Create GlobalVariables.cs

https://gist.github.com/hasanbayatme/f3ddf56cf261a6b40efc14ecb9881a98

Author: hasanbayatme

Assets/Scripts/Utilities/GlobalVariables.cs

@@ -0,0 +1,65 @@
+using System.Collections.Generic;
+
+/// <summary>
+/// A simple static class to get and set globally accessible variables through a key-value approach.
+/// </summary>
+/// <remarks>
+/// <para>Uses a key-value approach (dictionary) for storing and modifying variables.</para>
+/// <para>It also uses a lock to ensure consistency between the threads.</para>
+/// </remarks>
+public static class GlobalVariables
+{
+
+    private static readonly object lockObject = new object();
+    private static Dictionary<string, object> variablesDictionary = new Dictionary<string, object>();
+
+    /// <summary>
+    /// The underlying key-value storage (dictionary).
+    /// </summary>
+    /// <value>Gets the underlying variables dictionary</value>
+    public static Dictionary<string, object> VariablesDictionary => variablesDictionary;
+
+    /// <summary>
+    /// Retrieves all global variables.
+    /// </summary>
+    /// <returns>The global variables dictionary object.</returns>
+    public static Dictionary<string, object> GetAll()
+    {
+        return variablesDictionary;
+    }
+
+    /// <summary>
+    /// Gets a variable and casts it to the provided type argument.
+    /// </summary>
+    /// <typeparam name="T">The type of the variable</typeparam>
+    /// <param name="key">The variable key</param>
+    /// <returns>The casted variable value</returns>
+    public static T Get<T>(string key)
+    {
+        if (variablesDictionary == null || !variablesDictionary.ContainsKey(key))
+        {
+            return default(T);
+        }
+
+        return (T)variablesDictionary[key];
+    }
+
+    /// <summary>
+    /// Sets the variable, the existing value gets overridden.
+    /// </summary>
+    /// <remarks>It uses a lock under the hood to ensure consistensy between threads</remarks>
+    /// <param name="key">The variable name/key</param>
+    /// <param name="value">The variable value</param>
+    public static void Set(string key, string value)
+    {
+        lock (lockObject)
+        {
+            if (variablesDictionary == null)
+            {
+                variablesDictionary = new Dictionary<string, object>();
+            }
+            variablesDictionary[key] = value;
+        }
+    }
+
+}