minix/games/monop/misc.c

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/* $NetBSD: misc.c,v 1.23 2012/06/19 05:35:32 dholland Exp $ */
/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: misc.c,v 1.23 2012/06/19 05:35:32 dholland Exp $");
#endif
#endif /* not lint */
#include <ctype.h>
#include <limits.h>
#include <signal.h>
#include <errno.h>
#include "monop.h"
static void is_monop(MON *, int);
/*
* This routine executes a truncated set of commands until a
* "yes or "no" answer is gotten.
*/
int
getyn(const char *prompt)
{
int com;
for (;;)
if ((com=getinp(prompt, yncoms)) < 2)
return com;
else
(*func[com-2])();
}
/*
* This routine tells the player if he's out of money.
*/
void
notify(void)
{
if (cur_p->money < 0)
printf("That leaves you $%d in debt\n", -cur_p->money);
else if (cur_p->money == 0)
printf("that leaves you broke\n");
else if (fixing && !told_em && cur_p->money > 0) {
printf("-- You are now Solvent ---\n");
told_em = TRUE;
}
}
/*
* This routine switches to the next player
*/
void
next_play(void)
{
player = (player + 1) % num_play;
cur_p = &play[player];
num_doub = 0;
}
/*
* This routine gets an integer from the keyboard after the
* given prompt.
*/
int
get_int(const char *prompt)
{
long num;
char *sp;
char buf[257];
for (;;) {
printf("%s", prompt);
fgets(buf, sizeof(buf), stdin);
/* if stdin is closed we cant really play anymore */
if (feof(stdin))
quit();
sp = strchr(buf, '\n');
if (sp)
*sp = '\0';
errno = 0;
num = strtol(buf, &sp, 10);
if (errno || strlen(sp) > 0 || num < 0 || num >= INT_MAX) {
printf("I can't understand that\n");
continue;
}
return num;
}
}
/*
* This routine sets the monopoly flag from the list given.
*/
void
set_ownlist(int pl)
{
int num; /* general counter */
MON *orig; /* remember starting monop ptr */
OWN *op; /* current owned prop */
OWN *orig_op; /* original prop before loop */
op = play[pl].own_list;
#ifdef DEBUG
printf("op [%p] = play[pl [%d] ].own_list;\n", op, pl);
#endif
while (op) {
#ifdef DEBUG
printf("op->sqr->type = %d\n", op->sqr->type);
#endif
switch (op->sqr->type) {
case UTIL:
#ifdef DEBUG
printf(" case UTIL:\n");
#endif
for (num = 0; op && op->sqr->type == UTIL;
op = op->next)
num++;
play[pl].num_util = num;
#ifdef DEBUG
printf("play[pl].num_util = num [%d];\n", num);
#endif
break;
case RR:
#ifdef DEBUG
printf(" case RR:\n");
#endif
for (num = 0; op && op->sqr->type == RR;
op = op->next) {
#ifdef DEBUG
printf("iter: %d\n", num);
printf("op = %p, op->sqr = %p, "
"op->sqr->type = %d\n", op, op->sqr,
op->sqr->type);
#endif
num++;
}
play[pl].num_rr = num;
#ifdef DEBUG
printf("play[pl].num_rr = num [%d];\n", num);
#endif
break;
case PRPTY:
#ifdef DEBUG
printf(" case PRPTY:\n");
#endif
orig = op->sqr->desc->mon_desc;
orig_op = op;
num = 0;
while (op && op->sqr->desc->mon_desc == orig) {
#ifdef DEBUG
printf("iter: %d\n", num);
#endif
num++;
#ifdef DEBUG
printf("op = op->next ");
#endif
op = op->next;
#ifdef DEBUG
printf("[%p];\n", op);
#endif
}
#ifdef DEBUG
printf("num = %d\n", num);
#endif
if (orig == NULL) {
printf("panic: bad monopoly descriptor: "
"orig = %p\n", orig);
printf("player # %d\n", pl+1);
printhold(pl);
printf("orig_op = %p\n", orig_op);
if (orig_op) {
printf("orig_op->sqr->type = %d (PRPTY)\n",
orig_op->sqr->type);
printf("orig_op->next = %p\n",
orig_op->next);
printf("orig_op->sqr->desc = %p\n",
orig_op->sqr->desc);
}
printf("op = %p\n", op);
if (op) {
printf("op->sqr->type = %d (PRPTY)\n",
op->sqr->type);
printf("op->next = %p\n", op->next);
printf("op->sqr->desc = %p\n",
op->sqr->desc);
}
printf("num = %d\n", num);
exit(1);
}
#ifdef DEBUG
printf("orig->num_in = %d\n", orig->num_in);
#endif
if (num == orig->num_in)
is_monop(orig, pl);
else
is_not_monop(orig);
break;
}
}
}
/*
* This routine sets things up as if it is a new monopoly
*/
static void
is_monop(MON *mp, int pl)
{
int i;
mp->owner = pl;
mp->num_own = mp->num_in;
for (i = 0; i < mp->num_in; i++)
mp->sq[i]->desc->monop = TRUE;
mp->name = mp->mon_n;
}
/*
* This routine sets things up as if it is no longer a monopoly
*/
void
is_not_monop(MON *mp)
{
int i;
mp->owner = -1;
for (i = 0; i < mp->num_in; i++)
mp->sq[i]->desc->monop = FALSE;
mp->name = mp->not_m;
}
/*
* This routine gives a list of the current player's routine
*/
void
list(void)
{
printhold(player);
}
/*
* This routine gives a list of a given players holdings
*/
void
list_all(void)
{
int pl;
while ((pl = getinp("Whose holdings do you want to see? ", name_list))
< num_play)
printhold(pl);
}
/*
* This routine gives the players a chance before it exits.
*/
void
quit(void)
{
putchar('\n');
/* We dont even have a chance to input y/n if stdin is closed */
if (feof(stdin))
exit(0);
if (getyn("Do you all really want to quit? ") == 0)
exit(0);
}