zap.c

/*
 * Copyright (c) 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Timothy C. Stoehr.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)zap.c	8.1 (Berkeley) 5/31/93";
#endif /* not lint */

/*
 * zap.c
 *
 * This source herein may be modified and/or distributed by anybody who
 * so desires, with the following restrictions:
 *    1.)  No portion of this notice shall be removed.
 *    2.)  Credit shall not be taken for the creation of this source.
 *    3.)  This code is not to be traded, sold, or used for personal
 *         gain or profit.
 *
 */

#include <string.h>
#include "rogue.h"

boolean wizard = 0;

extern boolean being_held, score_only, detect_monster;
extern short cur_room;

zapp()
{
    short wch;
    boolean first_miss = 1;
    object *wand;
    short dir, d, row, col;
    object *monster;

    while (!is_direction(dir = rgetchar(), &d)) {
        sound_bell();
        if (first_miss) {
            message("direction? ", 0);
            first_miss = 0;
        }
    }
    check_message();
    if (dir == CANCEL) {
        return;
    }
    if ((wch = pack_letter("zap with what?", WAND)) == CANCEL) {
        return;
    }
    check_message();

    if (!(wand = get_letter_object(wch))) {
        message("no such item.", 0);
        return;
    }
    if (wand->what_is != WAND) {
        message("you can't zap with that", 0);
        return;
    }
    if (wand->class <= 0) {
        message("nothing happens", 0);
    } else {
        wand->class--;
        row = rogue.row;
        col = rogue.col;
        if ((wand->which_kind == COLD) || (wand->which_kind == FIRE)) {
            bounce((short) wand->which_kind, d, row, col, 0);
        } else {
            monster = get_zapped_monster(d, &row, &col);
            if (wand->which_kind == DRAIN_LIFE) {
                wdrain_life(monster);
            } else if (monster) {
                wake_up(monster);
                s_con_mon(monster);
                zap_monster(monster, wand->which_kind);
                relight();
            }
        }
    }
    (void) reg_move();
}

object *
get_zapped_monster(dir, row, col)
short dir;
short *row, *col;
{
    short orow, ocol;

    for (;;) {
        orow = *row;
        ocol = *col;
        get_dir_rc(dir, row, col, 0);
        if (((*row == orow) && (*col == ocol)) ||
                (dungeon[*row][*col] & (HORWALL | VERTWALL)) ||
                (dungeon[*row][*col] == NOTHING)) {
            return (0);
        }
        if (dungeon[*row][*col] & MONSTER) {
            if (!imitating(*row, *col)) {
                return (object_at(&level_monsters, *row, *col));
            }
        }
    }
}

zap_monster(monster, kind)
object *monster;
unsigned short kind;
{
    short row, col;
    object *nm;
    short tc;

    row = monster->row;
    col = monster->col;

    switch (kind) {
    case SLOW_MONSTER:
        if (monster->m_flags & HASTED) {
            monster->m_flags &= (~HASTED);
        } else {
            monster->slowed_toggle = 0;
            monster->m_flags |= SLOWED;
        }
        break;
    case HASTE_MONSTER:
        if (monster->m_flags & SLOWED) {
            monster->m_flags &= (~SLOWED);
        } else {
            monster->m_flags |= HASTED;
        }
        break;
    case TELE_AWAY:
        tele_away(monster);
        break;
    case INVISIBILITY:
        monster->m_flags |= INVISIBLE;
        break;
    case POLYMORPH:
        if (monster->m_flags & HOLDS) {
            being_held = 0;
        }
        nm = monster->next_monster;
        tc = monster->trail_char;
        (void) gr_monster(monster, get_rand(0, MONSTERS - 1));
        monster->row = row;
        monster->col = col;
        monster->next_monster = nm;
        monster->trail_char = tc;
        if (!(monster->m_flags & IMITATES)) {
            wake_up(monster);
        }
        break;
    case MAGIC_MISSILE:
        rogue_hit(monster, 1);
        break;
    case CANCELLATION:
        if (monster->m_flags & HOLDS) {
            being_held = 0;
        }
        if (monster->m_flags & STEALS_ITEM) {
            monster->drop_percent = 0;
        }
        monster->m_flags &= (~(FLIES | FLITS | SPECIAL_HIT | INVISIBLE |
                               FLAMES | IMITATES | CONFUSES | SEEKS_GOLD | HOLDS));
        break;
    case DO_NOTHING:
        message("nothing happens", 0);
        break;
    }
}

tele_away(monster)
object *monster;
{
    short row, col;

    if (monster->m_flags & HOLDS) {
        being_held = 0;
    }
    gr_row_col(&row, &col, (FLOOR | TUNNEL | STAIRS | OBJECT));
    mvaddch(monster->row, monster->col, monster->trail_char);
    dungeon[monster->row][monster->col] &= ~MONSTER;
    monster->row = row;
    monster->col = col;
    dungeon[row][col] |= MONSTER;
    monster->trail_char = mvinch(row, col);
    if (detect_monster || rogue_can_see(row, col)) {
        mvaddch(row, col, gmc(monster));
    }
}

wizardize()
{
    char buf[100];

