From 50c9b42e6cc2fe234b971b4e514dc10cbd14c9e4 Mon Sep 17 00:00:00 2001
From: Paul Janzen <pjanzen@cvs.openbsd.org>
Date: Sun, 28 Jul 2002 08:44:15 +0000
Subject: Tidy the code, follow the rules more closely (and document where we
 diverge), and make save files work.  The last stops a number of segfaults.

---
 games/monop/houses.c | 108 ++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 95 insertions(+), 13 deletions(-)

(limited to 'games/monop/houses.c')

diff --git a/games/monop/houses.c b/games/monop/houses.c
index 3b089ff3773..a033011e734 100644
--- a/games/monop/houses.c
+++ b/games/monop/houses.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: houses.c,v 1.3 2002/02/16 21:27:10 millert Exp $	*/
+/*	$OpenBSD: houses.c,v 1.4 2002/07/28 08:44:14 pjanzen Exp $	*/
 /*	$NetBSD: houses.c,v 1.3 1995/03/23 08:34:40 cgd Exp $	*/
 
 /*
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)houses.c	8.1 (Berkeley) 5/31/93";
 #else
-static char rcsid[] = "$OpenBSD: houses.c,v 1.3 2002/02/16 21:27:10 millert Exp $";
+static const char rcsid[] = "$OpenBSD: houses.c,v 1.4 2002/07/28 08:44:14 pjanzen Exp $";
 #endif
 #endif /* not lint */
 
@@ -52,6 +52,9 @@ static MON	*monops[N_MON];
 static void	buy_h(MON *);
 static void	sell_h(MON *);
 static void	list_cur(MON *);
+static int	avail_houses();
+static int	avail_hotels();
+static bool	can_only_buy_hotel(MON *);
 
 /*
  *	These routines deal with buying and selling houses
@@ -62,7 +65,7 @@ buy_houses()
 	int	num_mon;
 	MON	*mp;
 	OWN	*op;
-	bool	good,got_morg;
+	bool	good, got_morg;
 	int	i,p;
 
 over:
@@ -79,9 +82,9 @@ over:
 			got_morg = good = FALSE;
 			for (i = 0; i < mp->num_in; i++) {
 				if (op->sqr->desc->morg)
-					got_morg++;
+					got_morg = TRUE;
 				if (op->sqr->desc->houses != 5)
-					good++;
+					good = TRUE;
 				op = op->next;
 			}
 			if (!good || got_morg)
@@ -118,11 +121,24 @@ buy_h(mnp)
 	MON	*mp;
 	int	price;
 	shrt	input[3],temp[3];
-	int	tot;
+	int	tot, tot2;
 	PROP	*pp;
+	int	nhous, nhot;
+	bool chot;
 
 	mp = mnp;
 	price = mp->h_cost * 50;
+	nhous = avail_houses();
+	nhot = avail_hotels();
+	chot = can_only_buy_hotel(mnp);
+	if (nhous == 0 && !chot) {
+		printf("Building shortage:  no houses available.");
+		return;
+	}
+	if (nhot == 0 && chot) {
+		printf("Building shortage:  no hotels available.");
+		return;
+	}
 blew_it:
 	list_cur(mp);
 	printf("Houses will cost $%d\n", price);
@@ -136,7 +152,7 @@ over:
 			temp[i] = 5;
 			continue;
 		}
-		(void)sprintf(cur_prop, "%s (%d): ",
+		(void)snprintf(cur_prop, sizeof(cur_prop), "%s (%d): ",
 			mp->sq[i]->name, pp->houses);
 		input[i] = get_int(cur_prop);
 		temp[i] = input[i] + pp->houses;
@@ -153,10 +169,27 @@ err:		printf("That makes the spread too wide.  Try again\n");
 	}
 	else if (mp->num_in == 2 && abs(temp[0] - temp[1]) > 1)
 		goto err;
-	for (tot = i = 0; i < mp->num_in; i++)
-		tot += input[i];
+	for (tot = tot2 = i = 0; i < mp->num_in; i++) {
+		if (temp[i] == 5)
+			tot2++;
+		else
+			tot += input[i];
+	}
+	if (tot > nhous) {
+		printf(
+"You have asked for %d house%s but only %d are available.  Try again\n",
+		    tot, tot == 1 ? "":"s", nhous);
+		goto blew_it;
+	} else if (tot2 > nhot) {
+		printf(
+"You have asked for %d hotel%s but only %d are available.  Try again\n",
+		    tot2, tot2 == 1 ? "":"s", nhot);
+		goto blew_it;
+	}
+
 	if (tot) {
-		printf("You asked for %d houses for $%d\n", tot, tot * price);
+		printf("You asked for %d house%s and %d hotel%s for $%d\n", tot,
+		    tot == 1 ? "" : "s", tot2, tot2 == 1 ? "" : "s", tot * price);
 		if (getyn("Is that ok? ") == 0) {
 			cur_p->money -= tot * price;
 			for (tot = i = 0; i < mp->num_in; i++)
@@ -237,10 +270,11 @@ over:
 			continue;
 		}
 		if (pp->houses < 5)
-			(void)sprintf(cur_prop,"%s (%d): ",
+			(void)snprintf(cur_prop, sizeof(cur_prop), "%s (%d): ",
 				mp->sq[i]->name,pp->houses);
 		else
-			(void)sprintf(cur_prop,"%s (H): ",mp->sq[i]->name);
+			(void)snprintf(cur_prop, sizeof(cur_prop), "%s (H): ",
+			    mp->sq[i]->name);
 		input[i] = get_int(cur_prop);
 		temp[i] = pp->houses - input[i];
 		if (temp[i] < 0) {
@@ -258,7 +292,8 @@ err:		printf("That makes the spread too wide.  Try again\n");
 	for (tot = i = 0; i < mp->num_in; i++)
 		tot += input[i];
 	if (tot) {
-		printf("You asked to sell %d houses for $%d\n",tot,tot * price);
+		printf("You asked to sell %d house%s for $%d\n", tot,
+		    tot == 1 ? "" : "s", tot * price);
 		if (getyn("Is that ok? ") == 0) {
 			cur_p->money += tot * price;
 			for (tot = i = 0; i < mp->num_in; i++)
@@ -283,3 +318,50 @@ list_cur(mp)
 	}
 	putchar('\n');
 }
+
+static int
+avail_houses()
+{
+	int i, c;
+	SQUARE *sqp;
+
+	c = 0;
+	for (i = 0; i < N_SQRS; i++) {
+		sqp = &board[i];
+		if (sqp->type == PRPTY && sqp->owner >= 0 && sqp->desc->monop) {
+			if (sqp->desc->houses < 5 && sqp->desc->houses > 0)
+				c += sqp->desc->houses;
+		}
+	}
+	return(N_HOUSE - c);
+}
+
+static int
+avail_hotels()
+{
+	int i, c;
+	SQUARE *sqp;
+
+	c = 0;
+	for (i = 0; i < N_SQRS; i++) {
+		sqp = &board[i];
+		if (sqp->type == PRPTY && sqp->owner >= 0 && sqp->desc->monop) {
+			if (sqp->desc->houses == 5)
+				c++;
+		}
+	}
+	return(N_HOTEL - c);
+}
+
+static bool
+can_only_buy_hotel(mp)
+	MON	*mp;
+{
+	int i;
+
+	for (i = 0; i < mp->num_in; i++) {
+		if (mp->sq[i]->desc->houses < 4)
+			return(FALSE);
+	}
+	return(TRUE);
+}
-- 
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