rogue/zap.c

   1 /*      $NetBSD: zap.c,v 1.7 2007/12/27 23:53:01 dholland Exp $ */
   2
   3 /*
   4  * Copyright (c) 1988, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Timothy C. Stoehr.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 #ifndef lint
  37 #if 0
  38 static char sccsid[] = "@(#)zap.c       8.1 (Berkeley) 5/31/93";
  39 #else
  40 __RCSID("$NetBSD: zap.c,v 1.7 2007/12/27 23:53:01 dholland Exp $");
  41 #endif
  42 #endif /* not lint */
  43
  44 /*
  45  * zap.c
  46  *
  47  * This source herein may be modified and/or distributed by anybody who
  48  * so desires, with the following restrictions:
  49  *    1.)  No portion of this notice shall be removed.
  50  *    2.)  Credit shall not be taken for the creation of this source.
  51  *    3.)  This code is not to be traded, sold, or used for personal
  52  *         gain or profit.
  53  *
  54  */
  55
  56 #include "rogue.h"
  57
  58 boolean wizard = 0;
  59
  60 void
  61 zapp()
  62 {
  63         short wch;
  64         boolean first_miss = 1;
  65         object *wand;
  66         short dir, d, row, col;
  67         object *monster;
  68
  69         while (!is_direction(dir = rgetchar(), &d)) {
  70                 sound_bell();
  71                 if (first_miss) {
  72                         messagef(0, "direction? ");
  73                         first_miss = 0;
  74                 }
  75         }
  76         check_message();
  77         if (dir == CANCEL) {
  78                 return;
  79         }
  80         if ((wch = pack_letter("zap with what?", WAND)) == CANCEL) {
  81                 return;
  82         }
  83         check_message();
  84
  85         if (!(wand = get_letter_object(wch))) {
  86                 messagef(0, "no such item.");
  87                 return;
  88         }
  89         if (wand->what_is != WAND) {
  90                 messagef(0, "you can't zap with that");
  91                 return;
  92         }
  93         if (wand->class <= 0) {
  94                 messagef(0, "nothing happens");
  95         } else {
  96                 wand->class--;
  97                 row = rogue.row; col = rogue.col;
  98                 if ((wand->which_kind == COLD) || (wand->which_kind == FIRE)) {
  99                         bounce((short) wand->which_kind, d, row, col, 0);
 100                 } else {
 101                         monster = get_zapped_monster(d, &row, &col);
 102                         if (wand->which_kind == DRAIN_LIFE) {
 103                                 wdrain_life(monster);
 104                         } else if (monster) {
 105                                 wake_up(monster);
 106                                 s_con_mon(monster);
 107                                 zap_monster(monster, wand->which_kind);
 108                                 relight();
 109                         }
 110                 }
 111         }
 112         (void) reg_move();
 113 }
 114
 115 object *
 116 get_zapped_monster(dir, row, col)
 117         short dir;
 118         short *row, *col;
 119 {
 120         short orow, ocol;
 121
 122         for (;;) {
 123                 orow = *row; ocol = *col;
 124                 get_dir_rc(dir, row, col, 0);
 125                 if (((*row == orow) && (*col == ocol)) ||
 126                    (dungeon[*row][*col] & (HORWALL | VERTWALL)) ||
 127                    (dungeon[*row][*col] == NOTHING)) {
 128                         return(0);
 129                 }
 130                 if (dungeon[*row][*col] & MONSTER) {
 131                         if (!imitating(*row, *col)) {
 132                                 return(object_at(&level_monsters, *row, *col));
 133                         }
 134                 }
 135         }
 136 }
 137
 138 void
 139 zap_monster(monster, kind)
 140         object *monster;
 141         unsigned short kind;
 142 {
 143         short row, col;
 144         object *nm;
 145         short tc;
 146
 147         row = monster->row;
 148         col = monster->col;
 149
 150         switch(kind) {
 151         case SLOW_MONSTER:
 152                 if (monster->m_flags & HASTED) {
 153                         monster->m_flags &= (~HASTED);
 154                 } else {
 155                         monster->slowed_toggle = 0;
 156                         monster->m_flags |= SLOWED;
 157                 }
 158                 break;
 159         case HASTE_MONSTER:
 160                 if (monster->m_flags & SLOWED) {
 161                         monster->m_flags &= (~SLOWED);
 162                 } else {
 163                         monster->m_flags |= HASTED;
 164                 }
 165                 break;
 166         case TELE_AWAY:
 167                 tele_away(monster);
 168                 break;
 169         case INVISIBILITY:
 170                 monster->m_flags |= INVISIBLE;
 171                 break;
 172         case POLYMORPH:
 173                 if (monster->m_flags & HOLDS) {
