xref: /netbsd/games/hack/hack.apply.c (revision bf9ec67e)
1 /*	$NetBSD: hack.apply.c,v 1.6 2001/03/25 20:43:59 jsm Exp $	*/
2 
3 /*
4  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
5  */
6 
7 #include <sys/cdefs.h>
8 #ifndef lint
9 __RCSID("$NetBSD: hack.apply.c,v 1.6 2001/03/25 20:43:59 jsm Exp $");
10 #endif				/* not lint */
11 
12 #include	"hack.h"
13 #include	"extern.h"
14 #include	"def.edog.h"
15 #include	"def.mkroom.h"
16 
17 static void use_camera __P((struct obj *));
18 static int in_ice_box __P((struct obj *));
19 static int ck_ice_box __P((struct obj *));
20 static int out_ice_box __P((struct obj *));
21 static void use_ice_box __P((struct obj *));
22 static struct monst *bchit __P((int, int , int , int));
23 static void use_whistle __P((struct obj *));
24 static void use_magic_whistle __P((struct obj *));
25 static int dig __P((void));
26 static int use_pick_axe __P((struct obj *));
27 
28 int
29 doapply()
30 {
31 	struct obj *obj;
32 	int    res = 1;
33 
34 	obj = getobj("(", "use or apply");
35 	if (!obj)
36 		return (0);
37 
38 	switch (obj->otyp) {
39 	case EXPENSIVE_CAMERA:
40 		use_camera(obj);
41 		break;
42 	case ICE_BOX:
43 		use_ice_box(obj);
44 		break;
45 	case PICK_AXE:
46 		res = use_pick_axe(obj);
47 		break;
48 
49 	case MAGIC_WHISTLE:
50 		if (pl_character[0] == 'W' || u.ulevel > 9) {
51 			use_magic_whistle(obj);
52 			break;
53 		}
54 		/* fall into next case */
55 	case WHISTLE:
56 		use_whistle(obj);
57 		break;
58 
59 	case CAN_OPENER:
60 		if (!carrying(TIN)) {
61 			pline("You have no can to open.");
62 			goto xit;
63 		}
64 		pline("You cannot open a tin without eating its contents.");
65 		pline("In order to eat, use the 'e' command.");
66 		if (obj != uwep)
67 			pline("Opening the tin will be much easier if you wield the can-opener.");
68 		goto xit;
69 
70 	default:
71 		pline("Sorry, I don't know how to use that.");
72 xit:
73 		nomul(0);
74 		return (0);
75 	}
76 	nomul(0);
77 	return (res);
78 }
79 
80 /* ARGSUSED */
81 static void
82 use_camera(obj) /* */
83 	struct obj     *obj __attribute__((__unused__));
84 {
85 	struct monst *mtmp;
86 	if (!getdir(1)) {	/* ask: in what direction? */
87 		flags.move = multi = 0;
88 		return;
89 	}
90 	if (u.uswallow) {
91 		pline("You take a picture of %s's stomach.", monnam(u.ustuck));
92 		return;
93 	}
94 	if (u.dz) {
95 		pline("You take a picture of the %s.",
96 		      (u.dz > 0) ? "floor" : "ceiling");
97 		return;
98 	}
99 	if ((mtmp = bchit(u.dx, u.dy, COLNO, '!')) != NULL) {
100 		if (mtmp->msleep) {
101 			mtmp->msleep = 0;
102 			pline("The flash awakens %s.", monnam(mtmp));	/* a3 */
103 		} else if (mtmp->data->mlet != 'y')
104 			if (mtmp->mcansee || mtmp->mblinded) {
105 				int    tmp = dist(mtmp->mx, mtmp->my);
106 				int    tmp2;
107 				if (cansee(mtmp->mx, mtmp->my))
108 					pline("%s is blinded by the flash!", Monnam(mtmp));
109 				setmangry(mtmp);
110 				if (tmp < 9 && !mtmp->isshk && rn2(4)) {
111 					mtmp->mflee = 1;
112 					if (rn2(4))
113 						mtmp->mfleetim = rnd(100);
114 				}
115 				if (tmp < 3)
116 					mtmp->mcansee = mtmp->mblinded = 0;
117 				else {
118 					tmp2 = mtmp->mblinded;
119 					tmp2 += rnd(1 + 50 / tmp);
