xref: /openbsd/games/monop/trade.c (revision 211c4183)
1 /*	$OpenBSD: trade.c,v 1.8 2016/01/08 18:20:33 mestre Exp $	*/
2 /*	$NetBSD: trade.c,v 1.3 1995/03/23 08:35:19 cgd Exp $	*/
3 
4 /*
5  * Copyright (c) 1980, 1993
6  *	The Regents of the University of California.  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
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #include <stdio.h>
34 #include <stdlib.h>
35 
36 #include "monop.ext"
37 
38 struct trd_st {			/* how much to give to other player	*/
39 	int	trader;			/* trader number		*/
40 	int	cash;			/* amount of cash 		*/
41 	int	gojf;			/* # get-out-of-jail-free cards	*/
42 	OWN	*prop_list;		/* property list		*/
43 };
44 
45 typedef	struct trd_st	TRADE;
46 
47 static char	*plist[MAX_PRP+2];
48 
49 static int	used[MAX_PRP];
50 
51 static TRADE	trades[2];
52 
53 static void	get_list(int, int );
54 static int	set_list(OWN *);
55 static void	summate(void);
56 static void	do_trade(void);
57 static void	move_em(TRADE *, TRADE *);
58 
59 void
trade(void)60 trade(void)
61 {
62 	int	tradee, i;
63 
64 	trading = TRUE;
65 	for (i = 0; i < 2; i++) {
66 		trades[i].cash = 0;
67 		trades[i].gojf = FALSE;
68 		trades[i].prop_list = NULL;
69 	}
70 over:
71 	if (num_play == 1) {
72 		printf("There ain't no-one around to trade WITH!!\n");
73 		return;
74 	}
75 	if (num_play > 2) {
76 		tradee = getinp("Which player do you wish to trade with? ",
77 		    name_list);
78 		if (tradee == num_play)
79 			return;
80 		if (tradee == player) {
81 			printf("You can't trade with yourself!\n");
82 			goto over;
83 		}
84 	}
85 	else
86 		tradee = 1 - player;
87 	get_list(0, player);
88 	get_list(1, tradee);
89 	if (getyn("Do you wish a summary? ") == 0)
90 		summate();
91 	if (getyn("Is the trade ok? ") == 0)
92 		do_trade();
93 }
94 /*
95  *	This routine gets the list of things to be trader for the
96  * player, and puts in the structure given.
97  */
98 static void
get_list(int struct_no,int play_no)99 get_list(int struct_no, int play_no)
100 {
101 	int	sn, pn;
102 	PLAY	*pp;
103 	int	numin, prop, num_prp;
104 	OWN	*op;
105 	TRADE	*tp;
106 
107 	for (numin = 0; numin < MAX_PRP; numin++)
108 		used[numin] = FALSE;
109 	sn = struct_no, pn = play_no;
110 	pp = &play[pn];
111 	tp = &trades[sn];
112 	tp->trader = pn;
113 	printf("player %s (%d):\n", pp->name, pn+1);
114 	if (pp->own_list) {
115 		numin = set_list(pp->own_list);
116 		for (num_prp = numin; num_prp; ) {
117 			prop = getinp("Which property do you wish to trade? ",
118 			    plist);
119 			if (prop == numin)
120 				break;
121 			else if (used[prop])
122 				printf("You've already allocated that.\n");
123 			else {
124 				num_prp--;
125 				used[prop] = TRUE;
126 				for (op = pp->own_list; prop--; op = op->next)
127 					continue;
128 				add_list(pn, &(tp->prop_list), sqnum(op->sqr));
129 			}
130 		}
131 	}
132 	if (pp->money > 0) {
133 		printf("You have $%d.  ", pp->money);
134 		tp->cash = get_int("How much are you trading? ");
135 	}
136 	if (pp->num_gojf > 0) {
137 once_more:
138 		printf("You have %d get-out-of-jail-free cards. ",pp->num_gojf);
139 		tp->gojf = get_int("How many are you trading? ");
140 		if (tp->gojf > pp->num_gojf) {
141 			printf("You don't have that many.  Try again.\n");
142 			goto once_more;
143 		}
144 	}
145 }
146 /*
147  *	This routine sets up the list of tradable property.
148  */
149 static int
set_list(OWN * the_list)150 set_list(OWN *the_list)
151 {
152 	int	i;
153 	OWN	*op;
154 
155 	i = 0;
156 	for (op = the_list; op; op = op->next)
157 		if (!used[i])
158 			plist[i++] = op->sqr->name;
159 	plist[i++] = "done";
160 	plist[i--] = 0;
161 	return i;
162 }
163 /*
164  *	This routine summates the trade.
