
	if (game.gameMode === 'crazy' && square.piece && square.piece.color === 'white' && crazyAbilities.isPieceFrozen(square.row, square.col)) {
		// Show notification that piece is frozen
		var notification = new Text2('This piece is frozen!', {
			size: 40,
			fill: 0x00AAFF
		});
		notification.anchor.set(0.5, 0.5);
		notification.x = 2048 / 2;
		notification.y = 2732 / 2 - 200;
		game.addChild(notification);
		// Remove notification after delay
		LK.setTimeout(function () {
			game.removeChild(notification);
		}, 1500);
		return;
	}
	// Clear previous selections
	clearHighlights();
	// If a square is already selected and the new square is a valid move
	if (selectedSquare && isValidMove(square)) {
		// Move the piece
		movePiece(selectedSquare, square);
		// Reset selection
		selectedSquare = null;
		validMoves = [];
		// Check for check/checkmate
		checkGameState();
		// If game is still playing, switch to AI turn
		if (gameState === 'playing' || gameState === 'check') {
			switchPlayer();
			// Start AI turn
			aiThinking = true;
			LK.setTimeout(makeAIMove, 1000);
		}
	}
	// If clicking on a piece of the current player
	else if (square.piece && square.piece.color === currentPlayer) {
		// Select the square
		selectedSquare = square;
		square.highlight('selected');
		// Calculate valid moves
		validMoves = calculateValidMoves(square);
		// Highlight valid moves
		for (var i = 0; i < validMoves.length; i++) {
			var move = validMoves[i];
			board[move.row][move.col].highlight('validMove');
		}
	}
};
// Check if a move to the target square is valid
function isValidMove(targetSquare) {
	for (var i = 0; i < validMoves.length; i++) {
		var move = validMoves[i];
		if (move.row === targetSquare.row && move.col === targetSquare.col) {
			return true;
		}
	}
	return false;
}
// Move a piece from one square to another
function movePiece(fromSquare, toSquare) {
	var piece = fromSquare.piece;
	// Check for pawn move or capture (for 50-move rule)
	var isPawnMove = piece.type === 'pawn';
	var isCapture = toSquare.piece !== null;
	// Check for trap in crazy mode
	var trapTriggered = false;
	if (game.gameMode === 'crazy' && crazyAbilities.hasTrap(toSquare.row, toSquare.col)) {
		// Trigger trap effect
		trapTriggered = crazyAbilities.triggerTrap(toSquare.row, toSquare.col);
		// If trap is triggered and the piece is white (not king - king is immune)
		if (trapTriggered && piece.color === 'white' && piece.type !== 'king') {
			// Show trap activation message
			var trapMessage = new Text2("TRAP TRIGGERED!", {
				size: 50,
				fill: 0xFF0000
			});
			trapMessage.anchor.set(0.5, 0.5);
			trapMessage.x = 2048 / 2;
			trapMessage.y = 2732 / 2 - 250;
			game.addChild(trapMessage);
			// Remove message after delay
			LK.setTimeout(function () {
				game.removeChild(trapMessage);
			}, 1500);
			// Piece is captured by the trap
			fromSquare.setPiece(null);
			LK.getSound('capture').play();
			// Update move counter for 50-move rule
			movesSinceCaptureOrPawn = 0;
			// Store last move information
			lastMove = {
				from: {
					row: fromSquare.row,
					col: fromSquare.col
				},
				to: {
					row: toSquare.row,
					col: toSquare.col
				},
				piece: piece.type,
				color: piece.color,
				isCapture: true,
				isTrap: true
			};
			return; // Skip the rest of the move logic
		}
	}
	// Handle capture
	if (isCapture) {
		LK.getSound('capture').play();
	} else {
		LK.getSound('move').play();
	}
	// Move the piece
	fromSquare.setPiece(null);
	toSquare.setPiece(piece);
	// Mark piece as moved (for castling and pawn double move)
