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houses.c revision 1.14
      1 /*	$NetBSD: houses.c,v 1.14 2008/02/24 03:26:26 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 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)houses.c	8.1 (Berkeley) 5/31/93";
     36 #else
     37 __RCSID("$NetBSD: houses.c,v 1.14 2008/02/24 03:26:26 dholland Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include "monop.h"
     42 
     43 static const char	*names[N_MON+2];
     44 static char	cur_prop[80];
     45 
     46 static MON	*monops[N_MON];
     47 
     48 static void buy_h(MON *);
     49 static void sell_h(MON *);
     50 static void list_cur(MON *);
     51 static int get_avail_houses(void);
     52 static int get_avail_hotels(void);
     53 static bool ready_for_hotels(MON *);
     54 
     55 /*
     56  *	These routines deal with buying and selling houses
     57  */
     58 void
     59 buy_houses()
     60 {
     61 	int num_mon;
     62 	MON *mp;
     63 	OWN *op;
     64 	bool good, got_morg;
     65 	int i,p;
     66 
     67 over:
     68 	num_mon = 0;
     69 	good = TRUE;
     70 	got_morg = FALSE;
     71 	for (op = cur_p->own_list; op && op->sqr->type != PRPTY; op = op->next)
     72 		continue;
     73 	while (op)
     74 		if (op->sqr->desc->monop) {
     75 			mp = op->sqr->desc->mon_desc;
     76 			names[num_mon] = (monops[num_mon]=mp)->name;
     77 			num_mon++;
     78 			got_morg = good = FALSE;
     79 			for (i = 0; i < mp->num_in; i++) {
     80 				if (op->sqr->desc->morg)
     81 					got_morg = TRUE;
     82 				if (op->sqr->desc->houses != 5)
     83 					good = TRUE;
     84 				op = op->next;
     85 			}
     86 			if (!good || got_morg)
     87 				--num_mon;
     88 		}
     89 		else
     90 			op = op->next;
     91 	if (num_mon == 0) {
     92 		if (got_morg)
     93 			printf("You can't build on mortgaged monopolies.\n");
     94 		else if (!good)
     95 			printf("You can't build any more.\n");
     96 		else
     97 			printf("But you don't have any monopolies!!\n");
     98 		return;
     99 	}
    100 	if (num_mon == 1)
    101 		buy_h(monops[0]);
    102 	else {
    103 		names[num_mon++] = "done";
    104 		names[num_mon--] = 0;
    105 		if ((p = getinp(
    106 		    "Which property do you wish to buy houses for? ",
    107 		    names)) == num_mon)
    108 			return;
    109 		buy_h(monops[p]);
    110 		goto over;
    111 	}
    112 }
    113 
    114 static void
    115 buy_h(mnp)
    116 	MON *mnp;
    117 {
    118 	int i;
    119 	MON *mp;
    120 	int price;
    121 	short input[3], result[3];
    122 	int wanted_houses, wanted_hotels;
    123 	int total_purchase;
    124 	PROP *pp;
    125 	int avail_houses, avail_hotels;
    126 	bool buying_hotels;
    127 
    128 	mp = mnp;
    129 	price = mp->h_cost * 50;
    130 
    131 	avail_houses = get_avail_houses();
    132 	avail_hotels = get_avail_hotels();
    133 	buying_hotels = ready_for_hotels(mnp);
    134 
    135 	if (avail_houses == 0 && !buying_hotels) {
    136 		printf("Building shortage:  no houses available.");
    137 		return;
    138 	}
    139 	if (avail_hotels == 0 && buying_hotels) {
    140 		printf("Building shortage:  no hotels available.");
    141 		return;
    142 	}
    143 
    144 blew_it:
    145 	list_cur(mp);
    146 	printf("Houses will cost $%d\n", price);
    147 	printf("How many houses do you wish to buy for\n");
    148 	for (i = 0; i < mp->num_in; i++) {
    149 		pp = mp->sq[i]->desc;
    150 over:
    151 		if (pp->houses == 5) {
    152 			printf("%s (H):\n", mp->sq[i]->name);
