tron@2186: /* $Id$ */
tron@2186: 
truelight@0: #include "stdafx.h"
tron@1317: #include "string.h"
tron@507: #include "table/strings.h"
tron@1299: #include "debug.h"
tron@2171: #include "driver.h"
tron@2162: #include "saveload.h"
tron@1309: #include "strings.h"
tron@679: #include "map.h"
tron@1209: #include "tile.h"
tron@3144: #include "void_map.h"
truelight@0: 
truelight@0: #define VARDEF
Darkvater@1891: #include "openttd.h"
tron@3367: #include "bridge_map.h"
tron@2163: #include "functions.h"
tron@1496: #include "mixer.h"
tron@1349: #include "spritecache.h"
Darkvater@4912: #include "strings.h"
truelight@0: #include "gfx.h"
tron@2340: #include "gfxinit.h"
truelight@0: #include "gui.h"
truelight@0: #include "station.h"
tron@3367: #include "station_map.h"
tron@3558: #include "town_map.h"
tron@3367: #include "tunnel_map.h"
truelight@0: #include "vehicle.h"
truelight@0: #include "viewport.h"
truelight@0: #include "window.h"
truelight@0: #include "player.h"
truelight@0: #include "command.h"
truelight@0: #include "town.h"
truelight@0: #include "industry.h"
truelight@0: #include "news.h"
truelight@0: #include "engine.h"
truelight@0: #include "sound.h"
truelight@0: #include "economy.h"
truelight@0: #include "fileio.h"
truelight@0: #include "hal.h"
truelight@0: #include "airport.h"
dominik@126: #include "console.h"
tron@430: #include "screenshot.h"
truelight@543: #include "network.h"
truelight@988: #include "signs.h"
truelight@1313: #include "depot.h"
truelight@1542: #include "waypoint.h"
truelight@2395: #include "ai/ai.h"
bjarni@2855: #include "train.h"
KUDr@3900: #include "yapf/yapf.h"
rubidium@3889: #include "settings.h"
truelight@4300: #include "genworld.h"
rubidium@4261: #include "date.h"
truelight@4328: #include "clear_map.h"
peter1138@5108: #include "fontcache.h"
peter1138@5228: #include "newgrf_config.h"
truelight@0: 
celestar@5385: #include "bridge_map.h"
celestar@5385: #include "clear_map.h"
celestar@5385: #include "rail_map.h"
celestar@5385: #include "road_map.h"
celestar@5385: #include "water_map.h"
celestar@5385: 
truelight@0: #include <stdarg.h>
truelight@0: 
tron@1093: void CallLandscapeTick(void);
tron@1093: void IncreaseDate(void);
tron@1093: void DoPaletteAnimations(void);
tron@1093: void MusicLoop(void);
tron@1093: void ResetMusic(void);
tron@1093: void InitializeStations(void);
tron@1093: void DeleteAllPlayerStations(void);
truelight@0: 
truelight@0: extern void SetDifficultyLevel(int mode, GameOptions *gm_opt);
truelight@0: extern void DoStartupNewPlayer(bool is_ai);
truelight@0: extern void ShowOSErrorBox(const char *buf);
truelight@0: 
pasky@1436: /* TODO: usrerror() for errors which are not of an internal nature but
pasky@1436:  * caused by the user, i.e. missing files or fatal configuration errors.
pasky@1436:  * Post-0.4.0 since Celestar doesn't want this in SVN before. --pasky */
pasky@1436: 
belugas@4171: void CDECL error(const char *s, ...)
tron@2639: {
truelight@0: 	va_list va;
truelight@0: 	char buf[512];
tron@2639: 
truelight@0: 	va_start(va, s);
Darkvater@5170: 	vsnprintf(buf, lengthof(buf), s, va);
truelight@0: 	va_end(va);
truelight@193: 
truelight@0: 	ShowOSErrorBox(buf);
tron@2639: 	if (_video_driver != NULL) _video_driver->stop();
truelight@0: 
truelight@0: 	assert(0);
truelight@0: 	exit(1);
truelight@0: }
truelight@0: 
truelight@0: void CDECL ShowInfoF(const char *str, ...)
truelight@0: {
truelight@0: 	va_list va;
truelight@0: 	char buf[1024];
truelight@0: 	va_start(va, str);
Darkvater@5170: 	vsnprintf(buf, lengthof(buf), str, va);
truelight@0: 	va_end(va);
truelight@0: 	ShowInfo(buf);
truelight@0: }
truelight@0: 
truelight@0: 
tron@1310: void *ReadFileToMem(const char *filename, size_t *lenp, size_t maxsize)
truelight@0: {
truelight@0: 	FILE *in;
tron@1105: 	byte *mem;
truelight@0: 	size_t len;
truelight@0: 
truelight@0: 	in = fopen(filename, "rb");
tron@2639: 	if (in == NULL) return NULL;
truelight@0: 
truelight@0: 	fseek(in, 0, SEEK_END);
truelight@0: 	len = ftell(in);
truelight@0: 	fseek(in, 0, SEEK_SET);
tron@1105: 	if (len > maxsize || (mem = malloc(len + 1)) == NULL) {
truelight@0: 		fclose(in);
truelight@0: 		return NULL;
truelight@0: 	}
tron@1105: 	mem[len] = 0;
truelight@0: 	if (fread(mem, len, 1, in) != 1) {
truelight@0: 		fclose(in);
truelight@0: 		free(mem);
truelight@0: 		return NULL;
truelight@0: 	}
truelight@0: 	fclose(in);
truelight@0: 
truelight@0: 	*lenp = len;
truelight@0: 	return mem;
truelight@0: }
truelight@0: 
tron@1093: static void showhelp(void)
truelight@0: {
Darkvater@4840: 	extern const char _openttd_revision[];
truelight@0: 	char buf[4096], *p;
truelight@0: 
Darkvater@5170: 	p = buf;
truelight@2831: 
Darkvater@5170: 	p += snprintf(p, lengthof(buf), "OpenTTD %s\n", _openttd_revision);
Darkvater@5170: 	p = strecpy(p,
truelight@2831: 		"\n"
truelight@2831: 		"\n"
truelight@0: 		"Command line options:\n"
truelight@543: 		"  -v drv              = Set video driver (see below)\n"
truelight@543: 		"  -s drv              = Set sound driver (see below)\n"
truelight@543: 		"  -m drv              = Set music driver (see below)\n"
truelight@543: 		"  -r res              = Set resolution (for instance 800x600)\n"
truelight@543: 		"  -h                  = Display this help text\n"
rubidium@4285: 		"  -t year             = Set starting year\n"
pasky@1440: 		"  -d [[fac=]lvl[,...]]= Debug mode\n"
truelight@543: 		"  -e                  = Start Editor\n"
truelight@543: 		"  -g [savegame]       = Start new/save game immediately\n"
truelight@543: 		"  -G seed             = Set random seed\n"
truelight@543: 		"  -n [ip#player:port] = Start networkgame\n"
truelight@543: 		"  -D                  = Start dedicated server\n"
tron@4077: #if !defined(__MORPHOS__) && !defined(__AMIGA__) && !defined(WIN32)
truelight@704: 		"  -f                  = Fork into the background (dedicated only)\n"
tron@4077: #endif
truelight@2831: 		"  -i                  = Force to use the DOS palette\n"
truelight@2831: 		"                          (use this if you see a lot of pink)\n"
truelight@2831: 		"  -c config_file      = Use 'config_file' instead of 'openttd.cfg'\n"
Darkvater@5170: 		"\n",
Darkvater@5170: 		lastof(buf)
truelight@0: 	);
truelight@0: 
Darkvater@5170: 	p = GetDriverList(p, lastof(buf));
truelight@0: 
truelight@0: 	ShowInfo(buf);
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: typedef struct {
truelight@0: 	char *opt;
truelight@0: 	int numleft;
truelight@0: 	char **argv;
truelight@0: 	const char *options;
truelight@0: 	char *cont;
truelight@0: } MyGetOptData;
truelight@0: 
truelight@0: static void MyGetOptInit(MyGetOptData *md, int argc, char **argv, const char *options)
truelight@0: {
truelight@0: 	md->cont = NULL;
truelight@0: 	md->numleft = argc;
truelight@0: 	md->argv = argv;
truelight@0: 	md->options = options;
truelight@0: }
truelight@0: 
truelight@0: static int MyGetOpt(MyGetOptData *md)
truelight@0: {
truelight@0: 	char *s,*r,*t;
truelight@0: 
tron@2639: 	s = md->cont;
tron@2639: 	if (s != NULL)
truelight@0: 		goto md_continue_here;
truelight@0: 
tron@2639: 	for (;;) {
tron@2639: 		if (--md->numleft < 0) return -1;
truelight@0: 
truelight@0: 		s = *md->argv++;
truelight@0: 		if (*s == '-') {
truelight@0: md_continue_here:;
truelight@0: 			s++;
truelight@0: 			if (*s != 0) {
truelight@0: 				// Found argument, try to locate it in options.
truelight@0: 				if (*s == ':' || (r = strchr(md->options, *s)) == NULL) {
truelight@0: 					// ERROR!
truelight@0: 					return -2;
truelight@0: 				}
truelight@0: 				if (r[1] == ':') {
truelight@0: 					// Item wants an argument. Check if the argument follows, or if it comes as a separate arg.
truelight@0: 					if (!*(t = s + 1)) {
truelight@0: 						// It comes as a separate arg. Check if out of args?
truelight@0: 						if (--md->numleft < 0 || *(t = *md->argv) == '-') {
truelight@0: 							// Check if item is optional?
truelight@0: 							if (r[2] != ':')
truelight@0: 								return -2;
truelight@0: 							md->numleft++;
truelight@0: 							t = NULL;
truelight@0: 						} else {
truelight@0: 							md->argv++;
truelight@0: 						}
truelight@0: 					}
truelight@0: 					md->opt = t;
truelight@0: 					md->cont = NULL;
truelight@0: 					return *s;
truelight@0: 				}
truelight@0: 				md->opt = NULL;
truelight@0: 				md->cont = s;
truelight@0: 				return *s;
truelight@0: 			}
truelight@0: 		} else {
truelight@0: 			// This is currently not supported.
