view rogue4/main.c @ 223:0e99eade579c

Generate text documentation from the troff source files. This is done by make, in the 'docs' target, which is now part of the normal build process. Unfortunately, not all the games include troff sources. Getting decent HTML output from groff is still a difficult process which will not be attempted at this time. There are a few bugs in the 'install' and 'uninstall' rules. Not to mention that the documentation is sometimes inaccurate.
author John "Elwin" Edwards
date Sun, 21 Feb 2016 20:47:12 -0500
parents ee250e3646fd
children 1b73a8641b37
line wrap: on
line source

/*
 * #     #
 * #    #   #    #  #   ##  #    #   # 
 *		         #
 *
 * @(#)main.c	4.26 (Berkeley) 2/4/82
 *
 * Rogue: Exploring the Dungeons of Doom
 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 *
 */

#include <stdlib.h>
#include <curses.h>
#include <signal.h>
#include <limits.h>
#include <string.h>
#include "rogue.h"

/*
 * main:
 *	The main program, of course
 */
main(argc, argv, envp)
char **argv;
char **envp;
{
    register char *env;
    int lowtime;

    md_init();

#ifndef DUMP
#ifdef SIGQUIT
    signal(SIGQUIT, exit);
#endif
    signal(SIGILL, exit);
#ifdef SIGTRAP
    signal(SIGTRAP, exit);
#endif
#ifdef SIGIOT
    signal(SIGIOT, exit);
#endif
#ifdef SIGEMT
    signal(SIGEMT, exit);
#endif
    signal(SIGFPE, exit);
#ifdef SIGBUS
    signal(SIGBUS, exit);
#endif
    signal(SIGSEGV, exit);
#ifdef SIGSYS
    signal(SIGSYS, exit);
#endif
#endif

#ifdef WIZARD
    /*
     * Check to see if he is a wizard
     */
    if (argc >= 2 && argv[1][0] == '\0')
	if (strcmp(PASSWD, xcrypt(md_getpass("Wizard's password: "), "mT")) == 0)
	{
	    wizard = TRUE;
	    player.t_flags |= SEEMONST;
	    argv++;
	    argc--;
	}
#endif

#ifdef SAVEDIR
    if (argc >= 3 && !strcmp(argv[1], "-n"))
    {
        strncpy(whoami, argv[2], MAXSTR - 1);
        whoami[MAXSTR - 1] = '\0'; /* insurance */
        use_savedir = TRUE;
        /* look for savefile at SAVEDIR/UID-playername.r4sav */
        if (snprintf(file_name, 256, "%s/%d-%s.r4sav", SAVEDIR, 
            md_getuid(), whoami) >= 256)
        {
            /* Name is too long- this shouldn't happen */
            strcpy(file_name, "rogue4.save");
            use_savedir = FALSE;
        }
    }
#endif

    /*
     * get home and options from environment
     */
    strncpy(home, md_gethomedir(), PATH_MAX);
    if (!use_savedir)
    {
        strcpy(file_name, home);
        strcat(file_name, "/rogue4.save");
    }

    if ((env = getenv("ROGUEOPTS")) != NULL)
	parse_opts(env);
    if (!use_savedir && (env == NULL || whoami[0] == '\0'))
	strucpy(whoami, md_getusername(md_getuid()), strlen(md_getusername(md_getuid())));
    if (env == NULL || fruit[0] == '\0')
	strcpy(fruit, "slime-mold");

    /*
     * check for print-score option
     */
    open_log(); /* do first, open_score might drop needed permissions */
    open_score();
    if (argc == 2 && strcmp(argv[1], "-s") == 0)
    {
	noscore = TRUE;
	score(0, -1);
	exit(0);
    }
    init_check();			/* check for legal startup */

    if (use_savedir)
    {
        /* Try to restore from file_name which we just set up. */
        if (!restore(file_name, envp))
            exit(1);
        /* If restore() returns true, the system savefile doesn't exist.
           So we'll start a new game. */
    }
    else if (argc == 2)
    {
	if (!restore(argv[1], envp))	/* Note: restore will never return */
	{
		endwin();
	    exit(1);
	}
    }

    if (!use_savedir)
        md_normaluser();

    lowtime = (int) time(NULL);

#ifdef WIZARD
    noscore = wizard;
#endif
    if (getenv("SEED") != NULL)
    {
	dnum = atoi(getenv("SEED"));
	noscore = TRUE;
    }
    else
	dnum = lowtime + getpid();
#ifdef WIZARD
    if (wizard)
	printf("Hello %s, welcome to dungeon #%d", whoami, dnum);
    else
#endif
	printf("Hello %s, just a moment while I dig the dungeon...\n\n",whoami);
    fflush(stdout);
    seed = dnum;

    init_player();			/* Set up initial player stats */
    init_things();			/* Set up probabilities of things */
    init_names();			/* Set up names of scrolls */
    init_colors();			/* Set up colors of potions */
    init_stones();			/* Set up stone settings of rings */
    init_materials();			/* Set up materials of wands */

