src/client/clientlauncher.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "gui/mainmenumanager.h"
  21 #include "clouds.h"
  22 #include "server.h"
  23 #include "filesys.h"
  24 #include "gui/guiMainMenu.h"
  25 #include "game.h"
  26 #include "player.h"
  27 #include "chat.h"
  28 #include "gettext.h"
  29 #include "profiler.h"
  30 #include "serverlist.h"
  31 #include "gui/guiEngine.h"
  32 #include "fontengine.h"
  33 #include "clientlauncher.h"
  34 #include "version.h"
  35 #include "renderingengine.h"
  36 #include "network/networkexceptions.h"
  37
  38 #if USE_SOUND
  39         #include "sound_openal.h"
  40 #endif
  41 #ifdef __ANDROID__
  42         #include "porting.h"
  43 #endif
  44
  45 /* mainmenumanager.h
  46  */
  47 gui::IGUIEnvironment *guienv = nullptr;
  48 gui::IGUIStaticText *guiroot = nullptr;
  49 MainMenuManager g_menumgr;
  50
  51 bool isMenuActive()
  52 {
  53         return g_menumgr.menuCount() != 0;
  54 }
  55
  56 // Passed to menus to allow disconnecting and exiting
  57 MainGameCallback *g_gamecallback = nullptr;
  58
  59 #if 0
  60 // This can be helpful for the next code cleanup
  61 static void dump_start_data(const GameStartData &data)
  62 {
  63         std::cout <<
  64                 "\ndedicated   " << (int)data.is_dedicated_server <<
  65                 "\nport        " << data.socket_port <<
  66                 "\nworld_path  " << data.world_spec.path <<
  67                 "\nworld game  " << data.world_spec.gameid <<
  68                 "\ngame path   " << data.game_spec.path <<
  69                 "\nplayer name " << data.name <<
  70                 "\naddress     " << data.address << std::endl;
  71 }
  72 #endif
  73
  74 ClientLauncher::~ClientLauncher()
  75 {
  76         delete receiver;
  77
  78         delete input;
  79
  80         delete g_fontengine;
  81         delete g_gamecallback;
  82
  83         delete m_rendering_engine;
  84
  85 #if USE_SOUND
  86         g_sound_manager_singleton.reset();
  87 #endif
  88 }
  89
  90
  91 bool ClientLauncher::run(GameStartData &start_data, const Settings &cmd_args)
  92 {
  93         /* This function is called when a client must be started.
  94          * Covered cases:
  95          *   - Singleplayer (address but map provided)
  96          *   - Join server (no map but address provided)
  97          *   - Local server (for main menu only)
  98         */
  99
 100         init_args(start_data, cmd_args);
 101
 102         // List video modes if requested
 103         if (list_video_modes)
 104                 return m_rendering_engine->print_video_modes();
 105
 106 #if USE_SOUND
 107         if (g_settings->getBool("enable_sound"))
 108                 g_sound_manager_singleton = createSoundManagerSingleton();
 109 #endif
 110
 111         if (!init_engine()) {
 112                 errorstream << "Could not initialize game engine." << std::endl;
 113                 return false;
 114         }
 115
 116         // Speed tests (done after irrlicht is loaded to get timer)
 117         if (cmd_args.getFlag("speedtests")) {
 118                 dstream << "Running speed tests" << std::endl;
 119                 speed_tests();
 120                 return true;
 121         }
 122
 123         if (m_rendering_engine->get_video_driver() == NULL) {
 124                 errorstream << "Could not initialize video driver." << std::endl;
 125                 return false;
 126         }
 127
 128         m_rendering_engine->setupTopLevelWindow(PROJECT_NAME_C);
