# openttd.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD 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, version 2.
    00006  * OpenTTD 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.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "stdafx.h"
    00013
    00014 #include "blitter/factory.hpp"
    00015 #include "sound/sound_driver.hpp"
    00016 #include "music/music_driver.hpp"
    00017 #include "video/video_driver.hpp"
    00018
    00019 #include "fontcache.h"
    00020 #include "gui.h"
    00021 #include "sound_func.h"
    00022 #include "window_func.h"
    00023
    00024 #include "base_media_base.h"
    00025 #include "saveload/saveload.h"
    00026 #include "company_func.h"
    00027 #include "command_func.h"
    00028 #include "news_func.h"
    00029 #include "fios.h"
    00030 #include "aircraft.h"
    00031 #include "roadveh.h"
    00032 #include "train.h"
    00033 #include "ship.h"
    00034 #include "console_func.h"
    00035 #include "screenshot.h"
    00036 #include "network/network.h"
    00037 #include "network/network_func.h"
    00038 #include "signs_base.h"
    00039 #include "ai/ai.hpp"
    00040 #include "ai/ai_config.hpp"
    00041 #include "settings_func.h"
    00042 #include "genworld.h"
    00043 #include "group.h"
    00044 #include "strings_func.h"
    00045 #include "date_func.h"
    00046 #include "vehicle_func.h"
    00047 #include "gamelog.h"
    00048 #include "animated_tile_func.h"
    00049 #include "roadstop_base.h"
    00050 #include "elrail_func.h"
    00051 #include "rev.h"
    00052 #include "highscore.h"
    00053 #include "thread/thread.h"
    00054 #include "station_base.h"
    00055 #include "crashlog.h"
    00056 #include "engine_func.h"
    00057 #include "core/random_func.hpp"
    00058 #include "rail_gui.h"
    00059 #include "core/backup_type.hpp"
    00060 #include "hotkeys.h"
    00061 #include "newgrf.h"
    00062
    00063
    00064 #include "town.h"
    00065 #include "industry.h"
    00066
    00067 #include <stdarg.h>
    00068
    00069 #include "table/strings.h"
    00070
    00071 StringID _switch_mode_errorstr;
    00072
    00073 void CallLandscapeTick();
    00074 void IncreaseDate();
    00075 void DoPaletteAnimations();
    00076 void MusicLoop();
    00077 void ResetMusic();
    00078 void CallWindowTickEvent();
    00079
    00080 extern void SetDifficultyLevel(int mode, DifficultySettings *gm_opt);
    00081 extern Company *DoStartupNewCompany(bool is_ai, CompanyID company = INVALID_COMPANY);
    00082 extern void ShowOSErrorBox(const char *buf, bool system);
    00083 extern char *_config_file;
    00084
    00090 void CDECL usererror(const char *s, ...)
    00091 {
    00092   va_list va;
    00093   char buf[512];
    00094
    00095   va_start(va, s);
    00096   vsnprintf(buf, lengthof(buf), s, va);
    00097   va_end(va);
    00098
    00099   ShowOSErrorBox(buf, false);
    00100   if (_video_driver != NULL) _video_driver->Stop();
    00101
    00102   exit(1);
    00103 }
    00104
    00110 void CDECL error(const char *s, ...)
    00111 {
    00112   va_list va;
    00113   char buf[512];
    00114
    00115   va_start(va, s);
    00116   vsnprintf(buf, lengthof(buf), s, va);
    00117   va_end(va);
    00118
    00119   ShowOSErrorBox(buf, true);
    00120
    00121   /* Set the error message for the crash log and then invoke it. */
    00122   CrashLog::SetErrorMessage(buf);
    00123   abort();
    00124 }
    00125
    00130 void CDECL ShowInfoF(const char *str, ...)
    00131 {
    00132   va_list va;
    00133   char buf[1024];
    00134   va_start(va, str);
    00135   vsnprintf(buf, lengthof(buf), str, va);
    00136   va_end(va);
    00137   ShowInfo(buf);
    00138 }
    00139
    00143 static void ShowHelp()
    00144 {
    00145   char buf[8192];
    00146   char *p = buf;
    00147
    00148   p += seprintf(p, lastof(buf), "OpenTTD %s\n", _openttd_revision);
    00149   p = strecpy(p,
    00150     "\n"
    00151     "\n"
    00152     "Command line options:\n"
    00153     "  -v drv              = Set video driver (see below)\n"
    00154     "  -s drv              = Set sound driver (see below) (param bufsize,hz)\n"
    00155     "  -m drv              = Set music driver (see below)\n"
    00156     "  -b drv              = Set the blitter to use (see below)\n"
    00157     "  -r res              = Set resolution (for instance 800x600)\n"
    00158     "  -h                  = Display this help text\n"
    00159     "  -t year             = Set starting year\n"
    00160     "  -d [[fac=]lvl[,...]]= Debug mode\n"
    00161     "  -e                  = Start Editor\n"
    00162     "  -g [savegame]       = Start new/save game immediately\n"
    00163     "  -G seed             = Set random seed\n"
    00164 #if defined(ENABLE_NETWORK)
    00165     "  -n [ip:port#company]= Start networkgame\n"
    00166     "  -p password         = Password to join server\n"
    00167     "  -P password         = Password to join company\n"
    00168     "  -D [ip][:port]      = Start dedicated server\n"
    00169     "  -l ip[:port]        = Redirect DEBUG()\n"
    00170 #if !defined(__MORPHOS__) && !defined(__AMIGA__) && !defined(WIN32)
    00171     "  -f                  = Fork into the background (dedicated only)\n"
    00172 #endif
    00173 #endif /* ENABLE_NETWORK */
    00174     "  -i palette          = Force to use the DOS (0) or Windows (1) palette\n"
    00175     "                          (defines default setting when adding newgrfs)\n"
    00176     "                        Default value (2) lets OpenTTD use the palette\n"
    00177     "                          specified in graphics set file (see below)\n"
    00178     "  -I graphics_set     = Force the graphics set (see below)\n"
