mm with lrm

Assets/Mirror/Runtime/Transport/LRM/BiDictionary.cs

@@ -0,0 +1,56 @@
+//
+// Source: https://stackoverflow.com/questions/255341/getting-multiple-keys-of-specified-value-of-a-generic-dictionary#255630
+//
+using System;
+using System.Collections.Generic;
+
+namespace LightReflectiveMirror
+{
+    class BiDictionary<TFirst, TSecond>
+    {
+        IDictionary<TFirst, TSecond> firstToSecond = new Dictionary<TFirst, TSecond>();
+        IDictionary<TSecond, TFirst> secondToFirst = new Dictionary<TSecond, TFirst>();
+
+        public void Add(TFirst first, TSecond second)
+        {
+            if (firstToSecond.ContainsKey(first) ||
+                secondToFirst.ContainsKey(second))
+            {
+                throw new ArgumentException("Duplicate first or second");
+            }
+            firstToSecond.Add(first, second);
+            secondToFirst.Add(second, first);
+        }
+
+        public bool TryGetByFirst(TFirst first, out TSecond second)
+        {
+            return firstToSecond.TryGetValue(first, out second);
+        }
+
+        public void Remove(TFirst first)
+        {
+            secondToFirst.Remove(firstToSecond[first]);
+            firstToSecond.Remove(first);
+        }
+
+        public ICollection<TFirst> GetAllKeys()
+        {
+            return secondToFirst.Values;
+        }
+
+        public bool TryGetBySecond(TSecond second, out TFirst first)
+        {
+            return secondToFirst.TryGetValue(second, out first);
+        }
+
+        public TSecond GetByFirst(TFirst first)
+        {
+            return firstToSecond[first];
+        }
+
+        public TFirst GetBySecond(TSecond second)
+        {
+            return secondToFirst[second];
+        }
+    }
+}