initial import of 386bsd-0.1 sources

1 files changed, 101 insertions, 0 deletions

diff --git a/trek/visual.c b/trek/visual.c
new file mode 100644
index 00000000..a4f06c07
--- /dev/null
+++ b/trek/visual.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 1980 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[] = "@(#)visual.c	5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+# include	"trek.h"
+
+/*
+**  VISUAL SCAN
+**
+**	A visual scan is made in a particular direction of three sectors
+**	in the general direction specified.  This takes time, and
+**	Klingons can attack you, so it should be done only when sensors
+**	are out.
+*/
+
+/* This struct[] has the delta x, delta y for particular directions */
+struct xy	Visdelta[11] =
+{
+	-1,	-1,
+	-1,	 0,
+	-1,	 1,
+	 0,	 1,
+	 1,	 1,
+	 1,	 0,
+	 1,	-1,
+	 0,	-1,
+	-1,	-1,
+	-1,	 0,
+	-1,	 1
+};
+
+visual()
+{
+	register int		ix, iy;
+	int			co;
+	register struct xy	*v;
+
+	co = getintpar("direction");
+	if (co < 0 || co > 360)
+		return;
+	co = (co + 22) / 45;
+	v = &Visdelta[co];
+	ix = Ship.sectx + v->x;
+	iy = Ship.secty + v->y;
+	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
+		co = '?';
+	else
+		co = Sect[ix][iy];
+	printf("%d,%d %c ", ix, iy, co);
+	v++;
+	ix = Ship.sectx + v->x;
+	iy = Ship.secty + v->y;
+	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
+		co = '?';
+	else
+		co = Sect[ix][iy];
+	printf("%c ", co);
+	v++;
+	ix = Ship.sectx + v->x;
+	iy = Ship.secty + v->y;
+	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
+		co = '?';
+	else
+		co = Sect[ix][iy];
+	printf("%c %d,%d\n", co, ix, iy);
+	Move.time = 0.05;
+	Move.free = 0;
+}