]> git.lizzy.rs Git - minetest.git/blobdiff - src/main.cpp
Mgv7: Decrease cliff steepness
[minetest.git] / src / main.cpp
index 6cb9cf98419744493a2b017e440f5925d4dcabd3..72daaef012a0fe1360e7e51384d7fce41823e703 100644 (file)
 /*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2010-2013 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 General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+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.
 */
 
-/*
-=============================== NOTES ==============================
-NOTE: Things starting with TODO are sometimes only suggestions.
-
-NOTE: iostream.imbue(std::locale("C")) is very slow
-NOTE: Global locale is now set at initialization
-
-NOTE: If VBO (EHM_STATIC) is used, remember to explicitly free the
-      hardware buffer (it is not freed automatically)
-
-NOTE: A random to-do list saved here as documentation:
-A list of "active blocks" in which stuff happens. (+=done)
-       + Add a never-resetted game timer to the server
-       + Add a timestamp value to blocks
-       + The simple rule: All blocks near some player are "active"
-       - Do stuff in real time in active blocks
-               + Handle objects
-               - Grow grass, delete leaves without a tree
-               - Spawn some mobs based on some rules
-               - Transform cobble to mossy cobble near water
-               - Run a custom script
-               - ...And all kinds of other dynamic stuff
-       + Keep track of when a block becomes active and becomes inactive
-       + When a block goes inactive:
-               + Store objects statically to block
-               + Store timer value as the timestamp
-       + When a block goes active:
-               + Create active objects out of static objects
-               - Simulate the results of what would have happened if it would have
-                 been active for all the time
-                       - Grow a lot of grass and so on
-       + Initially it is fine to send information about every active object
-         to every player. Eventually it should be modified to only send info
-         about the nearest ones.
-               + This was left to be done by the old system and it sends only the
-                 nearest ones.
-
-NOTE: Seeds in 1260:6c77e7dbfd29:
-5721858502589302589:
-       Spawns you on a small sand island with a surface dungeon
-2983455799928051958:
-       Enormous jungle + a surface dungeon at ~(250,0,0)
-
-Old, wild and random suggestions that probably won't be done:
--------------------------------------------------------------
-
-SUGG: If player is on ground, mainly fetch ground-level blocks
-
-SUGG: Expose Connection's seqnums and ACKs to server and client.
-      - This enables saving many packets and making a faster connection
-         - This also enables server to check if client has received the
-           most recent block sent, for example.
-SUGG: Add a sane bandwidth throttling system to Connection
-
-SUGG: More fine-grained control of client's dumping of blocks from
-      memory
-         - ...What does this mean in the first place?
-
-SUGG: A map editing mode (similar to dedicated server mode)
-
-SUGG: Transfer more blocks in a single packet
-SUGG: A blockdata combiner class, to which blocks are added and at
-      destruction it sends all the stuff in as few packets as possible.
-SUGG: Make a PACKET_COMBINED which contains many subpackets. Utilize
-      it by sending more stuff in a single packet.
-         - Add a packet queue to RemoteClient, from which packets will be
-           combined with object data packets
-               - This is not exactly trivial: the object data packets are
-                 sometimes very big by themselves
-         - This might not give much network performance gain though.
-
-SUGG: Precalculate lighting translation table at runtime (at startup)
-      - This is not doable because it is currently hand-made and not
-           based on some mathematical function.
-               - Note: This has been changing lately
-
-SUGG: A version number to blocks, which increments when the block is
-      modified (node add/remove, water update, lighting update)
-         - This can then be used to make sure the most recent version of
-           a block has been sent to client, for example
-
-SUGG: Make the amount of blocks sending to client and the total
-         amount of blocks dynamically limited. Transferring blocks is the
-         main network eater of this system, so it is the one that has
-         to be throttled so that RTTs stay low.
-
-SUGG: Meshes of blocks could be split into 6 meshes facing into
-      different directions and then only those drawn that need to be
-
-SUGG: Background music based on cellular automata?
-      http://www.earslap.com/projectslab/otomata
-
-SUGG: Simple light color information to air
-
-SUGG: Server-side objects could be moved based on nodes to enable very
-      lightweight operation and simple AI
-       - Not practical; client would still need to show smooth movement.
-
-SUGG: Make a system for pregenerating quick information for mapblocks, so
-         that the client can show them as cubes before they are actually sent
-         or even generated.
-
-SUGG: Erosion simulation at map generation time
-    - This might be plausible if larger areas of map were pregenerated
-         without lighting (which is slow)
-       - Simulate water flows, which would carve out dirt fast and
-         then turn stone into gravel and sand and relocate it.
-       - How about relocating minerals, too? Coal and gold in
-         downstream sand and gravel would be kind of cool
-         - This would need a better way of handling minerals, mainly
-               to have mineral content as a separate field. the first
-               parameter field is free for this.
-       - Simulate rock falling from cliffs when water has removed
-         enough solid rock from the bottom
-
-SUGG: For non-mapgen FarMesh: Add a per-sector database to store surface
-      stuff as simple flags/values
-      - Light?
-         - A building?
-         And at some point make the server send this data to the client too,
-         instead of referring to the noise functions
-         - Ground height
-         - Surface ground type
-         - Trees?
-
-Gaming ideas:
--------------
-
-- Aim for something like controlling a single dwarf in Dwarf Fortress
-- The player could go faster by a crafting a boat, or riding an animal
-- Random NPC traders. what else?
-
-Game content:
--------------
-
-- When furnace is destroyed, move items to player's inventory
-- Add lots of stuff
-- Glass blocks
-- Growing grass, decaying leaves
-       - This can be done in the active blocks I guess.
-       - Lots of stuff can be done in the active blocks.
-       - Uh, is there an active block list somewhere? I think not. Add it.
-- Breaking weak structures
-       - This can probably be accomplished in the same way as grass
-- Player health points
-       - When player dies, throw items on map (needs better item-on-map
-         implementation)
-- Cobble to get mossy if near water
-- More slots in furnace source list, so that multiple ingredients
-  are possible.
-- Keys to chests?
-
-- The Treasure Guard; a big monster with a hammer
-       - The hammer does great damage, shakes the ground and removes a block
-       - You can drop on top of it, and have some time to attack there
-         before he shakes you off
-
-- Maybe the difficulty could come from monsters getting tougher in
-  far-away places, and the player starting to need something from
-  there when time goes by.
-  - The player would have some of that stuff at the beginning, and
-    would need new supplies of it when it runs out
-
-- A bomb
-- A spread-items-on-map routine for the bomb, and for dying players
-
-- Fighting:
-  - Proper sword swing simulation
-  - Player should get damage from colliding to a wall at high speed
-
-Documentation:
---------------
-
-Build system / running:
------------------------
-
-Networking and serialization:
------------------------------
-
-SUGG: Fix address to be ipv6 compatible
+#ifdef _MSC_VER
+       #ifndef SERVER // Dedicated server isn't linked with Irrlicht
+               #pragma comment(lib, "Irrlicht.lib")
+               // This would get rid of the console window
+               //#pragma comment(linker, "/subsystem:windows /ENTRY:mainCRTStartup")
+       #endif
+       #pragma comment(lib, "zlibwapi.lib")
+       #pragma comment(lib, "Shell32.lib")
+#endif
 
-User Interface:
----------------
+#include "irrlicht.h" // createDevice
 
-Graphics:
----------
+#include "mainmenumanager.h"
+#include "irrlichttypes_extrabloated.h"
+#include "debug.h"
+#include "unittest/test.h"
+#include "server.h"
+#include "filesys.h"
+#include "version.h"
+#include "guiMainMenu.h"
+#include "game.h"
+#include "defaultsettings.h"
+#include "gettext.h"
+#include "log.h"
+#include "quicktune.h"
+#include "httpfetch.h"
+#include "guiEngine.h"
+#include "map.h"
+#include "player.h"
+#include "mapsector.h"
+#include "fontengine.h"
+#include "gameparams.h"
+#include "database.h"
+#include "config.h"
+#if USE_CURSES
+       #include "terminal_chat_console.h"
+#endif
+#ifndef SERVER
+#include "client/clientlauncher.h"
+#endif
 
-SUGG: Combine MapBlock's face caches to so big pieces that VBO
-      can be used
-      - That is >500 vertices
-         - This is not easy; all the MapBlocks close to the player would
-           still need to be drawn separately and combining the blocks
-               would have to happen in a background thread
+#ifdef HAVE_TOUCHSCREENGUI
+       #include "touchscreengui.h"
+#endif
 
-SUGG: Make fetching sector's blocks more efficient when rendering
-      sectors that have very large amounts of blocks (on client)
-         - Is this necessary at all?
+#if !defined(SERVER) && \
+       (IRRLICHT_VERSION_MAJOR == 1) && \
+       (IRRLICHT_VERSION_MINOR == 8) && \
+       (IRRLICHT_VERSION_REVISION == 2)
+       #error "Irrlicht 1.8.2 is known to be broken - please update Irrlicht to version >= 1.8.3"
+#endif
 
-SUGG: Draw cubes in inventory directly with 3D drawing commands, so that
-      animating them is easier.
+#define DEBUGFILE "debug.txt"
+#define DEFAULT_SERVER_PORT 30000
 
-SUGG: Option for enabling proper alpha channel for textures
+typedef std::map<std::string, ValueSpec> OptionList;
 
-TODO: Flowing water animation
+/**********************************************************************
+ * Private functions
+ **********************************************************************/
 
-TODO: A setting for enabling bilinear filtering for textures
+static bool get_cmdline_opts(int argc, char *argv[], Settings *cmd_args);
+static void set_allowed_options(OptionList *allowed_options);
 
-TODO: Better control of draw_control.wanted_max_blocks
+static void print_help(const OptionList &allowed_options);
+static void print_allowed_options(const OptionList &allowed_options);
+static void print_version();
+static void print_worldspecs(const std::vector<WorldSpec> &worldspecs,
+                                                        std::ostream &os);
+static void print_modified_quicktune_values();
 
-TODO: Further investigate the use of GPU lighting in addition to the
-      current one
+static void list_game_ids();
+static void list_worlds();
+static void setup_log_params(const Settings &cmd_args);
+static bool create_userdata_path();
+static bool init_common(const Settings &cmd_args, int argc, char *argv[]);
+static void startup_message();
+static bool read_config_file(const Settings &cmd_args);
+static void init_log_streams(const Settings &cmd_args);
 
