games/rogue/zap.c

   1 /*      $NetBSD: zap.c,v 1.8 2008/01/14 00:23:53 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 1.8 2008/01/14 00:23:53 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 static object *get_zapped_monster(short, short *, short *);
  59 static void tele_away(object *);
  60 static void wdrain_life(object *);
  61 static void zap_monster(object *, unsigned short);
  62
  63 boolean wizard = 0;
  64
  65 void
  66 zapp(void)
  67 {
  68         short wch;
  69         boolean first_miss = 1;
  70         object *wand;
  71         short dir, d, row, col;
  72         object *monster;
  73
  74         while (!is_direction(dir = rgetchar(), &d)) {
  75                 sound_bell();
  76                 if (first_miss) {
  77                         messagef(0, "direction? ");
  78                         first_miss = 0;
  79                 }
  80         }
  81         check_message();
  82         if (dir == CANCEL) {
  83                 return;
  84         }
  85         if ((wch = pack_letter("zap with what?", WAND)) == CANCEL) {
  86                 return;
  87         }
  88         check_message();
  89
  90         if (!(wand = get_letter_object(wch))) {
  91                 messagef(0, "no such item.");
  92                 return;
  93         }
  94         if (wand->what_is != WAND) {
  95                 messagef(0, "you can't zap with that");
  96                 return;
  97         }
  98         if (wand->class <= 0) {
  99                 messagef(0, "nothing happens");
 100         } else {
 101                 wand->class--;
 102                 row = rogue.row; col = rogue.col;
 103                 if ((wand->which_kind == COLD) || (wand->which_kind == FIRE)) {
 104                         bounce((short)wand->which_kind, d, row, col, 0);
 105                 } else {
 106                         monster = get_zapped_monster(d, &row, &col);
 107                         if (wand->which_kind == DRAIN_LIFE) {
 108                                 wdrain_life(monster);
 109                         } else if (monster) {
 110                                 wake_up(monster);
 111                                 s_con_mon(monster);
 112                                 zap_monster(monster, wand->which_kind);
 113                                 relight();
 114                         }
 115                 }
 116         }
 117         (void)reg_move();
 118 }
 119
 120 static object *
 121 get_zapped_monster(short dir, short *row, short *col)
 122 {
 123         short orow, ocol;
 124
 125         for (;;) {
 126                 orow = *row; ocol = *col;
 127                 get_dir_rc(dir, row, col, 0);
 128                 if (((*row == orow) && (*col == ocol)) ||
 129                    (dungeon[*row][*col] & (HORWALL | VERTWALL)) ||
 130                    (dungeon[*row][*col] == NOTHING)) {
 131                         return(0);
 132                 }
 133                 if (dungeon[*row][*col] & MONSTER) {
 134                         if (!imitating(*row, *col)) {
 135                                 return(object_at(&level_monsters, *row, *col));
 136                         }
 137                 }
 138         }
 139 }
 140
 141 static void
 142 zap_monster(object *monster, unsigned short kind)
 143 {
 144         short row, col;
 145         object *nm;
 146         short tc;
 147
 148         row = monster->row;
 149         col = monster->col;
 150
 151         switch(kind) {
 152         case SLOW_MONSTER:
 153                 if (monster->m_flags & HASTED) {
 154                         monster->m_flags &= (~HASTED);
 155                 } else {
 156                         monster->slowed_toggle = 0;
 157                         monster->m_flags |= SLOWED;
 158                 }
 159                 break;
 160         case HASTE_MONSTER:
 161                 if (monster->m_flags & SLOWED) {
 162                         monster->m_flags &= (~SLOWED);
 163                 } else {
 164                         monster->m_flags |= HASTED;
 165                 }
 166                 break;
 167         case TELE_AWAY:
 168                 tele_away(monster);
 169                 break;
 170         case INVISIBILITY:
 171                 monster->m_flags |= INVISIBLE;
 172                 break;
 173         case POLYMORPH:
 174                 if (monster->m_flags & HOLDS) {
 175                         being_held = 0;
 176                 }
 177                 nm = monster->next_monster;
 178                 tc = monster->trail_char;
 179                 (void)gr_monster(monster, get_rand(0, MONSTERS-1));
 180                 monster->row = row;
 181                 monster->col = col;
 182                 monster->next_monster = nm;
 183                 monster->trail_char = tc;
 184                 if (!(monster->m_flags & IMITATES)) {
 185                         wake_up(monster);
 186                 }
 187                 break;
 188         case MAGIC_MISSILE:
 189                 rogue_hit(monster, 1);
 190                 break;
 191         case CANCELLATION:
 192                 if (monster->m_flags & HOLDS) {
 193                         being_held = 0;
 194                 }
 195                 if (monster->m_flags & STEALS_ITEM) {
 196                         monster->drop_percent = 0;
 197                 }
 198                 monster->m_flags &= (~(FLIES | FLITS | SPECIAL_HIT | INVISIBLE |
 199                         FLAMES | IMITATES | CONFUSES | SEEKS_GOLD | HOLDS));
 200                 break;
 201         case DO_NOTHING:
 202                 messagef(0, "nothing happens");
 203                 break;
 204         }
 205 }
 206
 207 static void
 208 tele_away(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(void)
 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 static void
 251 wdrain_life(object *monster)
 252 {
 253         short hp;
 254         object *lmon, *nm;
 255
 256         hp = rogue.hp_current / 3;
 257         rogue.hp_current = (rogue.hp_current + 1) / 2;
 258
 259         if (cur_room >= 0) {
 260                 lmon = level_monsters.next_monster;
 261                 while (lmon) {
 262                         nm = lmon->next_monster;
 263                         if (get_room_number(lmon->row, lmon->col) == cur_room) {
 264                                 wake_up(lmon);
