view rogue5/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 f502bf60e6e4
children
line wrap: on
line source

/*
 * Various input/output functions
 *
 * @(#)io.c	4.32 (Berkeley) 02/05/99
 */

#include <stdarg.h>
#include <curses.h>
#include <ctype.h>
#include <string.h>
#include "rogue.h"

/*
 * msg:
 *	Display a message at the top of the screen.
 */
#define MAXMSG	(NUMCOLS - sizeof "--More--")

static char msgbuf[2*MAXMSG+1];
static int newpos = 0;

/* VARARGS1 */
int
msg(const char *fmt, ...)
{
    va_list args;

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

/*
 * addmsg:
 *	Add things to the current message
 */
/* VARARGS1 */
void
addmsg(const char *fmt, ...)
{
    va_list args;

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

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

    if (save_msg)
	strcpy(huh, msgbuf);
    if (mpos)
    {
	look(FALSE);
	mvaddstr(0, mpos, "--More--");
	refresh();
	if (!msg_esc)
	    wait_for(stdscr, ' ');
	else
	{
	    while ((ch = readchar()) != ' ')
		if (ch == ESCAPE)
		{
		    msgbuf[0] = '\0';
		    mpos = 0;
		    newpos = 0;
		    msgbuf[0] = '\0';
		    return ESCAPE;
		}
	}
    }
    /*
     * All messages should start with uppercase, except ones that
     * start with a pack addressing character
     */
    if (islower((int)msgbuf[0]) && !lower_msg && msgbuf[1] != ')')
	msgbuf[0] = (char) toupper(msgbuf[0]);
    mvaddstr(0, 0, msgbuf);
    clrtoeol();
    mpos = newpos;
    newpos = 0;
    msgbuf[0] = '\0';
    refresh();
    return ~ESCAPE;
}

/*
 * doadd:
 *	Perform an add onto the message buffer
 */
void
doadd(const char *fmt, va_list args)
{
    static char buf[MAXSTR];

    /*
     * Do the printf into buf
     */
    vsprintf(buf, fmt, args);
    if (strlen(buf) + newpos >= MAXMSG)
        endmsg(); 
    strcat(msgbuf, buf);
    newpos = (int) strlen(msgbuf);
}

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

/*
 * readchar:
 *	Reads and returns a character, checking for gross input errors
 */

int
readchar(void)
{
    int ch;

    ch = md_readchar(stdscr);

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

    return(ch);
}

int
wreadchar(WINDOW *win)
{
    int ch;

    ch = md_readchar(win);

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

    return(ch);
}


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

    /*
     * If nothing has changed since the last status, don't
     * bother.
     */
    temp = (cur_armor != NULL ? cur_armor->o_arm : pstats.s_arm);
    if (s_hp == pstats.s_hpt && s_exp == pstats.s_exp && s_pur == purse
	&& s_arm == temp && s_str == pstats.s_str && s_lvl == level
	&& s_hungry == hungry_state
	&& !stat_msg
	)
	    return;

    s_arm = temp;

    getyx(stdscr, oy, ox);
    if (s_hp != max_hp)
    {
	temp = max_hp;
	s_hp = max_hp;
	for (hpwidth = 0; temp; hpwidth++)
	    temp /= 10;
    }

    /*
     * Save current status
     */
    s_lvl = level;
    s_pur = purse;
    s_hp = pstats.s_hpt;
    s_str = pstats.s_str;
    s_exp = pstats.s_exp; 
    s_hungry = hungry_state;

    if (stat_msg)
    {
        move(0, 0);
        msg("Level: %d  Gold: %-5d  Hp: %*d(%*d)  Str: %2d(%d)  Arm: %-2d  Exp: %d/%d  %s",
        level, purse, hpwidth, pstats.s_hpt, hpwidth, max_hp, pstats.s_str,
        max_stats.s_str, 10 - s_arm, pstats.s_lvl, pstats.s_exp,
        state_name[hungry_state]);
    }
    else
    {
	move(STATLINE, 0);
                
        printw("Level: %d  Gold: %-5d  Hp: %*d(%*d)  Str: %2d(%d)  Arm: %-2d  Exp: %d/%d  %s",
	    level, purse, hpwidth, pstats.s_hpt, hpwidth, max_hp, pstats.s_str,
	    max_stats.s_str, 10 - s_arm, pstats.s_lvl, pstats.s_exp,
	    state_name[hungry_state]);
    }

    clrtoeol();
    move(oy, ox);
}

/*
 * wait_for
 *	Sit around until the guy types the right key
 */
void
wait_for(WINDOW *win, int ch)
{
    int c;

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

/*
 * show_win:
 *	Function used to display a window and wait before returning
 */
void
show_win(const char *message)
{
    WINDOW *win;

    win = hw;
    wmove(win, 0, 0);
    waddstr(win, message);
    touchwin(win);
    wrefresh(win);
    wait_for(win, ' ');
    clearok(curscr, TRUE);
    touchwin(stdscr);
}