truelight@0: 			return -2;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
belugas@4171: static void ParseResolution(int res[2], const char *s)
truelight@0: {
truelight@0: 	char *t = strchr(s, 'x');
truelight@0: 	if (t == NULL) {
truelight@0: 		ShowInfoF("Invalid resolution '%s'", s);
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
Darkvater@1764: 	res[0] = clamp(strtoul(s, NULL, 0), 64, MAX_SCREEN_WIDTH);
Darkvater@1764: 	res[1] = clamp(strtoul(t + 1, NULL, 0), 64, MAX_SCREEN_HEIGHT);
truelight@193: }
truelight@0: 
truelight@919: static void InitializeDynamicVariables(void)
truelight@919: {
truelight@919: 	/* Dynamic stuff needs to be initialized somewhere... */
truelight@1267: 	_town_sort     = NULL;
truelight@919: 	_industry_sort = NULL;
truelight@919: }
truelight@919: 
truelight@919: static void UnInitializeDynamicVariables(void)
truelight@919: {
truelight@919: 	/* Dynamic stuff needs to be free'd somewhere... */
tron@4983: 	CleanPool(&_Town_pool);
tron@4976: 	CleanPool(&_Industry_pool);
tron@4980: 	CleanPool(&_Station_pool);
tron@4972: 	CleanPool(&_Vehicle_pool);
tron@4979: 	CleanPool(&_Sign_pool);
tron@4977: 	CleanPool(&_Order_pool);
truelight@1260: 
tron@4277: 	free((void*)_town_sort);
tron@4277: 	free((void*)_industry_sort);
truelight@919: }
truelight@919: 
Darkvater@1474: static void UnInitializeGame(void)
Darkvater@1474: {
Darkvater@1474: 	UnInitWindowSystem();
Darkvater@1482: 
Darkvater@1482: 	free(_config_file);
Darkvater@1474: }
truelight@919: 
tron@1095: static void LoadIntroGame(void)
truelight@543: {
truelight@543: 	char filename[256];
Darkvater@1500: 
truelight@543: 	_game_mode = GM_MENU;
Darkvater@1500: 	CLRBITS(_display_opt, DO_TRANS_BUILDINGS); // don't make buildings transparent in intro
Darkvater@1500: 	_opt_ptr = &_opt_newgame;
peter1138@5228: 	ResetGRFConfig(false);
truelight@543: 
truelight@543: 	// Setup main window
Darkvater@1474: 	ResetWindowSystem();
truelight@543: 	SetupColorsAndInitialWindow();
truelight@543: 
truelight@543: 	// Generate a world.
Darkvater@5296: 	snprintf(filename, lengthof(filename), "%sopntitle.dat",  _paths.data_dir);
tron@3033: #if defined SECOND_DATA_DIR
tron@921: 	if (SaveOrLoad(filename, SL_LOAD) != SL_OK) {
Darkvater@5296: 		snprintf(filename, lengthof(filename), "%sopntitle.dat",  _paths.second_data_dir);
tron@3033: 	}
bjarni@561: #endif
tron@3033: 	if (SaveOrLoad(filename, SL_LOAD) != SL_OK) {
tron@3033: 		GenerateWorld(GW_EMPTY, 64, 64); // if failed loading, make empty world.
truelight@4300: 		WaitTillGeneratedWorld();
tron@921: 	}
truelight@543: 
truelight@543: 	_pause = 0;
rubidium@5376: 	SetLocalPlayer(0);
truelight@4336: 	/* Make sure you can't scroll in the menu */
truelight@4336: 	_scrolling_viewport = 0;
truelight@4336: 	_cursor.fix_at = false;
truelight@543: 	MarkWholeScreenDirty();
truelight@543: 
truelight@543: 	// Play main theme
truelight@543: 	if (_music_driver->is_song_playing()) ResetMusic();
truelight@543: }
truelight@543: 
truelight@2290: #if defined(UNIX) && !defined(__MORPHOS__)
darkvater@774: extern void DedicatedFork(void);
truelight@2290: #endif
truelight@704: 
belugas@4171: int ttd_main(int argc, char *argv[])
truelight@0: {
truelight@0: 	MyGetOptData mgo;
truelight@0: 	int i;
tron@1010: 	const char *optformat;
truelight@469: 	char musicdriver[16], sounddriver[16], videodriver[16];
truelight@0: 	int resolution[2] = {0,0};
rubidium@4293: 	Year startyear = INVALID_YEAR;
truelight@4300: 	uint generation_seed = GENERATE_NEW_SEED;
Darkvater@3058: 	bool dedicated = false;
Darkvater@3058: 	bool network   = false;
Darkvater@3058: 	char *network_conn = NULL;
tron@1406: 
truelight@0: 	musicdriver[0] = sounddriver[0] = videodriver[0] = 0;
truelight@0: 
truelight@0: 	_game_mode = GM_MENU;
truelight@0: 	_switch_mode = SM_MENU;
darkvater@172: 	_switch_mode_errorstr = INVALID_STRING_ID;
truelight@704: 	_dedicated_forks = false;
Darkvater@1482: 	_config_file = NULL;
truelight@0: 
truelight@543: 	// The last param of the following function means this:
truelight@543: 	//   a letter means: it accepts that param (e.g.: -h)
truelight@543: 	//   a ':' behind it means: it need a param (e.g.: -m<driver>)
truelight@543: 	//   a '::' behind it means: it can optional have a param (e.g.: -d<debug>)
Darkvater@4854: 	optformat = "m:s:v:hDn::eit:d::r:g::G:c:"
tron@4077: #if !defined(__MORPHOS__) && !defined(__AMIGA__) && !defined(WIN32)
tron@4077: 		"f"
tron@4077: #endif
tron@4077: 	;
bjarni@770: 
bjarni@770: 	MyGetOptInit(&mgo, argc-1, argv+1, optformat);
truelight@0: 	while ((i = MyGetOpt(&mgo)) != -1) {
tron@2951: 		switch (i) {
truelight@0: 		case 'm': ttd_strlcpy(musicdriver, mgo.opt, sizeof(musicdriver)); break;
truelight@0: 		case 's': ttd_strlcpy(sounddriver, mgo.opt, sizeof(sounddriver)); break;
truelight@0: 		case 'v': ttd_strlcpy(videodriver, mgo.opt, sizeof(videodriver)); break;
Darkvater@3058: 		case 'D':
Darkvater@3058: 			strcpy(musicdriver, "null");
Darkvater@3058: 			strcpy(sounddriver, "null");
Darkvater@3058: 			strcpy(videodriver, "dedicated");
Darkvater@3058: 			dedicated = true;
Darkvater@3058: 			break;
Darkvater@3058: 		case 'f': _dedicated_forks = true; break;
Darkvater@3058: 		case 'n':
Darkvater@3058: 			network = true;
Darkvater@3059: 			network_conn = mgo.opt; // optional IP parameter, NULL if unset
Darkvater@3058: 			break;
truelight@0: 		case 'r': ParseResolution(resolution, mgo.opt); break;
rubidium@4285: 		case 't': startyear = atoi(mgo.opt); break;
truelight@0: 		case 'd': {
truelight@0: #if defined(WIN32)
truelight@0: 				CreateConsole();
truelight@0: #endif
tron@2639: 				if (mgo.opt != NULL) SetDebugString(mgo.opt);
truelight@0: 			} break;
truelight@0: 		case 'e': _switch_mode = SM_EDITOR; break;
dominik@614: 		case 'i': _use_dos_palette = true; break;
truelight@193: 		case 'g':
tron@2639: 			if (mgo.opt != NULL) {
truelight@0: 				strcpy(_file_to_saveload.name, mgo.opt);
truelight@0: 				_switch_mode = SM_LOAD;
tron@4077: 			} else {
truelight@0: 				_switch_mode = SM_NEWGAME;
tron@4077: 			}
truelight@0: 			break;
truelight@4300: 		case 'G': generation_seed = atoi(mgo.opt); break;
Darkvater@3058: 		case 'c': _config_file = strdup(mgo.opt); break;
truelight@0: 		case -2:
tron@2026: 		case 'h':
truelight@0: 			showhelp();
truelight@0: 			return 0;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	DeterminePaths();
dominik@961: 	CheckExternalFiles();
truelight@704: 
truelight@2290: #if defined(UNIX) && !defined(__MORPHOS__)
truelight@704: 	// We must fork here, or we'll end up without some resources we need (like sockets)
truelight@704: 	if (_dedicated_forks)
truelight@704: 		DedicatedFork();
truelight@704: #endif
truelight@704: 
truelight@0: 	LoadFromConfig();
Darkvater@1688: 	CheckConfig();
darkvater@983: 	LoadFromHighScore();
truelight@0: 
truelight@0: 	// override config?