-TODO: Artificial (night) light could be more yellow colored than sunlight.
-      - This is technically doable.
-         - Also the actual colors of the textures could be made less colorful
-           in the dark but it's a bit more difficult.
+static bool game_configure(GameParams *game_params, const Settings &cmd_args);
+static void game_configure_port(GameParams *game_params, const Settings &cmd_args);
 
-SUGG: Somehow make the night less colorful
+static bool game_configure_world(GameParams *game_params, const Settings &cmd_args);
+static bool get_world_from_cmdline(GameParams *game_params, const Settings &cmd_args);
+static bool get_world_from_config(GameParams *game_params, const Settings &cmd_args);
+static bool auto_select_world(GameParams *game_params);
+static std::string get_clean_world_path(const std::string &path);
 
-TODO: Occlusion culling
-      - At the same time, move some of the renderMap() block choosing code
-        to the same place as where the new culling happens.
-      - Shoot some rays per frame and when ready, make a new list of
-           blocks for usage of renderMap and give it a new pointer to it.
+static bool game_configure_subgame(GameParams *game_params, const Settings &cmd_args);
+static bool get_game_from_cmdline(GameParams *game_params, const Settings &cmd_args);
+static bool determine_subgame(GameParams *game_params);
 
-Configuration:
---------------
+static bool run_dedicated_server(const GameParams &game_params, const Settings &cmd_args);
+static bool migrate_database(const GameParams &game_params, const Settings &cmd_args);
 
-Client:
--------
+/**********************************************************************/
 
-TODO: Untie client network operations from framerate
-      - Needs some input queues or something
-         - This won't give much performance boost because calculating block
-           meshes takes so long
+/*
+       gettime.h implementation
+*/
 
-SUGG: Make morning and evening transition more smooth and maybe shorter
+#ifdef SERVER
 
-TODO: Don't update all meshes always on single node changes, but
-      check which ones should be updated
-         - implement Map::updateNodeMeshes() and the usage of it
-         - It will give almost always a 4x boost in mesh update performance.
+u32 getTimeMs()
+{
+       /* Use imprecise system calls directly (from porting.h) */
+       return porting::getTime(PRECISION_MILLI);
+}
 
-- A weapon engine
+u32 getTime(TimePrecision prec)
+{
+       return porting::getTime(prec);
+}
 
-- Tool/weapon visualization
+#endif
 
-FIXME: When disconnected to the menu, memory is not freed properly
+FileLogOutput file_log_output;
 
-TODO: Investigate how much the mesh generator thread gets used when
-      transferring map data
+static OptionList allowed_options;
 
-Server:
--------
+int main(int argc, char *argv[])
+{
+       int retval;
 
-SUGG: Make an option to the server to disable building and digging near
-      the starting position
+       debug_set_exception_handler();
 
-FIXME: Server sometimes goes into some infinite PeerNotFoundException loop
+       g_logger.registerThread("Main");
+       g_logger.addOutputMaxLevel(&stderr_output, LL_ACTION);
 
-* Fix the problem with the server constantly saving one or a few
-  blocks? List the first saved block, maybe it explains.
-  - It is probably caused by oscillating water
-  - TODO: Investigate if this still happens (this is a very old one)
-* Make a small history check to transformLiquids to detect and log
-  continuous oscillations, in such detail that they can be fixed.
+       Settings cmd_args;
+       bool cmd_args_ok = get_cmdline_opts(argc, argv, &cmd_args);
+       if (!cmd_args_ok
+                       || cmd_args.getFlag("help")
+                       || cmd_args.exists("nonopt1")) {
+               print_help(allowed_options);
+               return cmd_args_ok ? 0 : 1;
+       }
 
-FIXME: The new optimized map sending doesn't sometimes send enough blocks
-       from big caves and such
-FIXME: Block send distance configuration does not take effect for some reason
+       if (cmd_args.getFlag("version")) {
+               print_version();
+               return 0;
+       }
 
-Environment:
-------------
+       setup_log_params(cmd_args);
 
-TODO: Add proper hooks to when adding and removing active blocks
+       porting::signal_handler_init();
 
-TODO: Finish the ActiveBlockModifier stuff and use it for something
+#ifdef __ANDROID__
+       porting::initAndroid();
+       porting::initializePathsAndroid();
+#else
+       porting::initializePaths();
+#endif
 
-Objects:
---------
+       if (!create_userdata_path()) {
+               errorstream << "Cannot create user data directory" << std::endl;
+               return 1;
+       }
 
-TODO: Get rid of MapBlockObjects and use only ActiveObjects
-       - Skipping the MapBlockObject data is nasty - there is no "total
-         length" stored; have to make a SkipMBOs function which contains
-         enough of the current code to skip them properly.
+       // Initialize debug stacks
+       DSTACK(FUNCTION_NAME);
 
-SUGG: MovingObject::move and Player::move are basically the same.
-      combine them.
-       - NOTE: This is a bit tricky because player has the sneaking ability
-       - NOTE: Player::move is more up-to-date.
-       - NOTE: There is a simple move implementation now in collision.{h,cpp}
-       - NOTE: MovingObject will be deleted (MapBlockObject)
+       // Debug handler
+       BEGIN_DEBUG_EXCEPTION_HANDLER
 
-TODO: Add a long step function to objects that is called with the time
-      difference when block activates
+       // List gameids if requested
+       if (cmd_args.exists("gameid") && cmd_args.get("gameid") == "list") {
+               list_game_ids();
+               return 0;
+       }
 
-Map:
-----
+       // List worlds if requested
+       if (cmd_args.exists("world") && cmd_args.get("world") == "list") {
+               list_worlds();
+               return 0;
+       }
 
-TODO: Flowing water to actually contain flow direction information
-      - There is a space for this - it just has to be implemented.
+       if (!init_common(cmd_args, argc, argv))
+               return 1;
 
-TODO: Consider smoothening cave floors after generating them
+#ifndef __ANDROID__
+       // Run unit tests
+       if (cmd_args.getFlag("run-unittests")) {
+               return run_tests();
+       }
+#endif
 
-TODO: Fix make_tree, make_* to use seed-position-consistent pseudorandom
-         - delta also
+       GameParams game_params;
+#ifdef SERVER
+       game_params.is_dedicated_server = true;
+#else
+       game_params.is_dedicated_server = cmd_args.getFlag("server");
+#endif
 
-Misc. stuff:
-------------
-TODO: Make sure server handles removing grass when a block is placed (etc)
-      - The client should not do it by itself
-         - NOTE: I think nobody does it currently...
-TODO: Block cube placement around player's head
-TODO: Protocol version field
-TODO: Think about using same bits for material for fences and doors, for
-         example
+       if (!game_configure(&game_params, cmd_args))
+               return 1;
 
-SUGG: Restart irrlicht completely when coming back to main menu from game.
-       - This gets rid of everything that is stored in irrlicht's caches.
-       - This might be needed for texture pack selection in menu
+       sanity_check(!game_params.world_path.empty());
 
-TODO: Merge bahamada's audio stuff (clean patch available)
+       infostream << "Using commanded world path ["
+                  << game_params.world_path << "]" << std::endl;
 
-Making it more portable:
-------------------------
-Stuff to do before release:
----------------------------
+       //Run dedicated server if asked to or no other option
+       g_settings->set("server_dedicated",
+                       game_params.is_dedicated_server ? "true" : "false");
 
-Fixes to the current release:
------------------------------
+       if (game_params.is_dedicated_server)
+               return run_dedicated_server(game_params, cmd_args) ? 0 : 1;
 
-Stuff to do after release:
----------------------------
+#ifndef SERVER
+       ClientLauncher launcher;
+       retval = launcher.run(game_params, cmd_args) ? 0 : 1;
+#else
+       retval = 0;
+#endif
 
-Doing currently:
-----------------
+       // Update configuration file
+       if (g_settings_path != "")
+               g_settings->updateConfigFile(g_settings_path.c_str());
 
-======================================================================
+       print_modified_quicktune_values();
 
-*/
+       // Stop httpfetch thread (if started)
+       httpfetch_cleanup();
 
-#ifdef NDEBUG
-       /*#ifdef _WIN32
-               #pragma message ("Disabling unit tests")
-       #else
-               #warning "Disabling unit tests"
-       #endif*/
-       // Disable unit tests
-       #define ENABLE_TESTS 0
-#else
-       // Enable unit tests
-       #define ENABLE_TESTS 1
-#endif
+       END_DEBUG_EXCEPTION_HANDLER
 
-#ifdef _MSC_VER
-       #pragma comment(lib, "Irrlicht.lib")
-       //#pragma comment(lib, "jthread.lib")
-       #pragma comment(lib, "zlibwapi.lib")
-       #pragma comment(lib, "Shell32.lib")
-       // This would get rid of the console window
-       //#pragma comment(linker, "/subsystem:windows /ENTRY:mainCRTStartup")
-#endif
+       return retval;
+}
 
-#include "irrlicht.h" // createDevice
 
-#include "main.h"
-#include "mainmenumanager.h"
-#include <iostream>
-#include <fstream>
-#include <locale.h>
-#include "common_irrlicht.h"
-#include "debug.h"
-#include "test.h"
-#include "server.h"
-#include "constants.h"
-#include "porting.h"
-#include "gettime.h"
-#include "guiMessageMenu.h"
-#include "filesys.h"
-#include "config.h"
-#include "guiMainMenu.h"
-#include "materials.h"
-#include "game.h"
-#include "keycode.h"
-#include "tile.h"
-#include "defaultsettings.h"
-#include "gettext.h"
-#include "settings.h"
-#include "profiler.h"
-#include "log.h"
-#include "mods.h"
+/*****************************************************************************
+ * Startup / Init
+ *****************************************************************************/
 
-/*
-       Settings.
-       These are loaded from the config file.
-*/
-Settings main_settings;
-Settings *g_settings = &main_settings;
 
-// Global profiler
-Profiler main_profiler;
-Profiler *g_profiler = &main_profiler;
+static bool get_cmdline_opts(int argc, char *argv[], Settings *cmd_args)
+{
+       set_allowed_options(&allowed_options);
 
-/*
-       Random stuff
-*/
+       return cmd_args->parseCommandLine(argc, argv, allowed_options);
+}
 