    00179     "  -S sounds_set       = Force the sounds set (see below)\n"
    00180     "  -M music_set        = Force the music set (see below)\n"
    00181     "  -c config_file      = Use 'config_file' instead of 'openttd.cfg'\n"
    00182     "  -x                  = Do not automatically save to config file on exit\n"
    00183     "\n",
    00184     lastof(buf)
    00185   );
    00186
    00187   /* List the graphics packs */
    00188   p = BaseGraphics::GetSetsList(p, lastof(buf));
    00189
    00190   /* List the sounds packs */
    00191   p = BaseSounds::GetSetsList(p, lastof(buf));
    00192
    00193   /* List the music packs */
    00194   p = BaseMusic::GetSetsList(p, lastof(buf));
    00195
    00196   /* List the drivers */
    00197   p = VideoDriverFactoryBase::GetDriversInfo(p, lastof(buf));
    00198
    00199   /* List the blitters */
    00200   p = BlitterFactoryBase::GetBlittersInfo(p, lastof(buf));
    00201
    00202   /* We need to initialize the AI, so it finds the AIs */
    00203   TarScanner::DoScan();
    00204   AI::Initialize();
    00205   p = AI::GetConsoleList(p, lastof(buf), true);
    00206   AI::Uninitialize(true);
    00207
    00208   /* ShowInfo put output to stderr, but version information should go
    00209    * to stdout; this is the only exception */
    00210 #if !defined(WIN32) && !defined(WIN64)
    00211   printf("%s\n", buf);
    00212 #else
    00213   ShowInfo(buf);
    00214 #endif
    00215 }
    00216
    00217
    00218 struct MyGetOptData {
    00219   char *opt;
    00220   int numleft;
    00221   char **argv;
    00222   const char *options;
    00223   char *cont;
    00224
    00225   MyGetOptData(int argc, char **argv, const char *options)
    00226   {
    00227     opt = NULL;
    00228     numleft = argc;
    00229     this->argv = argv;
    00230     this->options = options;
    00231     cont = NULL;
    00232   }
    00233 };
    00234
    00235 static int MyGetOpt(MyGetOptData *md)
    00236 {
    00237   char *s = md->cont;
    00238   if (s != NULL) {
    00239     goto md_continue_here;
    00240   }
    00241
    00242   for (;;) {
    00243     if (--md->numleft < 0) return -1;
    00244
    00245     s = *md->argv++;
    00246     if (*s == '-') {
    00247 md_continue_here:;
    00248       s++;
    00249       if (*s != 0) {
    00250         const char *r;
    00251         /* Found argument, try to locate it in options. */
    00252         if (*s == ':' || (r = strchr(md->options, *s)) == NULL) {
    00253           /* ERROR! */
    00254           return -2;
    00255         }
    00256         if (r[1] == ':') {
    00257           char *t;
    00258           /* Item wants an argument. Check if the argument follows, or if it comes as a separate arg. */
    00259           if (!*(t = s + 1)) {
    00260             /* It comes as a separate arg. Check if out of args? */
    00261             if (--md->numleft < 0 || *(t = *md->argv) == '-') {
    00262               /* Check if item is optional? */
    00263               if (r[2] != ':') return -2;
    00264               md->numleft++;
    00265               t = NULL;
    00266             } else {
    00267               md->argv++;
    00268             }
    00269           }
    00270           md->opt = t;
    00271           md->cont = NULL;
    00272           return *s;
    00273         }
    00274         md->opt = NULL;
    00275         md->cont = s;
    00276         return *s;
    00277       }
    00278     } else {
    00279       /* This is currently not supported. */
    00280       return -2;
    00281     }
    00282   }
    00283 }
    00284
    00291 static void ParseResolution(Dimension *res, const char *s)
    00292 {
    00293   const char *t = strchr(s, 'x');
    00294   if (t == NULL) {
    00295     ShowInfoF("Invalid resolution '%s'", s);
    00296     return;
    00297   }
    00298
    00299   res->width  = max(strtoul(s, NULL, 0), 64UL);
    00300   res->height = max(strtoul(t + 1, NULL, 0), 64UL);
    00301 }
    00302
    00303 static void InitializeDynamicVariables()
    00304 {
    00305   /* Dynamic stuff needs to be initialized somewhere... */
    00306   _engine_mngr.ResetToDefaultMapping();
    00307   _house_mngr.ResetMapping();
    00308   _industry_mngr.ResetMapping();
    00309   _industile_mngr.ResetMapping();
    00310   _airport_mngr.ResetMapping();
    00311   _airporttile_mngr.ResetMapping();
    00312 }
    00313
    00314
    00319 static void ShutdownGame()
    00320 {
    00321   IConsoleFree();
    00322
    00323   if (_network_available) NetworkShutDown(); // Shut down the network and close any open connections
    00324
    00325   DriverFactoryBase::ShutdownDrivers();
    00326
    00327   UnInitWindowSystem();
    00328
    00329   /* stop the AI */
    00330   AI::Uninitialize(false);
    00331
    00332   /* Uninitialize variables that are allocated dynamically */
    00333   GamelogReset();
    00334   _town_pool.CleanPool();
    00335   _industry_pool.CleanPool();
    00336   _station_pool.CleanPool();
    00337   _roadstop_pool.CleanPool();
    00338   _vehicle_pool.CleanPool();
    00339   _sign_pool.CleanPool();
    00340   _order_pool.CleanPool();
    00341   _group_pool.CleanPool();
    00342   _cargopacket_pool.CleanPool();
    00343   _engine_pool.CleanPool();
    00344   _company_pool.CleanPool();
    00345
    00346 #ifdef ENABLE_NETWORK
    00347   free(_config_file);
    00348 #endif
    00349
    00350   ResetNewGRFData();
    00351
    00352   /* Close all and any open filehandles */
    00353   FioCloseAll();
    00354 }
    00355
    00356 static void LoadIntroGame()
    00357 {
    00358   _game_mode = GM_MENU;
