From 493e39860dd5648fc0886b3e59772938158eedab Mon Sep 17 00:00:00 2001
From: Redwarx008 <50837890+Redwarx008@users.noreply.github.com>
Date: Sun, 26 Mar 2023 21:14:08 +0800
Subject: C#: Fix Array.AddRange index out of bounds

Fix Array.AddRange index out of bounds

(cherry picked from commit eb1fb254a649efe128a3d993b7bd31486e9356e1)
---
 modules/mono/glue/GodotSharp/GodotSharp/Core/Array.cs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/Array.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/Array.cs
index 8598c32760..5163ea5113 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/Array.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/Array.cs
@@ -554,6 +554,7 @@ namespace Godot.Collections
             // instead of growing it as we add items.
             if (collection.TryGetNonEnumeratedCount(out int count))
             {
+                int oldCount = Count;
                 Resize(Count + count);
 
                 using var enumerator = collection.GetEnumerator();
@@ -561,7 +562,7 @@ namespace Godot.Collections
                 for (int i = 0; i < count; i++)
                 {
                     enumerator.MoveNext();
-                    this[count + i] = Variant.From(enumerator.Current);
+                    this[oldCount + i] = Variant.From(enumerator.Current);
                 }
 
                 return;
@@ -1578,6 +1579,7 @@ namespace Godot.Collections
             // instead of growing it as we add items.
             if (collection.TryGetNonEnumeratedCount(out int count))
             {
+                int oldCount = Count;
                 Resize(Count + count);
 
                 using var enumerator = collection.GetEnumerator();
@@ -1585,7 +1587,7 @@ namespace Godot.Collections
                 for (int i = 0; i < count; i++)
                 {
                     enumerator.MoveNext();
-                    this[count + i] = enumerator.Current;
+                    this[oldCount + i] = enumerator.Current;
                 }
 
                 return;
-- 
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