src/clientmap.cpp

/*
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 Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#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

#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

#include "irrlicht.h" // createDevice

#include "main.h"
#include "mainmenumanager.h"
#include <iostream>
#include <fstream>
#include <locale.h>
#include "irrlichttypes_extrabloated.h"
#include "debug.h"
#include "test.h"
#include "clouds.h"
#include "server.h"
#include "constants.h"
#include "porting.h"
#include "gettime.h"
#include "filesys.h"
#include "config.h"
#include "version.h"
#include "guiMainMenu.h"
#include "game.h"
#include "keycode.h"
#include "tile.h"
#include "chat.h"
#include "defaultsettings.h"
#include "gettext.h"
#include "settings.h"
#include "profiler.h"
#include "log.h"
#include "mods.h"
#if USE_FREETYPE
#include "xCGUITTFont.h"
#endif
#include "util/string.h"
#include "subgame.h"
#include "quicktune.h"
#include "serverlist.h"
#include "httpfetch.h"
#include "guiEngine.h"
#include "mapsector.h"

#include "database-sqlite3.h"
#ifdef USE_LEVELDB
#include "database-leveldb.h"
#endif
#if USE_REDIS
#include "database-redis.h"
#endif

/*
	Settings.
	These are loaded from the config file.
*/
Settings main_settings;
Settings *g_settings = &main_settings;
std::string g_settings_path;

// Global profiler
Profiler main_profiler;
Profiler *g_profiler = &main_profiler;

// Menu clouds are created later
Clouds *g_menuclouds = 0;
irr::scene::ISceneManager *g_menucloudsmgr = 0;

/*
	Debug streams
*/

// Connection
std::ostream *dout_con_ptr = &dummyout;
std::ostream *derr_con_ptr = &verbosestream;

// Server
std::ostream *dout_server_ptr = &infostream;
std::ostream *derr_server_ptr = &errorstream;

// Client
std::ostream *dout_client_ptr = &infostream;
std::ostream *derr_client_ptr = &errorstream;

#ifndef SERVER
/*
	Random stuff
*/

/* mainmenumanager.h */

gui::IGUIEnvironment* guienv = NULL;
gui::IGUIStaticText *guiroot = NULL;
MainMenuManager g_menumgr;

bool noMenuActive()
{
	return (g_menumgr.menuCount() == 0);
}

// Passed to menus to allow disconnecting and exiting
MainGameCallback *g_gamecallback = NULL;
#endif

/*
	gettime.h implementation
*/

#ifdef SERVER

u32 getTimeMs()
{
	/* Use imprecise system calls directly (from porting.h) */
	return porting::getTime(PRECISION_MILLI);
}

u32 getTime(TimePrecision prec)
{
	return porting::getTime(prec);
}

#else

// A small helper class
class TimeGetter
{
public:
	virtual u32 getTime(TimePrecision prec) = 0;
};

// A precise irrlicht one
class IrrlichtTimeGetter: public TimeGetter
{
public:
	IrrlichtTimeGetter(IrrlichtDevice *device):
		m_device(device)
	{}
	u32 getTime(TimePrecision prec)
	{
		if (prec == PRECISION_MILLI) {
			if (m_device == NULL)
				return 0;
			return m_device->getTimer()->getRealTime();
		} else {
			return porting::getTime(prec);
		}
	}
private:
	IrrlichtDevice *m_device;
};
// Not so precise one which works without irrlicht
class SimpleTimeGetter: public TimeGetter
{
public:
	u32 getTime(TimePrecision prec)
	{
		return porting::getTime(prec);
	}
};

// A pointer to a global instance of the time getter
// TODO: why?
TimeGetter *g_timegetter = NULL;

u32 getTimeMs()
{
	if (g_timegetter == NULL)
		return 0;
	return g_timegetter->getTime(PRECISION_MILLI);
}

u32 getTime(TimePrecision prec) {
	if (g_timegetter == NULL)
		return 0;
	return g_timegetter->getTime(prec);
}
#endif

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
{
public:
	/* line: Full line with timestamp, level and thread */
	void printLog(const std::string &line)
	{
		dstream_no_stderr << line << std::endl;
	}
} main_dstream_no_stderr_log_out;

#ifndef SERVER

/*
	Event handler for Irrlicht

	NOTE: Everything possible should be moved out from here,
	      probably to InputHandler and the_game
*/

class MyEventReceiver : public IEventReceiver
{
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) {
			return g_menumgr.preprocessEvent(event);
		}

		// 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 (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;
				}
			}
		}
		if (event.EventType == irr::EET_LOG_TEXT_EVENT) {
			dstream << "Irrlicht log: " << event.LogEvent.Text << std::endl;
			return true;
		}
		/* always return false in order to continue processing events */
		return false;
	}

	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;
	}

	s32 getMouseWheel()
	{
		s32 a = mouse_wheel;
		mouse_wheel = 0;
		return a;
	}

	void clearInput()
	{
		keyIsDown.clear();
		keyWasDown.clear();

		leftclicked = false;
		rightclicked = false;
		leftreleased = false;
		rightreleased = false;

		left_active = false;
		middle_active = false;
		right_active = false;

		mouse_wheel = 0;
	}

	MyEventReceiver()
	{
		clearInput();
	}

	bool leftclicked;
	bool rightclicked;
	bool leftreleased;
	bool rightreleased;

	bool left_active;
	bool middle_active;
	bool right_active;

	s32 mouse_wheel;

private:

	// The current state of keys
	KeyList keyIsDown;
	// Whether a key has been pressed or not
	KeyList keyWasDown;
};

