示例#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
}
示例#2
0
//
// D_DoomMainSetup
//
// CPhipps - the old contents of D_DoomMain, but moved out of the main
//  line of execution so its stack space can be freed
static void D_DoomMainSetup(void)
{
    int     p;
    char    file[256];
    int     temp;
    int     choseniwad;

    SDL_Init(0);

    M_FindResponseFile();

    iwadfile = D_FindIWAD();

    modifiedgame = false;

    nomonsters = M_CheckParm("-nomonsters");
    respawnparm = M_CheckParm("-respawn");
    fastparm = M_CheckParm("-fast");
    devparm = M_CheckParm("-devparm");
    if (M_CheckParm("-altdeath"))
        deathmatch = 2;
    else if (M_CheckParm("-deathmatch"))
        deathmatch = 1;

    M_SetConfigDir();

    // turbo option
    p = M_CheckParm("-turbo");
    if (p)
    {
        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;
        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
    V_Init();

    // Load configuration files before initialising other subsystems.
    M_LoadDefaults();

    if (!M_FileExists("doomretro.wad"))
        if (!M_FileExists("doomretro.wad.temp"))
            I_Error("Can't find doomretro.wad.");

    if (iwadfile)
    {
        if (D_AddFile(iwadfile))
            if (runcount < RUNCOUNT_MAX)
                runcount++;
    }
    else 
    {
        if (!runcount)
            D_FirstUse();

        rename("doomretro.wad", "doomretro.wad.temp");

        do
        {
            choseniwad = D_ChooseIWAD();

            if (choseniwad == -1)
            {
                rename("doomretro.wad.temp", "doomretro.wad");
                I_Quit(false);
            }
            else if (!choseniwad)
                PlaySound((LPCTSTR)SND_ALIAS_SYSTEMHAND, NULL, SND_ALIAS_ID | SND_ASYNC);

        } while (!choseniwad);

        rename("doomretro.wad.temp", "doomretro.wad");

        if (runcount < RUNCOUNT_MAX)
            runcount++;
    }
    M_SaveDefaults();

    if (!W_MergeFile("doomretro.wad"))
        if (!W_MergeFile("doomretro.wad.temp"))
            I_Error("Can't find doomretro.wad.");

    if (W_CheckNumForName("BLD2A0") < 0 ||
        W_CheckNumForName("MEDBA0") < 0 ||
        W_CheckNumForName("STBAR2") < 0)
        I_Error("Wrong version of doomretro.wad.");

    p = M_CheckParmsWithArgs("-file", "-pwad", 1);
    if (p > 0)
    {
        for (p = p + 1; p < myargc && myargv[p][0] != '-'; ++p)
        {
            char *filename = uppercase(D_TryFindWADByName(myargv[p]));

            if (W_MergeFile(filename))
            {
                modifiedgame = true;
                if (D_CheckFilename(filename, "NERVE.WAD"))
                    nerve = true;
            }
        }
    }

    if (FREEDOOM && W_CheckNumForName("FREEDM") < 0 && !modifiedgame)
        I_Error("FREEDOOM requires a BOOM-compatible source port, and is therefore"
                "unable to be opened by DOOM RETRO.");

