games/hack/hack.apply.c

   1 /*      $NetBSD: hack.apply.c,v 1.9 2007/12/15 19:44:41 perry 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.apply.c,v 1.9 2007/12/15 19:44:41 perry Exp $");
  67 #endif                          /* not lint */
  68
  69 #include        "hack.h"
  70 #include        "extern.h"
  71 #include        "def.edog.h"
  72 #include        "def.mkroom.h"
  73
  74 static void use_camera(struct obj *);
  75 static int in_ice_box(struct obj *);
  76 static int ck_ice_box(struct obj *);
  77 static int out_ice_box(struct obj *);
  78 static void use_ice_box(struct obj *);
  79 static struct monst *bchit(int, int , int , int);
  80 static void use_whistle(struct obj *);
  81 static void use_magic_whistle(struct obj *);
  82 static int dig(void);
  83 static int use_pick_axe(struct obj *);
  84
  85 int
  86 doapply(void)
  87 {
  88         struct obj *obj;
  89         int    res = 1;
  90
  91         obj = getobj("(", "use or apply");
  92         if (!obj)
  93                 return (0);
  94
  95         switch (obj->otyp) {
  96         case EXPENSIVE_CAMERA:
  97                 use_camera(obj);
  98                 break;
  99         case ICE_BOX:
 100                 use_ice_box(obj);
 101                 break;
 102         case PICK_AXE:
 103                 res = use_pick_axe(obj);
 104                 break;
 105
 106         case MAGIC_WHISTLE:
 107                 if (pl_character[0] == 'W' || u.ulevel > 9) {
 108                         use_magic_whistle(obj);
 109                         break;
 110                 }
 111                 /* fall into next case */
 112         case WHISTLE:
 113                 use_whistle(obj);
 114                 break;
 115
 116         case CAN_OPENER:
 117                 if (!carrying(TIN)) {
 118                         pline("You have no can to open.");
 119                         goto xit;
 120                 }
 121                 pline("You cannot open a tin without eating its contents.");
 122                 pline("In order to eat, use the 'e' command.");
 123                 if (obj != uwep)
 124                         pline("Opening the tin will be much easier if you wield the can-opener.");
 125                 goto xit;
 126
 127         default:
 128                 pline("Sorry, I don't know how to use that.");
 129 xit:
 130                 nomul(0);
 131                 return (0);
 132         }
 133         nomul(0);
 134         return (res);
 135 }
 136
 137 /* ARGSUSED */
 138 static void
 139 use_camera(struct obj *obj __unused)
 140 {
 141         struct monst *mtmp;
 142         if (!getdir(1)) {       /* ask: in what direction? */
 143                 flags.move = multi = 0;
 144                 return;
 145         }
 146         if (u.uswallow) {
 147                 pline("You take a picture of %s's stomach.", monnam(u.ustuck));
 148                 return;
 149         }
 150         if (u.dz) {
 151                 pline("You take a picture of the %s.",
 152                       (u.dz > 0) ? "floor" : "ceiling");
 153                 return;
 154         }
 155         if ((mtmp = bchit(u.dx, u.dy, COLNO, '!')) != NULL) {
 156                 if (mtmp->msleep) {
 157                         mtmp->msleep = 0;
 158                         pline("The flash awakens %s.", monnam(mtmp));   /* a3 */
 159                 } else if (mtmp->data->mlet != 'y')
 160                         if (mtmp->mcansee || mtmp->mblinded) {
 161                                 int    tmp = dist(mtmp->mx, mtmp->my);
 162                                 int    tmp2;
 163                                 if (cansee(mtmp->mx, mtmp->my))
 164                                         pline("%s is blinded by the flash!", Monnam(mtmp));
 165                                 setmangry(mtmp);
 166                                 if (tmp < 9 && !mtmp->isshk && rn2(4)) {
 167                                         mtmp->mflee = 1;
 168                                         if (rn2(4))
 169                                                 mtmp->mfleetim = rnd(100);
 170                                 }
 171                                 if (tmp < 3)
 172                                         mtmp->mcansee = mtmp->mblinded = 0;
 173                                 else {
 174                                         tmp2 = mtmp->mblinded;
 175                                         tmp2 += rnd(1 + 50 / tmp);
 176                                         if (tmp2 > 127)
 177                                                 tmp2 = 127;
 178                                         mtmp->mblinded = tmp2;