/*
	Separated input handler
*/

class RealInputHandler : public InputHandler
{
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);
	}

	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;
	}

	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;
	}

	virtual s32 getMouseWheel()
	{
		return m_receiver->getMouseWheel();
	}

	void clear()
	{
		m_receiver->clearInput();
	}
private:
	IrrlichtDevice *m_device;
	MyEventReceiver *m_receiver;
};

class RandomInputHandler : public InputHandler
{
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)
	{
		return false;
	}
	virtual v2s32 getMousePos()
	{
		return mousepos;
	}
	virtual void setMousePos(s32 x, s32 y)
	{
		mousepos = v2s32(x, y);
	}

	virtual bool getLeftState()
	{
		return leftdown;
	}
	virtual bool getRightState()
	{
		return rightdown;
	}

	virtual bool getLeftClicked()
	{
		return leftclicked;
	}
	virtual bool getRightClicked()
	{
		return rightclicked;
	}
	virtual void resetLeftClicked()
	{
		leftclicked = false;
	}
	virtual void resetRightClicked()
	{
		rightclicked = false;
	}

	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;
	}

	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;
	}

	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;
};

#endif // !SERVER

// 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()
{
	{
		infostream << "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;
			}
		}
	}

	infostream << "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);
		}
	}

	{
		TimeTaker timer("Testing std::map speed");

		std::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[v2s16(x, y)] =  tempf;
				tempf += 1;
			}
		}
		for(s16 y = ii - 1; y >= 0; y--) {
			for(s16 x = 0; x < ii; x++) {
				tempf = map1[v2s16(x, y)];
			}
		}
	}

	{
		infostream << "Around 5000/ms should do well here." << std::endl;
		TimeTaker timer("Testing mutex speed");

		JMutex m;
		u32 n = 0;
		u32 i = 0;
		do {
			n += 10000;
			for(; i < n; i++) {
				m.Lock();
				m.Unlock();
			}
		}
		// Do at least 10ms
		while(timer.getTimerTime() < 10);

		u32 dtime = timer.stop();
		u32 per_ms = n / dtime;
		infostream << "Done. " << dtime << "ms, " << per_ms << "/ms" << std::endl;
	}
}

static void print_worldspecs(const std::vector<WorldSpec> &worldspecs, std::ostream &os)
{
	for(u32 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;
	}
}

int main(int argc, char *argv[])
{
	int retval = 0;

	/*
		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");
	/*
		Parse command line
	*/

	// List all allowed options
	std::map<std::string, ValueSpec> allowed_options;
	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("disable-unittests", ValueSpec(VALUETYPE_FLAG,
			_("Disable unit tests"))));
	allowed_options.insert(std::make_pair("enable-unittests", ValueSpec(VALUETYPE_FLAG,
			_("Enable unit tests"))));
	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)"))));
#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

	Settings cmd_args;

	bool ret = cmd_args.parseCommandLine(argc, argv, allowed_options);

	if (ret == false || cmd_args.getFlag("help") || cmd_args.exists("nonopt1")) {
		dstream << _("Allowed options:") << std::endl;
		for(std::map<std::string, ValueSpec>::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) {
			} else
				os1 << _(" <value>");
			dstream << padStringRight(os1.str(), 24);

			if (i->second.help != NULL)
				dstream << i->second.help;
			dstream << std::endl;
		}

		return cmd_args.getFlag("help") ? 0 : 1;
	}

	if (cmd_args.getFlag("version")) {
#ifdef SERVER
		dstream << "minetestserver " << minetest_version_hash << std::endl;
#else
		dstream << "Minetest " << minetest_version_hash << std::endl;
		dstream << "Using Irrlicht " << IRRLICHT_SDK_VERSION << std::endl;
#endif
		dstream << "Build info: " << minetest_build_info << std::endl;
		return 0;
	}

	/*
		Low-level initialization
	*/
	
	// Quiet mode, print errors only
	if (cmd_args.getFlag("quiet")) {
		log_remove_output(&main_stderr_log_out);
		log_add_output_maxlev(&main_stderr_log_out, LMT_ERROR);
	}
	// If trace is enabled, enable logging of certain things
	if (cmd_args.getFlag("trace")) {
		dstream << _("Enabling trace level debug output") << std::endl;
		log_trace_level_enabled = true;
		dout_con_ptr = &verbosestream; // this is somewhat old crap
		socket_enable_debug_output = true; // socket doesn't use log.h
	}
	// 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"))
		log_add_output(&main_stderr_log_out, LMT_INFO);
	// In certain cases, output verbose level on stderr
	if (cmd_args.getFlag("verbose") || cmd_args.getFlag("trace"))
		log_add_output(&main_stderr_log_out, LMT_VERBOSE);

	porting::signal_handler_init();
	bool &kill = *porting::signal_handler_killstatus();

	porting::initializePaths();

	// Create user data directory
	fs::CreateDir(porting::path_user);

	infostream << "path_share = " << porting::path_share << std::endl;
	infostream << "path_user  = " << porting::path_user << std::endl;

	// Initialize debug stacks
	debug_stacks_init();
	DSTACK(__FUNCTION_NAME);

	// Debug handler
	BEGIN_DEBUG_EXCEPTION_HANDLER

	// List gameids if requested
	if (cmd_args.exists("gameid") && cmd_args.get("gameid") == "list") {
		std::set<std::string> gameids = getAvailableGameIds();
		for(std::set<std::string>::const_iterator i = gameids.begin();
				i != gameids.end(); i++)
			dstream<<(*i)<<std::endl;
		return 0;
	}

