command-line/world game selection

8 files changed, 232 insertions, 69 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e1cfcfa09..e9fddf8c0 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -94,6 +94,7 @@ configure_file(
 )
 
 set(common_SRCS
+	subgame.cpp
 	inventorymanager.cpp
 	mods.cpp
 	serverremoteplayer.cpp
diff --git a/src/game.cpp b/src/game.cpp
index 0e3f570f4..ebf5028b7 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -51,6 +51,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "itemdef.h"
 #include "tile.h" // For TextureSource
 #include "logoutputbuffer.h"
+#include "subgame.h"
 
 /*
 	Setting this to 1 enables a special camera mode that forces
@@ -651,11 +652,12 @@ void the_game(
 	std::string map_dir,
 	std::string playername,
 	std::string password,
-	std::string address,
+	std::string address, // If "", local server is used
 	u16 port,
 	std::wstring &error_message,
 	std::string configpath,
-	ChatBackend &chat_backend
+	ChatBackend &chat_backend,
+	const SubgameSpec &gamespec // Used for local game
 )
 {
 	video::IVideoDriver* driver = device->getVideoDriver();
@@ -705,7 +707,7 @@ void the_game(
 	if(address == ""){
 		draw_load_screen(L"Creating server...", driver, font);
 		infostream<<"Creating server"<<std::endl;
-		server = new Server(map_dir, configpath, "mesetint");
+		server = new Server(map_dir, configpath, gamespec);
 		server->start(port);
 	}
 
diff --git a/src/game.h b/src/game.h
index 01e955ecd..4ca5a2433 100644
--- a/src/game.h
+++ b/src/game.h
@@ -22,7 +22,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "common_irrlicht.h"
 #include <string>
-
 #include "keycode.h"
 
 class KeyList : protected core::list<KeyPress>
@@ -123,6 +122,7 @@ public:
 };
 
 class ChatBackend;  /* to avoid having to include chat.h */
+struct SubgameSpec;
 
 void the_game(
 	bool &kill,
@@ -133,11 +133,12 @@ void the_game(
 	std::string map_dir,
 	std::string playername,
 	std::string password,
-	std::string address,
+	std::string address, // If "", local server is used
 	u16 port,
 	std::wstring &error_message,
 	std::string configpath,
-	ChatBackend &chat_backend
+	ChatBackend &chat_backend,
+	const SubgameSpec &gamespec // Used for local game
 );
 
 #endif
diff --git a/src/main.cpp b/src/main.cpp
index 8b2ef3668..00776d89c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -69,6 +69,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "log.h"
 #include "mods.h"
 #include "utility_string.h"
+#include "subgame.h"
 
 /*
 	Settings.
@@ -781,6 +782,8 @@ int main(int argc, char *argv[])
 			"Print more information to console"));
 	allowed_options.insert("logfile", ValueSpec(VALUETYPE_STRING,
 			"Set logfile path (debug.txt)"));
+	allowed_options.insert("gameid", ValueSpec(VALUETYPE_STRING,
+			"Set gameid"));
 #ifndef SERVER
 	allowed_options.insert("speedtests", ValueSpec(VALUETYPE_FLAG,
 			"Run speed tests"));
@@ -958,22 +961,63 @@ int main(int argc, char *argv[])
 		port = 30000;
 	