    initscr();				/* Start up cursor package */

    if (COLS < 70) 
    { 
	printf("\n\nSorry, but your terminal window has too few columns.\n");
        printf("Your terminal has %d columns, needs 70.\n",COLS); 
        endwin(); 
        exit(1); 
	} 

    if (LINES < 22) 
    { 
        printf("\n\nSorry, but your terminal window has too few lines.\n"); 
        printf("Your terminal has %d lines, needs 22.\n",LINES); 
        endwin(); 
        exit(1); 
    } 
 
    if ((whoami == NULL) || (*whoami == '\0') || (strcmp(whoami,"dosuser")==0))
    {
        echo();
        mvaddstr(23,2,"Rogue's Name? ");
        wgetnstr(stdscr,whoami,MAXSTR);
        noecho();
    }

    if ((whoami == NULL) || (*whoami == '\0'))
        strcpy(whoami,"Rodney");

    setup();

    /*
     * Set up windows
     */
    hw = newwin(LINES, COLS, 0, 0);
    keypad(stdscr,1);
    new_level();			/* Draw current level */
    /*
     * Start up daemons and fuses
     */
    start_daemon(doctor, 0, AFTER);
    fuse(swander, 0, WANDERTIME, AFTER);
    start_daemon(stomach, 0, AFTER);
    start_daemon(runners, 0, AFTER);
    playit();
}

/*
 * endit:
 *	Exit the program abnormally.
 */
void
endit(int a)
{
    fatal("Ok, if you want to exit that badly, I'll have to allow it\n");
}

/*
 * fatal:
 *	Exit the program, printing a message.
 */
fatal(s)
char *s;
{
    clear();
    move(LINES-2, 0);
    printw("%s", s);
    refresh();
    endwin();
    (void) exit(0);
}

/*
 * rnd:
 *	Pick a very random number.
 */
rnd(range)
register int range;
{
    return range == 0 ? 0 : abs((int) RN) % range;
}

/*
 * roll:
 *	Roll a number of dice
 */
roll(number, sides)
register int number, sides;
{
    register int dtotal = 0;

    while (number--)
	dtotal += rnd(sides)+1;
    return dtotal;
}

/*
 * tstp:
 *	Handle stop and start signals
 */
void
tstp(int a)
{
    register int y, x;
    register int oy, ox;

    getyx(curscr, oy, ox);
    mvcur(0, COLS - 1, LINES - 1, 0);
    endwin();
    clearok(curscr, TRUE);
    fflush(stdout);
#ifdef SIGTSTP
    signal(SIGTSTP, SIG_DFL);
    kill(0, SIGTSTP);
    signal(SIGTSTP, tstp);
#endif
    crmode();
    nonl();
    noecho();
    clearok(curscr, TRUE);
    wrefresh(curscr);
    getyx(curscr, y, x);
    mvcur(y, x, oy, ox);
    fflush(stdout);
    curscr->_cury = oy;
    curscr->_curx = ox;
}

/*
 * playit:
 *	The main loop of the program.  Loop until the game is over,
 *	refreshing things and looking at the proper times.
 */
playit()
{
    register char *opts;

    /*
     * set up defaults for slow terminals
     */

    if (baudrate() < 1200)
    {
        terse = TRUE;
        jump = TRUE;
    }

    /*
     * parse environment declaration of options
     */
    if ((opts = getenv("ROGUEOPTS")) != NULL)
	parse_opts(opts);


    oldpos = hero;
    oldrp = roomin(&hero);
    while (playing)
	command();			/* Command execution */
    endit(0);
}

/*
 * quit:
 *	Have player make certain, then exit.
 */
void
quit(int a)
{
    register int oy, ox;

    /*
     * Reset the signal in case we got here via an interrupt
     */

    if (signal(SIGINT, quit) != quit)
	mpos = 0;
    getyx(curscr, oy, ox);
    msg("really quit?");
    if (readchar() == 'y')
    {
	signal(SIGINT, leave);
	clear();
	mvprintw(LINES - 2, 0, "You quit with %d gold pieces", purse);
	move(LINES - 1, 0);
	refresh();
	writelog(purse, 1, 0);
	score(purse, 1);
	printf("[Press return to exit]\n");
	fflush(NULL);
	getchar();
	exit(0);
    }
    else
    {
	move(0, 0);
	clrtoeol();
	status();
	move(oy, ox);
	refresh();
	mpos = 0;
	count = 0;
    }
}

/*
 * leave:
 *	Leave quickly, but curteously
 */
void
leave(int sig)
{
/*
    if (!_endwin)
    {*/
	mvcur(0, COLS - 1, LINES - 1, 0);
	endwin();
    /* } */
    putchar('\n');
    exit(0);
}

/*
 * shell:
 *	Let him escape for a while
 */
shell()
{
    /*
     * Set the terminal back to original mode
     */
    move(LINES-1, 0);
    refresh();
    endwin();
    putchar('\n');
    putchar('\n');
    in_shell = TRUE;
    after = FALSE;

    md_shellescape();

    noecho();
    nonl();
    crmode();
    in_shell = FALSE;
    clearok(stdscr, TRUE);
    touchwin(stdscr);
}