Basic fighting system

scripts/CSharp/Common/Util/LinqExtras.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Data.SqlTypes;
+using System.Linq;
+using System.Xml.Schema;
+namespace Babushka.scripts.CSharp.Common.Util;
+
+public static class LinqExtras
+{
+    public static void ForEach<T>(this IEnumerable<T> self, Action<T> action)
+    {
+        foreach (var t in self)
+        {
+            action.Invoke(t);
+        }
+    }
+
+    public static T? Random<T>(this IEnumerable<T> self)
+    {
+        var selfList = self.ToList();
+        if (selfList.Count == 0) return default;
+        if (selfList.Count == 1) return selfList[0];
+        var randomIndex = new Random().Next(0, selfList.Count);
+        return selfList[randomIndex];
+    }
+}