备份CatanBuilding瘦身独立工程

LocalPackages/rtm-sdk-unity-2.7.20/Runtime/Plugins/fpnn/Unity/Singleton.cs

@@ -0,0 +1,46 @@
+#if UNITY_2017_1_OR_NEWER
+
+using UnityEngine;
+
+namespace com.fpnn {
+
+    public class Singleton<T> : MonoBehaviour where T : Singleton<T> {
+
+        public static T Instance {
+            get {
+                if (instance == null) {
+#if UNITY_EDITOR
+                    T[] managers = Object.FindObjectsOfType(typeof(T)) as T[];
+
+                    if (managers.Length != 0) {
+                        if (managers.Length == 1) {
+                            instance = managers[0];
+                            instance.gameObject.name = typeof(T).Name;
+                            return instance;
+                        } else {
+                            Debug.LogError("Class " + typeof(T).Name + " exists multiple times in violation of singleton pattern. Destroying all copies");
+
+                            foreach (T manager in managers) {
+                                Destroy(manager.gameObject);
+                            }
+                        }
+                    }
+#endif
+
+                    var go = new GameObject(typeof(T).Name, typeof(T));
+                    instance = go.GetComponent<T>();
+                    DontDestroyOnLoad(go);
+                }
+
+                return instance;
+            }
+            set {
+                instance = value as T;
+            }
+        }
+
+        private static T instance;
+    }
+}
+
+#endif