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. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * @(#)zap.c    8.1 (Berkeley) 5/31/93
  33  * $FreeBSD: src/games/rogue/zap.c,v 1.3 1999/11/30 03:49:29 billf Exp $
  34  */
  35
  36 /*
  37  * zap.c
  38  *
  39  * This source herein may be modified and/or distributed by anybody who
  40  * so desires, with the following restrictions:
  41  *    1.)  No portion of this notice shall be removed.
  42  *    2.)  Credit shall not be taken for the creation of this source.
  43  *    3.)  This code is not to be traded, sold, or used for personal
  44  *         gain or profit.
  45  *
  46  */
  47
  48 #include "rogue.h"
  49
  50 static object *get_zapped_monster(short, short *, short *);
  51 static void tele_away(object *);
  52 static void wdrain_life(object *);
  53 static void zap_monster(object *, unsigned short);
  54
  55 boolean wizard = 0;
  56
  57 void
  58 zapp(void)
  59 {
  60         short wch;
  61         boolean first_miss = 1;
  62         object *wand;
  63         short dir, d, row, col;
  64         object *monster;
  65
  66         while (!is_direction(dir = rgetchar(), &d)) {
  67                 sound_bell();
  68                 if (first_miss) {
  69                         message("direction? ", 0);
  70                         first_miss = 0;
  71                 }
  72         }
  73         check_message();
  74         if (dir == CANCEL) {
  75                 return;
  76         }
  77         if ((wch = pack_letter("zap with what?", WAND)) == CANCEL) {
  78                 return;
  79         }
  80         check_message();
  81
  82         if (!(wand = get_letter_object(wch))) {
  83                 message("no such item.", 0);
  84                 return;
  85         }
  86         if (wand->what_is != WAND) {
  87                 message("you can't zap with that", 0);
  88                 return;
  89         }
  90         if (wand->class <= 0) {
  91                 message("nothing happens", 0);
  92         } else {
  93                 wand->class--;
  94                 row = rogue.row; col = rogue.col;
  95                 if ((wand->which_kind == COLD) || (wand->which_kind == FIRE)) {
  96                         bounce((short)wand->which_kind, d, row, col, 0);
  97                 } else {
  98                         monster = get_zapped_monster(d, &row, &col);
  99                         if (wand->which_kind == DRAIN_LIFE) {
 100                                 wdrain_life(monster);
 101                         } else if (monster) {
 102                                 wake_up(monster);
 103                                 s_con_mon(monster);
 104                                 zap_monster(monster, wand->which_kind);
 105                                 relight();
 106                         }
 107                 }
 108         }
 109         reg_move();
 110 }
 111
 112 static object *
 113 get_zapped_monster(short dir, short *row, short *col)
 114 {
 115         short orow, ocol;
 116
 117         for (;;) {
 118                 orow = *row; ocol = *col;
 119                 get_dir_rc(dir, row, col, 0);
 120                 if (((*row == orow) && (*col == ocol)) ||
 121                    (dungeon[*row][*col] & (HORWALL | VERTWALL)) ||
 122                    (dungeon[*row][*col] == NOTHING)) {
 123                         return(0);
 124                 }
 125                 if (dungeon[*row][*col] & MONSTER) {
 126                         if (!imitating(*row, *col)) {
 127                                 return(object_at(&level_monsters, *row, *col));
 128                         }
 129                 }
 130         }
 131 }
 132
 133 static void
 134 zap_monster(object *monster, unsigned short kind)
 135 {
 136         short row, col;
 137         object *nm;
 138         short tc;
 139
 140         row = monster->row;
 141         col = monster->col;
 142
 143         switch(kind) {
 144         case SLOW_MONSTER:
 145                 if (monster->m_flags & HASTED) {
 146                         monster->m_flags &= (~HASTED);
 147                 } else {
 148                         monster->slowed_toggle = 0;
 149                         monster->m_flags |= SLOWED;
 150                 }
 151                 break;
 152         case HASTE_MONSTER:
 153                 if (monster->m_flags & SLOWED) {
 154                         monster->m_flags &= (~SLOWED);
 155                 } else {
 156                         monster->m_flags |= HASTED;
 157                 }
 158                 break;
 159         case TELE_AWAY:
 160                 tele_away(monster);
 161                 break;
 162         case INVISIBILITY:
 163                 monster->m_flags |= INVISIBLE;
 164                 break;
 165         case POLYMORPH:
 166                 if (monster->m_flags & HOLDS) {
 167                         being_held = 0;
 168                 }
