xref: /netbsd-src/games/monop/prop.c (revision a5847cc334d9a7029f6352b847e9e8d71a0f9e0c)
1 /*	$NetBSD: prop.c,v 1.19 2008/02/24 05:53:33 dholland Exp $	*/
2 
3 /*
4  * Copyright (c) 1980, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)prop.c	8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: prop.c,v 1.19 2008/02/24 05:53:33 dholland Exp $");
38 #endif
39 #endif /* not lint */
40 
41 #include <stdlib.h>
42 
43 #include "monop.h"
44 
45 static int value(SQUARE *);
46 
47 /*
48  *	This routine deals with buying property, setting all the
49  * appropriate flags.
50  */
51 void
52 buy(playernum, sqrp)
53 	int playernum;
54 	SQUARE *sqrp;
55 {
56 	trading = FALSE;
57 	sqrp->owner = playernum;
58 	add_list(playernum, &(play[playernum].own_list), cur_p->loc);
59 }
60 
61 /*
62  *	This routine adds an item to the list.
63  */
64 void
65 add_list(plr, head, op_sqr)
66 	int plr;
67 	OWN **head;
68 	int op_sqr;
69 {
70 	int val;
71 	OWN *tp, *last_tp;
72 	OWN *op;
73 
74 	op = calloc(1, sizeof (OWN));
75 	if (op == NULL)
76 		errx(1, "out of memory");
77 	op->sqr = &board[op_sqr];
78 	val = value(op->sqr);
79 	last_tp = NULL;
80 	for (tp = *head; tp && value(tp->sqr) < val; tp = tp->next)
81 		if (val == value(tp->sqr)) {
82 			free(op);
83 			return;
84 		}
85 		else
86 			last_tp = tp;
87 	op->next = tp;
88 	if (last_tp != NULL)
89 		last_tp->next = op;
90 	else
91 		*head = op;
92 	if (!trading)
93 		set_ownlist(plr);
94 }
95 
96 /*
97  *	This routine deletes property from the list.
98  */
99 void
100 del_list(int plr, OWN **head, short op_sqr)
101 {
102 	OWN *op, *last_op;
103 
104 	switch (board[op_sqr].type) {
105 	  case PRPTY:
106 		board[op_sqr].desc->mon_desc->num_own--;
107 		break;
108 	  case RR:
109 		play[plr].num_rr--;
110 		break;
111 	  case UTIL:
112 		play[plr].num_util--;
113 		break;
114 	}
115 	last_op = NULL;
116 	for (op = *head; op; op = op->next)
117 		if (op->sqr == &board[op_sqr])
118 			break;
119 		else
120 			last_op = op;
121 	if (op == NULL)
122 		return;
123 	if (last_op == NULL)
124 		*head = op->next;
125 	else {
126 		last_op->next = op->next;
127 		free(op);
128 	}
129 }
130 
131 /*
132  *	This routine calculates the value for sorting of the
133  * given square.
134  */
135 static int
136 value(sqp)
137 	SQUARE *sqp;
138 {
139 	int sqr;
140 
141 	sqr = sqnum(sqp);
142 	switch (sqp->type) {
143 	  case SAFE:
144 		return 0;
145 	  default:		/* Specials, etc */
146 		return 1;
147 	  case UTIL:
148 		if (sqr == 12)
149 			return 2;
150 		else
151 			return 3;
152 	  case RR:
153 		return 4 + sqr/10;
154 	  case PRPTY:
155 		return 8 + (sqp->desc) - prop;
156 	}
157 }
158 
159 /*
160  * This routine accepts bids for the current piece of property.
161  */
162 void
163 bid()
164 {
165 	static bool in[MAX_PL];
166 	int i, num_in, cur_max;
167 	char buf[257];
168 	int cur_bid;
169 
170 	printf("\nSo it goes up for auction.  Type your bid after your name\n");
171 	for (i = 0; i < num_play; i++)
172 		in[i] = TRUE;
173 	i = -1;
174 	cur_max = 0;
175 	num_in = num_play;
176 	while (num_in > 1 || (cur_max == 0 && num_in > 0)) {
177 		i = (i + 1) % num_play;
178 		if (in[i]) {
179 			do {
180 				(void)snprintf(buf, sizeof(buf), "%s: ",
181 				    name_list[i]);
182 				cur_bid = get_int(buf);
183 				if (cur_bid == 0) {
184 					in[i] = FALSE;
185 					if (--num_in == 0)
186 						break;
187 				} else if (cur_bid <= cur_max) {
188 					printf("You must bid higher than %d "
189 					    "to stay in\n", cur_max);
190 					printf("(bid of 0 drops you out)\n");
191 				} else if (cur_bid > play[i].money) {
192 					printf("You can't bid more than your cash ($%d)\n",
193 					    play[i].money);
194 					cur_bid = -1;
195 				}
196 			} while (cur_bid != 0 && cur_bid <= cur_max);
197 			cur_max = (cur_bid ? cur_bid : cur_max);
198 		}
199 	}
200 	if (cur_max != 0) {
201 		while (!in[i])
202 			i = (i + 1) % num_play;
203 		printf("It goes to %s (%d) for $%d\n",play[i].name,i+1,cur_max);
204 		buy(i, &board[cur_p->loc]);
205 		play[i].money -= cur_max;
206 	}
207 	else
208 		printf("Nobody seems to want it, so we'll leave it for "
209 		    "later\n");
210 }
211 
212 /*
213  *	This routine calculates the value of the property
214  * of given player.
215  */
216 int
217 prop_worth(plp)
218 	PLAY *plp;
219 {
220 	OWN *op;
221 	int worth;
222 
223 	worth = 0;
224 	for (op = plp->own_list; op; op = op->next) {
225 		if (op->sqr->type == PRPTY && op->sqr->desc->monop)
226 			worth += op->sqr->desc->mon_desc->h_cost * 50 *
227 			    op->sqr->desc->houses;
228 		worth += op->sqr->cost;
229 	}
230 	return worth;
231 }
232