 174                         being_held = 0;
 175                 }
 176                 nm = monster->next_monster;
 177                 tc = monster->trail_char;
 178                 (void) gr_monster(monster, get_rand(0, MONSTERS-1));
 179                 monster->row = row;
 180                 monster->col = col;
 181                 monster->next_monster = nm;
 182                 monster->trail_char = tc;
 183                 if (!(monster->m_flags & IMITATES)) {
 184                         wake_up(monster);
 185                 }
 186                 break;
 187         case MAGIC_MISSILE:
 188                 rogue_hit(monster, 1);
 189                 break;
 190         case CANCELLATION:
 191                 if (monster->m_flags & HOLDS) {
 192                         being_held = 0;
 193                 }
 194                 if (monster->m_flags & STEALS_ITEM) {
 195                         monster->drop_percent = 0;
 196                 }
 197                 monster->m_flags &= (~(FLIES | FLITS | SPECIAL_HIT | INVISIBLE |
 198                         FLAMES | IMITATES | CONFUSES | SEEKS_GOLD | HOLDS));
 199                 break;
 200         case DO_NOTHING:
 201                 messagef(0, "nothing happens");
 202                 break;
 203         }
 204 }
 205
 206 void
 207 tele_away(monster)
 208         object *monster;
 209 {
 210         short row, col;
 211
 212         if (monster->m_flags & HOLDS) {
 213                 being_held = 0;
 214         }
 215         gr_row_col(&row, &col, (FLOOR | TUNNEL | STAIRS | OBJECT));
 216         mvaddch(monster->row, monster->col, monster->trail_char);
 217         dungeon[monster->row][monster->col] &= ~MONSTER;
 218         monster->row = row; monster->col = col;
 219         dungeon[row][col] |= MONSTER;
 220         monster->trail_char = mvinch(row, col);
 221         if (detect_monster || rogue_can_see(row, col)) {
 222                 mvaddch(row, col, gmc(monster));
 223         }
 224 }
 225
 226 void
 227 wizardize()
 228 {
 229         char buf[100];
 230
 231         if (wizard) {
 232                 wizard = 0;
 233                 messagef(0, "not wizard anymore");
 234         } else {
 235                 if (get_input_line("wizard's password:", "", buf, sizeof(buf),
 236                                 "", 0, 0)) {
 237                         (void) xxx(1);
 238                         xxxx(buf, strlen(buf));
 239                         if (!strncmp(buf, "\247\104\126\272\115\243\027", 7)) {
 240                                 wizard = 1;
 241                                 score_only = 1;
 242                                 messagef(0, "Welcome, mighty wizard!");
 243                         } else {
 244                                 messagef(0, "sorry");
 245                         }
 246                 }
 247         }
 248 }
 249
 250 void
 251 wdrain_life(monster)
 252         object *monster;
 253 {
 254         short hp;
 255         object *lmon, *nm;
 256
 257         hp = rogue.hp_current / 3;
 258         rogue.hp_current = (rogue.hp_current + 1) / 2;
 259
 260         if (cur_room >= 0) {
 261                 lmon = level_monsters.next_monster;
 262                 while (lmon) {
 263                         nm = lmon->next_monster;
 264                         if (get_room_number(lmon->row, lmon->col) == cur_room) {
 265                                 wake_up(lmon);
 266                                 (void) mon_damage(lmon, hp);
 267                         }
 268                         lmon = nm;
 269                 }
 270         } else {
 271                 if (monster) {
 272                         wake_up(monster);
 273                         (void) mon_damage(monster, hp);
 274                 }
 275         }
 276         print_stats(STAT_HP);
 277         relight();
 278 }
 279
 280 void
 281 bounce(ball, dir, row, col, r)
 282         short ball, dir, row, col, r;
 283 {
 284         short orow, ocol;
 285         const char *s;
 286         short i, ch, new_dir = -1, damage;
 287         static short btime;
 288
 289         if (++r == 1) {
 290                 btime = get_rand(3, 6);
 291         } else if (r > btime) {
 292                 return;
 293         }
 294
 295         if (ball == FIRE) {
 296                 s = "fire";
 297         } else {
 298                 s = "ice";
 299         }
 300         if (r > 1) {
 301                 messagef(0, "the %s bounces", s);
 302         }
 303         orow = row;
 304         ocol = col;
 305         do {
 306                 ch = mvinch(orow, ocol);
 307                 standout();
 308                 mvaddch(orow, ocol, ch);
 309                 get_dir_rc(dir, &orow, &ocol, 1);
 310         } while (!(     (ocol <= 0) ||
 311                                 (ocol >= DCOLS-1) ||
 312                                 (dungeon[orow][ocol] == NOTHING) ||