-/*
-       mainmenumanager.h
-*/
+static void set_allowed_options(OptionList *allowed_options)
+{
+       allowed_options->clear();
+
+       allowed_options->insert(std::make_pair("help", ValueSpec(VALUETYPE_FLAG,
+                       _("Show allowed options"))));
+       allowed_options->insert(std::make_pair("version", ValueSpec(VALUETYPE_FLAG,
+                       _("Show version information"))));
+       allowed_options->insert(std::make_pair("config", ValueSpec(VALUETYPE_STRING,
+                       _("Load configuration from specified file"))));
+       allowed_options->insert(std::make_pair("port", ValueSpec(VALUETYPE_STRING,
+                       _("Set network port (UDP)"))));
+       allowed_options->insert(std::make_pair("run-unittests", ValueSpec(VALUETYPE_FLAG,
+                       _("Run the unit tests and exit"))));
+       allowed_options->insert(std::make_pair("map-dir", ValueSpec(VALUETYPE_STRING,
+                       _("Same as --world (deprecated)"))));
+       allowed_options->insert(std::make_pair("world", ValueSpec(VALUETYPE_STRING,
+                       _("Set world path (implies local game) ('list' lists all)"))));
+       allowed_options->insert(std::make_pair("worldname", ValueSpec(VALUETYPE_STRING,
+                       _("Set world by name (implies local game)"))));
+       allowed_options->insert(std::make_pair("quiet", ValueSpec(VALUETYPE_FLAG,
+                       _("Print to console errors only"))));
+       allowed_options->insert(std::make_pair("info", ValueSpec(VALUETYPE_FLAG,
+                       _("Print more information to console"))));
+       allowed_options->insert(std::make_pair("verbose",  ValueSpec(VALUETYPE_FLAG,
+                       _("Print even more information to console"))));
+       allowed_options->insert(std::make_pair("trace", ValueSpec(VALUETYPE_FLAG,
+                       _("Print enormous amounts of information to log and console"))));
+       allowed_options->insert(std::make_pair("logfile", ValueSpec(VALUETYPE_STRING,
+                       _("Set logfile path ('' = no logging)"))));
+       allowed_options->insert(std::make_pair("gameid", ValueSpec(VALUETYPE_STRING,
+                       _("Set gameid (\"--gameid list\" prints available ones)"))));
+       allowed_options->insert(std::make_pair("migrate", ValueSpec(VALUETYPE_STRING,
+                       _("Migrate from current map backend to another (Only works when using minetestserver or with --server)"))));
+       allowed_options->insert(std::make_pair("terminal", ValueSpec(VALUETYPE_FLAG,
+                       _("Feature an interactive terminal (Only works when using minetestserver or with --server)"))));
+#ifndef SERVER
+       allowed_options->insert(std::make_pair("videomodes", ValueSpec(VALUETYPE_FLAG,
+                       _("Show available video modes"))));
+       allowed_options->insert(std::make_pair("speedtests", ValueSpec(VALUETYPE_FLAG,
+                       _("Run speed tests"))));
+       allowed_options->insert(std::make_pair("address", ValueSpec(VALUETYPE_STRING,
+                       _("Address to connect to. ('' = local game)"))));
+       allowed_options->insert(std::make_pair("random-input", ValueSpec(VALUETYPE_FLAG,
+                       _("Enable random user input, for testing"))));
+       allowed_options->insert(std::make_pair("server", ValueSpec(VALUETYPE_FLAG,
+                       _("Run dedicated server"))));
+       allowed_options->insert(std::make_pair("name", ValueSpec(VALUETYPE_STRING,
+                       _("Set player name"))));
+       allowed_options->insert(std::make_pair("password", ValueSpec(VALUETYPE_STRING,
+                       _("Set password"))));
+       allowed_options->insert(std::make_pair("go", ValueSpec(VALUETYPE_FLAG,
+                       _("Disable main menu"))));
+#endif
 
-gui::IGUIEnvironment* guienv = NULL;
-gui::IGUIStaticText *guiroot = NULL;
-MainMenuManager g_menumgr;
+}
 
-bool noMenuActive()
+static void print_help(const OptionList &allowed_options)
 {
-       return (g_menumgr.menuCount() == 0);
+       std::cout << _("Allowed options:") << std::endl;
+       print_allowed_options(allowed_options);
 }
 
-// Passed to menus to allow disconnecting and exiting
-MainGameCallback *g_gamecallback = NULL;
+static void print_allowed_options(const OptionList &allowed_options)
+{
+       for (OptionList::const_iterator i = allowed_options.begin();
+                       i != allowed_options.end(); ++i) {
+               std::ostringstream os1(std::ios::binary);
+               os1 << "  --" << i->first;
+               if (i->second.type != VALUETYPE_FLAG)
+                       os1 << _(" <value>");
 
-/*
-       Debug streams
-*/
+               std::cout << padStringRight(os1.str(), 24);
 
-// Connection
-std::ostream *dout_con_ptr = &dummyout;
-std::ostream *derr_con_ptr = &verbosestream;
-//std::ostream *dout_con_ptr = &infostream;
-//std::ostream *derr_con_ptr = &errorstream;
+               if (i->second.help != NULL)
+                       std::cout << i->second.help;
 
-// Server
-std::ostream *dout_server_ptr = &infostream;
-std::ostream *derr_server_ptr = &errorstream;
+               std::cout << std::endl;
+       }
+}
 
-// Client
-std::ostream *dout_client_ptr = &infostream;
-std::ostream *derr_client_ptr = &errorstream;
+static void print_version()
+{
+       std::cout << PROJECT_NAME_C " " << g_version_hash << std::endl;
+#ifndef SERVER
+       std::cout << "Using Irrlicht " << IRRLICHT_SDK_VERSION << std::endl;
+#endif
+       std::cout << "Build info: " << g_build_info << std::endl;
+}
 
-/*
-       gettime.h implementation
-*/
+static void list_game_ids()
+{
+       std::set<std::string> gameids = getAvailableGameIds();
+       for (std::set<std::string>::const_iterator i = gameids.begin();
+                       i != gameids.end(); ++i)
+               std::cout << (*i) <<std::endl;
+}
+
+static void list_worlds()
+{
+       std::cout << _("Available worlds:") << std::endl;
+       std::vector<WorldSpec> worldspecs = getAvailableWorlds();
+       print_worldspecs(worldspecs, std::cout);
+}
 
-// A small helper class
-class TimeGetter
+static void print_worldspecs(const std::vector<WorldSpec> &worldspecs,
+                                                        std::ostream &os)
 {
-public:
-       virtual u32 getTime() = 0;
-};
+       for (size_t i = 0; i < worldspecs.size(); i++) {
+               std::string name = worldspecs[i].name;
+               std::string path = worldspecs[i].path;
+               if (name.find(" ") != std::string::npos)
+                       name = std::string("'") + name + "'";
+               path = std::string("'") + path + "'";
+               name = padStringRight(name, 14);
+               os << "  " << name << " " << path << std::endl;
+       }
+}
 
-// A precise irrlicht one
-class IrrlichtTimeGetter: public TimeGetter
+static void print_modified_quicktune_values()
 {
-public:
-       IrrlichtTimeGetter(IrrlichtDevice *device):
-               m_device(device)
-       {}
-       u32 getTime()
-       {
-               if(m_device == NULL)
-                       return 0;
-               return m_device->getTimer()->getRealTime();
+       bool header_printed = false;
+       std::vector<std::string> names = getQuicktuneNames();
+
+       for (u32 i = 0; i < names.size(); i++) {
+               QuicktuneValue val = getQuicktuneValue(names[i]);
+               if (!val.modified)
+                       continue;
+               if (!header_printed) {
+                       dstream << "Modified quicktune values:" << std::endl;
+                       header_printed = true;
+               }
+               dstream << names[i] << " = " << val.getString() << std::endl;
        }
-private:
-       IrrlichtDevice *m_device;
-};
-// Not so precise one which works without irrlicht
-class SimpleTimeGetter: public TimeGetter
+}
+
+static void setup_log_params(const Settings &cmd_args)
 {
-public:
-       u32 getTime()
-       {
-               return porting::getTimeMs();
+       // Quiet mode, print errors only
+       if (cmd_args.getFlag("quiet")) {
+               g_logger.removeOutput(&stderr_output);
+               g_logger.addOutputMaxLevel(&stderr_output, LL_ERROR);
        }
-};
 
-// A pointer to a global instance of the time getter
-// TODO: why?
-TimeGetter *g_timegetter = NULL;
+       // If trace is enabled, enable logging of certain things
+       if (cmd_args.getFlag("trace")) {
+               dstream << _("Enabling trace level debug output") << std::endl;
+               g_logger.setTraceEnabled(true);
+               dout_con_ptr = &verbosestream; // This is somewhat old
+               socket_enable_debug_output = true; // Sockets doesn't use log.h
+       }
 
-u32 getTimeMs()
+       // In certain cases, output info level on stderr
+       if (cmd_args.getFlag("info") || cmd_args.getFlag("verbose") ||
+                       cmd_args.getFlag("trace") || cmd_args.getFlag("speedtests"))
+               g_logger.addOutput(&stderr_output, LL_INFO);
+
+       // In certain cases, output verbose level on stderr
+       if (cmd_args.getFlag("verbose") || cmd_args.getFlag("trace"))
+               g_logger.addOutput(&stderr_output, LL_VERBOSE);
+}
+
+static bool create_userdata_path()
 {
-       if(g_timegetter == NULL)
-               return 0;
-       return g_timegetter->getTime();
+       bool success;
+
+#ifdef __ANDROID__
+       if (!fs::PathExists(porting::path_user)) {
+               success = fs::CreateDir(porting::path_user);
+       } else {
+               success = true;
+       }
+       porting::copyAssets();
+#else
+       // Create user data directory
+       success = fs::CreateDir(porting::path_user);
+#endif
+
+       return success;
 }
 
-/*
-       Event handler for Irrlicht
+static bool init_common(const Settings &cmd_args, int argc, char *argv[])
+{
+       startup_message();
+       set_default_settings(g_settings);
 
-       NOTE: Everything possible should be moved out from here,
-             probably to InputHandler and the_game
-*/
+       // Initialize sockets
+       sockets_init();
+       atexit(sockets_cleanup);
 
