xref: /openbsd-src/games/backgammon/teachgammon/teach.c (revision 91f110e064cd7c194e59e019b83bb7496c1c84d4)
1 /*	$OpenBSD: teach.c,v 1.14 2009/10/27 23:59:23 deraadt 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 "back.h"
34 #include "tutor.h"
35 
36 const char   *const helpm[] = {
37 	"\nEnter a space or newline to roll, or",
38 	"     b   to display the board",
39 	"     d   to double",
40 	"     q   to quit\n",
41 	0
42 };
43 
44 const char   *const contin[] = {
45 	"",
46 	0
47 };
48 
49 int
50 main(argc, argv)
51 	int     argc;
52 	char   *argv[];
53 {
54 	int     i;
55 
56 	signal(SIGINT, getout);
57 	initcurses();
58 	text(hello);
59 	text(list);
60 	i = text(contin);
61 	if (i == 0)
62 		i = 2;
63 	init();
64 	while (i)
65 		switch (i) {
66 		case 1:
67 			leave();	/* Does not return */
68 			break;
69 
70 		case 2:
71 			if ((i = text(intro1)))
72 				break;
73 			wrboard();
74 			if ((i = text(intro2)))
75 				break;
76 
77 		case 3:
78 			if ((i = text(moves)))
79 				break;
80 
81 		case 4:
82 			if ((i = text(removepiece)))
83 				break;
84 
85 		case 5:
86 			if ((i = text(hits)))
87 				break;
88 
89 		case 6:
90 			if ((i = text(endgame)))
91 				break;
92 
93 		case 7:
94 			if ((i = text(doubl)))
95 				break;
96 
97 		case 8:
98 			if ((i = text(stragy)))
99 				break;
100 
101 		case 9:
102 			if ((i = text(prog)))
103 				break;
104 
105 		case 10:
106 			if ((i = text(lastch)))
107 				break;
108 		}
109 	tutor();
110 	/* NOT REACHED */
111 }
112 
113 void
114 leave()
115 {
116 	clear();
117 	endwin();
118 	execl(EXEC, "backgammon", "-n", args, (char *)NULL);
119 	errx(1, "help! Backgammon program is missing!!");
120 }
121