	// List worlds if requested
	if (cmd_args.exists("world") && cmd_args.get("world") == "list") {
		dstream << _("Available worlds:") << std::endl;
		std::vector<WorldSpec> worldspecs = getAvailableWorlds();
		print_worldspecs(worldspecs, dstream);
		return 0;
	}

	// Print startup message
	infostream<<PROJECT_NAME <<	" "<< _("with") << " SER_FMT_VER_HIGHEST_READ="
		<< (int)SER_FMT_VER_HIGHEST_READ << ", " << minetest_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
	g_settings_path = "";

	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;
		}
		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");
#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

		for(u32 i = 0; i < filenames.size(); i++) {
			bool r = g_settings->readConfigFile(filenames[i].c_str());
			if (r) {
				g_settings_path = filenames[i];
				break;
			}
		}

		// If no path found, use the first one (menu creates the file)
		if (g_settings_path == "")
			g_settings_path = filenames[0];
	}

	// Initialize debug streams
#define DEBUGFILE "debug.txt"
#if RUN_IN_PLACE
	std::string logfile = DEBUGFILE;
#else
	std::string logfile = porting::path_user+DIR_DELIM+DEBUGFILE;
#endif
	if (cmd_args.exists("logfile"))
		logfile = cmd_args.get("logfile");

	log_remove_output(&main_dstream_no_stderr_log_out);
	int loglevel = g_settings->getS32("debug_log_level");

	if (loglevel == 0) //no logging
		logfile = "";
	else if (loglevel > 0 && loglevel <= LMT_NUM_VALUES)
		log_add_output_maxlev(&main_dstream_no_stderr_log_out,
		(LogMessageLevel)(loglevel - 1));

	if (logfile != "")
		debugstreams_init(false, logfile.c_str());
	else
		debugstreams_init(false, NULL);

	infostream << "logfile = " << logfile << std::endl;

	// Initialize random seed
	srand(time(0));
	mysrand(time(0));

	// Initialize HTTP fetcher
	httpfetch_init(g_settings->getS32("curl_parallel_limit"));

	/*
		Run unit tests
	*/

	if ((ENABLE_TESTS && cmd_args.getFlag("disable-unittests") == false)
			|| cmd_args.getFlag("enable-unittests") == true) {
				run_tests();
	}
#ifdef _MSC_VER
	init_gettext((porting::path_share + DIR_DELIM + "locale").c_str(),
		g_settings->get("language"), argc, argv);
#else
	init_gettext((porting::path_share + DIR_DELIM + "locale").c_str(),
		g_settings->get("language"));
#endif

	/*
		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;

	// World directory
	std::string commanded_world = "";
	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");
	else if (g_settings->exists("map-dir"))
		commanded_world = g_settings->get("map-dir");

	// World name
	std::string commanded_worldname = "";
	if (cmd_args.exists("worldname"))
		commanded_worldname = cmd_args.get("worldname");

	// Strip world.mt from commanded_world
	{
		std::string worldmt = "world.mt";
		if (commanded_world.size() > worldmt.size() &&
				commanded_world.substr(commanded_world.size() - worldmt.size())
				== worldmt) {
			dstream << _("Supplied world.mt file - stripping it off.") << std::endl;
			commanded_world = commanded_world.substr(0, 
				commanded_world.size() - worldmt.size());
		}
	}

	// 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) {
				if (commanded_world != "") {
					dstream << _("--worldname takes precedence over previously "
							"selected world.") << 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 1;
		}
	}

	// Gamespec
	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 1;
		}
	}


	/*
		Run dedicated server if asked to or no other option
	*/
#ifdef SERVER
	bool run_dedicated_server = true;
#else
	bool run_dedicated_server = cmd_args.getFlag("server");
#endif
	g_settings->set("server_dedicated", run_dedicated_server ? "true" : "false");
	if (run_dedicated_server)
	{
		DSTACK("Dedicated server branch");
		// Create time getter if built with Irrlicht
#ifndef SERVER
		g_timegetter = new SimpleTimeGetter();
#endif

		// World directory
		std::string world_path;
		verbosestream << _("Determining world path") << std::endl;
		bool is_legacy_world = false;
		// If a world was commanded, use it
		if (commanded_world != "") {
			world_path = commanded_world;
			infostream << "Using commanded world path [" << world_path << "]"
				<< std::endl;
		} else { // No world was specified; try to select it automatically
			// Get information about available worlds
			std::vector<WorldSpec> worldspecs = getAvailableWorlds();
			// If a world name was specified, select it
			if (commanded_worldname != "") {
				world_path = "";
				for(u32 i = 0; i < worldspecs.size(); i++) {
					std::string name = worldspecs[i].name;
					if (name == commanded_worldname) {
						world_path = worldspecs[i].path;
						break;
					}
				}
				if (world_path == "") {
					dstream << _("World") << " '" << commanded_worldname << "' " << _("not "
						"available. Available worlds:") << std::endl;
					print_worldspecs(worldspecs, dstream);
					return 1;
				}
			}
			// 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) {
				dstream << _("Multiple worlds are available.") << std::endl;
				dstream << _("Please select one using --worldname <name>"
						" or --world <path>") << std::endl;
				print_worldspecs(worldspecs, dstream);
				return 1;
			// 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;
			}
		}

		if (world_path == "") {
			errorstream << "No world path specified or found." << std::endl;
			return 1;
		}
		verbosestream << _("Using world path") << " [" << world_path << "]" << std::endl;