-class MyEventReceiver : public IEventReceiver
+       if (!read_config_file(cmd_args))
+               return false;
+
+       init_log_streams(cmd_args);
+
+       // Initialize random seed
+       srand(time(0));
+       mysrand(time(0));
+
+       // Initialize HTTP fetcher
+       httpfetch_init(g_settings->getS32("curl_parallel_limit"));
+
+       init_gettext(porting::path_locale.c_str(),
+               g_settings->get("language"), argc, argv);
+
+       return true;
+}
+
+static void startup_message()
 {
-public:
-       // This is the one method that we have to implement
-       virtual bool OnEvent(const SEvent& event)
-       {
-               /*
-                       React to nothing here if a menu is active
-               */
-               if(noMenuActive() == false)
-               {
+       infostream << PROJECT_NAME << " " << _("with")
+                  << " SER_FMT_VER_HIGHEST_READ="
+               << (int)SER_FMT_VER_HIGHEST_READ << ", "
+               << g_build_info << std::endl;
+}
+
+static bool read_config_file(const Settings &cmd_args)
+{
+       // Path of configuration file in use
+       sanity_check(g_settings_path == "");    // Sanity check
+
+       if (cmd_args.exists("config")) {
+               bool r = g_settings->readConfigFile(cmd_args.get("config").c_str());
+               if (!r) {
+                       errorstream << "Could not read configuration from \""
+                                   << cmd_args.get("config") << "\"" << std::endl;
                        return false;
                }
+               g_settings_path = cmd_args.get("config");
+       } else {
+               std::vector<std::string> filenames;
+               filenames.push_back(porting::path_user + DIR_DELIM + "minetest.conf");
+               // Legacy configuration file location
+               filenames.push_back(porting::path_user +
+                               DIR_DELIM + ".." + DIR_DELIM + "minetest.conf");
 
-               // Remember whether each key is down or up
-               if(event.EventType == irr::EET_KEY_INPUT_EVENT)
-               {
-                       if(event.KeyInput.PressedDown) {
-                               keyIsDown.set(event.KeyInput);
-                               keyWasDown.set(event.KeyInput);
-                       } else {
-                               keyIsDown.unset(event.KeyInput);
-                       }
-               }
+#if RUN_IN_PLACE
+               // Try also from a lower level (to aid having the same configuration
+               // for many RUN_IN_PLACE installs)
+               filenames.push_back(porting::path_user +
+                               DIR_DELIM + ".." + DIR_DELIM + ".." + DIR_DELIM + "minetest.conf");
+#endif
 
-               if(event.EventType == irr::EET_MOUSE_INPUT_EVENT)
-               {
-                       if(noMenuActive() == false)
-                       {
-                               left_active = false;
-                               middle_active = false;
-                               right_active = false;
-                       }
-                       else
-                       {
-                               left_active = event.MouseInput.isLeftPressed();
-                               middle_active = event.MouseInput.isMiddlePressed();
-                               right_active = event.MouseInput.isRightPressed();
-
-                               if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
-                               {
-                                       leftclicked = true;
-                               }
-                               if(event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
-                               {
-                                       rightclicked = true;
-                               }
-                               if(event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
-                               {
-                                       leftreleased = true;
-                               }
-                               if(event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
-                               {
-                                       rightreleased = true;
-                               }
-                               if(event.MouseInput.Event == EMIE_MOUSE_WHEEL)
-                               {
-                                       mouse_wheel += event.MouseInput.Wheel;
-                               }
+               for (size_t i = 0; i < filenames.size(); i++) {
+                       bool r = g_settings->readConfigFile(filenames[i].c_str());
+                       if (r) {
+                               g_settings_path = filenames[i];
+                               break;
                        }
                }
 
-               return false;
+               // If no path found, use the first one (menu creates the file)
+               if (g_settings_path == "")
+                       g_settings_path = filenames[0];
        }
 
-       bool IsKeyDown(const KeyPress &keyCode) const
-       {
-               return keyIsDown[keyCode];
-       }
-       
-       // Checks whether a key was down and resets the state
-       bool WasKeyDown(const KeyPress &keyCode)
-       {
-               bool b = keyWasDown[keyCode];
-               if (b)
-                       keyWasDown.unset(keyCode);
-               return b;
+       return true;
+}
+
+static void init_log_streams(const Settings &cmd_args)
+{
+#if RUN_IN_PLACE
+       std::string log_filename = DEBUGFILE;
+#else
+       std::string log_filename = porting::path_user + DIR_DELIM + DEBUGFILE;
+#endif
+       if (cmd_args.exists("logfile"))
+               log_filename = cmd_args.get("logfile");
+
+       g_logger.removeOutput(&file_log_output);
+       std::string conf_loglev = g_settings->get("debug_log_level");
+
+       // Old integer format
+       if (std::isdigit(conf_loglev[0])) {
+               warningstream << "Deprecated use of debug_log_level with an "
+                       "integer value; please update your configuration." << std::endl;
+               static const char *lev_name[] =
+                       {"", "error", "action", "info", "verbose"};
+               int lev_i = atoi(conf_loglev.c_str());
+               if (lev_i < 0 || lev_i >= (int)ARRLEN(lev_name)) {
+                       warningstream << "Supplied invalid debug_log_level!"
+                               "  Assuming action level." << std::endl;
+                       lev_i = 2;
+               }
+               conf_loglev = lev_name[lev_i];
        }
 
-       s32 getMouseWheel()
-       {
-               s32 a = mouse_wheel;
-               mouse_wheel = 0;
-               return a;
+       if (log_filename.empty() || conf_loglev.empty())  // No logging
+               return;
+
+       LogLevel log_level = Logger::stringToLevel(conf_loglev);
+       if (log_level == LL_MAX) {
+               warningstream << "Supplied unrecognized debug_log_level; "
+                       "using maximum." << std::endl;
        }
 
-       void clearInput()
-       {
-               keyIsDown.clear();
-               keyWasDown.clear();
+       verbosestream << "log_filename = " << log_filename << std::endl;
 
-               leftclicked = false;
-               rightclicked = false;
-               leftreleased = false;
-               rightreleased = false;
+       file_log_output.open(log_filename.c_str());
+       g_logger.addOutputMaxLevel(&file_log_output, log_level);
+}
 
-               left_active = false;
-               middle_active = false;
-               right_active = false;
+static bool game_configure(GameParams *game_params, const Settings &cmd_args)
+{
+       game_configure_port(game_params, cmd_args);
 
-               mouse_wheel = 0;
+       if (!game_configure_world(game_params, cmd_args)) {
+               errorstream << "No world path specified or found." << std::endl;
+               return false;
        }
 
-       MyEventReceiver()
-       {
-               clearInput();
-       }
+       game_configure_subgame(game_params, cmd_args);
 
-       bool leftclicked;
-       bool rightclicked;
-       bool leftreleased;
-       bool rightreleased;
+       return true;
+}
 
-       bool left_active;
-       bool middle_active;
-       bool right_active;
+static void game_configure_port(GameParams *game_params, const Settings &cmd_args)
+{
+       if (cmd_args.exists("port"))
+               game_params->socket_port = cmd_args.getU16("port");
+       else
+               game_params->socket_port = g_settings->getU16("port");
 
-       s32 mouse_wheel;
+       if (game_params->socket_port == 0)
+               game_params->socket_port = DEFAULT_SERVER_PORT;
+}
 
-private:
-       IrrlichtDevice *m_device;
-       
-       // The current state of keys
-       KeyList keyIsDown;
-       // Whether a key has been pressed or not
-       KeyList keyWasDown;
-};
+static bool game_configure_world(GameParams *game_params, const Settings &cmd_args)
+{
+       if (get_world_from_cmdline(game_params, cmd_args))
+               return true;
+       if (get_world_from_config(game_params, cmd_args))
+               return true;
 
-/*
-       Separated input handler
-*/
+       return auto_select_world(game_params);
+}
 
-class RealInputHandler : public InputHandler
+static bool get_world_from_cmdline(GameParams *game_params, const Settings &cmd_args)
 {
-public:
-       RealInputHandler(IrrlichtDevice *device, MyEventReceiver *receiver):
-               m_device(device),
-               m_receiver(receiver)
-       {
-       }
-       virtual bool isKeyDown(const KeyPress &keyCode)
-       {
-               return m_receiver->IsKeyDown(keyCode);
-       }
-       virtual bool wasKeyDown(const KeyPress &keyCode)
-       {
-               return m_receiver->WasKeyDown(keyCode);
-       }
-       virtual v2s32 getMousePos()
-       {
-               return m_device->getCursorControl()->getPosition();
-       }
-       virtual void setMousePos(s32 x, s32 y)
-       {
-               m_device->getCursorControl()->setPosition(x, y);
-       }
+       std::string commanded_world = "";
+
+       // World name
+       std::string commanded_worldname = "";
+       if (cmd_args.exists("worldname"))
+               commanded_worldname = cmd_args.get("worldname");
+
+       // If a world name was specified, convert it to a path
+       if (commanded_worldname != "") {
+               // Get information about available worlds
+               std::vector<WorldSpec> worldspecs = getAvailableWorlds();
+               bool found = false;
+               for (u32 i = 0; i < worldspecs.size(); i++) {
+                       std::string name = worldspecs[i].name;
+                       if (name == commanded_worldname) {
+                               dstream << _("Using world specified by --worldname on the "
+                                       "command line") << std::endl;
+                               commanded_world = worldspecs[i].path;
+                               found = true;
+                               break;
+                       }
+               }
+               if (!found) {
+                       dstream << _("World") << " '" << commanded_worldname
+                               << _("' not available. Available worlds:") << std::endl;
+                       print_worldspecs(worldspecs, dstream);
+                       return false;
+               }
 
-       virtual bool getLeftState()
-       {
-               return m_receiver->left_active;
-       }
-       virtual bool getRightState()
-       {
-               return m_receiver->right_active;
-       }
-       
-       virtual bool getLeftClicked()
-       {
-               return m_receiver->leftclicked;
-       }
-       virtual bool getRightClicked()
-       {
-               return m_receiver->rightclicked;
-       }
-       virtual void resetLeftClicked()
-       {
-               m_receiver->leftclicked = false;
-       }
-       virtual void resetRightClicked()
-       {
-               m_receiver->rightclicked = false;
+               game_params->world_path = get_clean_world_path(commanded_world);
+               return commanded_world != "";
        }
 