120 					if (tmp2 > 127)
121 						tmp2 = 127;
122 					mtmp->mblinded = tmp2;
123 					mtmp->mcansee = 0;
124 				}
125 			}
126 	}
127 }
128 
129 static
130 struct obj     *current_ice_box;/* a local variable of use_ice_box, to be
131 				 * used by its local procedures in/ck_ice_box */
132 static int
133 in_ice_box(obj)
134 	struct obj *obj;
135 {
136 	if (obj == current_ice_box ||
137 	    (Punished && (obj == uball || obj == uchain))) {
138 		pline("You must be kidding.");
139 		return (0);
140 	}
141 	if (obj->owornmask & (W_ARMOR | W_RING)) {
142 		pline("You cannot refrigerate something you are wearing.");
143 		return (0);
144 	}
145 	if (obj->owt + current_ice_box->owt > 70) {
146 		pline("It won't fit.");
147 		return (1);	/* be careful! */
148 	}
149 	if (obj == uwep) {
150 		if (uwep->cursed) {
151 			pline("Your weapon is welded to your hand!");
152 			return (0);
153 		}
154 		setuwep((struct obj *) 0);
155 	}
156 	current_ice_box->owt += obj->owt;
157 	freeinv(obj);
158 	obj->o_cnt_id = current_ice_box->o_id;
159 	obj->nobj = fcobj;
160 	fcobj = obj;
161 	obj->age = moves - obj->age;	/* actual age */
162 	return (1);
163 }
164 
165 static int
166 ck_ice_box(obj)
167 	struct obj *obj;
168 {
169 	return (obj->o_cnt_id == current_ice_box->o_id);
170 }
171 
172 static int
173 out_ice_box(obj)
174 	struct obj *obj;
175 {
176 	struct obj *otmp;
177 	if (obj == fcobj)
178 		fcobj = fcobj->nobj;
179 	else {
180 		for (otmp = fcobj; otmp->nobj != obj; otmp = otmp->nobj)
181 			if (!otmp->nobj)
182 				panic("out_ice_box");
183 		otmp->nobj = obj->nobj;
184 	}
185 	current_ice_box->owt -= obj->owt;
186 	obj->age = moves - obj->age;	/* simulated point of time */
187 	(void) addinv(obj);
188 	return 0;
189 }
190 
191 static void
192 use_ice_box(obj)
193 	struct obj *obj;
194 {
195 	int    cnt = 0;
196 	struct obj *otmp;
197 	current_ice_box = obj;	/* for use by in/out_ice_box */
198 	for (otmp = fcobj; otmp; otmp = otmp->nobj)
199 		if (otmp->o_cnt_id == obj->o_id)
200 			cnt++;
201 	if (!cnt)
202 		pline("Your ice-box is empty.");
203 	else {
204 		pline("Do you want to take something out of the ice-box? [yn] ");
205 		if (readchar() == 'y')
206 			if (askchain(fcobj, (char *) 0, 0, out_ice_box, ck_ice_box, 0))
207 				return;
208 		pline("That was all. Do you wish to put something in? [yn] ");
209 		if (readchar() != 'y')
210 			return;
211 	}
212 	/* call getobj: 0: allow cnt; #: allow all types; %: expect food */
213 	otmp = getobj("0#%", "put in");
214 	if (!otmp || !in_ice_box(otmp))
215 		flags.move = multi = 0;
216 }
217 
218 static struct monst *
219 bchit(ddx, ddy, range, sym)
220 	int    ddx, ddy, range;
221 	char            sym;
222 {
223 	struct monst *mtmp = (struct monst *) 0;
224 	int    bchx = u.ux, bchy = u.uy;
225 
226 	if (sym)
227 		Tmp_at(-1, sym);/* open call */
228 	while (range--) {
229 		bchx += ddx;
230 		bchy += ddy;
231 		if ((mtmp = m_at(bchx, bchy)) != NULL)
232 			break;
233 		if (!ZAP_POS(levl[bchx][bchy].typ)) {
234 			bchx -= ddx;
235 			bchy -= ddy;
236 			break;
237 		}
238 		if (sym)
239 			Tmp_at(bchx, bchy);
240 	}
241 	if (sym)
242 		Tmp_at(-1, -1);
243 	return (mtmp);
244 }
245 
246 /* ARGSUSED */
247 static void
248 use_whistle(obj)
