From 5c6450c6a29936980d0849f4158e290591f40d6e Mon Sep 17 00:00:00 2001
From: Evil Factory <36804725+evilfactory@users.noreply.github.com>
Date: Mon, 8 Nov 2021 22:27:27 -0300
Subject: [PATCH] provide instance in Hook Method

---
 .../SharedSource/Lua/LuaClasses.cs            | 58 ++++++++++++++++---
 1 file changed, 50 insertions(+), 8 deletions(-)

diff --git a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs
index dcabc221f..88c980a46 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs
@@ -740,9 +740,22 @@ namespace Barotrauma
 				Before, After
 			}
 
-			static bool HookLuaPatchPrefix(MethodBase __originalMethod, object[] __params)
+			static bool HookLuaPatchPrefix(MethodBase __originalMethod, object[] __params, object __instance)
 			{
-				var result = new LuaResult(luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], __params));
+				object[] parameters;
+
+				if (__instance == null)
+				{
+					parameters = __params;
+				}
+				else
+				{
+					parameters = new object[__params.Length + 1];
+					__params.CopyTo(parameters, 1);
+					parameters[0] = __instance;
+				}
+
+				var result = new LuaResult(luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], parameters));
 
 				if (!result.IsNull())
 				{
@@ -752,9 +765,22 @@ namespace Barotrauma
 				return true;
 			}
 
-			static bool HookLuaPatchRetPrefix(MethodBase __originalMethod, object[] __params, ref object __result)
+			static bool HookLuaPatchRetPrefix(MethodBase __originalMethod, object[] __params, ref object __result, object __instance)
 			{
-				var result = new LuaResult(luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], __params));
+				object[] parameters;
+
+				if (__instance == null)
+				{
+					parameters = __params;
+				}
+				else
+				{
+					parameters = new object[__params.Length + 1];
+					__params.CopyTo(parameters, 1);
+					parameters[0] = __instance;
+				}
+
+				var result = new LuaResult(luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], parameters));
 
 				if (!result.IsNull())
 				{
@@ -765,14 +791,30 @@ namespace Barotrauma
 				return true;
 			}
 
-			static void HookLuaPatchPostfix(MethodBase __originalMethod, object[] __params)
+			static void HookLuaPatchPostfix(MethodBase __originalMethod, object[] __params, object __instance)
 			{
-				var result = new LuaResult(luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], __params));
+				if (__instance == null)
+					luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], __params);
+				else
+					luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], __instance, __params);
 			}
 
-			static void HookLuaPatchRetPostfix(MethodBase __originalMethod, object[] __params, ref object __result)
+			static void HookLuaPatchRetPostfix(MethodBase __originalMethod, object[] __params, ref object __result, object __instance)
 			{
-				var result = new LuaResult(luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], __params));
+				object[] parameters;
+
+				if (__instance == null)
+				{
+					parameters = __params;
+				}
+				else
+				{
+					parameters = new object[__params.Length + 1];
+					__params.CopyTo(parameters, 1);
+					parameters[0] = __instance;
+				}
+
+				var result = new LuaResult(luaSetup.hook.Call(methodNameToHookName[__originalMethod.Name], parameters));
 
 				if (!result.IsNull())
 					__result = result.Object();