If using a conditional-situational menu, such as a pop-up, must wait till next OnGUI?

Questions & Answers
1

If you are using a conditional-situational menu... such as a pop-up dialog ("Are you sure you want to quit", etc) that occurs after you click on another gui button ("Quit"), is the only way to create both the toggle-button gui menu and check the conditional to wait until the next `OnGUI`-call?

In this case, every time you have a dialog like this, you would have to use a global to check for loading the dialog on next onGUI?

2

After clicking the GUI Button "Quit" you could instantiate an empty game object prefab with an attached OnGUI script for the pop-up confirmation. This way you could simply instantiate and destroy the situational code without having it embedded in the overall global call.

3

You could just use boolean vars to toggle what GUI code you want to show, like this:

private var showQuit : boolean = false;

function OnGUI(){

    if (GUI.Button (Rect (10,10, 100, 50), "Quit Game")) {
        showQuit = true;
    }

    if (showQuit == true){
        GUI.Button(Rect ((Screen.width/2), (Screen.height/2), 100, 50), "Are you sure you want to quit?");
    }

}