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NitroxModel/Helper/LinqExtensions.cs

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+using System;
+using System.Collections.Generic;
+
+namespace NitroxModel.Helper;
+
+public static class LinqExtensions
+{
+    /// <summary>
+    ///     Returns the items until the predicate stops matching, then includes the next non-matching result as well.
+    /// </summary>
+    /// <param name="source">Input enumerable.</param>
+    /// <param name="predicate">Predicate to match against the items in the enumerable.</param>
+    /// <typeparam name="T">Type of items to return.</typeparam>
+    /// <returns></returns>
+    public static IEnumerable<T> TakeUntilInclusive<T>(this IEnumerable<T> source, Func<T, bool> predicate)
+    {
+        foreach (T item in source)
+        {
+            if (predicate(item))
+            {
+                yield return item;
+            }
+            else
+            {
+                // Also self
+                yield return item;
+                yield break;
+            }
+        }
+    }
+}