view rogue3/rings.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 527e2150eaf0
children
line wrap: on
line source

/*
 * routines dealing specifically with rings
 *
 * @(#)rings.c	3.17 (Berkeley) 6/15/81
 *
 * 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 <stdlib.h>
#include <string.h>
#include "rogue.h"

void
ring_on()
{
    struct object *obj;
    struct linked_list *item;
    int ring;
    str_t save_max;
    char buf[80];

    item = get_item("put on", RING);
    /*
     * Make certain that it is somethings that we want to wear
     */
    if (item == NULL)
	return;
    obj = (struct object *) ldata(item);
    if (obj->o_type != RING)
    {
	if (!terse)
	    msg("It would be difficult to wrap that around a finger");
	else
	    msg("Not a ring");
	return;
    }

    /*
     * find out which hand to put it on
     */
    if (is_current(obj))
	return;

    if (cur_ring[LEFT] == NULL && cur_ring[RIGHT] == NULL)
    {
	if ((ring = gethand()) < 0)
	    return;
    }
    else if (cur_ring[LEFT] == NULL)
	ring = LEFT;
    else if (cur_ring[RIGHT] == NULL)
	ring = RIGHT;
    else
    {
	if (!terse)
	    msg("You already have a ring on each hand");
	else
	    msg("Wearing two");
	return;
    }
    cur_ring[ring] = obj;

    /*
     * Calculate the effect it has on the poor guy.
     */
    switch (obj->o_which)
    {
	case R_ADDSTR:
	    save_max = max_stats.s_str;
	    chg_str(obj->o_ac);
	    max_stats.s_str = save_max;
	    break;
	case R_SEEINVIS:
	    player.t_flags |= CANSEE;
	    light(&hero);
	    mvwaddch(cw, hero.y, hero.x, PLAYER);
	    break;
	case R_AGGR:
	    aggravate();
	    break;
    }
    status();

    if (obj->o_which >= MAXRINGS)
        return;

    if (r_know[obj->o_which] && r_guess[obj->o_which])
    {
	free(r_guess[obj->o_which]);
	r_guess[obj->o_which] = NULL;
    }
    else if (!r_know[obj->o_which] && askme && r_guess[obj->o_which] == NULL)
    {
	mpos = 0;
	msg(terse ? "Call it: " : "What do you want to call it? ");
	if (get_str(buf, cw) == NORM)
	{
	    r_guess[obj->o_which] = malloc(strlen(buf) + 1);
	    if (r_guess[obj->o_which] != NULL)
		strcpy(r_guess[obj->o_which], buf);
	}
	msg("");
    }
}

void
ring_off()
{
    int ring;
    struct object *obj;

    if (cur_ring[LEFT] == NULL && cur_ring[RIGHT] == NULL)
    {
	if (terse)
	    msg("No rings");
	else
	    msg("You aren't wearing any rings");
	return;
    }
    else if (cur_ring[LEFT] == NULL)
	ring = RIGHT;
    else if (cur_ring[RIGHT] == NULL)
	ring = LEFT;
    else
	if ((ring = gethand()) < 0)
	    return;
    mpos = 0;
    obj = cur_ring[ring];
    if (obj == NULL)
    {
	msg("Not wearing such a ring");
	return;
    }
    if (dropcheck(obj))
	msg("Was wearing %s", inv_name(obj, TRUE));
}

int
gethand()
{
    int c;

    for (;;)
    {
	if (terse)
	    msg("Left or Right ring? ");
	else
	    msg("Left hand or right hand? ");
	if ((c = readchar(cw)) == 'l' || c == 'L')
	    return LEFT;
	else if (c == 'r' || c == 'R')
	    return RIGHT;
	else if (c == ESCAPE)
	    return -1;
	mpos = 0;
	if (terse)
	    msg("L or R");
	else
	    msg("Please type L or R");
    }
}

/*
 * how much food does this ring use up?
 */
int
ring_eat(int hand)
{
    if (cur_ring[hand] == NULL)
	return 0;
    switch (cur_ring[hand]->o_which)
    {
	case R_REGEN:
	    return 2;
	case R_SUSTSTR:
	    return 1;
	case R_SEARCH:
	    return (rnd(100) < 33);
	case R_DIGEST:
	    return -(rnd(100) < 50);
	default:
	    return 0;
    }
}

/*
 * print ring bonuses
 */
char *
ring_num(struct object *obj)
{
    static char buf[5];

    if (!(obj->o_flags & ISKNOW))
	return "";
    switch (obj->o_which)
    {
	case R_PROTECT:
	case R_ADDSTR:
	case R_ADDDAM:
	case R_ADDHIT:
	    buf[0] = ' ';
	    strcpy(&buf[1], num(obj->o_ac, 0));
	otherwise:
	    return "";
    }
    return buf;
}