view arogue5/rings.c @ 306:057c5114e244

Super-Rogue: fix some out-of-range constants. Constants K_ARROW etc., for causes of death other than monsters, are in the 240-255 range. They were often passed to functions taking char, which is usually signed, making the values out of range. The function declarations have been changed to unsigned char, which is also the type used by the scoreboard code.
author John "Elwin" Edwards
date Sat, 17 Apr 2021 15:41:12 -0400
parents 56e748983fa8
children
line wrap: on
line source

/*
 * routines dealing specifically with rings
 *
 * Advanced Rogue
 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
 * All rights reserved.
 *
 * Based on "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 "rogue.h"
#include <stdlib.h>
#include <string.h>

/*
 * 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_VAMPREGEN:
	    return 3;
	case R_REGEN:
	    return 2;
	case R_HEALTH:
	case R_SUSABILITY:
	    return 1;
	case R_SEARCH:
	case R_SEEINVIS:
	    return (rnd(100) < 33);
	case R_DIGEST:
	    if (cur_ring[hand]->o_ac >= 0)
		return (-(cur_ring[hand]->o_ac)-1);
	    else
		return (-(cur_ring[hand]->o_ac));
    }
    return 0;
}

void
ring_on(struct object *obj)
{
    register int save_max;
    char buf[LINELEN];

    /*
     * 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;
	when R_ADDHIT:
	    pstats.s_dext += obj->o_ac;
	when R_ADDINTEL:
	    pstats.s_intel += obj->o_ac;
	when R_ADDWISDOM:
	    pstats.s_wisdom += obj->o_ac;
	when R_SEEINVIS:
	    turn_on(player, CANSEE);
	    msg("Your eyes begin to tingle");
	    light(&hero);
	    mvwaddch(cw, hero.y, hero.x, PLAYER);
	when R_AGGR:
	    aggravate();
	when R_WARMTH:
	    turn_on(player, NOCOLD);
	when R_FIRE:
	    turn_on(player, NOFIRE);
	when R_LIGHT: {
		if(roomin(&hero) != NULL) {
			light(&hero);
			mvwaddch(cw, hero.y, hero.x, PLAYER);
		}
	    }
	when R_SEARCH:
		start_daemon(ring_search, 0, AFTER);
	when R_TELEPORT:
		start_daemon(ring_teleport, 0, AFTER);
    }
    status(FALSE);
    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 && 
	     (obj->o_flags & ISKNOW) == 0 &&
	     r_guess[obj->o_which] == NULL) {
	msg(terse ? "Call it: " : "What do you want to call it? ");
	if (get_str(buf, msgw) == NORM)
	{
	    r_guess[obj->o_which] = new((unsigned int) strlen(buf) + 1);
	    strcpy(r_guess[obj->o_which], buf);
	}
	msg("");
    }
}

/*
 * 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:
	case R_ADDINTEL:
	case R_ADDWISDOM:
	case R_DIGEST:
	    buf[0] = ' ';
	    strcpy(&buf[1], num(obj->o_ac, 0));
	when R_AGGR:
	case R_LIGHT:
	case R_HEAVY:
	case R_TELEPORT:
	    if (obj->o_flags & ISCURSED)
		return " cursed";
	    else
		return "";
	otherwise:
	    return "";
    }
    return buf;
}

/* 
 * Return the effect of the specified ring 
 */
int
ring_value(int type)
{
    int result = 0;

    if (ISRING(LEFT_1, type))  result += cur_ring[LEFT_1]->o_ac;
    if (ISRING(LEFT_2, type)) result += cur_ring[LEFT_2]->o_ac;
    if (ISRING(LEFT_3, type)) result += cur_ring[LEFT_3]->o_ac;
    if (ISRING(LEFT_4, type)) result += cur_ring[LEFT_4]->o_ac;
    if (ISRING(RIGHT_1, type)) result += cur_ring[RIGHT_1]->o_ac;
    if (ISRING(RIGHT_2, type))  result += cur_ring[RIGHT_2]->o_ac;
    if (ISRING(RIGHT_3, type)) result += cur_ring[RIGHT_3]->o_ac;
    if (ISRING(RIGHT_4, type))  result += cur_ring[RIGHT_4]->o_ac;
    return(result);
}