testss

Library/PackageCache/com.unity.render-pipelines.core@11.0.0/Runtime/Common/ComponentSingleton.cs

@@ -0,0 +1,45 @@
+namespace UnityEngine.Rendering
+{
+    // Use this class to get a static instance of a component
+    // Mainly used to have a default instance
+
+    /// <summary>
+    /// Singleton of a Component class.
+    /// </summary>
+    /// <typeparam name="TType">Component type.</typeparam>
+    public static class ComponentSingleton<TType>
+        where TType : Component
+    {
+        static TType s_Instance = null;
+        /// <summary>
+        /// Instance of the required component type.
+        /// </summary>
+        public static TType instance
+        {
+            get
+            {
+                if (s_Instance == null)
+                {
+                    GameObject go = new GameObject("Default " + typeof(TType).Name) { hideFlags = HideFlags.HideAndDontSave };
+                    go.SetActive(false);
+                    s_Instance = go.AddComponent<TType>();
+                }
+
+                return s_Instance;
+            }
+        }
+
+        /// <summary>
+        /// Release the component singleton.
+        /// </summary>
+        public static void Release()
+        {
+            if (s_Instance != null)
+            {
+                var go = s_Instance.gameObject;
+                CoreUtils.Destroy(go);
+                s_Instance = null;
+            }
+        }
+    }
+}