view rogue5/sticks.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 1e1c81fbb533
children
line wrap: on
line source

/*
 * Functions to implement the various sticks one might find
 * while wandering around the dungeon.
 *
 * @(#)sticks.c	4.39 (Berkeley) 02/05/99
 *
 * Rogue: Exploring the Dungeons of Doom
 * Copyright (C) 1980-1983, 1985, 1999 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 <string.h>
#include <ctype.h>
#include "rogue.h"

/*
 * fix_stick:
 *	Set up a new stick
 */

void
fix_stick(THING *cur)
{
    if (strcmp(ws_type[cur->o_which], "staff") == 0)
	strncpy(cur->o_damage,"2x3",sizeof(cur->o_damage));
    else
	strncpy(cur->o_damage,"1x1",sizeof(cur->o_damage));
    strncpy(cur->o_hurldmg,"1x1",sizeof(cur->o_hurldmg));

    switch (cur->o_which)
    {
	case WS_LIGHT:
	    cur->o_charges = rnd(10) + 10;
	otherwise:
	    cur->o_charges = rnd(5) + 3;
    }
}

/*
 * do_zap:
 *	Perform a zap with a wand
 */

void
do_zap(void)
{
    THING *obj, *tp;
    int y, x;
    char *name;
    int monster, oldch;
    THING bolt;

    if ((obj = get_item("zap with", STICK)) == NULL)
	return;
    if (obj->o_type != STICK)
    {
	after = FALSE;
	msg("you can't zap with that!");
	return;
    }
    if (obj->o_charges == 0)
    {
	msg("nothing happens");
	return;
    }
    switch (obj->o_which)
    {
	case WS_LIGHT:
	    /*
	     * Reddy Kilowat wand.  Light up the room
	     */
	    ws_info[WS_LIGHT].oi_know = TRUE;
	    if (proom->r_flags & ISGONE)
		msg("the corridor glows and then fades");
	    else
	    {
		proom->r_flags &= ~ISDARK;
		/*
		 * Light the room and put the player back up
		 */
		enter_room(&hero);
		addmsg("the room is lit");
		if (!terse)
		    addmsg(" by a shimmering %s light", pick_color("blue"));
		endmsg();
	    }
	when WS_DRAIN:
	    /*
	     * take away 1/2 of hero's hit points, then take it away
	     * evenly from the monsters in the room (or next to hero
	     * if he is in a passage)
	     */
	    if (pstats.s_hpt < 2)
	    {
		msg("you are too weak to use it");
		return;
	    }
	    else
		drain();
	when WS_INVIS:
	case WS_POLYMORPH:
	case WS_TELAWAY:
	case WS_TELTO:
	case WS_CANCEL:
	    y = hero.y;
	    x = hero.x;
	    while (step_ok(winat(y, x)))
	    {
		y += delta.y;
		x += delta.x;
	    }
	    if ((tp = moat(y, x)) != NULL)
	    {
		monster = tp->t_type;
		if (monster == 'F')
		    player.t_flags &= ~ISHELD;
		switch (obj->o_which) {
		    case WS_INVIS:
			tp->t_flags |= ISINVIS;
			if (cansee(y, x))
			    mvaddch(y, x, tp->t_oldch);
			break;
		    case WS_POLYMORPH:
		    {
			THING *pp;

			pp = tp->t_pack;
			detach(mlist, tp);
			if (see_monst(tp))
			    mvaddch(y, x, chat(y, x));
			oldch = tp->t_oldch;
			delta.y = y;
			delta.x = x;
			new_monster(tp, monster = rnd(26) + 'A', &delta);
			if (see_monst(tp))
			    mvaddch(y, x, monster);
			tp->t_oldch = oldch;
			tp->t_pack = pp;
			ws_info[WS_POLYMORPH].oi_know |= see_monst(tp);
			break;
		    }
		    case WS_CANCEL:
			tp->t_flags |= ISCANC;
			tp->t_flags &= ~(ISINVIS|CANHUH);
			tp->t_disguise = tp->t_type;
			if (see_monst(tp))
			    mvaddch(y, x, tp->t_disguise);
			break;
		    case WS_TELAWAY:
		    case WS_TELTO:
                    {
			coord new_pos;

