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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 "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.empty())
- 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.emplace_back(path + DIR_DELIM + id, false);
- find_paths.emplace_back(path + DIR_DELIM + id + "_game", false);
- }
- find_paths.emplace_back(user + DIR_DELIM + "games" + DIR_DELIM + id + "_game", true);
- find_paths.emplace_back(user + DIR_DELIM + "games" + DIR_DELIM + id, true);
- find_paths.emplace_back(share + DIR_DELIM + "games" + DIR_DELIM + id + "_game",
- false);
- find_paths.emplace_back(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 (const GameFindPath &find_path : find_paths) {
- const std::string &try_path = find_path.path;
- if (fs::PathExists(try_path)) {
- game_path = try_path;
- user_game = find_path.user_specific;
- break;
- }
- }
- if (game_path.empty())
- 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.empty())
- 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.empty())
- 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 (const std::string &gamespath : gamespaths) {
- std::vector<fs::DirListNode> dirlist = fs::GetDirListing(gamespath);
- for (const fs::DirListNode &dln : dirlist) {
- if(!dln.dir)
- continue;
- // If configuration file is not found or broken, ignore game
- Settings conf;
- if(!getGameConfig(gamespath + DIR_DELIM + dln.name, conf))
- continue;
- // Add it to result
- const char *ends[] = {"_game", NULL};
- std::string shorter = removeStringEnd(dln.name, ends);
- if (!shorter.empty())
- gameids.insert(shorter);
- else
- gameids.insert(dln.name);
- }
- }
- return gameids;
- }
- std::vector<SubgameSpec> getAvailableGames()
- {
- std::vector<SubgameSpec> specs;
- std::set<std::string> gameids = getAvailableGameIds();
- for (const auto &gameid : gameids)
- specs.push_back(findSubgame(gameid));
- return specs;
- }
- #define LEGACY_GAMEID "minetest"
- bool getWorldExists(const std::string &world_path)
- {
- return (fs::PathExists(world_path + DIR_DELIM + "map_meta.txt") ||
- fs::PathExists(world_path + DIR_DELIM + "world.mt"));
- }
- std::string getWorldGameId(const std::string &world_path, bool can_be_legacy)
- {
- std::string conf_path = world_path + DIR_DELIM + "world.mt";
- Settings conf;
- bool succeeded = conf.readConfigFile(conf_path.c_str());
- if(!succeeded){
- if(can_be_legacy){
- // If map_meta.txt exists, it is probably an old minetest world
- if(fs::PathExists(world_path + DIR_DELIM + "map_meta.txt"))
- return LEGACY_GAMEID;
- }
- return "";
- }
- if(!conf.exists("gameid"))
- return "";
- // The "mesetint" gameid has been discarded
- if(conf.get("gameid") == "mesetint")
- return "minetest";
- return conf.get("gameid");
- }
- std::string getWorldPathEnv()
- {
- char *world_path = getenv("MINETEST_WORLD_PATH");
- return world_path ? std::string(world_path) : "";
- }
- std::vector<WorldSpec> getAvailableWorlds()
- {
- std::vector<WorldSpec> worlds;
- std::set<std::string> worldspaths;
- Strfnd search_paths(getWorldPathEnv());
- while (!search_paths.at_end())
- worldspaths.insert(search_paths.next(PATH_DELIM));
- worldspaths.insert(porting::path_user + DIR_DELIM + "worlds");
- infostream << "Searching worlds..." << std::endl;
- for (const std::string &worldspath : worldspaths) {
- infostream << " In " << worldspath << ": " <<std::endl;
- std::vector<fs::DirListNode> dirvector = fs::GetDirListing(worldspath);
- for (const fs::DirListNode &dln : dirvector) {
- if(!dln.dir)
- continue;
- std::string fullpath = worldspath + DIR_DELIM + dln.name;
- std::string name = dln.name;
- // Just allow filling in the gameid always for now
- bool can_be_legacy = true;
- std::string gameid = getWorldGameId(fullpath, can_be_legacy);
- WorldSpec spec(fullpath, name, gameid);
- if(!spec.isValid()){
- infostream<<"(invalid: "<<name<<") ";
- } else {
- infostream<<name<<" ";
- worlds.push_back(spec);
- }
- }
- infostream<<std::endl;
- }
- // Check old world location
- do{
- std::string fullpath = porting::path_user + DIR_DELIM + "world";
- if(!fs::PathExists(fullpath))
- break;
- std::string name = "Old World";
- std::string gameid = getWorldGameId(fullpath, true);
- WorldSpec spec(fullpath, name, gameid);
- infostream<<"Old world found."<<std::endl;
- worlds.push_back(spec);
- }while(false);
- infostream<<worlds.size()<<" found."<<std::endl;
- return worlds;
- }
- bool loadGameConfAndInitWorld(const std::string &path, const SubgameSpec &gamespec)
- {
- // Override defaults with those provided by the game.
- // We clear and reload the defaults because the defaults
- // might have been overridden by other subgame config
- // files that were loaded before.
- g_settings->clearDefaults();
- set_default_settings(g_settings);
- Settings game_defaults;
- getGameMinetestConfig(gamespec.path, game_defaults);
- override_default_settings(g_settings, &game_defaults);
- infostream << "Initializing world at " << path << std::endl;
- fs::CreateAllDirs(path);
- // Create world.mt if does not already exist
- std::string worldmt_path = path + DIR_DELIM "world.mt";
- if (!fs::PathExists(worldmt_path)) {
- Settings conf;
- conf.set("gameid", gamespec.id);
- conf.set("backend", "sqlite3");
- conf.set("player_backend", "sqlite3");
- conf.setBool("creative_mode", g_settings->getBool("creative_mode"));
- conf.setBool("enable_damage", g_settings->getBool("enable_damage"));
- if (!conf.updateConfigFile(worldmt_path.c_str()))
- return false;
- }
- // Create map_meta.txt if does not already exist
- std::string map_meta_path = path + DIR_DELIM + "map_meta.txt";
- if (!fs::PathExists(map_meta_path)){
- verbosestream << "Creating map_meta.txt (" << map_meta_path << ")" << std::endl;
- fs::CreateAllDirs(path);
- std::ostringstream oss(std::ios_base::binary);
- Settings conf;
- MapgenParams params;
- params.readParams(g_settings);
- params.writeParams(&conf);
- conf.writeLines(oss);
- oss << "[end_of_params]\n";
- fs::safeWriteToFile(map_meta_path, oss.str());
- }
- return true;
- }
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