 129
 130         /*
 131                 This changes the minimum allowed number of vertices in a VBO.
 132                 Default is 500.
 133         */
 134         //driver->setMinHardwareBufferVertexCount(50);
 135
 136         // Create game callback for menus
 137         g_gamecallback = new MainGameCallback();
 138
 139         m_rendering_engine->setResizable(true);
 140
 141         init_input();
 142
 143         m_rendering_engine->get_scene_manager()->getParameters()->
 144                 setAttribute(scene::ALLOW_ZWRITE_ON_TRANSPARENT, true);
 145
 146         guienv = m_rendering_engine->get_gui_env();
 147         skin = guienv->getSkin();
 148         skin->setColor(gui::EGDC_BUTTON_TEXT, video::SColor(255, 255, 255, 255));
 149         skin->setColor(gui::EGDC_3D_LIGHT, video::SColor(0, 0, 0, 0));
 150         skin->setColor(gui::EGDC_3D_HIGH_LIGHT, video::SColor(255, 30, 30, 30));
 151         skin->setColor(gui::EGDC_3D_SHADOW, video::SColor(255, 0, 0, 0));
 152         skin->setColor(gui::EGDC_HIGH_LIGHT, video::SColor(255, 70, 120, 50));
 153         skin->setColor(gui::EGDC_HIGH_LIGHT_TEXT, video::SColor(255, 255, 255, 255));
 154 #ifdef __ANDROID__
 155         float density = porting::getDisplayDensity();
 156         skin->setSize(gui::EGDS_CHECK_BOX_WIDTH, (s32)(17.0f * density));
 157         skin->setSize(gui::EGDS_SCROLLBAR_SIZE, (s32)(14.0f * density));
 158         skin->setSize(gui::EGDS_WINDOW_BUTTON_WIDTH, (s32)(15.0f * density));
 159         if (density > 1.5f) {
 160                 std::string sprite_path = porting::path_user + "/textures/base/pack/";
 161                 if (density > 3.5f)
 162                         sprite_path.append("checkbox_64.png");
 163                 else if (density > 2.0f)
 164                         sprite_path.append("checkbox_32.png");
 165                 else
 166                         sprite_path.append("checkbox_16.png");
 167                 // Texture dimensions should be a power of 2
 168                 gui::IGUISpriteBank *sprites = skin->getSpriteBank();
 169                 video::IVideoDriver *driver = m_rendering_engine->get_video_driver();
 170                 video::ITexture *sprite_texture = driver->getTexture(sprite_path.c_str());
 171                 if (sprite_texture) {
 172                         s32 sprite_id = sprites->addTextureAsSprite(sprite_texture);
 173                         if (sprite_id != -1)
 174                                 skin->setIcon(gui::EGDI_CHECK_BOX_CHECKED, sprite_id);
 175                 }
 176         }
 177 #endif
 178         g_fontengine = new FontEngine(guienv);
 179         FATAL_ERROR_IF(g_fontengine == NULL, "Font engine creation failed.");
 180
 181         // Irrlicht 1.8 input colours
 182         skin->setColor(gui::EGDC_EDITABLE, video::SColor(255, 128, 128, 128));
 183         skin->setColor(gui::EGDC_FOCUSED_EDITABLE, video::SColor(255, 96, 134, 49));
 184
 185         // Create the menu clouds
 186         if (!g_menucloudsmgr)
 187                 g_menucloudsmgr = m_rendering_engine->get_scene_manager()->createNewSceneManager();
 188         if (!g_menuclouds)
 189                 g_menuclouds = new Clouds(g_menucloudsmgr, -1, rand());
 190         g_menuclouds->setHeight(100.0f);
 191         g_menuclouds->update(v3f(0, 0, 0), video::SColor(255, 240, 240, 255));
 192         scene::ICameraSceneNode* camera;
 193         camera = g_menucloudsmgr->addCameraSceneNode(NULL, v3f(0, 0, 0), v3f(0, 60, 100));
 194         camera->setFarValue(10000);
 195
 196         /*
 197                 GUI stuff
 198         */
 199
 200         ChatBackend chat_backend;
 201
 202         // If an error occurs, this is set to something by menu().