	piece.hasMoved = true;
	// Handle pawn promotion
	if (piece.type === 'pawn' && (toSquare.row === 0 || toSquare.row === 7)) {
		promotePawn(toSquare);
	}
	// Update move counter for 50-move rule
	if (isPawnMove || isCapture) {
		movesSinceCaptureOrPawn = 0;
	} else {
		movesSinceCaptureOrPawn++;
	}
	// Store last move information
	lastMove = {
		from: {
			row: fromSquare.row,
			col: fromSquare.col
		},
		to: {
			row: toSquare.row,
			col: toSquare.col
		},
		piece: piece.type,
		color: piece.color,
		isCapture: isCapture
	};
}
// Promote a pawn to a queen
function promotePawn(square) {
	var piece = square.piece;
	square.setPiece(new ChessPiece('queen', piece.color));
	LK.getSound('promotion').play();
}
// Clear highlights from all squares
function clearHighlights() {
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			board[row][col].highlight();
		}
	}
}
// Calculate valid moves for a piece
function calculateValidMoves(square) {
	var piece = square.piece;
	var moves = [];
	if (!piece) {
		return moves;
	}
	var row = square.row;
	var col = square.col;
	// Check if piece is goatified (in crazy mode)
	if (game.gameMode === 'crazy' && piece.color === 'white' && crazyAbilities.isPieceGoatified(row, col)) {
		// Goatified pieces move like kings
		calculateKingMoves(row, col, piece, moves);
	} else {
		switch (piece.type) {
			case 'pawn':
				calculatePawnMoves(row, col, piece, moves);
				break;
			case 'rook':
				calculateRookMoves(row, col, piece, moves);
				break;
			case 'knight':
				calculateKnightMoves(row, col, piece, moves);
				break;
			case 'bishop':
				calculateBishopMoves(row, col, piece, moves);
				break;
			case 'queen':
				calculateRookMoves(row, col, piece, moves);
				calculateBishopMoves(row, col, piece, moves);
				break;
			case 'king':
				calculateKingMoves(row, col, piece, moves);
				break;
		}
	}
	// Filter out moves that would put the king in check
	return filterCheckMoves(square, moves);
}
// Calculate valid moves for a pawn
function calculatePawnMoves(row, col, piece, moves) {
	var direction = piece.color === 'white' ? -1 : 1;
	// Move forward one square
	if (isValidSquare(row + direction, col) && !board[row + direction][col].piece) {
		moves.push({
			row: row + direction,
			col: col
		});
		// Move forward two squares from starting position
		if (!piece.hasMoved && isValidSquare(row + 2 * direction, col) && !board[row + 2 * direction][col].piece) {
			moves.push({
				row: row + 2 * direction,
				col: col
			});
		}
	}
	// Captures
	var captureDirections = [{
		row: direction,
		col: -1
	}, {
		row: direction,
		col: 1
	}];
	for (var i = 0; i < captureDirections.length; i++) {
		var dir = captureDirections[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		if (isValidSquare(newRow, newCol) && board[newRow][newCol].piece && board[newRow][newCol].piece.color !== piece.color) {
			moves.push({
				row: newRow,
				col: newCol
			});
		}
	}
}
// Calculate valid moves for a rook
function calculateRookMoves(row, col, piece, moves) {
	var directions = [{
		row: -1,
		col: 0
	},
	// up
	{
		row: 1,
		col: 0
	},
	// down
	{
		row: 0,
		col: -1
	},
	// left
	{
		row: 0,
		col: 1
	} // right
	];
	calculateSlidingMoves(row, col, piece, moves, directions);
}
// Calculate valid moves for a bishop
function calculateBishopMoves(row, col, piece, moves) {
	var directions = [{
		row: -1,
		col: -1
	},
	// up-left
	{
		row: -1,
		col: 1
	},
	// up-right
	{
		row: 1,
		col: -1
	},
	// down-left
	{
		row: 1,
		col: 1
	} // down-right
	];
