view rogue4/io.c @ 162:600873555ec0

Don't swap signal handlers in md_shellescape(). md_shellescape() sets SIGINT and SIGQUIT to be ignored, storing the previous handlers, and restores them after the shell exits. But it mixed up the two handlers. Since the signals were usually handled by the same function, this fix doesn't have much effect, but anything that makes signal code less confusing is a good thing.
author John "Elwin" Edwards
date Mon, 08 Jun 2015 10:01:25 -0400
parents 9535a08ddc39
children 1b73a8641b37
line wrap: on
line source

/*
 * Various input/output functions
 *
 * @(#)io.c	4.13 (Berkeley) 2/25/82
 *
 * 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 <curses.h>
#include <ctype.h>
#include <string.h>
#include "rogue.h"
#include <stdarg.h>

/*
 * msg:
 *	Display a message at the top of the screen.
 */
static char msgbuf[BUFSIZ];
static int newpos = 0;

msg(char *fmt, ...)
{
    va_list ap;
    /*
     * if the string is "", just clear the line
     */
    if (*fmt == '\0')
    {
	move(0, 0);
	clrtoeol();
	mpos = 0;
	return;
    }
    /*
     * otherwise add to the message and flush it out
     */
    va_start(ap,fmt);
    doadd(fmt, ap);
    va_end(ap);
    endmsg();
}

/*
 * addmsg:
 *	Add things to the current message
 */

addmsg(char *fmt, ...)
{
    va_list ap;

    va_start(ap, fmt);
    doadd(fmt, ap);
    va_end(ap);
}

/*
 * endmsg:
 *	Display a new msg (giving him a chance to see the previous one
 *	if it is up there with the --More--)
 */

endmsg()
{
    if (save_msg)
    {
	strncpy(huh, msgbuf, 80);
	huh[79] = 0;
    }

    if (mpos)
    {
	look(FALSE);
	move(0, mpos);
	addstr("--More--");
	refresh();
	wait_for(' ');
    }
    /*
     * All messages should start with uppercase, except ones that
     * start with a pack addressing character
     */
    if (islower(msgbuf[0]) && msgbuf[1] != ')')
	msgbuf[0] = toupper(msgbuf[0]);
    mvaddstr(0, 0, msgbuf);
    clrtoeol();
    mpos = newpos;
    newpos = 0;
    refresh();
}

/*
 * doadd:
 *	Perform an add onto the message buffer
 */

doadd(char *fmt, va_list ap)
{
    vsprintf(&msgbuf[newpos], fmt, ap);
    newpos = strlen(msgbuf);
}

/*
 * step_ok:
 *	Returns true if it is ok to step on ch
 */
step_ok(ch)
{
    switch (ch)
    {
	case ' ':
	case '|':
	case '-':
	    return FALSE;
	default:
	    return (!isalpha(ch));
    }
}

/*
 * readchar:
 *	Flushes stdout so that screen is up to date and then returns
 *	getchar().
 */
readcharw(win)
WINDOW *win;
{
    int ch;

    ch = md_readchar(win);

    if ((ch == 3) || (ch == 0))
    {
	quit(0);
	return(27);
    }

    return(ch);
}

readchar()
{
    return( readcharw(stdscr) );
}

char *
unctrol(ch)
char ch;
{
    return( (char *) unctrl(ch) );
}

/*
 * status:
 *	Display the important stats line.  Keep the cursor where it was.
 */
status()
{
    register int oy, ox, temp;
    static int hpwidth = 0, s_hungry;
    static int s_lvl, s_pur = -1, s_hp, s_ac = 0;
    static str_t s_str;
    static long s_exp = 0;
    static char *state_name[] =
    {
	"", "Hungry", "Weak", "Faint"
    };

    /*
     * If nothing has changed since the last status, don't
     * bother.
     */
    if (s_hp == pstats.s_hpt && s_exp == pstats.s_exp && s_pur == purse
	&& s_ac == (cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm)
	&& s_str == pstats.s_str && s_lvl == level && s_hungry == hungry_state)
	    return;
	
    getyx(stdscr, oy, ox);
    if (s_hp != max_hp)
    {
	temp = s_hp = max_hp;
	for (hpwidth = 0; temp; hpwidth++)
	    temp /= 10;
    }
    move(LINES - 1, 0);
    printw("Level: %d  Gold: %-5d  Hp: %*d(%*d)  Str: %2d(%d)  Ac: %-2d  Exp: %d/%ld  %s",
	    level, purse, hpwidth, pstats.s_hpt, hpwidth, max_hp, pstats.s_str,
	    max_stats.s_str,
	    cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm, pstats.s_lvl,
	    pstats.s_exp, state_name[hungry_state]);

    clrtoeol();
    /*
     * Save old status
     */
    s_lvl = level;
    s_pur = purse;
    s_hp = pstats.s_hpt;
    s_str = pstats.s_str;
    s_exp = pstats.s_exp; 
    s_ac = (cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm);
    s_hungry = hungry_state;
    move(oy, ox);
}

/*
 * wait_for
 *	Sit around until the guy types the right key
 */



wait_for(ch)
register char ch;
{
    w_wait_for(stdscr, ch);
}

w_wait_for(win,ch)
WINDOW *win;
register char ch;
{
    register char c;

    if (ch == '\n')
        while ((c = readcharw(win)) != '\n' && c != '\r')
	    continue;
    else
        while (readcharw(win) != ch)
	    continue;
}

/*
 * show_win:
 *	Function used to display a window and wait before returning
 */
show_win(scr, message)
register WINDOW *scr;
char *message;
{
    mvwaddstr(scr, 0, 0, message);
    touchwin(scr);
    wmove(scr, hero.y, hero.x);
    wrefresh(scr);
    w_wait_for(scr,' ');
    clearok(curscr, TRUE);
    touchwin(stdscr);
}