[Joe Ross]

I haven't used an Xbox controller, nor do I use C++, but here's how I would attack the problem of getting any joystick or controller to work.

First I would make sure the controller is being recognized by the driver station software. It should show up on the setup tab as a joystick. When you press a button on the controller, the controller should change color in the joystick list. If it isn't detected or doesn't detect button presses, the problem is likely with your driver.

Second, I would modify your robot code to print the values of each axis and button. From there, you can see which button and stick on the controller are mapped to what axis and button in the code. From there, it should be very simple to make your code use the appropriate axis and buttons. For example, passing the joystick object to Arcade drive makes some assumptions about axis mappings that may not apply to the xBox controller. You might need to change to one of the other methods that allows you to specify specific axes, or read the appropriate axes yourself and pass them to the arcade drive method that takes numeric inputs.