truelight@469: 	if (musicdriver[0]) ttd_strlcpy(_ini_musicdriver, musicdriver, sizeof(_ini_musicdriver));
truelight@469: 	if (sounddriver[0]) ttd_strlcpy(_ini_sounddriver, sounddriver, sizeof(_ini_sounddriver));
truelight@469: 	if (videodriver[0]) ttd_strlcpy(_ini_videodriver, videodriver, sizeof(_ini_videodriver));
truelight@0: 	if (resolution[0]) { _cur_resolution[0] = resolution[0]; _cur_resolution[1] = resolution[1]; }
rubidium@4293: 	if (startyear != INVALID_YEAR) _patches_newgame.starting_year = startyear;
truelight@4300: 	if (generation_seed != GENERATE_NEW_SEED) _patches_newgame.generation_seed = generation_seed;
truelight@0: 
tron@2951: 	if (_dedicated_forks && !dedicated) _dedicated_forks = false;
truelight@704: 
truelight@0: 	// enumerate language files
truelight@0: 	InitializeLanguagePacks();
truelight@0: 
truelight@0: 	// initialize screenshot formats
truelight@0: 	InitializeScreenshotFormats();
truelight@0: 
dominik@105: 	// initialize airport state machines
dominik@105: 	InitializeAirports();
truelight@193: 
truelight@919: 	/* initialize all variables that are allocated dynamically */
truelight@919: 	InitializeDynamicVariables();
truelight@919: 
truelight@2395: 	/* start the AI */
truelight@2395: 	AI_Initialize();
truelight@2395: 
truelight@0: 	// Sample catalogue
Darkvater@5380: 	DEBUG(misc, 1, "Loading sound effects...");
tron@1496: 	MxInitialize(11025);
tron@1496: 	SoundInitialize("sample.cat");
truelight@0: 
peter1138@5108: 	/* Initialize FreeType */
peter1138@5108: 	InitFreeType();
peter1138@5108: 
truelight@0: 	// This must be done early, since functions use the InvalidateWindow* calls
truelight@139: 	InitWindowSystem();
truelight@0: 
peter1138@5166: 	/* Initialize game palette */
peter1138@5166: 	GfxInitPalettes();
peter1138@5166: 
Darkvater@5380: 	DEBUG(driver, 1, "Loading drivers...");
truelight@0: 	LoadDriver(SOUND_DRIVER, _ini_sounddriver);
truelight@0: 	LoadDriver(MUSIC_DRIVER, _ini_musicdriver);
truelight@0: 	LoadDriver(VIDEO_DRIVER, _ini_videodriver); // load video last, to prevent an empty window while sound and music loads
tron@2526: 	_savegame_sort_order = SORT_BY_DATE | SORT_DESCENDING;
truelight@0: 
glx@3678: 	// restore saved music volume
glx@3678: 	_music_driver->set_volume(msf.music_vol);
glx@3678: 
Darkvater@4830: 	NetworkStartUp(); // initialize network-core
truelight@543: 
peter1138@5228: 	ScanNewGRFFiles();
peter1138@5228: 
Darkvater@1500: 	_opt_ptr = &_opt_newgame;
peter1138@5228: 	ResetGRFConfig(false);
truelight@193: 
Darkvater@1500: 	/* XXX - ugly hack, if diff_level is 9, it means we got no setting from the config file */
tron@2951: 	if (_opt_newgame.diff_level == 9) SetDifficultyLevel(0, &_opt_newgame);
truelight@0: 
truelight@4300: 	/* Make sure _patches is filled with _patches_newgame if we switch to a game directly */
truelight@4300: 	if (_switch_mode != SM_NONE) {
tron@5024: 		_opt = _opt_newgame;
truelight@4300: 		UpdatePatches();
truelight@4300: 	}
truelight@4300: 
truelight@139: 	// initialize the ingame console
truelight@139: 	IConsoleInit();
Darkvater@3312: 	_cursor.in_window = true;
darkvater@1246: 	InitializeGUI();
dominik@644: 	IConsoleCmdExec("exec scripts/autoexec.scr 0");
truelight@656: 
truelight@2828: 	GenerateWorld(GW_EMPTY, 64, 64); // Make the viewport initialization happy
truelight@4300: 	WaitTillGeneratedWorld();
truelight@1268: 
truelight@543: #ifdef ENABLE_NETWORK
tron@2951: 	if (network && _network_available) {
truelight@543: 		if (network_conn != NULL) {
tron@1329: 			const char *port = NULL;
tron@1329: 			const char *player = NULL;
truelight@543: 			uint16 rport;
truelight@543: 
truelight@543: 			rport = NETWORK_DEFAULT_PORT;
Darkvater@4878: 			_network_playas = PLAYER_NEW_COMPANY;
truelight@543: 
truelight@543: 			ParseConnectionString(&player, &port, network_conn);
truelight@543: 
Darkvater@4861: 			if (player != NULL) {
Darkvater@4861: 				_network_playas = atoi(player);
Darkvater@4878: 
Darkvater@4880: 				if (_network_playas != PLAYER_SPECTATOR) {
Darkvater@4880: 					_network_playas--;
Darkvater@4878: 					if (!IsValidPlayer(_network_playas)) return false;
Darkvater@4878: 				}
Darkvater@4861: 			}
truelight@543: 			if (port != NULL) rport = atoi(port);
truelight@543: 
truelight@543: 			LoadIntroGame();
truelight@543: 			_switch_mode = SM_NONE;
truelight@543: 			NetworkClientConnectGame(network_conn, rport);
tron@1109: 		}
truelight@543: 	}
truelight@543: #endif /* ENABLE_NETWORK */
truelight@543: 
tron@2228: 	_video_driver->main_loop();
truelight@139: 
tron@2285: 	WaitTillSaved();
truelight@139: 	IConsoleFree();
truelight@0: 
Darkvater@4830: 	if (_network_available) NetworkShutDown(); // Shut down the network and close any open connections
truelight@0: 
truelight@0: 	_video_driver->stop();
truelight@0: 	_music_driver->stop();
truelight@0: 	_sound_driver->stop();
truelight@0: 
truelight@0: 	SaveToConfig();
darkvater@983: 	SaveToHighScore();
truelight@0: 
dominik@105: 	// uninitialize airport state machines
dominik@105: 	UnInitializeAirports();
truelight@0: 
truelight@919: 	/* uninitialize variables that are allocated dynamic */
truelight@919: 	UnInitializeDynamicVariables();
truelight@919: 
truelight@2395: 	/* stop the AI */
truelight@2395: 	AI_Uninitialize();
truelight@2395: 
darkvater@1036: 	/* Close all and any open filehandles */
darkvater@1036: 	FioCloseAll();
Darkvater@1474: 	UnInitializeGame();
darkvater@1036: 
truelight@0: 	return 0;
truelight@0: }
truelight@0: 
rubidium@4548: void HandleExitGameRequest(void)
rubidium@4548: {
rubidium@4548: 	if (_game_mode == GM_MENU) { // do not ask to quit on the main screen
rubidium@4548: 		_exit_game = true;
rubidium@4548: 	} else if (_patches.autosave_on_exit) {
rubidium@4548: 		DoExitSave();
rubidium@4548: 		_exit_game = true;
rubidium@4548: 	} else {
rubidium@4548: 		AskExitGame();
rubidium@4548: 	}
rubidium@4548: }
rubidium@4548: 
rubidium@4548: 
Darkvater@2380: /** Mutex so that only one thread can communicate with the main program
Darkvater@2380:  * at any given time */
truelight@4323: static ThreadMsg _message = MSG_OTTD_NO_MESSAGE;
Darkvater@2380: 
truelight@4323: static inline void OTTD_ReleaseMutex(void) {_message = MSG_OTTD_NO_MESSAGE;}
Darkvater@2380: static inline ThreadMsg OTTD_PollThreadEvent(void) {return _message;}
Darkvater@2380: 
Darkvater@2380: /** Called by running thread to execute some action in the main game.
Darkvater@2380:  * It will stall as long as the mutex is not freed (handled) by the game */
Darkvater@2380: void OTTD_SendThreadMessage(ThreadMsg msg)
Darkvater@2380: {
Darkvater@2383: 	if (_exit_game) return;
truelight@4323: 	while (_message != MSG_OTTD_NO_MESSAGE) CSleep(10);
Darkvater@2380: 
Darkvater@2380: 	_message = msg;
Darkvater@2380: }
Darkvater@2380: 
Darkvater@2380: 
Darkvater@2380: /** Handle the user-messages sent to us
Darkvater@2380:  * @param message message sent
Darkvater@2380:  */
tron@2817: static void ProcessSentMessage(ThreadMsg message)
Darkvater@2380: {
Darkvater@2380: 	switch (message) {
Darkvater@2380: 		case MSG_OTTD_SAVETHREAD_DONE:  SaveFileDone(); break;
Darkvater@2380: 		case MSG_OTTD_SAVETHREAD_ERROR: SaveFileError(); break;
Darkvater@2380: 		default: NOT_REACHED();
Darkvater@2380: 	}
Darkvater@2380: 
Darkvater@2380: 	OTTD_ReleaseMutex(); // release mutex so that other threads, messages can be handled
Darkvater@2380: }
Darkvater@2380: 
truelight@0: static void ShowScreenshotResult(bool b)
truelight@0: {
truelight@0: 	if (b) {
ludde@2055: 		SetDParamStr(0, _screenshot_name);
truelight@0: 		ShowErrorMessage(INVALID_STRING_ID, STR_031B_SCREENSHOT_SUCCESSFULLY, 0, 0);
truelight@0: 	} else {
truelight@0: 		ShowErrorMessage(INVALID_STRING_ID, STR_031C_SCREENSHOT_FAILED, 0, 0);
truelight@0: 	}
truelight@0: 
truelight@0: }
truelight@0: 
truelight@4300: static void MakeNewGameDone(void)
truelight@4300: {
truelight@4300: 	/* In a dedicated server, the server does not play */
truelight@4300: 	if (_network_dedicated) {
rubidium@5376: 		SetLocalPlayer(PLAYER_SPECTATOR);
truelight@4300: 		return;
truelight@4300: 	}
truelight@4300: 
truelight@4300: 	/* Create a single player */
truelight@4300: 	DoStartupNewPlayer(false);
truelight@4300: 
rubidium@5376: 	SetLocalPlayer(0);
truelight@4300: 	_current_player = _local_player;
peter1138@4661: 	DoCommandP(0, (_patches.autorenew << 15 ) | (_patches.autorenew_months << 16) | 4, _patches.autorenew_money, NULL, CMD_SET_AUTOREPLACE);
truelight@4300: 
KUDr@5116: 	SettingsDisableElrail(_patches.disable_elrails);
KUDr@5116: 
truelight@4300: 	MarkWholeScreenDirty();
truelight@4300: }
truelight@4300: 
truelight@4300: static void MakeNewGame(bool from_heightmap)
truelight@0: {
truelight@0: 	_game_mode = GM_NORMAL;
truelight@0: 
peter1138@5313: 	ResetGRFConfig(true);
peter1138@5313: 
truelight@4300: 	GenerateWorldSetCallback(&MakeNewGameDone);
truelight@4300: 	GenerateWorld(from_heightmap ? GW_HEIGHTMAP : GW_NEWGAME, 1 << _patches.map_x, 1 << _patches.map_y);
truelight@4300: }
truelight@0: 
truelight@4300: static void MakeNewEditorWorldDone(void)
truelight@4300: {
rubidium@5376: 	SetLocalPlayer(OWNER_NONE);
truelight@0: 
truelight@0: 	MarkWholeScreenDirty();
truelight@0: }
truelight@0: 
tron@1093: static void MakeNewEditorWorld(void)
truelight@0: {
truelight@0: 	_game_mode = GM_EDITOR;
truelight@0: 
peter1138@5313: 	ResetGRFConfig(true);
peter1138@5313: 
truelight@4300: 	GenerateWorldSetCallback(&MakeNewEditorWorldDone);
truelight@2828: 	GenerateWorld(GW_EMPTY, 1 << _patches.map_x, 1 << _patches.map_y);
truelight@0: }
truelight@0: 
tron@1093: void StartupPlayers(void);
tron@1093: void StartupDisasters(void);
Darkvater@3891: extern void StartupEconomy(void);
dominik@116: 
Darkvater@1500: /**
Darkvater@1500:  * Start Scenario starts a new game based on a scenario.
