1 /* $NetBSD: getguess.c,v 1.10 2012/10/13 21:01:13 dholland Exp $ */
2
3 /*
4 * Copyright (c) 1983, 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 <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)getguess.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: getguess.c,v 1.10 2012/10/13 21:01:13 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <sys/ttydefaults.h>
42 #include "hangman.h"
43
44 /*
45 * getguess:
46 * Get another guess
47 */
48 void
getguess(void)49 getguess(void)
50 {
51 int i;
52 int ch;
53 bool correct;
54
55 leaveok(stdscr, FALSE);
56 for (;;) {
57 move(PROMPTY, PROMPTX + sizeof "Guess: ");
58 refresh();
59 ch = readch();
60 if (isalpha(ch)) {
61 if (isupper(ch))
62 ch = tolower(ch);
63 if (Guessed[ch - 'a'])
64 mvprintw(MESGY, MESGX, "Already guessed '%c'",
65 ch);
66 else
67 break;
68 } else
69 if (ch == CTRL('D'))
70 die(0);
71 else
72 mvprintw(MESGY, MESGX,
73 "Not a valid guess: '%s'", unctrl(ch));
74 }
75 leaveok(stdscr, TRUE);
76 move(MESGY, MESGX);
77 clrtoeol();
78
79 Guessed[ch - 'a'] = true;
80 correct = false;
81 for (i = 0; Word[i] != '\0'; i++)
82 if (Word[i] == ch) {
83 Known[i] = ch;
84 correct = true;
85 }
86 if (!correct)
87 Errors++;
88 }
89 /*
90 * readch;
91 * Read a character from the input
92 */
93 int
readch(void)94 readch(void)
95 {
96 int cnt;
97 char ch;
98
99 cnt = 0;
100 for (;;) {
101 if (read(0, &ch, sizeof ch) <= 0) {
102 if (++cnt > 100)
103 die(0);
104 } else
105 if (ch == CTRL('L')) {
106 wrefresh(curscr);
107 } else
108 return ch;
109 }
110 }
111