 203         // It is then displayed before the menu shows on the next call to menu()
 204         std::string error_message;
 205         bool reconnect_requested = false;
 206
 207         bool first_loop = true;
 208
 209         /*
 210                 Menu-game loop
 211         */
 212         bool retval = true;
 213         bool *kill = porting::signal_handler_killstatus();
 214
 215         while (m_rendering_engine->run() && !*kill &&
 216                 !g_gamecallback->shutdown_requested) {
 217                 // Set the window caption
 218                 const wchar_t *text = wgettext("Main Menu");
 219                 m_rendering_engine->get_raw_device()->
 220                         setWindowCaption((utf8_to_wide(PROJECT_NAME_C) +
 221                         L" " + utf8_to_wide(g_version_hash) +
 222                         L" [" + text + L"]").c_str());
 223                 delete[] text;
 224
 225                 try {   // This is used for catching disconnects
 226
 227                         m_rendering_engine->get_gui_env()->clear();
 228
 229                         /*
 230                                 We need some kind of a root node to be able to add
 231                                 custom gui elements directly on the screen.
 232                                 Otherwise they won't be automatically drawn.
 233                         */
 234                         guiroot = m_rendering_engine->get_gui_env()->addStaticText(L"",
 235                                 core::rect<s32>(0, 0, 10000, 10000));
 236
 237                         bool game_has_run = launch_game(error_message, reconnect_requested,
 238                                 start_data, cmd_args);
 239
 240                         // Reset the reconnect_requested flag
 241                         reconnect_requested = false;
 242
 243                         // If skip_main_menu, we only want to startup once
 244                         if (skip_main_menu && !first_loop)
 245                                 break;
 246
 247                         first_loop = false;
 248
 249                         if (!game_has_run) {
 250                                 if (skip_main_menu)
 251                                         break;
 252
 253                                 continue;
 254                         }
 255
 256                         // Break out of menu-game loop to shut down cleanly
 257                         if (!m_rendering_engine->run() || *kill) {
 258                                 if (!g_settings_path.empty())
 259                                         g_settings->updateConfigFile(g_settings_path.c_str());
 260                                 break;
 261                         }
 262
 263                         m_rendering_engine->get_video_driver()->setTextureCreationFlag(
 264                                         video::ETCF_CREATE_MIP_MAPS, g_settings->getBool("mip_map"));
 265
 266 #ifdef HAVE_TOUCHSCREENGUI
 267                         receiver->m_touchscreengui = new TouchScreenGUI(m_rendering_engine->get_raw_device(), receiver);
 268                         g_touchscreengui = receiver->m_touchscreengui;
 269 #endif
 270
 271                         the_game(
 272                                 kill,
 273                                 input,
 274                                 m_rendering_engine,
 275                                 start_data,
 276                                 error_message,
 277                                 chat_backend,
 278                                 &reconnect_requested
 279                         );
 280                         m_rendering_engine->get_scene_manager()->clear();
 281
 282 #ifdef HAVE_TOUCHSCREENGUI
 283                         delete g_touchscreengui;
 284                         g_touchscreengui = NULL;
 285                         receiver->m_touchscreengui = NULL;
 286 #endif
 287
 288                 } //try
 289                 catch (con::PeerNotFoundException &e) {
 290                         error_message = gettext("Connection error (timed out?)");
 291                         errorstream << error_message << std::endl;
 292                 }
 293
 294 #ifdef NDEBUG
 295                 catch (std::exception &e) {
 296                         std::string error_message = "Some exception: \"";
 297                         error_message += e.what();
 298                         error_message += "\"";
 299                         errorstream << error_message << std::endl;
 300                 }
 301 #endif
 302
 303                 // If no main menu, show error and exit
 304                 if (skip_main_menu) {
 305                         if (!error_message.empty()) {
 306                                 verbosestream << "error_message = "
 307                                               << error_message << std::endl;
 308                                 retval = false;
 309                         }
 310                         break;
 311                 }
 312         } // Menu-game loop
 313
 314         g_menuclouds->drop();
 315         g_menucloudsmgr->drop();
 316
 317         return retval;
 318 }
 319
 320 void ClientLauncher::init_args(GameStartData &start_data, const Settings &cmd_args)
 321 {
 322         skip_main_menu = cmd_args.getFlag("go");
 323
 324         start_data.address = g_settings->get("address");
 325         if (cmd_args.exists("address")) {
 326                 // Join a remote server
 327                 start_data.address = cmd_args.get("address");
 328                 start_data.world_path.clear();
 329                 start_data.name = g_settings->get("name");
 330         }
 331         if (!start_data.world_path.empty()) {
 332                 // Start a singleplayer instance
 333                 start_data.address = "";
 334         }
 335
 336         if (cmd_args.exists("name"))
 337                 start_data.name = cmd_args.get("name");
 338
 339         list_video_modes = cmd_args.getFlag("videomodes");
 340
 341         random_input = g_settings->getBool("random_input")
 342                         || cmd_args.getFlag("random-input");
 343 }
 344
 345 bool ClientLauncher::init_engine()
 346 {
 347         receiver = new MyEventReceiver();
 348         m_rendering_engine = new RenderingEngine(receiver);
 349         return m_rendering_engine->get_raw_device() != nullptr;
 350 }
 351
 352 void ClientLauncher::init_input()
 353 {
 354         if (random_input)
 355                 input = new RandomInputHandler();
 356         else
 357                 input = new RealInputHandler(receiver);
 358
 359         if (g_settings->getBool("enable_joysticks")) {
 360                 irr::core::array<irr::SJoystickInfo> infos;
 361                 std::vector<irr::SJoystickInfo> joystick_infos;
 362
 363                 // Make sure this is called maximum once per
 364                 // irrlicht device, otherwise it will give you
 365                 // multiple events for the same joystick.
