flame_graph - Add initial code to support flame graphs
[dragonfly.git] / games / hangman / getguess.c
1 /*      $OpenBSD: getguess.c,v 1.13 2015/02/07 03:30:08 tedu Exp $      */
2 /*      $NetBSD: getguess.c,v 1.5 1995/03/23 08:32:43 cgd Exp $ */
3
4 /*
5  * Copyright (c) 1983, 1993
6  *      The Regents of the University of California.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32
33 #include <sys/ttydefaults.h>
34 #include "hangman.h"
35
36 /*
37  * getguess:
38  *      Get another guess
39  */
40 void
41 getguess(void)
42 {
43         int i;
44         unsigned char ch, uch;
45         bool correct;
46
47         leaveok(stdscr, FALSE);
48         for (;;) {
49                 move(PROMPTY, PROMPTX + sizeof("Guess: "));
50                 refresh();
51                 ch = readch();
52                 if (isalpha(ch)) {
53                         if (isupper(ch))
54                                 ch = tolower(ch);
55                         if (Guessed[ch - 'a']) {
56                                 move(MESGY, MESGX);
57                                 clrtoeol();
58                                 mvprintw(MESGY, MESGX, "Already guessed '%c'",
59                                     ch);
60                         } else
61                                 break;
62                 } else if (isdigit(ch)) {
63                         if (Guessed[ch - '0' + 26]) {
64                                 move(MESGY, MESGX);
65                                 clrtoeol();
66                                 mvprintw(MESGY, MESGX, "Already guessed '%c'",
67                                     ch);
68                         } else
69                                 break;
70                 } else
71                         if (ch == CTRL('D'))
72                                 die(0);
73                         else {
74                                 move(MESGY, MESGX);
75                                 clrtoeol();
76                                 mvprintw(MESGY, MESGX,
77                                     "Not a valid guess: '%s'", unctrl(ch));
78                         }
79         }
80         leaveok(stdscr, TRUE);
81         move(MESGY, MESGX);
82         clrtoeol();
83
84         if (isalpha(ch))
85                 Guessed[ch - 'a'] = TRUE;
86         else
87                 Guessed[ch - '0' + 26] = TRUE;
88         correct = FALSE;
89         uch = toupper(ch);
90         for (i = 0; Word[i] != '\0'; i++) {
91                 if (Word[i] == ch) {
92                         Known[i] = ch;
93                         correct = TRUE;
94                 } else if (Word[i] == uch) {
95                         Known[i] = uch;
96                         correct = TRUE;
97                 }
98         }
99         if (!correct)
100                 Errors++;
101 }
102
103 /*
104  * readch;
105  *      Read a character from the input
106  */
107 unsigned char
108 readch(void)
109 {
110         int cnt;
111         char ch;
112
113         cnt = 0;
114         for (;;) {
115                 if (read(STDIN_FILENO, &ch, sizeof(ch)) <= 0) {
116                         if (++cnt > 100)
117                                 die(0);
118                 } else
119                         if (ch == CTRL('L')) {
120                                 wrefresh(curscr);
121                                 mvcur(0, 0, curscr->_cury, curscr->_curx);
122                         } else
123                                 return ch;
124         }
125 }