call a function from inside OnGUI

Questions & Answers
1

Hi.

I’m codding an App made of entire GUI.
For that i use something like this:

void OnGui () {
   if (menu == "main") {
      // show content of menu
   }
   else if (menu == "options") {
      // show content of options
   }
}

My problem is, i have about 50 menu and my code was getting too long. so every time i want to made something in 2 or 3 menus i need to scroll a lot on my code.
I was thinking on change my code to something like this:

void OnGui () {
   if (menu == "main") {
      MainScript.ShowContent();
   }
   else if (menu == "options") {
      OptionScript.ShowContent();
   }
}

In that case every menu was a separeted script with only the content of that menu, so if i need to change something in 2 or 3 scripts i just select another window on editor.

But i have no idea how to do this and if this is even possible. Can someone please help me with this? Thanks in advance.

Note: Sorry if i wrote something wrong, English is not my usual Language.

2

You can perfectly do this and there is really nothing special about it, you just need to call the other function.

3

Well if you get a real long menu you can store all the methods in a different class and use some arrays:

string[]texts = new string[]{"main", "options"};
Rect[] rects;
Action [] actions;

void Start()
{
   rects = new Rect[texts.Length];
   for(int i = 0; i < rects.Length; i++)
   {
       rects _= new Rect(20 * i, 0, 20,20);_

}
Script s = GetComponent();
actions[0] = s.MethodA;
actions[1] = s.MethodB;
// So on
}

void OnGUI()
{
for(int i = 0; i < texts.Length; i++)
{
if(GUI.Button(rects_, texts*)){_
_actions;
}
}
}*
But best would be to use the new system, where only the methods are necessary, the rest is manual placement._

4

after some hours of tests i came to this:

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class AppController : MonoBehaviour {
	public Main_Screen Main_Screen;				// Script with the main screen
	public Option_Screen Option_Screen;			// Script with the options screen
	public Language_Screen Language_Screen;		// Script with the language options screen
    public string menu = "main";
	
	void OnGUI() {   
		if (menu == "main") {
			Main_Screen.ShowContent();
		}
		else if (menu == "options") {
			Option_Screen.ShowContent();
		}
		else if (menu == "language") {
			Language_Screen.ShowContent();
		}
	}
}

Now on other files i notice i can go on two diferent ways to access another scripts.
Creating a variable for that specific script like this:

public Option_Screen Option_Screen;			// Script with the options screen
public Language_Screen Language_Screen;		// Script with the language options screen

or just creating one for the main script AppController and call the variables and functions like this:

public AppController AppController ;			// main script
if (AppController.Option_Screen.somevariable == "somevalue") {
    // do something
}

Now the question is, witch way is better?

Sorry again if i wrote something wrong and if those question are to damm borrung and noob.