From 6e0eae141b66ef61e21e3fb82b1b6e242f81c6a7 Mon Sep 17 00:00:00 2001
From: zhurengong <2731412072@qq.com>
Date: Tue, 19 Apr 2022 15:45:51 +0800
Subject: [PATCH 1/3] fixed assembly can't be unloaded

---
 .../SharedSource/LuaCs/Cs/CsScriptLoader.cs        |  9 +++++++++
 .../SharedSource/LuaCs/LuaCsSetup.cs               | 14 ++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptLoader.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptLoader.cs
index 7adf82a7a..389f19aa1 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptLoader.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptLoader.cs
@@ -144,5 +144,14 @@ namespace Barotrauma
 			return files.ToArray();
 		}
 
+		public void Clear()
+        {
+			Assembly = null;
+        }
+
+		~CsScriptLoader()
+		{
+			
+		}
 	}
 }
\ No newline at end of file
diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/LuaCsSetup.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/LuaCsSetup.cs
index c25c4fa46..ec0890c7f 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/LuaCsSetup.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/LuaCsSetup.cs
@@ -278,6 +278,10 @@ namespace Barotrauma
 
 		public void Stop()
 		{
+			foreach (var type in AppDomain.CurrentDomain.GetAssemblies().Where(a => a.GetName().Name == "NetScriptAssembly").SelectMany(assembly => assembly.GetTypes()))
+			{
+				UserData.UnregisterType(type, true);
+			}
 			foreach (var mod in ACsMod.LoadedMods.ToArray()) mod.Dispose();
 			ACsMod.LoadedMods.Clear();
 			Hook?.Call("stop");
@@ -289,8 +293,18 @@ namespace Barotrauma
 			Game = new LuaGame();
 			Networking = new LuaCsNetworking();
 			LuaScriptLoader = null;
+			lua = null;
 			Lua = null;
 			CsScript = null;
+
+            if (CsScriptLoader != null)
+			{
+				CsScriptLoader.Clear();
+				CsScriptLoader.Unload();
+				CsScriptLoader = null;
+				GC.Collect();
+				GC.WaitForPendingFinalizers();
+			}
 		}
 
 		public void Initialize()

From 1b0c8654590ba69aa3c58c2317cc45d56bee5949 Mon Sep 17 00:00:00 2001
From: zhurengong <2731412072@qq.com>
Date: Tue, 19 Apr 2022 18:51:53 +0800
Subject: [PATCH 2/3] should get the last assembly

---
 .../SharedSource/LuaCs/Lua/LuaClasses/LuaUserData.cs            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Lua/LuaClasses/LuaUserData.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Lua/LuaClasses/LuaUserData.cs
index 48393ab6b..122428209 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Lua/LuaClasses/LuaUserData.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Lua/LuaClasses/LuaUserData.cs
@@ -13,7 +13,7 @@ namespace Barotrauma
 		{
 			var type = Type.GetType(typeName);
 			if (type != null) return type;
-			foreach (var a in AppDomain.CurrentDomain.GetAssemblies())
+			foreach (var a in AppDomain.CurrentDomain.GetAssemblies().Reverse())
 			{
 				type = a.GetType(typeName);
 				if (type != null)

From 592492a56fcb7d615c7cdfb0ef32ac733464f4ff Mon Sep 17 00:00:00 2001
From: zhurengong <2731412072@qq.com>
Date: Tue, 19 Apr 2022 19:01:10 +0800
Subject: [PATCH 3/3] forgot this.

---
 .../SharedSource/LuaCs/Cs/CsScriptRunner.cs                | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptRunner.cs b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptRunner.cs
index 112280d50..60bdf559f 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptRunner.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptRunner.cs
@@ -9,6 +9,7 @@ using Microsoft.CodeAnalysis;
 using System.Runtime.Loader;
 using System.Reflection.PortableExecutable;
 using System.Reflection.Metadata;
+using MoonSharp.Interpreter;
 
 namespace Barotrauma
 {
@@ -97,7 +98,11 @@ namespace Barotrauma
 							if (runner != null)
                             {
 								var method = runner.GetType().GetMethod("Run", BindingFlags.Public | BindingFlags.Instance);
-								if (method != null) scriptResilt = method.Invoke(runner, null);
+								if (method != null)
+                                {
+									scriptResilt = method.Invoke(runner, null);
+									foreach (var type in assembly.GetTypes()) { UserData.UnregisterType(type, true); }
+								}
 								else LuaCsSetup.PrintCsError("Script Error - no run method detected");
 							}
 							else LuaCsSetup.PrintCsError("Script Error - no runner class detected");