From fe6f19a3544a309d374c2cf33b716b3992f82e51 Mon Sep 17 00:00:00 2001
From: Max <89798523+MaxWasUnavailable@users.noreply.github.com>
Date: Sun, 18 Feb 2024 02:55:41 +0100
Subject: [PATCH] Allow LobbyCompat to join unknown/vanilla lobbies with
 unknown mods

---
 LobbyCompatibility/Features/PluginHelper.cs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/LobbyCompatibility/Features/PluginHelper.cs b/LobbyCompatibility/Features/PluginHelper.cs
index 7e016c2..4bd2784 100644
--- a/LobbyCompatibility/Features/PluginHelper.cs
+++ b/LobbyCompatibility/Features/PluginHelper.cs
@@ -186,12 +186,15 @@ internal static bool MatchesTargetRequirements(IEnumerable<PluginInfoRecord> tar
     }
 
     /// <summary>
-    ///     Checks if client is allowed to join vanilla lobbies.
+    ///     Checks if client is allowed to join vanilla or unknown lobbies.
     /// </summary>
-    /// <returns> True if client is allowed to join vanilla lobbies, false otherwise. </returns>
+    /// <returns> True if client is allowed to join vanilla or unknown lobbies, false otherwise. </returns>
+    /// <remarks> This means the client is allowed to have unknown or clientside mods. </remarks>
     internal static bool CanJoinVanillaLobbies()
     {
-        return GetAllPluginInfo().All(plugin => plugin.CompatibilityLevel is CompatibilityLevel.ClientOnly or null);
+        return GetAllPluginInfo().All(plugin =>
+            plugin.CompatibilityLevel != CompatibilityLevel.ServerOnly &&
+            plugin.CompatibilityLevel != CompatibilityLevel.ClientOptional);
     }
 
     /// <summary>