    00359
    00360   ResetGRFConfig(false);
    00361
    00362   /* Setup main window */
    00363   ResetWindowSystem();
    00364   SetupColoursAndInitialWindow();
    00365
    00366   /* Load the default opening screen savegame */
    00367   if (SaveOrLoad("opntitle.dat", SL_LOAD, DATA_DIR) != SL_OK) {
    00368     GenerateWorld(GWM_EMPTY, 64, 64); // if failed loading, make empty world.
    00369     WaitTillGeneratedWorld();
    00370     SetLocalCompany(COMPANY_SPECTATOR);
    00371   } else {
    00372     SetLocalCompany(COMPANY_FIRST);
    00373   }
    00374
    00375   _pause_mode = PM_UNPAUSED;
    00376   _cursor.fix_at = false;
    00377
    00378   CheckForMissingSprites();
    00379   CheckForMissingGlyphsInLoadedLanguagePack();
    00380
    00381   /* Play main theme */
    00382   if (_music_driver->IsSongPlaying()) ResetMusic();
    00383 }
    00384
    00385 void MakeNewgameSettingsLive()
    00386 {
    00387 #ifdef ENABLE_AI
    00388   for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
    00389     if (_settings_game.ai_config[c] != NULL) {
    00390       delete _settings_game.ai_config[c];
    00391     }
    00392   }
    00393 #endif /* ENABLE_AI */
    00394
    00395   _settings_game = _settings_newgame;
    00396
    00397 #ifdef ENABLE_AI
    00398   for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
    00399     _settings_game.ai_config[c] = NULL;
    00400     if (_settings_newgame.ai_config[c] != NULL) {
    00401       _settings_game.ai_config[c] = new AIConfig(_settings_newgame.ai_config[c]);
    00402     }
    00403   }
    00404 #endif /* ENABLE_AI */
    00405 }
    00406
    00407 #if defined(UNIX) && !defined(__MORPHOS__)
    00408 extern void DedicatedFork();
    00409 #endif
    00410
    00411 int ttd_main(int argc, char *argv[])
    00412 {
    00413   int i;
    00414   const char *optformat;
    00415   char *musicdriver = NULL;
    00416   char *sounddriver = NULL;
    00417   char *videodriver = NULL;
    00418   char *blitter = NULL;
    00419   char *graphics_set = NULL;
    00420   char *sounds_set = NULL;
    00421   char *music_set = NULL;
    00422   Dimension resolution = {0, 0};
    00423   Year startyear = INVALID_YEAR;
    00424   uint generation_seed = GENERATE_NEW_SEED;
    00425   bool save_config = true;
    00426 #if defined(ENABLE_NETWORK)
    00427   bool dedicated = false;
    00428   bool network   = false;
    00429   char *network_conn = NULL;
    00430   char *debuglog_conn = NULL;
    00431   char *dedicated_host = NULL;
    00432   uint16 dedicated_port = 0;
    00433   char *join_server_password = NULL;
    00434   char *join_company_password = NULL;
    00435
    00436   extern bool _dedicated_forks;
    00437   _dedicated_forks = false;
    00438 #endif /* ENABLE_NETWORK */
    00439
    00440   _game_mode = GM_MENU;
    00441   _switch_mode = SM_MENU;
    00442   _switch_mode_errorstr = INVALID_STRING_ID;
    00443   _config_file = NULL;
    00444
    00445   /* The last param of the following function means this:
    00446    *   a letter means: it accepts that param (e.g.: -h)
    00447    *   a ':' behind it means: it need a param (e.g.: -m<driver>)
    00448    *   a '::' behind it means: it can optional have a param (e.g.: -d<debug>) */
    00449   optformat = "m:s:v:b:hD::n::ei::I:S:M:t:d::r:g::G:c:xl:p:P:"
    00450 #if !defined(__MORPHOS__) && !defined(__AMIGA__) && !defined(WIN32)
    00451     "f"
    00452 #endif
    00453   ;
    00454
    00455   DrawPixelInfo dpi;
    00456   _cur_dpi = &dpi;
    00457   _cur_dpi->zoom = ZOOM_LVL_NORMAL;
    00458
    00459   MyGetOptData mgo(argc - 1, argv + 1, optformat);
    00460
    00461   while ((i = MyGetOpt(&mgo)) != -1) {
    00462     switch (i) {
    00463     case 'I': free(graphics_set); graphics_set = strdup(mgo.opt); break;
    00464     case 'S': free(sounds_set); sounds_set = strdup(mgo.opt); break;
    00465     case 'M': free(music_set); music_set = strdup(mgo.opt); break;
    00466     case 'm': free(musicdriver); musicdriver = strdup(mgo.opt); break;
    00467     case 's': free(sounddriver); sounddriver = strdup(mgo.opt); break;
    00468     case 'v': free(videodriver); videodriver = strdup(mgo.opt); break;
    00469     case 'b': free(blitter); blitter = strdup(mgo.opt); break;
    00470 #if defined(ENABLE_NETWORK)
    00471     case 'D':
    00472       free(musicdriver);
    00473       free(sounddriver);
    00474       free(videodriver);
    00475       free(blitter);
    00476       musicdriver = strdup("null");
    00477       sounddriver = strdup("null");
    00478       videodriver = strdup("dedicated");
    00479       blitter = strdup("null");
    00480       dedicated = true;
    00481       SetDebugString("net=6");
    00482       if (mgo.opt != NULL) {
    00483         /* Use the existing method for parsing (openttd -n).
    00484          * However, we do ignore the #company part. */
    00485         const char *temp = NULL;
    00486         const char *port = NULL;
    00487         ParseConnectionString(&temp, &port, mgo.opt);
    00488         if (!StrEmpty(mgo.opt)) dedicated_host = mgo.opt;
    00489         if (port != NULL) dedicated_port = atoi(port);
    00490       }
    00491       break;
    00492     case 'f': _dedicated_forks = true; break;
    00493     case 'n':
    00494       network = true;
    00495       network_conn = mgo.opt; // optional IP parameter, NULL if unset
    00496       break;
    00497     case 'l':
    00498       debuglog_conn = mgo.opt;
    00499       break;
    00500     case 'p':
    00501       join_server_password = mgo.opt;
    00502       break;
    00503     case 'P':
    00504       join_company_password = mgo.opt;
    00505       break;
    00506 #endif /* ENABLE_NETWORK */
    00507     case 'r': ParseResolution(&resolution, mgo.opt); break;
    00508     case 't': startyear = atoi(mgo.opt); break;
    00509     case 'd': {
    00510 #if defined(WIN32)
    00511         CreateConsole();
    00512 #endif
    00513         if (mgo.opt != NULL) SetDebugString(mgo.opt);
    00514         break;
    00515       }
    00516     case 'e': _switch_mode = SM_EDITOR; break;
    00517     case 'i':
    00518       /* there is an argument, it is not empty, and it is exactly 1 char long */
    00519       if (!StrEmpty(mgo.opt) && mgo.opt[1] == '\0') {
    00520         _use_palette = (PaletteType)(mgo.opt[0] - '0');
    00521         if (_use_palette <= MAX_PAL) break;
    00522       }
    00523       usererror("Valid value for '-i' is 0, 1 or 2");
    00524     case 'g':
    00525       if (mgo.opt != NULL) {
    00526         strecpy(_file_to_saveload.name, mgo.opt, lastof(_file_to_saveload.name));
    00527         _switch_mode = SM_LOAD;
    00528         _file_to_saveload.mode = SL_LOAD;
    00529
    00530         /* if the file doesn't exist or it is not a valid savegame, let the saveload code show an error */
    00531         const char *t = strrchr(_file_to_saveload.name, '.');
    00532         if (t != NULL) {
    00533           FiosType ft = FiosGetSavegameListCallback(SLD_LOAD_GAME, _file_to_saveload.name, t, NULL, NULL);
    00534           if (ft != FIOS_TYPE_INVALID) SetFiosType(ft);
    00535         }
    00536
    00537         break;
    00538       }
    00539
    00540       _switch_mode = SM_NEWGAME;
    00541       /* Give a random map if no seed has been given */
    00542       if (generation_seed == GENERATE_NEW_SEED) {
    00543         generation_seed = InteractiveRandom();
    00544       }
    00545       break;
    00546     case 'G': generation_seed = atoi(mgo.opt); break;
    00547     case 'c': _config_file = strdup(mgo.opt); break;
    00548     case 'x': save_config = false; break;
    00549     case -2:
    00550     case 'h':
    00551       /* The next two functions are needed to list the graphics sets.
