xref: /dragonfly/games/monop/prop.c (revision 631c21f2)
1 /*	$NetBSD: prop.c,v 1.20 2012/06/19 05:35:32 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  *	@(#)prop.c	8.1 (Berkeley) 5/31/93
32  */
33 
34 #include <stdlib.h>
35 
36 #include "monop.h"
37 
38 static int value(SQUARE *);
39 
40 /*
41  *	This routine deals with buying property, setting all the
42  * appropriate flags.
43  */
44 void
45 buy(int playernum, SQUARE *sqrp)
46 {
47 	trading = FALSE;
48 	sqrp->owner = playernum;
49 	add_list(playernum, &(play[playernum].own_list), cur_p->loc);
50 }
51 
52 /*
53  *	This routine adds an item to the list.
54  */
55 void
56 add_list(int plr, OWN **head, int op_sqr)
57 {
58 	int val;
59 	OWN *tp, *last_tp;
60 	OWN *op;
61 
62 	op = calloc(1, sizeof (OWN));
63 	if (op == NULL)
64 		errx(1, "out of memory");
65 	op->sqr = &board[op_sqr];
66 	val = value(op->sqr);
67 	last_tp = NULL;
68 	for (tp = *head; tp && value(tp->sqr) < val; tp = tp->next)
69 		if (val == value(tp->sqr)) {
70 			free(op);
71 			return;
72 		}
73 		else
74 			last_tp = tp;
75 	op->next = tp;
76 	if (last_tp != NULL)
77 		last_tp->next = op;
78 	else
79 		*head = op;
80 	if (!trading)
81 		set_ownlist(plr);
82 }
83 
84 /*
85  *	This routine deletes property from the list.
86  */
87 void
88 del_list(int plr, OWN **head, short op_sqr)
89 {
90 	OWN *op, *last_op;
91 
92 	switch (board[op_sqr].type) {
93 	  case PRPTY:
94 		board[op_sqr].desc->mon_desc->num_own--;
95 		break;
96 	  case RR:
97 		play[plr].num_rr--;
98 		break;
99 	  case UTIL:
100 		play[plr].num_util--;
101 		break;
102 	}
103 	last_op = NULL;
104 	for (op = *head; op; op = op->next)
105 		if (op->sqr == &board[op_sqr])
106 			break;
107 		else
108 			last_op = op;
109 	if (op == NULL)
110 		return;
111 	if (last_op == NULL)
112 		*head = op->next;
113 	else {
114 		last_op->next = op->next;
115 		free(op);
116 	}
117 }
118 
119 /*
120  *	This routine calculates the value for sorting of the
121  * given square.
122  */
123 static int
124 value(SQUARE *sqp)
125 {
126 	int sqr;
127 
128 	sqr = sqnum(sqp);
129 	switch (sqp->type) {
130 	  case SAFE:
131 		return 0;
132 	  default:		/* Specials, etc */
133 		return 1;
134 	  case UTIL:
135 		if (sqr == 12)
136 			return 2;
137 		else
138 			return 3;
139 	  case RR:
140 		return 4 + sqr/10;
141 	  case PRPTY:
142 		return 8 + (sqp->desc) - prop;
143 	}
144 }
145 
146 /*
147  * This routine accepts bids for the current piece of property.
148  */
149 void
150 bid(void)
151 {
152 	static bool in[MAX_PL];
153 	int i, num_in, cur_max;
154 	char buf[257];
155 	int cur_bid;
156 
157 	printf("\nSo it goes up for auction.  Type your bid after your name\n");
158 	for (i = 0; i < num_play; i++)
159 		in[i] = TRUE;
160 	i = -1;
161 	cur_max = 0;
162 	num_in = num_play;
163 	while (num_in > 1 || (cur_max == 0 && num_in > 0)) {
164 		i = (i + 1) % num_play;
165 		if (in[i]) {
166 			do {
167 				(void)snprintf(buf, sizeof(buf), "%s: ",
168 				    name_list[i]);
169 				cur_bid = get_int(buf);
170 				if (cur_bid == 0) {
171 					in[i] = FALSE;
172 					if (--num_in == 0)
173 						break;
174 				} else if (cur_bid <= cur_max) {
175 					printf("You must bid higher than %d "
176 					    "to stay in\n", cur_max);
177 					printf("(bid of 0 drops you out)\n");
178 				} else if (cur_bid > play[i].money) {
179 					printf("You can't bid more than your cash ($%d)\n",
180 					    play[i].money);
181 					cur_bid = -1;
182 				}
183 			} while (cur_bid != 0 && cur_bid <= cur_max);
184 			cur_max = (cur_bid ? cur_bid : cur_max);
185 		}
186 	}
187 	if (cur_max != 0) {
188 		while (!in[i])
189 			i = (i + 1) % num_play;
190 		printf("It goes to %s (%d) for $%d\n",play[i].name,i+1,cur_max);
191 		buy(i, &board[cur_p->loc]);
192 		play[i].money -= cur_max;
193 	}
194 	else
195 		printf("Nobody seems to want it, so we'll leave it for "
196 		    "later\n");
197 }
198 
199 /*
200  *	This routine calculates the value of the property
201  * of given player.
202  */
203 int
204 prop_worth(PLAY *plp)
205 {
206 	OWN *op;
207 	int worth;
208 
209 	worth = 0;
210 	for (op = plp->own_list; op; op = op->next) {
211 		if (op->sqr->type == PRPTY && op->sqr->desc->monop)
212 			worth += op->sqr->desc->mon_desc->h_cost * 50 *
213 			    op->sqr->desc->houses;
214 		worth += op->sqr->cost;
215 	}
216 	return worth;
217 }
218