games/rogue/zap.c

   1 /*
   2  * Copyright (c) 1988, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Timothy C. Stoehr.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * @(#)zap.c    8.1 (Berkeley) 5/31/93
  37  * $FreeBSD: src/games/rogue/zap.c,v 1.3 1999/11/30 03:49:29 billf Exp $
  38  * $DragonFly: src/games/rogue/zap.c,v 1.3 2006/09/02 19:31:07 pavalos Exp $
  39  */
  40
  41 /*
  42  * zap.c
  43  *
  44  * This source herein may be modified and/or distributed by anybody who
  45  * so desires, with the following restrictions:
  46  *    1.)  No portion of this notice shall be removed.
  47  *    2.)  Credit shall not be taken for the creation of this source.
  48  *    3.)  This code is not to be traded, sold, or used for personal
  49  *         gain or profit.
  50  *
  51  */
  52
  53 #include "rogue.h"
  54
  55 boolean wizard = 0;
  56
  57 extern boolean being_held, score_only, detect_monster;
  58 extern short cur_room;
  59
  60 static object   *get_zapped_monster(short, short *, short *);
  61 static void     zap_monster(object *, unsigned short);
  62 static void     tele_away(object *);
  63 static void     wdrain_life(object *);
  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                         message("direction? ", 0);
  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                 message("no such item.", 0);
  92                 return;
  93         }
  94         if (wand->what_is != WAND) {
  95                 message("you can't zap with that", 0);
  96                 return;
  97         }
  98         if (wand->class <= 0) {
  99                 message("nothing happens", 0);
 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         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                 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                 message("nothing happens", 0);
 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                 message("not wizard anymore", 0);
 234         } else {
 235                 if (get_input_line("wizard's password:", "", buf, "", 0, 0)) {
 236                         xxx(1);
 237                         xxxx(buf, strlen(buf));
 238                         if (!strncmp(buf, "\247\104\126\272\115\243\027", 7)) {
 239                                 wizard = 1;
 240                                 score_only = 1;
 241                                 message("Welcome, mighty wizard!", 0);
 242                         } else {
 243                                 message("sorry", 0);
 244                         }
 245                 }
 246         }
 247 }
 248
 249 static void
 250 wdrain_life(object *monster)
 251 {
 252         short hp;
 253         object *lmon, *nm;
 254
 255         hp = rogue.hp_current / 3;
 256         rogue.hp_current = (rogue.hp_current + 1) / 2;
 257
 258         if (cur_room >= 0) {
 259                 lmon = level_monsters.next_monster;
 260                 while (lmon) {
 261                         nm = lmon->next_monster;
 262                         if (get_room_number(lmon->row, lmon->col) == cur_room) {
 263                                 wake_up(lmon);
 264                                 mon_damage(lmon, hp);
 265                         }
 266                         lmon = nm;
 267                 }
 268         } else {
 269                 if (monster) {
 270                         wake_up(monster);
 271                         mon_damage(monster, hp);
 272                 }
 273         }
 274         print_stats(STAT_HP);
 275         relight();
 276 }
 277
 278 void
 279 bounce(short ball, short dir, short row, short col, short r)
 280 {
 281         short orow, ocol;
 282         char buf[DCOLS];
 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                 sprintf(buf, "the %s bounces", s);
 300                 message(buf, 0);
 301         }
 302         orow = row;
 303         ocol = col;
 304         do {
 305                 ch = mvinch(orow, ocol);
 306                 standout();
 307                 mvaddch(orow, ocol, ch);
 308                 get_dir_rc(dir, &orow, &ocol, 1);
 309         } while (!(     (ocol <= 0) ||
 310                                 (ocol >= DCOLS-1) ||
 311                                 (dungeon[orow][ocol] == NOTHING) ||
 312                                 (dungeon[orow][ocol] & MONSTER) ||
 313                                 (dungeon[orow][ocol] & (HORWALL | VERTWALL)) ||
 314                                 ((orow == rogue.row) && (ocol == rogue.col))));