 366                 if (m_rendering_engine->get_raw_device()->activateJoysticks(infos)) {
 367                         infostream << "Joystick support enabled" << std::endl;
 368                         joystick_infos.reserve(infos.size());
 369                         for (u32 i = 0; i < infos.size(); i++) {
 370                                 joystick_infos.push_back(infos[i]);
 371                         }
 372                         input->joystick.onJoystickConnect(joystick_infos);
 373                 } else {
 374                         errorstream << "Could not activate joystick support." << std::endl;
 375                 }
 376         }
 377 }
 378
 379 bool ClientLauncher::launch_game(std::string &error_message,
 380                 bool reconnect_requested, GameStartData &start_data,
 381                 const Settings &cmd_args)
 382 {
 383         // Prepare and check the start data to launch a game
 384         std::string error_message_lua = error_message;
 385         error_message.clear();
 386
 387         if (cmd_args.exists("password"))
 388                 start_data.password = cmd_args.get("password");
 389
 390         if (cmd_args.exists("password-file")) {
 391                 std::ifstream passfile(cmd_args.get("password-file"));
 392                 if (passfile.good()) {
 393                         getline(passfile, start_data.password);
 394                 } else {
 395                         error_message = gettext("Provided password file "
 396                                         "failed to open: ")
 397                                         + cmd_args.get("password-file");
 398                         errorstream << error_message << std::endl;
 399                         return false;
 400                 }
 401         }
 402
 403         // If a world was commanded, append and select it
 404         // This is provieded by "get_world_from_cmdline()", main.cpp
 405         if (!start_data.world_path.empty()) {
 406                 auto &spec = start_data.world_spec;
 407
 408                 spec.path = start_data.world_path;
 409                 spec.gameid = getWorldGameId(spec.path, true);
 410                 spec.name = _("[--world parameter]");
 411
 412                 if (spec.gameid.empty()) {      // Create new
 413                         spec.gameid = g_settings->get("default_game");
 414                         spec.name += " [new]";
 415                 }
 416         }
 417
 418         /* Show the GUI menu
 419          */
 420         std::string server_name, server_description;
 421         if (!skip_main_menu) {
 422                 // Initialize menu data
 423                 // TODO: Re-use existing structs (GameStartData)
 424                 MainMenuData menudata;
 425                 menudata.address                         = start_data.address;
 426                 menudata.name                            = start_data.name;
 427                 menudata.password                        = start_data.password;
 428                 menudata.port                            = itos(start_data.socket_port);
 429                 menudata.script_data.errormessage        = error_message_lua;
 430                 menudata.script_data.reconnect_requested = reconnect_requested;
 431
 432                 main_menu(&menudata);
 433
 434                 // Skip further loading if there was an exit signal.
