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/*
Minetest-c55
Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>

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 GUICREATEWORLD_HEADER
#define GUICREATEWORLD_HEADER

#include "irrlichttypes_extrabloated.h"
#include "modalMenu.h"
#include <string>
#include "subgame.h"

struct CreateWorldDest
{
	virtual void accepted(std::wstring name, std::string gameid) = 0;
	virtual ~CreateWorldDest() {};
};

class GUICreateWorld : public GUIModalMenu
{
public:
	GUICreateWorld(gui::IGUIEnvironment* env,
			gui::IGUIElement* parent, s32 id,
			IMenuManager *menumgr,
			CreateWorldDest *dest,
			const std::vector<SubgameSpec> &games);
	~GUICreateWorld();
	
	void removeChildren();
	/*
		Remove and re-add (or reposition) stuff
	*/
	void regenerateGui(v2u32 screensize);

	void drawMenu();

	void acceptInput();

	bool OnEvent(const SEvent& event);
	
private:
	CreateWorldDest *m_dest;
	std::vector<SubgameSpec> m_games;
};

#endif

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

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.
*/

#include "subgame.h"
#include "porting.h"
#include "filesys.h"
#include "settings.h"
#include "log.h"
#include "strfnd.h"
#include "defaultsettings.h"  // for override_default_settings
#include "mapgen.h"  // for MapgenParams
#include "util/string.h"

#ifndef SERVER
	#include "client/tile.h" // getImagePath
#endif

bool getGameMinetestConfig(const std::string &game_path, Settings &conf)
{
	std::string conf_path = game_path + DIR_DELIM + "minetest.conf";
	return conf.readConfigFile(conf_path.c_str());
}

bool getGameConfig(const std::string &game_path, Settings &conf)
{
	std::string conf_path = game_path + DIR_DELIM + "game.conf";
	return conf.readConfigFile(conf_path.c_str());
}

std::string getGameName(const std::string &game_path)
{
	Settings conf;
	if(!getGameConfig(game_path, conf))
		return "";
	if(!conf.exists("name"))
		return "";
	return conf.get("name");
}

struct GameFindPath
{
	std::string path;
	bool user_specific;
	GameFindPath(const std::string &path, bool user_specific):
		path(path),
		user_specific(user_specific)
	{}
};

Strfnd getSubgamePathEnv() {
	std::string sp;
	char *subgame_path = getenv("MINETEST_SUBGAME_PATH");

	if(subgame_path) {
		sp = std::string(subgame_path);
	}

	return Strfnd(sp);
}

SubgameSpec findSubgame(const std::string &id)
{
	if(id == "")
		return SubgameSpec();
	std::string share = porting::path_share;
	std::string user = porting::path_user;
	std::vector<GameFindPath> find_paths;

	Strfnd search_paths = getSubgamePathEnv();

	while(!search_paths.atend()) {
		std::string path = search_paths.next(":");
		find_paths.push_back(GameFindPath(
				path + DIR_DELIM + id, false));
		find_paths.push_back(GameFindPath(
				path + DIR_DELIM + id + "_game", false));
	}

	find_paths.push_back(GameFindPath(
			user + DIR_DELIM + "games" + DIR_DELIM + id + "_game", true));
	find_paths.push_back(GameFindPath(
			user + DIR_DELIM + "games" + DIR_DELIM + id, true));
	find_paths.push_back(GameFindPath(
			share + DIR_DELIM + "games" + DIR_DELIM + id + "_game", false));
	find_paths.push_back(GameFindPath(
			share + DIR_DELIM + "games" + DIR_DELIM + id, false));
	// Find game directory
	std::string game_path;
	bool user_game = true; // Game is in user's directory
	for(u32 i=0; i<find_paths.size(); i++){
		const std::string &try_path = find_paths[i].path;
		if(fs::PathExists(try_path)){
			game_path = try_path;
			user_game = find_paths[i].user_specific;
			break;