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 
38 const 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 
46 const char   *const contin[] = {
47 	"",
48 	0
49 };
50 
51 int
52 main(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 
116 void
117 leave(void)
118 {
119 	clear();
120 	endwin();
121 	execl(EXEC, "backgammon", "-n", (char *)NULL);
122 	errx(1, "help! Backgammon program is missing!!");
123 }
124