Add ultimate xr

Assets/UltimateXR/Runtime/Scripts/Extensions/System/Collections/DictionaryExt.cs

@@ -0,0 +1,66 @@
+// --------------------------------------------------------------------------------------------------------------------
+// <copyright file="DictionaryExt.cs" company="VRMADA">
+//   Copyright (c) VRMADA, All rights reserved.
+// </copyright>
+// --------------------------------------------------------------------------------------------------------------------
+using System.Collections.Generic;
+
+namespace UltimateXR.Extensions.System.Collections
+{
+    /// <summary>
+    ///     <see cref="IDictionary{TKey,TValue}" /> and <see cref="Dictionary{TKey,TValue}" /> extensions.
+    /// </summary>
+    public static class DictionaryExt
+    {
+        #region Public Methods
+
+        /// <summary>
+        ///     Adds all elements in another dictionary to the dictionary.
+        /// </summary>
+        /// <typeparam name="TKey">Key type</typeparam>
+        /// <typeparam name="TValue">Value type</typeparam>
+        /// <param name="self">Destination dictionary</param>
+        /// <param name="other">Source dictionary</param>
+        /// <param name="overrideExistingKeys">Determines if duplicated keys must be overriden with other's values</param>
+        public static void AddRange<TKey, TValue>(this IDictionary<TKey, TValue> self, IDictionary<TKey, TValue> other, bool overrideExistingKeys = false)
+        {
+            foreach (var kv in other)
+            {
+                if (!self.ContainsKey(kv.Key))
+                {
+                    self.Add(kv.Key, kv.Value);
+                }
+                else if (overrideExistingKeys)
+                {
+                    self[kv.Key] = kv.Value;
+                }
+            }
+        }
+
+        /// <summary>
+        ///     Gets a given value defined by a key in a dictionary. If the key is not found, it is added and the value is given
+        ///     the default value.
+        /// </summary>
+        /// <param name="self">Dictionary</param>
+        /// <param name="key">Key to look for</param>
+        /// <typeparam name="TKey">Key type</typeparam>
+        /// <typeparam name="TValue">Value type</typeparam>
+        /// <returns>
+        ///     Value in the dictionary. If the key doesn't exist it will be added and the return value will be the default
+        ///     value
+        /// </returns>
+        public static TValue GetOrAddValue<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey key)
+                    where TValue : new()
+        {
+            if (!self.TryGetValue(key, out TValue value))
+            {
+                value = new TValue();
+                self.Add(key, value);
+            }
+
+            return value;
+        }
+
+        #endregion
+    }
+}