Пример #1
0
//
// D_DoomMain
//
void D_DoomMain (void)
{
    int             p;
    char            file[256];
    char            demolumpname[9];

    M_FindResponseFile ();

    // Undocumented "search for IWADs" parameter used by the setup
    // tool.

    if (M_CheckParm("-findiwads") > 0)
    {
        D_FindInstalledIWADs();
    }

    // print banner

    PrintBanner(PACKAGE_STRING);

    DEH_printf("Z_Init: Init zone memory allocation daemon. \n");
    Z_Init ();

#ifdef FEATURE_MULTIPLAYER
    //!
    // @category net
    //
    // Start a dedicated server, routing packets but not participating
    // in the game itself.
    //

    if (M_CheckParm("-dedicated") > 0)
    {
        printf("Dedicated server mode.\n");
        NET_DedicatedServer();

        // Never returns
    }

    //!
    // @category net
    //
    // Query the Internet master server for a global list of active
    // servers.
    //

    if (M_CheckParm("-search"))
    {
        printf("\nSearching for servers on Internet ...\n");
        p = NET_MasterQuery(NET_QueryPrintCallback, NULL);
        printf("\n%i server(s) found.\n", p);
        exit(0);
    }

    //!
    // @arg <address>
    // @category net
    //
    // Query the status of the server running on the given IP
    // address.
    //

    p = M_CheckParmWithArgs("-query", 1);

    if (p)
    {
        NET_QueryAddress(myargv[p+1]);
        exit(0);
    }

    //!
    // @category net
    //
    // Search the local LAN for running servers.
    //

    if (M_CheckParm("-localsearch"))
    {
        printf("\nSearching for servers on local LAN ...\n");
        p = NET_LANQuery(NET_QueryPrintCallback, NULL);
        printf("\n%i server(s) found.\n", p);
        exit(0);
    }

#endif
            
#ifdef FEATURE_DEHACKED
    printf("DEH_Init: Init Dehacked support.\n");
    DEH_Init();
#endif

    iwadfile = D_FindIWAD();
// *** PID BEGIN ***
    psdoom1wad = D_FindWADByName("psdoom1.wad");
    psdoom2wad = D_FindWADByName("psdoom2.wad");
// *** PID END ***

    // None found?

    if (iwadfile == NULL)
    {
        I_Error("Game mode indeterminate.  No IWAD file was found.  Try\n"
                "specifying one with the '-iwad' command line parameter.\n");
    }

    modifiedgame = false;

    //!
    // @vanilla
    //
    // Disable monsters.
    //
	
    nomonsters = M_CheckParm ("-nomonsters");

// This keeps a 'no monsters' that is persistant across new games
// and level warps.
    if ( (nomonstersperiod = M_CheckParm("-nomonsters.") ) ) {
       nomonsters = true;
    }

// This makes items respawn as in -altdeath (ie. no dropped items,
// no invis, no invun)
    respawnitems = M_CheckParm("-respawnitems");

    //!
    // @vanilla
    //
    // Monsters respawn after being killed.
    //

    respawnparm = M_CheckParm ("-respawn");

    //!
    // @vanilla
    //
    // Monsters move faster.
    //

    fastparm = M_CheckParm ("-fast");

    //! 
    // @vanilla
    //
    // Developer mode.  F1 saves a screenshot in the current working
    // directory.
    //

    devparm = M_CheckParm ("-devparm");

    //!
    // @category net
    // @vanilla
    //
    // Start a deathmatch game.
    //

    if (M_CheckParm ("-deathmatch"))
	deathmatch = 1;

    //!
    // @category net
    // @vanilla
    //
    // Start a deathmatch 2.0 game.  Weapons do not stay in place and
    // all items respawn after 30 seconds.
    //

    if (M_CheckParm ("-altdeath"))
	deathmatch = 2;

    if (devparm)
	DEH_printf(D_DEVSTR);
    
    // find which dir to use for config files

    M_SetConfigDir();
    
