aboutsummaryrefslogtreecommitdiff
path: root/hack/hack.invent.c
blob: bae4b7544d612cad5972e336c2e822e278c20227 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.invent.c - version 1.0.3 */
/* $FreeBSD: src/games/hack/hack.invent.c,v 1.4 1999/11/16 10:26:36 marcel Exp $ */

#include "hack.h"
extern struct obj zeroobj;
extern char quitchars[];

static void		 assigninvlet(struct obj *);
static struct obj	*mkgoldobj(long);
static bool		 ckunpaid(struct obj *);
static char		 obj_to_let(struct obj *);
static char		*xprname(struct obj *, char);
static void		 doinv(char *);
static bool		 merged(struct obj *, struct obj *, bool);
static bool		 countgold(void);

#ifndef NOWORM
extern struct wseg *wsegs[32];
#endif /* NOWORM */

#define	NOINVSYM	'#'

static int lastinvnr = 51;	/* 0 ... 51 */

static void
assigninvlet(struct obj *otmp)
{
	boolean inuse[52];
	int i;
	struct obj *obj;

	for (i = 0; i < 52; i++)
		inuse[i] = FALSE;
	for (obj = invent; obj; obj = obj->nobj)
		if (obj != otmp) {
			i = obj->invlet;
			if ('a' <= i && i <= 'z')
				inuse[i - 'a'] = TRUE;
			else if ('A' <= i && i <= 'Z')
				inuse[i - 'A' + 26] = TRUE;
			if (i == otmp->invlet)
				otmp->invlet = 0;
		}
	if ((i = otmp->invlet) &&
	    (('a' <= i && i <= 'z') || ('A' <= i && i <= 'Z')))
		return;
	for (i = lastinvnr + 1; i != lastinvnr; i++) {
		if (i == 52) {
			i = -1;
			continue;
		}
		if (!inuse[i])
			break;
	}
	otmp->invlet = (inuse[i] ? NOINVSYM :
			(i < 26) ? ('a' + i) : ('A' + i - 26));
	lastinvnr = i;
}

struct obj *
addinv(struct obj *obj)
{
	struct obj *otmp;

	/* merge or attach to end of chain */
	if (!invent) {
		invent = obj;
		otmp = NULL;
	} else
		for (otmp = invent; /* otmp */; otmp = otmp->nobj) {
			if (merged(otmp, obj, 0))
				return (otmp);
			if (!otmp->nobj) {
				otmp->nobj = obj;
				break;
			}
		}
	obj->nobj = 0;

	if (flags.invlet_constant) {
		assigninvlet(obj);
		/*
		 * The ordering of the chain is nowhere significant
		 * so in case you prefer some other order than the
		 * historical one, change the code below.
		 */
		if (otmp) {	/* find proper place in chain */
			otmp->nobj = 0;
			if ((invent->invlet ^ 040) > (obj->invlet ^ 040)) {
				obj->nobj = invent;
				invent = obj;
			} else
				for (otmp = invent;; otmp = otmp->nobj) {
					if (!otmp->nobj ||
					    (otmp->nobj->invlet ^ 040) >
					    (obj->invlet ^ 040)) {
						obj->nobj = otmp->nobj;
						otmp->nobj = obj;
						break;
					}
				}
		}
	}

	return (obj);
}

void
useup(struct obj *obj)
{
	if (obj->quan > 1) {
		obj->quan--;
		obj->owt = weight(obj);
	} else {
		setnotworn(obj);
		freeinv(obj);
		obfree(obj, NULL);
	}
}

void
freeinv(struct obj *obj)
{
	struct obj *otmp;

	if (obj == invent)
		invent = invent->nobj;
	else {
		for (otmp = invent; otmp->nobj != obj; otmp = otmp->nobj)
			if (!otmp->nobj)
				panic("freeinv");
		otmp->nobj = obj->nobj;
	}
}

/* destroy object in fobj chain (if unpaid, it remains on the bill) */
void
delobj(struct obj *obj)
{
	freeobj(obj);
	unpobj(obj);
	obfree(obj, NULL);
}

/* unlink obj from chain starting with fobj */
void
freeobj(struct obj *obj)
{
	struct obj *otmp;

	if (obj == fobj)
		fobj = fobj->nobj;
	else {
		for (otmp = fobj; otmp->nobj != obj; otmp = otmp->nobj)
			if (!otmp)
				panic("error in freeobj");
		otmp->nobj = obj->nobj;
	}
}