    153 			input[i] = 0;
    154 			result[i] = 5;
    155 			continue;
    156 		}
    157 		(void)snprintf(cur_prop, sizeof(cur_prop), "%s (%d): ",
    158 			mp->sq[i]->name, pp->houses);
    159 		input[i] = get_int(cur_prop);
    160 		result[i] = input[i] + pp->houses;
    161 		if (result[i] > 5 || result[i] < 0) {
    162 			printf("That's too many.  The most you can buy is %d\n",
    163 			    5 - pp->houses);
    164 				goto over;
    165 			}
    166 	}
    167 	if (mp->num_in == 3 &&
    168 	    (abs(result[0] - result[1]) > 1 ||
    169 	    abs(result[0] - result[2]) > 1 ||
    170 	     abs(result[1] - result[2]) > 1)) {
    171 err:		printf("That makes the spread too wide.  Try again\n");
    172 		goto blew_it;
    173 	}
    174 	else if (mp->num_in == 2 && abs(result[0] - result[1]) > 1)
    175 		goto err;
    176 
    177 	wanted_houses = 0;
    178 	wanted_hotels = 0;
    179 	total_purchase = 0;
    180 
    181 	for (i = 0; i < mp->num_in; i++) {
    182 		wanted_houses += input[i];
    183 		total_purchase += input[i];
    184 		if (result[i] == 5 && input[i] > 0) {
    185 			wanted_hotels++;
    186 			wanted_houses--;
    187 		}
    188 	}
    189 	if (wanted_houses > avail_houses) {
    190 		printf("You have asked for %d %s but only %d are available.  "
    191 		    "Try again\n",
    192 		    wanted_houses, wanted_houses == 1 ? "house" : "houses",
    193 		    avail_houses);
    194 		goto blew_it;
    195 	} else if (wanted_hotels > avail_hotels) {
    196 		printf("You have asked for %d %s but only %d are available.  "
    197 		    "Try again\n",
    198 		    wanted_hotels, wanted_hotels == 1 ? "hotel" : "hotels",
    199 		    avail_hotels);
    200 		goto blew_it;
    201 	}
    202 
    203 	if (total_purchase) {
    204 		printf("You asked for %d %s and %d %s for $%d\n",
    205 		    wanted_houses, wanted_houses == 1 ? "house" : "houses",
    206 		    wanted_hotels, wanted_hotels == 1 ? "hotel" : "hotels",
    207 		    total_purchase * price);
    208 		if (getyn("Is that ok? ") == 0) {
    209 			cur_p->money -= total_purchase * price;
    210 			for (i = 0; i < mp->num_in; i++)
    211 				mp->sq[i]->desc->houses = result[i];
    212 		}
    213 	}
    214 }
    215 
    216 /*
    217  *	This routine sells houses.
    218  */
    219 void
    220 sell_houses()
    221 {
    222 	int num_mon;
    223 	MON *mp;
    224 	OWN *op;
    225 	bool good;
    226 	int p;
    227 
    228 over:
    229 	num_mon = 0;
    230 	good = TRUE;
    231 	for (op = cur_p->own_list; op;)
    232 		if (op->sqr->type == PRPTY && op->sqr->desc->monop) {
    233 			mp = op->sqr->desc->mon_desc;
    234 			names[num_mon] = (monops[num_mon]=mp)->name;
    235 			num_mon++;
    236 			good = 0;
    237 			do
    238 				if (!good && op->sqr->desc->houses != 0)
    239 					good = TRUE;
    240 			while (op->next && op->sqr->desc->mon_desc == mp
    241 			    && (op = op->next));
    242 			if (!good)
    243 				--num_mon;
    244 		} else
    245 			op = op->next;
    246 	if (num_mon == 0) {
    247 		printf("You don't have any houses to sell!!\n");
    248 		return;
    249 	}
    250 	if (num_mon == 1)
    251 		sell_h(monops[0]);
    252 	else {
    253 		names[num_mon++] = "done";
    254 		names[num_mon--] = 0;
    255 		if ((p = getinp(
    256 		    "Which property do you wish to sell houses from? ",
    257 		    names)) == num_mon)
    258 			return;
    259 		sell_h(monops[p]);
    260 		notify();
    261 		goto over;
    262 	}
    263 }
    264 