			if (obj->o_which == WS_TELAWAY)
			{
			    do
			    {
				find_floor(NULL, &new_pos, FALSE, TRUE);
			    } while (ce(new_pos, hero));
			}
			else
			{
			    new_pos.y = hero.y + delta.y;
			    new_pos.x = hero.x + delta.x;
			}
			tp->t_dest = &hero;
			tp->t_flags |= ISRUN;
			relocate(tp, &new_pos);
		    }
		}
	    }
	when WS_MISSILE:
	    ws_info[WS_MISSILE].oi_know = TRUE;
	    bolt.o_type = '*';
	    strncpy(bolt.o_hurldmg,"1x4",sizeof(bolt.o_hurldmg));
	    bolt.o_hplus = 100;
	    bolt.o_dplus = 1;
	    bolt.o_flags = ISMISL;
	    if (cur_weapon != NULL)
		bolt.o_launch = cur_weapon->o_which;
	    do_motion(&bolt, delta.y, delta.x);
	    if ((tp = moat(bolt.o_pos.y, bolt.o_pos.x)) != NULL
		&& !save_throw(VS_MAGIC, tp))
		    hit_monster(unc(bolt.o_pos), &bolt);
	    else if (terse)
		msg("missle vanishes");
	    else
		msg("the missle vanishes with a puff of smoke");
	when WS_HASTE_M:
	case WS_SLOW_M:
	    y = hero.y;
	    x = hero.x;
	    while (step_ok(winat(y, x)))
	    {
		y += delta.y;
		x += delta.x;
	    }
	    if ((tp = moat(y, x)) != NULL)
	    {
		if (obj->o_which == WS_HASTE_M)
		{
		    if (on(*tp, ISSLOW))
			tp->t_flags &= ~ISSLOW;
		    else
			tp->t_flags |= ISHASTE;
		}
		else
		{
		    if (on(*tp, ISHASTE))
			tp->t_flags &= ~ISHASTE;
		    else
			tp->t_flags |= ISSLOW;
		    tp->t_turn = TRUE;
		}
		delta.y = y;
		delta.x = x;
		runto(&delta);
	    }
	when WS_ELECT:
	case WS_FIRE:
	case WS_COLD:
	    if (obj->o_which == WS_ELECT)
		name = "bolt";
	    else if (obj->o_which == WS_FIRE)
		name = "flame";
	    else
		name = "ice";
	    fire_bolt(&hero, &delta, name);
	    ws_info[obj->o_which].oi_know = TRUE;
	when WS_NOP:
	    break;
#ifdef MASTER
	otherwise:
	    msg("what a bizarre schtick!");
#endif
    }
    obj->o_charges--;
}

/*
 * drain:
 *	Do drain hit points from player shtick
 */

void
drain(void)
{
    THING *mp;
    struct room *corp;
    THING **dp;
    int cnt;
    int inpass;
    THING *drainee[40];

    /*
     * First cnt how many things we need to spread the hit points among
     */
    cnt = 0;
    if (chat(hero.y, hero.x) == DOOR)
	corp = &passages[flat(hero.y, hero.x) & F_PNUM];
    else
	corp = NULL;
    inpass = (proom->r_flags & ISGONE);
    dp = drainee;
    for (mp = mlist; mp != NULL; mp = next(mp))
	if (mp->t_room == proom || mp->t_room == corp ||
	    (inpass && chat(mp->t_pos.y, mp->t_pos.x) == DOOR &&
	    &passages[flat(mp->t_pos.y, mp->t_pos.x) & F_PNUM] == proom))
		*dp++ = mp;
    if ((cnt = (int)(dp - drainee)) == 0)
    {
	msg("you have a tingling feeling");
	return;
    }
    *dp = NULL;
    pstats.s_hpt /= 2;
    cnt = pstats.s_hpt / cnt;
    /*
     * Now zot all of the monsters
     */
    for (dp = drainee; *dp; dp++)
    {
	mp = *dp;
	if ((mp->t_stats.s_hpt -= cnt) <= 0)
	    killed(mp, see_monst(mp));
	else
	    runto(&mp->t_pos);
    }
}