	calculateSlidingMoves(row, col, piece, moves, directions);
}
// Calculate valid moves for sliding pieces (rook, bishop, queen)
function calculateSlidingMoves(row, col, piece, moves, directions) {
	for (var i = 0; i < directions.length; i++) {
		var dir = directions[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		while (isValidSquare(newRow, newCol)) {
			var targetSquare = board[newRow][newCol];
			if (!targetSquare.piece) {
				// Empty square, can move here
				moves.push({
					row: newRow,
					col: newCol
				});
			} else {
				// Found a piece
				if (targetSquare.piece.color !== piece.color) {
					// Can capture opponent's piece
					moves.push({
						row: newRow,
						col: newCol
					});
				}
				// Can't move past a piece
				break;
			}
			newRow += dir.row;
			newCol += dir.col;
		}
	}
}
// Calculate valid moves for a knight
function calculateKnightMoves(row, col, piece, moves) {
	var knightDirections = [{
		row: -2,
		col: -1
	}, {
		row: -2,
		col: 1
	}, {
		row: -1,
		col: -2
	}, {
		row: -1,
		col: 2
	}, {
		row: 1,
		col: -2
	}, {
		row: 1,
		col: 2
	}, {
		row: 2,
		col: -1
	}, {
		row: 2,
		col: 1
	}];
	for (var i = 0; i < knightDirections.length; i++) {
		var dir = knightDirections[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		if (isValidSquare(newRow, newCol)) {
			var targetSquare = board[newRow][newCol];
			if (!targetSquare.piece || targetSquare.piece.color !== piece.color) {
				moves.push({
					row: newRow,
					col: newCol
				});
			}
		}
	}
}
// Calculate valid moves for a king
function calculateKingMoves(row, col, piece, moves) {
	var kingDirections = [{
		row: -1,
		col: -1
	}, {
		row: -1,
		col: 0
	}, {
		row: -1,
		col: 1
	}, {
		row: 0,
		col: -1
	}, {
		row: 0,
		col: 1
	}, {
		row: 1,
		col: -1
	}, {
		row: 1,
		col: 0
	}, {
		row: 1,
		col: 1
	}];
	for (var i = 0; i < kingDirections.length; i++) {
		var dir = kingDirections[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		if (isValidSquare(newRow, newCol)) {
			var targetSquare = board[newRow][newCol];
			if (!targetSquare.piece || targetSquare.piece.color !== piece.color) {
				moves.push({
					row: newRow,
					col: newCol
				});
			}
		}
	}
	// Castling
	if (!piece.hasMoved) {
		// Kingside castling
		if (canCastle(row, col, 0, 3)) {
			moves.push({
				row: row,
				col: col + 2
			});
		}
		// Queenside castling
		if (canCastle(row, col, 0, -4)) {
			moves.push({
				row: row,
				col: col - 2
			});
		}
	}
}
// Check if castling is possible
function canCastle(row, col, rowOffset, colOffset) {
	var rookCol = colOffset > 0 ? 7 : 0;
	var rookRow = row;
	// Check if there's a rook in the corner
	var rookSquare = board[rookRow][rookCol];
	if (!rookSquare.piece || rookSquare.piece.type !== 'rook' || rookSquare.piece.hasMoved) {
		return false;
	}
	// Check if there are pieces between the king and the rook
	var startCol = Math.min(col, rookCol) + 1;
	var endCol = Math.max(col, rookCol) - 1;
	for (var c = startCol; c <= endCol; c++) {
		if (board[row][c].piece) {
			return false;
		}
	}
	// Check if the king would move through or into check
	var direction = colOffset > 0 ? 1 : -1;
	if (isSquareAttacked(row, col, otherPlayer(currentPlayer)) || isSquareAttacked(row, col + direction, otherPlayer(currentPlayer)) || isSquareAttacked(row, col + 2 * direction, otherPlayer(currentPlayer))) {
		return false;
	}
	return true;
}
// Filter out moves that would put the king in check
function filterCheckMoves(fromSquare, moves) {
	var validMoves = [];
	var piece = fromSquare.piece;
