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

/**** 
* Game Code
****/ 
// Create gameplay background - 4/5 of screen height (top portion)
var gameplayBackground = game.attachAsset('gameplayBg', {
	x: 0,
	y: 0,
	anchorX: 0,
	anchorY: 0
});
// Create carPlayer character on top of gameplayBackground
var carPlayer = gameplayBackground.attachAsset('CarPlayer', {
	x: 1024,
	// Center horizontally
	y: 1800,
	// Position in lower portion of gameplay area
	anchorX: 0.5,
	anchorY: 0.5
});
// Create UI background - 1/5 of screen height (bottom portion)
var uiBackground = game.attachAsset('uiBg', {
	x: 0,
	y: 2186,
	anchorX: 0,
	anchorY: 0
});
// Create joystickBG centered in UI background
var joystickBG = uiBackground.attachAsset('JoystickBG', {
	x: 1024,
	// Center horizontally in UI
	y: 273,
	// Center vertically in UI (546/2 = 273)
	anchorX: 0.5,
	anchorY: 0.5
});
// Create JoystickPoinr centered in joystickBG
var joystickPoint = joystickBG.attachAsset('JoystickPoinr', {
	x: 0,
	// Center horizontally in joystickBG
	y: 0,
	// Center vertically in joystickBG
	anchorX: 0.5,
	anchorY: 0.5
});
// Variables for joystick dragging
var isDraggingJoystick = false;
var joystickRadius = 200; // Half of joystickBG width (400/2)
// Mouse/touch down event for joystick
joystickPoint.down = function (x, y, obj) {
	isDraggingJoystick = true;
};
// Mouse/touch up event for joystick
joystickPoint.up = function (x, y, obj) {
	isDraggingJoystick = false;
	// Reset joystick to center when released
	joystickPoint.x = 0;
	joystickPoint.y = 0;
};
// Game move handler for joystick dragging
game.move = function (x, y, obj) {
	if (isDraggingJoystick) {
		// Create position object from x,y coordinates
		var globalPos = {
			x: x,
			y: y
		};
		// Convert coordinates to joystickBG local space
		var localPos = joystickBG.toLocal(globalPos);
		// Calculate distance from center
		var distance = Math.sqrt(localPos.x * localPos.x + localPos.y * localPos.y);
		// Limit movement to joystickBG radius
		if (distance <= joystickRadius) {
			joystickPoint.x = localPos.x;
			joystickPoint.y = localPos.y;
		} else {
			// Clamp to edge of joystickBG
			var angle = Math.atan2(localPos.y, localPos.x);
			joystickPoint.x = Math.cos(angle) * joystickRadius;
			joystickPoint.y = Math.sin(angle) * joystickRadius;
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -65,10 +65,15 @@
 };
 // Game move handler for joystick dragging
 game.move = function (x, y, obj) {
 	if (isDraggingJoystick) {
+		// Create position object from x,y coordinates
+		var globalPos = {
+			x: x,
+			y: y
+		};
 		// Convert coordinates to joystickBG local space
-		var localPos = joystickBG.toLocal(obj.position);
+		var localPos = joystickBG.toLocal(globalPos);
 		// Calculate distance from center
 		var distance = Math.sqrt(localPos.x * localPos.x + localPos.y * localPos.y);
 		// Limit movement to joystickBG radius
 		if (distance <= joystickRadius) {