    //!
    // @arg <x>
    // @vanilla
    //
    // Turbo mode.  The player's speed is multiplied by x%.  If unspecified,
    // x defaults to 200.  Values are rounded up to 10 and down to 400.
    //

    if ( (p=M_CheckParm ("-turbo")) )
    {
	int     scale = 200;
	extern int forwardmove[2];
	extern int sidemove[2];
	
	if (p<myargc-1)
	    scale = atoi (myargv[p+1]);
	if (scale < 10)
	    scale = 10;
	if (scale > 400)
	    scale = 400;
        DEH_printf("turbo scale: %i%%\n", scale);
	forwardmove[0] = forwardmove[0]*scale/100;
	forwardmove[1] = forwardmove[1]*scale/100;
	sidemove[0] = sidemove[0]*scale/100;
	sidemove[1] = sidemove[1]*scale/100;
    }
    
    // init subsystems
    DEH_printf("V_Init: allocate screens.\n");
    V_Init ();

    DEH_printf("M_LoadDefaults: Load system defaults.\n");
    M_ApplyPlatformDefaults();
    M_LoadDefaults ();              // load before initing other systems

    DEH_printf("W_Init: Init WADfiles.\n");
    D_AddFile(iwadfile);
   
// *** PID BEGIN ***
// If the command-line flag to suppress auto-loading of custom
// ps management levels is *not* there, load the appropriate level.
    p = M_CheckParm ("-nopslev");
    if (p)
    {
// Add psdoom1.wad if this is registered (Doom 1) or retail (Ultimite Doom).
// If we loaded it, set the flag to true so we can place the monsters in the
// correct positions.
		if ( gamemode == registered || gamemode == retail ){
			D_AddFile(iwadfile);
			ps_level_loaded = true;
		}
// Add psdoom2.wad if this is commercial (Doom 2) and not an add-on pack.
// If we loaded it, set the flag to true so we can place the monsters in the
// correct positions.
		if ( gamemode == commercial && gamemission == doom2 ) {
			D_AddFile(iwadfile);
			ps_level_loaded = true;
		}
    }
// *** PID END ***
 

#ifdef FEATURE_WAD_MERGE

    // Merged PWADs are loaded first, because they are supposed to be 
    // modified IWADs.

    //!
    // @arg <files>
    // @category mod
    //
    // Simulates the behavior of deutex's -merge option, merging a PWAD
    // into the main IWAD.  Multiple files may be specified.
    //

    p = M_CheckParmWithArgs("-merge", 1);

    if (p > 0)
    {
        for (p = p + 1; p<myargc && myargv[p][0] != '-'; ++p)
        {
            char *filename;

            filename = D_TryFindWADByName(myargv[p]);

            printf(" merging %s\n", filename);
            W_MergeFile(filename);
        }
    }

    // NWT-style merging:

    // NWT's -merge option:

    //!
    // @arg <files>
    // @category mod
    //
    // Simulates the behavior of NWT's -merge option.  Multiple files
    // may be specified.

    p = M_CheckParmWithArgs("-nwtmerge", 1);

    if (p > 0)
    {
        for (p = p + 1; p<myargc && myargv[p][0] != '-'; ++p)
        {
            char *filename;

            filename = D_TryFindWADByName(myargv[p]);

            printf(" performing NWT-style merge of %s\n", filename);
            W_NWTDashMerge(filename);
        }
    }
    
    // Add flats

    //!
    // @arg <files>
    // @category mod
    //
    // Simulates the behavior of NWT's -af option, merging flats into
    // the main IWAD directory.  Multiple files may be specified.
    //

    p = M_CheckParmWithArgs("-af", 1);

    if (p > 0)
    {
        for (p = p + 1; p<myargc && myargv[p][0] != '-'; ++p)
        {
            char *filename;

            filename = D_TryFindWADByName(myargv[p]);

            printf(" merging flats from %s\n", filename);
            W_NWTMergeFile(filename, W_NWT_MERGE_FLATS);
        }
    }

    //!
    // @arg <files>
    // @category mod
    //
    // Simulates the behavior of NWT's -as option, merging sprites
    // into the main IWAD directory.  Multiple files may be specified.
    //

    p = M_CheckParmWithArgs("-as", 1);

    if (p > 0)
    {
        for (p = p + 1; p<myargc && myargv[p][0] != '-'; ++p)
        {
            char *filename;

            filename = D_TryFindWADByName(myargv[p]);

            printf(" merging sprites from %s\n", filename);
            W_NWTMergeFile(filename, W_NWT_MERGE_SPRITES);
        }
    }

