xref: /dragonfly/games/larn/store.c (revision f746689a)
1 /*-
2  * Copyright (c) 1988 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * @(#)store.c	5.4 (Berkeley) 5/13/91
34  * $FreeBSD: src/games/larn/store.c,v 1.5 1999/11/30 03:49:00 billf Exp $
35  * $DragonFly: src/games/larn/store.c,v 1.4 2006/08/26 17:05:05 pavalos Exp $
36  */
37 
38 /*	store.c		Larn is copyrighted 1986 by Noah Morgan. */
39 #include "header.h"
40 
41 static void	dnd_2hed(void);
42 static void	dnd_hed(void);
43 static void	handsfull(void);
44 static void	outofstock(void);
45 static void	nogold(void);
46 static void	dnditem(int);
47 static void	sch_hed(void);
48 static void	banktitle(const char *);
49 static void	obanksub(void);
50 static void	otradhead(void);
51 static void	cnsitm(void);
52 
53 static int dndcount=0,dnditm=0;
54 
55 /*	this is the data for the stuff in the dnd store	*/
56 int maxitm=83;	/* number of items in the dnd inventory table	*/
57 struct _itm itm_[90] = {
58 /*cost		iven name		iven arg	how
59   gp		iven[]			ivenarg[]	many */
60 
61 { 2,		OLEATHER,		0,		3	},
62 { 10,		OSTUDLEATHER,		0,		2	},
63 { 40,		ORING,			0,		2	},
64 { 85,		OCHAIN,			0,		2	},
65 { 220,		OSPLINT,		0,		1	},
66 { 400,		OPLATE,			0,		1	},
67 { 900,		OPLATEARMOR,		0,		1	},
68 { 2600,		OSSPLATE,		0,		1	},
69 { 150,		OSHIELD,		0,		1	},
70 
71 /*cost		iven name		iven arg	how
72   gp		iven[]			ivenarg[]	many */
73 
74 { 2,		ODAGGER,		0,		3	},
75 { 20,		OSPEAR,			0,		3	},
76 { 80,		OFLAIL,			0,		2	},
77 { 150,		OBATTLEAXE,		0,		2	},
78 { 450,		OLONGSWORD,		0,		2	},
79 { 1000,		O2SWORD,		0,		2	},
80 { 5000,		OSWORD,			0,		1	},
81 { 16500,	OLANCE,			0,		1	},
82 { 6000,		OSWORDofSLASHING,	0,		0	},
83 { 10000,	OHAMMER,		0,		0	},
84 
85 /*cost		iven name		iven arg	how
86   gp		iven[]			ivenarg[]	many */
87 
88 { 150,		OPROTRING,		1,		1	},
89 { 85,		OSTRRING,		1,		1	},
90 { 120,		ODEXRING,		1,		1	},
91 { 120,		OCLEVERRING,		1,		1	},
92 { 180,		OENERGYRING,		0,		1	},
93 { 125,		ODAMRING,		0,		1	},
94 { 220,		OREGENRING,		0,		1	},
95 { 1000,		ORINGOFEXTRA,		0,		1	},
96 
97 { 280,		OBELT,			0,		1	},
98 
99 { 400,		OAMULET,		0,		1	},
100 
101 { 6500,		OORBOFDRAGON,		0,		0	},
102 { 5500,		OSPIRITSCARAB,		0,		0	},
103 { 5000,		OCUBEofUNDEAD,		0,		0	},
104 { 6000,		ONOTHEFT,		0,		0	},
105 
106 { 590,		OCHEST,			6,		1	},
107 { 200,		OBOOK,			8,		1	},
108 { 10,		OCOOKIE,		0,		3	},
109 
110 /*cost		iven name		iven arg	how
111   gp		iven[]			ivenarg[]	many */
112 
113 { 20,		OPOTION,		0,		6	},
114 { 90,		OPOTION,		1,		5	},
115 { 520,		OPOTION,		2,		1	},
116 { 100,		OPOTION,		3,		2	},
117 { 50,		OPOTION,		4,		2	},
118 { 150,		OPOTION,		5,		2	},
119 { 70,		OPOTION,		6,		1	},
120 { 30,		OPOTION,		7,		7	},
121 { 200,		OPOTION,		8,		1	},
122 { 50,		OPOTION,		9,		1	},
123 { 80,		OPOTION,		10,		1	},
124 
125 /*cost		iven name		iven arg	how
126   gp		iven[]			ivenarg[]	many */
127 
128 { 30,		OPOTION,		11,		3	},
129 { 20,		OPOTION,		12,		5	},
130 { 40,		OPOTION,		13,		3	},
131 { 35,		OPOTION,		14,		2	},
132 { 520,		OPOTION,		15,		1	},
133 { 90,		OPOTION,		16,		2	},
134 { 200,		OPOTION,		17,		2	},
