ARVRControllerGetJoystickId Method

Returns the ID of the joystick object bound to this. Every controller tracked by the ARVRServer that has buttons and axis will also be registered as a joystick within Godot. This means that all the normal joystick tracking and input mapping will work for buttons and axis found on the AR/VR controllers. This ID is purely offered as information so you can link up the controller with its joystick entry.