/* Note: freegold throws away its argument! */
void
freegold(struct gold *gold)
{
	struct gold *gtmp;

	if (gold == fgold)
		fgold = gold->ngold;
	else {
		for (gtmp = fgold; gtmp->ngold != gold; gtmp = gtmp->ngold)
			if (!gtmp)
				panic("error in freegold");
		gtmp->ngold = gold->ngold;
	}
	free(gold);
}

void
deltrap(struct trap *trap)
{
	struct trap *ttmp;

	if (trap == ftrap)
		ftrap = ftrap->ntrap;
	else {
		for (ttmp = ftrap; ttmp->ntrap != trap; ttmp = ttmp->ntrap)
			; /* nothing */
		ttmp->ntrap = trap->ntrap;
	}
	free(trap);
}

struct wseg *m_atseg;

struct monst *
m_at(int x, int y)
{
	struct monst *mtmp;
#ifndef NOWORM
	struct wseg *wtmp;
#endif /* NOWORM */

	m_atseg = NULL;
	for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
		if (mtmp->mx == x && mtmp->my == y)
			return (mtmp);
#ifndef NOWORM
		if (mtmp->wormno) {
			for (wtmp = wsegs[mtmp->wormno]; wtmp; wtmp = wtmp->nseg)
				if (wtmp->wx == x && wtmp->wy == y) {
					m_atseg = wtmp;
					return (mtmp);
				}
		}

#endif /* NOWORM */
	}
	return (0);
}

struct obj *
o_at(int x, int y)
{
	struct obj *otmp;

	for (otmp = fobj; otmp; otmp = otmp->nobj)
		if (otmp->ox == x && otmp->oy == y)
			return (otmp);
	return (0);
}

struct obj *
sobj_at(int n, int x, int y)
{
	struct obj *otmp;

	for (otmp = fobj; otmp; otmp = otmp->nobj)
		if (otmp->ox == x && otmp->oy == y && otmp->otyp == n)
			return (otmp);
	return (0);
}

bool
carried(struct obj *obj)
{
	struct obj *otmp;

	for (otmp = invent; otmp; otmp = otmp->nobj)
		if (otmp == obj)
			return (1);
	return (0);
}

bool
carrying(int type)
{
	struct obj *otmp;

	for (otmp = invent; otmp; otmp = otmp->nobj)
		if (otmp->otyp == type)
			return (TRUE);
	return (FALSE);
}

struct obj *
o_on(unsigned int id, struct obj *objchn)
{
	while (objchn) {
		if (objchn->o_id == id)
			return (objchn);
		objchn = objchn->nobj;
	}
	return (NULL);
}

struct trap *
t_at(int x, int y)
{
	struct trap *trap = ftrap;

	while (trap) {
		if (trap->tx == x && trap->ty == y)
			return (trap);
		trap = trap->ntrap;
	}
	return (0);
}

struct gold *
g_at(int x, int y)
{
	struct gold *gold = fgold;

	while (gold) {
		if (gold->gx == x && gold->gy == y)
			return (gold);
		gold = gold->ngold;
	}
	return (0);
}

/* make dummy object structure containing gold - for temporary use only */
static struct obj *
mkgoldobj(long q)
{
	struct obj *otmp;

	otmp = newobj(0);
	/* should set o_id etc. but otmp will be freed soon */
	otmp->olet = '$';
	u.ugold -= q;
	OGOLD(otmp) = q;
	flags.botl = 1;
	return (otmp);
}

/*
 * getobj returns:
 *	struct obj *xxx:	object to do something with.
 *	NULL			error return: no object.
 *	&zeroobj		explicitly no object (as in w-).
 */
struct obj *
getobj(const char *let, const char *word)
{
	struct obj *otmp;
	char ilet, ilet1, ilet2;
	char buf[BUFSZ];
	char lets[BUFSZ];
	int foo = 0, foo2;
	char *bp = buf;
	xchar allowcnt = 0;	/* 0, 1 or 2 */
	boolean allowgold = FALSE;
	boolean allowall = FALSE;
	boolean allownone = FALSE;
	xchar foox = 0;
	long cnt;

	if (*let == '0')
		let++, allowcnt = 1;
	if (*let == '$')
		let++, allowgold = TRUE;
	if (*let == '#')
		let++, allowall = TRUE;
	if (*let == '-')
		let++, allownone = TRUE;
	if (allownone)
		*bp++ = '-';
	if (allowgold)
		*bp++ = '$';
	if (bp > buf && bp[-1] == '-')
		*bp++ = ' ';

	ilet = 'a';
	for (otmp = invent; otmp; otmp = otmp->nobj) {
		if (!*let || strchr(let, otmp->olet)) {
			bp[foo++] = flags.invlet_constant ? otmp->invlet : ilet;

