Home | History | Annotate | Line # | Download | only in hangman
getguess.c revision 1.1 
      1 /*
      2  * Copyright (c) 1983 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 static char sccsid[] = "@(#)getguess.c	5.4 (Berkeley) 6/1/90";
     36 #endif /* not lint */
     37 
     38 # include	"hangman.h"
     39 
     40 /*
     41  * getguess:
     42  *	Get another guess
     43  */
     44 getguess()
     45 {
     46 	register int	i;
     47 	register int	ch;
     48 	register bool	correct;
     49 
     50 	leaveok(stdscr, FALSE);
     51 	for (;;) {
     52 		move(PROMPTY, PROMPTX + sizeof "Guess: ");
     53 		refresh();
     54 		ch = readch();
     55 		if (isalpha(ch)) {
     56 			if (isupper(ch))
     57 				ch = tolower(ch);
     58 			if (Guessed[ch - 'a'])
     59 				mvprintw(MESGY, MESGX, "Already guessed '%c'", ch);
     60 			else
     61 				break;
     62 		}
     63 		else if (ch == CTRL('D'))
     64 			die();
     65 		else
     66 			mvprintw(MESGY, MESGX, "Not a valid guess: '%s'",
     67 				unctrl(ch));
     68 	}
     69 	leaveok(stdscr, TRUE);
     70 	move(MESGY, MESGX);
     71 	clrtoeol();
     72 
     73 	Guessed[ch - 'a'] = TRUE;
     74 	correct = FALSE;
     75 	for (i = 0; Word[i] != '\0'; i++)
     76 		if (Word[i] == ch) {
     77 			Known[i] = ch;
     78 			correct = TRUE;
     79 		}
     80 	if (!correct)
     81 		Errors++;
     82 }
     83 
     84 /*
     85  * readch;
     86  *	Read a character from the input
     87  */
     88 readch()
     89 {
     90 	register int	cnt, r;
     91 	auto char	ch;
     92 
     93 	cnt = 0;
     94 	for (;;) {
     95 		if (read(0, &ch, sizeof ch) <= 0)
     96 		{
     97 			if (++cnt > 100)
     98 				die();
     99 		}
    100 		else if (ch == CTRL('L')) {
    101 			wrefresh(curscr);
    102 			mvcur(0, 0, curscr->_cury, curscr->_curx);
    103 		}
    104 		else
    105 			return ch;
    106 	}
    107 }
    108