-       virtual bool getLeftReleased()
-       {
-               return m_receiver->leftreleased;
-       }
-       virtual bool getRightReleased()
-       {
-               return m_receiver->rightreleased;
-       }
-       virtual void resetLeftReleased()
-       {
-               m_receiver->leftreleased = false;
-       }
-       virtual void resetRightReleased()
-       {
-               m_receiver->rightreleased = false;
-       }
+       if (cmd_args.exists("world"))
+               commanded_world = cmd_args.get("world");
+       else if (cmd_args.exists("map-dir"))
+               commanded_world = cmd_args.get("map-dir");
+       else if (cmd_args.exists("nonopt0")) // First nameless argument
+               commanded_world = cmd_args.get("nonopt0");
 
-       virtual s32 getMouseWheel()
-       {
-               return m_receiver->getMouseWheel();
-       }
+       game_params->world_path = get_clean_world_path(commanded_world);
+       return commanded_world != "";
+}
 
-       void clear()
-       {
-               m_receiver->clearInput();
-       }
-private:
-       IrrlichtDevice *m_device;
-       MyEventReceiver *m_receiver;
-};
+static bool get_world_from_config(GameParams *game_params, const Settings &cmd_args)
+{
+       // World directory
+       std::string commanded_world = "";
+
+       if (g_settings->exists("map-dir"))
+               commanded_world = g_settings->get("map-dir");
+
+       game_params->world_path = get_clean_world_path(commanded_world);
+
+       return commanded_world != "";
+}
 
-class RandomInputHandler : public InputHandler
+static bool auto_select_world(GameParams *game_params)
 {
-public:
-       RandomInputHandler()
-       {
-               leftdown = false;
-               rightdown = false;
-               leftclicked = false;
-               rightclicked = false;
-               leftreleased = false;
-               rightreleased = false;
-               keydown.clear();
-       }
-       virtual bool isKeyDown(const KeyPress &keyCode)
-       {
-               return keydown[keyCode];
-       }
-       virtual bool wasKeyDown(const KeyPress &keyCode)
-       {
+       // No world was specified; try to select it automatically
+       // Get information about available worlds
+
+       verbosestream << _("Determining world path") << std::endl;
+
+       std::vector<WorldSpec> worldspecs = getAvailableWorlds();
+       std::string world_path;
+
+       // If there is only a single world, use it
+       if (worldspecs.size() == 1) {
+               world_path = worldspecs[0].path;
+               dstream <<_("Automatically selecting world at") << " ["
+                       << world_path << "]" << std::endl;
+       // If there are multiple worlds, list them
+       } else if (worldspecs.size() > 1 && game_params->is_dedicated_server) {
+               std::cerr << _("Multiple worlds are available.") << std::endl;
+               std::cerr << _("Please select one using --worldname <name>"
+                               " or --world <path>") << std::endl;
+               print_worldspecs(worldspecs, std::cerr);
                return false;
-       }
-       virtual v2s32 getMousePos()
-       {
-               return mousepos;
-       }
-       virtual void setMousePos(s32 x, s32 y)
-       {
-               mousepos = v2s32(x,y);
-       }
+       // If there are no worlds, automatically create a new one
+       } else {
+               // This is the ultimate default world path
+               world_path = porting::path_user + DIR_DELIM + "worlds" +
+                               DIR_DELIM + "world";
+               infostream << "Creating default world at ["
+                          << world_path << "]" << std::endl;
+       }
+
+       assert(world_path != "");       // Post-condition
+       game_params->world_path = world_path;
+       return true;
+}
 
-       virtual bool getLeftState()
-       {
-               return leftdown;
-       }
-       virtual bool getRightState()
-       {
-               return rightdown;
-       }
+static std::string get_clean_world_path(const std::string &path)
+{
+       const std::string worldmt = "world.mt";
+       std::string clean_path;
 
-       virtual bool getLeftClicked()
-       {
-               return leftclicked;
-       }
-       virtual bool getRightClicked()
-       {
-               return rightclicked;
-       }
-       virtual void resetLeftClicked()
-       {
-               leftclicked = false;
-       }
-       virtual void resetRightClicked()
-       {
-               rightclicked = false;
+       if (path.size() > worldmt.size()
+                       && path.substr(path.size() - worldmt.size()) == worldmt) {
+               dstream << _("Supplied world.mt file - stripping it off.") << std::endl;
+               clean_path = path.substr(0, path.size() - worldmt.size());
+       } else {
+               clean_path = path;
        }
+       return path;
+}
 
-       virtual bool getLeftReleased()
-       {
-               return leftreleased;
-       }
-       virtual bool getRightReleased()
-       {
-               return rightreleased;
-       }
-       virtual void resetLeftReleased()
-       {
-               leftreleased = false;
-       }
-       virtual void resetRightReleased()
-       {
-               rightreleased = false;
-       }
 
-       virtual s32 getMouseWheel()
-       {
-               return 0;
-       }
+static bool game_configure_subgame(GameParams *game_params, const Settings &cmd_args)
+{
+       bool success;
 
-       virtual void step(float dtime)
-       {
-               {
-                       static float counter1 = 0;
-                       counter1 -= dtime;
-                       if(counter1 < 0.0)
-                       {
-                               counter1 = 0.1*Rand(1, 40);
-                               keydown.toggle(getKeySetting("keymap_jump"));
-                       }
-               }
-               {
-                       static float counter1 = 0;
-                       counter1 -= dtime;
-                       if(counter1 < 0.0)
-                       {
-                               counter1 = 0.1*Rand(1, 40);
-                               keydown.toggle(getKeySetting("keymap_special1"));
-                       }
-               }
-               {
-                       static float counter1 = 0;
-                       counter1 -= dtime;
-                       if(counter1 < 0.0)
-                       {
-                               counter1 = 0.1*Rand(1, 40);
-                               keydown.toggle(getKeySetting("keymap_forward"));
-                       }
-               }
-               {
-                       static float counter1 = 0;
-                       counter1 -= dtime;
-                       if(counter1 < 0.0)
-                       {
-                               counter1 = 0.1*Rand(1, 40);
-                               keydown.toggle(getKeySetting("keymap_left"));
-                       }
-               }
-               {
-                       static float counter1 = 0;
-                       counter1 -= dtime;
-                       if(counter1 < 0.0)
-                       {
-                               counter1 = 0.1*Rand(1, 20);
-                               mousespeed = v2s32(Rand(-20,20), Rand(-15,20));
-                       }
-               }
-               {
-                       static float counter1 = 0;
-                       counter1 -= dtime;
-                       if(counter1 < 0.0)
-                       {
-                               counter1 = 0.1*Rand(1, 30);
-                               leftdown = !leftdown;
-                               if(leftdown)
-                                       leftclicked = true;
-                               if(!leftdown)
-                                       leftreleased = true;
-                       }
-               }
-               {
-                       static float counter1 = 0;
-                       counter1 -= dtime;
-                       if(counter1 < 0.0)
-                       {
-                               counter1 = 0.1*Rand(1, 15);
-                               rightdown = !rightdown;
-                               if(rightdown)
-                                       rightclicked = true;
-                               if(!rightdown)
-                                       rightreleased = true;
-                       }
-               }
-               mousepos += mousespeed;
-       }
+       success = get_game_from_cmdline(game_params, cmd_args);
+       if (!success)
+               success = determine_subgame(game_params);
 
-       s32 Rand(s32 min, s32 max)
-       {
-               return (myrand()%(max-min+1))+min;
-       }
-private:
-       KeyList keydown;
-       v2s32 mousepos;
-       v2s32 mousespeed;
-       bool leftdown;
-       bool rightdown;
-       bool leftclicked;
-       bool rightclicked;
-       bool leftreleased;
-       bool rightreleased;
-};
-
-// These are defined global so that they're not optimized too much.
-// Can't change them to volatile.
-s16 temp16;
-f32 tempf;
-v3f tempv3f1;
-v3f tempv3f2;
-std::string tempstring;
-std::string tempstring2;
-
-void SpeedTests()
+       return success;
+}
+
+static bool get_game_from_cmdline(GameParams *game_params, const Settings &cmd_args)
 {
-       {
-               dstream<<"The following test should take around 20ms."<<std::endl;
-               TimeTaker timer("Testing std::string speed");
-               const u32 jj = 10000;
-               for(u32 j=0; j<jj; j++)
-               {
-                       tempstring = "";
-                       tempstring2 = "";
-                       const u32 ii = 10;
-                       for(u32 i=0; i<ii; i++){
-                               tempstring2 += "asd";
-                       }
-                       for(u32 i=0; i<ii+1; i++){
-                               tempstring += "asd";
-                               if(tempstring == tempstring2)
-                                       break;
-                       }
-               }
-       }
-       
-       dstream<<"All of the following tests should take around 100ms each."
-                       <<std::endl;
-
-       {
-               TimeTaker timer("Testing floating-point conversion speed");
-               tempf = 0.001;
-               for(u32 i=0; i<4000000; i++){
-                       temp16 += tempf;
-                       tempf += 0.001;
-               }
-       }
-       
-       {
-               TimeTaker timer("Testing floating-point vector speed");
-
-               tempv3f1 = v3f(1,2,3);
-               tempv3f2 = v3f(4,5,6);
-               for(u32 i=0; i<10000000; i++){
-                       tempf += tempv3f1.dotProduct(tempv3f2);
-                       tempv3f2 += v3f(7,8,9);
+       SubgameSpec commanded_gamespec;
+
+       if (cmd_args.exists("gameid")) {
+               std::string gameid = cmd_args.get("gameid");
+               commanded_gamespec = findSubgame(gameid);
+               if (!commanded_gamespec.isValid()) {
+                       errorstream << "Game \"" << gameid << "\" not found" << std::endl;
+                       return false;
                }
+               dstream << _("Using game specified by --gameid on the command line")
+                       << std::endl;
+               game_params->game_spec = commanded_gamespec;
+               return true;
        }
 
