I am developing my first 2D game in Unity and I have come across what seems an important question.

How do I handle data between scenes?

There seems to be different answers to this:

• Someone mention using PlayerPrefs, while other people told me this should be used to store other things like screen brightness and so on.

• Someone told me that the best way was to make sure to write everything into a savegame everytime that I changed scenes, and to make sure that when the new scene loads, get the info from the savegame again. This seemed to me wasteful in performance. Was I wrong?

• The other solution, which is the one I have implemented so far is to have a global game object that isn't destroyed between scenes, handling all the data between scenes. So when the game starts, I load a Start Scene where this object is loaded. After this ends, it loads the first real game scene, usually a main menu.

This is my implementation:

using UnityEngine; using UnityEngine.UI; using System.Collections; public class GameController : MonoBehaviour { // Make global public static GameController Instance { get; set; } void Awake () { DontDestroyOnLoad (transform.gameObject); Instance = this; } void Start() { //Load first game scene (probably main menu) Application.LoadLevel(2); } // Data persisted between scenes public int exp = 0; public int armor = 0; public int weapon = 0; //... } 

This object can be handled on my other classes like this:

private GameController gameController = GameController.Instance; 

While this has worked so far, it presents me with one big problem: If I want to load directly a scene, let's say for instance the final level of the game, I can't load it directly, since that scene does not contain this global game object.

Am I handling this problem the wrong way? Are there better practices for this kind of challenge? I would love to hear your opinions, thoughts and suggestions on this issue.

Thanks