Wrap compiler-specific flags with HAVE_GCC and HAVE_PCC as necessary. Add a few flags...

[bsdgames-darwin.git] / hack / hack.track.c

diff --git a/hack/hack.track.c b/hack/hack.track.c
index 5960ead6d74c45b0754f5d01c33d8b8d7f53bdd4..844bab5a2d8c395458ba6a11357dc10650a12fbb 100644 (file)
--- a/hack/hack.track.c
+++ b/hack/hack.track.c
@@ -1,43 +1,114 @@
+/*     $NetBSD: hack.track.c,v 1.6 2008/01/28 06:55:42 dholland Exp $  */
+
 /*
- * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
+ * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
+ * Amsterdam
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * - 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.
+ *
+ * - Neither the name of the Stichting Centrum voor Wiskunde en
+ * Informatica, 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER
+ * 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.
  */
 
+/*
+ * Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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
-static char rcsid[] = "$Id: hack.track.c,v 1.2 1993/08/02 17:19:31 mycroft Exp $";
-#endif /* not lint */
+__RCSID("$NetBSD: hack.track.c,v 1.6 2008/01/28 06:55:42 dholland Exp $");
+#endif                         /* not lint */
 
 #include "hack.h"
+#include "extern.h"
 
 #define        UTSZ    50
 
-coord utrack[UTSZ];
-int utcnt = 0;
-int utpnt = 0;
+coord           utrack[UTSZ];
+int             utcnt = 0;
+int             utpnt = 0;
 
-initrack(){
+void
+initrack()
+{
        utcnt = utpnt = 0;
 }
 
 /* add to track */
-settrack(){
-       if(utcnt < UTSZ) utcnt++;
-       if(utpnt == UTSZ) utpnt = 0;
+void
+settrack()
+{
+       if (utcnt < UTSZ)
+               utcnt++;
+       if (utpnt == UTSZ)
+               utpnt = 0;
        utrack[utpnt].x = u.ux;
        utrack[utpnt].y = u.uy;
        utpnt++;
 }
 
-coord *
-gettrack(x,y) register x,y; {
-register int i,cnt,dist;
-coord tc;
+coord          *
+gettrack(x, y)
+       int x, y;
+{
+       int             i, cnt, distsq;
+       coord           tc;
+
        cnt = utcnt;
-       for(i = utpnt-1; cnt--; i--){
-               if(i == -1) i = UTSZ-1;
+       for (i = utpnt - 1; cnt--; i--) {
+               if (i == -1)
+                       i = UTSZ - 1;
                tc = utrack[i];
-               dist = (x-tc.x)*(x-tc.x) + (y-tc.y)*(y-tc.y);
-               if(dist < 3)
-                       return(dist ? &(utrack[i]) : 0);
+               distsq = (x - tc.x) * (x - tc.x) + (y - tc.y) * (y - tc.y);
+               if (distsq < 3)
+                       return (distsq ? &(utrack[i]) : 0);
        }
-       return(0);
+       return (0);
 }