-       {
-               TimeTaker timer("Testing core::map speed");
-               
-               core::map<v2s16, f32> map1;
-               tempf = -324;
-               const s16 ii=300;
-               for(s16 y=0; y<ii; y++){
-                       for(s16 x=0; x<ii; x++){
-                               map1.insert(v2s16(x,y), tempf);
-                               tempf += 1;
+       return false;
+}
+
+static bool determine_subgame(GameParams *game_params)
+{
+       SubgameSpec gamespec;
+
+       assert(game_params->world_path != "");  // Pre-condition
+
+       verbosestream << _("Determining gameid/gamespec") << std::endl;
+       // If world doesn't exist
+       if (game_params->world_path != ""
+                       && !getWorldExists(game_params->world_path)) {
+               // Try to take gamespec from command line
+               if (game_params->game_spec.isValid()) {
+                       gamespec = game_params->game_spec;
+                       infostream << "Using commanded gameid [" << gamespec.id << "]" << std::endl;
+               } else { // Otherwise we will be using "minetest"
+                       gamespec = findSubgame(g_settings->get("default_game"));
+                       infostream << "Using default gameid [" << gamespec.id << "]" << std::endl;
+                       if (!gamespec.isValid()) {
+                               errorstream << "Subgame specified in default_game ["
+                                           << g_settings->get("default_game")
+                                           << "] is invalid." << std::endl;
+                               return false;
                        }
                }
-               for(s16 y=ii-1; y>=0; y--){
-                       for(s16 x=0; x<ii; x++){
-                               tempf = map1[v2s16(x,y)];
+       } else { // World exists
+               std::string world_gameid = getWorldGameId(game_params->world_path, false);
+               // If commanded to use a gameid, do so
+               if (game_params->game_spec.isValid()) {
+                       gamespec = game_params->game_spec;
+                       if (game_params->game_spec.id != world_gameid) {
+                               warningstream << "Using commanded gameid ["
+                                           << gamespec.id << "]" << " instead of world gameid ["
+                                           << world_gameid << "]" << std::endl;
                        }
+               } else {
+                       // If world contains an embedded game, use it;
+                       // Otherwise find world from local system.
+                       gamespec = findWorldSubgame(game_params->world_path);
+                       infostream << "Using world gameid [" << gamespec.id << "]" << std::endl;
                }
        }
 
-       {
-               dstream<<"Around 5000/ms should do well here."<<std::endl;
-               TimeTaker timer("Testing mutex speed");
-               
-               JMutex m;
-               m.Init();
-               u32 n = 0;
-               u32 i = 0;
-               do{
-                       n += 10000;
-                       for(; i<n; i++){
-                               m.Lock();
-                               m.Unlock();
-                       }
-               }
-               // Do at least 10ms
-               while(timer.getTime() < 10);
-
-               u32 dtime = timer.stop();
-               u32 per_ms = n / dtime;
-               dstream<<"Done. "<<dtime<<"ms, "
-                               <<per_ms<<"/ms"<<std::endl;
+       if (!gamespec.isValid()) {
+               errorstream << "Subgame [" << gamespec.id << "] could not be found."
+                           << std::endl;
+               return false;
        }
-}
 
-void drawMenuBackground(video::IVideoDriver* driver)
-{
-       core::dimension2d<u32> screensize = driver->getScreenSize();
-               
-       video::ITexture *bgtexture =
-                       driver->getTexture(getTexturePath("menubg.png").c_str());
-       if(bgtexture)
-       {
-               s32 texturesize = 128;
-               s32 tiled_y = screensize.Height / texturesize + 1;
-               s32 tiled_x = screensize.Width / texturesize + 1;
-               
-               for(s32 y=0; y<tiled_y; y++)
-               for(s32 x=0; x<tiled_x; x++)
-               {
-                       core::rect<s32> rect(0,0,texturesize,texturesize);
-                       rect += v2s32(x*texturesize, y*texturesize);
-                       driver->draw2DImage(bgtexture, rect,
-                               core::rect<s32>(core::position2d<s32>(0,0),
-                               core::dimension2di(bgtexture->getSize())),
-                               NULL, NULL, true);
-               }
-       }
-       
-       video::ITexture *logotexture =
-                       driver->getTexture(getTexturePath("menulogo.png").c_str());
-       if(logotexture)
-       {
-               v2s32 logosize(logotexture->getOriginalSize().Width,
-                               logotexture->getOriginalSize().Height);
-               logosize *= 4;
-
-               video::SColor bgcolor(255,50,50,50);
-               core::rect<s32> bgrect(0, screensize.Height-logosize.Y-20,
-                               screensize.Width, screensize.Height);
-               driver->draw2DRectangle(bgcolor, bgrect, NULL);
-
-               core::rect<s32> rect(0,0,logosize.X,logosize.Y);
-               rect += v2s32(screensize.Width/2,screensize.Height-10-logosize.Y);
-               rect -= v2s32(logosize.X/2, 0);
-               driver->draw2DImage(logotexture, rect,
-                       core::rect<s32>(core::position2d<s32>(0,0),
-                       core::dimension2di(logotexture->getSize())),
-                       NULL, NULL, true);
-       }
+       game_params->game_spec = gamespec;
+       return true;
 }
 
-class StderrLogOutput: public ILogOutput
-{
-public:
-       /* line: Full line with timestamp, level and thread */
-       void printLog(const std::string &line)
-       {
-               std::cerr<<line<<std::endl;
-       }
-} main_stderr_log_out;
 
-class DstreamNoStderrLogOutput: public ILogOutput
+/*****************************************************************************
+ * Dedicated server
+ *****************************************************************************/
+static bool run_dedicated_server(const GameParams &game_params, const Settings &cmd_args)
 {
-public:
-       /* line: Full line with timestamp, level and thread */
-       void printLog(const std::string &line)
-       {
-               dstream_no_stderr<<line<<std::endl;
+       DSTACK("Dedicated server branch");
+
+       verbosestream << _("Using world path") << " ["
+                     << game_params.world_path << "]" << std::endl;
+       verbosestream << _("Using gameid") << " ["
+                     << game_params.game_spec.id << "]" << std::endl;
+
+       // Bind address
+       std::string bind_str = g_settings->get("bind_address");
+       Address bind_addr(0, 0, 0, 0, game_params.socket_port);
+
+       if (g_settings->getBool("ipv6_server")) {
+               bind_addr.setAddress((IPv6AddressBytes*) NULL);
+       }
+       try {
+               bind_addr.Resolve(bind_str.c_str());
+       } catch (ResolveError &e) {
+               infostream << "Resolving bind address \"" << bind_str
+                          << "\" failed: " << e.what()
+                          << " -- Listening on all addresses." << std::endl;
+       }
+       if (bind_addr.isIPv6() && !g_settings->getBool("enable_ipv6")) {
+               errorstream << "Unable to listen on "
+                           << bind_addr.serializeString()
+                           << L" because IPv6 is disabled" << std::endl;
+               return false;
        }
-} main_dstream_no_stderr_log_out;
 
-int main(int argc, char *argv[])
-{
-       /*
-               Initialization
-       */
-
-       log_add_output_maxlev(&main_stderr_log_out, LMT_ACTION);
-       log_add_output_all_levs(&main_dstream_no_stderr_log_out);
-
-       log_register_thread("main");
-
-       // Set locale. This is for forcing '.' as the decimal point.
-       std::locale::global(std::locale("C"));
-       // This enables printing all characters in bitmap font
-       setlocale(LC_CTYPE, "en_US");
-
-       /*
-               Parse command line
-       */
-       
-       // List all allowed options
-       core::map<std::string, ValueSpec> allowed_options;
-       allowed_options.insert("help", ValueSpec(VALUETYPE_FLAG));
-       allowed_options.insert("server", ValueSpec(VALUETYPE_FLAG,
-                       "Run server directly"));
-       allowed_options.insert("config", ValueSpec(VALUETYPE_STRING,
-                       "Load configuration from specified file"));
-       allowed_options.insert("port", ValueSpec(VALUETYPE_STRING));
-       allowed_options.insert("address", ValueSpec(VALUETYPE_STRING));
-       allowed_options.insert("random-input", ValueSpec(VALUETYPE_FLAG));
-       allowed_options.insert("disable-unittests", ValueSpec(VALUETYPE_FLAG));
-       allowed_options.insert("enable-unittests", ValueSpec(VALUETYPE_FLAG));
-       allowed_options.insert("map-dir", ValueSpec(VALUETYPE_STRING));
-#ifdef _WIN32
-       allowed_options.insert("dstream-on-stderr", ValueSpec(VALUETYPE_FLAG));
-#endif
-       allowed_options.insert("speedtests", ValueSpec(VALUETYPE_FLAG));
-       allowed_options.insert("info-on-stderr", ValueSpec(VALUETYPE_FLAG));
+       // Database migration
+       if (cmd_args.exists("migrate"))
+               return migrate_database(game_params, cmd_args);
 
-       Settings cmd_args;
-       
-       bool ret = cmd_args.parseCommandLine(argc, argv, allowed_options);
-
-       if(ret == false || cmd_args.getFlag("help"))
-       {
-               dstream<<"Allowed options:"<<std::endl;
-               for(core::map<std::string, ValueSpec>::Iterator
-                               i = allowed_options.getIterator();
-                               i.atEnd() == false; i++)
-               {
-                       dstream<<"  --"<<i.getNode()->getKey();
-                       if(i.getNode()->getValue().type == VALUETYPE_FLAG)
-                       {
-                       }
-                       else
-                       {
-                               dstream<<" <value>";
-                       }
-                       dstream<<std::endl;
+       if (cmd_args.exists("terminal")) {
+#if USE_CURSES
+               bool name_ok = true;
+               std::string admin_nick = g_settings->get("name");
 
-                       if(i.getNode()->getValue().help != NULL)
-                       {
-                               dstream<<"      "<<i.getNode()->getValue().help
-                                               <<std::endl;
+               name_ok = name_ok && !admin_nick.empty();
+               name_ok = name_ok && string_allowed(admin_nick, PLAYERNAME_ALLOWED_CHARS);
+
+               if (!name_ok) {
+                       if (admin_nick.empty()) {
+                               errorstream << "No name given for admin. "
+                                       << "Please check your minetest.conf that it "
+                                       << "contains a 'name = ' to your main admin account."
+                                       << std::endl;
+                       } else {
+                               errorstream << "Name for admin '"
+                                       << admin_nick << "' is not valid. "
+                                       << "Please check that it only contains allowed characters. "
+                                       << "Valid characters are: " << PLAYERNAME_ALLOWED_CHARS_USER_EXPL
+                                       << std::endl;
                        }
+                       return false;
                }
+               ChatInterface iface;
+               bool &kill = *porting::signal_handler_killstatus();
 