    //!
    // @arg <files>
    // @category mod
    //
    // Equivalent to "-af <files> -as <files>".
    //

    p = M_CheckParmWithArgs("-aa", 1);

    if (p > 0)
    {
        for (p = p + 1; p<myargc && myargv[p][0] != '-'; ++p)
        {
            char *filename;

            filename = D_TryFindWADByName(myargv[p]);

            printf(" merging sprites and flats from %s\n", filename);
            W_NWTMergeFile(filename, W_NWT_MERGE_SPRITES | W_NWT_MERGE_FLATS);
        }
    }

#endif

    //!
    // @arg <files>
    // @vanilla
    //
    // Load the specified PWAD files.
    //

    p = M_CheckParmWithArgs("-file", 1);
    if (p)
    {
	// the parms after p are wadfile/lump names,
	// until end of parms or another - preceded parm
	modifiedgame = true;            // homebrew levels
	while (++p != myargc && myargv[p][0] != '-')
        {
            char *filename;

            filename = D_TryFindWADByName(myargv[p]);

	    D_AddFile(filename);
        }
    }

    // Debug:
//    W_PrintDirectory();

    //!
    // @arg <demo>
    // @category demo
    // @vanilla
    //
    // Play back the demo named demo.lmp.
    //

    p = M_CheckParmWithArgs ("-playdemo", 1);

    if (!p)
    {
        //!
        // @arg <demo>
        // @category demo
        // @vanilla
        //
        // Play back the demo named demo.lmp, determining the framerate
        // of the screen.
        //
	p = M_CheckParmWithArgs("-timedemo", 1);

    }

    if (p)
    {
        if (!strcasecmp(myargv[p+1] + strlen(myargv[p+1]) - 4, ".lmp"))
        {
            strcpy(file, myargv[p + 1]);
        }
        else
        {
	    sprintf (file,"%s.lmp", myargv[p+1]);
        }

	if (D_AddFile (file))
        {
            strncpy(demolumpname, lumpinfo[numlumps - 1].name, 8);
            demolumpname[8] = '\0';

            printf("Playing demo %s.\n", file);
        }
        else
        {
            // If file failed to load, still continue trying to play
            // the demo in the same way as Vanilla Doom.  This makes
            // tricks like "-playdemo demo1" possible.

            strncpy(demolumpname, myargv[p + 1], 8);
            demolumpname[8] = '\0';
        }

    }

    // Generate the WAD hash table.  Speed things up a bit.

    W_GenerateHashTable();
    
    D_IdentifyVersion();
    InitGameVersion();
    LoadChexDeh();
    LoadHacxDeh();
    D_SetGameDescription();
    D_SetSaveGameDir();

    // Check for -file in shareware
    if (modifiedgame)
    {
	// These are the lumps that will be checked in IWAD,
	// if any one is not present, execution will be aborted.
	char name[23][8]=
	{
	    "e2m1","e2m2","e2m3","e2m4","e2m5","e2m6","e2m7","e2m8","e2m9",
	    "e3m1","e3m3","e3m3","e3m4","e3m5","e3m6","e3m7","e3m8","e3m9",
	    "dphoof","bfgga0","heada1","cybra1","spida1d1"
	};
	int i;
	
	if ( gamemode == shareware)
	    I_Error(DEH_String("\nYou cannot -file with the shareware "
			       "version. Register!"));

	// Check for fake IWAD with right name,
	// but w/o all the lumps of the registered version. 
	if (gamemode == registered)
	    for (i = 0;i < 23; i++)
		if (W_CheckNumForName(name[i])<0)
		    I_Error(DEH_String("\nThis is not the registered version."));
    }
    
    // get skill / episode / map from parms
    startskill = sk_medium;
    startepisode = 1;
    startmap = 1;
    autostart = false;