    00552        * We can't do them earlier because then we can't show it on
    00553        * the debug console as that hasn't been configured yet. */
    00554       DeterminePaths(argv[0]);
    00555       BaseGraphics::FindSets();
    00556       BaseSounds::FindSets();
    00557       BaseMusic::FindSets();
    00558       ShowHelp();
    00559       return 0;
    00560     }
    00561   }
    00562
    00563 #if defined(WINCE) && defined(_DEBUG)
    00564   /* Switch on debug lvl 4 for WinCE if Debug release, as you can't give params, and you most likely do want this information */
    00565   SetDebugString("4");
    00566 #endif
    00567
    00568   DeterminePaths(argv[0]);
    00569   BaseGraphics::FindSets();
    00570   BaseSounds::FindSets();
    00571   BaseMusic::FindSets();
    00572
    00573 #if defined(ENABLE_NETWORK) && defined(UNIX) && !defined(__MORPHOS__)
    00574   /* We must fork here, or we'll end up without some resources we need (like sockets) */
    00575   if (_dedicated_forks) DedicatedFork();
    00576 #endif
    00577
    00578   TarScanner::DoScan();
    00579   AI::Initialize();
    00580   LoadFromConfig();
    00581   AI::Uninitialize(true);
    00582   CheckConfig();
    00583   LoadFromHighScore();
    00584   LoadHotkeysFromConfig();
    00585
    00586   if (resolution.width != 0) { _cur_resolution = resolution; }
    00587   if (startyear != INVALID_YEAR) _settings_newgame.game_creation.starting_year = startyear;
    00588   if (generation_seed != GENERATE_NEW_SEED) _settings_newgame.game_creation.generation_seed = generation_seed;
    00589
    00590   /*
    00591    * The width and height must be at least 1 pixel and width times
    00592    * height must still fit within a 32 bits integer, this way all
    00593    * internal drawing routines work correctly.
    00594    */
    00595   _cur_resolution.width  = ClampU(_cur_resolution.width,  1, UINT16_MAX);
    00596   _cur_resolution.height = ClampU(_cur_resolution.height, 1, UINT16_MAX);
    00597
    00598 #if defined(ENABLE_NETWORK)
    00599   if (dedicated) DEBUG(net, 0, "Starting dedicated version %s", _openttd_revision);
    00600   if (dedicated_host) {
    00601     _network_bind_list.Clear();
    00602     *_network_bind_list.Append() = strdup(dedicated_host);
    00603   }
    00604   if (dedicated_port) _settings_client.network.server_port = dedicated_port;
    00605   if (_dedicated_forks && !dedicated) _dedicated_forks = false;
    00606 #endif /* ENABLE_NETWORK */
    00607
    00608   /* enumerate language files */
    00609   InitializeLanguagePacks();
    00610
    00611   /* initialize screenshot formats */
    00612   InitializeScreenshotFormats();
    00613
    00614   /* initialize all variables that are allocated dynamically */
    00615   InitializeDynamicVariables();
    00616
    00617   /* Initialize FreeType */
    00618   InitFreeType();
    00619
    00620   /* This must be done early, since functions use the SetWindowDirty* calls */
    00621   InitWindowSystem();
    00622
    00623   /* Look for the sounds before the graphics. Otherwise none would be set and
    00624    * the first initialisation of the video happens on the wrong data. Now it
    00625    * can do the first initialisation right. */
    00626   if (sounds_set == NULL && BaseSounds::ini_set != NULL) sounds_set = strdup(BaseSounds::ini_set);
    00627   if (!BaseSounds::SetSet(sounds_set)) {
    00628     StrEmpty(sounds_set) ?
    00629       usererror("Failed to find a sounds set. Please acquire a sounds set for OpenTTD. See section 4.1 of readme.txt.") :
    00630       usererror("Failed to select requested sounds set '%s'", sounds_set);
    00631   }
    00632   free(sounds_set);
    00633
    00634   if (graphics_set == NULL && BaseGraphics::ini_set != NULL) graphics_set = strdup(BaseGraphics::ini_set);
    00635   if (!BaseGraphics::SetSet(graphics_set)) {
    00636     StrEmpty(graphics_set) ?
    00637       usererror("Failed to find a graphics set. Please acquire a graphics set for OpenTTD. See section 4.1 of readme.txt.") :
    00638       usererror("Failed to select requested graphics set '%s'", graphics_set);
    00639   }
    00640   free(graphics_set);
    00641
    00642   if (music_set == NULL && BaseMusic::ini_set != NULL) music_set = strdup(BaseMusic::ini_set);
    00643   if (!BaseMusic::SetSet(music_set)) {
    00644     StrEmpty(music_set) ?
    00645       usererror("Failed to find a music set. Please acquire a music set for OpenTTD. See section 4.1 of readme.txt.") :
    00646       usererror("Failed to select requested music set '%s'", music_set);
    00647   }
    00648   free(music_set);
    00649
    00650   /* Initialize game palette */
    00651   GfxInitPalettes();
    00652
    00653   DEBUG(misc, 1, "Loading blitter...");
    00654   if (blitter == NULL && _ini_blitter != NULL) blitter = strdup(_ini_blitter);
    00655   DEBUG(misc, 1, "Force 32bpp-optimized blitter, needed for extra zoom patch");
    00656   blitter = strdup("32bpp-optimized");
    00657   if (BlitterFactoryBase::SelectBlitter(blitter) == NULL){
    00658     StrEmpty(blitter) ?
    00659       usererror("Failed to autoprobe blitter") :
    00660       usererror("Failed to select requested blitter '%s'; does it exist?", blitter);
    00661   }
    00662   free(blitter);
    00663
    00664   DEBUG(driver, 1, "Loading drivers...");
    00665
    00666   if (sounddriver == NULL && _ini_sounddriver != NULL) sounddriver = strdup(_ini_sounddriver);
    00667   _sound_driver = (SoundDriver*)SoundDriverFactoryBase::SelectDriver(sounddriver, Driver::DT_SOUND);
    00668   if (_sound_driver == NULL) {
    00669     StrEmpty(sounddriver) ?
    00670       usererror("Failed to autoprobe sound driver") :
    00671       usererror("Failed to select requested sound driver '%s'", sounddriver);
    00672   }
    00673   free(sounddriver);
    00674
    00675   if (videodriver == NULL && _ini_videodriver != NULL) videodriver = strdup(_ini_videodriver);
    00676   _video_driver = (VideoDriver*)VideoDriverFactoryBase::SelectDriver(videodriver, Driver::DT_VIDEO);
    00677   if (_video_driver == NULL) {
    00678     StrEmpty(videodriver) ?
    00679       usererror("Failed to autoprobe video driver") :
    00680       usererror("Failed to select requested video driver '%s'", videodriver);
    00681   }
    00682   free(videodriver);
    00683
    00684   if (musicdriver == NULL && _ini_musicdriver != NULL) musicdriver = strdup(_ini_musicdriver);
    00685   _music_driver = (MusicDriver*)MusicDriverFactoryBase::SelectDriver(musicdriver, Driver::DT_MUSIC);
