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Question by devGuillaume · Jun 06, 2012 at 04:00 PM · monobehavioursingletongenerics

MonoBehaviour pseudo-singleton with C# generics

Hello,

The Singletons with coroutines? question offers a singleton implementation compatible with MonoBehaviour:

 public class EasySingleton {
   private static EasySingleton instance = null;
   public static EasySingleton Instance { get { return instance; } }
 
   void Awake() {
     instance = this;
   }
 }

I'd like to make this class generic to be able to declare a singleton class, something along the lines of:

 public class EasySingleton<T> : MonoBehaviour {
   private static T instance = default(T);
   public static T Instance { get { return instance; } }
 
   void Awake() {
     instance = this;
   }
 }

 public class OnlyOne : EasySingleton<OnlyOne>
 {
 }

But I'm stuck with the fact that 'this' can't be cast to T in the Awake() method. What's the proper way to achieve what I need?

Thank you!

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Answer by Berenger · Jun 06, 2012 at 04:16 PM

http://unifycommunity.com/wiki/index.php?title=Singleton#Generic_Based_Singleton_for_MonoBehaviours

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