135 { 220,		OPOTION,		18,		4	},
136 { 80,		OPOTION,		19,		6	},
137 { 370,		OPOTION,		20,		3	},
138 { 50,		OPOTION,		22,		1	},
139 { 150,		OPOTION,		23,		3	},
140 
141 /*cost		iven name		iven arg	how
142   gp		iven[]			ivenarg[]	many */
143 
144 { 100,		OSCROLL,		0,		2	},
145 { 125,		OSCROLL,		1,		2	},
146 { 60,		OSCROLL,		2,		4	},
147 { 10,		OSCROLL,		3,		4	},
148 { 100,		OSCROLL,		4,		3	},
149 { 200,		OSCROLL,		5,		2	},
150 { 110,		OSCROLL,		6,		1	},
151 { 500,		OSCROLL,		7,		2	},
152 { 200,		OSCROLL,		8,		2	},
153 { 250,		OSCROLL,		9,		4	},
154 { 20,		OSCROLL,		10,		5	},
155 { 30,		OSCROLL,		11,		3	},
156 
157 /*cost		iven name		iven arg	how
158   gp		iven[]			ivenarg[]	many */
159 
160 { 340,		OSCROLL,		12,		1	},
161 { 340,		OSCROLL,		13,		1	},
162 { 300,		OSCROLL,		14,		2	},
163 { 400,		OSCROLL,		15,		2	},
164 { 500,		OSCROLL,		16,		2	},
165 { 1000,		OSCROLL,		17,		1	},
166 { 500,		OSCROLL,		18,		1	},
167 { 340,		OSCROLL,		19,		2	},
168 { 220,		OSCROLL,		20,		3	},
169 { 3900,		OSCROLL,		21,		0	},
170 { 610,		OSCROLL,		22,		1	},
171 { 3000,		OSCROLL,		23,		0	}
172  };
173 
174 /*
175 	function for the dnd store
176  */
177 static void
178 dnd_2hed(void)
179     {
180 	lprcat("Welcome to the Larn Thrift Shoppe.  We stock many items explorers find useful\n");
181 	lprcat(" in their adventures.  Feel free to browse to your hearts content.\n");
182 	lprcat("Also be advised, if you break 'em, you pay for 'em.");
183 	}
184 
185 static void
186 dnd_hed(void)
187 	{
188 	int i;
189 	for (i=dnditm; i<26+dnditm; i++)	dnditem(i);
190 	cursor(50,18); lprcat("You have ");
191 	}
192 
193 static void
194 handsfull(void)
195 {
196 	lprcat("\nYou can't carry anything more!");
197 	lflush();
198 	nap(2200);
199 }
200 
201 static void
202 outofstock(void)
203 {
204 	lprcat("\nSorry, but we are out of that item.");
205 	lflush();
206 	nap(2200);
207 }
208 
209 static void
210 nogold(void)
211 {
212 	lprcat("\nYou don't have enough gold to pay for that!");
213 	lflush();
214 	nap(2200);
215 }
216 
217 void
218 dndstore(void)
219   {
220   int i;
221   dnditm = 0;
222   nosignal = 1; /* disable signals */
223   clear();  dnd_2hed();
224   if (outstanding_taxes>0)
225 	{
226 	lprcat("\n\nThe Larn Revenue Service has ordered us to not do business with tax evaders.\n"); beep();
227 	lprintf("They have also told us that you owe %d gp in back taxes, and as we must\n",(long)outstanding_taxes);
228 	lprcat("comply with the law, we cannot serve you at this time.  Soo Sorry.\n");
229 	cursors();
230 	lprcat("\nPress "); standout("escape"); lprcat(" to leave: "); lflush();
231 	i=0;
232 	while (i!='\33') i=getchr();
233 	drawscreen();  nosignal = 0; /* enable signals */ return;
234 	}
235 
236   dnd_hed();
237   while (1)
238 	{
239 	cursor(59,18); lprintf("%d gold pieces",(long)c[GOLD]);
240 	cltoeoln(); cl_dn(1,20);	/* erase to eod */
241 	lprcat("\nEnter your transaction ["); standout("space");
242 	lprcat(" for more, "); standout("escape");
243 	lprcat(" to leave]? ");
244 	i=0;
245 	while ((i<'a' || i>'z') && (i!=' ') && (i!='\33') && (i!=12))  i=getchr();
