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diff --git a/src/guiLuaApi.h b/src/guiLuaApi.h
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+/*
+Minetest
+Copyright (C) 2013 sapier
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef GUILUAAPI_H_
+#define GUILUAAPI_H_
+
+/******************************************************************************/
+/* Includes                                                                   */
+/******************************************************************************/
+#include "serverlist.h"
+
+/******************************************************************************/
+/* Typedefs and macros                                                        */
+/******************************************************************************/
+typedef int (*lua_CFunction) (lua_State *L);
+
+/******************************************************************************/
+/* forward declarations                                                       */
+/******************************************************************************/
+class GUIEngine;
+
+
+/******************************************************************************/
+/* declarations                                                               */
+/******************************************************************************/
+
+/** Implementation of lua api support for mainmenu */
+class guiLuaApi {
+
+public:
+	/**
+	 * initialize given Lua stack
+	 * @param L lua stack to initialize
+	 * @param engine pointer to GUIEngine element to use as reference
+	 */
+	static void initialize(lua_State* L,GUIEngine* engine);
+
+	/** default destructor */
+	virtual ~guiLuaApi() {}
+
+private:
+	/**
+	 * read a text variable from gamedata table within lua stack
+	 * @param L stack to read variable from
+	 * @param name name of variable to read
+	 * @return string value of requested variable
+	 */
+	static std::string getTextData(lua_State *L, std::string name);
+
+	/**
+	 * read a integer variable from gamedata table within lua stack
+	 * @param L stack to read variable from
+	 * @param name name of variable to read
+	 * @return integer value of requested variable
+	 */
+	static int getIntegerData(lua_State *L, std::string name,bool& valid);
+
+	/**
+	 * read a bool variable from gamedata table within lua stack
+	 * @param L stack to read variable from
+	 * @param name name of variable to read
+	 * @return bool value of requested variable
+	 */
+	static int getBoolData(lua_State *L, std::string name,bool& valid);
+
+	/**
+	 * get the corresponding engine pointer from a lua stack
+	 * @param L stack to read pointer from
+	 * @return pointer to GUIEngine
+	 */
+	static GUIEngine* get_engine(lua_State *L);
+
+
+	/**
+	 * register a static member function as lua api call at current position of stack
+	 * @param L stack to registe fct to
+	 * @param name of function within lua
+	 * @param fct C-Function to call on lua call of function
+	 * @param top current top of stack
+	 */
+	static bool registerFunction(	lua_State* L,
+									const char* name,
+									lua_CFunction fct,
+									int top
+								);
+
+	/**
+	 * check if a path is within some of minetests folders
+	 * @param path path to check
+	 * @return true/false
+	 */
+	static bool isMinetestPath(std::string path);
+
+	//api calls
+
+	static int l_start(lua_State *L);
+
+	static int l_close(lua_State *L);
+
+	static int l_create_world(lua_State *L);
+
+	static int l_delete_world(lua_State *L);
+
+	static int l_get_worlds(lua_State *L);
+
+	static int l_get_games(lua_State *L);
+
+	static int l_get_favorites(lua_State *L);
+
+	static int l_delete_favorite(lua_State *L);
+
+	static int l_get_version(lua_State *L);
+
+	//gui
+
+	static int l_show_keys_menu(lua_State *L);
+
+	static int l_show_file_open_dialog(lua_State *L);
+
+	static int l_set_topleft_text(lua_State *L);
+
+	static int l_set_clouds(lua_State *L);
+
+	static int l_get_textlist_index(lua_State *L);
+
+	static int l_set_background(lua_State *L);
+
+	static int l_update_formspec(lua_State *L);
+
+	//settings
+
+	static int l_setting_set(lua_State *L);
+
+	static int l_setting_get(lua_State *L);
+
+	static int l_setting_getbool(lua_State *L);
+
+	static int l_setting_setbool(lua_State *L);
+
+	//filesystem
+
+	static int l_get_scriptdir(lua_State *L);
+
+	static int l_get_modpath(lua_State *L);
+
+	static int l_get_gamepath(lua_State *L);
+
+	static int l_get_dirlist(lua_State *L);
+
+	static int l_create_dir(lua_State *L);
+
+	static int l_delete_dir(lua_State *L);
+
+	static int l_copy_dir(lua_State *L);
+
+	static int l_extract_zip(lua_State *L);
+
+	static int l_get_modstore_details(lua_State *L);
+
+	static int l_get_modstore_list(lua_State *L);
+
+	static int l_download_file(lua_State *L);
+
+
+};
+
+#endif