			/* ugly check: remove inappropriate things */
			if ((!strcmp(word, "take off") &&
			     !(otmp->owornmask & (W_ARMOR - W_ARM2)))
			    || (!strcmp(word, "wear") &&
				(otmp->owornmask & (W_ARMOR | W_RING)))
			    || (!strcmp(word, "wield") &&
				(otmp->owornmask & W_WEP))) {
				foo--;
				foox++;
			}
		}
		if (ilet == 'z')
			ilet = 'A';
		else
			ilet++;
	}
	bp[foo] = 0;
	if (foo == 0 && bp > buf && bp[-1] == ' ')
		*--bp = 0;
	strcpy(lets, bp);	/* necessary since we destroy buf */
	if (foo > 5) {		/* compactify string */
		foo = foo2 = 1;
		ilet2 = bp[0];
		ilet1 = bp[1];
		while ((ilet = bp[++foo2] = bp[++foo])) {
			if (ilet == ilet1 + 1) {
				if (ilet1 == ilet2 + 1)
					bp[foo2 - 1] = ilet1 = '-';
				else if (ilet2 == '-') {
					bp[--foo2] = ++ilet1;
					continue;
				}
			}
			ilet2 = ilet1;
			ilet1 = ilet;
		}
	}
	if (!foo && !allowall && !allowgold && !allownone) {
		pline("You don't have anything %sto %s.",
		      foox ? "else " : "", word);
		return (0);
	}
	for (;;) {
		if (!buf[0])
			pline("What do you want to %s [*]? ", word);
		else
			pline("What do you want to %s [%s or ?*]? ",
			      word, buf);

		cnt = 0;
		ilet = readchar();
		while (digit(ilet) && allowcnt) {
			if (cnt < 100000000)
				cnt = 10 * cnt + (ilet - '0');
			else
				cnt = 999999999;
			allowcnt = 2;	/* signal presence of cnt */
			ilet = readchar();
		}
		if (digit(ilet)) {
			pline("No count allowed with this command.");
			continue;
		}
		if (strchr(quitchars, ilet))
			return (NULL);
		if (ilet == '-')
			return (allownone ? &zeroobj : NULL);
		if (ilet == '$') {
			if (!allowgold) {
				pline("You cannot %s gold.", word);
				continue;
			}
			if (!(allowcnt == 2 && cnt < u.ugold))
				cnt = u.ugold;
			return (mkgoldobj(cnt));
		}
		if (ilet == '?') {
			doinv(lets);
			if (!(ilet = morc))
				continue;
			/* he typed a letter (not a space) to more() */
		} else if (ilet == '*') {
			doinv(NULL);
			if (!(ilet = morc))
				continue;
			/* ... */
		}
		if (flags.invlet_constant) {
			for (otmp = invent; otmp; otmp = otmp->nobj)
				if (otmp->invlet == ilet)
					break;
		} else {
			if (ilet >= 'A' && ilet <= 'Z')
				ilet += 'z' - 'A' + 1;
			ilet -= 'a';
			for (otmp = invent; otmp && ilet;
			     ilet--, otmp = otmp->nobj)
				; /* nothing */
		}
		if (!otmp) {
			pline("You don't have that object.");
			continue;
		}
		if (cnt < 0 || otmp->quan < cnt) {
			pline("You don't have that many! [You have %u]" ,
			    otmp->quan);
			continue;
		}
		break;
	}
	if (!allowall && let && !strchr(let, otmp->olet)) {
		pline("That is a silly thing to %s.", word);
		return (0);
	}
	if (allowcnt == 2) {	/* cnt given */
		if (cnt == 0)
			return (0);
		if (cnt != otmp->quan) {
			struct obj *obj;
			obj = splitobj(otmp, (int)cnt);
			if (otmp == uwep)
				setuwep(obj);
		}
	}
	return (otmp);
}