 179                                         mtmp->mcansee = 0;
 180                                 }
 181                         }
 182         }
 183 }
 184
 185 static
 186 struct obj     *current_ice_box;/* a local variable of use_ice_box, to be
 187                                  * used by its local procedures in/ck_ice_box */
 188 static int
 189 in_ice_box(struct obj *obj)
 190 {
 191         if (obj == current_ice_box ||
 192             (Punished && (obj == uball || obj == uchain))) {
 193                 pline("You must be kidding.");
 194                 return (0);
 195         }
 196         if (obj->owornmask & (W_ARMOR | W_RING)) {
 197                 pline("You cannot refrigerate something you are wearing.");
 198                 return (0);
 199         }
 200         if (obj->owt + current_ice_box->owt > 70) {
 201                 pline("It won't fit.");
 202                 return (1);     /* be careful! */
 203         }
 204         if (obj == uwep) {
 205                 if (uwep->cursed) {
 206                         pline("Your weapon is welded to your hand!");
 207                         return (0);
 208                 }
 209                 setuwep((struct obj *) 0);
 210         }
 211         current_ice_box->owt += obj->owt;
 212         freeinv(obj);
 213         obj->o_cnt_id = current_ice_box->o_id;
 214         obj->nobj = fcobj;
 215         fcobj = obj;
 216         obj->age = moves - obj->age;    /* actual age */
 217         return (1);
 218 }
 219
 220 static int
 221 ck_ice_box(struct obj *obj)
 222 {
 223         return (obj->o_cnt_id == current_ice_box->o_id);
 224 }
 225
 226 static int
 227 out_ice_box(struct obj *obj)
 228 {
 229         struct obj *otmp;
 230         if (obj == fcobj)
 231                 fcobj = fcobj->nobj;
 232         else {
 233                 for (otmp = fcobj; otmp->nobj != obj; otmp = otmp->nobj)
 234                         if (!otmp->nobj)
 235                                 panic("out_ice_box");
 236                 otmp->nobj = obj->nobj;
 237         }
 238         current_ice_box->owt -= obj->owt;
 239         obj->age = moves - obj->age;    /* simulated point of time */
 240         (void) addinv(obj);
 241         return 0;
 242 }
 243
 244 static void
 245 use_ice_box(struct obj *obj)
 246 {
 247         int    cnt = 0;
 248         struct obj *otmp;
 249         current_ice_box = obj;  /* for use by in/out_ice_box */
 250         for (otmp = fcobj; otmp; otmp = otmp->nobj)
 251                 if (otmp->o_cnt_id == obj->o_id)
 252                         cnt++;
 253         if (!cnt)
 254                 pline("Your ice-box is empty.");
 255         else {
 256                 pline("Do you want to take something out of the ice-box? [yn] ");
 257                 if (readchar() == 'y')
 258                         if (askchain(fcobj, (char *) 0, 0, out_ice_box, ck_ice_box, 0))
 259                                 return;
 260                 pline("That was all. Do you wish to put something in? [yn] ");
 261                 if (readchar() != 'y')
 262                         return;
 263         }
 264         /* call getobj: 0: allow cnt; #: allow all types; %: expect food */
 265         otmp = getobj("0#%", "put in");
 266         if (!otmp || !in_ice_box(otmp))
 267                 flags.move = multi = 0;
 268 }
 269
 270 static struct monst *
 271 bchit(int ddx, int ddy, int range, int sym)
 272 {
 273         struct monst *mtmp = (struct monst *) 0;
 274         int    bchx = u.ux, bchy = u.uy;
 275
 276         if (sym)
 277                 Tmp_at(-1, sym);/* open call */
 278         while (range--) {
 279                 bchx += ddx;
 280                 bchy += ddy;
 281                 if ((mtmp = m_at(bchx, bchy)) != NULL)
 282                         break;
 283                 if (!ZAP_POS(levl[bchx][bchy].typ)) {
 284                         bchx -= ddx;
 285                         bchy -= ddy;
 286                         break;
 287                 }
 288                 if (sym)
 289                         Tmp_at(bchx, bchy);
 290         }
 291         if (sym)
 292                 Tmp_at(-1, -1);
 293         return (mtmp);
 294 }
 295
 296 /* ARGSUSED */
 297 static void
 298 use_whistle(struct obj *obj __unused)
 299 {
 300         struct monst *mtmp = fmon;
 301         pline("You produce a high whistling sound.");
 302         while (mtmp) {
 303                 if (dist(mtmp->mx, mtmp->my) < u.ulevel * 20) {
 304                         if (mtmp->msleep)
 305                                 mtmp->msleep = 0;
