Created userdata metatable

rsc/scripts/setup_server.lua

@@ -15,7 +15,10 @@ roomManagerAPI.SetOnCreate(function(room, index)
 
 	roomAPI.SetOnTick(room, function(room)
 		roomAPI.ForEachCharacter(room, function(character)
-			--
+			--testing the metatables
+			local meta = getmetatable(character)
+			print("", "userdata metatable: ", meta)
+			print(character["trying"])
 		end)
 	end)
 end)
@@ -33,4 +36,8 @@ roomAPI.Initialize(underworld, mapSaver.Load, mapSaver.Save, mapMaker.DebugGrass
 --call the monstrosity
 doorUtility.createDoorPair("pair 1", overworld, 0, -64, underworld, 0, 0)
 
+--testing the metatables
+local meta = getmetatable(underworld)
+print("", "userdata metatable: ", meta)
+
 print("Finished the lua script")

server/server_logic.cpp

@@ -23,6 +23,7 @@
 
 //utility functions
 #include "sql_tools.hpp"
+#include "userdata.hpp"
 
 //std & STL
 #include <stdexcept>
@@ -78,6 +79,21 @@ void ServerApplication::Init(int argc, char* argv[]) {
 
 	std::cout << "Initialized lua" << std::endl;
 
+	//create the userdata metatable
+	lua_pushlightuserdata(luaState, nullptr); //userdata
+	lua_createtable(luaState, 1, 0); //table
+
+	//__index
+	lua_pushstring(luaState, "__index");
+	lua_pushcfunction(luaState, userdataIndex);
+	lua_settable(luaState, -3);
+
+	//set in the object
+	lua_setmetatable(luaState, -2); //set the metatable for userdata
+	lua_pop(luaState, 1); //pop the userdata
+
+	std::cout << "\tCreated userdata metatable" << std::endl;
+
 	//append config["dir.scripts"] to the module path
 	if (config["dir.scripts"].size() > 0) {
 		//get the original path

server/userdata.cpp

@@ -0,0 +1,29 @@
+/* Copyright: (c) Kayne Ruse 2013-2015
+ * 
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ * 
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ * 
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+*/
+#include "userdata.hpp"
+
+#include <iostream>
+
+int userdataIndex(lua_State* L) {
+	std::cout << "WARNING: userdataIndex called" << std::endl;
+	return 0;
+}

server/userdata.hpp

@@ -0,0 +1,31 @@
+/* Copyright: (c) Kayne Ruse 2013-2015
+ * 
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ * 
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ * 
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+*/
+#ifndef METATABLES_HPP_
+#define METATABLES_HPP_
+
+#include "lua.hpp"
+
+#define TORTUGA_USERDATA_NAME "userdata"
+
+int userdataIndex(lua_State* L);
+
+#endif