249 	struct obj     *obj __attribute__((__unused__));
250 {
251 	struct monst *mtmp = fmon;
252 	pline("You produce a high whistling sound.");
253 	while (mtmp) {
254 		if (dist(mtmp->mx, mtmp->my) < u.ulevel * 20) {
255 			if (mtmp->msleep)
256 				mtmp->msleep = 0;
257 			if (mtmp->mtame)
258 				EDOG(mtmp)->whistletime = moves;
259 		}
260 		mtmp = mtmp->nmon;
261 	}
262 }
263 
264 /* ARGSUSED */
265 static void
266 use_magic_whistle(obj)
267 	struct obj     *obj __attribute__((__unused__));
268 {
269 	struct monst *mtmp = fmon;
270 	pline("You produce a strange whistling sound.");
271 	while (mtmp) {
272 		if (mtmp->mtame)
273 			mnexto(mtmp);
274 		mtmp = mtmp->nmon;
275 	}
276 }
277 
278 static int      dig_effort;	/* effort expended on current pos */
279 static uchar    dig_level;
280 static coord    dig_pos;
281 static boolean  dig_down;
282 
283 static int
284 dig()
285 {
286 	struct rm *lev;
287 	int dpx = dig_pos.x, dpy = dig_pos.y;
288 
289 	/* perhaps a nymph stole his pick-axe while he was busy digging */
290 	/* or perhaps he teleported away */
291 	if (u.uswallow || !uwep || uwep->otyp != PICK_AXE ||
292 	    dig_level != dlevel ||
293 	    ((dig_down && (dpx != u.ux || dpy != u.uy)) ||
294 	     (!dig_down && dist(dpx, dpy) > 2)))
295 		return (0);
296 
297 	dig_effort += 10 + abon() + uwep->spe + rn2(5);
298 	if (dig_down) {
299 		if (!xdnstair) {
300 			pline("The floor here seems too hard to dig in.");
301 			return (0);
302 		}
303 		if (dig_effort > 250) {
304 			dighole();
305 			return (0);	/* done with digging */
306 		}
307 		if (dig_effort > 50) {
308 			struct trap *ttmp = t_at(dpx, dpy);
309 
310 			if (!ttmp) {
311 				ttmp = maketrap(dpx, dpy, PIT);
312 				ttmp->tseen = 1;
313 				pline("You have dug a pit.");
314 				u.utrap = rn1(4, 2);
315 				u.utraptype = TT_PIT;
316 				return (0);
317 			}
318 		}
319 	} else if (dig_effort > 100) {
320 		const char  *digtxt;
321 		struct obj *obj;
322 
323 		lev = &levl[dpx][dpy];
324 		if ((obj = sobj_at(ENORMOUS_ROCK, dpx, dpy)) != NULL) {
325 			fracture_rock(obj);
326 			digtxt = "The rock falls apart.";
327 		} else if (!lev->typ || lev->typ == SCORR) {
328 			lev->typ = CORR;
329 			digtxt = "You succeeded in cutting away some rock.";
330 		} else if (lev->typ == HWALL || lev->typ == VWALL
331 			   || lev->typ == SDOOR) {
332 			lev->typ = xdnstair ? DOOR : ROOM;
333 			digtxt = "You just made an opening in the wall.";
334 		} else
335 			digtxt = "Now what exactly was it that you were digging in?";
336 		mnewsym(dpx, dpy);
337 		prl(dpx, dpy);
338 		pline(digtxt);	/* after mnewsym & prl */
339 		return (0);
340 	} else {
341 		if (IS_WALL(levl[dpx][dpy].typ)) {
342 			int    rno = inroom(dpx, dpy);
343 
344 			if (rno >= 0 && rooms[rno].rtype >= 8) {
345 				pline("This wall seems too hard to dig into.");
346 				return (0);
347 			}
348 		}
349 		pline("You hit the rock with all your might.");
350 	}
351 	return (1);
352 }
353 
354 /* When will hole be finished? Very rough indication used by shopkeeper. */
355 int
356 holetime()
357 {
358 	return ((occupation == dig) ? (250 - dig_effort) / 20 : -1);
359 }
360 
361 void
362 dighole()
363 {
364 	struct trap *ttmp = t_at(u.ux, u.uy);