    //!
    // @arg <skill>
    // @vanilla
    //
    // Set the game skill, 1-5 (1: easiest, 5: hardest).  A skill of
    // 0 disables all monsters.
    //

    p = M_CheckParmWithArgs("-skill", 1);

    if (p)
    {
	startskill = myargv[p+1][0]-'1';
	autostart = true;
    }

    //!
    // @arg <n>
    // @vanilla
    //
    // Start playing on episode n (1-4)
    //

    p = M_CheckParmWithArgs("-episode", 1);

    if (p)
    {
	startepisode = myargv[p+1][0]-'0';
	startmap = 1;
	autostart = true;
    }
	
    timelimit = 0;

    //! 
    // @arg <n>
    // @category net
    // @vanilla
    //
    // For multiplayer games: exit each level after n minutes.
    //

    p = M_CheckParmWithArgs("-timer", 1);

    if (p)
    {
	timelimit = atoi(myargv[p+1]);
    }

    //!
    // @category net
    // @vanilla
    //
    // Austin Virtual Gaming: end levels after 20 minutes.
    //

    p = M_CheckParm ("-avg");

    if (p)
    {
	timelimit = 20;
    }

    //!
    // @arg [<x> <y> | <xy>]
    // @vanilla
    //
    // Start a game immediately, warping to ExMy (Doom 1) or MAPxy
    // (Doom 2)
    //

    p = M_CheckParmWithArgs("-warp", 1);

    if (p)
    {
        if (gamemode == commercial)
            startmap = atoi (myargv[p+1]);
        else
        {
            startepisode = myargv[p+1][0]-'0';

            if (p + 2 < myargc)
            {
                startmap = myargv[p+2][0]-'0';
            }
            else
            {
                startmap = 1;
            }
        }
        autostart = true;
    }

    // Undocumented:
    // Invoked by setup to test the controls.

    p = M_CheckParm("-testcontrols");

    if (p > 0)
    {
        startepisode = 1;
        startmap = 1;
        autostart = true;
        testcontrols = true;
    }

    // Check for load game parameter
    // We do this here and save the slot number, so that the network code
    // can override it or send the load slot to other players.

    //!
    // @arg <s>
    // @vanilla
    //
    // Load the game in slot s.
    //

    p = M_CheckParmWithArgs("-loadgame", 1);
    
    if (p)
    {
        startloadgame = atoi(myargv[p+1]);
    }
    else
    {
        // Not loading a game
        startloadgame = -1;
    }

    //!
    // @category video
    //
    // Disable vertical mouse movement.
    //

    if (M_CheckParm("-novert"))
        novert = true;

    //!
    // @category video
    //
    // Enable vertical mouse movement.
    //

    if (M_CheckParm("-nonovert"))
        novert = false;

    if (W_CheckNumForName("SS_START") >= 0
     || W_CheckNumForName("FF_END") >= 0)
    {
        printf ("===========================================================================\n");
        printf(" WARNING: The loaded WAD file contains modified sprites or\n"
               " floor textures.  You may want to use the '-merge' command\n"
               " line option instead of '-file'.\n");
    }
    
    printf ("===========================================================================\n");

    PrintBanner(gamedescription);

    
    printf (
	    "===========================================================================\n"
	    " " PACKAGE_NAME " is free software, covered by the GNU General Public\n"
            " License.  There is NO warranty; not even for MERCHANTABILITY or FITNESS\n"
            " FOR A PARTICULAR PURPOSE. You are welcome to change and distribute\n"
            " copies under certain conditions. See the source for more information.\n"

	    "===========================================================================\n"
	);

    PrintDehackedBanners();

    DEH_printf("M_Init: Init miscellaneous info.\n");
    M_Init ();

    DEH_printf("R_Init: Init DOOM refresh daemon - ");
    R_Init ();

    DEH_printf("\nP_Init: Init Playloop state.\n");
    P_Init ();

    DEH_printf("I_Init: Setting up machine state.\n");
    I_Init ();

#ifdef FEATURE_MULTIPLAYER
    printf ("NET_Init: Init network subsystem.\n");
    NET_Init ();
#endif

    DEH_printf("S_Init: Setting up sound.\n");
    S_Init (sfxVolume * 8, musicVolume * 8);

    DEH_printf("D_CheckNetGame: Checking network game status.\n");
    D_CheckNetGame ();

    PrintGameVersion();