 315         standend();
 316         refresh();
 317         do {
 318                 orow = row;
 319                 ocol = col;
 320                 ch = mvinch(row, col);
 321                 mvaddch(row, col, ch);
 322                 get_dir_rc(dir, &row, &col, 1);
 323         } while (!(     (col <= 0) ||
 324                                 (col >= DCOLS-1) ||
 325                                 (dungeon[row][col] == NOTHING) ||
 326                                 (dungeon[row][col] & MONSTER) ||
 327                                 (dungeon[row][col] & (HORWALL | VERTWALL)) ||
 328                                 ((row == rogue.row) && (col == rogue.col))));
 329
 330         if (dungeon[row][col] & MONSTER) {
 331                 object *monster;
 332
 333                 monster = object_at(&level_monsters, row, col);
 334
 335                 wake_up(monster);
 336                 if (rand_percent(33)) {
 337                         sprintf(buf, "the %s misses the %s", s, mon_name(monster));
 338                         message(buf, 0);
 339                         goto ND;
 340                 }
 341                 if (ball == FIRE) {
 342                         if (!(monster->m_flags & RUSTS)) {
 343                                 if (monster->m_flags & FREEZES) {
 344                                         damage = monster->hp_to_kill;
 345                                 } else if (monster->m_flags & FLAMES) {
 346                                         damage = (monster->hp_to_kill / 10) + 1;
 347                                 } else {
 348                                         damage = get_rand((rogue.hp_current / 3), rogue.hp_max);
 349                                 }
 350                         } else {
 351                                 damage = (monster->hp_to_kill / 2) + 1;
 352                         }
 353                         sprintf(buf, "the %s hits the %s", s, mon_name(monster));
 354                         message(buf, 0);
 355                         mon_damage(monster, damage);
 356                 } else {
 357                         damage = -1;
 358                         if (!(monster->m_flags & FREEZES)) {
 359                                 if (rand_percent(33)) {
 360                                         message("the monster is frozen", 0);
 361                                         monster->m_flags |= (ASLEEP | NAPPING);
 362                                         monster->nap_length = get_rand(3, 6);
 363                                 } else {
 364                                         damage = rogue.hp_current / 4;
 365                                 }
 366                         } else {
 367                                 damage = -2;
 368                         }
 369                         if (damage != -1) {
 370                                 sprintf(buf, "the %s hits the %s", s, mon_name(monster));
 371                                 message(buf, 0);
 372                                 mon_damage(monster, damage);
 373                         }
 374                 }
 375         } else if ((row == rogue.row) && (col == rogue.col)) {
 376                 if (rand_percent(10 + (3 * get_armor_class(rogue.armor)))) {
 377                         sprintf(buf, "the %s misses", s);
 378                         message(buf, 0);
 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                         sprintf(buf, "the %s hits", s);
 387                         rogue_damage(damage, (object *) 0,
 388                                         ((ball == FIRE) ? KFIRE : HYPOTHERMIA));
 389                         message(buf, 0);
 390                 }
 391         } else {
 392                 short nrow, ncol;
 393
 394 ND:             for (i = 0; i < 10; i++) {
 395                         dir = get_rand(0, DIRS-1);
 396                         nrow = orow;
 397                         ncol = ocol;
 398                         get_dir_rc(dir, &nrow, &ncol, 1);
 399                         if (((ncol >= 0) && (ncol <= DCOLS-1)) &&
 400                                 (dungeon[nrow][ncol] != NOTHING) &&
 401                                 (!(dungeon[nrow][ncol] & (VERTWALL | HORWALL)))) {
 402                                 new_dir = dir;
 403                                 break;
 404                         }
 405                 }
 406                 if (new_dir != -1) {
 407                         bounce(ball, new_dir, orow, ocol, r);
 408                 }
 409         }
 410 }