How to use

scrolled

method

in

com.badlogic.gdx.InputEventQueue

  @Override
  public void invoke(long window, double scrollX, double scrollY) {
    Lwjgl3Input.this.window.getGraphics().requestRendering();
    if (scrollYRemainder > 0 && scrollY < 0 || scrollYRemainder < 0 && scrollY > 0 ||
      TimeUtils.nanoTime() - lastScrollEventTime > pauseTime ) { 
      // fire a scroll event immediately:
      //  - if the scroll direction changes; 
      //  - if the user did not move the wheel for more than 250ms
      scrollYRemainder = 0;
      int scrollAmount = (int)-Math.signum(scrollY);
      eventQueue.scrolled(scrollAmount);
      lastScrollEventTime = TimeUtils.nanoTime();
    }
    else {
      scrollYRemainder += scrollY;
      while (Math.abs(scrollYRemainder) >= 1) {
        int scrollAmount = (int)-Math.signum(scrollY);
        eventQueue.scrolled(scrollAmount);
        lastScrollEventTime = TimeUtils.nanoTime();
        scrollYRemainder += scrollAmount;
      }
    }
  }
};

  @Override
  public void invoke(long window, double scrollX, double scrollY) {
    Lwjgl3Input.this.window.getGraphics().requestRendering();
    if (scrollYRemainder > 0 && scrollY < 0 || scrollYRemainder < 0 && scrollY > 0 ||
      TimeUtils.nanoTime() - lastScrollEventTime > pauseTime ) { 
      // fire a scroll event immediately:
      //  - if the scroll direction changes; 
      //  - if the user did not move the wheel for more than 250ms
      scrollYRemainder = 0;
      int scrollAmount = (int)-Math.signum(scrollY);
      eventQueue.scrolled(scrollAmount);
      lastScrollEventTime = TimeUtils.nanoTime();
    }
    else {
      scrollYRemainder += scrollY;
      while (Math.abs(scrollYRemainder) >= 1) {
        int scrollAmount = (int)-Math.signum(scrollY);
        eventQueue.scrolled(scrollAmount);
        lastScrollEventTime = TimeUtils.nanoTime();
        scrollYRemainder += scrollAmount;
      }
    }
  }
};

  @Override
  public void invoke(long window, double scrollX, double scrollY) {
    Lwjgl3Input.this.window.getGraphics().requestRendering();
    eventQueue.scrolled((int)-Math.signum(scrollY));
  }
};