Darkvater@1500:  * Eg 'New Game' --> select a preset scenario
Darkvater@1501:  * This starts a scenario based on your current difficulty settings
Darkvater@1500:  */
tron@1095: static void StartScenario(void)
truelight@0: {
truelight@0: 	_game_mode = GM_NORMAL;
truelight@0: 
truelight@0: 	// invalid type
truelight@0: 	if (_file_to_saveload.mode == SL_INVALID) {
Darkvater@5380: 		DEBUG(sl, 0, "Savegame is obsolete or invalid format: '%s'", _file_to_saveload.name);
Darkvater@2749: 		ShowErrorMessage(INVALID_STRING_ID, STR_4009_GAME_LOAD_FAILED, 0, 0);
truelight@0: 		_game_mode = GM_MENU;
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
dominik@136: 	// Reinitialize windows
Darkvater@1474: 	ResetWindowSystem();
truelight@0: 
truelight@0: 	SetupColorsAndInitialWindow();
truelight@0: 
peter1138@5313: 	ResetGRFConfig(true);
peter1138@5313: 
truelight@0: 	// Load game
truelight@0: 	if (SaveOrLoad(_file_to_saveload.name, _file_to_saveload.mode) != SL_OK) {
truelight@0: 		LoadIntroGame();
Darkvater@2749: 		ShowErrorMessage(INVALID_STRING_ID, STR_4009_GAME_LOAD_FAILED, 0, 0);
truelight@0: 	}
truelight@0: 
Darkvater@1501: 	_opt_ptr = &_opt;
tron@5024: 	_opt_ptr->diff = _opt_newgame.diff;
Darkvater@1501: 	_opt.diff_level = _opt_newgame.diff_level;
Darkvater@1500: 
dominik@115: 	// Inititalize data
Darkvater@3891: 	StartupEconomy();
dominik@115: 	StartupPlayers();
dominik@115: 	StartupEngines();
dominik@115: 	StartupDisasters();
dominik@115: 
rubidium@5376: 	SetLocalPlayer(0);
bjarni@2293: 	_current_player = _local_player;
peter1138@4661: 	DoCommandP(0, (_patches.autorenew << 15 ) | (_patches.autorenew_months << 16) | 4, _patches.autorenew_money, NULL, CMD_SET_AUTOREPLACE);
truelight@0: 
truelight@0: 	MarkWholeScreenDirty();
truelight@0: }
truelight@0: 
truelight@543: bool SafeSaveOrLoad(const char *filename, int mode, int newgm)
truelight@0: {
truelight@0: 	byte ogm = _game_mode;
truelight@0: 
truelight@0: 	_game_mode = newgm;
tron@3024: 	switch (SaveOrLoad(filename, mode)) {
tron@3024: 		case SL_OK: return true;
tron@3024: 
tron@3024: 		case SL_REINIT:
tron@3024: 			switch (ogm) {
tron@3024: 				case GM_MENU:   LoadIntroGame();      break;
tron@3024: 				case GM_EDITOR: MakeNewEditorWorld(); break;
truelight@4300: 				default:        MakeNewGame(false);   break;
tron@3024: 			}
tron@3024: 			return false;
tron@3024: 
tron@3024: 		default:
tron@3024: 			_game_mode = ogm;
tron@3024: 			return false;
tron@2639: 	}
truelight@0: }
truelight@0: 
truelight@543: void SwitchMode(int new_mode)
truelight@0: {
truelight@543: #ifdef ENABLE_NETWORK
truelight@543: 	// If we are saving something, the network stays in his current state
truelight@543: 	if (new_mode != SM_SAVE) {
truelight@543: 		// If the network is active, make it not-active
truelight@543: 		if (_networking) {
truelight@543: 			if (_network_server && (new_mode == SM_LOAD || new_mode == SM_NEWGAME)) {
truelight@543: 				NetworkReboot();
truelight@543: 				NetworkUDPClose();
truelight@543: 			} else {
truelight@543: 				NetworkDisconnect();
truelight@543: 				NetworkUDPClose();
truelight@543: 			}
truelight@543: 		}
truelight@543: 
truelight@543: 		// If we are a server, we restart the server
truelight@543: 		if (_is_network_server) {
truelight@543: 			// But not if we are going to the menu
truelight@543: 			if (new_mode != SM_MENU) {
truelight@543: 				NetworkServerStart();
truelight@543: 			} else {
truelight@543: 				// This client no longer wants to be a network-server
truelight@543: 				_is_network_server = false;
truelight@543: 			}
truelight@543: 		}
truelight@543: 	}
truelight@543: #endif /* ENABLE_NETWORK */
truelight@543: 
Darkvater@1500: 	switch (new_mode) {
Darkvater@1500: 	case SM_EDITOR: /* Switch to scenario editor */
truelight@0: 		MakeNewEditorWorld();
truelight@0: 		break;
truelight@0: 
Darkvater@1500: 	case SM_NEWGAME: /* New Game --> 'Random game' */
truelight@630: #ifdef ENABLE_NETWORK
tron@2951: 		if (_network_server) {
tron@2989: 			snprintf(_network_game_info.map_name, lengthof(_network_game_info.map_name), "Random Map");
tron@2951: 		}
truelight@630: #endif /* ENABLE_NETWORK */
truelight@4300: 		MakeNewGame(false);
truelight@0: 		break;
truelight@0: 
Darkvater@1500: 	case SM_START_SCENARIO: /* New Game --> Choose one of the preset scenarios */
tron@2951: #ifdef ENABLE_NETWORK
tron@2951: 		if (_network_server) {
tron@2989: 			snprintf(_network_game_info.map_name, lengthof(_network_game_info.map_name), "%s (Loaded scenario)", _file_to_saveload.title);
tron@2951: 		}
tron@2951: #endif /* ENABLE_NETWORK */
truelight@543: 		StartScenario();
truelight@543: 		break;
truelight@543: 
Darkvater@1500: 	case SM_LOAD: { /* Load game, Play Scenario */
Darkvater@1500: 		_opt_ptr = &_opt;
peter1138@5228: 		ResetGRFConfig(true);
truelight@0: 
truelight@0: 		if (!SafeSaveOrLoad(_file_to_saveload.name, _file_to_saveload.mode, GM_NORMAL)) {
truelight@942: 			LoadIntroGame();
Darkvater@2749: 			ShowErrorMessage(INVALID_STRING_ID, STR_4009_GAME_LOAD_FAILED, 0, 0);
truelight@0: 		} else {
Darkvater@5197: 			/* Update the local player for a loaded game. It is either always
Darkvater@5197: 			 * player #1 (eg 0) or in the case of a dedicated server a spectator */
rubidium@5376: 			SetLocalPlayer(_network_dedicated ? PLAYER_SPECTATOR : 0);
truelight@0: 			DoCommandP(0, 0, 0, NULL, CMD_PAUSE); // decrease pause counter (was increased from opening load dialog)
truelight@630: #ifdef ENABLE_NETWORK
tron@2951: 			if (_network_server) {
tron@2989: 				snprintf(_network_game_info.map_name, lengthof(_network_game_info.map_name), "%s (Loaded game)", _file_to_saveload.title);
tron@2951: 			}
truelight@630: #endif /* ENABLE_NETWORK */
truelight@0: 		}
truelight@0: 		break;
truelight@0: 	}
truelight@0: 
truelight@4300: 	case SM_START_HEIGHTMAP: /* Load a heightmap and start a new game from it */
truelight@4300: #ifdef ENABLE_NETWORK
truelight@4300: 		if (_network_server) {
truelight@4300: 			snprintf(_network_game_info.map_name, lengthof(_network_game_info.map_name), "%s (Heightmap)", _file_to_saveload.title);
truelight@4300: 		}
truelight@4300: #endif /* ENABLE_NETWORK */
truelight@4300: 		MakeNewGame(true);
truelight@4300: 		break;
truelight@4300: 
truelight@4300: 	case SM_LOAD_HEIGHTMAP: /* Load heightmap from scenario editor */
rubidium@5376: 		SetLocalPlayer(OWNER_NONE);
truelight@4300: 
truelight@4300: 		GenerateWorld(GW_HEIGHTMAP, 1 << _patches.map_x, 1 << _patches.map_y);
truelight@4300: 		MarkWholeScreenDirty();
truelight@4300: 		break;
truelight@4300: 
Darkvater@1500: 	case SM_LOAD_SCENARIO: { /* Load scenario from scenario editor */
tron@2634: 		if (SafeSaveOrLoad(_file_to_saveload.name, _file_to_saveload.mode, GM_EDITOR)) {
Darkvater@4260: 			Player *p;
truelight@0: 
Darkvater@1500: 			_opt_ptr = &_opt;
truelight@0: 
rubidium@5376: 			SetLocalPlayer(OWNER_NONE);
truelight@0: 			_generating_world = true;
Darkvater@4260: 			/* Delete all players */
Darkvater@4260: 			FOR_ALL_PLAYERS(p) {
Darkvater@4260: 				if (p->is_active) {
Darkvater@4848: 					ChangeOwnershipOfPlayerItems(p->index, PLAYER_SPECTATOR);
Darkvater@4260: 					p->is_active = false;
Darkvater@4260: 				}
truelight@0: 			}
truelight@0: 			_generating_world = false;
rubidium@4537: 			_patches_newgame.starting_year = _cur_year;
truelight@0: 			// delete all stations owned by a player
truelight@0: 			DeleteAllPlayerStations();
tron@2639: 		} else {
truelight@0: 			ShowErrorMessage(INVALID_STRING_ID, STR_4009_GAME_LOAD_FAILED, 0, 0);
tron@2639: 		}
truelight@0: 		break;
truelight@0: 	}
truelight@0: 
Darkvater@1500: 	case SM_MENU: /* Switch to game intro menu */
truelight@0: 		LoadIntroGame();
truelight@0: 		break;
truelight@0: 
Darkvater@1500: 	case SM_SAVE: /* Save game */
tron@2639: 		if (SaveOrLoad(_file_to_saveload.name, SL_SAVE) != SL_OK) {
truelight@0: 			ShowErrorMessage(INVALID_STRING_ID, STR_4007_GAME_SAVE_FAILED, 0, 0);
tron@2639: 		} else {
truelight@0: 			DeleteWindowById(WC_SAVELOAD, 0);
tron@2639: 		}
truelight@0: 		break;
truelight@0: 
Darkvater@1500: 	case SM_GENRANDLAND: /* Generate random land within scenario editor */
rubidium@5376: 		SetLocalPlayer(OWNER_NONE);
tron@2951: 		GenerateWorld(GW_RANDOM, 1 << _patches.map_x, 1 << _patches.map_y);
truelight@0: 		// XXX: set date
truelight@0: 		MarkWholeScreenDirty();
truelight@0: 		break;
truelight@0: 	}
truelight@193: 
tron@2951: 	if (_switch_mode_errorstr != INVALID_STRING_ID) {
tron@2951: 		ShowErrorMessage(INVALID_STRING_ID, _switch_mode_errorstr, 0, 0);
tron@2951: 	}
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: // State controlling game loop.
truelight@0: // The state must not be changed from anywhere
truelight@0: // but here.
truelight@0: // That check is enforced in DoCommand.