    00686   if (_music_driver == NULL) {
    00687     StrEmpty(musicdriver) ?
    00688       usererror("Failed to autoprobe music driver") :
    00689       usererror("Failed to select requested music driver '%s'", musicdriver);
    00690   }
    00691   free(musicdriver);
    00692
    00693   /* Initialize the zoom level of the screen to normal */
    00694   _screen.zoom = ZOOM_LVL_NORMAL;
    00695
    00696   /* restore saved music volume */
    00697   _music_driver->SetVolume(_msf.music_vol);
    00698
    00699   NetworkStartUp(); // initialize network-core
    00700
    00701 #if defined(ENABLE_NETWORK)
    00702   if (debuglog_conn != NULL && _network_available) {
    00703     const char *not_used = NULL;
    00704     const char *port = NULL;
    00705     uint16 rport;
    00706
    00707     rport = NETWORK_DEFAULT_DEBUGLOG_PORT;
    00708
    00709     ParseConnectionString(&not_used, &port, debuglog_conn);
    00710     if (port != NULL) rport = atoi(port);
    00711
    00712     NetworkStartDebugLog(NetworkAddress(debuglog_conn, rport));
    00713   }
    00714 #endif /* ENABLE_NETWORK */
    00715
    00716   ScanNewGRFFiles();
    00717
    00718   ResetGRFConfig(false);
    00719
    00720   /* Make sure _settings is filled with _settings_newgame if we switch to a game directly */
    00721   if (_switch_mode != SM_NONE) MakeNewgameSettingsLive();
    00722
    00723   /* initialize the ingame console */
    00724   IConsoleInit();
    00725   _cursor.in_window = true;
    00726   InitializeGUI();
    00727   IConsoleCmdExec("exec scripts/autoexec.scr 0");
    00728
    00729   /* Take our initial lock on whatever we might want to do! */
    00730   _genworld_paint_mutex->BeginCritical();
    00731   _genworld_mapgen_mutex->BeginCritical();
    00732
    00733   GenerateWorld(GWM_EMPTY, 64, 64); // Make the viewport initialization happy
    00734   WaitTillGeneratedWorld();
    00735
    00736   CheckForMissingGlyphsInLoadedLanguagePack();
    00737
    00738 #ifdef ENABLE_NETWORK
    00739   if (network && _network_available) {
    00740     if (network_conn != NULL) {
    00741       const char *port = NULL;
    00742       const char *company = NULL;
    00743       uint16 rport = NETWORK_DEFAULT_PORT;
    00744       CompanyID join_as = COMPANY_NEW_COMPANY;
    00745
    00746       ParseConnectionString(&company, &port, network_conn);
    00747
    00748       if (company != NULL) {
    00749         join_as = (CompanyID)atoi(company);
    00750
    00751         if (join_as != COMPANY_SPECTATOR) {
    00752           join_as--;
    00753           if (join_as >= MAX_COMPANIES) return false;
    00754         }
    00755       }
    00756       if (port != NULL) rport = atoi(port);
    00757
    00758       LoadIntroGame();
    00759       _switch_mode = SM_NONE;
    00760       NetworkClientConnectGame(NetworkAddress(network_conn, rport), join_as, join_server_password, join_company_password);
    00761     }
    00762   }
    00763 #endif /* ENABLE_NETWORK */
    00764
    00765   _video_driver->MainLoop();
    00766
    00767   WaitTillSaved();
    00768
    00769   /* only save config if we have to */
    00770   if (save_config) {
    00771     SaveToConfig();
    00772     SaveHotkeysToConfig();
    00773     SaveToHighScore();
    00774   }
    00775
    00776   /* Reset windowing system, stop drivers, free used memory, ... */
    00777   ShutdownGame();
    00778
    00779   free(const_cast<char *>(BaseGraphics::ini_set));
    00780   free(const_cast<char *>(BaseSounds::ini_set));
    00781   free(const_cast<char *>(BaseMusic::ini_set));
    00782   free(_ini_musicdriver);
    00783   free(_ini_sounddriver);
    00784   free(_ini_videodriver);
    00785   free(_ini_blitter);
    00786
    00787   return 0;
    00788 }
    00789
    00790 void HandleExitGameRequest()
    00791 {
    00792   if (_game_mode == GM_MENU) { // do not ask to quit on the main screen
    00793     _exit_game = true;
    00794   } else if (_settings_client.gui.autosave_on_exit) {
    00795     DoExitSave();
    00796     _exit_game = true;
    00797   } else {
    00798     AskExitGame();
    00799   }
    00800 }
    00801
    00802 static void MakeNewGameDone()
    00803 {
    00804   SettingsDisableElrail(_settings_game.vehicle.disable_elrails);
    00805
    00806   /* In a dedicated server, the server does not play */
    00807   if (_network_dedicated || BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() == 0) {
    00808     SetLocalCompany(COMPANY_SPECTATOR);
    00809     IConsoleCmdExec("exec scripts/game_start.scr 0");
    00810     return;
    00811   }
    00812
    00813   /* Create a single company */
    00814   DoStartupNewCompany(false);
    00815
    00816   Company *c = Company::Get(COMPANY_FIRST);
    00817   c->settings = _settings_client.company;
    00818
    00819   IConsoleCmdExec("exec scripts/game_start.scr 0");
    00820
    00821   SetLocalCompany(COMPANY_FIRST);
    00822
    00823   InitializeRailGUI();
    00824
    00825 #ifdef ENABLE_NETWORK
    00826   /* We are the server, we start a new company (not dedicated),
    00827    * so set the default password *if* needed. */
    00828   if (_network_server && !StrEmpty(_settings_client.network.default_company_pass)) {
    00829     NetworkChangeCompanyPassword(_local_company, _settings_client.network.default_company_pass);
    00830   }
    00831 #endif /* ENABLE_NETWORK */
    00832
    00833   if (_settings_client.gui.pause_on_newgame) DoCommandP(0, PM_PAUSED_NORMAL, 1, CMD_PAUSE);
    00834
    00835   MarkWholeScreenDirty();
    00836 }
    00837
    00838 static void MakeNewGame(bool from_heightmap, bool reset_settings)
    00839 {
    00840   _game_mode = GM_NORMAL;
    00841
    00842   ResetGRFConfig(true);
    00843   InitializeDynamicVariables();
    00844
    00845   GenerateWorldSetCallback(&MakeNewGameDone);
    00846   GenerateWorld(from_heightmap ? GWM_HEIGHTMAP : GWM_NEWGAME, 1 << _settings_game.game_creation.map_x, 1 << _settings_game.game_creation.map_y, reset_settings);
    00847 }
    00848
    00849 static void MakeNewEditorWorldDone()
    00850 {
    00851   SetLocalCompany(OWNER_NONE);
    00852 }
    00853
    00854 static void MakeNewEditorWorld()
    00855 {
    00856   _game_mode = GM_EDITOR;
    00857
    00858   ResetGRFConfig(true);
    00859
    00860   GenerateWorldSetCallback(&MakeNewEditorWorldDone);
    00861   GenerateWorld(GWM_EMPTY, 1 << _settings_game.game_creation.map_x, 1 << _settings_game.game_creation.map_y);
    00862 }
    00863
    00874 bool SafeLoad(const char *filename, int mode, GameMode newgm, Subdirectory subdir, struct LoadFilter *lf = NULL)
    00875 {
    00876   assert(mode == SL_LOAD || (lf == NULL && mode == SL_OLD_LOAD));
    00877   GameMode ogm = _game_mode;
    00878
    00879   _game_mode = newgm;
    00880
    00881   switch (lf == NULL ? SaveOrLoad(filename, mode, subdir) : LoadWithFilter(lf)) {
    00882     case SL_OK: return true;
    00883
    00884     case SL_REINIT:
    00885 #ifdef ENABLE_NETWORK
    00886       if (_network_dedicated) {
    00887         /*
    00888          * We need to reinit a network map...