    265 static void
    266 sell_h(mnp)
    267 	MON *mnp;
    268 {
    269 	int i;
    270 	MON *mp;
    271 	int price;
    272 	short input[3],temp[3];
    273 	int tot;
    274 	PROP *pp;
    275 
    276 	mp = mnp;
    277 	price = mp->h_cost * 25;
    278 blew_it:
    279 	printf("Houses will get you $%d apiece\n", price);
    280 	list_cur(mp);
    281 	printf("How many houses do you wish to sell from\n");
    282 	for (i = 0; i < mp->num_in; i++) {
    283 		pp = mp->sq[i]->desc;
    284 over:
    285 		if (pp->houses == 0) {
    286 			printf("%s (0):\n", mp->sq[i]->name);
    287 			input[i] = temp[i] = 0;
    288 			continue;
    289 		}
    290 		if (pp->houses < 5)
    291 			(void)snprintf(cur_prop, sizeof(cur_prop), "%s (%d): ",
    292 				mp->sq[i]->name,pp->houses);
    293 		else
    294 			(void)snprintf(cur_prop, sizeof(cur_prop), "%s (H): ",
    295 				mp->sq[i]->name);
    296 		input[i] = get_int(cur_prop);
    297 		temp[i] = pp->houses - input[i];
    298 		if (temp[i] < 0) {
    299 			printf(
    300 			    "That's too many.  The most you can sell is %d\n",
    301 			    pp->houses);
    302 				goto over;
    303 			}
    304 	}
    305 	if (mp->num_in == 3 && (abs(temp[0] - temp[1]) > 1 ||
    306 	    abs(temp[0] - temp[2]) > 1 || abs(temp[1] - temp[2]) > 1)) {
    307 err:		printf("That makes the spread too wide.  Try again\n");
    308 		goto blew_it;
    309 	}
    310 	else if (mp->num_in == 2 && abs(temp[0] - temp[1]) > 1)
    311 		goto err;
    312 	for (tot = i = 0; i < mp->num_in; i++)
    313 		tot += input[i];
    314 	if (tot) {
    315 		printf("You asked to sell %d house%s for $%d\n", tot,
    316 		    tot == 1 ? "" : "s", tot * price);
    317 		if (getyn("Is that ok? ") == 0) {
    318 			cur_p->money += tot * price;
    319 			for (tot = i = 0; i < mp->num_in; i++)
    320 				mp->sq[i]->desc->houses = temp[i];
    321 		}
    322 	}
    323 }
    324 
    325 static void
    326 list_cur(mp)
    327 	MON *mp;
    328 {
    329 	int i;
    330 	SQUARE *sqp;
    331 
    332 	for (i = 0; i < mp->num_in; i++) {
    333 		sqp = mp->sq[i];
    334 		if (sqp->desc->houses == 5)
    335 			printf("%s (H) ", sqp->name);
    336 		else
    337 			printf("%s (%d) ", sqp->name, sqp->desc->houses);
    338 	}
    339 	putchar('\n');
    340 }
    341 
    342 static int
    343 get_avail_houses(void)
    344 {
    345 	int i, c;
    346 	SQUARE *sqp;
    347 
    348 	c = 0;
    349 	for (i = 0; i < N_SQRS; i++) {
    350 		sqp = &board[i];
    351 		if (sqp->type == PRPTY && sqp->owner >= 0 && sqp->desc->monop) {
    352 			if (sqp->desc->houses < 5 && sqp->desc->houses > 0)
    353 				c += sqp->desc->houses;
    354 		}
    355 	}
    356 	return(N_HOUSE - c);
    357 }
    358 
    359 static int
    360 get_avail_hotels(void)
    361 {
    362 	int i, c;
    363 	SQUARE *sqp;
    364 
    365 	c = 0;
    366 	for (i = 0; i < N_SQRS; i++) {
    367 		sqp = &board[i];
    368 		if (sqp->type == PRPTY && sqp->owner >= 0 && sqp->desc->monop) {
    369 			if (sqp->desc->houses == 5)
    370 				c++;
    371 		}
    372 	}
    373 	return(N_HOTEL - c);
    374 }
    375 
    376 /*
    377  * If we can put a hotel on, we can't put any houses on, and if we can
    378  * put houses on, then we can't put a hotel on yet.
    379  */
    380 static bool
    381 ready_for_hotels(MON *mp)
    382 {
    383 	int i;
    384 
    385 	for (i = 0; i < mp->num_in; i++) {
    386 		if (mp->sq[i]->desc->houses < 4)
    387 			return(FALSE);
    388 	}
    389 	return(TRUE);
    390 }
    391