tron@1093: void StateGameLoop(void)
truelight@0: {
darkvater@213: 	// dont execute the state loop during pause
darkvater@213: 	if (_pause) return;
truelight@4300: 	if (IsGeneratingWorld()) return;
darkvater@213: 
truelight@0: 	if (_game_mode == GM_EDITOR) {
truelight@0: 		RunTileLoop();
truelight@0: 		CallVehicleTicks();
truelight@0: 		CallLandscapeTick();
truelight@0: 		CallWindowTickEvent();
truelight@0: 		NewsLoop();
truelight@0: 	} else {
signde@206: 		// All these actions has to be done from OWNER_NONE
signde@206: 		//  for multiplayer compatibility
tron@2498: 		PlayerID p = _current_player;
signde@206: 		_current_player = OWNER_NONE;
signde@206: 
truelight@0: 		AnimateAnimatedTiles();
truelight@0: 		IncreaseDate();
truelight@0: 		RunTileLoop();
truelight@0: 		CallVehicleTicks();
truelight@0: 		CallLandscapeTick();
truelight@0: 
truelight@2395: 		AI_RunGameLoop();
truelight@0: 
truelight@0: 		CallWindowTickEvent();
truelight@0: 		NewsLoop();
signde@206: 		_current_player = p;
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@1093: static void DoAutosave(void)
truelight@0: {
truelight@0: 	char buf[200];
truelight@193: 
Darkvater@4848: 	if (_patches.keep_all_autosave && _local_player != PLAYER_SPECTATOR) {
celestar@1962: 		const Player *p = GetPlayer(_local_player);
Darkvater@4912: 		char* s = buf;
Darkvater@4912: 
Darkvater@5296: 		s += snprintf(buf, lengthof(buf), "%s%s", _paths.autosave_dir, PATHSEP);
Darkvater@1500: 
tron@534: 		SetDParam(0, p->name_1);
tron@534: 		SetDParam(1, p->name_2);
tron@534: 		SetDParam(2, _date);
Darkvater@4912: 		s = GetString(s, STR_4004, lastof(buf));
Darkvater@4912: 		strecpy(s, ".sav", lastof(buf));
bjarni@2672: 	} else { /* generate a savegame name and number according to _patches.max_num_autosaves */
Darkvater@5296: 		snprintf(buf, lengthof(buf), "%s%sautosave%d.sav", _paths.autosave_dir, PATHSEP, _autosave_ctr);
bjarni@2672: 
bjarni@2672: 		_autosave_ctr++;
bjarni@2672: 		if (_autosave_ctr >= _patches.max_num_autosaves) {
bjarni@2672: 			// we reached the limit for numbers of autosaves. We will start over
bjarni@2672: 			_autosave_ctr = 0;
bjarni@2672: 		}
truelight@0: 	}
truelight@0: 
Darkvater@5380: 	DEBUG(sl, 2, "Autosaving to '%s'", buf);
truelight@0: 	if (SaveOrLoad(buf, SL_SAVE) != SL_OK)
truelight@0: 		ShowErrorMessage(INVALID_STRING_ID, STR_AUTOSAVE_FAILED, 0, 0);
truelight@0: }
truelight@0: 
Darkvater@1397: static void ScrollMainViewport(int x, int y)
Darkvater@1397: {
rubidium@4536: 	if (_game_mode != GM_MENU) {
Darkvater@1397: 		Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
Darkvater@1397: 		assert(w);
Darkvater@1397: 
Darkvater@1397: 		WP(w,vp_d).scrollpos_x += x << w->viewport->zoom;
Darkvater@1397: 		WP(w,vp_d).scrollpos_y += y << w->viewport->zoom;
Darkvater@1397: 	}
Darkvater@1397: }
Darkvater@1397: 
Darkvater@1397: static const int8 scrollamt[16][2] = {
rubidium@4344: 	{ 0,  0},
rubidium@4344: 	{-2,  0}, //  1 : left
rubidium@4344: 	{ 0, -2}, //  2 : up
rubidium@4344: 	{-2, -1}, //  3 : left + up
rubidium@4344: 	{ 2,  0}, //  4 : right
rubidium@4344: 	{ 0,  0}, //  5 : left + right
rubidium@4344: 	{ 2, -1}, //  6 : right + up
rubidium@4344: 	{ 0, -2}, //  7 : left + right + up = up
rubidium@4344: 	{ 0  ,2}, //  8 : down
rubidium@4344: 	{-2  ,1}, //  9 : down+left
rubidium@4344: 	{ 0,  0}, // 10 : impossible
rubidium@4344: 	{-2,  0}, // 11 : left + up + down = left
rubidium@4344: 	{ 2,  1}, // 12 : down+right
rubidium@4344: 	{ 0,  2}, // 13 : left + right + down = down
rubidium@4344: 	{ 0, -2}, // 14 : left + right + up = up
rubidium@4344: 	{ 0,  0}, // 15 : impossible
Darkvater@1397: };
Darkvater@1397: 
Darkvater@1397: static void HandleKeyScrolling(void)
Darkvater@1397: {
Darkvater@1397: 	if (_dirkeys && !_no_scroll) {
Darkvater@1397: 		int factor = _shift_pressed ? 50 : 10;
Darkvater@1397: 		ScrollMainViewport(scrollamt[_dirkeys][0] * factor, scrollamt[_dirkeys][1] * factor);
Darkvater@1397: 	}
Darkvater@1397: }
dominik@1199: 
tron@1093: void GameLoop(void)
truelight@0: {
Darkvater@2380: 	ThreadMsg message;
Darkvater@2380: 
Darkvater@2380: 	if ((message = OTTD_PollThreadEvent()) != 0) ProcessSentMessage(message);
truelight@0: 
truelight@0: 	// autosave game?
truelight@0: 	if (_do_autosave) {
truelight@0: 		_do_autosave = false;
truelight@0: 		DoAutosave();
truelight@0: 		RedrawAutosave();
truelight@0: 	}
truelight@0: 
dominik@1199: 	// handle scrolling of the main window
tron@4502: 	HandleKeyScrolling();
dominik@1199: 
truelight@0: 	// make a screenshot?
belugas@4184: 	if (IsScreenshotRequested()) ShowScreenshotResult(MakeScreenshot());
truelight@0: 
truelight@0: 	// switch game mode?
tron@3024: 	if (_switch_mode != SM_NONE) {
tron@3024: 		SwitchMode(_switch_mode);
truelight@0: 		_switch_mode = SM_NONE;
truelight@0: 	}
truelight@0: 
truelight@0: 	IncreaseSpriteLRU();
truelight@0: 	InteractiveRandom();
truelight@0: 
tron@2639: 	if (_scroller_click_timeout > 3) {
truelight@0: 		_scroller_click_timeout -= 3;
tron@2639: 	} else {
truelight@0: 		_scroller_click_timeout = 0;
tron@2639: 	}
truelight@0: 
truelight@0: 	_caret_timer += 3;
tron@2639: 	_timer_counter += 8;
truelight@0: 	CursorTick();
truelight@0: 
truelight@543: #ifdef ENABLE_NETWORK
truelight@543: 	// Check for UDP stuff
Darkvater@4830: 	if (_network_available) NetworkUDPGameLoop();
truelight@0: 
truelight@4300: 	if (_networking && !IsGeneratingWorld()) {
truelight@543: 		// Multiplayer
truelight@543: 		NetworkGameLoop();
truelight@543: 	} else {
truelight@543: 		if (_network_reconnect > 0 && --_network_reconnect == 0) {
truelight@543: 			// This means that we want to reconnect to the last host
truelight@543: 			// We do this here, because it means that the network is really closed
truelight@543: 			NetworkClientConnectGame(_network_last_host, _network_last_port);
signde@206: 		}
truelight@543: 		// Singleplayer
darkvater@213: 		StateGameLoop();
truelight@0: 	}
truelight@543: #else
truelight@543: 	StateGameLoop();
truelight@543: #endif /* ENABLE_NETWORK */
truelight@0: 
tron@2639: 	if (!_pause && _display_opt & DO_FULL_ANIMATION) DoPaletteAnimations();
truelight@0: 
tron@2639: 	if (!_pause || _cheats.build_in_pause.value) MoveAllTextEffects();
truelight@0: 
pasky@1570: 	InputLoop();
truelight@0: 
tron@1608: 	MusicLoop();
truelight@0: }
truelight@0: 
tron@1093: void BeforeSaveGame(void)
truelight@0: {
belugas@4171: 	const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
truelight@0: 
darkvater@983: 	if (w != NULL) {
tron@2643: 		_saved_scrollpos_x = WP(w, const vp_d).scrollpos_x;
tron@2643: 		_saved_scrollpos_y = WP(w, const vp_d).scrollpos_y;
darkvater@983: 		_saved_scrollpos_zoom = w->viewport->zoom;
darkvater@983: 	}
truelight@0: }
truelight@0: 
tron@1095: static void ConvertTownOwner(void)
truelight@0: {
tron@1977: 	TileIndex tile;
truelight@0: 
tron@863: 	for (tile = 0; tile != MapSize(); tile++) {
tron@4000: 		switch (GetTileType(tile)) {
tron@4000: 			case MP_STREET:
tron@4000: 				if (IsLevelCrossing(tile) && GetCrossingRoadOwner(tile) & 0x80) {
tron@4000: 					SetCrossingRoadOwner(tile, OWNER_TOWN);
tron@4000: 				}
tron@4000: 				/* FALLTHROUGH */
truelight@0: 
tron@4000: 			case MP_TUNNELBRIDGE:
tron@4000: 				if (GetTileOwner(tile) & 0x80) SetTileOwner(tile, OWNER_TOWN);
tron@4000: 				break;
tron@4000: 
tron@4000: 			default: break;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: // before savegame version 4, the name of the company determined if it existed
tron@1095: static void CheckIsPlayerActive(void)
truelight@0: {
belugas@4171: 	Player *p;
tron@2639: 
truelight@0: 	FOR_ALL_PLAYERS(p) {
tron@2639: 		if (p->name_1 != 0) p->is_active = true;
truelight@0: 	}
truelight@0: }
truelight@0: 
dominik@121: // since savegame version 4.1, exclusive transport rights are stored at towns
tron@1095: static void UpdateExclusiveRights(void)
dominik@121: {
belugas@4171: 	Town *t;
tron@2639: 
tron@2639: 	FOR_ALL_TOWNS(t) {
truelight@4346: 		t->exclusivity = (byte)-1;
dominik@121: 	}
truelight@193: 
dominik@123: 	/* FIXME old exclusive rights status is not being imported (stored in s->blocked_months_obsolete)
rubidium@4549: 	 *   could be implemented this way:
rubidium@4549: 	 * 1.) Go through all stations
rubidium@4549: 	 *     Build an array town_blocked[ town_id ][ player_id ]
rubidium@4549: 	 *     that stores if at least one station in that town is blocked for a player
rubidium@4549: 	 * 2.) Go through that array, if you find a town that is not blocked for
rubidium@4549: 	 *     one player, but for all others, then give him exclusivity.