	for (var i = 0; i < moves.length; i++) {
		var move = moves[i];
		// Simulate the move
		var originalPiece = board[move.row][move.col].piece;
		board[move.row][move.col].piece = piece;
		board[fromSquare.row][fromSquare.col].piece = null;
		// Check if the king is in check after the move
		var inCheck = isKingInCheck(piece.color);
		// Undo the move
		board[fromSquare.row][fromSquare.col].piece = piece;
		board[move.row][move.col].piece = originalPiece;
		if (!inCheck) {
			validMoves.push(move);
		}
	}
	return validMoves;
}
// Check if a square is valid (within the board)
function isValidSquare(row, col) {
	return row >= 0 && row < BOARD_SIZE && col >= 0 && col < BOARD_SIZE;
}
// Check if the king is in check
function isKingInCheck(color) {
	// Find the king
	var kingSquare = findKing(color);
	if (!kingSquare) {
		return false;
	}
	// Check if the king is attacked by any opponent's piece
	return isSquareAttacked(kingSquare.row, kingSquare.col, otherPlayer(color));
}
// Check if a square is attacked by any piece of the given color
function isSquareAttacked(row, col, attackerColor) {
	for (var r = 0; r < BOARD_SIZE; r++) {
		for (var c = 0; c < BOARD_SIZE; c++) {
			var square = board[r][c];
			if (square.piece && square.piece.color === attackerColor) {
				var moves = [];
				switch (square.piece.type) {
					case 'pawn':
						// Pawns attack diagonally
						var direction = square.piece.color === 'white' ? -1 : 1;
						var attackDirections = [{
							row: direction,
							col: -1
						}, {
							row: direction,
							col: 1
						}];
						for (var i = 0; i < attackDirections.length; i++) {
							var dir = attackDirections[i];
							var attackRow = r + dir.row;
							var attackCol = c + dir.col;
							if (attackRow === row && attackCol === col) {
								return true;
							}
						}
						break;
					case 'rook':
						calculateRookMoves(r, c, square.piece, moves);
						break;
					case 'knight':
						calculateKnightMoves(r, c, square.piece, moves);
						break;
					case 'bishop':
						calculateBishopMoves(r, c, square.piece, moves);
						break;
					case 'queen':
						calculateRookMoves(r, c, square.piece, moves);
						calculateBishopMoves(r, c, square.piece, moves);
						break;
					case 'king':
						var kingDirections = [{
							row: -1,
							col: -1
						}, {
							row: -1,
							col: 0
						}, {
							row: -1,
							col: 1
						}, {
							row: 0,
							col: -1
						}, {
							row: 0,
							col: 1
						}, {
							row: 1,
							col: -1
						}, {
							row: 1,
							col: 0
						}, {
							row: 1,
							col: 1
						}];
						for (var i = 0; i < kingDirections.length; i++) {
							var dir = kingDirections[i];
							var attackRow = r + dir.row;
							var attackCol = c + dir.col;
							if (attackRow === row && attackCol === col) {
								return true;
							}
						}
						break;
				}
				// Check if the square is in the list of moves
				for (var i = 0; i < moves.length; i++) {
					var move = moves[i];
					if (move.row === row && move.col === col) {
						return true;
					}
				}
			}
		}
	}
	return false;
}
// Find the king of the given color
function findKing(color) {
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece && square.piece.type === 'king' && square.piece.color === color) {
				return {
					row: row,
					col: col
				};
			}
		}
	}
	return null;
}
// Get the other player's color
function otherPlayer(color) {
	return color === 'white' ? 'black' : 'white';
}
// Switch the current player
function switchPlayer() {