365 
366 	if (!xdnstair) {
367 		pline("The floor here seems too hard to dig in.");
368 	} else {
369 		if (ttmp)
370 			ttmp->ttyp = TRAPDOOR;
371 		else
372 			ttmp = maketrap(u.ux, u.uy, TRAPDOOR);
373 		ttmp->tseen = 1;
374 		pline("You've made a hole in the floor.");
375 		if (!u.ustuck) {
376 			if (inshop())
377 				shopdig(1);
378 			pline("You fall through ...");
379 			if (u.utraptype == TT_PIT) {
380 				u.utrap = 0;
381 				u.utraptype = 0;
382 			}
383 			goto_level(dlevel + 1, FALSE);
384 		}
385 	}
386 }
387 
388 static int
389 use_pick_axe(obj)
390 	struct obj     *obj;
391 {
392 	char            dirsyms[12];
393 	char  *dsp = dirsyms, *sdp = sdir;
394 	struct monst *mtmp;
395 	struct rm *lev;
396 	int    rx, ry, res = 0;
397 
398 	if (obj != uwep) {
399 		if (uwep && uwep->cursed) {
400 			/* Andreas Bormann - ihnp4!decvax!mcvax!unido!ab */
401 			pline("Since your weapon is welded to your hand,");
402 			pline("you cannot use that pick-axe.");
403 			return (0);
404 		}
405 		pline("You now wield %s.", doname(obj));
406 		setuwep(obj);
407 		res = 1;
408 	}
409 	while (*sdp) {
410 		(void) movecmd(*sdp);	/* sets u.dx and u.dy and u.dz */
411 		rx = u.ux + u.dx;
412 		ry = u.uy + u.dy;
413 		if (u.dz > 0 || (u.dz == 0 && isok(rx, ry) &&
414 				 (IS_ROCK(levl[rx][ry].typ)
415 				  || sobj_at(ENORMOUS_ROCK, rx, ry))))
416 			*dsp++ = *sdp;
417 		sdp++;
418 	}
419 	*dsp = 0;
420 	pline("In what direction do you want to dig? [%s] ", dirsyms);
421 	if (!getdir(0))		/* no txt */
422 		return (res);
423 	if (u.uswallow && attack(u.ustuck))	/* return(1) */
424 		;
425 	else if (u.dz < 0)
426 		pline("You cannot reach the ceiling.");
427 	else if (u.dz == 0) {
428 		if (Confusion)
429 			confdir();
430 		rx = u.ux + u.dx;
431 		ry = u.uy + u.dy;
432 		if ((mtmp = m_at(rx, ry)) && attack(mtmp))
433 			return (1);
434 		if (!isok(rx, ry)) {
435 			pline("Clash!");
436 			return (1);
437 		}
438 		lev = &levl[rx][ry];
439 		if (lev->typ == DOOR)
440 			pline("Your %s against the door.",
441 			      aobjnam(obj, "clang"));
442 		else if (!IS_ROCK(lev->typ)
443 			 && !sobj_at(ENORMOUS_ROCK, rx, ry)) {
444 			/* ACCESSIBLE or POOL */
445 			pline("You swing your %s through thin air.",
446 			      aobjnam(obj, (char *) 0));
447 		} else {
448 			if (dig_pos.x != rx || dig_pos.y != ry
449 			    || dig_level != dlevel || dig_down) {
450 				dig_down = FALSE;
451 				dig_pos.x = rx;
452 				dig_pos.y = ry;
453 				dig_level = dlevel;
454 				dig_effort = 0;
455 				pline("You start digging.");
456 			} else
457 				pline("You continue digging.");
458 			occupation = dig;
459 			occtxt = "digging";
460 		}
461 	} else if (Levitation) {
462 		pline("You cannot reach the floor.");
463 	} else {
464 		if (dig_pos.x != u.ux || dig_pos.y != u.uy
465 		    || dig_level != dlevel || !dig_down) {
466 			dig_down = TRUE;
467 			dig_pos.x = u.ux;
468 			dig_pos.y = u.uy;
469 			dig_level = dlevel;
470 			dig_effort = 0;
471 			pline("You start digging in the floor.");
472 			if (inshop())
473 				shopdig(0);
474 		} else
475 			pline("You continue digging in the floor.");
476 		occupation = dig;
477 		occtxt = "digging";
478 	}
479 	return (1);
480 }
481