Bring in the 4.4 Lite games directory, modulo man page changes and segregation

of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh

1 files changed, 233 insertions, 0 deletions

diff --git a/games/sail/misc.c b/games/sail/misc.c
new file mode 100644
index 0000000..29e7899
--- /dev/null
+++ b/games/sail/misc.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright (c) 1983, 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 5/31/93";
+#endif /* not lint */
+
+#include "externs.h"
+#include "pathnames.h"
+
+#define distance(x,y) (abs(x) >= abs(y) ? abs(x) + abs(y)/2 : abs(y) + abs(x)/2)
+
+/* XXX */
+range(from, to)
+struct ship *from, *to;
+{
+	register bow1r, bow1c, bow2r, bow2c;
+	int stern1r, stern1c, stern2c, stern2r;
+	register int bb, bs, sb, ss, result;
+
+	if (!to->file->dir)
+		return -1;
+	stern1r = bow1r = from->file->row;
+	stern1c = bow1c = from->file->col;
+	stern2r = bow2r = to->file->row;
+	stern2c = bow2c = to->file->col;
+	result = bb = distance(bow2r - bow1r, bow2c - bow1c);
+	if (bb < 5) {
+		stern2r += dr[to->file->dir];
+		stern2c += dc[to->file->dir];
+		stern1r += dr[from->file->dir];
+		stern1c += dc[from->file->dir];
+		bs = distance((bow2r - stern1r), (bow2c - stern1c));
+		sb = distance((bow1r - stern2r), (bow1c - stern2c));
+		ss = distance((stern2r - stern1r) ,(stern2c - stern1c));
+		result = min(bb, min(bs, min(sb, ss)));
+	}
+	return result;
+}
+
+struct ship *
+closestenemy(from, side, anyship)
+register struct ship *from;
+char side, anyship;
+{
+	register struct ship *sp;
+	register char a;
+	int olddist = 30000, dist;
+	struct ship *closest = 0;
+
+	a = capship(from)->nationality;
+	foreachship(sp) {
+		if (sp == from)
+			continue;
+		if (sp->file->dir == 0)
+			continue;
+		if (a == capship(sp)->nationality && !anyship)
+			continue;
+		if (side && gunsbear(from, sp) != side)
+			continue;
+		dist = range(from, sp);
+		if (dist < olddist) {
+			closest = sp;
+			olddist = dist;
+		}
+	}
+	return closest;
+}
+
+angle(dr, dc)
+register dr, dc;
+{
+	register i;
+
+	if (dc >= 0 && dr > 0)
+		i = 0;
+	else if (dr <= 0 && dc > 0)
+		i = 2;
+	else if (dc <= 0 && dr < 0)
+		i = 4;
+	else
+		i = 6;
+	dr = abs(dr);
+	dc = abs(dc);
+	if ((i == 0 || i == 4) && dc * 2.4 > dr) {
+		i++;
+		if (dc > dr * 2.4)
+			i++;
+	} else if ((i == 2 || i == 6) && dr * 2.4 > dc) {
+		i++;
+		if (dr > dc * 2.4)
+			i++;
+	}
+	return i % 8 + 1;
+}
+
+gunsbear(from, to)		/* checks for target bow or stern */
+register struct ship *from, *to;
+{
+	int Dr, Dc, i;
+	register ang;
+
+	Dr = from->file->row - to->file->row;
+	Dc = to->file->col - from->file->col;
+	for (i = 2; i; i--) {
+		if ((ang = angle(Dr, Dc) - from->file->dir + 1) < 1)
+			ang += 8;
+		if (ang >= 2 && ang <= 4)
+			return 'r';
+		if (ang >= 6 && ang <= 7)
+			return 'l';
+		Dr += dr[to->file->dir];
+		Dc += dc[to->file->dir];
+	}
+	return 0;
+}
+
+portside(from, on, quick)
+register struct ship *from, *on;
+int quick;			/* returns true if fromship is */
+{				/* shooting at onship's starboard side */
+	register ang;
+	register Dr, Dc;
+
+	Dr = from->file->row - on->file->row;
+	Dc = on->file->col - from->file->col;
+	if (quick == -1) {
+		Dr += dr[on->file->dir];
+		Dc += dc[on->file->dir];
+	}
+	ang = angle(Dr, Dc);
+	if (quick != 0)
+		return ang;
+	ang = (ang + 4 - on->file->dir - 1) % 8 + 1;
+	return ang < 5;
+}
+
+colours(sp)
+register struct ship *sp;
+{
+	register char flag;
+
+	if (sp->file->struck)
+		flag = '!';
+	if (sp->file->explode)
+		flag = '#';
+	if (sp->file->sink)
+		flag = '~';
+	if (sp->file->struck)
+		return flag;
+	flag = *countryname[capship(sp)->nationality];
+	return sp->file->FS ? flag : tolower(flag);
+}
+
+#include <sys/file.h>
+log(s)
+register struct ship *s;
+{
+	FILE *fp;
+	int persons;
+	int n;
+	struct logs log[NLOG];
+	float net;
+	register struct logs *lp;
+
+	if ((fp = fopen(_PATH_LOGFILE, "r+")) == NULL)
+		return;
+#ifdef LOCK_EX
+	if (flock(fileno(fp), LOCK_EX) < 0)
+		return;
+#endif
+	net = (float)s->file->points / s->specs->pts;
+	persons = getw(fp);
+	n = fread((char *)log, sizeof(struct logs), NLOG, fp);
+	for (lp = &log[n]; lp < &log[NLOG]; lp++)
+		lp->l_name[0] = lp->l_uid = lp->l_shipnum
+			= lp->l_gamenum = lp->l_netpoints = 0;
+	rewind(fp);
+	if (persons < 0)
+		(void) putw(1, fp);
+	else
+		(void) putw(persons + 1, fp);
+	for (lp = log; lp < &log[NLOG]; lp++)
+		if (net > (float)lp->l_netpoints
+		    / scene[lp->l_gamenum].ship[lp->l_shipnum].specs->pts) {
+			(void) fwrite((char *)log,
+				sizeof (struct logs), lp - log, fp);
+			(void) strcpy(log[NLOG-1].l_name, s->file->captain);
+			log[NLOG-1].l_uid = getuid();
+			log[NLOG-1].l_shipnum = s->file->index;
+			log[NLOG-1].l_gamenum = game;
+			log[NLOG-1].l_netpoints = s->file->points;
+			(void) fwrite((char *)&log[NLOG-1],
+				sizeof (struct logs), 1, fp);
+			(void) fwrite((char *)lp,
+				sizeof (struct logs), &log[NLOG-1] - lp, fp);
+			break;
+		}
+#ifdef LOCK_EX
+	(void) flock(fileno(fp), LOCK_UN);
+#endif
+	(void) fclose(fp);
+}