static bool
ckunpaid(struct obj *otmp)
{
	return (otmp->unpaid);
}

/* interactive version of getobj - used for Drop and Identify */
/* return the number of times fn was called successfully */
int
ggetobj(const char *word, int (*fn)(struct obj *), int max)
{
	char buf[BUFSZ];
	char *ip;
	char sym;
	int oletct = 0, iletct = 0;
	boolean allflag = FALSE;
	char olets[20], ilets[20];
	bool (*ckfn)(struct obj *) = (bool (*)()) 0;
	xchar allowgold = (u.ugold && !strcmp(word, "drop")) ? 1 : 0; /* BAH */

	if (!invent && !allowgold) {
		pline("You have nothing to %s.", word);
		return (0);
	} else {
		struct obj *otmp = invent;
		int uflg = 0;

		if (allowgold)
			ilets[iletct++] = '$';
		ilets[iletct] = 0;
		while (otmp) {
			if (!strchr(ilets, otmp->olet)) {
				ilets[iletct++] = otmp->olet;
				ilets[iletct] = 0;
			}
			if (otmp->unpaid)
				uflg = 1;
			otmp = otmp->nobj;
		}
		ilets[iletct++] = ' ';
		if (uflg)
			ilets[iletct++] = 'u';
		if (invent)
			ilets[iletct++] = 'a';
		ilets[iletct] = 0;
	}
	pline("What kinds of thing do you want to %s? [%s] ",
	      word, ilets);
	getlin(buf);
	if (buf[0] == '\033') {
		clrlin();
		return (0);
	}
	ip = buf;
	olets[0] = 0;
	while ((sym = *ip++)) {
		if (sym == ' ')
			continue;
		if (sym == '$') {
			if (allowgold == 1)
				(*fn)(mkgoldobj(u.ugold));
			else if (!u.ugold)
				pline("You have no gold.");
			allowgold = 2;
		} else if (sym == 'a' || sym == 'A')
			allflag = TRUE;
		else if (sym == 'u' || sym == 'U')
			ckfn = ckunpaid;
		else if (strchr("!%?[()=*/\"0", sym)) {
			if (!strchr(olets, sym)) {
				olets[oletct++] = sym;
				olets[oletct] = 0;
			}
		} else
			pline("You don't have any %c's.", sym);
	}
	if (allowgold == 2 && !oletct)
		return (1);	/* he dropped gold (or at least tried to) */
	else
		return (askchain(invent, olets, allflag, fn, ckfn, max));
}

/*
 * Walk through the chain starting at objchn and ask for all objects
 * with olet in olets (if nonNULL) and satisfying ckfn (if nonNULL)
 * whether the action in question (i.e., fn) has to be performed.
 * If allflag then no questions are asked. Max gives the max nr of
 * objects to be treated. Return the number of objects treated.
 */
int
askchain(struct obj *objchn, char *olets, int allflag,
	int (*fn)(struct obj *), bool (*ckfn)(struct obj *), int max)
{
	struct obj *otmp, *otmp2;
	char sym, ilet;
	int cnt = 0;

	ilet = 'a' - 1;
	for (otmp = objchn; otmp; otmp = otmp2) {
		if (ilet == 'z')
			ilet = 'A';
		else
			ilet++;
		otmp2 = otmp->nobj;
		if (olets && *olets && !strchr(olets, otmp->olet))
			continue;
		if (ckfn && !(*ckfn)(otmp))
			continue;
		if (!allflag) {
			pline("%s", xprname(otmp, ilet));
			addtopl(" [nyaq]? ");
			sym = readchar();
		} else
			sym = 'y';

		switch (sym) {
		case 'a':
			allflag = 1;
		case 'y':
			cnt += (*fn)(otmp);
			if (--max == 0)
				goto ret;
		case 'n':
		default:
			break;
		case 'q':
			goto ret;
		}
	}
	pline(cnt ? "That was all." : "No applicable objects.");
ret:
	return (cnt);
}

