Find the 'Number' of the Scene the Player is in to Save it in PlayerPref Unity

Question

I'm working on a 2D Pixel Platformer RPG, I need to develop a save and load mechanism in it. There are several scenes in the game (and will have many more), the question is, how do I save the scene number the player is currently in, so that when he quits and reloads the game, he's in the same scene. How can I implement it in C# Unity. (please be clear as I'm somewhat a beginner).

Answer 1

Ok, so there are a few things you need to do in order to achive this:

First, in the first scene in your build - create an Empty GameObject, name it "SceneManager".

Then, create a new tag "SceneManager" and add it to the "SceneManager" GameObject

Finally, add the "SceneManager" script to the "SceneManager" GameObject:

using System.Collections; 
using UnityEngine; 
using UnityEngine.SceneManagement;
public class SceneManager : MonoBehaviour 
{

    void Awake()
    {
        DontDestroyOnLoad(gameObject);
    }
    public void SaveScene()
    {
        int activeScene = SceneManager.GetActiveScene().buildIndex;
        PlayerPrefs.SetInt("ActiveScene", activeScene);
    }
    public void LoadScene()
    {
        int activeScene = PlayerPrefs.GetInt("ActiveScene");
        SceneManager.LoadScene(activeScene);
    }
}

Then, you can load/save scenes by using this script:

using UnityEngine;
public class UsageScript: MonoBehaviour { 
    private SceneManager SceneManager;
    void Awake ()
    {
        sceneManager = GameObject.FindGameObjectWithTag("SceneManager").GetComponent<SceneManager>();
    }

    void UsageManager()
    {
        sceneManager.SaveScene();

        sceneManager.LoadScene();
    }
}