 	// Map directory
-	std::string map_dir = porting::path_user + DIR_DELIM + "server" + DIR_DELIM + "worlds" + DIR_DELIM + "world";
-	if(cmd_args.exists("map-dir"))
-		map_dir = cmd_args.get("map-dir");
+	std::string world_path = porting::path_user + DIR_DELIM + "server" + DIR_DELIM + "worlds" + DIR_DELIM + "world";
+	if(cmd_args.exists("world"))
+		world_path = cmd_args.get("world");
+	else if(cmd_args.exists("map-dir"))
+		world_path = cmd_args.get("map-dir");
 	else if(g_settings->exists("map-dir"))
-		map_dir = g_settings->get("map-dir");
+		world_path = g_settings->get("map-dir");
 	else{
 		// No map-dir option was specified.
 		// Check if the world is found from the default directory, and if
 		// not, see if the legacy world directory exists.
-		std::string legacy_map_dir = porting::path_user+DIR_DELIM+".."+DIR_DELIM+"world";
-		if(!fs::PathExists(map_dir) && fs::PathExists(legacy_map_dir)){
+		std::string legacy_world_path = porting::path_user+DIR_DELIM+".."+DIR_DELIM+"world";
+		if(!fs::PathExists(world_path) && fs::PathExists(legacy_world_path)){
 			errorstream<<"Warning: Using legacy world directory \""
-					<<legacy_map_dir<<"\""<<std::endl;
-			map_dir = legacy_map_dir;
+					<<legacy_world_path<<"\""<<std::endl;
+			world_path = legacy_world_path;
 		}
 	}
+	
+	// Determine gameid
+	std::string gameid = "";
+	if(cmd_args.exists("gameid"))
+		gameid = cmd_args.get("gameid");
+	std::string world_gameid = getWorldGameId(world_path);
+	if(world_gameid == ""){
+		if(gameid != "")
+			world_gameid = gameid;
+		else{
+			world_gameid = "mesetint";
+		}
+	}
+	if(gameid == "")
+		gameid = world_gameid;
+	else if(world_gameid != ""){
+		if(world_gameid != gameid){
+			errorstream<<"World gameid mismatch"<<std::endl;
+			return 1;
+		}
+	}
+	if(gameid == ""){
+		errorstream<<"No gameid supplied or detected"<<std::endl;
+		return 1;
+	}
+	
+	infostream<<"Using gameid \""<<gameid<<"\""<<std::endl;
+
+	SubgameSpec gamespec = findSubgame(gameid);
+	if(!gamespec.isValid()){
+		errorstream<<"Game \""<<gameid<<"\" not found"<<std::endl;
+		std::set<std::string> gameids = getAvailableGameIds();
+		infostream<<"Available gameids: ";
+		for(std::set<std::string>::const_iterator i = gameids.begin();
+				i != gameids.end(); i++)
+			infostream<<(*i)<<" ";
+		infostream<<std::endl;
+		return 1;
+	}
 
 	// Run dedicated server if asked to or no other option
 #ifdef SERVER
@@ -991,7 +1035,7 @@ int main(int argc, char *argv[])
 #endif
 		
 		// Create server
-		Server server(map_dir, configpath, "mesetint");
+		Server server(world_path, configpath, gamespec);
 		server.start(port);
 		
 		// Run server
@@ -1080,9 +1124,6 @@ int main(int argc, char *argv[])
 	*/
 	//driver->setMinHardwareBufferVertexCount(50);
 
-	// Set the window caption
-	device->setWindowCaption(L"Minetest [Main Menu]");
-	
 	// Create time getter
 	g_timegetter = new IrrlichtTimeGetter(device);
 	
@@ -1154,6 +1195,8 @@ int main(int argc, char *argv[])
 	*/
 	while(device->run() && kill == false)
 	{
+		// Set the window caption
+		device->setWindowCaption(L"Minetest [Main Menu]");
 
 		// This is used for catching disconnects
 		try
@@ -1257,7 +1300,7 @@ int main(int argc, char *argv[])
 					// Delete map if requested
 					if(menudata.delete_map)
 					{
-						bool r = fs::RecursiveDeleteContent(map_dir);
+						bool r = fs::RecursiveDeleteContent(world_path);
 						if(r == false)
 							error_message = L"Delete failed";
 						continue;
@@ -1303,14 +1346,15 @@ int main(int argc, char *argv[])
 				input,
 				device,
 				font,
-				map_dir,
+				world_path,
 				playername,
 				password,
 				address,
 				port,
 				error_message,
 				configpath,
-				chat_backend
+				chat_backend,
+				gamespec
 			);
 
 		} //try
diff --git a/src/server.cpp b/src/server.cpp
index 8f40cfa5b..7b34e3554 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -830,13 +830,13 @@ void PlayerInfo::PrintLine(std::ostream *s)
 */
 
 Server::Server(
-		std::string path_world,
-		std::string path_config,
-		std::string gamename
+		const std::string &path_world,
+		const std::string &path_config,
+		const SubgameSpec &gamespec
 	):
-	m_gamename(gamename),
 	m_path_world(path_world),
 	m_path_config(path_config),
+	m_gamespec(gamespec),
 	m_env(NULL),
 	m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
 	m_authmanager(path_world+DIR_DELIM+"auth.txt"),
@@ -865,55 +865,38 @@ Server::Server(
 	m_step_dtime_mutex.Init();
 	m_step_dtime = 0.0;
 