/* should of course only be called for things in invent */
static char
obj_to_let(struct obj *obj)
{
	struct obj *otmp;
	char ilet;

	if (flags.invlet_constant)
		return (obj->invlet);
	ilet = 'a';
	for (otmp = invent; otmp && otmp != obj; otmp = otmp->nobj)
		if (++ilet > 'z')
			ilet = 'A';
	return (otmp ? ilet : NOINVSYM);
}

void
prinv(struct obj *obj)
{
	pline("%s", xprname(obj, obj_to_let(obj)));
}

static char *
xprname(struct obj *obj, char let)
{
	static char li[BUFSZ];

	sprintf(li, "%c - %s.",
		flags.invlet_constant ? obj->invlet : let,
		doname(obj));
	return (li);
}

int
ddoinv(void)
{
	doinv(NULL);
	return (0);
}

/* called with 0 or "": all objects in inventory */
/* otherwise: all objects with (serial) letter in lets */
static void
doinv(char *lets)
{
	struct obj *otmp;
	char ilet;
	int ct = 0;
	char any[BUFSZ];

	morc = 0;		/* just to be sure */
	if (!invent) {
		pline("Not carrying anything.");
		return;
	}

	cornline(0, NULL);
	ilet = 'a';
	for (otmp = invent; otmp; otmp = otmp->nobj) {
		if (flags.invlet_constant)
			ilet = otmp->invlet;
		if (!lets || !*lets || strchr(lets, ilet)) {
			cornline(1, xprname(otmp, ilet));
			any[ct++] = ilet;
		}
		if (!flags.invlet_constant)
			if (++ilet > 'z')
				ilet = 'A';
	}
	any[ct] = 0;
	cornline(2, any);
}

int
dotypeinv(void)				/* free after Robert Viduya */
{
	/* Changed to one type only, so he doesnt have to type cr */
	char c, ilet;
	char stuff[BUFSZ];
	int stct;
	struct obj *otmp;
	boolean billx = inshop() && doinvbill(0);
	boolean unpd = FALSE;

	if (!invent && !u.ugold && !billx) {
		pline("You aren't carrying anything.");
		return (0);
	}

	stct = 0;
	if (u.ugold)
		stuff[stct++] = '$';
	stuff[stct] = 0;
	for (otmp = invent; otmp; otmp = otmp->nobj) {
		if (!strchr(stuff, otmp->olet)) {
			stuff[stct++] = otmp->olet;
			stuff[stct] = 0;
		}
		if (otmp->unpaid)
			unpd = TRUE;
	}
	if (unpd)
		stuff[stct++] = 'u';
	if (billx)
		stuff[stct++] = 'x';
	stuff[stct] = 0;

	if (stct > 1) {
		pline("What type of object [%s] do you want an inventory of? ",
		      stuff);
		c = readchar();
		if (strchr(quitchars, c))
			return (0);
	} else
		c = stuff[0];

	if (c == '$')
		return (doprgold());

	if (c == 'x' || c == 'X') {
		if (billx)
			doinvbill(1);
		else
			pline("No used-up objects on the shopping bill.");
		return (0);
	}

	if ((c == 'u' || c == 'U') && !unpd) {
		pline("You are not carrying any unpaid objects.");
		return (0);
	}

	stct = 0;
	ilet = 'a';
	for (otmp = invent; otmp; otmp = otmp->nobj) {
		if (flags.invlet_constant)
			ilet = otmp->invlet;
		if (c == otmp->olet || (c == 'u' && otmp->unpaid))
			stuff[stct++] = ilet;
		if (!flags.invlet_constant)
			if (++ilet > 'z')
				ilet = 'A';
	}
	stuff[stct] = '\0';
	if (stct == 0)
		pline("You have no such objects.");
	else
		doinv(stuff);

	return (0);
}

/* look at what is here */
int
dolook(void)
{
	struct obj *otmp, *otmp0 = NULL;
	struct gold *gold = NULL;
	const char *verb = Blind ? "feel" : "see";
	int ct = 0;

	if (!u.uswallow) {
		if (Blind) {
			pline("You try to feel what is lying here on the floor.");
			if (Levitation) {	/* ab@unido */
				pline("You cannot reach the floor!");
				return (1);
			}
		}
		otmp0 = o_at(u.ux, u.uy);
		gold = g_at(u.ux, u.uy);
	}

	if (u.uswallow || (!otmp0 && !gold)) {
		pline("You %s no objects here.", verb);
		return (!!Blind);
	}

