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      1 /*	$NetBSD: hack.apply.c,v 1.13 2011/08/07 06:03:45 dholland 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 (at) 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 1.13 2011/08/07 06:03:45 dholland 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 		/* FALLTHROUGH */
    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, NULL, 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("%s", 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, NULL));
    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 }
    528