 313                                 (dungeon[orow][ocol] & MONSTER) ||
 314                                 (dungeon[orow][ocol] & (HORWALL | VERTWALL)) ||
 315                                 ((orow == rogue.row) && (ocol == rogue.col))));
 316         standend();
 317         refresh();
 318         do {
 319                 orow = row;
 320                 ocol = col;
 321                 ch = mvinch(row, col);
 322                 mvaddch(row, col, ch);
 323                 get_dir_rc(dir, &row, &col, 1);
 324         } while (!(     (col <= 0) ||
 325                                 (col >= DCOLS-1) ||
 326                                 (dungeon[row][col] == NOTHING) ||
 327                                 (dungeon[row][col] & MONSTER) ||
 328                                 (dungeon[row][col] & (HORWALL | VERTWALL)) ||
 329                                 ((row == rogue.row) && (col == rogue.col))));
 330
 331         if (dungeon[row][col] & MONSTER) {
 332                 object *monster;
 333
 334                 monster = object_at(&level_monsters, row, col);
 335
 336                 wake_up(monster);
 337                 if (rand_percent(33)) {
 338                         messagef(0, "the %s misses the %s", s,
 339                                 mon_name(monster));
 340                         goto ND;
 341                 }
 342                 if (ball == FIRE) {
 343                         if (!(monster->m_flags & RUSTS)) {
 344                                 if (monster->m_flags & FREEZES) {
 345                                         damage = monster->hp_to_kill;
 346                                 } else if (monster->m_flags & FLAMES) {
 347                                         damage = (monster->hp_to_kill / 10) + 1;
 348                                 } else {
 349                                         damage = get_rand((rogue.hp_current / 3), rogue.hp_max);
 350                                 }
 351                         } else {
 352                                 damage = (monster->hp_to_kill / 2) + 1;
 353                         }
 354                         messagef(0, "the %s hits the %s", s,
 355                                 mon_name(monster));
 356                         (void) mon_damage(monster, damage);
 357                 } else {
 358                         damage = -1;
 359                         if (!(monster->m_flags & FREEZES)) {
 360                                 if (rand_percent(33)) {
 361                                         messagef(0, "the monster is frozen");
 362                                         monster->m_flags |= (ASLEEP | NAPPING);
 363                                         monster->nap_length = get_rand(3, 6);
 364                                 } else {
 365                                         damage = rogue.hp_current / 4;
 366                                 }
 367                         } else {
 368                                 damage = -2;
 369                         }
 370                         if (damage != -1) {
 371                                 messagef(0, "the %s hits the %s", s,
 372                                         mon_name(monster));
 373                                 (void) mon_damage(monster, damage);
 374                         }
 375                 }
 376         } else if ((row == rogue.row) && (col == rogue.col)) {
 377                 if (rand_percent(10 + (3 * get_armor_class(rogue.armor)))) {
 378                         messagef(0, "the %s misses", s);
 379                         goto ND;
 380                 } else {
 381                         damage = get_rand(3, (3 * rogue.exp));
 382                         if (ball == FIRE) {
 383                                 damage = (damage * 3) / 2;
 384                                 damage -= get_armor_class(rogue.armor);
 385                         }
 386                         rogue_damage(damage, (object *) 0,
 387                                         ((ball == FIRE) ? KFIRE : HYPOTHERMIA));
 388                         messagef(0, "the %s hits", s);
 389                 }
 390         } else {
 391                 short nrow, ncol;
 392
 393 ND:             for (i = 0; i < 10; i++) {
 394                         dir = get_rand(0, DIRS-1);
 395                         nrow = orow;
 396                         ncol = ocol;
 397                         get_dir_rc(dir, &nrow, &ncol, 1);
 398                         if (((ncol >= 0) && (ncol <= DCOLS-1)) &&
 399                                 (dungeon[nrow][ncol] != NOTHING) &&
 400                                 (!(dungeon[nrow][ncol] & (VERTWALL | HORWALL)))) {
 401                                 new_dir = dir;
 402                                 break;
 403                         }
 404                 }
 405                 if (new_dir != -1) {
 406                         bounce(ball, new_dir, orow, ocol, r);
 407                 }
 408         }
 409 }