    if (wizard) {
        wizard = 0;
        message("not wizard anymore", 0);
    } else {
        if (get_input_line("wizard's password:", "", buf, "", 0, 0)) {
            (void) xxx(1);
            xxxx(buf, strlen(buf));
            if (!strncmp(buf, "\247\104\126\272\115\243\027", 7)) {
                wizard = 1;
                score_only = 1;
                message("Welcome, mighty wizard!", 0);
            } else {
                message("sorry", 0);
            }
        }
    }
}

wdrain_life(monster)
object *monster;
{
    short hp;
    object *lmon, *nm;

    hp = rogue.hp_current / 3;
    rogue.hp_current = (rogue.hp_current + 1) / 2;

    if (cur_room >= 0) {
        lmon = level_monsters.next_monster;
        while (lmon) {
            nm = lmon->next_monster;
            if (get_room_number(lmon->row, lmon->col) == cur_room) {
                wake_up(lmon);
                (void) mon_damage(lmon, hp);
            }
            lmon = nm;
        }
    } else {
        if (monster) {
            wake_up(monster);
            (void) mon_damage(monster, hp);
        }
    }
    print_stats(STAT_HP);
    relight();
}

bounce(ball, dir, row, col, r)
short ball, dir, row, col, r;
{
    short orow, ocol;
    char buf[DCOLS], *s;
    short i, ch, new_dir = -1, damage;
    static short btime;

    if (++r == 1) {
        btime = get_rand(3, 6);
    } else if (r > btime) {
        return;
    }

    if (ball == FIRE) {
        s = "fire";
    } else {
        s = "ice";
    }
    if (r > 1) {
        sprintf(buf, "the %s bounces", s);
        message(buf, 0);
    }
    orow = row;
    ocol = col;
    do {
        ch = mvinch(orow, ocol);
        standout();
        mvaddch(orow, ocol, ch);
        get_dir_rc(dir, &orow, &ocol, 1);
    } while (!((ocol <= 0) ||
               (ocol >= DCOLS - 1) ||
               (dungeon[orow][ocol] == NOTHING) ||
               (dungeon[orow][ocol] & MONSTER) ||
               (dungeon[orow][ocol] & (HORWALL | VERTWALL)) ||
               ((orow == rogue.row) && (ocol == rogue.col))));
    standend();
    refresh();
    do {
        orow = row;
        ocol = col;
        ch = mvinch(row, col);
        mvaddch(row, col, ch);
        get_dir_rc(dir, &row, &col, 1);
    } while (!((col <= 0) ||
               (col >= DCOLS - 1) ||
               (dungeon[row][col] == NOTHING) ||
               (dungeon[row][col] & MONSTER) ||
               (dungeon[row][col] & (HORWALL | VERTWALL)) ||
               ((row == rogue.row) && (col == rogue.col))));

    if (dungeon[row][col] & MONSTER) {
        object *monster;

        monster = object_at(&level_monsters, row, col);

        wake_up(monster);
        if (rand_percent(33)) {
            sprintf(buf, "the %s misses the %s", s, mon_name(monster));
            message(buf, 0);
            goto ND;
        }
        if (ball == FIRE) {
            if (!(monster->m_flags & RUSTS)) {
                if (monster->m_flags & FREEZES) {
                    damage = monster->hp_to_kill;
                } else if (monster->m_flags & FLAMES) {
                    damage = (monster->hp_to_kill / 10) + 1;
                } else {
                    damage = get_rand((rogue.hp_current / 3), rogue.hp_max);
                }
            } else {
                damage = (monster->hp_to_kill / 2) + 1;
            }
            sprintf(buf, "the %s hits the %s", s, mon_name(monster));
            message(buf, 0);
            (void) mon_damage(monster, damage);
        } else {
            damage = -1;
            if (!(monster->m_flags & FREEZES)) {
                if (rand_percent(33)) {
                    message("the monster is frozen", 0);
                    monster->m_flags |= (ASLEEP | NAPPING);
                    monster->nap_length = get_rand(3, 6);
                } else {
                    damage = rogue.hp_current / 4;
                }
            } else {
                damage = -2;
            }
            if (damage != -1) {
                sprintf(buf, "the %s hits the %s", s, mon_name(monster));
                message(buf, 0);
                (void) mon_damage(monster, damage);
            }
        }
    } else if ((row == rogue.row) && (col == rogue.col)) {
        if (rand_percent(10 + (3 * get_armor_class(rogue.armor)))) {
            sprintf(buf, "the %s misses", s);
            message(buf, 0);
            goto ND;
        } else {
            damage = get_rand(3, (3 * rogue.exp));
            if (ball == FIRE) {
                damage = (damage * 3) / 2;
                damage -= get_armor_class(rogue.armor);
            }
            sprintf(buf, "the %s hits", s);
            rogue_damage(damage, (object *) 0,
                         ((ball == FIRE) ? KFIRE : HYPOTHERMIA));
            message(buf, 0);
        }
    } else {
        short nrow, ncol;

ND:
        for (i = 0; i < 10; i++) {
            dir = get_rand(0, DIRS - 1);
            nrow = orow;
            ncol = ocol;
            get_dir_rc(dir, &nrow, &ncol, 1);
            if (((ncol >= 0) && (ncol <= DCOLS - 1)) &&
                    (dungeon[nrow][ncol] != NOTHING) &&
                    (!(dungeon[nrow][ncol] & (VERTWALL | HORWALL)))) {
                new_dir = dir;
                break;
            }
        }
        if (new_dir != -1) {
            bounce(ball, new_dir, orow, ocol, r);
        }
    }
}