xref: /original-bsd/games/monop/misc.c (revision 70c898fa)
1 /*
2  * Copyright (c) 1980 Regents of the University of California.
3  * All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  */
7 
8 #ifndef lint
9 static char sccsid[] = "@(#)misc.c	5.6 (Berkeley) 03/25/93";
10 #endif /* not lint */
11 
12 # include	"monop.ext"
13 # include	<ctype.h>
14 # include	<signal.h>
15 
16 /*
17  *	This routine executes a truncated set of commands until a
18  * "yes or "no" answer is gotten.
19  */
20 getyn(prompt)
21 reg char	*prompt; {
22 
23 	reg int	com;
24 
25 	for (;;)
26 		if ((com=getinp(prompt, yn)) < 2)
27 			return com;
28 		else
29 			(*func[com-2])();
30 }
31 /*
32  *	This routine tells the player if he's out of money.
33  */
34 notify() {
35 
36 	if (cur_p->money < 0)
37 		printf("That leaves you $%d in debt\n", -cur_p->money);
38 	else if (cur_p->money == 0)
39 		printf("that leaves you broke\n");
40 	else if (fixing && !told_em && cur_p->money > 0) {
41 		printf("-- You are now Solvent ---\n");
42 		told_em = TRUE;
43 	}
44 }
45 /*
46  *	This routine switches to the next player
47  */
48 next_play() {
49 
50 	player = ++player % num_play;
51 	cur_p = &play[player];
52 	num_doub = 0;
53 }
54 /*
55  *	This routine gets an integer from the keyboard after the
56  * given prompt.
57  */
58 get_int(prompt)
59 reg char	*prompt; {
60 
61 	reg int		num;
62 	reg char	*sp;
63 	char		buf[257];
64 
65 	for (;;) {
66 inter:
67 		printf(prompt);
68 		num = 0;
69 		for (sp = buf; (*sp=getchar()) != '\n'; sp++)
70 			if (*sp == -1)	/* check for interrupted system call */
71 				goto inter;
72 		if (sp == buf)
73 			continue;
74 		for (sp = buf; isspace(*sp); sp++)
75 			continue;
76 		for (; isdigit(*sp); sp++)
77 			num = num * 10 + *sp - '0';
78 		if (*sp == '\n')
79 			return num;
80 		else
81 			printf("I can't understand that\n");
82 	}
83 }
84 /*
85  *	This routine sets the monopoly flag from the list given.
86  */
87 set_ownlist(pl)
88 int	pl; {
89 
90 	reg int	num;		/* general counter		*/
91 	reg MON	*orig;		/* remember starting monop ptr	*/
92 	reg OWN	*op;		/* current owned prop		*/
93 	OWN	*orig_op;		/* origianl prop before loop	*/
94 
95 	op = play[pl].own_list;
96 #ifdef DEBUG
97 	printf("op [%d] = play[pl [%d] ].own_list;\n", op, pl);
98 #endif
99 	while (op) {
100 #ifdef DEBUG
101 		printf("op->sqr->type = %d\n", op->sqr->type);
102 #endif
103 		switch (op->sqr->type) {
104 		  case UTIL:
105 #ifdef DEBUG
106 			printf("  case UTIL:\n");
107 #endif
108 			for (num = 0; op && op->sqr->type == UTIL; op = op->next)
109 				num++;
110 			play[pl].num_util = num;
111 #ifdef DEBUG
112 			printf("play[pl].num_util = num [%d];\n", num);
113 #endif
114 			break;
115 		  case RR:
116 #ifdef DEBUG
117 			printf("  case RR:\n");
118 #endif
119 			for (num = 0; op && op->sqr->type == RR; op = op->next) {
120 #ifdef DEBUG
121 				printf("iter: %d\n", num);
122 				printf("op = %d, op->sqr = %d, op->sqr->type = %d\n", op, op->sqr, op->sqr->type);
123 #endif
124 				num++;
125 			}
126 			play[pl].num_rr = num;
127 #ifdef DEBUG
128 			printf("play[pl].num_rr = num [%d];\n", num);
129 #endif
130 			break;
131 		  case PRPTY:
132 #ifdef DEBUG
133 			printf("  case PRPTY:\n");
134 #endif
135 			orig = op->sqr->desc->mon_desc;
136 			orig_op = op;
137 			num = 0;
138 			while (op && op->sqr->desc->mon_desc == orig) {
139 #ifdef DEBUG
140 				printf("iter: %d\n", num);
141 #endif
142 				num++;
143 #ifdef DEBUG
144 				printf("op = op->next ");
145 #endif
146 				op = op->next;
147 #ifdef DEBUG
148 				printf("[%d];\n", op);
149 #endif
150 			}
151 #ifdef DEBUG
152 			printf("num = %d\n");
153 #endif
154 			if (orig == 0) {
155 				printf("panic:  bad monopoly descriptor: orig = %d\n", orig);
156 				printf("player # %d\n", pl+1);
157 				printhold(pl);
158 				printf("orig_op = %d\n", orig_op);
159 				printf("orig_op->sqr->type = %d (PRPTY)\n", op->sqr->type);
160 				printf("orig_op->next = %d\n", op->next);
161 				printf("orig_op->sqr->desc = %d\n", op->sqr->desc);
162 				printf("op = %d\n", op);
163 				printf("op->sqr->type = %d (PRPTY)\n", op->sqr->type);
164 				printf("op->next = %d\n", op->next);
165 				printf("op->sqr->desc = %d\n", op->sqr->desc);
166 				printf("num = %d\n", num);
167 			}
168 #ifdef DEBUG
169 			printf("orig->num_in = %d\n", orig->num_in);
170 #endif
171 			if (num == orig->num_in)
172 				is_monop(orig, pl);
173 			else
174 				isnot_monop(orig);
175 			break;
176 		}
177 	}
178 }
179 /*
180  *	This routine sets things up as if it is a new monopoly
181  */
182 is_monop(mp, pl)
183 reg MON	*mp;
184 int	pl; {
185 
186 	reg char	*sp;
187 	reg int		i;
188 
189 	mp->owner = pl;
190 	mp->num_own = mp->num_in;
191 	for (i = 0; i < mp->num_in; i++)
192 		mp->sq[i]->desc->monop = TRUE;
193 	mp->name = mp->mon_n;
194 }
195 /*
196  *	This routine sets things up as if it is no longer a monopoly
197  */
198 isnot_monop(mp)
199 reg MON	*mp; {
200 
201 	reg char	*sp;
202 	reg int		i;
203 
204 	mp->owner = -1;
205 	for (i = 0; i < mp->num_in; i++)
206 		mp->sq[i]->desc->monop = FALSE;
207 	mp->name = mp->not_m;
208 }
209 /*
210  *	This routine gives a list of the current player's routine
211  */
212 list() {
213 
214 	printhold(player);
215 }
216 /*
217  *	This routine gives a list of a given players holdings
218  */
219 list_all() {
220 
221 	reg int	pl;
222 
223 	while ((pl=getinp("Whose holdings do you want to see? ", name_list)) < num_play)
224 		printhold(pl);
225 }
226 /*
227  *	This routine gives the players a chance before it exits.
228  */
229 void
230 quit() {
231 
232 	putchar('\n');
233 	if (getyn("Do you all really want to quit? ", yn) == 0)
234 		exit(0);
235 	signal(SIGINT, quit);
236 }
237 /*
238  *	This routine copies one structure to another
239  */
240 cpy_st(s1, s2, size)
241 reg int	*s1, *s2, size; {
242 
243 	size /= 2;
244 	while (size--)
245 		*s1++ = *s2++;
246 }
247