-               return cmd_args.getFlag("help") ? 0 : 1;
-       }
-       
-       /*
-               Low-level initialization
-       */
-
-       bool disable_stderr = false;
-#ifdef _WIN32
-       if(cmd_args.getFlag("dstream-on-stderr") == false)
-               disable_stderr = true;
-#endif
-       
-       if(cmd_args.getFlag("info-on-stderr"))
-               log_add_output(&main_stderr_log_out, LMT_INFO);
-
-       porting::signal_handler_init();
-       bool &kill = *porting::signal_handler_killstatus();
-       
-       // Initialize porting::path_data and porting::path_userdata
-       porting::initializePaths();
+               try {
+                       // Create server
+                       Server server(game_params.world_path,
+                               game_params.game_spec, false, bind_addr.isIPv6(), &iface);
 
-       // Create user data directory
-       fs::CreateDir(porting::path_userdata);
+                       g_term_console.setup(&iface, &kill, admin_nick);
 
-       init_gettext((porting::path_data+DIR_DELIM+".."+DIR_DELIM+"locale").c_str());
-       
-       // Initialize debug streams
-#ifdef RUN_IN_PLACE
-       std::string debugfile = DEBUGFILE;
-#else
-       std::string debugfile = porting::path_userdata+DIR_DELIM+DEBUGFILE;
-#endif
-       debugstreams_init(disable_stderr, debugfile.c_str());
-       // Initialize debug stacks
-       debug_stacks_init();
-
-       DSTACK(__FUNCTION_NAME);
+                       g_term_console.start();
 
-       // Init material properties table
-       //initializeMaterialProperties();
+                       server.start(bind_addr);
+                       // Run server
+                       dedicated_server_loop(server, kill);
+               } catch (const ModError &e) {
+                       g_term_console.stopAndWaitforThread();
+                       errorstream << "ModError: " << e.what() << std::endl;
+                       return false;
+               } catch (const ServerError &e) {
+                       g_term_console.stopAndWaitforThread();
+                       errorstream << "ServerError: " << e.what() << std::endl;
+                       return false;
+               }
 
-       // Debug handler
-       BEGIN_DEBUG_EXCEPTION_HANDLER
+               // Tell the console to stop, and wait for it to finish,
+               // only then leave context and free iface
+               g_term_console.stop();
+               g_term_console.wait();
 
-       // Print startup message
-       actionstream<<PROJECT_NAME<<
-                       " with SER_FMT_VER_HIGHEST="<<(int)SER_FMT_VER_HIGHEST
-                       <<", "<<BUILD_INFO
-                       <<std::endl;
-       
-       /*
-               Basic initialization
-       */
-
-       // Initialize default settings
-       set_default_settings(g_settings);
-       
-       // Initialize sockets
-       sockets_init();
-       atexit(sockets_cleanup);
-       
-       /*
-               Read config file
-       */
-       
-       // Path of configuration file in use
-       std::string configpath = "";
-       
-       if(cmd_args.exists("config"))
-       {
-               bool r = g_settings->readConfigFile(cmd_args.get("config").c_str());
-               if(r == false)
-               {
-                       errorstream<<"Could not read configuration from \""
-                                       <<cmd_args.get("config")<<"\""<<std::endl;
-                       return 1;
-               }
-               configpath = cmd_args.get("config");
-       }
-       else
-       {
-               core::array<std::string> filenames;
-               filenames.push_back(porting::path_userdata +
-                               DIR_DELIM + "minetest.conf");
-#ifdef RUN_IN_PLACE
-               filenames.push_back(porting::path_userdata +
-                               DIR_DELIM + ".." + DIR_DELIM + "minetest.conf");
+               g_term_console.clearKillStatus();
+       } else {
+#else
+               errorstream << "Cmd arg --terminal passed, but "
+                       << "compiled without ncurses. Ignoring." << std::endl;
+       } {
 #endif
-
-               for(u32 i=0; i<filenames.size(); i++)
-               {
-                       bool r = g_settings->readConfigFile(filenames[i].c_str());
-                       if(r)
-                       {
-                               configpath = filenames[i];
-                               break;
-                       }
+               try {
+                       // Create server
+                       Server server(game_params.world_path, game_params.game_spec, false,
+                               bind_addr.isIPv6());
+                       server.start(bind_addr);
+
+                       // Run server
+                       bool &kill = *porting::signal_handler_killstatus();
+                       dedicated_server_loop(server, kill);
+
+               } catch (const ModError &e) {
+                       errorstream << "ModError: " << e.what() << std::endl;
+                       return false;
+               } catch (const ServerError &e) {
+                       errorstream << "ServerError: " << e.what() << std::endl;
+                       return false;
                }
-               
-               // If no path found, use the first one (menu creates the file)
-               if(configpath == "")
-                       configpath = filenames[0];
        }
 
-       // Initialize random seed
-       srand(time(0));
-       mysrand(time(0));
-
-       /*
-               Run unit tests
-       */
+       return true;
+}
 
-       if((ENABLE_TESTS && cmd_args.getFlag("disable-unittests") == false)
-                       || cmd_args.getFlag("enable-unittests") == true)
-       {
-               run_tests();
+static bool migrate_database(const GameParams &game_params, const Settings &cmd_args)
+{
+       std::string migrate_to = cmd_args.get("migrate");
+       Settings world_mt;
+       std::string world_mt_path = game_params.world_path + DIR_DELIM + "world.mt";
+       if (!world_mt.readConfigFile(world_mt_path.c_str())) {
+               errorstream << "Cannot read world.mt!" << std::endl;
+               return false;
        }
-       
-       /*for(s16 y=-100; y<100; y++)
-       for(s16 x=-100; x<100; x++)
-       {
-               std::cout<<noise2d_gradient((double)x/10,(double)y/10, 32415)<<std::endl;
+       if (!world_mt.exists("backend")) {
+               errorstream << "Please specify your current backend in world.mt:"
+                       << std::endl
+                       << "    backend = {sqlite3|leveldb|redis|dummy}"
+                       << std::endl;
+               return false;
        }
-       return 0;*/
-       
-       /*
-               Game parameters
-       */
-
-       // Port
-       u16 port = 30000;
-       if(cmd_args.exists("port"))
-               port = cmd_args.getU16("port");
-       else if(g_settings->exists("port"))
-               port = g_settings->getU16("port");
-       if(port == 0)
-               port = 30000;
-       
-       // Map directory
-       std::string map_dir = porting::path_userdata+DIR_DELIM+"world";
-       if(cmd_args.exists("map-dir"))
-               map_dir = cmd_args.get("map-dir");
-       else if(g_settings->exists("map-dir"))
-               map_dir = g_settings->get("map-dir");
-       
-       // Run dedicated server if asked to
-       if(cmd_args.getFlag("server"))
-       {
-               DSTACK("Dedicated server branch");
-
-               // Create time getter
-               g_timegetter = new SimpleTimeGetter();
-               
-               // Create server
-               Server server(map_dir.c_str(), configpath);
-               server.start(port);
-               
-               // Run server
-               dedicated_server_loop(server, kill);
-
-               return 0;
+       std::string backend = world_mt.get("backend");
+       if (backend == migrate_to) {
+               errorstream << "Cannot migrate: new backend is same"
+                       << " as the old one" << std::endl;
+               return false;
        }
+       Database *old_db = ServerMap::createDatabase(backend, game_params.world_path, world_mt),
+               *new_db = ServerMap::createDatabase(migrate_to, game_params.world_path, world_mt);
 
+       u32 count = 0;
+       time_t last_update_time = 0;
+       bool &kill = *porting::signal_handler_killstatus();
 
-       /*
-               More parameters
-       */
-       
-       // Address to connect to
-       std::string address = "";
-       
-       if(cmd_args.exists("address"))
-       {
-               address = cmd_args.get("address");
-       }
-       else
-       {
-               address = g_settings->get("address");
-       }
-       
-       std::string playername = g_settings->get("name");
-
-       /*
-               Device initialization
-       */
-
-       // Resolution selection
-       
-       bool fullscreen = false;
-       u16 screenW = g_settings->getU16("screenW");
-       u16 screenH = g_settings->getU16("screenH");
-
-       // Determine driver
-
-       video::E_DRIVER_TYPE driverType;
-       
-       std::string driverstring = g_settings->get("video_driver");
-
-       if(driverstring == "null")
-               driverType = video::EDT_NULL;
-       else if(driverstring == "software")
-               driverType = video::EDT_SOFTWARE;
-       else if(driverstring == "burningsvideo")
-               driverType = video::EDT_BURNINGSVIDEO;
-       else if(driverstring == "direct3d8")
-               driverType = video::EDT_DIRECT3D8;
-       else if(driverstring == "direct3d9")
-               driverType = video::EDT_DIRECT3D9;
-       else if(driverstring == "opengl")
-               driverType = video::EDT_OPENGL;
-       else
-       {
-               errorstream<<"WARNING: Invalid video_driver specified; defaulting "
-                               "to opengl"<<std::endl;
-               driverType = video::EDT_OPENGL;
+       std::vector<v3s16> blocks;
+       old_db->listAllLoadableBlocks(blocks);
+       new_db->beginSave();
+       for (std::vector<v3s16>::const_iterator it = blocks.begin(); it != blocks.end(); ++it) {
+               if (kill) return false;
+
+               const std::string &data = old_db->loadBlock(*it);
+               if (!data.empty()) {
+                       new_db->saveBlock(*it, data);
+               } else {
+                       errorstream << "Failed to load block " << PP(*it) << ", skipping it." << std::endl;
+               }
+               if (++count % 0xFF == 0 && time(NULL) - last_update_time >= 1) {
+                       std::cerr << " Migrated " << count << " blocks, "
+                               << (100.0 * count / blocks.size()) << "% completed.\r";
+                       new_db->endSave();
+                       new_db->beginSave();
+                       last_update_time = time(NULL);
+               }
        }
+       std::cerr << std::endl;
+       new_db->endSave();
+       delete old_db;
+       delete new_db;
 