 265                                 (void)mon_damage(lmon, hp);
 266                         }
 267                         lmon = nm;
 268                 }
 269         } else {
 270                 if (monster) {
 271                         wake_up(monster);
 272                         (void)mon_damage(monster, hp);
 273                 }
 274         }
 275         print_stats(STAT_HP);
 276         relight();
 277 }
 278
 279 void
 280 bounce(short ball, short dir, short row, short col, short r)
 281 {
 282         short orow, ocol;
 283         const char *s;
 284         short i, ch, new_dir = -1, damage;
 285         static short btime;
 286
 287         if (++r == 1) {
 288                 btime = get_rand(3, 6);
 289         } else if (r > btime) {
 290                 return;
 291         }
 292
 293         if (ball == FIRE) {
 294                 s = "fire";
 295         } else {
 296                 s = "ice";
 297         }
 298         if (r > 1) {
 299                 messagef(0, "the %s bounces", s);
 300         }
 301         orow = row;
 302         ocol = col;
 303         do {
 304                 ch = mvinch(orow, ocol);
 305                 standout();
 306                 mvaddch(orow, ocol, ch);
 307                 get_dir_rc(dir, &orow, &ocol, 1);
 308         } while (!(     (ocol <= 0) ||
 309                                 (ocol >= DCOLS-1) ||
 310                                 (dungeon[orow][ocol] == NOTHING) ||
 311                                 (dungeon[orow][ocol] & MONSTER) ||
 312                                 (dungeon[orow][ocol] & (HORWALL | VERTWALL)) ||
 313                                 ((orow == rogue.row) && (ocol == rogue.col))));
 314         standend();
 315         refresh();
 316         do {
 317                 orow = row;
 318                 ocol = col;
 319                 ch = mvinch(row, col);
 320                 mvaddch(row, col, ch);
 321                 get_dir_rc(dir, &row, &col, 1);
 322         } while (!(     (col <= 0) ||
 323                                 (col >= DCOLS-1) ||
 324                                 (dungeon[row][col] == NOTHING) ||
 325                                 (dungeon[row][col] & MONSTER) ||
 326                                 (dungeon[row][col] & (HORWALL | VERTWALL)) ||
 327                                 ((row == rogue.row) && (col == rogue.col))));
 328
 329         if (dungeon[row][col] & MONSTER) {
 330                 object *monster;
 331
 332                 monster = object_at(&level_monsters, row, col);
 333
 334                 wake_up(monster);
 335                 if (rand_percent(33)) {
 336                         messagef(0, "the %s misses the %s", s,
 337                                 mon_name(monster));
 338                         goto ND;
 339                 }
 340                 if (ball == FIRE) {
 341                         if (!(monster->m_flags & RUSTS)) {
 342                                 if (monster->m_flags & FREEZES) {
 343                                         damage = monster->hp_to_kill;
 344                                 } else if (monster->m_flags & FLAMES) {
 345                                         damage = (monster->hp_to_kill / 10) + 1;
 346                                 } else {
 347                                         damage = get_rand((rogue.hp_current / 3), rogue.hp_max);
 348                                 }
 349                         } else {
 350                                 damage = (monster->hp_to_kill / 2) + 1;
 351                         }
 352                         messagef(0, "the %s hits the %s", s,
 353                                 mon_name(monster));
 354                         (void)mon_damage(monster, damage);
 355                 } else {
 356                         damage = -1;
 357                         if (!(monster->m_flags & FREEZES)) {
 358                                 if (rand_percent(33)) {
 359                                         messagef(0, "the monster is frozen");
 360                                         monster->m_flags |= (ASLEEP | NAPPING);
 361                                         monster->nap_length = get_rand(3, 6);
 362                                 } else {
 363                                         damage = rogue.hp_current / 4;
 364                                 }
 365                         } else {
 366                                 damage = -2;
 367                         }
 368                         if (damage != -1) {
 369                                 messagef(0, "the %s hits the %s", s,
 370                                         mon_name(monster));
 371                                 (void)mon_damage(monster, damage);
 372                         }
 373                 }
 374         } else if ((row == rogue.row) && (col == rogue.col)) {
 375                 if (rand_percent(10 + (3 * get_armor_class(rogue.armor)))) {
 376                         messagef(0, "the %s misses", s);
 377                         goto ND;
 378                 } else {
 379                         damage = get_rand(3, (3 * rogue.exp));
 380                         if (ball == FIRE) {
 381                                 damage = (damage * 3) / 2;
 382                                 damage -= get_armor_class(rogue.armor);
 383                         }
 384                         rogue_damage(damage, NULL,
 385                                         ((ball == FIRE) ? KFIRE : HYPOTHERMIA));
 386                         messagef(0, "the %s hits", s);
 387                 }
 388         } else {
 389                 short nrow, ncol;
 390
 391 ND:             for (i = 0; i < 10; i++) {
 392                         dir = get_rand(0, DIRS-1);
 393                         nrow = orow;
 394                         ncol = ocol;
 395                         get_dir_rc(dir, &nrow, &ncol, 1);
 396                         if (((ncol >= 0) && (ncol <= DCOLS-1)) &&
 397                                 (dungeon[nrow][ncol] != NOTHING) &&
 398                                 (!(dungeon[nrow][ncol] & (VERTWALL | HORWALL)))) {
 399                                 new_dir = dir;
 400                                 break;
 401                         }
 402                 }
 403                 if (new_dir != -1) {
 404                         bounce(ball, new_dir, orow, ocol, r);
 405                 }
 406         }
 407 }