	currentPlayer = otherPlayer(currentPlayer);
}
// Check the game state (check, checkmate, stalemate)
function checkGameState() {
	// Check if the current player's king is in check
	var inCheck = isKingInCheck(currentPlayer);
	// Get all possible moves for the current player
	var allMoves = getAllPossibleMoves(currentPlayer);
	// Check for 50-move rule
	if (movesSinceCaptureOrPawn >= 50) {
		gameState = 'stalemate';
		endGame('Draw by 50-move rule!');
		return;
	}
	// Check for insufficient material
	if (hasInsufficientMaterial()) {
		gameState = 'stalemate';
		endGame('Draw by insufficient material!');
		return;
	}
	// Check crazy mode king only frozen situation
	if (game.gameMode === 'crazy' && isKingOnlyFrozen()) {
		gameState = 'stalemate';
		endGame('Draw! King is frozen and alone.');
		return;
	}
	if (inCheck) {
		if (allMoves.length === 0) {
			// Checkmate
			gameState = 'checkmate';
			endGame('Checkmate! ' + otherPlayer(currentPlayer) + ' wins!');
		} else {
			// Check
			gameState = 'check';
			LK.getSound('check').play();
		}
	} else if (allMoves.length === 0) {
		// Stalemate
		gameState = 'stalemate';
		endGame('Draw by stalemate!');
	} else {
		gameState = 'playing';
	}
}
// Get all possible moves for a player
function getAllPossibleMoves(color) {
	var allMoves = [];
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece && square.piece.color === color) {
				var moves = calculateValidMoves(square);
				for (var i = 0; i < moves.length; i++) {
					allMoves.push({
						fromRow: row,
						fromCol: col,
						toRow: moves[i].row,
						toCol: moves[i].col
					});
				}
			}
		}
	}
	return allMoves;
}
// Check for insufficient material (K vs K, K vs KB, K vs KN)
function hasInsufficientMaterial() {
	var pieces = {
		white: {
			count: 0,
			bishop: 0,
			knight: 0
		},
		black: {
			count: 0,
			bishop: 0,
			knight: 0
		}
	};
	// Count all pieces on the board
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece) {
				var piece = square.piece;
				pieces[piece.color].count++;
				if (piece.type === 'bishop') {
					pieces[piece.color].bishop++;
				} else if (piece.type === 'knight') {
					pieces[piece.color].knight++;
				} else if (piece.type !== 'king') {
					// If there's any other piece (pawn, rook, queen), material is sufficient
					if (piece.type === 'pawn' || piece.type === 'rook' || piece.type === 'queen') {
						return false;
					}
				}
			}
		}
	}
	// K vs K
	if (pieces.white.count === 1 && pieces.black.count === 1) {
		return true;
	}
	// K vs KB or K vs KN
	if (pieces.white.count === 1 && pieces.black.count === 2 && (pieces.black.bishop === 1 || pieces.black.knight === 1) || pieces.black.count === 1 && pieces.white.count === 2 && (pieces.white.bishop === 1 || pieces.white.knight === 1)) {
		return true;
	}
	return false;
}
// Check for king-only frozen situation in crazy mode
function isKingOnlyFrozen() {
	if (game.gameMode !== 'crazy') {
		return false;
	}
	var whiteCount = 0;
	var whiteKingRow = -1;
	var whiteKingCol = -1;
	var blackCount = 0;
	// Count pieces and find white king
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece) {
				if (square.piece.color === 'white') {
					whiteCount++;
					if (square.piece.type === 'king') {
						whiteKingRow = row;
						whiteKingCol = col;
					}
				} else {
					blackCount++;
				}
			}
		}
	}
	// If white only has the king and it's frozen
	return whiteCount === 1 && whiteKingRow !== -1 && crazyAbilities.isPieceFrozen(whiteKingRow, whiteKingCol);
}
// End the game
function endGame(message) {