+	if(!gamespec.isValid())
+		throw ServerError("Supplied invalid gamespec");
+
 	// Figure out some paths
 	// share/server
 	m_path_share = porting::path_share + DIR_DELIM + "server";
-	// game
-	m_path_game = porting::path_user + DIR_DELIM + "server" + DIR_DELIM
-			+ "games" + DIR_DELIM + m_gamename;
-	bool user_game = true; // Game is in user's directory
-	if(!fs::PathExists(m_path_game)){
-		m_path_game = m_path_share + DIR_DELIM + "games" + DIR_DELIM
-				+ m_gamename;
-		user_game = false;
-	}
-	if(!fs::PathExists(m_path_game)){
-		throw ServerError("Could not find game files for game \""
-				+gamename+"\"");
-	}
-	// addons
-	if(!user_game)
-		m_path_addons.insert(m_path_share + DIR_DELIM + "addons"
-				+ DIR_DELIM + m_gamename);
-	m_path_addons.insert(porting::path_user + DIR_DELIM + "server"
-			+ DIR_DELIM + "addons" + DIR_DELIM + m_gamename);
-
-	infostream<<"Server created for gamename=\""<<gamename<<"\""<<std::endl;
-	infostream<<"- path_world  = "<<m_path_world<<std::endl;
-	infostream<<"- path_config = "<<m_path_config<<std::endl;
-	infostream<<"- path_game   = "<<m_path_game<<std::endl;
-	for(std::set<std::string>::const_iterator i = m_path_addons.begin();
-			i != m_path_addons.end(); i++)
-		infostream<<"- path_addons+= "<<(*i)<<std::endl;
+
+	infostream<<"Server created for gameid \""<<m_gamespec.id<<"\""<<std::endl;
+	infostream<<"- world:  "<<m_path_world<<std::endl;
+	infostream<<"- config: "<<m_path_config<<std::endl;
+	infostream<<"- game:   "<<m_gamespec.path<<std::endl;
+	for(std::set<std::string>::const_iterator i = m_gamespec.addon_paths.begin();
+			i != m_gamespec.addon_paths.end(); i++)
+		infostream<<"- addons: "<<(*i)<<std::endl;
 
 	// Path to builtin.lua
 	std::string builtinpath = m_path_share + DIR_DELIM + "builtin.lua";
 
 	// Add default global mod search path
-	m_modspaths.push_front(m_path_game + DIR_DELIM "mods");
+	m_modspaths.push_front(m_gamespec.path + DIR_DELIM "mods");
 	// Add world mod search path
 	m_modspaths.push_front(m_path_world + DIR_DELIM + "worldmods");
 	// Add addon mod search path
-	for(std::set<std::string>::const_iterator i = m_path_addons.begin();
-			i != m_path_addons.end(); i++){
+	for(std::set<std::string>::const_iterator i = m_gamespec.addon_paths.begin();
+			i != m_gamespec.addon_paths.end(); i++)
 		m_modspaths.push_front((*i) + DIR_DELIM + "mods");
-	}
 
 	// Print out mod search paths
 	for(core::list<std::string>::Iterator i = m_modspaths.begin();
 			i != m_modspaths.end(); i++){
 		std::string modspath = *i;
-		infostream<<"- modspath   += "<<modspath<<std::endl;
+		infostream<<"- mods:   "<<modspath<<std::endl;
 	}
 	
 	// Lock environment
@@ -1106,7 +1089,8 @@ void Server::start(unsigned short port)
 	<<"|  Y Y  \\  |   |  \\  ___/|  | \\  ___/ \\___ \\  |  |  "<<std::endl
 	<<"|__|_|  /__|___|  /\\___  >__|  \\___  >____  > |__|  "<<std::endl
 	<<"      \\/        \\/     \\/          \\/     \\/        "<<std::endl;
-	actionstream<<"Server listening on port "<<port<<"."<<std::endl;
+	actionstream<<"Server for gameid=\""<<m_gamespec.id
+			<<"\" listening on port "<<port<<"."<<std::endl;
 }
 
 void Server::stop()
diff --git a/src/server.h b/src/server.h
index a1d7e5df7..4948b8ba1 100644
--- a/src/server.h
+++ b/src/server.h
@@ -34,6 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "serverremoteplayer.h"
 #include "mods.h"
 #include "inventorymanager.h"
+#include "subgame.h"
 struct LuaState;
 typedef struct lua_State lua_State;
 class IWritableItemDefManager;
@@ -405,11 +406,11 @@ public:
 	/*
 		NOTE: Every public method should be thread-safe
 	*/
-
+	
 	Server(
-		std::string gamename,
-		std::string mapsavedir,
-		std::string configpath
+		const std::string &path_world,
+		const std::string &path_config,
+		const SubgameSpec &gamespec
 	);
 	~Server();
 	void start(unsigned short port);
@@ -647,20 +648,15 @@ private:
 		Variables
 	*/
 	
