Quiz.cs

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

public class Quiz : MonoBehaviour
{
    public GameObject bottoniera;
    public GameObject esatta;
    public GameObject sbagliata;

    public string chiave = "1324";

    public string codice = "";

    public float timeout = 0;

    // Start is called before the first frame update
    void Start()
    {
        bottoniera.SetActive(true);
        esatta.SetActive(false);
        sbagliata.SetActive(false);
        codice = "";
        timeout = 0;

    }
    public void clickBottone(string bottone)
    {
        codice += bottone;
        if(codice == chiave)
        {
            click_esatta();
        } else
        {
            timeout = 2;

        }

    }


    public void click_esatta()
    {
        bottoniera.SetActive(false);
        esatta.SetActive(true);
        StartCoroutine(timer());

    }

    public void click_sbagliata()
    {
        bottoniera.SetActive(false);
        sbagliata.SetActive(true);
        StartCoroutine(timer());

    }

    // Update is called once per frame
    void Update()
    {
        if (timeout > 0)
        {
            timeout -= Time.deltaTime;
            if (timeout <= 0)
            {
                timeout = 0;
                codice = "";
            }
        }
    }


    IEnumerator timer()
    {
        yield return new WaitForSeconds(2);
        Start();

    }


}