/**** 
* Classes
****/ 
// Board class to represent the game board
var Board = Container.expand(function () {
	var self = Container.call(this);
	self.board = [];
	self.boardWidth = 9;
	self.boardHeight = 9;
	self.candySize = (game.width - (self.boardWidth - 1) * 2) / self.boardWidth;
	self.difficulty = 'easy';
	self.selectedCandy = null;
	self.moves = 0;
	self.time = 0;
	// Initialize the board with candies
	self.initializeBoard = function (difficulty) {
		self.difficulty = difficulty;
		self.moves = difficulty === 'medium' ? 30 : 0;
		self.time = difficulty === 'hard' ? 60 : 0;
		for (var i = 0; i < self.boardWidth; i++) {
			self.board[i] = [];
			for (var j = 0; j < self.boardHeight; j++) {
				self.createCandyAt(i, j);
			}
		}
		// Initial check for matches to prevent starting with matches
		while (self.hasMatches()) {
			self.reshuffleBoard();
		}
	};
	// Create a candy at specific position
	self.createCandyAt = function (i, j) {
		var item;
		if (Math.random() < 0.1) {
			item = new PowerUp();
		} else {
			item = new Candy();
			if (self.difficulty === 'medium' && Math.random() < 0.1) {
				item.locked = true;
			} else if (self.difficulty === 'hard' && Math.random() < 0.2) {
				item.locked = true;
				item.immovable = true;
			}
		}
		item.x = i * (self.candySize + 2) + self.candySize / 2;
		item.y = j * (self.candySize + 2) + self.candySize / 2;
		item.boardX = i;
		item.boardY = j;
		self.board[i][j] = item;
		self.addChild(item);
		return item;
	};
	// Check for matches on the board
	self.checkMatches = function () {
		var matches = [];
		// Check horizontal matches
		for (var j = 0; j < self.boardHeight; j++) {
			var count = 1;
			var type = null;
			for (var i = 0; i < self.boardWidth; i++) {
				var candy = self.board[i][j];
				if (candy && candy.type) {
					if (type === candy.type) {
						count++;
						if (count >= 3) {
							matches.push({
								x: i - 2,
								y: j,
								length: count,
								direction: 'horizontal'
							});
						}
					} else {
						count = 1;
						type = candy.type;
					}
				}
			}
		}
		// Check vertical matches
		for (var i = 0; i < self.boardWidth; i++) {
			var count = 1;
			var type = null;
			for (var j = 0; j < self.boardHeight; j++) {
				var candy = self.board[i][j];
				if (candy && candy.type) {
					if (type === candy.type) {
						count++;
						if (count >= 3) {
							matches.push({
								x: i,
								y: j - 2,
								length: count,
								direction: 'vertical'
							});
						}
					} else {
						count = 1;
						type = candy.type;
					}
				}
			}
		}
		return matches;
	};
	// Check if there are any matches on the board
	self.hasMatches = function () {
		return self.checkMatches().length > 0;
	};
	// Reshuffle the board when no moves are possible
	self.reshuffleBoard = function () {
		for (var i = 0; i < self.boardWidth; i++) {
			for (var j = 0; j < self.boardHeight; j++) {
				if (self.board[i][j]) {
					self.removeChild(self.board[i][j]);
				}
			}
		}
		for (var i = 0; i < self.boardWidth; i++) {
			for (var j = 0; j < self.boardHeight; j++) {
				self.createCandyAt(i, j);
			}
		}
	};
	// Get the candy at a specific position
	self.getCandyAtPosition = function (x, y) {
		var i = Math.floor((x - self.x) / (self.candySize + 2));
		var j = Math.floor((y - self.y) / (self.candySize + 2));
		if (i >= 0 && i < self.boardWidth && j >= 0 && j < self.boardHeight) {
			return self.board[i][j];
		}
		return null;
	};
	// Swap two candies on the board
	self.swapCandies = function (candy1, candy2, checkMatches) {
		// Default checkMatches to true if not specified
		checkMatches = checkMatches !== undefined ? checkMatches : true;
		// Check if either candy is locked or immovable
		if (candy1.locked || candy2.locked || candy1.immovable || candy2.immovable) {
			return false;
		}
		// Check if candies are adjacent
		var dx = Math.abs(candy1.boardX - candy2.boardX);
		var dy = Math.abs(candy1.boardY - candy2.boardY);
		if (dx + dy !== 1) {
			return false;
		}
		// Perform the swap
		var tempX = candy1.x;
		var tempY = candy1.y;
		var tempBX = candy1.boardX;
		var tempBY = candy1.boardY;
		candy1.x = candy2.x;
		candy1.y = candy2.y;
		candy1.boardX = candy2.boardX;