		// We need a gamespec.
		SubgameSpec gamespec;
		verbosestream << _("Determining gameid/gamespec") << std::endl;
		// If world doesn't exist
		if (!getWorldExists(world_path)) {
			// Try to take gamespec from command line
			if (commanded_gamespec.isValid()) {
				gamespec = commanded_gamespec;
				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;
			}
		} else { // World exists
			std::string world_gameid = getWorldGameId(world_path, is_legacy_world);
			// If commanded to use a gameid, do so
			if (commanded_gamespec.isValid()) {
				gamespec = commanded_gamespec;
				if (commanded_gamespec.id != world_gameid) {
					errorstream << "WARNING: 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(world_path);
				infostream << "Using world gameid [" << gamespec.id << "]" << std::endl;
			}
		}
		if (!gamespec.isValid()) {
			errorstream << "Subgame [" << gamespec.id << "] could not be found."
					<< std::endl;
			return 1;
		}
		verbosestream << _("Using gameid") << " [" << gamespec.id<<"]" << std::endl;

		// Bind address
		std::string bind_str = g_settings->get("bind_address");
		Address bind_addr(0, 0, 0, 0, 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 1;
		}

		// Create server
		Server server(world_path, gamespec, false, bind_addr.isIPv6());

		// Database migration
		if (cmd_args.exists("migrate")) {
			std::string migrate_to = cmd_args.get("migrate");
			Settings world_mt;
			bool success = world_mt.readConfigFile((world_path + DIR_DELIM 
				+ "world.mt").c_str());
			if (!success) {
				errorstream << "Cannot read world.mt" << std::endl;
				return 1;
			}
			if (!world_mt.exists("backend")) {
				errorstream << "Please specify your current backend in world.mt file:"
					<< std::endl << "	backend = {sqlite3|leveldb|redis|dummy}" << std::endl;
				return 1;
			}
			std::string backend = world_mt.get("backend");
			Database *new_db;
			if (backend == migrate_to) {
				errorstream << "Cannot migrate: new backend is same"
					<<" as the old one" << std::endl;
				return 1;
			}
			if (migrate_to == "sqlite3")
				new_db = new Database_SQLite3(&(ServerMap&)server.getMap(), world_path);
			#if USE_LEVELDB
			else if (migrate_to == "leveldb")
				new_db = new Database_LevelDB(&(ServerMap&)server.getMap(), world_path);
			#endif
			#if USE_REDIS
			else if (migrate_to == "redis")
				new_db = new Database_Redis(&(ServerMap&)server.getMap(), world_path);
			#endif
			else {
				errorstream << "Migration to " << migrate_to 
					<< " is not supported" << std::endl;
				return 1;
			}

			std::list<v3s16> blocks;
			ServerMap &old_map = ((ServerMap&)server.getMap());
			old_map.listAllLoadableBlocks(blocks);
			int count = 0;
			new_db->beginSave();
			for (std::list<v3s16>::iterator i = blocks.begin(); i != blocks.end(); i++) {
				MapBlock *block = old_map.loadBlock(*i);
				new_db->saveBlock(block);
				MapSector *sector = old_map.getSectorNoGenerate(v2s16(i->X, i->Z));
				sector->deleteBlock(block);
				++count;
				if (count % 500 == 0)
					actionstream << "Migrated " << count << " blocks "
						<< (100.0 * count / blocks.size()) << "% completed" << std::endl;
			}
			new_db->endSave();
			delete new_db;

			actionstream << "Successfully migrated " << count << " blocks" << std::endl;
			world_mt.set("backend", migrate_to);
			if (!world_mt.updateConfigFile((world_path + DIR_DELIM + "world.mt").c_str()))
				errorstream << "Failed to update world.mt!" << std::endl;
			else
				actionstream << "world.mt updated" << std::endl;

			return 0;
		}

		server.start(bind_addr);

		// Run server
		dedicated_server_loop(server, kill);

		return 0;
	}

#ifndef SERVER // Exclude from dedicated server build

	/*
		More parameters
	*/

	std::string address = g_settings->get("address");
	if (commanded_world != "")
		address = "";
	else if (cmd_args.exists("address"))
		address = cmd_args.get("address");

	std::string playername = g_settings->get("name");
	if (cmd_args.exists("name"))
		playername = cmd_args.get("name");

	bool skip_main_menu = cmd_args.getFlag("go");

	/*
		Device initialization
	*/

	// Resolution selection

	bool fullscreen = g_settings->getBool("fullscreen");
	u16 screenW = g_settings->getU16("screenW");
	u16 screenH = g_settings->getU16("screenH");

	// bpp, fsaa, vsync

	bool vsync = g_settings->getBool("vsync");
	u16 bits = g_settings->getU16("fullscreen_bpp");
	u16 fsaa = g_settings->getU16("fsaa");

	// 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;
#ifdef _IRR_COMPILE_WITH_OGLES1_
	else if (driverstring == "ogles1")
		driverType = video::EDT_OGLES1;
#endif
#ifdef _IRR_COMPILE_WITH_OGLES2_
	else if (driverstring == "ogles2")
		driverType = video::EDT_OGLES2;
#endif
	else {
		errorstream << "WARNING: Invalid video_driver specified; defaulting "
			<< "to opengl" << std::endl;
		driverType = video::EDT_OPENGL;
	}

	/*
		List video modes if requested
	*/

	MyEventReceiver receiver;

	if (cmd_args.getFlag("videomodes")) {
		IrrlichtDevice *nulldevice;

		SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
		params.DriverType    = video::EDT_NULL;
		params.WindowSize    = core::dimension2d<u32>(640, 480);
		params.Bits          = 24;
		params.AntiAlias     = fsaa;
		params.Fullscreen    = false;
		params.Stencilbuffer = false;
		params.Vsync         = vsync;
		params.EventReceiver = &receiver;
		params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");

		nulldevice = createDeviceEx(params);

		if (nulldevice == 0)
			return 1;

		dstream << _("Available video modes (WxHxD):") << std::endl;

		video::IVideoModeList *videomode_list =
				nulldevice->getVideoModeList();

		if (videomode_list == 0) {
			nulldevice->drop();
			return 1;
		}

		s32 videomode_count = videomode_list->getVideoModeCount();
		core::dimension2d<u32> videomode_res;
		s32 videomode_depth;
		for (s32 i = 0; i < videomode_count; ++i) {
			videomode_res = videomode_list->getVideoModeResolution(i);
			videomode_depth = videomode_list->getVideoModeDepth(i);
			dstream<<videomode_res.Width << "x" << videomode_res.Height
					<< "x" << videomode_depth << std::endl;
		}

		dstream << _("Active video mode (WxHxD):") << std::endl;
		videomode_res = videomode_list->getDesktopResolution();
		videomode_depth = videomode_list->getDesktopDepth();
		dstream << videomode_res.Width << "x" << videomode_res.Height
				<< "x" << videomode_depth << std::endl;

		nulldevice->drop();

		return 0;
	}

	/*
		Create device and exit if creation failed
	*/

	IrrlichtDevice *device;

	SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
	params.DriverType    = driverType;
	params.WindowSize    = core::dimension2d<u32>(screenW, screenH);
	params.Bits          = bits;
	params.AntiAlias     = fsaa;
	params.Fullscreen    = fullscreen;
	params.Stencilbuffer = false;
	params.Vsync         = vsync;
	params.EventReceiver = &receiver;
	params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");

	device = createDeviceEx(params);

	if (device == 0) {
		return 1; // could not create selected driver.
	}

	// Map our log level to irrlicht engine one.
	static const irr::ELOG_LEVEL irr_log_level[5] = {
		ELL_NONE,
		ELL_ERROR,
		ELL_WARNING,
		ELL_INFORMATION,
#if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 8)	
		ELL_INFORMATION
#else
		ELL_DEBUG
#endif
	};
	
	ILogger* irr_logger = device->getLogger();
	irr_logger->setLogLevel(irr_log_level[loglevel]);
	 
	porting::initIrrlicht(device);

	/*
		Continue initialization
	*/

	video::IVideoDriver* driver = device->getVideoDriver();

	/*
		This changes the minimum allowed number of vertices in a VBO.
		Default is 500.
	*/
	//driver->setMinHardwareBufferVertexCount(50);

	// 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();
		device->drop();
		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();
	} else {
		input = new RealInputHandler(device, &receiver);
	}

	scene::ISceneManager* smgr = device->getSceneManager();

	guienv = device->getGUIEnvironment();
	gui::IGUISkin* skin = guienv->getSkin();
	std::string font_path = g_settings->get("font_path");
	gui::IGUIFont *font;
	#if USE_FREETYPE
	bool use_freetype = g_settings->getBool("freetype");
	if (use_freetype) {
		std::string fallback;
		if (is_yes(gettext("needs_fallback_font")))
			fallback = "fallback_";
		u16 font_size = g_settings->getU16(fallback + "font_size");
		font_path = g_settings->get(fallback + "font_path");
		u32 font_shadow = g_settings->getU16(fallback + "font_shadow");
		u32 font_shadow_alpha = g_settings->getU16(fallback + "font_shadow_alpha");
		font = gui::CGUITTFont::createTTFont(guienv, font_path.c_str(), font_size,
			true, true, font_shadow, font_shadow_alpha);
	} else {
		font = guienv->getFont(font_path.c_str());
	}
	#else
	font = guienv->getFont(font_path.c_str());
	#endif
	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, 255, 255, 255));
	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));
	skin->setColor(gui::EGDC_HIGH_LIGHT, video::SColor(255, 70, 100, 50));
	skin->setColor(gui::EGDC_HIGH_LIGHT_TEXT, video::SColor(255, 255, 255, 255));

#if (IRRLICHT_VERSION_MAJOR >= 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR >= 2
	// Irrlicht 1.8 input colours
	skin->setColor(gui::EGDC_EDITABLE, video::SColor(255, 128, 128, 128));
	skin->setColor(gui::EGDC_FOCUSED_EDITABLE, video::SColor(255, 96, 134, 49));
#endif


	// Create the menu clouds
	if (!g_menucloudsmgr)
		g_menucloudsmgr = smgr->createNewSceneManager();
	if (!g_menuclouds)
		g_menuclouds = new Clouds(g_menucloudsmgr->getRootSceneNode(),
			g_menucloudsmgr, -1, rand(), 100);
	g_menuclouds->update(v2f(0, 0), video::SColor(255, 200, 200, 255));
	scene::ICameraSceneNode* camera;
	camera = g_menucloudsmgr->addCameraSceneNode(0,
				v3f(0, 0, 0), v3f(0, 60, 100));
	camera->setFarValue(10000);

	/*
		GUI stuff
	*/

	ChatBackend chat_backend;

	/*
		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;

	bool first_loop = true;

	/*
		Menu-game loop
	*/
	while (device->run() && kill == false)
	{
		// Set the window caption
		wchar_t* text = wgettext("Main Menu");
		device->setWindowCaption((std::wstring(L"Minetest [") + text + L"]").c_str());
		delete[] text;

		// 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));

			SubgameSpec gamespec;
			WorldSpec worldspec;
			bool simple_singleplayer_mode = false;

			// These are set up based on the menu and other things
			std::string current_playername = "inv£lid";
			std::string current_password = "";
			std::string current_address = "does-not-exist";
			int current_port = 0;

			/*
				Out-of-game menu loop.

