csharp Unity中的单身人士

Posted 2021-05-12

public class UsingSingleton : MonoBehaviour
{
  void Start(){
    // whatever
  }
  
  void Update(){
    // to use the singleton, don't forget the .instance !
    MySingletonInstance.instance.doStuff();
  }
}

public class ControllerManager : Singleton<ControllerManager>
{
  void Start(){
    // will be called the first time it is instanciated.
    // so it behaves like a regular unity object, but will persist
    // accross scenes (as long as one instance is present in each scene)
  }
  
  public void doStuff(){
    // create whatever method you want
  }

}

using UnityEngine;
 using System.Collections;
 
 public class Singleton<Instance> : MonoBehaviour where Instance : Singleton<Instance> {
     public static Instance instance;
     public bool isPersistant;
     
     public virtual void Awake() {
         if(isPersistant) {
             if(!instance) {
                 instance = this as Instance;
             }
             else {
                 DestroyObject(gameObject);
             }
             DontDestroyOnLoad(gameObject);
         }
         else {
             instance = this as Instance;
         }
     }
 }