rubidium@4549: 	 */
dominik@121: }
dominik@121: 
tron@2756: static const byte convert_currency[] = {
dominik@762: 	 0,  1, 12,  8,  3,
dominik@762: 	10, 14, 19,  4,  5,
dominik@762: 	 9, 11, 13,  6, 17,
dominik@762: 	16, 22, 21,  7, 15,
dominik@762: 	18,  2, 20, };
dominik@762: 
dominik@762: // since savegame version 4.2 the currencies are arranged differently
tron@1095: static void UpdateCurrencies(void)
dominik@762: {
dominik@768: 	_opt.currency = convert_currency[_opt.currency];
dominik@762: }
dominik@762: 
tron@1181: /* Up to revision 1413 the invisible tiles at the southern border have not been
tron@1181:  * MP_VOID, even though they should have. This is fixed by this function
tron@1181:  */
tron@1095: static void UpdateVoidTiles(void)
dominik@929: {
tron@959: 	uint i;
tron@1181: 
tron@3075: 	for (i = 0; i < MapMaxY(); ++i) MakeVoid(i * MapSizeX() + MapMaxX());
tron@3075: 	for (i = 0; i < MapSizeX(); ++i) MakeVoid(MapSizeX() * MapMaxY() + i);
dominik@929: }
dominik@929: 
dominik@1165: // since savegame version 6.0 each sign has an "owner", signs without owner (from old games are set to 255)
dominik@1165: static void UpdateSignOwner(void)
dominik@1165: {
truelight@4349: 	Sign *si;
tron@2639: 
truelight@4349: 	FOR_ALL_SIGNS(si) si->owner = OWNER_NONE;
dominik@1165: }
dominik@1165: 
celestar@950: extern void UpdateOldAircraft( void );
celestar@950: extern void UpdateOilRig( void );
truelight@0: 
tron@3656: 
tron@3656: static inline RailType UpdateRailType(RailType rt, RailType min)
tron@3656: {
tron@3656: 	return rt >= min ? (RailType)(rt + 1): rt;
tron@3656: }
tron@3656: 
peter1138@2808: bool AfterLoadGame(void)
truelight@0: {
truelight@0: 	Window *w;
truelight@0: 	ViewPort *vp;
celestar@2147: 	Player *p;
truelight@988: 
truelight@0: 	// in version 2.1 of the savegame, town owner was unified.
truelight@2685: 	if (CheckSavegameVersionOldStyle(2, 1)) ConvertTownOwner();
truelight@0: 
dominik@121: 	// from version 4.1 of the savegame, exclusive rights are stored at towns
truelight@2685: 	if (CheckSavegameVersionOldStyle(4, 1)) UpdateExclusiveRights();
truelight@193: 
dominik@762: 	// from version 4.2 of the savegame, currencies are in a different order
truelight@2685: 	if (CheckSavegameVersionOldStyle(4, 2)) UpdateCurrencies();
dominik@762: 
truelight@2685: 	// from version 6.1 of the savegame, signs have an "owner"
truelight@2685: 	if (CheckSavegameVersionOldStyle(6, 1)) UpdateSignOwner();
dominik@1165: 
truelight@831: 	/* In old version there seems to be a problem that water is owned by
truelight@831: 	    OWNER_NONE, not OWNER_WATER.. I can't replicate it for the current
truelight@2685: 	    (4.3) version, so I just check when versions are older, and then
truelight@831: 	    walk through the whole map.. */
truelight@2685: 	if (CheckSavegameVersionOldStyle(4, 3)) {
tron@1981: 		TileIndex tile = TileXY(0, 0);
truelight@831: 		uint w = MapSizeX();
truelight@831: 		uint h = MapSizeY();
truelight@831: 
truelight@831: 		BEGIN_TILE_LOOP(tile_cur, w, h, tile)
tron@1901: 			if (IsTileType(tile_cur, MP_WATER) && GetTileOwner(tile_cur) >= MAX_PLAYERS)
tron@1902: 				SetTileOwner(tile_cur, OWNER_WATER);
truelight@831: 		END_TILE_LOOP(tile_cur, w, h, tile)
truelight@831: 	}
truelight@831: 
truelight@0: 	// convert road side to my format.
truelight@0: 	if (_opt.road_side) _opt.road_side = 1;
truelight@0: 
peter1138@5228: 	/* Check all NewGRFs are present */
peter1138@5228: 	if (!IsGoodGRFConfigList()) return false;
peter1138@5228: 
glx@5340: 	/* Update current year
glx@5340: 	 * must be done before loading sprites as some newgrfs check it */
glx@5340: 	SetDate(_date);
glx@5340: 
truelight@0: 	// Load the sprites
truelight@0: 	GfxLoadSprites();
peter1138@5155: 	LoadStringWidthTable();
truelight@0: 
peter1138@2814: 	/* Connect front and rear engines of multiheaded trains and converts
peter1138@2814: 	 * subtype to the new format */
peter1138@2814: 	if (CheckSavegameVersionOldStyle(17, 1)) ConvertOldMultiheadToNew();
peter1138@2814: 
bjarni@2928: 	/* Connect front and rear engines of multiheaded trains */
bjarni@2928: 	ConnectMultiheadedTrains();
bjarni@2855: 
truelight@0: 	// reinit the landscape variables (landscape might have changed)
truelight@0: 	InitializeLandscapeVariables(true);
truelight@193: 
truelight@0: 	// Update all vehicles
truelight@0: 	AfterLoadVehicles();
truelight@1542: 
truelight@1542: 	// Update all waypoints
truelight@2685: 	if (CheckSavegameVersion(12)) FixOldWaypoints();
truelight@1542: 
truelight@1542: 	UpdateAllWaypointSigns();
truelight@1542: 
truelight@0: 	// in version 2.2 of the savegame, we have new airports
truelight@2685: 	if (CheckSavegameVersionOldStyle(2, 2)) UpdateOldAircraft();
truelight@0: 
truelight@0: 	UpdateAllStationVirtCoord();
truelight@0: 
truelight@0: 	// Setup town coords
truelight@0: 	AfterLoadTown();
truelight@0: 	UpdateAllSignVirtCoords();
truelight@0: 
truelight@0: 	// make sure there is a town in the game
tron@2639: 	if (_game_mode == GM_NORMAL && !ClosestTownFromTile(0, (uint)-1)) {
truelight@0: 		_error_message = STR_NO_TOWN_IN_SCENARIO;
truelight@0: 		return false;
truelight@0: 	}
truelight@0: 
truelight@0: 	// Initialize windows
Darkvater@1474: 	ResetWindowSystem();
truelight@0: 	SetupColorsAndInitialWindow();
truelight@0: 
truelight@0: 	w = FindWindowById(WC_MAIN_WINDOW, 0);
truelight@0: 
truelight@0: 	WP(w,vp_d).scrollpos_x = _saved_scrollpos_x;
truelight@0: 	WP(w,vp_d).scrollpos_y = _saved_scrollpos_y;
truelight@193: 
truelight@0: 	vp = w->viewport;
truelight@0: 	vp->zoom = _saved_scrollpos_zoom;
truelight@0: 	vp->virtual_width = vp->width << vp->zoom;
truelight@0: 	vp->virtual_height = vp->height << vp->zoom;
truelight@0: 
truelight@2685: 	// in version 4.1 of the savegame, is_active was introduced to determine
truelight@0: 	// if a player does exist, rather then checking name_1
truelight@2685: 	if (CheckSavegameVersionOldStyle(4, 1)) CheckIsPlayerActive();
truelight@193: 
truelight@2685: 	// the void tiles on the southern border used to belong to a wrong class (pre 4.3).
truelight@2685: 	if (CheckSavegameVersionOldStyle(4, 3)) UpdateVoidTiles();
dominik@929: 
truelight@193: 	// If Load Scenario / New (Scenario) Game is used,
truelight@139: 	//  a player does not exist yet. So create one here.
truelight@543: 	// 1 exeption: network-games. Those can have 0 players
truelight@543: 	//   But this exeption is not true for network_servers!
truelight@543: 	if (!_players[0].is_active && (!_networking || (_networking && _network_server)))
truelight@139: 		DoStartupNewPlayer(false);
truelight@0: 
darkvater@152: 	DoZoomInOutWindow(ZOOM_NONE, w); // update button status
truelight@0: 	MarkWholeScreenDirty();
truelight@0: 
truelight@2685: 	// In 5.1, Oilrigs have been moved (again)
truelight@2685: 	if (CheckSavegameVersionOldStyle(5, 1)) UpdateOilRig();
celestar@950: 
truelight@2685: 	/* In version 6.1 we put the town index in the map-array. To do this, we need
truelight@2685: 	 *  to use m2 (16bit big), so we need to clean m2, and that is where this is
truelight@2685: 	 *  all about ;) */
truelight@2685: 	if (CheckSavegameVersionOldStyle(6, 1)) {
celestar@1264: 		BEGIN_TILE_LOOP(tile, MapSizeX(), MapSizeY(), 0) {
tron@3983: 			switch (GetTileType(tile)) {
tron@3983: 				case MP_HOUSE:
tron@3983: 					_m[tile].m4 = _m[tile].m2;
tron@3983: 					SetTownIndex(tile, CalcClosestTownFromTile(tile, (uint)-1)->index);
tron@3983: 					break;
tron@3983: 
tron@3983: 				case MP_STREET:
tron@3983: 					_m[tile].m4 |= (_m[tile].m2 << 4);
tron@3983: 					if (IsTileOwner(tile, OWNER_TOWN)) {
tron@3983: 						SetTownIndex(tile, CalcClosestTownFromTile(tile, (uint)-1)->index);
tron@3983: 					} else {
tron@3983: 						SetTownIndex(tile, 0);
tron@3983: 					}
tron@3983: 					break;
tron@3983: 
tron@3983: 				default: break;
celestar@1264: 			}
celestar@1264: 		} END_TILE_LOOP(tile, MapSizeX(), MapSizeY(), 0);
celestar@1264: 	}
celestar@1264: 
truelight@2685: 	/* From version 9.0, we update the max passengers of a town (was sometimes negative
truelight@2685: 	 *  before that. */
truelight@2685: 	if (CheckSavegameVersion(9)) {
celestar@1377: 		Town *t;
tron@2639: 		FOR_ALL_TOWNS(t) UpdateTownMaxPass(t);
celestar@1377: 	}
celestar@1377: 
truelight@2685: 	/* From version 16.0, we included autorenew on engines, which are now saved, but
truelight@2685: 	 *  of course, we do need to initialize them for older savegames. */
truelight@2685: 	if (CheckSavegameVersion(16)) {
bjarni@2293: 		FOR_ALL_PLAYERS(p) {
rubidium@5376: 			p->engine_renew_list   = NULL;
rubidium@5376: 			p->engine_renew        = false;
bjarni@2293: 			p->engine_renew_months = -6;
rubidium@5376: 			p->engine_renew_money  = 100000;
bjarni@2293: 		}
rubidium@5376: 
rubidium@5376: 		/* When loading a game, _local_player is not yet set to the correct value.