 169                 nm = monster->next_monster;
 170                 tc = monster->trail_char;
 171                 gr_monster(monster, get_rand(0, MONSTERS-1));
 172                 monster->row = row;
 173                 monster->col = col;
 174                 monster->next_monster = nm;
 175                 monster->trail_char = tc;
 176                 if (!(monster->m_flags & IMITATES)) {
 177                         wake_up(monster);
 178                 }
 179                 break;
 180         case MAGIC_MISSILE:
 181                 rogue_hit(monster, 1);
 182                 break;
 183         case CANCELLATION:
 184                 if (monster->m_flags & HOLDS) {
 185                         being_held = 0;
 186                 }
 187                 if (monster->m_flags & STEALS_ITEM) {
 188                         monster->drop_percent = 0;
 189                 }
 190                 monster->m_flags &= (~(FLIES | FLITS | SPECIAL_HIT | INVISIBLE |
 191                         FLAMES | IMITATES | CONFUSES | SEEKS_GOLD | HOLDS));
 192                 break;
 193         case DO_NOTHING:
 194                 message("nothing happens", 0);
 195                 break;
 196         }
 197 }
 198
 199 static void
 200 tele_away(object *monster)
 201 {
 202         short row, col;
 203
 204         if (monster->m_flags & HOLDS) {
 205                 being_held = 0;
 206         }
 207         gr_row_col(&row, &col, (FLOOR | TUNNEL | STAIRS | OBJECT));
 208         mvaddch(monster->row, monster->col, monster->trail_char);
 209         dungeon[monster->row][monster->col] &= ~MONSTER;
 210         monster->row = row; monster->col = col;
 211         dungeon[row][col] |= MONSTER;
 212         monster->trail_char = mvinch(row, col);
 213         if (detect_monster || rogue_can_see(row, col)) {
 214                 mvaddch(row, col, gmc(monster));
 215         }
 216 }
 217
 218 void
 219 wizardize(void)
 220 {
 221         char buf[100];
 222
 223         if (wizard) {
 224                 wizard = 0;
 225                 message("not wizard anymore", 0);
 226         } else {
 227                 if (get_input_line("wizard's password:", "", buf, "", 0, 0)) {
 228                         xxx(1);
 229                         xxxx(buf, strlen(buf));
 230                         if (!strncmp(buf, "\247\104\126\272\115\243\027", 7)) {
 231                                 wizard = 1;
 232                                 score_only = 1;
 233                                 message("Welcome, mighty wizard!", 0);
 234                         } else {
 235                                 message("sorry", 0);
 236                         }
 237                 }
 238         }
 239 }
 240
 241 static void
 242 wdrain_life(object *monster)
 243 {
 244         short hp;
 245         object *lmon, *nm;
 246
 247         hp = rogue.hp_current / 3;
 248         rogue.hp_current = (rogue.hp_current + 1) / 2;
 249
 250         if (cur_room >= 0) {
 251                 lmon = level_monsters.next_monster;
 252                 while (lmon) {
 253                         nm = lmon->next_monster;
 254                         if (get_room_number(lmon->row, lmon->col) == cur_room) {
 255                                 wake_up(lmon);
 256                                 mon_damage(lmon, hp);
 257                         }
 258                         lmon = nm;
 259                 }
 260         } else {
 261                 if (monster) {
 262                         wake_up(monster);
 263                         mon_damage(monster, hp);
 264                 }
 265         }
 266         print_stats(STAT_HP);
 267         relight();
 268 }
 269
 270 void
 271 bounce(short ball, short dir, short row, short col, short r)
 272 {
 273         short orow, ocol;
 274         char buf[DCOLS];
 275         const char *s;
 276         short i, ch, new_dir = -1, damage;
 277         static short btime;
 278
 279         if (++r == 1) {
 280                 btime = get_rand(3, 6);
 281         } else if (r > btime) {
 282                 return;
 283         }
 284
 285         if (ball == FIRE) {
 286                 s = "fire";
 287         } else {
 288                 s = "ice";
 289         }
 290         if (r > 1) {
 291                 sprintf(buf, "the %s bounces", s);
 292                 message(buf, 0);
 293         }
 294         orow = row;
 295         ocol = col;
 296         do {
 297                 ch = mvinch(orow, ocol);
 298                 standout();
 299                 mvaddch(orow, ocol, ch);
 300                 get_dir_rc(dir, &orow, &ocol, 1);
 301         } while (!(     (ocol <= 0) ||
 302                                 (ocol >= DCOLS-1) ||
 303                                 (dungeon[orow][ocol] == NOTHING) ||
 304                                 (dungeon[orow][ocol] & MONSTER) ||
 305                                 (dungeon[orow][ocol] & (HORWALL | VERTWALL)) ||