 435                 if (*porting::signal_handler_killstatus())
 436                         return false;
 437
 438                 if (!menudata.script_data.errormessage.empty()) {
 439                         /* The calling function will pass this back into this function upon the
 440                          * next iteration (if any) causing it to be displayed by the GUI
 441                          */
 442                         error_message = menudata.script_data.errormessage;
 443                         return false;
 444                 }
 445
 446                 int newport = stoi(menudata.port);
 447                 if (newport != 0)
 448                         start_data.socket_port = newport;
 449
 450                 // Update world information using main menu data
 451                 std::vector<WorldSpec> worldspecs = getAvailableWorlds();
 452
 453                 int world_index = menudata.selected_world;
 454                 if (world_index >= 0 && world_index < (int)worldspecs.size()) {
 455                         g_settings->set("selected_world_path",
 456                                         worldspecs[world_index].path);
 457                         start_data.world_spec = worldspecs[world_index];
 458                 }
 459
 460                 start_data.name = menudata.name;
 461                 start_data.password = menudata.password;
 462                 start_data.address = std::move(menudata.address);
 463                 server_name = menudata.servername;
 464                 server_description = menudata.serverdescription;
 465
 466                 start_data.local_server = !menudata.simple_singleplayer_mode &&
 467                         start_data.address.empty();
 468         } else {
 469                 start_data.local_server = !start_data.world_path.empty() &&
 470                         start_data.address.empty() && !start_data.name.empty();
 471         }
 472
 473         if (!m_rendering_engine->run())
 474                 return false;
 475
 476         if (!start_data.isSinglePlayer() && start_data.name.empty()) {
 477                 error_message = gettext("Please choose a name!");
 478                 errorstream << error_message << std::endl;
 479                 return false;
 480         }
 481
 482         // If using simple singleplayer mode, override
 483         if (start_data.isSinglePlayer()) {
 484                 start_data.name = "singleplayer";
 485                 start_data.password = "";
 486                 start_data.socket_port = myrand_range(49152, 65535);
 487         } else {
 488                 g_settings->set("name", start_data.name);
 489         }
 490
 491         if (start_data.name.length() > PLAYERNAME_SIZE - 1) {
 492                 error_message = gettext("Player name too long.");
 493                 start_data.name.resize(PLAYERNAME_SIZE);
 494                 g_settings->set("name", start_data.name);
 495                 return false;
 496         }
 497
 498         auto &worldspec = start_data.world_spec;
 499         infostream << "Selected world: " << worldspec.name
 500                    << " [" << worldspec.path << "]" << std::endl;
 501
 502         if (start_data.address.empty()) {
 503                 // For singleplayer and local server
 504                 if (worldspec.path.empty()) {
 505                         error_message = gettext("No world selected and no address "
 506                                         "provided. Nothing to do.");
 507                         errorstream << error_message << std::endl;
 508                         return false;
 509                 }
 510
 511                 if (!fs::PathExists(worldspec.path)) {
 512                         error_message = gettext("Provided world path doesn't exist: ")
 513                                         + worldspec.path;
 514                         errorstream << error_message << std::endl;
 515                         return false;
 516                 }
 517
 518                 // Load gamespec for required game
 519                 start_data.game_spec = findWorldSubgame(worldspec.path);
 520                 if (!start_data.game_spec.isValid()) {
 521                         error_message = gettext("Could not find or load game \"")
 522                                         + worldspec.gameid + "\"";
 523                         errorstream << error_message << std::endl;
 524                         return false;
 525                 }
 526
 527                 if (porting::signal_handler_killstatus())
 528                         return true;
 529
 530                 if (!start_data.game_spec.isValid()) {
 531                         error_message = gettext("Invalid gamespec.");
 532                         error_message += " (world.gameid=" + worldspec.gameid + ")";
 533                         errorstream << error_message << std::endl;
 534                         return false;
 535                 }
 536         }
 537
 538         start_data.world_path = start_data.world_spec.path;
 539         return true;
 540 }
 541
