default AnalogActionState getAnalogActionState( String actionName, String restrictToInput ){
        throw new UnsupportedOperationException("Action manifests are not supported for the currently used VR API");
    }
Gets the current state of the action (abstract version of a button press).

This is called for analog style actions (most commonly joysticks, but button pressure can also be mapped in analog).

This method is commonly called when it is important which hand the action is found on. For example an "in universe"
joystick that has a hat control might (while you are holding it) bind to the on-controller hat, but only on the hand
holding it

Note that restrictToInput only restricts, it must still be bound to the input you want to receive the input from in
the action manifest default bindings.

{@link #registerActionManifest} must have been called before using this method.

@param actionName The name of the action. E.g. /actions/main/in/openInventory
@param restrictToInput the input to restrict the action to. E.g. /user/hand/right. Or null, which means "any input"
@return the DigitalActionState that has details on if the state has changed, what the state is etc.
jme3-vr/src/main/java/com/jme3/input/vr/VRInputAPI.java