NetBSD-5.0.2/games/monop/prop.c

/*	$NetBSD: prop.c,v 1.19 2008/02/24 05:53:33 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[] = "@(#)prop.c	8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: prop.c,v 1.19 2008/02/24 05:53:33 dholland Exp $");
#endif
#endif /* not lint */

#include <stdlib.h>

#include "monop.h"

static int value(SQUARE *);

/*
 *	This routine deals with buying property, setting all the
 * appropriate flags.
 */
void
buy(playernum, sqrp)
	int playernum;
	SQUARE *sqrp;
{
	trading = FALSE;
	sqrp->owner = playernum;
	add_list(playernum, &(play[playernum].own_list), cur_p->loc);
}

/*
 *	This routine adds an item to the list.
 */
void
add_list(plr, head, op_sqr)
	int plr;
	OWN **head;
	int op_sqr;
{
	int val;
	OWN *tp, *last_tp;
	OWN *op;

	op = calloc(1, sizeof (OWN));
	if (op == NULL)
		errx(1, "out of memory");
	op->sqr = &board[op_sqr];
	val = value(op->sqr);
	last_tp = NULL;
	for (tp = *head; tp && value(tp->sqr) < val; tp = tp->next)
		if (val == value(tp->sqr)) {
			free(op);
			return;
		}
		else
			last_tp = tp;
	op->next = tp;
	if (last_tp != NULL)
		last_tp->next = op;
	else
		*head = op;
	if (!trading)
		set_ownlist(plr);
}

/*
 *	This routine deletes property from the list.
 */
void
del_list(int plr, OWN **head, short op_sqr)
{
	OWN *op, *last_op;

	switch (board[op_sqr].type) {
	  case PRPTY:
		board[op_sqr].desc->mon_desc->num_own--;
		break;
	  case RR:
		play[plr].num_rr--;
		break;
	  case UTIL:
		play[plr].num_util--;
		break;
	}
	last_op = NULL;
	for (op = *head; op; op = op->next)
		if (op->sqr == &board[op_sqr])
			break;
		else
			last_op = op;
	if (op == NULL)
		return;
	if (last_op == NULL)
		*head = op->next;
	else {
		last_op->next = op->next;
		free(op);
	}
}

/*
 *	This routine calculates the value for sorting of the
 * given square.
 */
static int
value(sqp)
	SQUARE *sqp;
{
	int sqr;

	sqr = sqnum(sqp);
	switch (sqp->type) {
	  case SAFE:
		return 0;
	  default:		/* Specials, etc */
		return 1;
	  case UTIL:
		if (sqr == 12)
			return 2;
		else
			return 3;
	  case RR:
		return 4 + sqr/10;
	  case PRPTY:
		return 8 + (sqp->desc) - prop;
	}
}

/*
 * This routine accepts bids for the current piece of property.
 */
void
bid()
{
	static bool in[MAX_PL];
	int i, num_in, cur_max;
	char buf[257];
	int cur_bid;

	printf("\nSo it goes up for auction.  Type your bid after your name\n");
	for (i = 0; i < num_play; i++)
		in[i] = TRUE;
	i = -1;
	cur_max = 0;
	num_in = num_play;
	while (num_in > 1 || (cur_max == 0 && num_in > 0)) {
		i = (i + 1) % num_play;
		if (in[i]) {
			do {
				(void)snprintf(buf, sizeof(buf), "%s: ",
				    name_list[i]);
				cur_bid = get_int(buf);
				if (cur_bid == 0) {
					in[i] = FALSE;
					if (--num_in == 0)
						break;
				} else if (cur_bid <= cur_max) {
					printf("You must bid higher than %d "
					    "to stay in\n", cur_max);
					printf("(bid of 0 drops you out)\n");
				} else if (cur_bid > play[i].money) {
					printf("You can't bid more than your cash ($%d)\n",
					    play[i].money);
					cur_bid = -1;
				}
			} while (cur_bid != 0 && cur_bid <= cur_max);
			cur_max = (cur_bid ? cur_bid : cur_max);
		}
	}
	if (cur_max != 0) {
		while (!in[i])
			i = (i + 1) % num_play;
		printf("It goes to %s (%d) for $%d\n",play[i].name,i+1,cur_max);
		buy(i, &board[cur_p->loc]);
		play[i].money -= cur_max;
	}
	else
		printf("Nobody seems to want it, so we'll leave it for "
		    "later\n");
}

/*
 *	This routine calculates the value of the property
 * of given player.
 */
int
prop_worth(plp)
	PLAY *plp;
{
	OWN *op;
	int worth;

	worth = 0;
	for (op = plp->own_list; op; op = op->next) {
		if (op->sqr->type == PRPTY && op->sqr->desc->monop)
			worth += op->sqr->desc->mon_desc->h_cost * 50 *
			    op->sqr->desc->houses;
		worth += op->sqr->cost;
	}
	return worth;
}