/src/client/

• ../
• CMakeLists.txt
• activeobjectmgr.cpp
• activeobjectmgr.h
• camera.cpp
• camera.h
• client.cpp
• client.h
• clientenvironment.cpp
• clientenvironment.h
• clientevent.h
• clientlauncher.cpp
• clientlauncher.h
• clientmap.cpp
• clientmap.h
• clientmedia.cpp
• clientmedia.h
• clientobject.cpp
• clientobject.h
• clientsimpleobject.h
• clouds.cpp
• clouds.h
• content_cao.cpp
• content_cao.h
• content_cso.cpp
• content_cso.h
• content_mapblock.cpp
• content_mapblock.h
• event_manager.h
• filecache.cpp
• filecache.h
• fontengine.cpp
• fontengine.h
• game.cpp
• game.h
• gameui.cpp
• gameui.h
• guiscalingfilter.cpp
• guiscalingfilter.h
• hud.cpp
• hud.h
• imagefilters.cpp
• imagefilters.h
• inputhandler.cpp
• inputhandler.h
• joystick_controller.cpp
• joystick_controller.h
• keycode.cpp
• keycode.h
• keys.h
• localplayer.cpp
• localplayer.h
• mapblock_mesh.cpp
• mapblock_mesh.h
• mesh.cpp
• mesh.h
• mesh_generator_thread.cpp
• mesh_generator_thread.h
• meshgen
• minimap.cpp
• minimap.h
• particles.cpp
• particles.h
• render
• renderingengine.cpp
• renderingengine.h
• shader.cpp
• shader.h
• shadows
• sky.cpp
• sky.h
• sound.cpp
• sound.h
• sound_openal.cpp
• sound_openal.h
• tile.cpp
• tile.h
• wieldmesh.cpp
• wieldmesh.h

/*
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 "util/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)
	{}
};

std::string getSubgamePathEnv()
{
	char *subgame_path = getenv("MINETEST_SUBGAME_PATH");
	return subgame_path ? std::string(subgame_path) : "";
}

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.at_end()) {
		std::string path = search_paths.next(PATH_DELIM);
		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;
		}
	}
	if(game_path == "")
		return SubgameSpec();
	std::string gamemod_path = game_path + DIR_DELIM + "mods";
	// Find mod directories
	std::set<std::string> mods_paths;
	if(!user_game)
		mods_paths.insert(share + DIR_DELIM + "mods");
	if(user != share || user_game)
		mods_paths.insert(user + DIR_DELIM + "mods");
	std::string game_name = getGameName(game_path);
	if(game_name == "")
		game_name = id;
	std::string menuicon_path;
#ifndef SERVER
	menuicon_path = getImagePath(game_path + DIR_DELIM + "menu" + DIR_DELIM + "icon.png");
#endif
	return SubgameSpec(id, game_path, gamemod_path, mods_paths, game_name,
			menuicon_path);
}

SubgameSpec findWorldSubgame(const std::string &world_path)
{
	std::string world_gameid = getWorldGameId(world_path, true);
	// See if world contains an embedded game; if so, use it.
	std::string world_gamepath = world_path + DIR_DELIM + "game";
	if(fs::PathExists(world_gamepath)){
		SubgameSpec gamespec;
		gamespec.id = world_gameid;
		gamespec.path = world_gamepath;
		gamespec.gamemods_path= world_gamepath + DIR_DELIM + "mods";
		gamespec.name = getGameName(world_gamepath);
		if(gamespec.name == "")
			gamespec.name = "unknown";
		return gamespec;
	}
	return findSubgame(world_gameid);
}

std::set<std::string> getAvailableGameIds()
{
	std::set<std::string> gameids;
	std::set<std::string> gamespaths;
	gamespaths.insert(porting::path_share + DIR_DELIM + "games");
	gamespaths.insert(porting::path_user + DIR_DELIM + "games");

	Strfnd search_paths(getSubgamePathEnv());

	while (!search_paths.at_end())
		gamespaths.insert(search_paths.next(PATH_DELIM));

	for (std::set<std::string>::const_iterator i = gamespaths.begin();
			i != gamespaths.end(); ++i){
		std::vector<fs::DirListNode> dirlist = fs::GetDirListing(*i);
		for(u32 j=0; j<dirlist.size(); j++){
			if(!dirlist[j].dir)
				continue;
			// If configuration file is not found or broken, ignore game
			Settings conf;
			if(!getGameConfig(*i + DIR_DELIM + dirlist[j].name, conf))
				continue;
			// Add it to result
			const char *ends[] = {"_game", NULL};
			std::string shorter = removeStringEnd(dirlist[j].name, ends);
			if(shorter != "")
				gameids.insert(shorter);
			else
				gameids.insert(dirlist[j].name);
		}
	}
	return gameids;
}