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

/**** 
* Classes
****/ 
// Define the MazeWall class
var MazeWall = Container.expand(function () {
	var self = Container.call(this);
});

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

/**** 
* Game Code
****/ 
var isDragging = false;
var dragNode = null;
var distance = 0;
//Declare method for handling move events on game.
function handleMove(x, y, obj) {
	// If the player is being dragged
	if (isDragging && dragNode) {
		// Calculate the direction of the cursor from the player
		var directionX = x - dragNode.x;
		var directionY = y - dragNode.y;
		var directionLength = Math.sqrt(directionX * directionX + directionY * directionY);
		// Normalize the direction
		directionX /= directionLength;
		directionY /= directionLength;
		// Move the player towards the cursor
		dragNode.x += directionX * distance;
		dragNode.y += directionY * distance;
	}
}
// Set its anchor and pivot point to top left (x: 0.0, y: 0.0).
// Retrieve a non-attached LK asset named 'Background1'.
var backgroundNode = LK.getAsset('Background1', {
	anchorX: 0.0,
	anchorY: 0.0,
	scaleX: 2048 / 1000,
	scaleY: 2732 / 1000,
	x: 0,
	y: 0
});
//Manually attach asset to element, rather than using self.attachAsset
game.addChild(backgroundNode);
;
// Retrieve a non-attached LK asset named 'player'.
// Set its anchor and pivot point to top left (x: 0.0, y: 0.0).
// Position it at the bottom right of the screen (x: 2048, y: 2732).
var playerNode = LK.getAsset('player', {
	anchorX: 2.2,
	anchorY: 2.2,
	scaleX: 1.4,
	scaleY: 1.4,
	x: 2048,
	y: 2732
});
// Manually attach asset to element, rather than using self.attachAsset
game.addChild(playerNode);
// Add event listeners to handle player movement
game.down = function (x, y, obj) {
	// Check if the player was clicked
	if (playerNode.getBounds().contains(x, y)) {
		// If so, start dragging the player
		isDragging = true;
		dragNode = playerNode;
		// Calculate the distance between the player and the cursor
		distance = Math.sqrt(Math.pow(x - playerNode.x, 2) + Math.pow(y - playerNode.y, 2));
		// Also call move handler right away to make effect instant.
		handleMove(x, y, obj);
	}
};
;
;
game.update = function () {
	// Check for collision with maze walls
	var mazeWalls = [];
	for (var i = 0; i < game.children.length; i++) {
		if (game.children[i] instanceof MazeWall) {
			mazeWalls.push(game.children[i]);
		}
	}
	for (var i = 0; i < mazeWalls.length; i++) {
		if (playerNode.intersects(mazeWalls[i])) {
			// Stop player movement
			playerNode.vx = 0;
			playerNode.vy = 0;
			break;
		}
	}
	// Update player position
	playerNode.x += playerNode.vx;
	playerNode.y += playerNode.vy;
	// Get the distance between the player and the cursor
	if (game.mouse) {
		var dx = game.mouse.x - playerNode.x;
		var dy = game.mouse.y - playerNode.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		// If the cursor is close to the player, move the player towards the cursor
		if (distance < 100) {
			var directionX = dx / distance;
			var directionY = dy / distance;
			playerNode.x += directionX * 5;
			playerNode.y += directionY * 5;
		}
	}
};
//Mouse or touch up on game object
game.up = function (x, y, obj) {
	// Stop dragging the player
	isDragging = false;
	dragNode = null;
};

===================================================================
--- original.js
+++ change.js
@@ -100,17 +100,19 @@
 	// Update player position
 	playerNode.x += playerNode.vx;
 	playerNode.y += playerNode.vy;
 	// Get the distance between the player and the cursor
-	var dx = game.mouse.x - playerNode.x;
-	var dy = game.mouse.y - playerNode.y;
-	var distance = Math.sqrt(dx * dx + dy * dy);
-	// If the cursor is close to the player, move the player towards the cursor
-	if (distance < 100) {
-		var directionX = dx / distance;
-		var directionY = dy / distance;
-		playerNode.x += directionX * 5;
-		playerNode.y += directionY * 5;
+	if (game.mouse) {
+		var dx = game.mouse.x - playerNode.x;
+		var dy = game.mouse.y - playerNode.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		// If the cursor is close to the player, move the player towards the cursor
+		if (distance < 100) {
+			var directionX = dx / distance;
+			var directionY = dy / distance;
+			playerNode.x += directionX * 5;
+			playerNode.y += directionY * 5;
+		}
 	}
 };
 //Mouse or touch up on game object
 game.up = function (x, y, obj) {