    DMENUPIC = (W_CheckNumForName("DMENUPIC") >= 0);
    M_DOOM = (W_CheckMultipleLumps("M_DOOM") > 1);
    M_EPISOD = (W_CheckMultipleLumps("M_EPISOD") > 1);
    M_GDHIGH = (W_CheckMultipleLumps("M_GDHIGH") > 1);
    M_GDLOW = (W_CheckMultipleLumps("M_GDLOW") > 1);
    M_LOADG = (W_CheckMultipleLumps("M_LOADG") > 1);
    M_LSCNTR = (W_CheckMultipleLumps("M_LSCNTR") > 1);
    M_MSENS = (W_CheckMultipleLumps("M_MSENS") > 1);
    M_MSGOFF = (W_CheckMultipleLumps("M_MSGOFF") > 1);
    M_MSGON = (W_CheckMultipleLumps("M_MSGON") > 1);
    M_NEWG = (W_CheckMultipleLumps("M_NEWG") > 1);
    M_NMARE = (W_CheckMultipleLumps("M_NMARE") > 1);
    M_OPTTTL = (W_CheckMultipleLumps("M_OPTTTL") > 1);
    M_PAUSE = (W_CheckMultipleLumps("M_PAUSE") > 1);
    M_SAVEG = (W_CheckMultipleLumps("M_SAVEG") > 1);
    M_SKILL = (W_CheckMultipleLumps("M_SKILL") > 1);
    M_SKULL1 = (W_CheckMultipleLumps("M_SKULL1") > 1);
    M_SVOL = (W_CheckMultipleLumps("M_SVOL") > 1);
    STARMS = (W_CheckMultipleLumps("STARMS") > 2);
    STBAR = (W_CheckMultipleLumps("STBAR") > 2);
    STCFN034 = (W_CheckMultipleLumps("STCFN034") > 1);
    STCFN039 = (W_CheckMultipleLumps("STCFN039") > 1);
    STCFN121 = (W_CheckMultipleLumps("STCFN121") > 1);
    STYSNUM0 = (W_CheckMultipleLumps("STYSNUM0") > 1);
    TITLEPIC = (W_CheckNumForName("TITLEPIC") >= 0);
    WISCRT2 = (W_CheckMultipleLumps("WISCRT2") > 1);

    bfgedition = (DMENUPIC && W_CheckNumForName("M_ACPT") >= 0);

    // Generate the WAD hash table. Speed things up a bit.
    W_GenerateHashTable();

    D_IdentifyVersion();
    InitGameVersion();
    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][9] =
        {
            "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("You cannot use -FILE with the shareware version.\n"
                    "Please purchase the full version.");

        // 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("This is not the registered version.");
    }

    // get skill / episode / map from parms
    startskill = sk_medium;
    startepisode = 1;
    startmap = 1;
    autostart = false;

    p = M_CheckParmWithArgs("-skill", 1);
    if (p)
    {
        temp = myargv[p + 1][0] - '1';
        if (temp >= sk_baby && temp <= sk_nightmare)
        {
            startskill = (skill_t)temp;
            autostart = true;
        }
    }

    p = M_CheckParmWithArgs("-episode", 1);
    if (p)
    {
        temp = myargv[p + 1][0] - '0';
        if ((gamemode == shareware && temp == 1)
            || (temp >= 1
                && ((gamemode == registered && temp <= 3)
                    || (gamemode == retail && temp <= 4))))
        {
            startepisode = temp;
            startmap = 1;
            autostart = true;
        }
    }

    p = M_CheckParmWithArgs("-expansion", 1);
    if (p)
    {
        temp = myargv[p + 1][0] - '0';
        if (gamemode == commercial && temp <= (nerve ? 2 : 1))
        {
            gamemission = (temp == 1 ? doom2 : pack_nerve);
            selectedexpansion = temp - 1;
            startepisode = 1;
            startmap = 1;
            autostart = true;
        }
    }

    timelimit = 0;

    p = M_CheckParmWithArgs("-timer", 1);
    if (p)
        timelimit = atoi(myargv[p + 1]);

    p = M_CheckParm("-avg");
    if (p)
        timelimit = 20;

    p = M_CheckParmWithArgs("-warp", 1);
    if (p)
    {
        static char lumpname[6];

        if (gamemode == commercial)
        {
            if (strlen(myargv[p + 1]) == 5 &&
                toupper(myargv[p + 1][0]) == 'M' &&
                toupper(myargv[p + 1][1]) == 'A' &&
                toupper(myargv[p + 1][2]) == 'P')
                startmap = (myargv[p + 1][3] - '0') * 10 + myargv[p + 1][4] - '0';
            else
                startmap = atoi(myargv[p + 1]);

            sprintf(lumpname, "MAP%02i", startmap);
        }
        else
        {
            if (strlen(myargv[p + 1]) == 4 &&
                toupper(myargv[p + 1][0]) == 'E' &&
                toupper(myargv[p + 1][2]) == 'M')
            {
                startepisode = myargv[p + 1][1] - '0';
                startmap = myargv[p + 1][3] - '0';
            }
            else
            {
                startepisode = myargv[p + 1][0] - '0';