    00889          * We can't simply load the intro game here as that game has many
    00890          * special cases which make clients desync immediately. So we fall
    00891          * back to just generating a new game with the current settings.
    00892          */
    00893         DEBUG(net, 0, "Loading game failed, so a new (random) game will be started!");
    00894         MakeNewGame(false, true);
    00895         return false;
    00896       }
    00897       if (_network_server) {
    00898         /* We can't load the intro game as server, so disconnect first. */
    00899         NetworkDisconnect();
    00900       }
    00901 #endif /* ENABLE_NETWORK */
    00902
    00903       switch (ogm) {
    00904         default:
    00905         case GM_MENU:   LoadIntroGame();      break;
    00906         case GM_EDITOR: MakeNewEditorWorld(); break;
    00907       }
    00908       return false;
    00909
    00910     default:
    00911       _game_mode = ogm;
    00912       return false;
    00913   }
    00914 }
    00915
    00916 void SwitchToMode(SwitchMode new_mode)
    00917 {
    00918 #ifdef ENABLE_NETWORK
    00919   /* If we are saving something, the network stays in his current state */
    00920   if (new_mode != SM_SAVE) {
    00921     /* If the network is active, make it not-active */
    00922     if (_networking) {
    00923       if (_network_server && (new_mode == SM_LOAD || new_mode == SM_NEWGAME || new_mode == SM_RESTARTGAME)) {
    00924         NetworkReboot();
    00925       } else {
    00926         NetworkDisconnect();
    00927       }
    00928     }
    00929
    00930     /* If we are a server, we restart the server */
    00931     if (_is_network_server) {
    00932       /* But not if we are going to the menu */
    00933       if (new_mode != SM_MENU) {
    00934         /* check if we should reload the config */
    00935         if (_settings_client.network.reload_cfg) {
    00936           LoadFromConfig();
    00937           MakeNewgameSettingsLive();
    00938           ResetGRFConfig(false);
    00939         }
    00940         NetworkServerStart();
    00941       } else {
    00942         /* This client no longer wants to be a network-server */
    00943         _is_network_server = false;
    00944       }
    00945     }
    00946   }
    00947 #endif /* ENABLE_NETWORK */
    00948   /* Make sure all AI controllers are gone at quiting game */
    00949   if (new_mode != SM_SAVE) AI::KillAll();
    00950
    00951   switch (new_mode) {
    00952     case SM_EDITOR: // Switch to scenario editor
    00953       MakeNewEditorWorld();
    00954       break;
    00955
    00956     case SM_RESTARTGAME: // Restart --> 'Random game' with current settings
    00957     case SM_NEWGAME: // New Game --> 'Random game'
    00958 #ifdef ENABLE_NETWORK
    00959       if (_network_server) {
    00960         snprintf(_network_game_info.map_name, lengthof(_network_game_info.map_name), "Random Map");
    00961       }
    00962 #endif /* ENABLE_NETWORK */
    00963       MakeNewGame(false, new_mode == SM_NEWGAME);
    00964       break;
    00965
    00966     case SM_LOAD: { // Load game, Play Scenario
    00967       ResetGRFConfig(true);
    00968       ResetWindowSystem();
    00969
    00970       if (!SafeLoad(_file_to_saveload.name, _file_to_saveload.mode, GM_NORMAL, NO_DIRECTORY)) {
    00971         SetDParamStr(0, GetSaveLoadErrorString());
    00972         ShowErrorMessage(STR_JUST_RAW_STRING, INVALID_STRING_ID, WL_ERROR);
    00973       } else {
    00974         if (_saveload_mode == SLD_LOAD_SCENARIO) {
    00975           StartupEngines();
    00976         }
    00977         /* Update the local company for a loaded game. It is either always
    00978          * company #1 (eg 0) or in the case of a dedicated server a spectator */
    00979         SetLocalCompany(_network_dedicated ? COMPANY_SPECTATOR : COMPANY_FIRST);
    00980         /* Execute the game-start script */
    00981         IConsoleCmdExec("exec scripts/game_start.scr 0");
    00982         /* Decrease pause counter (was increased from opening load dialog) */
    00983         DoCommandP(0, PM_PAUSED_SAVELOAD, 0, CMD_PAUSE);
    00984 #ifdef ENABLE_NETWORK
    00985         if (_network_server) {
    00986           snprintf(_network_game_info.map_name, lengthof(_network_game_info.map_name), "%s (Loaded game)", _file_to_saveload.title);
    00987         }
    00988 #endif /* ENABLE_NETWORK */
    00989       }
    00990       break;
    00991     }
    00992
    00993     case SM_START_HEIGHTMAP: // Load a heightmap and start a new game from it
    00994 #ifdef ENABLE_NETWORK
    00995       if (_network_server) {
    00996         snprintf(_network_game_info.map_name, lengthof(_network_game_info.map_name), "%s (Heightmap)", _file_to_saveload.title);
    00997       }
    00998 #endif /* ENABLE_NETWORK */
    00999       MakeNewGame(true, true);
    01000       break;
    01001
    01002     case SM_LOAD_HEIGHTMAP: // Load heightmap from scenario editor
    01003       SetLocalCompany(OWNER_NONE);
    01004
    01005       GenerateWorld(GWM_HEIGHTMAP, 1 << _settings_game.game_creation.map_x, 1 << _settings_game.game_creation.map_y);
    01006       MarkWholeScreenDirty();
    01007       break;
    01008
    01009     case SM_LOAD_SCENARIO: { // Load scenario from scenario editor
    01010       if (SafeLoad(_file_to_saveload.name, _file_to_saveload.mode, GM_EDITOR, NO_DIRECTORY)) {
    01011         SetLocalCompany(OWNER_NONE);
    01012         _settings_newgame.game_creation.starting_year = _cur_year;
    01013         /* Cancel the saveload pausing */
    01014         DoCommandP(0, PM_PAUSED_SAVELOAD, 0, CMD_PAUSE);
    01015       } else {
    01016         SetDParamStr(0, GetSaveLoadErrorString());
    01017         ShowErrorMessage(STR_JUST_RAW_STRING, INVALID_STRING_ID, WL_ERROR);
    01018       }
