👀 Views: 87 💬 Answers: 1 📅 Created: 2025-07-07

Unity Singleton GameManager C#

I've been struggling with this for a few days now and could really use some help... I am trying to implement a Singleton pattern for my GameManager in Unity 2023, but I'm running into problems when I switch between scenes. The GameManager should continue across scenes, but I’m working with the 'MissingReferenceException' when trying to access it after a scene change. Here’s my code for the GameManager: ```csharp using UnityEngine; public class GameManager : MonoBehaviour { private static GameManager _instance; public static GameManager Instance { get { if (_instance == null) { GameObject go = new GameObject("GameManager"); _instance = go.AddComponent<GameManager>(); DontDestroyOnLoad(go); } return _instance; } } private void Awake() { if (_instance == null) { _instance = this; DontDestroyOnLoad(gameObject); } else { Destroy(gameObject); } } } ``` When I run the game and switch to another scene, I get a 'MissingReferenceException: The object of type 'GameManager' has been destroyed.' I’ve checked that I’m not instantiating multiple GameManager objects in different scenes, but it seems like something is going wrong when I try to access the instance in my other scripts after a scene change. In my other scripts, I simply access the GameManager like this: ```csharp void Start() { GameManager.Instance.DoSomething(); } ``` I also tried logging the instance in the console to track its lifecycle, and it prints correctly before the scene switch but gives the exception when trying to access it afterward. I’m using Unity 2023.1.0f1 and I’ve made sure the GameManager script is attached to a GameObject that is not destroyed on load, so I’m not sure what I’m missing. Can anyone provide insights on how to properly manage a Singleton for a GameManager across different scenes without running into these issues? My development environment is Ubuntu. What's the best practice here? I recently upgraded to C# stable. Thanks in advance!