I Need Help In Using PlayerPrffs

Unity Engine
,
1

So I Made A Working Level Selector Using A Brackeys Video

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

public class LevelSelector : MonoBehaviour
{
    public LevelFaderScript fader;
    public Button[] levelsButtons;

    void Start()
    {
        int levelReached = PlayerPrefs.GetInt("levelReached", 1);

        for (int i = 0; i < levelsButtons.Length; i++)
        {
            if (i + 1 > levelReached)
            {
                levelsButtons[i].interactable = false;
            }
           
        }       

    }

    public void SelectLevel(int levelIndex)
    {
        fader.FadeToLevel(levelIndex);
    }

}

And I Want In The Game Manager, In The PlayerPrefs, Use This Function: PlayerPrefs.SetInt(“levelReached”, levelReached + 1);
But I Cannot Use The LevelReached variable since it is in another script.
Will it work if I Use static variable, or no?
I just want to increase the levelReached when I Win A Level and pass the other
Somebody help me!

2

Make the variable/field public or use properties (get and set accessors). Then you need to just reference the object somehow in your code, like making a public field where you drag your
another script. Now you can access that data in your current code.

For example,

Public field:

public int levelReached;

Get/Set accessors:

// Your private variable
private int _levelReached;

// public access to it
public int LevelReached
{
    get { return _levelReached; }
    set { _levelReached = value; }
}

How to reference another location:
you need to fill this field either in code or in Inspector by dragging and object in that contains the script GameManager:

GameManager gameManager;

When you need to access that level value, you can:

// Print it out to Debug log
Debug.Log("LevelReached: " + gameManager.LevelReached);

// Increment the level counter by one
gameManager.LevelReached++;
1 Like
3

The problem is that The LevelSelector Script And The GameManager Are In DifferentScene
The Level Selector Is In The LevelSelector Scene And The Game manager is in the level01
so i couldn’t use a public variable, maybe a static? but i want to save the progress
what should i do then

4

you already answered your own question.
make it static.
I mean get rip of MonoBehaviour

public static class GameDB
    {
        public static int levelReached
        {
            get => PlayerPrefs.GetInt("levelReached", 0);
            set => PlayerPrefs.SetInt("levelReached", value);
        }
    }

however put things in static as global, was not a good practice.
use it wisely.

OR~

if you have any requirement depend on MonoBehaviour.
try to implement the singleton design pattern.
https://wiki.unity3d.com/index.php/Singleton
and make it [DontDestroyOnLoad](https://docs.unity3d.com/ScriptReference/Object.DontDestroyOnLoad.html)