    01019       break;
    01020     }
    01021
    01022     case SM_MENU: // Switch to game intro menu
    01023       LoadIntroGame();
    01024       if (BaseSounds::ini_set == NULL && BaseSounds::GetUsedSet()->fallback) {
    01025         ShowErrorMessage(STR_WARNING_FALLBACK_SOUNDSET, INVALID_STRING_ID, WL_CRITICAL);
    01026         BaseSounds::ini_set = strdup(BaseSounds::GetUsedSet()->name);
    01027       }
    01028       break;
    01029
    01030     case SM_SAVE: // Save game
    01031       /* Make network saved games on pause compatible to singleplayer */
    01032       if (SaveOrLoad(_file_to_saveload.name, SL_SAVE, NO_DIRECTORY) != SL_OK) {
    01033         SetDParamStr(0, GetSaveLoadErrorString());
    01034         ShowErrorMessage(STR_JUST_RAW_STRING, INVALID_STRING_ID, WL_ERROR);
    01035       } else {
    01036         DeleteWindowById(WC_SAVELOAD, 0);
    01037       }
    01038       break;
    01039
    01040     case SM_GENRANDLAND: // Generate random land within scenario editor
    01041       SetLocalCompany(OWNER_NONE);
    01042       GenerateWorld(GWM_RANDOM, 1 << _settings_game.game_creation.map_x, 1 << _settings_game.game_creation.map_y);
    01043       /* XXX: set date */
    01044       MarkWholeScreenDirty();
    01045       break;
    01046
    01047     default: NOT_REACHED();
    01048   }
    01049
    01050   if (_switch_mode_errorstr != INVALID_STRING_ID) {
    01051     ShowErrorMessage(_switch_mode_errorstr, INVALID_STRING_ID, WL_CRITICAL);
    01052     _switch_mode_errorstr = INVALID_STRING_ID;
    01053   }
    01054 }
    01055
    01056
    01063 static void CheckCaches()
    01064 {
    01065   /* Return here so it is easy to add checks that are run
    01066    * always to aid testing of caches. */
    01067   if (_debug_desync_level <= 1) return;
    01068
    01069   /* Strict checking of the road stop cache entries */
    01070   const RoadStop *rs;
    01071   FOR_ALL_ROADSTOPS(rs) {
    01072     if (IsStandardRoadStopTile(rs->xy)) continue;
    01073
    01074     assert(rs->GetEntry(DIAGDIR_NE) != rs->GetEntry(DIAGDIR_NW));
    01075     rs->GetEntry(DIAGDIR_NE)->CheckIntegrity(rs);
    01076     rs->GetEntry(DIAGDIR_NW)->CheckIntegrity(rs);
    01077   }
    01078
    01079   Vehicle *v;
    01080   FOR_ALL_VEHICLES(v) {
    01081     extern void FillNewGRFVehicleCache(const Vehicle *v);
    01082     if (v != v->First() || v->vehstatus & VS_CRASHED || !v->IsPrimaryVehicle()) continue;
    01083
    01084     uint length = 0;
    01085     for (const Vehicle *u = v; u != NULL; u = u->Next()) length++;
    01086
    01087     NewGRFCache        *grf_cache = CallocT<NewGRFCache>(length);
    01088     VehicleCache       *veh_cache = CallocT<VehicleCache>(length);
    01089     GroundVehicleCache *gro_cache = CallocT<GroundVehicleCache>(length);
    01090     TrainCache         *tra_cache = CallocT<TrainCache>(length);
    01091
    01092     length = 0;
    01093     for (const Vehicle *u = v; u != NULL; u = u->Next()) {
    01094       FillNewGRFVehicleCache(u);
    01095       grf_cache[length] = u->grf_cache;
    01096       veh_cache[length] = u->vcache;
    01097       switch (u->type) {
    01098         case VEH_TRAIN:
    01099           gro_cache[length] = Train::From(u)->gcache;
    01100           tra_cache[length] = Train::From(u)->tcache;
    01101           break;
    01102         case VEH_ROAD:
    01103           gro_cache[length] = RoadVehicle::From(u)->gcache;
    01104           break;
    01105         default:
    01106           break;
    01107       }
    01108       length++;
    01109     }
    01110
    01111     switch (v->type) {
    01112       case VEH_TRAIN:    Train::From(v)->ConsistChanged(true);     break;
    01113       case VEH_ROAD:     RoadVehUpdateCache(RoadVehicle::From(v)); break;
    01114       case VEH_AIRCRAFT: UpdateAircraftCache(Aircraft::From(v));   break;
    01115       case VEH_SHIP:     Ship::From(v)->UpdateCache();             break;
    01116       default: break;
    01117     }
    01118
    01119     length = 0;
    01120     for (const Vehicle *u = v; u != NULL; u = u->Next()) {
    01121       FillNewGRFVehicleCache(u);
    01122       if (memcmp(&grf_cache[length], &u->grf_cache, sizeof(NewGRFCache)) != 0) {
    01123         DEBUG(desync, 2, "newgrf cache mismatch: type %i, vehicle %i, company %i, unit number %i, wagon %i", (int)v->type, v->index, (int)v->owner, v->unitnumber, length);
    01124       }
    01125       if (memcmp(&veh_cache[length], &u->vcache, sizeof(VehicleCache)) != 0) {
    01126         DEBUG(desync, 2, "vehicle cache mismatch: type %i, vehicle %i, company %i, unit number %i, wagon %i", (int)v->type, v->index, (int)v->owner, v->unitnumber, length);
    01127       }
    01128       switch (u->type) {
    01129         case VEH_TRAIN:
    01130           if (memcmp(&gro_cache[length], &Train::From(u)->gcache, sizeof(GroundVehicleCache)) != 0) {
    01131             DEBUG(desync, 2, "train ground vehicle cache mismatch: vehicle %i, company %i, unit number %i, wagon %i", v->index, (int)v->owner, v->unitnumber, length);
    01132           }
    01133           if (memcmp(&tra_cache[length], &Train::From(u)->tcache, sizeof(TrainCache)) != 0) {
    01134             DEBUG(desync, 2, "train cache mismatch: vehicle %i, company %i, unit number %i, wagon %i", v->index, (int)v->owner, v->unitnumber, length);
    01135           }
    01136           break;
    01137         case VEH_ROAD:
    01138           if (memcmp(&gro_cache[length], &RoadVehicle::From(u)->gcache, sizeof(GroundVehicleCache)) != 0) {
    01139             DEBUG(desync, 2, "road vehicle ground vehicle cache mismatch: vehicle %i, company %i, unit number %i, wagon %i", v->index, (int)v->owner, v->unitnumber, length);
    01140           }
    01141           break;
    01142         default:
    01143           break;
    01144       }
    01145       length++;
