games/rogue/ring.c

   1 /*      $NetBSD: ring.c,v 1.8 2008/01/14 00:23:52 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[] = "@(#)ring.c      8.1 (Berkeley) 5/31/93";
  39 #else
  40 __RCSID("$NetBSD: ring.c,v 1.8 2008/01/14 00:23:52 dholland Exp $");
  41 #endif
  42 #endif /* not lint */
  43
  44 /*
  45  * ring.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 const char left_or_right[] = "left or right hand?";
  59 static const char no_ring[] = "there's no ring on that hand";
  60
  61 short stealthy;
  62 short r_rings;
  63 short add_strength;
  64 short e_rings;
  65 short regeneration;
  66 short ring_exp;
  67 short auto_search;
  68 boolean r_teleport;
  69 boolean r_see_invisible;
  70 boolean sustain_strength;
  71 boolean maintain_armor;
  72
  73 void
  74 put_on_ring(void)
  75 {
  76         short ch;
  77         char desc[DCOLS];
  78         object *ring;
  79
  80         if (r_rings == 2) {
  81                 messagef(0, "wearing two rings already");
  82                 return;
  83         }
  84         if ((ch = pack_letter("put on what?", RING)) == CANCEL) {
  85                 return;
  86         }
  87         if (!(ring = get_letter_object(ch))) {
  88                 messagef(0, "no such item.");
  89                 return;
  90         }
  91         if (!(ring->what_is & RING)) {
  92                 messagef(0, "that's not a ring");
  93                 return;
  94         }
  95         if (ring->in_use_flags & (ON_LEFT_HAND | ON_RIGHT_HAND)) {
  96                 messagef(0, "that ring is already being worn");
  97                 return;
  98         }
  99         if (r_rings == 1) {
 100                 ch = (rogue.left_ring ? 'r' : 'l');
 101         } else {
 102                 messagef(0, "%s", left_or_right);
 103                 do {
 104                         ch = rgetchar();
 105                 } while ((ch != CANCEL) && (ch != 'l') && (ch != 'r') && (ch != '\n') &&
 106                                 (ch != '\r'));
 107         }
 108         if ((ch != 'l') && (ch != 'r')) {
 109                 check_message();
 110                 return;
 111         }
 112         if (((ch == 'l') && rogue.left_ring)||((ch == 'r') && rogue.right_ring)) {
 113                 check_message();
 114                 messagef(0, "there's already a ring on that hand");
 115                 return;
 116         }
 117         if (ch == 'l') {
 118                 do_put_on(ring, 1);
 119         } else {
 120                 do_put_on(ring, 0);
 121         }
 122         ring_stats(1);
 123         check_message();
 124         get_desc(ring, desc, sizeof(desc));
 125         messagef(0, "%s", desc);
 126         (void)reg_move();
 127 }
 128
 129 /*
 130  * Do not call ring_stats() from within do_put_on().  It will cause
 131  * serious problems when do_put_on() is called from read_pack() in restore().
 132  */
 133
 134 void
 135 do_put_on(object *ring, boolean on_left)
 136 {
 137         if (on_left) {
 138                 ring->in_use_flags |= ON_LEFT_HAND;
 139                 rogue.left_ring = ring;
 140         } else {
 141                 ring->in_use_flags |= ON_RIGHT_HAND;
 142                 rogue.right_ring = ring;
 143         }
 144 }
 145
 146 void
 147 remove_ring(void)
 148 {
 149         boolean left = 0, right = 0;
 150         short ch;
 151         char buf[DCOLS];
 152         object *ring;
 153
 154         ring = NULL;
 155         if (r_rings == 0) {
 156                 inv_rings();
 157         } else if (rogue.left_ring && !rogue.right_ring) {
 158                 left = 1;
 159         } else if (!rogue.left_ring && rogue.right_ring) {
 160                 right = 1;
 161         } else {
 162                 messagef(0, "%s", left_or_right);
 163                 do {
 164                         ch = rgetchar();
 165                 } while ((ch != CANCEL) && (ch != 'l') && (ch != 'r') &&
 166                         (ch != '\n') && (ch != '\r'));
 167                 left = (ch == 'l');
 168                 right = (ch == 'r');
 169                 check_message();
 170         }
 171         if (left || right) {
 172                 if (left) {
 173                         if (rogue.left_ring) {
 174                                 ring = rogue.left_ring;
 175                         } else {
 176                                 messagef(0, "%s", no_ring);
 177                         }
 178                 } else {
 179                         if (rogue.right_ring) {
 180                                 ring = rogue.right_ring;
 181                         } else {
 182                                 messagef(0, "%s", no_ring);
 183                         }
 184                 }
 185                 if (ring->is_cursed) {
 186                         messagef(0, "%s", curse_message);
 187                 } else {
 188                         un_put_on(ring);
 189                         get_desc(ring, buf, sizeof(buf));
