deltavr multiplayer 2.0

Assets/FishNet/Runtime/Utility/Extension/List.cs

@@ -0,0 +1,24 @@
+using FishNet.Documenting;
+using System.Collections.Generic;
+
+namespace FishNet.Utility.Extension
+{
+    [APIExclude]
+    public static class ListFN
+    {
+
+        /// <summary>
+        /// Adds a value to the list only if the value does not already exist.
+        /// </summary>
+        /// <param name="lst">Collection being added to.</param>
+        /// <param name="value">Value to add.</param>
+        public static void AddUnique<T>(this List<T> lst, T value)
+        {
+            if (!lst.Contains(value))
+                lst.Add(value);
+        }
+
+
+    }
+
+}