code: public TouchActions move(int x, int y) {
      if (touchScreen != null) {
        action.addAction(new MoveAction(touchScreen, x, y));
      }
      return this;
    }
docs: Allows the execution of the gesture 'move' on the screen.
  
  @param x The x coordinate relative to the viewport
  @param y The y coordinate relative to the viewport
  @return self