teach.c revision 1.16 
1/*	$OpenBSD: teach.c,v 1.16 2015/12/02 20:05:01 tb Exp $	*/
2
3/*
4 * Copyright (c) 1980, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <err.h>
33#include <unistd.h>
34
35#include "back.h"
36#include "tutor.h"
37
38const char   *const helpm[] = {
39	"\nEnter a space or newline to roll, or",
40	"     b   to display the board",
41	"     d   to double",
42	"     q   to quit\n",
43	0
44};
45
46const char   *const contin[] = {
47	"",
48	0
49};
50
51int
52main(int argc, char *argv[])
53{
54	int     i;
55
56	if (pledge("stdio rpath tty exec", NULL) == -1)
57		err(1, "pledge");
58
59	signal(SIGINT, getout);
60	initcurses();
61	text(hello);
62	text(list);
63	i = text(contin);
64	if (i == 0)
65		i = 2;
66	init();
67	while (i)
68		switch (i) {
69		case 1:
70			leave();	/* Does not return */
71			break;
72
73		case 2:
74			if ((i = text(intro1)))
75				break;
76			wrboard();
77			if ((i = text(intro2)))
78				break;
79
80		case 3:
81			if ((i = text(moves)))
82				break;
83
84		case 4:
85			if ((i = text(removepiece)))
86				break;
87
88		case 5:
89			if ((i = text(hits)))
90				break;
91
92		case 6:
93			if ((i = text(endgame)))
94				break;
95
96		case 7:
97			if ((i = text(doubl)))
98				break;
99
100		case 8:
101			if ((i = text(stragy)))
102				break;
103
104		case 9:
105			if ((i = text(prog)))
106				break;
107
108		case 10:
109			if ((i = text(lastch)))
110				break;
111		}
112	tutor();
113	/* NOT REACHED */
114}
115
116void
117leave(void)
118{
119	clear();
120	endwin();
121	execl(EXEC, "backgammon", "-n", (char *)NULL);
122	errx(1, "help! Backgammon program is missing!!");
123}
124