	var gameOverText = new Text2(message, {
		size: 60,
		fill: 0xFFFFFF
	});
	gameOverText.anchor.set(0.5, 0.5);
	gameOverText.x = 2048 / 2;
	gameOverText.y = 200;
	game.addChild(gameOverText);
	// Update score based on winner
	if (gameState === 'checkmate') {
		if (currentPlayer === 'black') {
			// White wins
			LK.setScore(100);
		} else {
			// Black wins (AI wins)
			LK.setScore(0);
		}
	} else {
		// Draw
		LK.setScore(50);
	}
	// Show game over after a short delay
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 3000);
}
// Make an AI move
function makeAIMove() {
	if (gameState === 'checkmate' || gameState === 'stalemate') {
		aiThinking = false;
		return;
	}
	// Get all possible moves for the AI
	var possibleMoves = getAllPossibleMoves('black');
	if (possibleMoves.length === 0) {
		aiThinking = false;
		return;
	}
	// Simple AI: pick a random move
	var randomMove = possibleMoves[Math.floor(Math.random() * possibleMoves.length)];
	// Make the move
	var fromSquare = board[randomMove.fromRow][randomMove.fromCol];
	var toSquare = board[randomMove.toRow][randomMove.toCol];
	// Highlight the selected square
	fromSquare.highlight('selected');
	// Wait a bit before making the move
	LK.setTimeout(function () {
		// Move the piece
		movePiece(fromSquare, toSquare);
		// Clear highlights
		clearHighlights();
		// Use crazy ability in crazy mode
		if (game.gameMode === 'crazy' && Math.random() < crazyAbilityChance) {
			// Use ability after a short delay
			LK.setTimeout(function () {
				crazyAbilities.useRandomAbility();
			}, 500);
		}
		// Check for check/checkmate
		checkGameState();
		// Switch back to player
		switchPlayer();
		// Update frozen and goatified pieces in crazy mode
		if (game.gameMode === 'crazy') {
			crazyAbilities.updateFrozenPieces();
			crazyAbilities.updateGoatifiedPieces();
		}
		// AI turn is over
		aiThinking = false;
	}, 500);
}
// Create score display
var scoreTxt = new Text2('Crazy Chess', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create turn display
var turnText = new Text2('Your Turn', {
	size: 40,
	fill: 0xFFFFFF
});
turnText.anchor.set(0.5, 0);
turnText.y = 70;
LK.gui.top.addChild(turnText);
// Game update function
game.update = function () {
	// If in title screen, update title screen
	if (gameState === 'title' && titleScreen) {
		titleScreen.update();
		return;
	}
	// If in game mode selection screen, update that screen
	if (gameState === 'modeSelect' && gameModeScreen) {
		gameModeScreen.update();
		return;
	}
	// If in bot selection screen, update that screen
	if (gameState === 'botSelect' && botSelectionScreen) {
		botSelectionScreen.update();
		return;
	}
	// If in daily challenge screen, update that screen
	if (gameState === 'dailyChallenge' && dailyChallengeScreen) {
		dailyChallengeScreen.update();
		return; // Stop further updates if in this screen
	}
	// Update turn text
	if (gameState === 'checkmate') {
		if (currentPlayer === 'black') {
			turnText.setText('You Win!');
		} else {
			turnText.setText('AI Wins!');
		}
	} else if (gameState === 'stalemate') {
		turnText.setText('Draw!');
	} else if (aiThinking) {
		turnText.setText('AI Thinking...');
	} else {
		turnText.setText(currentPlayer === 'white' ? 'Your Turn' : 'AI Turn');
	}
};
// Method to show the game mode selection screen
game.showGameModeScreen = function () {
	// Remove title screen if it exists
	if (titleScreen) {
		game.removeChild(titleScreen);
		titleScreen = null;
	}
	// Remove game mode screen if it already exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null; // Clear reference
