From ce7f9e71c1c775b3f4db1603f0c7eab92ca6bdd8 Mon Sep 17 00:00:00 2001
From: abcdefg30 <alphabet@streber24.de>
Date: Tue, 16 May 2023 19:37:01 +0200
Subject: [PATCH] DefaultSpriteSequence: Avoid an extra allocation and LINQ
 when adding shadow frames

---
 OpenRA.Mods.Common/Graphics/DefaultSpriteSequence.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/OpenRA.Mods.Common/Graphics/DefaultSpriteSequence.cs b/OpenRA.Mods.Common/Graphics/DefaultSpriteSequence.cs
index 0edc80411b..baa313e9fe 100644
--- a/OpenRA.Mods.Common/Graphics/DefaultSpriteSequence.cs
+++ b/OpenRA.Mods.Common/Graphics/DefaultSpriteSequence.cs
@@ -318,7 +318,12 @@ namespace OpenRA.Mods.Common.Graphics
 			}
 
 			if (shadowStart >= 0)
-				usedFrames.AddRange(usedFrames.ToList().Select(i => i + shadowStart - start));
+			{
+				var shadowOffset = shadowStart - start;
+				var frameCount = usedFrames.Count;
+				for (var i = 0; i < frameCount; i++)
+					usedFrames.Add(usedFrames[i] + shadowOffset);
+			}
 
 			return usedFrames;
 		}