    DEH_printf("HU_Init: Setting up heads up display.\n");
    HU_Init ();

    DEH_printf("ST_Init: Init status bar.\n");
    ST_Init ();

    // If Doom II without a MAP01 lump, this is a store demo.  
    // Moved this here so that MAP01 isn't constantly looked up
    // in the main loop.

    if (gamemode == commercial && W_CheckNumForName("map01") < 0)
        storedemo = true;

    //!
    // @arg <x>
    // @category demo
    // @vanilla
    //
    // Record a demo named x.lmp.
    //

    p = M_CheckParmWithArgs("-record", 1);

    if (p)
    {
	G_RecordDemo (myargv[p+1]);
	autostart = true;
    }

    p = M_CheckParmWithArgs("-playdemo", 1);
    if (p)
    {
	singledemo = true;              // quit after one demo
	G_DeferedPlayDemo (demolumpname);
	D_DoomLoop ();  // never returns
    }
	
    p = M_CheckParmWithArgs("-timedemo", 1);
    if (p)
    {
	G_TimeDemo (demolumpname);
	D_DoomLoop ();  // never returns
    }
	
    if (startloadgame >= 0)
    {
        strcpy(file, P_SaveGameFile(startloadgame));
	G_LoadGame (file);
    }
	
    if (gameaction != ga_loadgame )
    {
	if (autostart || netgame)
	    G_InitNew (startskill, startepisode, startmap);
	else
	    D_StartTitle ();                // start up intro loop
    }

    D_DoomLoop ();  // never returns
}
Пример #2
0
//
// D_DoomMain
//
void D_DoomMain(void)
{
	int p;
	char file[256];
	char demolumpname[9];

	M_FindResponseFile();

	// print banner

	PrintBanner(PACKAGE_STRING);

	I_Print("Z_Init: Init zone memory allocation daemon. \n");
	Z_Init();

	iwadfile = D_FindIWAD();

	// None found?

	if (iwadfile == NULL) {
		I_Error
		    ("Game mode indeterminate.  No IWAD file was found.  Try\n"
		     "specifying one with the '-iwad' command line parameter.\n");
	}

	modifiedgame = false;

	//!
	// @vanilla
	//
	// Disable monsters.
	//

	nomonsters = M_CheckParm("-nomonsters");

	//!
	// @vanilla
	//
	// Monsters respawn after being killed.
	//

	respawnparm = M_CheckParm("-respawn");

	//!
	// @vanilla
	//
	// Monsters move faster.
	//

	fastparm = M_CheckParm("-fast");

	//! 
	// @vanilla
	//
	// Developer mode.  F1 saves a screenshot in the current working
	// directory.
	//

	devparm = M_CheckParm("-devparm");

	//!
	// @category net
	// @vanilla
	//
	// Start a deathmatch game.
	//

	if (M_CheckParm("-deathmatch"))
		deathmatch = 1;

	//!
	// @category net
	// @vanilla
	//
	// Start a deathmatch 2.0 game.  Weapons do not stay in place and
	// all items respawn after 30 seconds.
	//

	if (M_CheckParm("-altdeath"))
		deathmatch = 2;

	if (devparm)
		I_Print(D_DEVSTR);

	//!
	// @arg <x>
	// @vanilla
	//
	// Turbo mode.  The player's speed is multiplied by x%.  If unspecified,
	// x defaults to 200.  Values are rounded up to 10 and down to 400.
	//

	if ((p = M_CheckParm("-turbo"))) {
		int scale = 200;
		extern int forwardmove[2];
		extern int sidemove[2];

		if (p < myargc - 1)
			scale = atoi(myargv[p + 1]);
		if (scale < 10)
			scale = 10;
		if (scale > 400)
			scale = 400;
		/*I_Print ("turbo scale: %i%%\n",scale); */
		forwardmove[0] = forwardmove[0] * scale / 100;
		forwardmove[1] = forwardmove[1] * scale / 100;
		sidemove[0] = sidemove[0] * scale / 100;
		sidemove[1] = sidemove[1] * scale / 100;
	}
	// init subsystems
	I_Print("V_Init: allocate screens.\n");
	V_Init();

	I_Print("M_LoadDefaults: Load system defaults.\n");
	M_LoadDefaults();	// load before initing other systems

	I_Print("W_Init: Init WADfiles.\n");
	D_AddFile(iwadfile);

#ifdef FEATURE_WAD_MERGE

	// Merged PWADs are loaded first, because they are supposed to be 
	// modified IWADs.