-	// Game name
-	std::string m_gamename;
 	// World directory
 	std::string m_path_world;
 	// Path to user's configuration file ("" = no configuration file)
 	std::string m_path_config;
+	// Subgame specification
+	SubgameSpec m_gamespec;
 
 	// Equivalent of /usr/share/minetest/server
 	std::string m_path_share;
-	// Equivalent of /usr/share/minetest/server/games/gamename
-	std::string m_path_game;
-	// Equivalent of /usr/share/minetest/server/addons/gamename
-	// and ~/.minetest/server/addons/gamename
-	std::set<std::string> m_path_addons;
 	
 	// Some timers
 	float m_liquid_transform_timer;
diff --git a/src/subgame.cpp b/src/subgame.cpp
new file mode 100644
index 000000000..ed50d09a4
--- /dev/null
+++ b/src/subgame.cpp
@@ -0,0 +1,82 @@
+/*
+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 General Public License as published by
+the Free Software Foundation; either version 2 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 General Public License for more details.
+
+You should have received a copy of the GNU 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"
+
+SubgameSpec findSubgame(const std::string &id)
+{
+	if(id == "")
+		return SubgameSpec();
+	std::string share_server = porting::path_share + DIR_DELIM + "server";
+	std::string user_server = porting::path_user + DIR_DELIM + "server";
+	// Find game directory
+	std::string game_path =
+			user_server + DIR_DELIM + "games" + DIR_DELIM + id;
+	bool user_game = true; // Game is in user's directory
+	if(!fs::PathExists(game_path)){
+		game_path = share_server + DIR_DELIM + "games" + DIR_DELIM + id;
+		user_game = false;
+	}
+	if(!fs::PathExists(game_path))
+		return SubgameSpec();
+	// Find addon directories
+	std::set<std::string> addon_paths;
+	if(!user_game)
+		addon_paths.insert(share_server + DIR_DELIM + "addons"
+				+ DIR_DELIM + id);
+	addon_paths.insert(user_server + DIR_DELIM + "addons"
+			+ DIR_DELIM + id);
+	return SubgameSpec(id, game_path, addon_paths);
+}
+
+std::set<std::string> getAvailableGameIds()
+{
+	std::set<std::string> gameids;
+	std::set<std::string> gamespaths;
+	gamespaths.insert(porting::path_share + DIR_DELIM + "server"
+			+ DIR_DELIM + "games");
+	gamespaths.insert(porting::path_user + DIR_DELIM + "server"
+			+ DIR_DELIM + "games");
+	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;
+			gameids.insert(dirlist[j].name);
+		}
+	}
+	return gameids;
+}
+
+std::string getWorldGameId(const std::string &world_path)
+{
+	std::string conf_path = world_path + DIR_DELIM + "world.mt";
+	Settings conf;
+	bool succeeded = conf.readConfigFile(conf_path.c_str());
+	if(!succeeded)
+		return "";
+	if(!conf.exists("gameid"))
+		return "";
+	return conf.get("gameid");
+}
+
diff --git a/src/subgame.h b/src/subgame.h
new file mode 100644
index 000000000..ba2f235ed
--- /dev/null
+++ b/src/subgame.h
@@ -0,0 +1,53 @@
+/*
+Minetest-c55
+Copyright (C) 2011 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 General Public License as published by
+the Free Software Foundation; either version 2 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 General Public License for more details.
+
+You should have received a copy of the GNU 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 SUBGAME_HEADER
+#define SUBGAME_HEADER
+
+#include <string>
+#include <set>
+
+struct SubgameSpec
+{
+	std::string id; // "" = game does not exist
+	std::string path;
+	std::set<std::string> addon_paths;
+
+	SubgameSpec(const std::string &id_="",
+			const std::string &path_="",
+			const std::set<std::string> &addon_paths_=std::set<std::string>()):
+		id(id_),
+		path(path_),
+		addon_paths(addon_paths_)
+	{}
+
+	bool isValid() const
+	{
+		return (id != "" && path != "");
+	}
+};
+
+SubgameSpec findSubgame(const std::string &id);
+
+std::set<std::string> getAvailableGameIds();
+
+std::string getWorldGameId(const std::string &world_path);
+
+#endif
+