		candy1.boardY = candy2.boardY;
		candy2.x = tempX;
		candy2.y = tempY;
		candy2.boardX = tempBX;
		candy2.boardY = tempBY;
		self.board[candy1.boardX][candy1.boardY] = candy1;
		self.board[candy2.boardX][candy2.boardY] = candy2;
		// Only check for matches if requested
		if (checkMatches && !self.hasMatches()) {
			// Swap back if no matches were created, but don't check for matches again
			self.swapCandies(candy1, candy2, false);
			return false;
		}
		return true;
	};
	return self;
});
// Candy class to represent each candy on the board
var Candy = Container.expand(function () {
	var self = Container.call(this);
	var candyTypes = ['candy1', 'candy2', 'candy3', 'candy4', 'candy5'];
	self.type = candyTypes[Math.floor(Math.random() * candyTypes.length)];
	self.attachAsset(self.type, {
		anchorX: 0.5,
		anchorY: 0.5,
		width: gameBoard.candySize * 0.8,
		height: gameBoard.candySize * 0.8
	});
	self.locked = false;
	self.immovable = false;
	self.pop = function () {
		self.destroy();
	};
	return self;
});
// PowerUp class to represent the power-ups in the game
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpTypes = ['bomb', 'colorChanger', 'lightning', 'megaBomb'];
	self.type = powerUpTypes[Math.floor(Math.random() * powerUpTypes.length)];
	self.attachAsset(self.type, {
		anchorX: 0.5,
		anchorY: 0.5,
		width: gameBoard.candySize,
		height: gameBoard.candySize
	});
	self.use = function () {
		switch (self.type) {
			case 'bomb':
				// Destroy candies in a 3x3 area
				break;
			case 'colorChanger':
				// Change all candies of one color to another
				break;
			case 'lightning':
				// Destroy all candies in a row or column
				break;
			case 'megaBomb':
				// Destroy candies in a 5x5 area
				break;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
var gameBoard = new Board();
game.addChild(gameBoard);
gameBoard.initializeBoard('easy');
// Center the game board
gameBoard.y = (game.height - gameBoard.candySize * gameBoard.boardHeight - 2 * (gameBoard.boardHeight - 1)) / 2;
gameBoard.x = (game.width - gameBoard.candySize * gameBoard.boardWidth - 2 * (gameBoard.boardWidth - 1)) / 2;
// Handle input events
game.down = function (x, y, obj) {
	gameBoard.selectedCandy = gameBoard.getCandyAtPosition(x, y);
	if (gameBoard.selectedCandy instanceof PowerUp) {
		gameBoard.selectedCandy.use();
		gameBoard.selectedCandy = null;
	}
};
game.up = function (x, y, obj) {
	var candyAtMouse = gameBoard.getCandyAtPosition(x, y);
	if (gameBoard.selectedCandy && candyAtMouse && gameBoard.selectedCandy !== candyAtMouse) {
		gameBoard.swapCandies(gameBoard.selectedCandy, candyAtMouse);
	}
	gameBoard.selectedCandy = null;
};
game.move = function (x, y, obj) {
	if (gameBoard.selectedCandy) {
		var candyAtMouse = gameBoard.getCandyAtPosition(x, y);
		if (candyAtMouse && gameBoard.selectedCandy !== candyAtMouse) {
			if (gameBoard.swapCandies(gameBoard.selectedCandy, candyAtMouse)) {
				gameBoard.selectedCandy = null;
			}
		}
	}
};
// Update function called every game tick
game.update = function () {
	var matches = gameBoard.checkMatches();
	if (matches.length > 0) {
		matches.forEach(function (match) {
			for (var i = 0; i < match.length; i++) {
				var x = match.direction === 'horizontal' ? match.x + i : match.x;
				var y = match.direction === 'vertical' ? match.y + i : match.y;
				if (gameBoard.board[x][y] instanceof Candy) {
					gameBoard.board[x][y].pop();
					gameBoard.board[x][y] = null;
				}
			}
		});
	}
	// Update game state based on difficulty
	if (gameBoard.difficulty === 'medium') {
		gameBoard.moves = Math.max(0, gameBoard.moves - 0.016); // Assuming 60 FPS
	} else if (gameBoard.difficulty === 'hard') {
		gameBoard.time = Math.max(0, gameBoard.time - 0.016);
	}
};

===================================================================
--- original.js
+++ change.js
@@ -266,9 +266,9 @@
 		matches.forEach(function (match) {
 			for (var i = 0; i < match.length; i++) {
 				var x = match.direction === 'horizontal' ? match.x + i : match.x;
 				var y = match.direction === 'vertical' ? match.y + i : match.y;
-				if (gameBoard.board[x][y]) {
+				if (gameBoard.board[x][y] instanceof Candy) {
 					gameBoard.board[x][y].pop();
 					gameBoard.board[x][y] = null;
 				}
 			}