	//!
	// @arg <files>
	// @category mod
	//
	// Simulates the behavior of deutex's -merge option, merging a PWAD
	// into the main IWAD.  Multiple files may be specified.
	//

	p = M_CheckParm("-merge");

	if (p > 0) {
		for (p = p + 1; p < myargc && myargv[p][0] != '-'; ++p) {
			char *filename;

			filename = D_TryFindWADByName(myargv[p]);

			/*I_Print(" merging %s\n", filename); */
			W_MergeFile(filename);
		}
	}
	// NWT-style merging:

	// NWT's -merge option:

	//!
	// @arg <files>
	// @category mod
	//
	// Simulates the behavior of NWT's -merge option.  Multiple files
	// may be specified.

	p = M_CheckParm("-nwtmerge");

	if (p > 0) {
		for (p = p + 1; p < myargc && myargv[p][0] != '-'; ++p) {
			char *filename;

			filename = D_TryFindWADByName(myargv[p]);

			/*I_Print(" performing NWT-style merge of %s\n", filename); */
			W_NWTDashMerge(filename);
		}
	}
	// Add flats

	//!
	// @arg <files>
	// @category mod
	//
	// Simulates the behavior of NWT's -af option, merging flats into
	// the main IWAD directory.  Multiple files may be specified.
	//

	p = M_CheckParm("-af");

	if (p > 0) {
		for (p = p + 1; p < myargc && myargv[p][0] != '-'; ++p) {
			char *filename;

			filename = D_TryFindWADByName(myargv[p]);

			/*I_Print(" merging flats from %s\n", filename); */
			W_NWTMergeFile(filename, W_NWT_MERGE_FLATS);
		}
	}
	//!
	// @arg <files>
	// @category mod
	//
	// Simulates the behavior of NWT's -as option, merging sprites
	// into the main IWAD directory.  Multiple files may be specified.
	//

	p = M_CheckParm("-as");

	if (p > 0) {
		for (p = p + 1; p < myargc && myargv[p][0] != '-'; ++p) {
			char *filename;

			filename = D_TryFindWADByName(myargv[p]);

			/*I_Print(" merging sprites from %s\n", filename); */
			W_NWTMergeFile(filename, W_NWT_MERGE_SPRITES);
		}
	}
	//!
	// @arg <files>
	// @category mod
	//
	// Equivalent to "-af <files> -as <files>".
	//

	p = M_CheckParm("-aa");

	if (p > 0) {
		for (p = p + 1; p < myargc && myargv[p][0] != '-'; ++p) {
			char *filename;

			filename = D_TryFindWADByName(myargv[p]);

			/*I_Print(" merging sprites and flats from %s\n", filename); */
			W_NWTMergeFile(filename,
				       W_NWT_MERGE_SPRITES | W_NWT_MERGE_FLATS);
		}
	}
#endif

	//!
	// @arg <files>
	// @vanilla
	//
	// Load the specified PWAD files.
	//

	p = M_CheckParm("-file");
	if (p) {
		// the parms after p are wadfile/lump names,
		// until end of parms or another - preceded parm
		modifiedgame = true;	// homebrew levels
		while (++p != myargc && myargv[p][0] != '-') {
			char *filename;

			filename = D_TryFindWADByName(myargv[p]);

			D_AddFile(filename);
		}
	}
	// add any files specified on the command line with -file wadfile
	// to the wad list
	//
	// convenience hack to allow -wart e m to add a wad file
	// prepend a tilde to the filename so wadfile will be reloadable
	/*p = M_CheckParm ("-wart");
	   if (p)
	   {
	   myargv[p][4] = 'p';     // big hack, change to -warp