	}
	// Remove bot selection screen if it exists
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Remove daily challenge screen if it exists
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Create and add game mode screen
	gameModeScreen = new GameModeScreen();
	gameModeScreen.x = 2048 / 2;
	gameModeScreen.y = 2732 / 2;
	game.addChild(gameModeScreen);
	// Update game state
	gameState = 'modeSelect';
};
// Method to show the title screen
// Method to show the bot selection screen
game.showBotSelectionScreen = function () {
	// Remove game mode screen if it exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	// Remove title screen just in case (shouldn't happen in normal flow)
	if (titleScreen) {
		game.removeChild(titleScreen);
		titleScreen = null;
	}
	// Remove existing bot selection screen if present
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Create and add bot selection screen
	botSelectionScreen = new BotSelectionScreen();
	botSelectionScreen.x = 2048 / 2;
	botSelectionScreen.y = 2732 / 2;
	game.addChild(botSelectionScreen);
	// Update game state
	gameState = 'botSelect';
};
// Method to show the daily challenge screen
game.showDailyChallengeScreen = function () {
	// Remove other screens
	if (titleScreen) {
		game.removeChild(titleScreen);
		titleScreen = null;
	}
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Create and add daily challenge screen
	dailyChallengeScreen = new DailyChallengeScreen();
	dailyChallengeScreen.x = 2048 / 2;
	dailyChallengeScreen.y = 2732 / 2;
	game.addChild(dailyChallengeScreen);
	// Update game state
	gameState = 'dailyChallenge';
};
game.showTitleScreen = function () {
	// Remove game mode screen if it exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	// Remove bot selection screen if it exists
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Remove daily challenge screen if it exists
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Create and add title screen
	titleScreen = new TitleScreen();
	titleScreen.x = 2048 / 2;
	titleScreen.y = 2732 / 2;
	game.addChild(titleScreen);
	// Update game state
	gameState = 'title';
};
// Method to start the game from mode selection screen
game.startGame = function () {
	// Remove game mode screen if it exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	// Remove bot selection screen if it exists
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Remove daily challenge screen if it exists (shouldn't be possible to start game from here, but for safety)
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Change state to playing
	gameState = 'playing';
	// Update game title based on selected mode
	scoreTxt.setText('Crazy Chess - ' + game.gameMode.toUpperCase());
	// Initialize the chess board
	initializeBoard();
	// Show the score and turn text
	scoreTxt.visible = true;
	turnText.visible = true;
};
// Show title screen first
titleScreen = new TitleScreen();
titleScreen.x = 2048 / 2;
titleScreen.y = 2732 / 2;
game.addChild(titleScreen);
// Hide score and turn text initially
scoreTxt.visible = false;
turnText.visible = false;
;

===================================================================
--- original.js
+++ change.js
@@ -675,9 +675,32 @@
 		title: 'Special Rules Game',
 		description: 'Play a game against a bot with unique rules!'
 	}];
 	// Select a random challenge for the "day"
-	var dailyChallenge = challengeTypes[Math.floor(Math.random() * challengeTypes.length)];
+	// Use storage to get and set the daily challenge type and the date it was set.