				Loop quits when menu returns proper parameters.
			*/
			while (kill == false) {
				// If skip_main_menu, only go through here once
				if (skip_main_menu && !first_loop) {
					kill = true;
					break;
				}
				first_loop = 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();

				// Initialize menu data
				MainMenuData menudata;
				menudata.address = address;
				menudata.name = playername;
				menudata.port = itos(port);
				menudata.errormessage = wide_to_narrow(error_message);
				error_message = L"";
				if (cmd_args.exists("password"))
					menudata.password = cmd_args.get("password");

				driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, g_settings->getBool("mip_map"));

				menudata.enable_public = g_settings->getBool("server_announce");

				std::vector<WorldSpec> worldspecs = getAvailableWorlds();

				// If a world was commanded, append and select it
				if (commanded_world != "") {

					std::string gameid = getWorldGameId(commanded_world, true);
					std::string name = _("[--world parameter]");
					if (gameid == "") {
						gameid = g_settings->get("default_game");
						name += " [new]";
					}
					//TODO find within worldspecs and set config
				}

				if (skip_main_menu == false) {
					video::IVideoDriver* driver = device->getVideoDriver();

					infostream << "Waiting for other menus" << std::endl;
					while (device->run() && kill == false) {
						if (noMenuActive())
							break;
						driver->beginScene(true, true,
								video::SColor(255, 128, 128, 128));
						guienv->drawAll();
						driver->endScene();
						// On some computers framerate doesn't seem to be
						// automatically limited
						sleep_ms(25);
					}
					infostream << "Waited for other menus" << std::endl;

					GUIEngine* temp = new GUIEngine(device, guiroot,
						&g_menumgr, smgr, &menudata, kill);

					delete temp;
					//once finished you'll never end up here
					smgr->clear();
				}

				if (menudata.errormessage != "") {
					error_message = narrow_to_wide(menudata.errormessage);
					continue;
				}

				//update worldspecs (necessary as new world may have been created)
				worldspecs = getAvailableWorlds();

				if (menudata.name == "")
					menudata.name = std::string("Guest") + itos(myrand_range(1000,9999));
				else
					playername = menudata.name;

				password = translatePassword(playername, narrow_to_wide(menudata.password));
				//infostream<<"Main: password hash: '"<<password<<"'"<<std::endl;

				address = menudata.address;
				int newport = stoi(menudata.port);
				if (newport != 0)
					port = newport;

				simple_singleplayer_mode = menudata.simple_singleplayer_mode;

				// Save settings
				g_settings->set("name", playername);

				if ((menudata.selected_world >= 0) &&
						(menudata.selected_world < (int)worldspecs.size()))
					g_settings->set("selected_world_path",
							worldspecs[menudata.selected_world].path);

				// Break out of menu-game loop to shut down cleanly
				if (device->run() == false || kill == true)
					break;

				current_playername = playername;
				current_password = password;
				current_address = address;
				current_port = port;

				// If using simple singleplayer mode, override
				if (simple_singleplayer_mode) {
					current_playername = "singleplayer";
					current_password = "";
					current_address = "";
					current_port = myrand_range(49152, 65535);
				} else if (address != "") {
					ServerListSpec server;
					server["name"] = menudata.servername;
					server["address"] = menudata.address;
					server["port"] = menudata.port;
					server["description"] = menudata.serverdescription;
					ServerList::insert(server);
				}

				// Set world path to selected one
				if ((menudata.selected_world >= 0) &&
					(menudata.selected_world < (int)worldspecs.size())) {
					worldspec = worldspecs[menudata.selected_world];
					infostream<<"Selected world: "<<worldspec.name
							<<" ["<<worldspec.path<<"]"<<std::endl;
				}

				// If local game
				if (current_address == "") {
					if (menudata.selected_world == -1) {
						error_message = wgettext("No world selected and no address "
								"provided. Nothing to do.");
						errorstream << wide_to_narrow(error_message) << std::endl;
						continue;
					}
					// Load gamespec for required game
					gamespec = findWorldSubgame(worldspec.path);
					if (!gamespec.isValid() && !commanded_gamespec.isValid()) {
						error_message = wgettext("Could not find or load game \"")
								+ narrow_to_wide(worldspec.gameid) + L"\"";
						errorstream << wide_to_narrow(error_message) << std::endl;
						continue;
					}
					if (commanded_gamespec.isValid() &&
							commanded_gamespec.id != worldspec.gameid) {
						errorstream<<"WARNING: Overriding gamespec from \""
								<< worldspec.gameid << "\" to \""
								<< commanded_gamespec.id << "\"" << std::endl;
						gamespec = commanded_gamespec;
					}

					if (!gamespec.isValid()) {
						error_message = wgettext("Invalid gamespec.");
						error_message += L" (world_gameid="
								+ narrow_to_wide(worldspec.gameid) + L")";
						errorstream << wide_to_narrow(error_message) << std::endl;
						continue;
					}
				}

				// Continue to game
				break;
			}

			// Break out of menu-game loop to shut down cleanly
			if (device->run() == false || kill == true) {
				if (g_settings_path != "") {
					g_settings->updateConfigFile(g_settings_path.c_str());
				}
				break;
			}

