From 6e0c4a66d85e7a7b4be32546211d45dd76c44aea Mon Sep 17 00:00:00 2001
From: MrGadget <9826063+MrGadget1024@users.noreply.github.com>
Date: Wed, 10 Jan 2024 04:16:47 -0500
Subject: [PATCH] fix(NetworkManager): Prevent client from calling
 ServerChangeScene (#3729)

- Throws error if server isn't active
- allows for changing to offline scene regardless
---
 Assets/Mirror/Core/NetworkManager.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Assets/Mirror/Core/NetworkManager.cs b/Assets/Mirror/Core/NetworkManager.cs
index f5e5d6121..150daccb4 100644
--- a/Assets/Mirror/Core/NetworkManager.cs
+++ b/Assets/Mirror/Core/NetworkManager.cs
@@ -850,6 +850,14 @@ public virtual void ServerChangeScene(string newSceneName)
                 return;
             }
 
+            // Throw error if called from client
+            // Allow changing scene while stopping the server
+            if (!NetworkServer.active && newSceneName != offlineScene)
+            {
+                Debug.LogError("ServerChangeScene can only be called on an active server.");
+                return;
+            }
+
             // Debug.Log($"ServerChangeScene {newSceneName}");
             NetworkServer.SetAllClientsNotReady();
             networkSceneName = newSceneName;