-       /*
-               Create device and exit if creation failed
-       */
-
-       MyEventReceiver receiver;
-
-       IrrlichtDevice *device;
-       device = createDevice(driverType,
-                       core::dimension2d<u32>(screenW, screenH),
-                       16, fullscreen, false, false, &receiver);
-
-       if (device == 0)
-               return 1; // could not create selected driver.
-       
-       /*
-               Continue initialization
-       */
-
-       video::IVideoDriver* driver = device->getVideoDriver();
-
-       // Disable mipmaps (because some of them look ugly)
-       driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, false);
-
-       /*
-               This changes the minimum allowed number of vertices in a VBO.
-               Default is 500.
-       */
-       //driver->setMinHardwareBufferVertexCount(50);
-
-       // Set the window caption
-       device->setWindowCaption(L"Minetest [Main Menu]");
-       
-       // Create time getter
-       g_timegetter = new IrrlichtTimeGetter(device);
-       
-       // Create game callback for menus
-       g_gamecallback = new MainGameCallback(device);
-       
-       /*
-               Speed tests (done after irrlicht is loaded to get timer)
-       */
-       if(cmd_args.getFlag("speedtests"))
-       {
-               dstream<<"Running speed tests"<<std::endl;
-               SpeedTests();
-               return 0;
-       }
-       
-       device->setResizable(true);
-
-       bool random_input = g_settings->getBool("random_input")
-                       || cmd_args.getFlag("random-input");
-       InputHandler *input = NULL;
-       if(random_input)
-               input = new RandomInputHandler();
+       actionstream << "Successfully migrated " << count << " blocks" << std::endl;
+       world_mt.set("backend", migrate_to);
+       if (!world_mt.updateConfigFile(world_mt_path.c_str()))
+               errorstream << "Failed to update world.mt!" << std::endl;
        else
-               input = new RealInputHandler(device, &receiver);
-       
-       scene::ISceneManager* smgr = device->getSceneManager();
-
-       guienv = device->getGUIEnvironment();
-       gui::IGUISkin* skin = guienv->getSkin();
-       gui::IGUIFont* font = guienv->getFont(getTexturePath("fontlucida.png").c_str());
-       if(font)
-               skin->setFont(font);
-       else
-               errorstream<<"WARNING: Font file was not found."
-                               " Using default font."<<std::endl;
-       // If font was not found, this will get us one
-       font = skin->getFont();
-       assert(font);
-       
-       u32 text_height = font->getDimension(L"Hello, world!").Height;
-       infostream<<"text_height="<<text_height<<std::endl;
-
-       //skin->setColor(gui::EGDC_BUTTON_TEXT, video::SColor(255,0,0,0));
-       skin->setColor(gui::EGDC_BUTTON_TEXT, video::SColor(255,255,255,255));
-       //skin->setColor(gui::EGDC_3D_HIGH_LIGHT, video::SColor(0,0,0,0));
-       //skin->setColor(gui::EGDC_3D_SHADOW, video::SColor(0,0,0,0));
-       skin->setColor(gui::EGDC_3D_HIGH_LIGHT, video::SColor(255,0,0,0));
-       skin->setColor(gui::EGDC_3D_SHADOW, video::SColor(255,0,0,0));
-       
-       /*
-               GUI stuff
-       */
-
-       /*
-               If an error occurs, this is set to something and the
-               menu-game loop is restarted. It is then displayed before
-               the menu.
-       */
-       std::wstring error_message = L"";
-
-       // The password entered during the menu screen,
-       std::string password;
-
-       /*
-               Menu-game loop
-       */
-       while(device->run() && kill == false)
-       {
-
-               // This is used for catching disconnects
-               try
-               {
-
-                       /*
-                               Clear everything from the GUIEnvironment
-                       */
-                       guienv->clear();
-                       
-                       /*
-                               We need some kind of a root node to be able to add
-                               custom gui elements directly on the screen.
-                               Otherwise they won't be automatically drawn.
-                       */
-                       guiroot = guienv->addStaticText(L"",
-                                       core::rect<s32>(0, 0, 10000, 10000));
-                       
-                       /*
-                               Out-of-game menu loop.
-
-                               Loop quits when menu returns proper parameters.
-                       */
-                       while(kill == false)
-                       {
-                               // Cursor can be non-visible when coming from the game
-                               device->getCursorControl()->setVisible(true);
-                               // Some stuff are left to scene manager when coming from the game
-                               // (map at least?)
-                               smgr->clear();
-                               // Reset or hide the debug gui texts
-                               /*guitext->setText(L"Minetest-c55");
-                               guitext2->setVisible(false);
-                               guitext_info->setVisible(false);
-                               guitext_chat->setVisible(false);*/
-                               
-                               // Initialize menu data
-                               MainMenuData menudata;
-                               menudata.address = narrow_to_wide(address);
-                               menudata.name = narrow_to_wide(playername);
-                               menudata.port = narrow_to_wide(itos(port));
-                               menudata.fancy_trees = g_settings->getBool("new_style_leaves");
-                               menudata.smooth_lighting = g_settings->getBool("smooth_lighting");
-                               menudata.clouds_3d = g_settings->getBool("enable_3d_clouds");
-                               menudata.opaque_water = g_settings->getBool("opaque_water");
-                               menudata.creative_mode = g_settings->getBool("creative_mode");
-                               menudata.enable_damage = g_settings->getBool("enable_damage");
-
-                               GUIMainMenu *menu =
-                                               new GUIMainMenu(guienv, guiroot, -1, 
-                                                       &g_menumgr, &menudata, g_gamecallback);
-                               menu->allowFocusRemoval(true);
-
-                               if(error_message != L"")
-                               {
-                                       errorstream<<"error_message = "
-                                                       <<wide_to_narrow(error_message)<<std::endl;
-
-                                       GUIMessageMenu *menu2 =
-                                                       new GUIMessageMenu(guienv, guiroot, -1, 
-                                                               &g_menumgr, error_message.c_str());
-                                       menu2->drop();
-                                       error_message = L"";
-                               }
-
-                               video::IVideoDriver* driver = device->getVideoDriver();
-                               
-                               infostream<<"Created main menu"<<std::endl;
-
-                               while(device->run() && kill == false)
-                               {
-                                       if(menu->getStatus() == true)
-                                               break;
-
-                                       //driver->beginScene(true, true, video::SColor(255,0,0,0));
-                                       driver->beginScene(true, true, video::SColor(255,128,128,128));
-
-                                       drawMenuBackground(driver);
-
-                                       guienv->drawAll();
-                                       
-                                       driver->endScene();
-                                       
-                                       // On some computers framerate doesn't seem to be
-                                       // automatically limited
-                                       sleep_ms(25);
-                               }
-                               
-                               // Break out of menu-game loop to shut down cleanly
-                               if(device->run() == false || kill == true)
-                                       break;
-                               
-                               infostream<<"Dropping main menu"<<std::endl;
-
-                               menu->drop();
-                               
-                               // Delete map if requested
-                               if(menudata.delete_map)
-                               {
-                                       bool r = fs::RecursiveDeleteContent(map_dir);
-                                       if(r == false)
-                                               error_message = L"Delete failed";
-                                       continue;
-                               }
-
-                               playername = wide_to_narrow(menudata.name);
-
-                               password = translatePassword(playername, menudata.password);
-
-                               //infostream<<"Main: password hash: '"<<password<<"'"<<std::endl;
-
-                               address = wide_to_narrow(menudata.address);
-                               int newport = stoi(wide_to_narrow(menudata.port));
-                               if(newport != 0)
-                                       port = newport;
-                               g_settings->set("new_style_leaves", itos(menudata.fancy_trees));
-                               g_settings->set("smooth_lighting", itos(menudata.smooth_lighting));
-                               g_settings->set("enable_3d_clouds", itos(menudata.clouds_3d));
-                               g_settings->set("opaque_water", itos(menudata.opaque_water));
-                               g_settings->set("creative_mode", itos(menudata.creative_mode));
-                               g_settings->set("enable_damage", itos(menudata.enable_damage));
-                               
-                               // NOTE: These are now checked server side; no need to do it
-                               //       here, so let's not do it here.
-                               /*// Check for valid parameters, restart menu if invalid.
-                               if(playername == "")
-                               {
-                                       error_message = L"Name required.";
-                                       continue;
-                               }
-                               // Check that name has only valid chars
-                               if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS)==false)
-                               {
-                                       error_message = L"Characters allowed: "
-                                                       +narrow_to_wide(PLAYERNAME_ALLOWED_CHARS);
-                                       continue;
-                               }*/
-
-                               // Save settings
-                               g_settings->set("name", playername);
-                               g_settings->set("address", address);
-                               g_settings->set("port", itos(port));
-                               // Update configuration file
-                               if(configpath != "")
-                                       g_settings->updateConfigFile(configpath.c_str());
-                       
-                               // Continue to game
-                               break;
-                       }
-                       
-                       // Break out of menu-game loop to shut down cleanly
-                       if(device->run() == false || kill == true)
-                               break;
-                       
-                       /*
-                               Run game
-                       */
-                       the_game(
-                               kill,
-                               random_input,
-                               input,
-                               device,
-                               font,
-                               map_dir,
-                               playername,
-                               password,
-                               address,
-                               port,
-                               error_message,
-                               configpath
-                       );
-
-               } //try
-               catch(con::PeerNotFoundException &e)
-               {
-                       errorstream<<"Connection error (timed out?)"<<std::endl;
-                       error_message = L"Connection error (timed out?)";
-               }
-               catch(SocketException &e)
-               {
-                       errorstream<<"Socket error (port already in use?)"<<std::endl;
-                       error_message = L"Socket error (port already in use?)";
-               }
-               catch(ModError &e)
-               {
-                       errorstream<<e.what()<<std::endl;
-                       error_message = narrow_to_wide(e.what()) + L"\nCheck debug.txt for details.";
-               }
-#ifdef NDEBUG
-               catch(std::exception &e)
-               {
-                       std::string narrow_message = "Some exception, what()=\"";
-                       narrow_message += e.what();
-                       narrow_message += "\"";
-                       errorstream<<narrow_message<<std::endl;
-                       error_message = narrow_to_wide(narrow_message);
-               }
-#endif
+               actionstream << "world.mt updated" << std::endl;
 
-       } // Menu-game loop
-       
-       delete input;
-
-       /*
-               In the end, delete the Irrlicht device.
-       */
-       device->drop();
-       
-       END_DEBUG_EXCEPTION_HANDLER(errorstream)
-       
-       debugstreams_deinit();
-       
-       return 0;
+       return true;
 }
 
-//END
-