Home | History | Annotate | Line # | Download | only in hangman
getguess.c revision 1.7 
      1 /*	$NetBSD: getguess.c,v 1.7 1997/10/11 01:16:29 lukem 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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)getguess.c	8.1 (Berkeley) 5/31/93";
     40 #else
     41 __RCSID("$NetBSD: getguess.c,v 1.7 1997/10/11 01:16:29 lukem Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <sys/ttydefaults.h>
     46 #include "hangman.h"
     47 
     48 /*
     49  * getguess:
     50  *	Get another guess
     51  */
     52 void
     53 getguess()
     54 {
     55 	int i;
     56 	int ch;
     57 	bool correct;
     58 
     59 	leaveok(stdscr, FALSE);
     60 	for (;;) {
     61 		move(PROMPTY, PROMPTX + sizeof "Guess: ");
     62 		refresh();
     63 		ch = readch();
     64 		if (isalpha(ch)) {
     65 			if (isupper(ch))
     66 				ch = tolower(ch);
     67 			if (Guessed[ch - 'a'])
     68 				mvprintw(MESGY, MESGX, "Already guessed '%c'",
     69 				    ch);
     70 			else
     71 				break;
     72 		} else
     73 			if (ch == CTRL('D'))
     74 				die(0);
     75 			else
     76 				mvprintw(MESGY, MESGX,
     77 				    "Not a valid guess: '%s'", unctrl(ch));
     78 	}
     79 	leaveok(stdscr, TRUE);
     80 	move(MESGY, MESGX);
     81 	clrtoeol();
     82 
     83 	Guessed[ch - 'a'] = TRUE;
     84 	correct = FALSE;
     85 	for (i = 0; Word[i] != '\0'; i++)
     86 		if (Word[i] == ch) {
     87 			Known[i] = ch;
     88 			correct = TRUE;
     89 		}
     90 	if (!correct)
     91 		Errors++;
     92 }
     93 /*
     94  * readch;
     95  *	Read a character from the input
     96  */
     97 int
     98 readch()
     99 {
    100 	int cnt;
    101 	char ch;
    102 
    103 	cnt = 0;
    104 	for (;;) {
    105 		if (read(0, &ch, sizeof ch) <= 0) {
    106 			if (++cnt > 100)
    107 				die(0);
    108 		} else
    109 			if (ch == CTRL('L')) {
    110 				wrefresh(curscr);
    111 			} else
    112 				return ch;
    113 	}
    114 }
    115