 306                         if (mtmp->mtame)
 307                                 EDOG(mtmp)->whistletime = moves;
 308                 }
 309                 mtmp = mtmp->nmon;
 310         }
 311 }
 312
 313 /* ARGSUSED */
 314 static void
 315 use_magic_whistle(struct obj *obj __unused)
 316 {
 317         struct monst *mtmp = fmon;
 318         pline("You produce a strange whistling sound.");
 319         while (mtmp) {
 320                 if (mtmp->mtame)
 321                         mnexto(mtmp);
 322                 mtmp = mtmp->nmon;
 323         }
 324 }
 325
 326 static int      dig_effort;     /* effort expended on current pos */
 327 static uchar    dig_level;
 328 static coord    dig_pos;
 329 static boolean  dig_down;
 330
 331 static int
 332 dig(void)
 333 {
 334         struct rm *lev;
 335         int dpx = dig_pos.x, dpy = dig_pos.y;
 336
 337         /* perhaps a nymph stole his pick-axe while he was busy digging */
 338         /* or perhaps he teleported away */
 339         if (u.uswallow || !uwep || uwep->otyp != PICK_AXE ||
 340             dig_level != dlevel ||
 341             ((dig_down && (dpx != u.ux || dpy != u.uy)) ||
 342              (!dig_down && dist(dpx, dpy) > 2)))
 343                 return (0);
 344
 345         dig_effort += 10 + abon() + uwep->spe + rn2(5);
 346         if (dig_down) {
 347                 if (!xdnstair) {
 348                         pline("The floor here seems too hard to dig in.");
 349                         return (0);
 350                 }
 351                 if (dig_effort > 250) {
 352                         dighole();
 353                         return (0);     /* done with digging */
 354                 }
 355                 if (dig_effort > 50) {
 356                         struct trap *ttmp = t_at(dpx, dpy);
 357
 358                         if (!ttmp) {
 359                                 ttmp = maketrap(dpx, dpy, PIT);
 360                                 ttmp->tseen = 1;
 361                                 pline("You have dug a pit.");
 362                                 u.utrap = rn1(4, 2);
 363                                 u.utraptype = TT_PIT;
 364                                 return (0);
 365                         }
 366                 }
 367         } else if (dig_effort > 100) {
 368                 const char  *digtxt;
 369                 struct obj *obj;
 370
 371                 lev = &levl[dpx][dpy];
 372                 if ((obj = sobj_at(ENORMOUS_ROCK, dpx, dpy)) != NULL) {
 373                         fracture_rock(obj);
 374                         digtxt = "The rock falls apart.";
 375                 } else if (!lev->typ || lev->typ == SCORR) {
 376                         lev->typ = CORR;
 377                         digtxt = "You succeeded in cutting away some rock.";
 378                 } else if (lev->typ == HWALL || lev->typ == VWALL
 379                            || lev->typ == SDOOR) {
 380                         lev->typ = xdnstair ? DOOR : ROOM;
 381                         digtxt = "You just made an opening in the wall.";
 382                 } else
 383                         digtxt = "Now what exactly was it that you were digging in?";
 384                 mnewsym(dpx, dpy);
 385                 prl(dpx, dpy);
 386                 pline(digtxt);  /* after mnewsym & prl */
 387                 return (0);
 388         } else {
 389                 if (IS_WALL(levl[dpx][dpy].typ)) {
 390                         int    rno = inroom(dpx, dpy);
 391
 392                         if (rno >= 0 && rooms[rno].rtype >= 8) {
 393                                 pline("This wall seems too hard to dig into.");
 394                                 return (0);
 395                         }
 396                 }
 397                 pline("You hit the rock with all your might.");
 398         }
 399         return (1);
 400 }
 401
 402 /* When will hole be finished? Very rough indication used by shopkeeper. */
 403 int
 404 holetime(void)
 405 {
 406         return ((occupation == dig) ? (250 - dig_effort) / 20 : -1);
 407 }
 408
 409 void
 410 dighole(void)
 411 {
 412         struct trap *ttmp = t_at(u.ux, u.uy);
 413
 414         if (!xdnstair) {
 415                 pline("The floor here seems too hard to dig in.");
 416         } else {
 417                 if (ttmp)
 418                         ttmp->ttyp = TRAPDOOR;
 419                 else
 420                         ttmp = maketrap(u.ux, u.uy, TRAPDOOR);
 421                 ttmp->tseen = 1;
 422                 pline("You've made a hole in the floor.");
 423                 if (!u.ustuck) {