	   // Map name handling.
	   switch (gamemode )
	   {
	   case shareware:
	   case retail:
	   case registered:
	   sprintf (file,"~"DEVMAPS"E%cM%c.wad",
	   myargv[p+1][0], myargv[p+2][0]);
	   I_Print("Warping to Episode %s, Map %s.\n",
	   myargv[p+1],myargv[p+2]);
	   break;

	   case commercial:
	   default:
	   p = atoi (myargv[p+1]);
	   if (p<10)
	   format_number(file,"~"DEVMAPS"cdata/map0%i.wad", p, 10);
	   else
	   format_number(file,"~"DEVMAPS"cdata/map%i.wad", p, 10);
	   break;
	   }
	   D_AddFile (file);
	   } */

	//!
	// @arg <demo>
	// @category demo
	// @vanilla
	//
	// Play back the demo named demo.lmp.
	//

	p = M_CheckParm("-playdemo");

	if (!p) {
		//!
		// @arg <demo>
		// @category demo
		// @vanilla
		//
		// Play back the demo named demo.lmp, determining the framerate
		// of the screen.
		//
		p = M_CheckParm("-timedemo");

	}

	if (p && p < myargc - 1) {
		strcpy(file, myargv[p + 1]);

		if (D_AddFile(file)) {
			strncpy(demolumpname, lumpinfo[numlumps - 1].name, 8);
			demolumpname[8] = '\0';

			/*I_Print("Playing demo %s.\n", file); */
		} else {
			// If file failed to load, still continue trying to play
			// the demo in the same way as Vanilla Doom.  This makes
			// tricks like "-playdemo demo1" possible.

			strncpy(demolumpname, myargv[p + 1], 8);
			demolumpname[8] = '\0';
		}

	}
	// Generate the WAD hash table.  Speed things up a bit.

	I_Print("W_Init: Generate Hash Table.\n");
	W_GenerateHashTable();

	D_IdentifyVersion();
	InitGameVersion();
	D_SetGameDescription();

	// Check for -file in shareware
	if (modifiedgame) {
		// These are the lumps that will be checked in IWAD,
		// if any one is not present, execution will be aborted.
		char name[23][8] = {
			"e2m1", "e2m2", "e2m3", "e2m4", "e2m5", "e2m6", "e2m7",
			"e2m8", "e2m9",
			"e3m1", "e3m3", "e3m3", "e3m4", "e3m5", "e3m6", "e3m7",
			"e3m8", "e3m9",
			"dphoof", "bfgga0", "heada1", "cybra1", "spida1d1"
		};
		int i;

		if (gamemode == shareware)
			I_Error("\nYou cannot -file with the shareware "
				"version. Register!");

		// Check for fake IWAD with right name,
		// but w/o all the lumps of the registered version. 
		if (gamemode == registered)
			for (i = 0; i < 23; i++)
				if (W_CheckNumForName(name[i]) < 0)
					I_Error
					    ("\nThis is not the registered version.");
	}
	// get skill / episode / map from parms
	startskill = sk_medium;
	startepisode = 1;
	startmap = 1;
	autostart = false;

	//!
	// @arg <skill>
	// @vanilla
	//
	// Set the game skill, 1-5 (1: easiest, 5: hardest).  A skill of
	// 0 disables all monsters.
	//

	p = M_CheckParm("-skill");

	if (p && p < myargc - 1) {
		startskill = myargv[p + 1][0] - '1';
		autostart = true;
	}
	//!
	// @arg <n>
	// @vanilla
	//
	// Start playing on episode n (1-4)
	//

	p = M_CheckParm("-episode");

	if (p && p < myargc - 1) {
		startepisode = myargv[p + 1][0] - '0';
		startmap = 1;
		autostart = true;
	}

	timelimit = 0;

	//! 
	// @arg <n>
	// @category net
	// @vanilla
	//
	// For multiplayer games: exit each level after n minutes.
	//

	p = M_CheckParm("-timer");

	if (p && p < myargc - 1 && deathmatch) {
		timelimit = atoi(myargv[p + 1]);
		/*I_Print("timer: %i\n", timelimit); */
	}
	//!
	// @category net
	// @vanilla
	//
	// Austin Virtual Gaming: end levels after 20 minutes.
	//

	p = M_CheckParm("-avg");