246 	if (i==12) { clear();  dnd_2hed();  dnd_hed(); }
247 	else if (i=='\33')
248 		{ drawscreen();  nosignal = 0; /* enable signals */ return; }
249 	else if (i==' ')
250 		{
251 		cl_dn(1,4);
252 		if ((dnditm += 26) >= maxitm) dnditm=0; dnd_hed();
253 		}
254 	else
255 		{  /* buy something */
256 		lprc(i);	/* echo the byte */
257 		i += dnditm - 'a';
258 		if (i>=maxitm) outofstock(); else
259 		if (itm_[i].qty <= 0) outofstock(); else
260 		if (pocketfull()) handsfull(); else
261 		if (c[GOLD] < itm_[i].price*10) nogold(); else
262 			{
263 			if (itm_[i].obj == OPOTION)
264 				potionname[itm_[i].arg] = potionhide[itm_[i].arg];
265 			else if (itm_[i].obj == OSCROLL)
266 				scrollname[itm_[i].arg] = scrollhide[itm_[i].arg];
267 			c[GOLD] -= itm_[i].price*10;
268 			itm_[i].qty--;  take(itm_[i].obj,itm_[i].arg);
269 			if (itm_[i].qty==0) dnditem(i);  nap(1001);
270 			}
271 		}
272 
273 	}
274   }
275 
276 /*
277 	dnditem(index)
278 
279 	to print the item list;  used in dndstore() enter with the index into itm_
280  */
281 static void
282 dnditem(int i)
283 	{
284 	int j,k;
285 	if (i >= maxitm)  return;
286 	cursor( (j=(i&1)*40+1) , (k=((i%26)>>1)+5) );
287 	if (itm_[i].qty == 0)  { lprintf("%39s","");  return; }
288 	lprintf("%c) ",(i%26)+'a');
289 	if (itm_[i].obj == OPOTION)
290 		{ lprcat("potion of "); lprintf("%s",potionhide[itm_[i].arg]); }
291 	else if (itm_[i].obj == OSCROLL)
292 		{ lprcat("scroll of "); lprintf("%s",scrollhide[itm_[i].arg]); }
293 	else lprintf("%s",objectname[itm_[i].obj]);
294 	cursor( j+31,k );  lprintf("%6d",(long)(itm_[i].price*10));
295 	}
296 
297 
298 /*
299 	for the college of larn
300  */
301 char course[26]={0};	/*	the list of courses taken	*/
302 char coursetime[] = { 10, 15, 10, 20, 10, 10, 10, 5 };
303 /*
304 	function to display the header info for the school
305  */
306 static void
307 sch_hed(void)
308 	{
309 	clear();
310 	lprcat("The College of Larn offers the exciting opportunity of higher education to\n");
311 	lprcat("all inhabitants of the caves.  Here is a list of the class schedule:\n\n\n");
312 	lprcat("\t\t    Course Name \t       Time Needed\n\n");
313 
314 	if (course[0]==0) lprcat("\t\ta)  Fighters Training I         10 mobuls"); /*line 7 of crt*/
315 	lprc('\n');
316 	if (course[1]==0) lprcat("\t\tb)  Fighters Training II        15 mobuls");
317 	lprc('\n');
318 	if (course[2]==0) lprcat("\t\tc)  Introduction to Wizardry    10 mobuls");
319 	lprc('\n');
320 	if (course[3]==0) lprcat("\t\td)  Applied Wizardry            20 mobuls");
321 	lprc('\n');
322 	if (course[4]==0) lprcat("\t\te)  Behavioral Psychology       10 mobuls");
323 	lprc('\n');
324 	if (course[5]==0) lprcat("\t\tf)  Faith for Today             10 mobuls");
325 	lprc('\n');
326 	if (course[6]==0) lprcat("\t\tg)  Contemporary Dance          10 mobuls");
327 	lprc('\n');
328 	if (course[7]==0) lprcat("\t\th)  History of Larn              5 mobuls");
329 
330 	lprcat("\n\n\t\tAll courses cost 250 gold pieces.");
331 	cursor(30,18);
332 	lprcat("You are presently carrying ");