+	var lastChallengeDate = storage.getItem('dailyChallengeDate');
+	var today = new Date();
+	var todayString = today.getFullYear() + '-' + (today.getMonth() + 1) + '-' + today.getDate();
+	var dailyChallenge;
+	if (lastChallengeDate === todayString) {
+		// If the date is the same, retrieve the previously selected challenge
+		var challengeTypeIndex = storage.getItem('dailyChallengeTypeIndex');
+		if (challengeTypeIndex !== null) {
+			dailyChallenge = challengeTypes[parseInt(challengeTypeIndex)];
+		} else {
+			// Fallback if somehow the index is not saved
+			var randomIndex = Math.floor(Math.random() * challengeTypes.length);
+			dailyChallenge = challengeTypes[randomIndex];
+			storage.setItem('dailyChallengeTypeIndex', randomIndex);
+			storage.setItem('dailyChallengeDate', todayString);
+		}
+	} else {
+		// If the date is different, select a new random challenge
+		var randomIndex = Math.floor(Math.random() * challengeTypes.length);
+		dailyChallenge = challengeTypes[randomIndex];
+		storage.setItem('dailyChallengeTypeIndex', randomIndex);
+		storage.setItem('dailyChallengeDate', todayString);
+	}
 	// --- UI Elements ---
 	// Title Text
 	var titleText = new Text2('Daily Challenge: ' + dailyChallenge.title, {
 		size: 70,
@@ -756,31 +779,69 @@
 						duration: 100
 					});
 				}
 			});
-			// Placeholder: Log the selected challenge type and go back
+			// Log the selected challenge type and start the corresponding challenge
 			console.log("Starting Daily Challenge:", dailyChallenge.type);
-			// TODO: Implement actual challenge start logic based on dailyChallenge.type
-			// For now, just show a temporary message and go back to mode select
-			var startMsg = new Text2("Challenge Type: " + dailyChallenge.title + "\n(Implementation Pending)", {
-				size: 50,
-				fill: 0xFFFF00,
-				align: 'center'
-			});
-			startMsg.anchor.set(0.5, 0.5);
-			startMsg.x = 2048 / 2;
-			startMsg.y = 2732 / 2;
-			game.addChild(startMsg);
-			// Remove this screen
+			// Remove this screen first
 			if (game.dailyChallengeScreen) {
 				game.removeChild(game.dailyChallengeScreen);
 				game.dailyChallengeScreen = null;
 			}
-			// Go back after a delay
-			LK.setTimeout(function () {
-				game.removeChild(startMsg);
-				game.showGameModeScreen(); // Go back to mode select
-			}, 2500);
+			// Implement actual challenge start logic based on dailyChallenge.type
+			if (dailyChallenge.type === 'puzzle') {
+				// Start a chess puzzle challenge
+				// For now, we'll just show a placeholder message
+				var puzzleMsg = new Text2("Chess Puzzle Challenge!\n(Implementation Pending)", {
+					size: 50,
+					fill: 0xFFFF00,
+					align: 'center'
+				});
+				puzzleMsg.anchor.set(0.5, 0.5);
+				puzzleMsg.x = 2048 / 2;
+				puzzleMsg.y = 2732 / 2;
+				game.addChild(puzzleMsg);
+				// Remove message after a delay and go back to mode select
+				LK.setTimeout(function () {
+					game.removeChild(puzzleMsg);
+					game.showGameModeScreen();
+				}, 2500);
+			} else if (dailyChallenge.type === 'questions') {
+				// Start a chess trivia challenge
+				// For now, we'll just show a placeholder message
+				var questionsMsg = new Text2("Chess Trivia Challenge!\n(Implementation Pending)", {
+					size: 50,
+					fill: 0xFFFF00,
+					align: 'center'
+				});
+				questionsMsg.anchor.set(0.5, 0.5);
+				questionsMsg.x = 2048 / 2;
+				questionsMsg.y = 2732 / 2;
+				game.addChild(questionsMsg);
+				// Remove message after a delay and go back to mode select
+				LK.setTimeout(function () {
+					game.removeChild(questionsMsg);
+					game.showGameModeScreen();
+				}, 2500);
+			} else if (dailyChallenge.type === 'specialGame') {
+				// Start a special rules game challenge
+				// This will essentially start a game with modified rules, we'll need to implement this later
+				// For now, we'll just show a placeholder message
+				var specialGameMsg = new Text2("Special Rules Game!\n(Implementation Pending)", {
+					size: 50,
+					fill: 0xFFFF00,
+					align: 'center'
+				});
+				specialGameMsg.anchor.set(0.5, 0.5);
+				specialGameMsg.x = 2048 / 2;
+				specialGameMsg.y = 2732 / 2;
+				game.addChild(specialGameMsg);
+				// Remove message after a delay and go back to mode select
+				LK.setTimeout(function () {
+					game.removeChild(specialGameMsg);
+					game.showGameModeScreen();
+				}, 2500);
+			}
 		};
 	})(0); // Index 0 is the start button
 	// Back Button Interaction
 	(function (index) {