games/hack/hack.wizard.c

   1 /*      $NetBSD: hack.wizard.c,v 1.6 2003/04/02 18:36:41 jsm Exp $      */
   2
   3 /*
   4  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
   5  * Amsterdam
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are
  10  * met:
  11  *
  12  * - Redistributions of source code must retain the above copyright notice,
  13  * this list of conditions and the following disclaimer.
  14  *
  15  * - 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  *
  19  * - Neither the name of the Stichting Centrum voor Wiskunde en
  20  * Informatica, nor the names of its contributors may be used to endorse or
  21  * promote products derived from this software without specific prior
  22  * written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  25  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  26  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  27  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  28  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  30  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  31  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  32  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  33  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  34  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 /*
  38  * Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
  39  * All rights reserved.
  40  *
  41  * Redistribution and use in source and binary forms, with or without
  42  * modification, are permitted provided that the following conditions
  43  * are met:
  44  * 1. Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  * 2. Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in the
  48  *    documentation and/or other materials provided with the distribution.
  49  * 3. The name of the author may not be used to endorse or promote products
  50  *    derived from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  53  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  54  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
  55  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  56  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  57  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  58  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  59  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  60  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  61  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  62  */
  63
  64 #include <sys/cdefs.h>
  65 #ifndef lint
  66 __RCSID("$NetBSD: hack.wizard.c,v 1.6 2003/04/02 18:36:41 jsm Exp $");
  67 #endif                          /* not lint */
  68
  69 /* wizard code - inspired by rogue code from Merlyn Leroy (digi-g!brian) */
  70
  71 #include "hack.h"
  72 #include "extern.h"
  73
  74 #define WIZSHOT     6           /* one chance in WIZSHOT that wizard will try
  75                                  * magic */
  76 #define BOLT_LIM    8           /* from this distance D and 1 will try to hit
  77                                  * you */
  78
  79 const char            wizapp[] = "@DNPTUVXcemntx";
  80
  81 /* If he has found the Amulet, make the wizard appear after some time */
  82 void
  83 amulet()
  84 {
  85         struct obj     *otmp;
  86         struct monst   *mtmp;
  87
  88         if (!flags.made_amulet || !flags.no_of_wizards)
  89                 return;
  90         /* find wizard, and wake him if necessary */
  91         for (mtmp = fmon; mtmp; mtmp = mtmp->nmon)
  92                 if (mtmp->data->mlet == '1' && mtmp->msleep && !rn2(40))
  93                         for (otmp = invent; otmp; otmp = otmp->nobj)
  94                                 if (otmp->olet == AMULET_SYM && !otmp->spe) {
  95                                         mtmp->msleep = 0;
  96                                         if (dist(mtmp->mx, mtmp->my) > 2)
  97                                                 pline(
  98                                                       "You get the creepy feeling that somebody noticed your taking the Amulet."
  99                                                         );
 100                                         return;
 101                                 }
 102 }
 103
 104 int
 105 wiz_hit(mtmp)
 106         struct monst   *mtmp;
 107 {
 108         /* if we have stolen or found the amulet, we disappear */
 109         if (mtmp->minvent && mtmp->minvent->olet == AMULET_SYM &&
 110             mtmp->minvent->spe == 0) {
 111                 /* vanish -- very primitive */
 112                 fall_down(mtmp);
 113                 return (1);
 114         }
 115         /* if it is lying around someplace, we teleport to it */
 116         if (!carrying(AMULET_OF_YENDOR)) {
 117                 struct obj     *otmp;
 118
 119                 for (otmp = fobj; otmp; otmp = otmp->nobj)
 120                         if (otmp->olet == AMULET_SYM && !otmp->spe) {
 121                                 if ((u.ux != otmp->ox || u.uy != otmp->oy) &&
 122                                     !m_at(otmp->ox, otmp->oy)) {
 123
 124                                         /* teleport to it and pick it up */
 125                                         mtmp->mx = otmp->ox;
 126                                         mtmp->my = otmp->oy;
 127                                         freeobj(otmp);
 128                                         mpickobj(mtmp, otmp);
 129                                         pmon(mtmp);
 130                                         return (0);
 131                                 }
 132                                 goto hithim;
 133                         }
 134                 return (0);     /* we don't know where it is */
 135         }
 136 hithim:
 137         if (rn2(2)) {           /* hit - perhaps steal */
 138
 139                 /*
 140                  * if hit 1/20 chance of stealing amulet & vanish - amulet is
 141                  * on level 26 again.