333 	}
334 
335 void
336 oschool(void)
337 	{
338 	int i;
339 	long time_used;
340 	nosignal = 1; /* disable signals */
341 	sch_hed();
342 	while (1)
343 		{
344 		cursor(57,18); lprintf("%d gold pieces.   ",(long)c[GOLD]); cursors();
345 		lprcat("\nWhat is your choice ["); standout("escape");
346 		lprcat(" to leave] ? ");  yrepcount=0;
347 		i=0;  while ((i<'a' || i>'h') && (i!='\33') && (i!=12)) i=getchr();
348 		if (i==12) { sch_hed();  continue; }
349 		else if (i=='\33')
350 			{ nosignal = 0; drawscreen();  /* enable signals */ return; }
351 		lprc(i);
352 		if (c[GOLD] < 250)  nogold();  else
353 		if (course[i-'a'])
354 			{ lprcat("\nSorry, but that class is filled."); nap(1000); }
355 		else
356 		if (i <= 'h')
357 			{
358 			c[GOLD] -= 250; time_used=0;
359 			switch(i)
360 				{
361 				case 'a':	c[STRENGTH] += 2;  c[CONSTITUTION]++;
362 							lprcat("\nYou feel stronger!");
363 							cl_line(16,7);
364 							break;
365 
366 				case 'b':	if (course[0]==0)
367 								{
368 								lprcat("\nSorry, but this class has a prerequisite of Fighters Training I");
369 								c[GOLD]+=250;  time_used= -10000;  break;
370 								}
371 							lprcat("\nYou feel much stronger!");
372 							cl_line(16,8);
373 							c[STRENGTH] += 2;  c[CONSTITUTION] += 2;  break;
374 
375 				case 'c':	c[INTELLIGENCE] += 2;
376 							lprcat("\nThe task before you now seems more attainable!");
377 							cl_line(16,9);  break;
378 
379 				case 'd':	if (course[2]==0)
380 								{
381 								lprcat("\nSorry, but this class has a prerequisite of Introduction to Wizardry");
382 								c[GOLD]+=250;  time_used= -10000;  break;
383 								}
384 							lprcat("\nThe task before you now seems very attainable!");
385 							cl_line(16,10);
386 							c[INTELLIGENCE] += 2;  break;
387 
388 				case 'e':	c[CHARISMA] += 3;
389 							lprcat("\nYou now feel like a born leader!");
390 							cl_line(16,11);  break;
391 
392 				case 'f':	c[WISDOM] += 2;
393 							lprcat("\nYou now feel more confident that you can find the potion in time!");
394 							cl_line(16,12);  break;
395 
396 				case 'g':	c[DEXTERITY] += 3;
397 							lprcat("\nYou feel like dancing!");
398 							cl_line(16,13);  break;
399 
400 				case 'h':	c[INTELLIGENCE]++;
401 							lprcat("\nYour instructor told you that the Eye of Larn is rumored to be guarded\n");
402 							lprcat("by a platinum dragon who possesses psionic abilities. ");
403 							cl_line(16,14);  break;
404 				}
405 			time_used += coursetime[i-'a']*100;
406 			if (time_used > 0)
407 			  {
408 			  gtime += time_used;
409 			  course[i-'a']++;	/*	remember that he has taken that course	*/
410 			  c[HP] = c[HPMAX];  c[SPELLS] = c[SPELLMAX]; /* he regenerated */
411 
412 			  if (c[BLINDCOUNT])	c[BLINDCOUNT]=1;  /* cure blindness too!  */
413 			  if (c[CONFUSE])		c[CONFUSE]=1;	/*	end confusion	*/
414 			  larn_adjtime((long)time_used);	/* adjust parameters for time change */
415 			  }
416 			nap(1000);
417 			}
418 		}
419 	}
420 
421 /*
422  *	for the first national bank of Larn
