view rogue4/io.c @ 296:000b1c5b8d63

UltraRogue: fix inventory collision after save and restore. Inventory letters are based on "identifiers" stored in objects' o_ident field. Identifiers are allocated by get_ident(), which keeps a list of objects that have them, to avoid giving the same identifier to multiple objects. The list is not stored in the savefile, so after restore, get_ident() was not aware of existing identifiers. This resulted in picked-up objects having the same inventory letters as objects restored from the file. The restore code now adds all objects with identifiers to the list.
author John "Elwin" Edwards
date Mon, 15 Jan 2018 20:20:35 -0500
parents 1b73a8641b37
children
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>

void doadd(char *fmt, va_list ap);

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

void
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
 */

void
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--)
 */

void
endmsg(void)
{
    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
 */

void
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
 */
bool
step_ok(char 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().
 */
int
readcharw(WINDOW *win)
{
    int ch;

    ch = md_readchar(win);

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

    return(ch);
}

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

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

/*
 * status:
 *	Display the important stats line.  Keep the cursor where it was.
 */
void
status(void)
{
    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
 */



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

void
w_wait_for(WINDOW *win, 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
 */
void
show_win(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);
}