src/subgame.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "subgame.h"
  21 #include "porting.h"
  22 #include "filesys.h"
  23 #include "settings.h"
  24 #include "log.h"
  25
  26 SubgameSpec findSubgame(const std::string &id)
  27 {
  28         if(id == "")
  29                 return SubgameSpec();
  30         std::string share_server = porting::path_share + DIR_DELIM + "server";
  31         std::string user_server = porting::path_user + DIR_DELIM + "server";
  32         // Find game directory
  33         std::string game_path =
  34                         user_server + DIR_DELIM + "games" + DIR_DELIM + id;
  35         bool user_game = true; // Game is in user's directory
  36         if(!fs::PathExists(game_path)){
  37                 game_path = share_server + DIR_DELIM + "games" + DIR_DELIM + id;
  38                 user_game = false;
  39         }
  40         if(!fs::PathExists(game_path))
  41                 return SubgameSpec();
  42         // Find addon directories
  43         std::set<std::string> addon_paths;
  44         if(!user_game)
  45                 addon_paths.insert(share_server + DIR_DELIM + "addons"
  46                                 + DIR_DELIM + id);
  47         addon_paths.insert(user_server + DIR_DELIM + "addons"
  48                         + DIR_DELIM + id);
  49         return SubgameSpec(id, game_path, addon_paths);
  50 }
  51
  52 std::set<std::string> getAvailableGameIds()
  53 {
  54         std::set<std::string> gameids;
  55         std::set<std::string> gamespaths;
  56         gamespaths.insert(porting::path_share + DIR_DELIM + "server"
  57                         + DIR_DELIM + "games");
  58         gamespaths.insert(porting::path_user + DIR_DELIM + "server"
  59                         + DIR_DELIM + "games");
  60         for(std::set<std::string>::const_iterator i = gamespaths.begin();
  61                         i != gamespaths.end(); i++){
  62                 std::vector<fs::DirListNode> dirlist = fs::GetDirListing(*i);
  63                 for(u32 j=0; j<dirlist.size(); j++){
  64                         if(!dirlist[j].dir)
  65                                 continue;
  66                         gameids.insert(dirlist[j].name);
  67                 }
  68         }
  69         return gameids;
  70 }
  71
  72 #define LEGACY_GAMEID "mesetint"
  73
  74 std::string getWorldGameId(const std::string &world_path, bool can_be_legacy)
  75 {
  76         std::string conf_path = world_path + DIR_DELIM + "world.mt";
  77         Settings conf;
  78         bool succeeded = conf.readConfigFile(conf_path.c_str());
  79         if(!succeeded){
  80                 if(can_be_legacy){
  81                         // If map_meta.txt exists, it is probably an old minetest world
  82                         if(fs::PathExists(world_path + DIR_DELIM + "map_meta.txt"))
  83                                 return LEGACY_GAMEID;
  84                 }
  85                 return "";
  86         }
  87         if(!conf.exists("gameid"))
  88                 return "";
  89         return conf.get("gameid");
  90 }
  91
  92 std::vector<WorldSpec> getAvailableWorlds()
  93 {
  94         std::vector<WorldSpec> worlds;
  95         std::set<std::string> worldspaths;
  96         worldspaths.insert(porting::path_user + DIR_DELIM + "server"
  97                         + DIR_DELIM + "worlds");
  98         infostream<<"Searching worlds..."<<std::endl;
  99         for(std::set<std::string>::const_iterator i = worldspaths.begin();
 100                         i != worldspaths.end(); i++){
 101                 infostream<<"  In "<<(*i)<<": "<<std::endl;
 102                 std::vector<fs::DirListNode> dirvector = fs::GetDirListing(*i);
 103                 for(u32 j=0; j<dirvector.size(); j++){
 104                         if(!dirvector[j].dir)
 105                                 continue;
 106                         std::string fullpath = *i + DIR_DELIM + dirvector[j].name;
 107                         std::string name = dirvector[j].name;
 108                         std::string gameid = getWorldGameId(fullpath);
 109                         WorldSpec spec(fullpath, name, gameid);
 110                         if(!spec.isValid()){
 111                                 infostream<<"(invalid: "<<name<<") ";
 112                         } else {
 113                                 infostream<<name<<" ";
 114                                 worlds.push_back(spec);
 115                         }
 116                 }
 117                 infostream<<std::endl;
 118         }
 119         // Check old world location
 120         do{
 121                 std::string fullpath = porting::path_user + DIR_DELIM + ".."
 122                                 + DIR_DELIM + "world";
 123                 if(!fs::PathExists(fullpath))
 124                         break;
 125                 std::string name = "Old World";
 126                 std::string gameid = getWorldGameId(fullpath, true);
 127                 WorldSpec spec(fullpath, name, gameid);
 128                 infostream<<"Old world found."<<std::endl;
 129                 worlds.push_back(spec);
 130         }while(0);
 131         infostream<<worlds.size()<<" found."<<std::endl;
 132         return worlds;
 133 }
 134
 135