			/*
				Run game
			*/
			the_game(
				kill,
				random_input,
				input,
				device,
				font,
				worldspec.path,
				current_playername,
				current_password,
				current_address,
				current_port,
				error_message,
				chat_backend,
				gamespec,
				simple_singleplayer_mode
			);
			smgr->clear();

		} //try
		catch(con::PeerNotFoundException &e)
		{
			error_message = wgettext("Connection error (timed out?)");
			errorstream << wide_to_narrow(error_message) << std::endl;
		}
#ifdef NDEBUG
		catch(std::exception &e)
		{
			std::string narrow_message = "Some exception: \"";
			narrow_message += e.what();
			narrow_message += "\"";
			errorstream << narrow_message << std::endl;
			error_message = narrow_to_wide(narrow_message);
		}
#endif

		// If no main menu, show error and exit
		if (skip_main_menu) {
			if (error_message != L"") {
				verbosestream << "error_message = "
						<< wide_to_narrow(error_message) << std::endl;
				retval = 1;
			}
			break;
		}
	} // Menu-game loop


	g_menuclouds->drop();
	g_menucloudsmgr->drop();

	delete input;

	/*
		In the end, delete the Irrlicht device.
	*/
	device->drop();

#if USE_FREETYPE
	if (use_freetype)
		font->drop();
#endif

#endif // !SERVER

	// Update configuration file
	if (g_settings_path != "")
		g_settings->updateConfigFile(g_settings_path.c_str());

	// Print modified quicktune values
	{
		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;
		}
	}

	// Stop httpfetch thread (if started)
	httpfetch_cleanup();

	END_DEBUG_EXCEPTION_HANDLER(errorstream)

	debugstreams_deinit();