	if (p && p < myargc - 1 && deathmatch) {
		I_Print("Austin Virtual Gaming: Levels will end "
			"after 20 minutes\n");
		timelimit = 20;
	}
	//!
	// @arg [<x> <y> | <xy>]
	// @vanilla
	//
	// Start a game immediately, warping to ExMy (Doom 1) or MAPxy
	// (Doom 2)
	//

	p = M_CheckParm("-warp");

	if (p && p < myargc - 1) {
		if (gamemode == commercial)
			startmap = atoi(myargv[p + 1]);
		else {
			startepisode = myargv[p + 1][0] - '0';

			if (p + 2 < myargc) {
				startmap = myargv[p + 2][0] - '0';
			} else {
				startmap = 1;
			}
		}
		autostart = true;
	}
	// Check for load game parameter
	// We do this here and save the slot number, so that the network code
	// can override it or send the load slot to other players.

	//!
	// @arg <s>
	// @vanilla
	//
	// Load the game in slot s.
	//

	p = M_CheckParm("-loadgame");

	if (p && p < myargc - 1) {
		startloadgame = atoi(myargv[p + 1]);
	} else {
		// Not loading a game
		startloadgame = -1;
	}

	//!
	// @category video
	//
	// Disable vertical mouse movement.
	//

	if (M_CheckParm("-novert"))
		novert = true;

	//!
	// @category video
	//
	// Enable vertical mouse movement.
	//

	if (M_CheckParm("-nonovert"))
		novert = false;

	if (W_CheckNumForName("SS_START") >= 0
	    || W_CheckNumForName("FF_END") >= 0) {
		I_Print
		    ("===========================================================================\n");
		I_Print
		    (" WARNING: The loaded WAD file contains modified sprites or\n"
		     " floor textures.  You may want to use the '-merge' command\n"
		     " line option instead of '-file'.\n");
	}

	I_Print
	    ("===========================================================================\n");

	PrintBanner(gamedescription);

	I_Print
	    ("===========================================================================\n"
	     " " PACKAGE_NAME
	     " is free software, covered by the GNU General Public\n"
	     " License.  There is NO warranty; not even for MERCHANTABILITY or FITNESS\n"
	     " FOR A PARTICULAR PURPOSE. You are welcome to change and distribute\n"
	     " copies under certain conditions. See the source for more information.\n"
	     "===========================================================================\n");

	I_Print("M_Init: Init miscellaneous info.\n");
	M_Init();

	I_Print("R_Init: Init DOOM refresh daemon - ");
	R_Init();

	I_Print("\nP_Init: Init Playloop state.\n");
	P_Init();

	I_Print("\nG_Init: Init game state.\n");
	G_Init();

	I_Print("S_Init: Setting up sound.\n");
	S_Init(sfxVolume * 8, musicVolume * 8);

	PrintGameVersion();

	I_Print("HU_Init: Setting up heads up display.\n");
	HU_Init();

	I_Print("ST_Init: Init status bar.\n");
	ST_Init();

	// If Doom II without a MAP01 lump, this is a store demo.  
	// Moved this here so that MAP01 isn't constantly looked up
	// in the main loop.

	if (gamemode == commercial && W_CheckNumForName("map01") < 0)
		storedemo = true;

	I_Print("\nI_InitGraphics: Init graphics.\n");
	I_InitGraphics();

	//!
	// @arg <x>
	// @category demo
	// @vanilla
	//
	// Record a demo named x.lmp.
	//

	p = M_CheckParm("-record");

	if (p && p < myargc - 1) {
		G_RecordDemo(myargv[p + 1]);
		autostart = true;
	}

	p = M_CheckParm("-playdemo");
	if (p && p < myargc - 1) {
		singledemo = true;	// quit after one demo
		G_DeferedPlayDemo(demolumpname);
		D_DoomLoop();	// never returns
	}

	if (startloadgame >= 0) {
		strcpy(file, P_SaveGameFile(startloadgame));
		G_LoadGame(file);
	}

	if (gameaction != ga_loadgame) {
		if (autostart || netgame)
			G_InitNew(startskill, startepisode, startmap);
		else
			D_StartTitle();	// start up intro loop
	}

	I_Print("D_DoomLoop: GOGOGOG!\n");
	D_DoomLoop();		// never returns
}