rubidium@5376: 		 * However, in a dedicated server we are a spectator, so nothing needs to
rubidium@5376: 		 * happen. In case we are not a dedicated server, the local player always
rubidium@5376: 		 * becomes player 0, unless we are in the scenario editor where all the
rubidium@5376: 		 * players are 'invalid'.
rubidium@5376: 		 */
rubidium@5376: 		if (!_network_dedicated && IsValidPlayer(0)) {
rubidium@5376: 			p = GetPlayer(0);
rubidium@5376: 			p->engine_renew        = _patches.autorenew;
bjarni@2322: 			p->engine_renew_months = _patches.autorenew_months;
rubidium@5376: 			p->engine_renew_money  = _patches.autorenew_money;
bjarni@2322: 		}
bjarni@2293: 	}
bjarni@2293: 
celestar@5385: 	if (CheckSavegameVersion(42)) {
celestar@5385: 		TileIndex map_end = MapSize();
celestar@5385: 		TileIndex tile;
celestar@5385: 		Vehicle* v;
celestar@5385: 
celestar@5385: 		for (tile = 0; tile != map_end; tile++) {
celestar@5385: 			if (MayHaveBridgeAbove(tile)) ClearBridgeMiddle(tile);
celestar@5385: 			if (IsBridgeTile(tile)) {
celestar@5385: 				if (HASBIT(_m[tile].m5, 6)) { // middle part
celestar@5385: 					Axis axis = (Axis)GB(_m[tile].m5, 0, 1);
celestar@5385: 
celestar@5385: 					if (HASBIT(_m[tile].m5, 5)) { // transport route under bridge?
celestar@5385: 						if (GB(_m[tile].m5, 3, 2) == TRANSPORT_RAIL) {
celestar@5385: 							MakeRailNormal(
celestar@5385: 								tile,
celestar@5385: 								GetTileOwner(tile),
celestar@5385: 								axis == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X,
celestar@5385: 								GetRailType(tile)
celestar@5385: 							);
celestar@5385: 						} else {
celestar@5385: 							TownID town = IsTileOwner(tile, OWNER_TOWN) ? ClosestTownFromTile(tile, (uint)-1)->index : 0;
celestar@5385: 
celestar@5385: 							MakeRoadNormal(
celestar@5385: 								tile,
celestar@5385: 								GetTileOwner(tile),
celestar@5385: 								axis == AXIS_X ? ROAD_Y : ROAD_X,
celestar@5385: 								town
celestar@5385: 							);
celestar@5385: 						}
celestar@5385: 					} else {
celestar@5385: 						if (GB(_m[tile].m5, 3, 2) == 0) {
celestar@5385: 							MakeClear(tile, CLEAR_GRASS, 3);
celestar@5385: 						} else {
celestar@5385: 							MakeCanal(tile, GetTileOwner(tile));
celestar@5385: 						}
celestar@5385: 					}
celestar@5385: 					SetBridgeMiddle(tile, axis);
celestar@5385: 				} else { // ramp
celestar@5385: 					Axis axis = (Axis)GB(_m[tile].m5, 0, 1);
celestar@5385: 					uint north_south = GB(_m[tile].m5, 5, 1);
celestar@5385: 					DiagDirection dir = ReverseDiagDir(XYNSToDiagDir(axis, north_south));
celestar@5385: 					TransportType type = (TransportType)GB(_m[tile].m5, 1, 2);
celestar@5385: 
celestar@5385: 					_m[tile].m5 = 1 << 7 | type << 2 | dir;
celestar@5385: 				}
celestar@5385: 			}
celestar@5385: 		}
celestar@5385: 
celestar@5385: 		FOR_ALL_VEHICLES(v) {
celestar@5385: 			if (v->type != VEH_Train && v->type != VEH_Road) continue;
celestar@5385: 			if (IsBridgeTile(v->tile)) {
celestar@5385: 				DiagDirection dir = GetBridgeRampDirection(v->tile);
celestar@5385: 
celestar@5385: 				if (dir != DirToDiagDir(v->direction)) continue;
celestar@5385: 				switch (dir) {
celestar@5385: 					default: NOT_REACHED();
celestar@5385: 					case DIAGDIR_NE: if ((v->x_pos & 0xF) !=  0)            continue; break;
celestar@5385: 					case DIAGDIR_SE: if ((v->y_pos & 0xF) != TILE_SIZE - 1) continue; break;
celestar@5385: 					case DIAGDIR_SW: if ((v->x_pos & 0xF) != TILE_SIZE - 1) continue; break;
celestar@5385: 					case DIAGDIR_NW: if ((v->y_pos & 0xF) !=  0)            continue; break;
celestar@5385: 				}
celestar@5385: 			} else if (v->z_pos > GetSlopeZ(v->x_pos, v->y_pos)) {
celestar@5385: 				v->tile = GetNorthernBridgeEnd(v->tile);
celestar@5385: 			} else {
celestar@5385: 				continue;
celestar@5385: 			}
celestar@5385: 			if (v->type == VEH_Train) {
celestar@5385: 				v->u.rail.track = 0x40;
celestar@5385: 			} else {
celestar@5385: 				v->u.road.state = 0xFF;
celestar@5385: 			}
celestar@5385: 		}
celestar@5385: 	}
celestar@5385: 
celestar@3355: 	/* Elrails got added in rev 24 */
celestar@3355: 	if (CheckSavegameVersion(24)) {
belugas@4171: 		Vehicle *v;
celestar@3355: 		uint i;
celestar@3355: 		TileIndex t;
tron@3656: 		RailType min_rail = RAILTYPE_ELECTRIC;
celestar@3355: 
celestar@3355: 		for (i = 0; i < lengthof(_engines); i++) {
belugas@4171: 			Engine *e = GetEngine(i);
celestar@3355: 			if (e->type == VEH_Train &&
celestar@3355: 					(e->railtype != RAILTYPE_RAIL || RailVehInfo(i)->engclass == 2)) {
celestar@3355: 				e->railtype++;
celestar@3355: 			}
celestar@3355: 		}
celestar@3355: 
celestar@3355: 		FOR_ALL_VEHICLES(v) {
celestar@3355: 			if (v->type == VEH_Train) {
celestar@3355: 				RailType rt = GetEngine(v->engine_type)->railtype;
celestar@3355: 
celestar@3355: 				v->u.rail.railtype = rt;
tron@3656: 				if (rt == RAILTYPE_ELECTRIC) min_rail = RAILTYPE_RAIL;
celestar@3355: 			}
celestar@3355: 		}
celestar@3355: 
celestar@3355: 		/* .. so we convert the entire map from normal to elrail (so maintain "fairness") */
celestar@3355: 		for (t = 0; t < MapSize(); t++) {
celestar@3355: 			switch (GetTileType(t)) {
celestar@3355: 				case MP_RAILWAY:
tron@3656: 					SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
celestar@3355: 					break;
celestar@3355: 
celestar@3355: 				case MP_STREET:
tron@3656: 					if (IsLevelCrossing(t)) {
tron@3656: 						SetRailTypeCrossing(t, UpdateRailType(GetRailTypeCrossing(t), min_rail));
tron@3656: 					}
celestar@3355: 					break;
celestar@3355: 
celestar@3355: 				case MP_STATION:
tron@4077: 					if (IsRailwayStation(t)) {
tron@3656: 						SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
tron@3656: 					}
celestar@3355: 					break;
celestar@3355: 
celestar@3355: 				case MP_TUNNELBRIDGE:
tron@3367: 					if (IsTunnel(t)) {
tron@3367: 						if (GetTunnelTransportType(t) == TRANSPORT_RAIL) {
tron@3656: 							SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
celestar@3355: 						}
celestar@3355: 					} else {
tron@3367: 						if (GetBridgeTransportType(t) == TRANSPORT_RAIL) {
tron@3656: 							SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
celestar@3355: 						}
celestar@3355: 					}
celestar@3355: 					break;
celestar@3355: 
celestar@3355: 				default:
celestar@3355: 					break;
celestar@3355: 			}
celestar@3355: 		}
celestar@3355: 
celestar@3355: 		FOR_ALL_VEHICLES(v) {
celestar@3355: 			if (v->type == VEH_Train && (IsFrontEngine(v) || IsFreeWagon(v))) TrainConsistChanged(v);
celestar@3355: 		}
celestar@3355: 
celestar@3355: 	}
celestar@3355: 
tron@2805: 	/* In version 16.1 of the savegame a player can decide if trains, which get
tron@2805: 	 * replaced, shall keep their old length. In all prior versions, just default
tron@2805: 	 * to false */
truelight@2685: 	if (CheckSavegameVersionOldStyle(16, 1)) {
tron@4077: 		FOR_ALL_PLAYERS(p) p->renew_keep_length = false;
bjarni@2617: 	}
bjarni@2617: 
peter1138@2670: 	/* In version 17, ground type is moved from m2 to m4 for depots and
peter1138@2670: 	 * waypoints to make way for storing the index in m2. The custom graphics
peter1138@2670: 	 * id which was stored in m4 is now saved as a grf/id reference in the
peter1138@2670: 	 * waypoint struct. */
truelight@2685: 	if (CheckSavegameVersion(17)) {
peter1138@2670: 		Waypoint *wp;
peter1138@2670: 
peter1138@2670: 		FOR_ALL_WAYPOINTS(wp) {
truelight@4346: 			if (wp->deleted == 0) {
belugas@3676: 				const StationSpec *statspec = NULL;
peter1138@2670: 
peter1138@2670: 				if (HASBIT(_m[wp->xy].m3, 4))
belugas@3676: 					statspec = GetCustomStationSpec(STAT_CLASS_WAYP, _m[wp->xy].m4 + 1);
peter1138@2670: 
belugas@3676: 				if (statspec != NULL) {
peter1138@2670: 					wp->stat_id = _m[wp->xy].m4 + 1;
belugas@3676: 					wp->grfid = statspec->grfid;
belugas@3676: 					wp->localidx = statspec->localidx;
peter1138@2670: 				} else {
peter1138@2670: 					// No custom graphics set, so set to default.
peter1138@2670: 					wp->stat_id = 0;
peter1138@2670: 					wp->grfid = 0;
peter1138@2670: 					wp->localidx = 0;
peter1138@2670: 				}
peter1138@2670: 
peter1138@2670: 				// Move ground type bits from m2 to m4.
peter1138@2670: 				_m[wp->xy].m4 = GB(_m[wp->xy].m2, 0, 4);
peter1138@2670: 				// Store waypoint index in the tile.