 542 void ClientLauncher::main_menu(MainMenuData *menudata)
 543 {
 544         bool *kill = porting::signal_handler_killstatus();
 545         video::IVideoDriver *driver = m_rendering_engine->get_video_driver();
 546
 547         infostream << "Waiting for other menus" << std::endl;
 548         while (m_rendering_engine->run() && !*kill) {
 549                 if (!isMenuActive())
 550                         break;
 551                 driver->beginScene(true, true, video::SColor(255, 128, 128, 128));
 552                 m_rendering_engine->get_gui_env()->drawAll();
 553                 driver->endScene();
 554                 // On some computers framerate doesn't seem to be automatically limited
 555                 sleep_ms(25);
 556         }
 557         infostream << "Waited for other menus" << std::endl;
 558
 559         // Cursor can be non-visible when coming from the game
 560 #ifndef ANDROID
 561         m_rendering_engine->get_raw_device()->getCursorControl()->setVisible(true);
 562 #endif
 563
 564         /* show main menu */
 565         GUIEngine mymenu(&input->joystick, guiroot, m_rendering_engine, &g_menumgr, menudata, *kill);
 566
 567         /* leave scene manager in a clean state */
 568         m_rendering_engine->get_scene_manager()->clear();
 569 }
 570
 571 void ClientLauncher::speed_tests()
 572 {
 573         // volatile to avoid some potential compiler optimisations
 574         volatile static s16 temp16;
 575         volatile static f32 tempf;
 576         static v3f tempv3f1;
 577         static v3f tempv3f2;
 578         static std::string tempstring;
 579         static std::string tempstring2;
 580
 581         tempv3f1 = v3f();
 582         tempv3f2 = v3f();
 583         tempstring.clear();
 584         tempstring2.clear();
 585
 586         {
 587                 infostream << "The following test should take around 20ms." << std::endl;
 588                 TimeTaker timer("Testing std::string speed");
 589                 const u32 jj = 10000;
 590                 for (u32 j = 0; j < jj; j++) {
 591                         tempstring = "";
 592                         tempstring2 = "";
 593                         const u32 ii = 10;
 594                         for (u32 i = 0; i < ii; i++) {
 595                                 tempstring2 += "asd";
 596                         }
 597                         for (u32 i = 0; i < ii+1; i++) {
 598                                 tempstring += "asd";
 599                                 if (tempstring == tempstring2)
 600                                         break;
 601                         }
 602                 }
 603         }
 604
 605         infostream << "All of the following tests should take around 100ms each."
 606                    << std::endl;
 607
 608         {
 609                 TimeTaker timer("Testing floating-point conversion speed");
 610                 tempf = 0.001;
 611                 for (u32 i = 0; i < 4000000; i++) {
 612                         temp16 += tempf;
 613                         tempf += 0.001;
 614                 }
 615         }
 616
 617         {
 618                 TimeTaker timer("Testing floating-point vector speed");
 619
 620                 tempv3f1 = v3f(1, 2, 3);
 621                 tempv3f2 = v3f(4, 5, 6);
 622                 for (u32 i = 0; i < 10000000; i++) {
 623                         tempf += tempv3f1.dotProduct(tempv3f2);
 624                         tempv3f2 += v3f(7, 8, 9);
 625                 }
 626         }
 627
 628         {
 629                 TimeTaker timer("Testing std::map speed");
 630
 631                 std::map<v2s16, f32> map1;
 632                 tempf = -324;
 633                 const s16 ii = 300;
 634                 for (s16 y = 0; y < ii; y++) {
 635                         for (s16 x = 0; x < ii; x++) {
 636                                 map1[v2s16(x, y)] =  tempf;
 637                                 tempf += 1;
 638                         }
 639                 }
 640                 for (s16 y = ii - 1; y >= 0; y--) {
 641                         for (s16 x = 0; x < ii; x++) {
 642                                 tempf = map1[v2s16(x, y)];
 643                         }
 644                 }
 645         }
 646
 647         {
 648                 infostream << "Around 5000/ms should do well here." << std::endl;
 649                 TimeTaker timer("Testing mutex speed");
 650
 651                 std::mutex m;
 652                 u32 n = 0;
 653                 u32 i = 0;
 654                 do {
 655                         n += 10000;
 656                         for (; i < n; i++) {
 657                                 m.lock();
 658                                 m.unlock();
 659                         }
 660                 }
 661                 // Do at least 10ms
 662                 while(timer.getTimerTime() < 10);
 663
 664                 u32 dtime = timer.stop();
 665                 u32 per_ms = n / dtime;
 666                 infostream << "Done. " << dtime << "ms, " << per_ms << "/ms" << std::endl;
 667         }
 668 }