	return retval;
}

//END
	Commit message (Collapse)	Author	Age
*	Only set material flag on rendered meshes (#5023)	lhofhansl	2017-01-14
\|
*	Environment & IGameDef code refactoring (#4985)	Ner'zhul	2017-01-09
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	* Environment code refactoring * Cleanup includes & class declarations in client & server environment to improve build speed * ServerEnvironment::m_gamedef is now a pointer to Server instead of IGameDef, permitting to cleanup many casts. * Cleanup IGameDef * Move ITextureSource* IGameDef::getTextureSource() to Client only. * Also move ITextureSource IGameDef::tsrc() helper drop getShaderSource, getSceneManager, getSoundManager & getCamera abstract call * drop unused emerge() call * cleanup server unused functions (mentionned before) * Drop one unused parameter from ContentFeatures::updateTextures * move checkLocalPrivilege to Client * Remove some unnecessary casts * create_formspec_menu: remove IWritableTextureSource pointer, as client already knows it * Fix some comments * Change required IGameDef to Server/Client pointers * Previous change that game.cpp sometimes calls functions with Client + InventoryManager + IGameDef in same functions but it's the same objects * Remove duplicate Client pointer in GUIFormSpecMenu::GUIFormSpecMenu * drop ClientMap::sectorWasDrawn which is unused
*	Improve getPointedThing() (#4346)	Dániel Juhász	2017-01-04
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	* Improved getPointedThing() The new algorithm checks every node exactly once. Now the point and normal vector of the collision is also returned in the PointedThing (currently they are not used outside of the function). Now the CNodeDefManager keeps the union of all possible nodeboxes, so the raycast won't miss any nodes. Also if there are only small nodeboxes, getPointedThing() is exceptionally fast. Also adds unit test for VoxelLineIterator. * Cleanup, code move This commit moves getPointedThing() and Client::getSelectedActiveObject() to ClientEnvironment. The map nodes now can decide which neighbors they are connecting to (MapNode::getNeighbors()).
*	Pull occlusion check out of loop, and minor code cleanups.	Lars Hofhansl	2017-01-03
\|
*	Move PP() and PP2() macros to basic_macros.h	Rogier	2016-12-24
\| \| \| \|	Instead of redefining them everywhere.
*	Fix occlusion culling, again (#4930)	lhofhansl	2016-12-19
\|
*	Fix occlusing counting (#4922)	lhofhansl	2016-12-18
\|
*	Occlusion culling: Add comments, minor code improvements	paramat	2016-11-09
\| \| \| \| \|	Remove unnecessary code. Use '/ 2.0f' because endoff is a float.
*	Occlusion culling: Fix 'end offset' distance, half this for centre point	Lars Hofhansl	2016-11-08
\| \| \| \| \|	'endoff', the maximum diagonal of a mapblock, was incorrectly calculated. Half this value for the centre point of the mapblock.
*	Add debug priv, and allow player to display the scene as wire-frame. (#4709)	lhofhansl	2016-11-04
\|
*	Camera: remove auto tune FPS, single view range setting	RealBadAngel	2016-02-21
\|
*	Clientmap: Define p_nodes_min/max as v3s32 instead of v3s16	paramat	2016-02-19
\| \| \| \| \| \| \| \| \|	'cam_pos_nodes -/+ box_nodes_d' can exceed the range of v3s16 when a player is near the world edge using a large view range This previously caused world to disappear Create new function getBlocksInViewRange() called from updateDrawList() and renderMap() Correct code style throughout updateDrawList() and renderMap()
*	v2d & aabbox3d<f32> & sky cleanups	nerzhul	2016-02-11
\| \| \| \| \|	* Sky: rename Box => m_box and inline getBoundingBox * Uniformize aabbox3d<f32> to aabb3f
*	Remove ClientMap::m_camera_mutex	Kahrl	2016-02-09
\| \| \| \| \|	All places that lock this mutex are only called by the main thread: ClientMap::updateCamera(), ClientMap::updateDrawList(), ClientMap::renderMap(), ClientMap::renderPostFx().
*	Rename macros with two leading underscores	ShadowNinja	2015-10-14
\| \| \| \|	These names are reserved for the compiler/library implementations.
*	Change i++ to ++i	David Jones	2015-08-25
\|
*	Clean up threading	ShadowNinja	2015-08-23
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	* Rename everything. * Strip J prefix. * Change UpperCamelCase functions to lowerCamelCase. * Remove global (!) semaphore count mutex on OSX. * Remove semaphore count getter (unused, unsafe, depended on internal API functions on Windows, and used a hack on OSX). * Add `Atomic<type>`. * Make `Thread` handle thread names. * Add support for C++11 multi-threading. * Combine pthread and win32 sources. * Remove `ThreadStarted` (unused, unneeded). * Move some includes from the headers to the sources. * Move all of `Event` into its header (allows inlining with no new includes). * Make `Event` use `Semaphore` (except on Windows). * Move some porting functions into `Thread`. * Integrate logging with `Thread`. * Add threading test.
*	Improved parallax mapping. Generate heightmaps on the fly.	RealBadAngel	2015-06-14
\|
*	Move globals from main.cpp to more sane locations	Craig Robbins	2015-04-01
\| \| \| \| \| \| \| \| \| \| \| \|	Move debug streams to log.cpp\|h Move GUI-related globals to clientlauncher Move g_settings and g_settings_path to settings.cpp\|h Move g_menuclouds to clouds.cpp\|h Move g_profiler to profiler.cpp\|h
*	For usages of assert() that are meant to persist in Release builds (when ↵	Craig Robbins	2015-03-07
\| \| \| \|	NDEBUG is defined), replace those usages with persistent alternatives
*	Fix issue #2441: crash on respawn, since a conversion std::list to ↵	Loic Blot	2015-03-05
\| \| \| \| \| \| \|	std::vector on Environment.cpp * Also change some std::list to std::vector for ClientMap::renderMap * Remove disabled code in ClientMap::renderMap, disabled since a long time
*	Fix occlusion	Miguel Almeida	2015-03-02
\|
*	Replace std::list by std::vector into ClientMap::updateDrawList, ↵	Loic Blot	2015-02-17
\| \| \| \| \| \|	Map::timerUpdate and ServerMap::save(). This will speedup the loop reading into those functions
*	Fix all warnings and remove -Wno-unused-but-set cflag	kwolekr	2015-01-18
\|
*	Add display_gamma option for client	Craig Robbins	2014-12-31
\|
*	Performance of main client loop up to 2x faster In places, up to 3 times faster	Craig Robbins	2014-12-07
\| \| \| \| \|	NOTE 1: This does not mean a 2x increase in framerate. Increase in fps may be up to 1-2fps NOTE 2: This local 'caching' of settings is not optimal and an alternative solution will be worked on after 0.4.11 is released
*	Avoid doing a full material compare if not even first texture does match	sapier	2014-06-23
\|
*	Add support for interlaced polarized 3d screens	sapier	2014-05-18
\| \| \| \|	Add (experimental) support for topbottom as well as sidebyside 3d mode
*	Add player:set_eye_offset() by @MirceaKitsune and clean up	BlockMen	2014-04-12
\|
*	Add third person view	BlockMen	2014-04-12
\|
*	Fix rendering glitches when far from the center of the map	Novatux	2014-03-04
\|
*	Cleanup jthread and fix win32 build	sapier	2013-12-01
\|
*	Fix and improve view range tuner	Perttu Ahola	2013-08-03
\|
*	Migrate to STL containers/algorithms.	Ilya Zhuravlev	2013-03-11
\|
*	Update Copyright Years	Sfan5	2013-02-24
\|
*	Change Minetest-c55 to Minetest	PilzAdam	2013-02-24
\|
*	Don't see through nodes without noclip privileges	ShadowNinja	2013-02-10
\|
*	Fix automagic render distance tuner	Perttu Ahola	2012-12-06
\|
*	Added video settings filter options via config file - second try :-)	Vanessa Ezekowitz	2012-11-09
\| \| \| \| \| \| \| \| \|	Set one or more of these in the config to turn the related option on: mip_map = 1 anisotropic_filter = 1 bilinear_filter = 1 trilinear_filter = 1
*	Reorganize ClientMap rendering code for a bit more performance	Perttu Ahola	2012-09-04
\| \| \| \| \|	- Don't select blocks for drawing in every frame - Sort meshbuffers by material before drawing
*	Define M_PI on MSVC	Perttu Ahola	2012-07-21
\|
*	Properly and efficiently use split utility headers	Perttu Ahola	2012-06-17
\|
*	Switch the license to be LGPLv2/later, with small parts still remaining as ↵	Perttu Ahola	2012-06-05
\| \| \| \|	GPLv2/later, by agreement of major contributors
*	No occlusion culling when free_move is on and camera is inside ground	Perttu Ahola	2012-03-28
\|
*	Try to make background/fog/sky color selection work better	Perttu Ahola	2012-03-27
\|
*	Fix getVisibleBrightness() to return sunlight visibility correctly even if ↵	Perttu Ahola	2012-03-18
\| \| \| \|	not much of world has been loaded
*	Dynamic sky, fog and cloud colors; sun and moon	Perttu Ahola	2012-03-18
\|
*	Move ClientMap to clientmap.{h,cpp}	Perttu Ahola	2012-03-16