peter1138@2670: 				_m[wp->xy].m2 = wp->index;
peter1138@2670: 			}
peter1138@2670: 		}
peter1138@2670: 	} else {
peter1138@2670: 		/* As of version 17, we recalculate the custom graphic ID of waypoints
peter1138@2670: 		 * from the GRF ID / station index. */
Darkvater@5350: 		AfterLoadWaypoints();
peter1138@2670: 	}
peter1138@2670: 
Darkvater@2916: 	/* From version 15, we moved a semaphore bit from bit 2 to bit 3 in m4, making
Darkvater@2916: 	 *  room for PBS. Now in version 21 move it back :P. */
Darkvater@2916: 	if (CheckSavegameVersion(21) && !CheckSavegameVersion(15)) {
Darkvater@2916: 		BEGIN_TILE_LOOP(tile, MapSizeX(), MapSizeY(), 0) {
Darkvater@2916: 			if (IsTileType(tile, MP_RAILWAY)) {
Darkvater@2916: 				if (HasSignals(tile)) {
Darkvater@2916: 					// convert PBS signals to combo-signals
tron@3984: 					if (HASBIT(_m[tile].m4, 2)) SetSignalType(tile, SIGTYPE_COMBO);
Darkvater@2916: 
tron@3984: 					// move the signal variant back
tron@3984: 					SetSignalVariant(tile, HASBIT(_m[tile].m4, 3) ? SIG_SEMAPHORE : SIG_ELECTRIC);
Darkvater@2916: 					CLRBIT(_m[tile].m4, 3);
Darkvater@2916: 				}
Darkvater@2916: 
Darkvater@2916: 				// Clear PBS reservation on track
tron@4077: 				if (!IsTileDepotType(tile, TRANSPORT_RAIL)) {
Darkvater@2916: 					SB(_m[tile].m4, 4, 4, 0);
tron@4077: 				} else {
Darkvater@2916: 					CLRBIT(_m[tile].m3, 6);
tron@4077: 				}
Darkvater@2916: 			}
Darkvater@2916: 
Darkvater@2916: 			// Clear PBS reservation on crossing
Darkvater@2916: 			if (IsTileType(tile, MP_STREET) && IsLevelCrossing(tile))
Darkvater@2916: 				CLRBIT(_m[tile].m5, 0);
Darkvater@2916: 
Darkvater@2916: 			// Clear PBS reservation on station
Darkvater@2929: 			if (IsTileType(tile, MP_STATION))
Darkvater@2916: 				CLRBIT(_m[tile].m3, 6);
Darkvater@2916: 		} END_TILE_LOOP(tile, MapSizeX(), MapSizeY(), 0);
Darkvater@2916: 	}
Darkvater@2916: 
Darkvater@3121: 	if (CheckSavegameVersion(22))  UpdatePatches();
Darkvater@3121: 
celestar@3431: 	if (CheckSavegameVersion(25)) {
celestar@3431: 		Vehicle *v;
celestar@3431: 		FOR_ALL_VEHICLES(v) {
celestar@3431: 			if (v->type == VEH_Road) {
celestar@3431: 				v->vehstatus &= ~0x40;
celestar@3431: 				v->u.road.slot = NULL;
celestar@3431: 				v->u.road.slot_age = 0;
celestar@3431: 			}
celestar@3431: 		}
celestar@3431: 	}
celestar@3431: 
celestar@3580: 	if (CheckSavegameVersion(26)) {
celestar@3580: 		Station *st;
celestar@3580: 		FOR_ALL_STATIONS(st) {
celestar@3580: 			st->last_vehicle_type = VEH_Invalid;
celestar@3580: 		}
celestar@3580: 	}
celestar@3580: 
KUDr@3900: 	YapfNotifyTrackLayoutChange(INVALID_TILE, INVALID_TRACK);
KUDr@3900: 
peter1138@4603: 	if (CheckSavegameVersion(34)) FOR_ALL_PLAYERS(p) ResetPlayerLivery(p);
peter1138@4603: 
tron@2639: 	FOR_ALL_PLAYERS(p) p->avail_railtypes = GetPlayerRailtypes(p->index);
celestar@2147: 
peter1138@3765: 	if (!CheckSavegameVersion(27)) AfterLoadStations();
peter1138@3765: 
bjarni@4574: 	{
bjarni@4574: 		/* Set up the engine count for all players */
bjarni@4574: 		Player *players[MAX_PLAYERS];
bjarni@4574: 		int i;
bjarni@4574: 		const Vehicle *v;
bjarni@4574: 
bjarni@4574: 		for (i = 0; i < MAX_PLAYERS; i++) players[i] = GetPlayer(i);
bjarni@4574: 
bjarni@4574: 		FOR_ALL_VEHICLES(v) {
bjarni@4574: 			if (!IsEngineCountable(v)) continue;
bjarni@4574: 			players[v->owner]->num_engines[v->engine_type]++;
bjarni@4574: 		}
bjarni@4574: 	}
bjarni@4574: 
rubidium@4326: 	/* Time starts at 0 instead of 1920.
rubidium@4326: 	 * Account for this in older games by adding an offset */
rubidium@4326: 	if (CheckSavegameVersion(31)) {
rubidium@4326: 		Station *st;
rubidium@4326: 		Waypoint *wp;
rubidium@4326: 		Engine *e;
rubidium@4326: 		Player *player;
rubidium@4326: 		Industry *i;
rubidium@4326: 		Vehicle *v;
rubidium@4326: 
rubidium@4326: 		_date += DAYS_TILL_ORIGINAL_BASE_YEAR;
truelight@4383: 		_cur_year += ORIGINAL_BASE_YEAR;
rubidium@4326: 
rubidium@4326: 		FOR_ALL_STATIONS(st)    st->build_date += DAYS_TILL_ORIGINAL_BASE_YEAR;
rubidium@4326: 		FOR_ALL_WAYPOINTS(wp)   wp->build_date += DAYS_TILL_ORIGINAL_BASE_YEAR;
rubidium@4326: 		FOR_ALL_ENGINES(e)      e->intro_date  += DAYS_TILL_ORIGINAL_BASE_YEAR;
rubidium@4326: 		FOR_ALL_PLAYERS(player) player->inaugurated_year += ORIGINAL_BASE_YEAR;
rubidium@4326: 		FOR_ALL_INDUSTRIES(i)   i->last_prod_year        += ORIGINAL_BASE_YEAR;
rubidium@4326: 
rubidium@4326: 		FOR_ALL_VEHICLES(v) {
rubidium@4326: 			v->date_of_last_service += DAYS_TILL_ORIGINAL_BASE_YEAR;
rubidium@4326: 			v->build_year += ORIGINAL_BASE_YEAR;
rubidium@4326: 		}
rubidium@4326: 	}
rubidium@4326: 
truelight@4328: 	/* From 32 on we save the industry who made the farmland.
truelight@4328: 	 *  To give this prettyness to old savegames, we remove all farmfields and
truelight@4328: 	 *  plant new ones. */
truelight@4328: 	if (CheckSavegameVersion(32)) {
truelight@4328: 		Industry *i;
truelight@4328: 
truelight@4328: 		BEGIN_TILE_LOOP(tile_cur, MapSizeX(), MapSizeY(), 0) {
truelight@4328: 			if (IsTileType(tile_cur, MP_CLEAR) && IsClearGround(tile_cur, CLEAR_FIELDS)) {
truelight@4328: 				MakeClear(tile_cur, CLEAR_GRASS, 3);
truelight@4328: 			}
truelight@4328: 		} END_TILE_LOOP(tile_cur, MapSizeX(), MapSizeY(), 0)
truelight@4328: 
truelight@4328: 		FOR_ALL_INDUSTRIES(i) {
truelight@4328: 			uint j;
truelight@4328: 
truelight@4328: 			if (i->type == IT_FARM || i->type == IT_FARM_2) {
truelight@4328: 				for (j = 0; j != 50; j++) PlantRandomFarmField(i);
truelight@4328: 			}
truelight@4328: 		}
truelight@4328: 	}
truelight@4328: 
bjarni@4712: 	/* Setting no refit flags to all orders in savegames from before refit in orders were added */
bjarni@4712: 	if (CheckSavegameVersion(36)) {
bjarni@4712: 		Order *order;
bjarni@4712: 		Vehicle *v;
bjarni@4712: 
bjarni@4712: 		FOR_ALL_ORDERS(order) {
bjarni@4712: 			order->refit_cargo   = CT_NO_REFIT;
bjarni@4712: 			order->refit_subtype = CT_NO_REFIT;
bjarni@4712: 		}
bjarni@4712: 
bjarni@4712: 		FOR_ALL_VEHICLES(v) {
bjarni@4712: 			v->current_order.refit_cargo   = CT_NO_REFIT;
bjarni@4712: 			v->current_order.refit_subtype = CT_NO_REFIT;
bjarni@4712: 		}
bjarni@4712: 	}
bjarni@4712: 
peter1138@5108: 	if (CheckSavegameVersion(37)) {
peter1138@5108: 		ConvertNameArray();
peter1138@5108: 	}
peter1138@5108: 
Darkvater@5314: 	/* from version 38 we have optional elrails, since we cannot know the
Darkvater@5314: 	 * preference of a user, let elrails enabled; it can be disabled manually */
KUDr@5116: 	if (CheckSavegameVersion(38)) {
Darkvater@5314: 		_patches.disable_elrails = false; // enable elrails
Darkvater@5314: 		/* do the same as when elrails were enabled/disabled manually just now */
Darkvater@5314: 		SettingsDisableElrail(_patches.disable_elrails);
KUDr@5116: 	}
KUDr@5116: 
truelight@0: 	return true;
truelight@0: }
Darkvater@5352: 
Darkvater@5352: /** Reload all NewGRF files during a running game. This is a cut-down
Darkvater@5352:  * version of AfterLoadGame().
Darkvater@5352:  * XXX - We need to reset the vehicle position hash because with a non-empty
Darkvater@5352:  * hash AfterLoadVehicles() will loop infinitely. We need AfterLoadVehicles()
Darkvater@5352:  * to recalculate vehicle data as some NewGRF vehicle sets could have been
Darkvater@5352:  * removed or added and changed statistics */
Darkvater@5352: void ReloadNewGRFData(void)
Darkvater@5352: {
Darkvater@5352: 	/* reload grf data */
Darkvater@5352: 	GfxLoadSprites();
Darkvater@5352: 	LoadStringWidthTable();
Darkvater@5352: 	/* reload vehicles */
Darkvater@5352: 	ResetVehiclePosHash();
Darkvater@5352: 	AfterLoadVehicles();
Darkvater@5352: 	/* update station and waypoint graphics */
Darkvater@5352: 	AfterLoadWaypoints();
Darkvater@5352: 	AfterLoadStations();
Darkvater@5352: 	/* redraw the whole screen */
Darkvater@5352: 	MarkWholeScreenDirty();
Darkvater@5352: }