423  */
424 int lasttime=0;	/* last time he was in bank */
425 
426 void
427 obank(void)
428 	{
429 	banktitle("    Welcome to the First National Bank of Larn.");
430 	}
431 
432 void
433 obank2(void)
434 	{
435 	banktitle("Welcome to the 5th level branch office of the First National Bank of Larn.");
436 	}
437 
438 static void
439 banktitle(const char *str)
440 	{
441 	nosignal = 1; /* disable signals */
442 	clear();  lprcat(str);
443 	if (outstanding_taxes>0)
444 		{
445 		int i;
446 		lprcat("\n\nThe Larn Revenue Service has ordered that your account be frozen until all\n"); beep();
447 		lprintf("levied taxes have been paid.  They have also told us that you owe %d gp in\n",(long)outstanding_taxes);
448 		lprcat("taxes, and we must comply with them. We cannot serve you at this time.  Sorry.\n");
449 		lprcat("We suggest you go to the LRS office and pay your taxes.\n");
450 		cursors();
451 		lprcat("\nPress "); standout("escape"); lprcat(" to leave: "); lflush();
452 		i=0;
453 		while (i!='\33') i=getchr();
454 		drawscreen();  nosignal = 0; /* enable signals */ return;
455 		}
456 	lprcat("\n\n\tGemstone\t      Appraisal\t\tGemstone\t      Appraisal");
457 	obanksub();		nosignal = 0; /* enable signals */
458 	drawscreen();
459 	}
460 
461 /*
462  *	function to put interest on your bank account
463  */
464 void
465 ointerest(void)
466 	{
467 	int i;
468 	if (c[BANKACCOUNT]<0) c[BANKACCOUNT] = 0;
469 	else if ((c[BANKACCOUNT]>0) && (c[BANKACCOUNT]<500000))
470 		{
471 		i = (gtime-lasttime)/100; /* # mobuls elapsed */
472 		while ((i-- > 0) && (c[BANKACCOUNT]<500000))
473 			c[BANKACCOUNT] += c[BANKACCOUNT]/250;
474 		if (c[BANKACCOUNT]>500000) c[BANKACCOUNT]=500000; /* interest limit */
475 		}
476 	lasttime = (gtime/100)*100;
477 	}
478 
479 static short gemorder[26]={0};	/* the reference to screen location for each */
480 static long gemvalue[26]={0};	/* the appraisal of the gems */
481 
482 static void
483 obanksub(void)
484 	{
485 	unsigned long amt;
486 	int i,k;
487 	ointerest();	/* credit any needed interest */
488 
489 	for (k=i=0; i<26; i++)
490 		switch(iven[i])
491 			{
492 			case OLARNEYE: case ODIAMOND: case OEMERALD:
493 			case ORUBY: case OSAPPHIRE:
494 
495 					if (iven[i]==OLARNEYE)
496 						{
497 						gemvalue[i]=250000-((gtime*7)/100)*100;
498 						if (gemvalue[i]<50000) gemvalue[i]=50000;
499 						}
500 					else gemvalue[i] = (255&ivenarg[i])*100;
501 					gemorder[i]=k;
502 					cursor( (k%2)*40+1 , (k>>1)+4 );
503 					lprintf("%c) %s",i+'a',objectname[(int)iven[i]]);
504 					cursor( (k%2)*40+33 , (k>>1)+4 );
505 					lprintf("%5d",(long)gemvalue[i]);  k++;
506 			};
507 	cursor(31,17); lprintf("You have %8d gold pieces in the bank.",(long)c[BANKACCOUNT]);
508 	cursor(40,18); lprintf("You have %8d gold pieces",(long)c[GOLD]);
509 	if (c[BANKACCOUNT]+c[GOLD] >= 500000)
510 		lprcat("\nNote:  Larndom law states that only deposits under 500,000gp  can earn interest.");
511 	while (1)
512 		{
513 		cl_dn(1,20);
514 		lprcat("\nYour wish? [("); standout("d"); lprcat(") deposit, (");
