From 1bcd5a876eaa117ee70f6edda1cf1450a6accd6c Mon Sep 17 00:00:00 2001
From: hondacrx <prelude_20032002@yahoo.com>
Date: Sun, 26 Sep 2021 11:38:16 -0400
Subject: [PATCH] Core/Players: Prevent creating characters with duplicate
 names

Port From (https://github.com/TrinityCore/TrinityCore/commit/52de393f10dae4b21b84bd02aadf929b2283d8fe)
---
 Source/Game/Handlers/CharacterHandler.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Source/Game/Handlers/CharacterHandler.cs b/Source/Game/Handlers/CharacterHandler.cs
index 939e2be81..be5f72b49 100644
--- a/Source/Game/Handlers/CharacterHandler.cs
+++ b/Source/Game/Handlers/CharacterHandler.cs
@@ -509,6 +509,13 @@ namespace Game
                         return;
                     }
 
+                    // Check name uniqueness in the same step as saving to database
+                    if (Global.CharacterCacheStorage.GetCharacterCacheByName(createInfo.Name) != null)
+                    {
+                        SendCharCreate(ResponseCodes.CharCreateNameInUse);
+                        return;
+                    }
+
                     Player newChar = new(this);
                     newChar.GetMotionMaster().Initialize();
                     if (!newChar.Create(Global.ObjectMgr.GetGenerator(HighGuid.Player).Generate(), createInfo))