From 77e3814f0c0e3dea4d0032e25666f77e6f83bfff Mon Sep 17 00:00:00 2001
From: cgd <cgd@NetBSD.org>
Date: Sun, 21 Mar 1993 09:45:37 +0000
Subject: initial import of 386bsd-0.1 sources

---
 backgammon/teachgammon/tutor.c | 155 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 155 insertions(+)
 create mode 100644 backgammon/teachgammon/tutor.c

(limited to 'backgammon/teachgammon/tutor.c')

diff --git a/backgammon/teachgammon/tutor.c b/backgammon/teachgammon/tutor.c
new file mode 100644
index 00000000..2c96308c
--- /dev/null
+++ b/backgammon/teachgammon/tutor.c
@@ -0,0 +1,155 @@
+/*
+ * 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[] = "@(#)tutor.c	5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+#include "back.h"
+#include "tutor.h"
+
+extern int	maxmoves;
+extern char	*finis[];
+
+extern struct situatn	test[];
+
+static char	better[] = "That is a legal move, but there is a better one.\n";
+
+tutor ()  {
+	register int	i, j;
+
+	i = 0;
+	begscr = 18;
+	cturn = -1;
+	home = 0;
+	bar = 25;
+	inptr = &in[0];
+	inopp = &in[1];
+	offptr = &off[0];
+	offopp = &off[1];
+	Colorptr = &color[0];
+	colorptr = &color[2];
+	colen = 5;
+	wrboard();
+
+	while (1)  {
+		if (! brdeq(test[i].brd,board))  {
+			if (tflag && curr == 23)
+				curmove (18,0);
+			writel (better);
+			nexturn();
+			movback (mvlim);
+			if (tflag)  {
+				refresh();
+				clrest ();
+			}
+			if ((! tflag) || curr == 19)  {
+				proll();
+				writec ('\t');
+			}
+			else
+				curmove (curr > 19? curr-2: curr+4,25);
+			getmove();
+			if (cturn == 0)
+				leave();
+			continue;
+		}
+		if (tflag)
+			curmove (18,0);
+		text (*test[i].com);
+		if (! tflag)
+			writec ('\n');
+		if (i == maxmoves)
+			break;
+		D0 = test[i].roll1;
+		D1 = test[i].roll2;
+		d0 = 0;
+		mvlim = 0;
+		for (j = 0; j < 4; j++)  {
+			if (test[i].mp[j] == test[i].mg[j])
+				break;
+			p[j] = test[i].mp[j];
+			g[j] = test[i].mg[j];
+			mvlim++;
+		}
+		if (mvlim)
+			for (j = 0; j < mvlim; j++)
+				if (makmove(j))
+					writel ("AARGH!!!\n");
+		if (tflag)
+			refresh();
+		nexturn();
+		D0 = test[i].new1;
+		D1 = test[i].new2;
+		d0 = 0;
+		i++;
+		mvlim = movallow();
+		if (mvlim)  {
+			if (tflag)
+				clrest();
+			proll();
+			writec('\t');
+			getmove();
+			if (tflag)
+				refresh();
+			if (cturn == 0)
+				leave();
+		}
+	}
+	leave();
+}
+
+clrest ()  {
+	register int	r, c, j;
+
+	r = curr;
+	c = curc;
+	for (j = r+1; j < 24; j++)  {
+		curmove (j,0);
+		cline();
+	}
+	curmove (r,c);
+}
+
+brdeq (b1,b2)
+register int  *b1, *b2;
+
+{
+	register int  *e;
+
+	e = b1+26;
+	while (b1 < e)
+		if (*b1++ != *b2++)
+			return(0);
+	return(1);
+}
-- 
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