515 		standout("w"); lprcat(") withdraw, ("); standout("s");
516 		lprcat(") sell a stone, or "); standout("escape"); lprcat("]  ");
517 		yrepcount=0;
518 		i=0; while (i!='d' && i!='w' && i!='s' && i!='\33') i=getchr();
519 		switch(i)
520 			{
521 			case 'd':	lprcat("deposit\nHow much? ");	amt = readnum((long)c[GOLD]);
522 						if (amt>(unsigned)c[GOLD])
523 						  { lprcat("  You don't have that much.");  nap(2000); }
524 						else { c[GOLD] -= amt;  c[BANKACCOUNT] += amt; }
525 						break;
526 
527 			case 'w':	lprcat("withdraw\nHow much? ");	amt = readnum((long)c[BANKACCOUNT]);
528 						if (amt >(unsigned) c[BANKACCOUNT])
529 						  { lprcat("\nYou don't have that much in the bank!"); nap(2000); }
530 						else { c[GOLD] += amt;  c[BANKACCOUNT] -= amt; }
531 						break;
532 
533 			case 's':	lprcat("\nWhich stone would you like to sell? ");
534 						i=0; while ((i<'a' || i>'z') && i!='*') i=getchr();
535 						if (i=='*')
536 						  for (i=0; i<26; i++)
537 							{
538 							if (gemvalue[i])
539 								{
540 								c[GOLD]+=gemvalue[i];  iven[i]=0;
541 								gemvalue[i]=0;	k = gemorder[i];
542 								cursor( (k%2)*40+1 , (k>>1)+4 );
543 								lprintf("%39s","");
544 								}
545 							}
546 						else
547 							{
548 							if (gemvalue[i=i-'a']==0)
549 								{
550 								lprintf("\nItem %c is not a gemstone!",i+'a');
551 								nap(2000); break;
552 								}
553 							c[GOLD]+=gemvalue[i];  iven[i]=0;
554 							gemvalue[i]=0;	k = gemorder[i];
555 							cursor( (k%2)*40+1 , (k>>1)+4 ); lprintf("%39s","");
556 							}
557 						break;
558 
559 			case '\33':	return;
560 			};
561 		cursor(40,17); lprintf("%8d",(long)c[BANKACCOUNT]);
562 		cursor(49,18); lprintf("%8d",(long)c[GOLD]);
563 		}
564 	}
565 /*
566 	function for the trading post
567  */
568 static void
569 otradhead(void)
570 	{
571     clear();
572 	lprcat("Welcome to the Larn Trading Post.  We buy items that explorers no longer find\n");
573     lprcat("useful.  Since the condition of the items you bring in is not certain,\n");
574     lprcat("and we incur great expense in reconditioning the items, we usually pay\n");
575     lprcat("only 20% of their value were they to be new.  If the items are badly\n");
576 	lprcat("damaged, we will pay only 10% of their new value.\n\n");
577 	}
578 
579 void
580 otradepost(void)
581   {
582   int i,j,value,isub,izarg;
583   dnditm = dndcount = 0;
584   nosignal = 1; /* disable signals */
585   resetscroll();	otradhead();
586   while (1)
587 	{
588 	lprcat("\nWhat item do you want to sell to us ["); standout("*");
589 	lprcat(" for list, or "); standout("escape"); lprcat("] ? ");
590 	i=0; while (i>'z' || (i<'a' && i!='*' && i!='\33' && i!='.')) i=getchr();
591 	if (i == '\33')
592 		{ setscroll(); recalc(); drawscreen(); nosignal=0; /* enable signals */ return; }
593 	isub = i - 'a';		j=0;
594 	if (iven[isub]==OSCROLL) if (scrollname[ivenarg[isub]][0]==0)
595 		{ j=1; cnsitm(); }	/* can't sell unidentified item */
596 	if (iven[isub]==OPOTION) if (potionname[ivenarg[isub]][0]==0)