 424                         if (inshop())
 425                                 shopdig(1);
 426                         pline("You fall through ...");
 427                         if (u.utraptype == TT_PIT) {
 428                                 u.utrap = 0;
 429                                 u.utraptype = 0;
 430                         }
 431                         goto_level(dlevel + 1, FALSE);
 432                 }
 433         }
 434 }
 435
 436 static int
 437 use_pick_axe(struct obj *obj)
 438 {
 439         char            dirsyms[12];
 440         char  *dsp = dirsyms, *sdp = sdir;
 441         struct monst *mtmp;
 442         struct rm *lev;
 443         int    rx, ry, res = 0;
 444
 445         if (obj != uwep) {
 446                 if (uwep && uwep->cursed) {
 447                         /* Andreas Bormann - ihnp4!decvax!mcvax!unido!ab */
 448                         pline("Since your weapon is welded to your hand,");
 449                         pline("you cannot use that pick-axe.");
 450                         return (0);
 451                 }
 452                 pline("You now wield %s.", doname(obj));
 453                 setuwep(obj);
 454                 res = 1;
 455         }
 456         while (*sdp) {
 457                 (void) movecmd(*sdp);   /* sets u.dx and u.dy and u.dz */
 458                 rx = u.ux + u.dx;
 459                 ry = u.uy + u.dy;
 460                 if (u.dz > 0 || (u.dz == 0 && isok(rx, ry) &&
 461                                  (IS_ROCK(levl[rx][ry].typ)
 462                                   || sobj_at(ENORMOUS_ROCK, rx, ry))))
 463                         *dsp++ = *sdp;
 464                 sdp++;
 465         }
 466         *dsp = 0;
 467         pline("In what direction do you want to dig? [%s] ", dirsyms);
 468         if (!getdir(0))         /* no txt */
 469                 return (res);
 470         if (u.uswallow && attack(u.ustuck))     /* return(1) */
 471                 ;
 472         else if (u.dz < 0)
 473                 pline("You cannot reach the ceiling.");
 474         else if (u.dz == 0) {
 475                 if (Confusion)
 476                         confdir();
 477                 rx = u.ux + u.dx;
 478                 ry = u.uy + u.dy;
 479                 if ((mtmp = m_at(rx, ry)) && attack(mtmp))
 480                         return (1);
 481                 if (!isok(rx, ry)) {
 482                         pline("Clash!");
 483                         return (1);
 484                 }
 485                 lev = &levl[rx][ry];
 486                 if (lev->typ == DOOR)
 487                         pline("Your %s against the door.",
 488                               aobjnam(obj, "clang"));
 489                 else if (!IS_ROCK(lev->typ)
 490                          && !sobj_at(ENORMOUS_ROCK, rx, ry)) {
 491                         /* ACCESSIBLE or POOL */
 492                         pline("You swing your %s through thin air.",
 493                               aobjnam(obj, (char *) 0));
 494                 } else {
 495                         if (dig_pos.x != rx || dig_pos.y != ry
 496                             || dig_level != dlevel || dig_down) {
 497                                 dig_down = FALSE;
 498                                 dig_pos.x = rx;
 499                                 dig_pos.y = ry;
 500                                 dig_level = dlevel;
 501                                 dig_effort = 0;
 502                                 pline("You start digging.");
 503                         } else
 504                                 pline("You continue digging.");
 505                         occupation = dig;
 506                         occtxt = "digging";
 507                 }
 508         } else if (Levitation) {
 509                 pline("You cannot reach the floor.");
 510         } else {
 511                 if (dig_pos.x != u.ux || dig_pos.y != u.uy
 512                     || dig_level != dlevel || !dig_down) {
 513                         dig_down = TRUE;
 514                         dig_pos.x = u.ux;
 515                         dig_pos.y = u.uy;
 516                         dig_level = dlevel;
 517                         dig_effort = 0;
 518                         pline("You start digging in the floor.");
 519                         if (inshop())
 520                                 shopdig(0);
 521                 } else
 522                         pline("You continue digging in the floor.");
 523                 occupation = dig;
 524                 occtxt = "digging";
 525         }
 526         return (1);
 527 }