 142                  */
 143                 if (hitu(mtmp, d(mtmp->data->damn, mtmp->data->damd))
 144                     && !rn2(20) && stealamulet(mtmp)) {
 145                         /* nothing */
 146                 }
 147         } else
 148                 inrange(mtmp);  /* try magic */
 149         return (0);
 150 }
 151
 152 void
 153 inrange(mtmp)
 154         struct monst   *mtmp;
 155 {
 156         schar           tx, ty;
 157
 158         /* do nothing if cancelled (but make '1' say something) */
 159         if (mtmp->data->mlet != '1' && mtmp->mcan)
 160                 return;
 161
 162         /* spit fire only when both in a room or both in a corridor */
 163         if (inroom(u.ux, u.uy) != inroom(mtmp->mx, mtmp->my))
 164                 return;
 165         tx = u.ux - mtmp->mx;
 166         ty = u.uy - mtmp->my;
 167         if ((!tx && abs(ty) < BOLT_LIM) || (!ty && abs(tx) < BOLT_LIM)
 168             || (abs(tx) == abs(ty) && abs(tx) < BOLT_LIM)) {
 169                 switch (mtmp->data->mlet) {
 170                 case 'D':
 171                         /* spit fire in the direction of @ (not nec. hitting) */
 172                         buzz(-1, mtmp->mx, mtmp->my, sgn(tx), sgn(ty));
 173                         break;
 174                 case '1':
 175                         if (rn2(WIZSHOT))
 176                                 break;
 177                         /*
 178                          * if you zapped wizard with wand of cancellation, he
 179                          * has to shake off the effects before he can throw
 180                          * spells successfully.  1/2 the time they fail
 181                          * anyway
 182                          */
 183                         if (mtmp->mcan || rn2(2)) {
 184                                 if (canseemon(mtmp))
 185                                         pline("%s makes a gesture, then curses.",
 186                                               Monnam(mtmp));
 187                                 else
 188                                         pline("You hear mumbled cursing.");
 189                                 if (!rn2(3)) {
 190                                         mtmp->mspeed = 0;
 191                                         mtmp->minvis = 0;
 192                                 }
 193                                 if (!rn2(3))
 194                                         mtmp->mcan = 0;
 195                         } else {
 196                                 if (canseemon(mtmp)) {
 197                                         if (!rn2(6) && !Invis) {
 198                                                 pline("%s hypnotizes you.", Monnam(mtmp));
 199                                                 nomul(rn2(3) + 3);
 200                                                 break;
 201                                         } else
 202                                                 pline("%s chants an incantation.",
 203                                                       Monnam(mtmp));
 204                                 } else
 205                                         pline("You hear a mumbled incantation.");
 206                                 switch (rn2(Invis ? 5 : 6)) {
 207                                 case 0:
 208                                         /*
 209                                          * create a nasty monster from a deep
 210                                          * level
 211                                          */
 212                                         /*
 213                                          * (for the moment, 'nasty' is not
 214                                          * implemented)
 215                                          */
 216                                         (void) makemon((struct permonst *) 0, u.ux, u.uy);
 217                                         break;
 218                                 case 1:
 219                                         pline("\"Destroy the thief, my pets!\"");
 220                                         aggravate();    /* aggravate all the
 221                                                          * monsters */
 222                                         /* fall into next case */
 223                                 case 2:
 224                                         if (flags.no_of_wizards == 1 && rnd(5) == 0)
 225                                                 /*
 226                                                  * if only 1 wizard, clone
 227                                                  * himself
 228                                                  */
 229                                                 clonewiz(mtmp);
 230                                         break;
 231                                 case 3:
 232                                         if (mtmp->mspeed == MSLOW)
 233                                                 mtmp->mspeed = 0;
 234                                         else
 235                                                 mtmp->mspeed = MFAST;
 236                                         break;
 237                                 case 4:
 238                                         mtmp->minvis = 1;
 239                                         break;
 240                                 case 5:
 241                                         /* Only if not Invisible */
 242                                         pline("You hear a clap of thunder!");
 243                                         /*
 244                                          * shoot a bolt of fire or cold, or a
 245                                          * sleep ray
 246                                          */
 247                                         buzz(-rnd(3), mtmp->mx, mtmp->my, sgn(tx), sgn(ty));
 248                                         break;
 249                                 }
 250                         }
 251                 }
 252                 if (u.uhp < 1)
 253                         done_in_by(mtmp);
 254         }
 255 }
 256
 257 void
 258 aggravate()
 259 {
 260         struct monst   *mtmp;
 261
 262         for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
 263                 mtmp->msleep = 0;
 264                 if (mtmp->mfroz && !rn2(5))
 265                         mtmp->mfroz = 0;
 266         }
 267 }
 268
 269 void
 270 clonewiz(mtmp)
 271         struct monst   *mtmp;
 272 {
 273         struct monst   *mtmp2;
 274
 275         if ((mtmp2 = makemon(PM_WIZARD, mtmp->mx, mtmp->my)) != NULL) {
 276                 flags.no_of_wizards = 2;
 277                 unpmon(mtmp2);
 278                 mtmp2->mappearance = wizapp[rn2(sizeof(wizapp) - 1)];
 279                 pmon(mtmp);
 280         }
 281 }