view rogue3/wizard.c @ 111:7f8f43943b1f

Fix some terribly depressing corruption during restore. In rogue5/state.c, rs_read_daemons() zeroes out the argument and delay if the daemon slot is empty. Unfortunately that code ended up on the wrong side of the brace that closes the for loop, so instead of running after each daemon, it got run once after the loop exited, when the index was of course out of bounds. This tended to manifest, when compiled with -O2, by overwriting hw and setting it to NULL. When inventory() next ran, hw would be passed to wgetch(), which returns ERR when it gets a NULL argument. This made md_readchar() think something was wrong and autosave the game. Upon investigation, rogue3 was found to commit the same mistake. rogue4 and srogue don't zero the data. arogue5 already does it properly. Someday I am going to run all this through Valgrind. Someday when I am a kinder person who will not be driven to invoke hordes of trolls and centaurs upon the original authors.
author John "Elwin" Edwards
date Wed, 08 Jan 2014 16:44:16 -0500
parents 527e2150eaf0
children e7aab31362af
line wrap: on
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/*
 * Special wizard commands (some of which are also non-wizard commands
 * under strange circumstances)
 *
 * @(#)wizard.c	3.8 (Berkeley) 6/3/81
 *
 * Rogue: Exploring the Dungeons of Doom
 * Copyright (C) 1980, 1981 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 <stdlib.h>
#include "machdep.h"
#include "rogue.h"

/*
 * whatis:
 *	What a certin object is
 */

void
whatis()
{
    struct object *obj;
    struct linked_list *item;

    if ((item = get_item("identify", 0)) == NULL)
	return;
    obj = (struct object *) ldata(item);
    switch (obj->o_type)
    {
        case SCROLL:
	    s_know[obj->o_which] = TRUE;
	    if (s_guess[obj->o_which])
	    {
		free(s_guess[obj->o_which]);
		s_guess[obj->o_which] = NULL;
	    }
        when POTION:
	    p_know[obj->o_which] = TRUE;
	    if (p_guess[obj->o_which])
	    {
		free(p_guess[obj->o_which]);
		p_guess[obj->o_which] = NULL;
	    }
	when STICK:
	    ws_know[obj->o_which] = TRUE;
	    obj->o_flags |= ISKNOW;
	    if (ws_guess[obj->o_which])
	    {
		free(ws_guess[obj->o_which]);
		ws_guess[obj->o_which] = NULL;
	    }
        when WEAPON:
        case ARMOR:
	    obj->o_flags |= ISKNOW;
        when RING:
	    r_know[obj->o_which] = TRUE;
	    obj->o_flags |= ISKNOW;
	    if (r_guess[obj->o_which])
	    {
		free(r_guess[obj->o_which]);
		r_guess[obj->o_which] = NULL;
	    }
    }
    msg(inv_name(obj, FALSE));
}

/*
 * create_obj:
 *	Wizard command for getting anything he wants
 */

void
create_obj()
{
    struct linked_list *item;
    struct object *obj;
    int bless;
    int ch;

    item = new_item(sizeof *obj);
    obj = (struct object *) ldata(item);
    msg("Type of item: ");
    obj->o_type = readchar(cw);
    mpos = 0;
    msg("Which %c do you want? (0-f)", obj->o_type);
    obj->o_which = (isdigit((ch = readchar(cw))) ? ch - '0' : ch - 'a' + 10);
    obj->o_group = 0;
    obj->o_count = 1;
    mpos = 0;
    if (obj->o_type == WEAPON || obj->o_type == ARMOR)
    {
	msg("Blessing? (+,-,n)");
	bless = readchar(cw);
	mpos = 0;
	if (obj->o_type == WEAPON)
	{
	    init_weapon(obj, obj->o_which);
	    if (bless == '-') {
		obj->o_hplus -= rnd(3)+1;
		obj->o_flags |= ISCURSED;
	    }
	    if (bless == '+')
		obj->o_hplus += rnd(3)+1;
	}
	else
	{
	    obj->o_ac = a_class[obj->o_which];
	    if (bless == '-') {
		obj->o_ac += rnd(3)+1;
		obj->o_flags |= ISCURSED;
	    }
	    if (bless == '+')
		obj->o_ac -= rnd(3)+1;
	}
    }
    else if (obj->o_type == RING)
	switch (obj->o_which)
	{
	    case R_PROTECT:
	    case R_ADDSTR:
	    case R_ADDHIT:
	    case R_ADDDAM:
		msg("Blessing? (+,-,n)");
		bless = readchar(cw);
		mpos = 0;
		if (bless == '-')
		    obj->o_flags |= ISCURSED;
		obj->o_ac = (bless == '-' ? -1 : rnd(2) + 1);
	}
    else if (obj->o_type == STICK)
	fix_stick(obj);
    add_pack(item, FALSE);
}

/*
 * telport:
 *	Bamf the hero someplace else
 */

int
teleport()
{
    int rm;
    coord c;

    c = hero;
    mvwaddch(cw, hero.y, hero.x, mvwinch(stdscr, hero.y, hero.x));
    do
    {
	rm = rnd_room();
	rnd_pos(&rooms[rm], &hero);
    } until(winat(hero.y, hero.x) == FLOOR);
    light(&c);
    light(&hero);
    mvwaddch(cw, hero.y, hero.x, PLAYER);
    /*
     * turn off ISHELD in case teleportation was done while fighting
     * a Fungi
     */
    if (on(player, ISHELD)) {
	player.t_flags &= ~ISHELD;
	fung_hit = 0;
	strcpy(monsters['F'-'A'].m_stats.s_dmg, "000d0");
    }
    count = 0;
    running = FALSE;
    flush_type();		/* flush typeahead */
    return rm;
}

/*
 * passwd:
 *	see if user knows password
 */

int
passwd()
{
    char *sp, c;
    char buf[80];

    msg("Wizard's Password:");
    mpos = 0;
    sp = buf;
    while ((c = readchar(cw)) != '\n' && c != '\r' && c != '\033')
	if (c == md_killchar())
	    sp = buf;
	else if (c == md_erasechar() && sp > buf)
	    sp--;
	else
	    *sp++ = c;
    if (sp == buf)
	return FALSE;
    *sp = '\0';
    return (strcmp(PASSWD, crypt(buf, "mT")) == 0);
}