597 		{ j=1; cnsitm(); }	/* can't sell unidentified item */
598 	if (!j) {
599 	  if (i=='*') { clear(); qshowstr(); otradhead(); }
600 	else  if (iven[isub]==0)  lprintf("\nYou don't have item %c!",isub+'a');
601 	else
602 		{
603 		for (j=0; j<maxitm; j++)
604 		  if ((itm_[j].obj == iven[isub]) || (iven[isub] == ODIAMOND) || (iven[isub] == ORUBY) || (iven[isub] == OEMERALD) || (iven[isub] == OSAPPHIRE))
605 			{
606 			srcount=0;  show3(isub);	/* show what the item was */
607 			if ((iven[isub] == ODIAMOND) || (iven[isub] == ORUBY)
608 				|| (iven[isub] == OEMERALD) || (iven[isub] == OSAPPHIRE))
609 				value = 20*ivenarg[isub];
610 			else
611 			if ((itm_[j].obj == OSCROLL) || (itm_[j].obj == OPOTION))  value = 2*itm_[j+ivenarg[isub]].price;
612 			else
613 				{
614 				izarg=ivenarg[isub];  value = itm_[j].price;	/* appreciate if a +n object */
615 				if (izarg >= 0) value *= 2;
616 				while ((izarg-- > 0) && ((value=14*(67+value)/10) < 500000));
617 				}
618 			lprintf("\nItem (%c) is worth %d gold pieces to us.  Do you want to sell it? ",i,(long)value);
619 			yrepcount=0;
620 			if (getyn()=='y')
621 				{
622 				lprcat("yes\n"); c[GOLD]+=value;
623 				if (c[WEAR] == isub) c[WEAR] = -1;
624 				if (c[WIELD] == isub) c[WIELD] = -1;
625 				if (c[SHIELD] == isub) c[SHIELD] = -1;
626 				adjustcvalues(iven[isub],ivenarg[isub]);
627 				iven[isub]=0;
628 				}
629 			else lprcat("no thanks.\n");
630 			j = maxitm+100;	/* get out of the inner loop */
631 			}
632 		if (j <= maxitm+2) lprcat("\nSo sorry, but we are not authorized to accept that item.");
633 		}
634 	} /* if(!j) */
635 	} /* while(1) */
636   }
637 
638 static void
639 cnsitm(void)
640 	{ lprcat("\nSorry, we can't accept unidentified objects."); }
641 
642 /*
643  *	for the Larn Revenue Service
644  */
645 void
646 olrs(void)
647 	{
648 	int i,first;
649 	unsigned long amt;
650 	first = nosignal = 1; /* disable signals */
651 	clear();  resetscroll(); cursor(1,4);
652 	lprcat("Welcome to the Larn Revenue Service district office.  How can we help you?");
653 	while (1)
654 		{
655 		if (first) { first=0; goto nxt; }
656 		cursors();
657 		lprcat("\n\nYour wish? [(");
658 		standout("p");
659 		lprcat(") pay taxes, or ");
660 		standout("escape");
661 		lprcat("]  ");  yrepcount=0;
662 		i=0; while (i!='p' && i!='\33') i=getchr();
663 		switch(i)
664 			{
665 			case 'p':	lprcat("pay taxes\nHow much? "); amt = readnum((long)c[GOLD]);
666 						if (amt>(unsigned)c[GOLD])	lprcat("  You don't have that much.\n");
667 						else  c[GOLD] -= paytaxes((long)amt);
668 						break;
669 
670 			case '\33':	nosignal = 0; /* enable signals */
671 						setscroll(); drawscreen();	return;
672 			};
673 
674 nxt:	cursor(1,6);
675 		if (outstanding_taxes>0)
676 			lprintf("You presently owe %d gp in taxes.  ",(long)outstanding_taxes);
677 		else
678 			lprcat("You do not owe us any taxes.           ");
679 		cursor(1,8);
680 		if (c[GOLD]>0)
681 			lprintf("You have %6d gp.    ",(long)c[GOLD]);
682 		else
683 			lprcat("You have no gold pieces.  ");
684 		}
685 	}
686