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

            sprintf(lumpname, "E%iM%i", startepisode, startmap);
        }

        if (W_CheckNumForName(lumpname) >= 0)
            autostart = true;
    }

    p = M_CheckParmWithArgs("-loadgame", 1);
    if (p)
        startloadgame = atoi(myargv[p + 1]);
    else
        startloadgame = -1;

    if (mouseSensitivity < MOUSESENSITIVITY_MIN || mouseSensitivity > MOUSESENSITIVITY_MAX)
        mouseSensitivity = MOUSESENSITIVITY_DEFAULT;
    if (mouseSensitivity == MOUSESENSITIVITY_MIN)
        mouseSensitivity = -5;
    gamepadSensitivity = (!mouseSensitivity ? 0.0f :
                          (2.0f + mouseSensitivity / (float)MOUSESENSITIVITY_MAX));

    if (sfxVolume < SFXVOLUME_MIN || sfxVolume > SFXVOLUME_MAX)
        sfxVolume = SFXVOLUME_DEFAULT;

    if (musicVolume < MUSICVOLUME_MIN || musicVolume > MUSICVOLUME_MAX)
        musicVolume = MUSICVOLUME_DEFAULT;

    if (screensize < SCREENSIZE_MIN || screensize > SCREENSIZE_MAX)
        screensize = SCREENSIZE_DEFAULT;
    if (widescreen && !fullscreen)
    {
        widescreen = false;
        screensize = SCREENSIZE_MAX;
    }
    if (!widescreen)
        hud = true;
    if (fullscreen && screensize == SCREENSIZE_MAX)
    {
        widescreen = true;
        screensize = SCREENSIZE_MAX - 1;
    }
    if (widescreen)
    {
        returntowidescreen = true;
        widescreen = false;
    }

    if (screenwidth && screenheight
        && (screenwidth < SCREENWIDTH || screenheight < SCREENHEIGHT * 3 / 4))
    {
        screenwidth = SCREENWIDTH;
        screenheight = SCREENWIDTH * 3 / 4;
    }

    if (windowwidth < SCREENWIDTH || windowheight < SCREENWIDTH * 3 / 4)
    {
        windowwidth = SCREENWIDTH;
        windowheight = SCREENWIDTH * 3 / 4;
    }

    if (gammalevel < GAMMALEVEL_MIN || gammalevel > GAMMALEVEL_MAX)
        gammalevel = GAMMALEVEL_DEFAULT;
    gammalevelindex = 0;
    while (gammalevelindex < GAMMALEVELS)
        if (gammalevels[gammalevelindex++] == gammalevel)
            break;
    if (gammalevelindex == GAMMALEVELS)
    {
        gammalevelindex = 0;
        while (gammalevels[gammalevelindex++] != GAMMALEVEL_DEFAULT);
    }
    gammalevelindex--;

    if (bloodsplats < BLOODSPLATS_MIN || bloodsplats > BLOODSPLATS_MAX)
        bloodsplats = BLOODSPLATS_DEFAULT;
    bloodSplatSpawner = ((bloodsplats == UNLIMITED ? P_SpawnBloodSplat : 
                         (bloodsplats ? P_SpawnBloodSplat2 : P_SpawnBloodSplat3)));

    if (pixelwidth < PIXELWIDTH_MIN || pixelwidth > PIXELWIDTH_MAX)
        pixelwidth = PIXELWIDTH_DEFAULT;
    while (SCREENWIDTH % pixelwidth)
        pixelwidth--;
    if (pixelheight < PIXELHEIGHT_MIN || pixelheight > PIXELHEIGHT_MAX)
        pixelheight = PIXELHEIGHT_DEFAULT;
    while (SCREENHEIGHT % pixelheight)
        pixelheight--;

    M_Init();

    R_Init();

    P_Init();

    I_Init();

    S_Init((int)(sfxVolume * (127.0f / 15.0f)), (int)(musicVolume * (127.0f / 15.0f)));

    D_CheckNetGame();

    HU_Init();

    ST_Init();

    AM_Init();

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

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