    01146     }
    01147
    01148     free(grf_cache);
    01149     free(veh_cache);
    01150     free(gro_cache);
    01151     free(tra_cache);
    01152   }
    01153
    01154   /* Check whether the caches are still valid */
    01155   FOR_ALL_VEHICLES(v) {
    01156     byte buff[sizeof(VehicleCargoList)];
    01157     memcpy(buff, &v->cargo, sizeof(VehicleCargoList));
    01158     v->cargo.InvalidateCache();
    01159     assert(memcmp(&v->cargo, buff, sizeof(VehicleCargoList)) == 0);
    01160   }
    01161
    01162   Station *st;
    01163   FOR_ALL_STATIONS(st) {
    01164     for (CargoID c = 0; c < NUM_CARGO; c++) {
    01165       byte buff[sizeof(StationCargoList)];
    01166       memcpy(buff, &st->goods[c].cargo, sizeof(StationCargoList));
    01167       st->goods[c].cargo.InvalidateCache();
    01168       assert(memcmp(&st->goods[c].cargo, buff, sizeof(StationCargoList)) == 0);
    01169     }
    01170   }
    01171 }
    01172
    01178 void StateGameLoop()
    01179 {
    01180   /* dont execute the state loop during pause */
    01181   if (_pause_mode != PM_UNPAUSED) {
    01182     UpdateLandscapingLimits();
    01183     CallWindowTickEvent();
    01184     return;
    01185   }
    01186   if (IsGeneratingWorld()) return;
    01187
    01188   ClearStorageChanges(false);
    01189
    01190   if (_game_mode == GM_EDITOR) {
    01191     RunTileLoop();
    01192     CallVehicleTicks();
    01193     CallLandscapeTick();
    01194     ClearStorageChanges(true);
    01195     UpdateLandscapingLimits();
    01196
    01197     CallWindowTickEvent();
    01198     NewsLoop();
    01199   } else {
    01200     if (_debug_desync_level > 2 && _date_fract == 0 && (_date & 0x1F) == 0) {
    01201       /* Save the desync savegame if needed. */
    01202       char name[MAX_PATH];
    01203       snprintf(name, lengthof(name), "dmp_cmds_%08x_%08x.sav", _settings_game.game_creation.generation_seed, _date);
    01204       SaveOrLoad(name, SL_SAVE, AUTOSAVE_DIR, false);
    01205     }
    01206
    01207     CheckCaches();
    01208
    01209     /* All these actions has to be done from OWNER_NONE
    01210      *  for multiplayer compatibility */
    01211     Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
    01212
    01213     AnimateAnimatedTiles();
    01214     IncreaseDate();
    01215     RunTileLoop();
    01216     CallVehicleTicks();
    01217     CallLandscapeTick();
    01218     ClearStorageChanges(true);
    01219
    01220     AI::GameLoop();
    01221     UpdateLandscapingLimits();
    01222
    01223     CallWindowTickEvent();
    01224     NewsLoop();
    01225     cur_company.Restore();
    01226   }
    01227
    01228   assert(IsLocalCompany());
    01229 }
    01230
    01235 static void DoAutosave()
    01236 {
    01237   char buf[MAX_PATH];
    01238
    01239 #if defined(PSP)
    01240   /* Autosaving in networking is too time expensive for the PSP */
    01241   if (_networking) return;
    01242 #endif /* PSP */
    01243
    01244   if (_settings_client.gui.keep_all_autosave) {
    01245     GenerateDefaultSaveName(buf, lastof(buf));
    01246     strecat(buf, ".sav", lastof(buf));
    01247   } else {
    01248     static int _autosave_ctr = 0;
    01249
    01250     /* generate a savegame name and number according to _settings_client.gui.max_num_autosaves */
    01251     snprintf(buf, sizeof(buf), "autosave%d.sav", _autosave_ctr);
    01252
    01253     if (++_autosave_ctr >= _settings_client.gui.max_num_autosaves) _autosave_ctr = 0;
    01254   }
    01255
    01256   DEBUG(sl, 2, "Autosaving to '%s'", buf);
    01257   if (SaveOrLoad(buf, SL_SAVE, AUTOSAVE_DIR) != SL_OK) {
    01258     ShowErrorMessage(STR_ERROR_AUTOSAVE_FAILED, INVALID_STRING_ID, WL_ERROR);
    01259   }
    01260 }
    01261
    01262 void GameLoop()
    01263 {
    01264   ProcessAsyncSaveFinish();
    01265
    01266   /* autosave game? */
    01267   if (_do_autosave) {
    01268     _do_autosave = false;
    01269     DoAutosave();
    01270     SetWindowDirty(WC_STATUS_BAR, 0);
    01271   }
    01272
    01273   /* switch game mode? */
    01274   if (_switch_mode != SM_NONE) {
    01275     SwitchToMode(_switch_mode);
    01276     _switch_mode = SM_NONE;
    01277   }
    01278
    01279   IncreaseSpriteLRU();
    01280   InteractiveRandom();
    01281
    01282   extern int _caret_timer;
    01283   _caret_timer += 3;
    01284   CursorTick();
    01285
    01286 #ifdef ENABLE_NETWORK
    01287   /* Check for UDP stuff */
    01288   if (_network_available) NetworkUDPGameLoop();
    01289
    01290   if (_networking && !IsGeneratingWorld()) {
    01291     /* Multiplayer */
    01292     NetworkGameLoop();
    01293   } else {
    01294     if (_network_reconnect > 0 && --_network_reconnect == 0) {
    01295       /* This means that we want to reconnect to the last host
    01296        * We do this here, because it means that the network is really closed */
    01297       NetworkClientConnectGame(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port), COMPANY_SPECTATOR);
    01298     }
    01299     /* Singleplayer */
    01300     StateGameLoop();
    01301   }
    01302
    01303   /* Check chat messages roughly once a second. */
    01304   static uint check_message = 0;
    01305   if (++check_message > 1000 / MILLISECONDS_PER_TICK) {
    01306     check_message = 0;
    01307     NetworkChatMessageLoop();
    01308   }
    01309 #else
    01310   StateGameLoop();
    01311 #endif /* ENABLE_NETWORK */
    01312
    01313   if (!_pause_mode && HasBit(_display_opt, DO_FULL_ANIMATION)) DoPaletteAnimations();
    01314
    01315   if (!_pause_mode || _game_mode == GM_EDITOR || _settings_game.construction.command_pause_level > CMDPL_NO_CONSTRUCTION) MoveAllTextEffects();
    01316
    01317   InputLoop();
    01318
    01319   _sound_driver->MainLoop();
    01320   MusicLoop();
    01321 }