	cornline(0, "Things that are here:");
	for (otmp = otmp0; otmp; otmp = otmp->nobj) {
		if (otmp->ox == u.ux && otmp->oy == u.uy) {
			ct++;
			cornline(1, doname(otmp));
			if (Blind && otmp->otyp == DEAD_COCKATRICE && !uarmg) {
				pline("Touching the dead cockatrice is a fatal mistake ...");
				pline("You die ...");
				killer = "dead cockatrice";
				done("died");
			}
		}
	}

	if (gold) {
		char gbuf[30];

		sprintf(gbuf, "%ld gold piece%s",
			gold->amount, plur(gold->amount));
		if (!ct++)
			pline("You %s here %s.", verb, gbuf);
		else
			cornline(1, gbuf);
	}

	if (ct == 1 && !gold) {
		pline("You %s here %s.", verb, doname(otmp0));
		cornline(3, NULL);
	}
	if (ct > 1)
		cornline(2, NULL);
	return (!!Blind);
}

void
stackobj(struct obj *obj)
{
	struct obj *otmp = fobj;

	for (otmp = fobj; otmp; otmp = otmp->nobj)
		if (otmp != obj)
			if (otmp->ox == obj->ox && otmp->oy == obj->oy &&
			    merged(obj, otmp, 1))
				return;
}

/* merge obj with otmp and delete obj if types agree */
static bool
merged(struct obj *otmp, struct obj *obj, bool lose)
{
	if (obj->otyp == otmp->otyp &&
	    obj->unpaid == otmp->unpaid &&
	    obj->spe == otmp->spe &&
	    obj->dknown == otmp->dknown &&
	    obj->cursed == otmp->cursed &&
	    (strchr("%*?!", obj->olet) ||
	     (obj->known == otmp->known &&
	      (obj->olet == WEAPON_SYM && obj->otyp < BOOMERANG)))) {
		otmp->quan += obj->quan;
		otmp->owt += obj->owt;
		if (lose)
			freeobj(obj);
		obfree(obj, otmp);	/* free(obj), bill->otmp */
		return (1);
	} else
		return (0);
}

/*
 * Gold is no longer displayed; in fact, when you have a lot of money,
 * it may take a while before you have counted it all.
 * [Bug: d$ and pickup still tell you how much it was.]
 */
static long goldcounted;

static bool
countgold(void)
{
	if ((goldcounted += 100 * (u.ulevel + 1)) >= u.ugold) {
		long eps = 0;
		if (!rn2(2))
			eps = rnd((int)(u.ugold / 100 + 1));
		pline("You probably have about %ld gold pieces.",
		      u.ugold + eps);
		return (0);	/* done */
	}
	return (1);		/* continue */
}

int
doprgold(void)
{
	if (!u.ugold)
		pline("You do not carry any gold.");
	else if (u.ugold <= 500)
		pline("You are carrying %ld gold pieces.", u.ugold);
	else {
		pline("You sit down in order to count your gold pieces.");
		goldcounted = 500;
		occupation = countgold;
		occtxt = "counting your gold";
	}
	return (1);
}

/* --- end of gold counting section --- */

int
doprwep(void)
{
	if (!uwep)
		pline("You are empty handed.");
	else
		prinv(uwep);
	return (0);
}

int
doprarm(void)
{
	if (!uarm && !uarmg && !uarms && !uarmh)
		pline("You are not wearing any armor.");
	else {
		char lets[6];
		int ct = 0;

		if (uarm)
			lets[ct++] = obj_to_let(uarm);
		if (uarm2)
			lets[ct++] = obj_to_let(uarm2);
		if (uarmh)
			lets[ct++] = obj_to_let(uarmh);
		if (uarms)
			lets[ct++] = obj_to_let(uarms);
		if (uarmg)
			lets[ct++] = obj_to_let(uarmg);
		lets[ct] = 0;
		doinv(lets);
	}
	return (0);
}

int
doprring(void)
{
	if (!uleft && !uright)
		pline("You are not wearing any rings.");
	else {
		char lets[3];
		int ct = 0;

		if (uleft)
			lets[ct++] = obj_to_let(uleft);
		if (uright)
			lets[ct++] = obj_to_let(uright);
		lets[ct] = 0;
		doinv(lets);
	}
	return (0);
}

bool
digit(char c)
{
	return (c >= '0' && c <= '9');
}