165  */
166 static void
summate(void)167 summate(void)
168 {
169 	bool	some;
170 	int	i;
171 	TRADE	*tp;
172 	OWN	*op;
173 
174 	for (i = 0; i < 2; i++) {
175 		tp = &trades[i];
176 		some = FALSE;
177 		printf("Player %s (%d) gives:\n", play[tp->trader].name,
178 			tp->trader+1);
179 		if (tp->cash > 0)
180 			printf("\t$%d\n", tp->cash), some++;
181 		if (tp->gojf > 0)
182 			printf("\t%d get-out-of-jail-free card(s)\n", tp->gojf),
183 			some++;
184 		if (tp->prop_list) {
185 			for (op = tp->prop_list; op; op = op->next)
186 				putchar('\t'), printsq(sqnum(op->sqr), TRUE);
187 			some++;
188 		}
189 		if (!some)
190 			printf("\t-- Nothing --\n");
191 	}
192 }
193 /*
194  *	This routine actually executes the trade.
195  */
196 static void
do_trade(void)197 do_trade(void)
198 {
199 	move_em(&trades[0], &trades[1]);
200 	move_em(&trades[1], &trades[0]);
201 }
202 /*
203  *	This routine does a switch from one player to another
204  */
205 static void
move_em(TRADE * from,TRADE * to)206 move_em(TRADE *from, TRADE *to)
207 {
208 	PLAY	*pl_fr, *pl_to;
209 	OWN	*op;
210 
211 	pl_fr = &play[from->trader];
212 	pl_to = &play[to->trader];
213 
214 	pl_fr->money -= from->cash;
215 	pl_to->money += from->cash;
216 	pl_fr->num_gojf -= from->gojf;
217 	pl_to->num_gojf += from->gojf;
218 	for (op = from->prop_list; op; op = op->next) {
219 		add_list(to->trader, &(pl_to->own_list), sqnum(op->sqr));
220 		op->sqr->owner = to->trader;
221 		del_list(from->trader, &(pl_fr->own_list), sqnum(op->sqr));
222 	}
223 	set_ownlist(to->trader);
224 }
225 /*
226  *	This routine lets a player resign
227  */
228 void
resign(void)229 resign(void)
230 {
231 	int	i, new_own;
232 	OWN	*op;
233 	SQUARE	*sqp;
234 
235 	if (cur_p->money <= 0) {
236 		switch (board[(int)cur_p->loc].type) {
237 		  case UTIL:
238 		  case RR:
239 		  case PRPTY:
240 			new_own = board[(int)cur_p->loc].owner;
241 			/* If you ran out of money by buying current location */
242 			if (new_own == player)
243 				new_own = num_play;
244 			break;
245 		  default:		/* Chance, taxes, etc */
246 			new_own = num_play;
247 			break;
248 		}
249 		if (new_own == num_play)
250 			printf("You would resign to the bank\n");
251 		else
252 			printf("You would resign to %s\n", name_list[new_own]);
253 	}
254 	else if (num_play == 1) {
255 		new_own = num_play;
256 		printf("You would resign to the bank\n");
257 	}
258 	else {
259 		name_list[num_play] = "bank";
260 		do {
261 			new_own = getinp("Who do you wish to resign to? ",
262 			    name_list);
263 			if (new_own == player)
264 				printf("You can't resign to yourself!!\n");
265 		} while (new_own == player);
266 		name_list[num_play] = "done";
267 	}
268 	if (getyn("Do you really want to resign? ") != 0)
269 		return;
270 	if (num_play == 1) {
271 		printf("Then NOBODY wins (not even YOU!)\n");
272 		exit(0);
273 	}
274 	if (new_own < num_play) {	/* resign to player		*/
275 		printf("resigning to player\n");
276 		trades[0].trader = new_own;
277 		trades[0].cash = trades[0].gojf = 0;
278 		trades[0].prop_list = NULL;
279 		trades[1].trader = player;
280 		trades[1].cash = cur_p->money > 0 ? cur_p->money : 0;
281 		trades[1].gojf = cur_p->num_gojf;
282 		trades[1].prop_list = cur_p->own_list;
283 		do_trade();
284 	}
285 	else {				/* resign to bank		*/
286 		printf("resigning to bank\n");
287 		for (op = cur_p->own_list; op; op = op->next) {
288 			sqp = op->sqr;
289 			sqp->owner = -1;
290 			sqp->desc->morg = FALSE;
291 			if (sqp->type == PRPTY) {
292 				isnot_monop(sqp->desc->mon_desc);
293 				sqp->desc->houses = 0;
294 			}
295 		}
296 		if (cur_p->num_gojf)
297 			ret_card(cur_p);
298 	}
299 	free(name_list[player]);
300 	for (i = player; i < num_play; i++) {
301 		name_list[i] = name_list[i+1];
302 		if (i + 1 < num_play)
303 			play[i] = play[i+1];
304 	}
305 	name_list[num_play--] = NULL;
306 	for (i = 0; i < N_SQRS; i++)
307 		if (board[i].owner > player)
308 			--board[i].owner;
309 	if (player == 0)
310 		player = num_play - 1;
311 	else
312 		player--;
313 	next_play();
314 	if (num_play < 2) {
315 		printf("\nThen %s WINS!!!!!\n", play[0].name);
316 		printhold(0);
317 		printf("That's a grand worth of $%d.\n",
318 			play[0].money+prop_worth(&play[0]));
319 		exit(0);
320 	}
321 }
322