xref: /dragonfly/games/monop/prop.c (revision 11c3b524747d8c5b8633b938fd0fceb1d5878a2e)
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
buy(int playernum,SQUARE * sqrp)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
add_list(int plr,OWN ** head,int op_sqr)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
del_list(int plr,OWN ** head,short op_sqr)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
value(SQUARE * sqp)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
bid(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
prop_worth(PLAY * plp)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