 190                         messagef(0, "removed %s", buf);
 191                         (void)reg_move();
 192                 }
 193         }
 194 }
 195
 196 void
 197 un_put_on(object *ring)
 198 {
 199         if (ring && (ring->in_use_flags & ON_LEFT_HAND)) {
 200                 ring->in_use_flags &= (~ON_LEFT_HAND);
 201                 rogue.left_ring = NULL;
 202         } else if (ring && (ring->in_use_flags & ON_RIGHT_HAND)) {
 203                 ring->in_use_flags &= (~ON_RIGHT_HAND);
 204                 rogue.right_ring = NULL;
 205         }
 206         ring_stats(1);
 207 }
 208
 209 void
 210 gr_ring(object *ring, boolean assign_wk)
 211 {
 212         ring->what_is = RING;
 213         if (assign_wk) {
 214                 ring->which_kind = get_rand(0, (RINGS - 1));
 215         }
 216         ring->class = 0;
 217
 218         switch(ring->which_kind) {
 219         /*
 220         case STEALTH:
 221                 break;
 222         case SLOW_DIGEST:
 223                 break;
 224         case REGENERATION:
 225                 break;
 226         case R_SEE_INVISIBLE:
 227                 break;
 228         case SUSTAIN_STRENGTH:
 229                 break;
 230         case R_MAINTAIN_ARMOR:
 231                 break;
 232         case SEARCHING:
 233                 break;
 234         */
 235         case R_TELEPORT:
 236                 ring->is_cursed = 1;
 237                 break;
 238         case ADD_STRENGTH:
 239         case DEXTERITY:
 240                 while ((ring->class = (get_rand(0, 4) - 2)) == 0)
 241                         ;
 242                 ring->is_cursed = (ring->class < 0);
 243                 break;
 244         case ADORNMENT:
 245                 ring->is_cursed = coin_toss();
 246                 break;
 247         }
 248 }
 249
 250 void
 251 inv_rings(void)
 252 {
 253         char buf[DCOLS];
 254
 255         if (r_rings == 0) {
 256                 messagef(0, "not wearing any rings");
 257         } else {
 258                 if (rogue.left_ring) {
 259                         get_desc(rogue.left_ring, buf, sizeof(buf));
 260                         messagef(0, "%s", buf);
 261                 }
 262                 if (rogue.right_ring) {
 263                         get_desc(rogue.right_ring, buf, sizeof(buf));
 264                         messagef(0, "%s", buf);
 265                 }
 266         }
 267         if (wizard) {
 268                 messagef(0, "ste %d, r_r %d, e_r %d, r_t %d, s_s %d, a_s %d, reg %d, r_e %d, s_i %d, m_a %d, aus %d",
 269                         stealthy, r_rings, e_rings, r_teleport, sustain_strength,
 270                         add_strength, regeneration, ring_exp, r_see_invisible,
 271                         maintain_armor, auto_search);
 272         }
 273 }
 274
 275 void
 276 ring_stats(boolean pr)
 277 {
 278         short i;
 279         object *ring;
 280
 281         stealthy = 0;
 282         r_rings = 0;
 283         e_rings = 0;
 284         r_teleport = 0;
 285         sustain_strength = 0;
 286         add_strength = 0;
 287         regeneration = 0;
 288         ring_exp = 0;
 289         r_see_invisible = 0;
 290         maintain_armor = 0;
 291         auto_search = 0;
 292
 293         for (i = 0; i < 2; i++) {
 294                 if (!(ring = ((i == 0) ? rogue.left_ring : rogue.right_ring))) {
 295                         continue;
 296                 }
 297                 r_rings++;
 298                 e_rings++;
 299                 switch(ring->which_kind) {
 300                 case STEALTH:
 301                         stealthy++;
 302                         break;
 303                 case R_TELEPORT:
 304                         r_teleport = 1;
 305                         break;
 306                 case REGENERATION:
 307                         regeneration++;
 308                         break;
 309                 case SLOW_DIGEST:
 310                         e_rings -= 2;
 311                         break;
 312                 case ADD_STRENGTH:
 313                         add_strength += ring->class;
 314                         break;
 315                 case SUSTAIN_STRENGTH:
 316                         sustain_strength = 1;
 317                         break;
 318                 case DEXTERITY:
 319                         ring_exp += ring->class;
 320                         break;
 321                 case ADORNMENT:
 322                         break;
 323                 case R_SEE_INVISIBLE:
 324                         r_see_invisible = 1;
 325                         break;
 326                 case MAINTAIN_ARMOR:
 327                         maintain_armor = 1;
 328                         break;
 329                 case SEARCHING:
 330                         auto_search += 2;
 331                         break;
 332                 }
 333         }
 334         if (pr) {
 335                 print_stats(STAT_STRENGTH);
 336                 relight();
 337         }
 338 }