How do I make an unusable and hidden button until certain conditions are met ?

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So I have been trying to get a "requirement" be set up for a button in order for it be usable and to appear, I am using doubles, and have tried to set it up with references and more here is the code, if anyone can help me or answer that would be nice.

also the error I got was about references, to be specific and I quote "NullreferenceException: Object reference not set to an instance of an object prestigebuttonrequisite.Update () (at assets/scripts/prestigebuttonrequisite.cs24) (pointing to my script I believe?)" sorry for not stating this sooner, hopefully this information should help resolve it.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class prestigebuttonrequisite : MonoBehaviour
 {
     // things that had to be set up ahead of time
     public GameObject Prestigescreenbutton;
     public GameObject PrestigeRequisiteobjectsource;
     public double coins;
     public double prestige_coins;
     // references
     public Idle_script_2 Game_manager;
 
     void Start()
     {
         Prestigescreenbutton.SetActive(false);
     }
 
 
     void Update()
     {
         Game_manager.coins = coins;
         Game_manager.prestigecoins = prestige_coins;
         if (Game_manager.coins < 1e+100)
         {
             Prestigescreenbutton.SetActive(true);
         }
 
         if (Game_manager.prestigecoins < 0)
         {
             Prestigescreenbutton.SetActive(true);
         }
     }
 }

Answer 1

Answer by Paum380 · Sep 14, 2021 at 04:53 PM

hello jester, i couldn't identify the problem, but from what i have in mind is, the script is attached to the same gameobject as the button, so you can might change the GameObject reference and just disable the button.

try this:

 //change this reference to...
 public GameObject Prestigescreenbutton;
 
 //this.
 public Button Prestigescreenbutton;

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jester12272012 · Sep 15, 2021 at 09:32 PM 0

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This did not quite fix it. Turns out the problem has something to do with references at the moment.

How do I make an unusable and hidden button until certain conditions are met ?

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