/*
 * fire_bolt:
 *	Fire a bolt in a given direction from a specific starting place
 */

void
fire_bolt(const coord *start, coord *dir, const char *name)
{
    coord *c1, *c2;
    THING *tp;
    int dirch = 0, ch;
    int hit_hero, used, changed;
    coord pos;
    coord spotpos[BOLT_LENGTH];
    THING bolt;

    bolt.o_type = WEAPON;
    bolt.o_which = FLAME;
    strncpy(bolt.o_hurldmg,"6x6",sizeof(bolt.o_hurldmg));
    strncpy(bolt.o_damage,"0x0",sizeof(bolt.o_damage));
    bolt.o_launch = -1;
    bolt.o_hplus = 100;
    bolt.o_dplus = 0;
    weap_info[FLAME].oi_name = name;
    switch (dir->y + dir->x)
    {
	case 0: dirch = '/';
	when 1: case -1: dirch = (dir->y == 0 ? '-' : '|');
	when 2: case -2: dirch = '\\';
    }
    pos = *start;
    hit_hero = (start != &hero);
    used = FALSE;
    changed = FALSE;
    for (c1 = spotpos; c1 <= &spotpos[BOLT_LENGTH-1] && !used; c1++)
    {
	pos.y += dir->y;
	pos.x += dir->x;
	*c1 = pos;
	ch = winat(pos.y, pos.x);
	switch (ch)
	{
	    case DOOR:
		/*
		 * this code is necessary if the hero is on a door
		 * and he fires at the wall the door is in, it would
		 * otherwise loop infinitely
		 */
		if (ce(hero, pos))
		    goto def;
		/* FALLTHROUGH */
	    case '|':
	    case '-':
	    case ' ':
		if (!changed)
		    hit_hero = !hit_hero;
		changed = FALSE;
		dir->y = -dir->y;
		dir->x = -dir->x;
		c1--;
		msg("the %s bounces", name);
		break;
	    default:
def:
		if (!hit_hero && (tp = moat(pos.y, pos.x)) != NULL)
		{
		    hit_hero = TRUE;
		    changed = !changed;
		    tp->t_oldch = chat(pos.y, pos.x);
		    if (!save_throw(VS_MAGIC, tp))
		    {
			bolt.o_pos = pos;
			used = TRUE;
			if (tp->t_type == 'D' && strcmp(name, "flame") == 0)
			{
			    addmsg("the flame bounces");
			    if (!terse)
				addmsg(" off the dragon");
			    endmsg();
			}
			else
			    hit_monster(unc(pos), &bolt);
		    }
		    else if (ch != 'M' || tp->t_disguise == 'M')
		    {
			if (start == &hero)
			    runto(&pos);
			if (terse)
			    msg("%s misses", name);
			else
			    msg("the %s whizzes past %s", name, set_mname(tp));
		    }
		}
		else if (hit_hero && ce(pos, hero))
		{
		    hit_hero = FALSE;
		    changed = !changed;
		    if (!save(VS_MAGIC))
		    {
			if ((pstats.s_hpt -= roll(6, 6)) <= 0)
			{
			    if (start == &hero)
				death('b');
			    else
				death(moat(start->y, start->x)->t_type);
			}
			used = TRUE;
			if (terse)
			    msg("the %s hits", name);
			else
			    msg("you are hit by the %s", name);
		    }
		    else
			msg("the %s whizzes by you", name);
		}
		mvaddch(pos.y, pos.x, dirch);
		refresh();
	}
    }
    for (c2 = spotpos; c2 < c1; c2++)
	mvaddch(c2->y, c2->x, chat(c2->y, c2->x));
}

/*
 * charge_str:
 *	Return an appropriate string for a wand charge
 */
const char *
charge_str(const THING *obj)
{
    static char buf[20];

    if (!(obj->o_flags & ISKNOW))
	buf[0] = '\0';
    else if (terse)
	sprintf(buf, " [%d]", obj->o_charges);
    else
	sprintf(buf, " [%d charges]", obj->o_charges);
    return buf;
}