How to make UI set active when you press tab but if its still active press tab again and the UI will-CodePudding

I'm using Unity 2d right now and I'm making some inventory Ui but I cant seem to figure out how to open and close UI with one key. like in most games when you press escape and it opens a pause screen then if you press it again then it closes it. I'm not sure how I can get what I'm looking for. but I tried it and here is what I have

if(Input.GetKeyDown(KeyCode.Tab)) {
            GameMenu.SetActive(true);
            if(GameMenu.activeSelf && Input.GetKeyDown(KeyCode.Tab)) {
                GameMenu.SetActive(false);
            }
        }

CodePudding user response：

The easiest way is to use a bool variable to store the state of UI, like:

private bool isMenuActive = false;

if (Input.GetKeyDown(KeyCode.Tab))
{
        if (isMenuActive)
        {
            GameMenu.SetActive(false);
            isMenuActive = false;   
        }
        else
        {
            GameMenu.SetActive(true);
            isMenuActive = true;
        }
 }

Or more consice:

private bool isMenuActive = false;

if(Input.GetKeyDown(KeyCode.Tab)) 
{
        isMenuActive = !isMenuActive;
        GameMenu.SetActive(isMenuActive); 
}

Or more consice:

if(Input.GetKeyDown(KeyCode.Tab)) 
{
    GameMenu.SetActive(!GameMenu.activeSelf);
}