Sprinkle some "bool". And don't use '\0' to mean 'false'.

5 files changed, 22 insertions, 20 deletions

diff --git a/sail/dr_2.c b/sail/dr_2.c
index 56719fbd..460f24ff 100644
--- a/sail/dr_2.c
+++ b/sail/dr_2.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: dr_2.c,v 1.23 2009/03/14 19:35:13 dholland Exp $	*/
+/*	$NetBSD: dr_2.c,v 1.24 2009/03/14 20:04:43 dholland Exp $	*/
 
 /*
  * Copyright (c) 1983, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)dr_2.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: dr_2.c,v 1.23 2009/03/14 19:35:13 dholland Exp $");
+__RCSID("$NetBSD: dr_2.c,v 1.24 2009/03/14 20:04:43 dholland Exp $");
 #endif
 #endif /* not lint */
 
@@ -53,7 +53,7 @@ static void move_ship(struct ship *, const char *, unsigned char *,
 		      short *, short *, int *);
 static void try(struct ship *f, struct ship *t,
 		char *command, size_t commandmax, char *temp, size_t tempmax,
-		int ma, int ta, int af, int vma, int dir, int *high,
+		int ma, int ta, bool af, int vma, int dir, int *high,
 		int rakeme);
 static void rmend(char *);
 
@@ -158,7 +158,7 @@ str_end(const char *str)
 
 void
 closeon(struct ship *from, struct ship *to, char *command, size_t commandmax,
-	int ta, int ma, int af)
+	int ta, int ma, bool af)
 {
 	int high;
 	char temp[10];
@@ -246,7 +246,7 @@ static void
 try(struct ship *f, struct ship *t,
     char *command, size_t commandmax,
     char *temp, size_t tempmax,
-    int ma, int ta, int af, int vma, int dir, int *high, int rakeme)
+    int ma, int ta, bool af, int vma, int dir, int *high, int rakeme)
 {
 	int new, n;
 	char st[4];
diff --git a/sail/dr_3.c b/sail/dr_3.c
index 2a66eafe..8d880c34 100644
--- a/sail/dr_3.c
+++ b/sail/dr_3.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: dr_3.c,v 1.17 2009/03/14 19:35:13 dholland Exp $	*/
+/*	$NetBSD: dr_3.c,v 1.18 2009/03/14 20:04:43 dholland Exp $	*/
 
 /*
  * Copyright (c) 1983, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)dr_3.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: dr_3.c,v 1.17 2009/03/14 19:35:13 dholland Exp $");
+__RCSID("$NetBSD: dr_3.c,v 1.18 2009/03/14 20:04:43 dholland Exp $");
 #endif
 #endif /* not lint */
 
@@ -64,7 +64,7 @@ moveall(void)
 	foreachship(sp) {
 		struct ship *closest;
 		int ma, ta;
-		char af;
+		bool af;
 
 		if (sp->file->captain[0] || sp->file->dir == 0)
 			continue;
diff --git a/sail/extern.h b/sail/extern.h
index d6bcbd48..485d7db6 100644
--- a/sail/extern.h
+++ b/sail/extern.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: extern.h,v 1.30 2009/03/14 19:35:13 dholland Exp $ */
+/*	$NetBSD: extern.h,v 1.31 2009/03/14 20:04:43 dholland Exp $ */
 
 /*
  * Copyright (c) 1983, 1993
@@ -32,6 +32,7 @@
  */
 
 #include <sys/types.h>
+#include <stdbool.h>
 
 #include "machdep.h"
 
@@ -306,7 +307,7 @@ int next(void);
 void thinkofgrapples(void);
 void checkup(void);
 void prizecheck(void);
-void closeon(struct ship *, struct ship *, char *, size_t, int, int, int);
+void closeon(struct ship *, struct ship *, char *, size_t, int, int, bool);
 
 /* dr_3.c */
 void moveall(void);
@@ -327,7 +328,7 @@ int mensent(struct ship *, struct ship *, int[3], struct ship **, int *, int);
 int dr_main(void);
 
 /* game.c */
-int maxturns(struct ship *, char *);
+int maxturns(struct ship *, bool *);
 int maxmove(struct ship *, int, int);
 
 /* lo_main.c */
diff --git a/sail/game.c b/sail/game.c
index adab8266..20d6d83c 100644
--- a/sail/game.c
+++ b/sail/game.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: game.c,v 1.12 2009/03/14 19:35:13 dholland Exp $	*/
+/*	$NetBSD: game.c,v 1.13 2009/03/14 20:04:43 dholland Exp $	*/
 
 /*
  * Copyright (c) 1983, 1993
@@ -34,21 +34,22 @@
 #if 0
 static char sccsid[] = "@(#)game.c	8.2 (Berkeley) 4/28/95";
 #else
-__RCSID("$NetBSD: game.c,v 1.12 2009/03/14 19:35:13 dholland Exp $");
+__RCSID("$NetBSD: game.c,v 1.13 2009/03/14 20:04:43 dholland Exp $");
 #endif
 #endif /* not lint */
 
 #include <sys/types.h>
+#include <stdbool.h>
 #include "extern.h"
 
 int
-maxturns(struct ship *ship, char *af)
+maxturns(struct ship *ship, bool *af)
 {
 	int turns;
 
 	turns = ship->specs->ta;
 	*af = (ship->file->drift > 1 && turns);
-	if (*af != '\0') {
+	if (*af != false) {
 		turns--;
 		if (ship->file->FS == 1)
 			turns = 0;
diff --git a/sail/pl_5.c b/sail/pl_5.c
index f973b509..06b9fa51 100644
--- a/sail/pl_5.c
+++ b/sail/pl_5.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: pl_5.c,v 1.21 2009/03/14 19:35:13 dholland Exp $	*/
+/*	$NetBSD: pl_5.c,v 1.22 2009/03/14 20:04:43 dholland Exp $	*/
 
 /*
  * Copyright (c) 1983, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)pl_5.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: pl_5.c,v 1.21 2009/03/14 19:35:13 dholland Exp $");
+__RCSID("$NetBSD: pl_5.c,v 1.22 2009/03/14 20:04:43 dholland Exp $");
 #endif
 #endif /* not lint */
 
@@ -56,8 +56,8 @@ acceptmove(void)
 {
 	int ta;
 	int ma;
-	char af;
-	int moved = 0;
+	bool af;
+	bool moved = false;
 	int vma, dir;
 	char promptstr[60];
 	char buf[60], last = '\0';
@@ -116,7 +116,7 @@ acceptmove(void)
 				*p-- = '\0';
 			}
 			last = '0';
-			moved = 1;
+			moved = true;
 			ma -= *p - '0';
 			vma -= *p - '0';
 			if ((ta < 0 && moved) || (vma < 0 && moved))