 306                                 ((orow == rogue.row) && (ocol == rogue.col))));
 307         standend();
 308         refresh();
 309         do {
 310                 orow = row;
 311                 ocol = col;
 312                 ch = mvinch(row, col);
 313                 mvaddch(row, col, ch);
 314                 get_dir_rc(dir, &row, &col, 1);
 315         } while (!(     (col <= 0) ||
 316                                 (col >= DCOLS-1) ||
 317                                 (dungeon[row][col] == NOTHING) ||
 318                                 (dungeon[row][col] & MONSTER) ||
 319                                 (dungeon[row][col] & (HORWALL | VERTWALL)) ||
 320                                 ((row == rogue.row) && (col == rogue.col))));
 321
 322         if (dungeon[row][col] & MONSTER) {
 323                 object *monster;
 324
 325                 monster = object_at(&level_monsters, row, col);
 326
 327                 wake_up(monster);
 328                 if (rand_percent(33)) {
 329                         sprintf(buf, "the %s misses the %s", s, mon_name(monster));
 330                         message(buf, 0);
 331                         goto ND;
 332                 }
 333                 if (ball == FIRE) {
 334                         if (!(monster->m_flags & RUSTS)) {
 335                                 if (monster->m_flags & FREEZES) {
 336                                         damage = monster->hp_to_kill;
 337                                 } else if (monster->m_flags & FLAMES) {
 338                                         damage = (monster->hp_to_kill / 10) + 1;
 339                                 } else {
 340                                         damage = get_rand((rogue.hp_current / 3), rogue.hp_max);
 341                                 }
 342                         } else {
 343                                 damage = (monster->hp_to_kill / 2) + 1;
 344                         }
 345                         sprintf(buf, "the %s hits the %s", s, mon_name(monster));
 346                         message(buf, 0);
 347                         mon_damage(monster, damage);
 348                 } else {
 349                         damage = -1;
 350                         if (!(monster->m_flags & FREEZES)) {
 351                                 if (rand_percent(33)) {
 352                                         message("the monster is frozen", 0);
 353                                         monster->m_flags |= (ASLEEP | NAPPING);
 354                                         monster->nap_length = get_rand(3, 6);
 355                                 } else {
 356                                         damage = rogue.hp_current / 4;
 357                                 }
 358                         } else {
 359                                 damage = -2;
 360                         }
 361                         if (damage != -1) {
 362                                 sprintf(buf, "the %s hits the %s", s, mon_name(monster));
 363                                 message(buf, 0);
 364                                 mon_damage(monster, damage);
 365                         }
 366                 }
 367         } else if ((row == rogue.row) && (col == rogue.col)) {
 368                 if (rand_percent(10 + (3 * get_armor_class(rogue.armor)))) {
 369                         sprintf(buf, "the %s misses", s);
 370                         message(buf, 0);
 371                         goto ND;
 372                 } else {
 373                         damage = get_rand(3, (3 * rogue.exp));
 374                         if (ball == FIRE) {
 375                                 damage = (damage * 3) / 2;
 376                                 damage -= get_armor_class(rogue.armor);
 377                         }
 378                         sprintf(buf, "the %s hits", s);
 379                         rogue_damage(damage, NULL,
 380                                         ((ball == FIRE) ? KFIRE : HYPOTHERMIA));
 381                         message(buf, 0);
 382                 }
 383         } else {
 384                 short nrow, ncol;
 385
 386 ND:             for (i = 0; i < 10; i++) {
 387                         dir = get_rand(0, DIRS-1);
 388                         nrow = orow;
 389                         ncol = ocol;
 390                         get_dir_rc(dir, &nrow, &ncol, 1);
 391                         if (((ncol >= 0) && (ncol <= DCOLS-1)) &&
 392                                 (dungeon[nrow][ncol] != NOTHING) &&
 393                                 (!(dungeon[nrow][ncol] & (VERTWALL | HORWALL)))) {
 394                                 new_dir = dir;
 395                                 break;
 396                         }
 397                 }
 398                 if (new_dir != -1) {
 399                         bounce(ball, new_dir, orow, ocol, r);
 400                 }
 401         }
 402 }