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Annotation of src/games/hangman/getguess.c, Revision 1.10

1.10    ! dholland    1: /*     $NetBSD: getguess.c,v 1.9 2012/06/19 05:45:00 dholland Exp $    */
1.5       cgd         2:
1.1       cgd         3: /*
1.5       cgd         4:  * Copyright (c) 1983, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
1.1       cgd         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.
1.8       agc        15:  * 3. Neither the name of the University nor the names of its contributors
1.1       cgd        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:
1.7       lukem      32: #include <sys/cdefs.h>
1.1       cgd        33: #ifndef lint
1.5       cgd        34: #if 0
                     35: static char sccsid[] = "@(#)getguess.c 8.1 (Berkeley) 5/31/93";
                     36: #else
1.10    ! dholland   37: __RCSID("$NetBSD: getguess.c,v 1.9 2012/06/19 05:45:00 dholland Exp $");
1.5       cgd        38: #endif
1.1       cgd        39: #endif /* not lint */
                     40:
1.5       cgd        41: #include <sys/ttydefaults.h>
                     42: #include "hangman.h"
1.1       cgd        43:
                     44: /*
                     45:  * getguess:
                     46:  *     Get another guess
                     47:  */
1.7       lukem      48: void
1.9       dholland   49: getguess(void)
1.1       cgd        50: {
1.7       lukem      51:        int i;
                     52:        int ch;
                     53:        bool correct;
1.1       cgd        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'])
1.7       lukem      64:                                mvprintw(MESGY, MESGX, "Already guessed '%c'",
                     65:                                    ch);
1.1       cgd        66:                        else
                     67:                                break;
1.7       lukem      68:                } else
                     69:                        if (ch == CTRL('D'))
                     70:                                die(0);
                     71:                        else
                     72:                                mvprintw(MESGY, MESGX,
                     73:                                    "Not a valid guess: '%s'", unctrl(ch));
1.1       cgd        74:        }
                     75:        leaveok(stdscr, TRUE);
                     76:        move(MESGY, MESGX);
                     77:        clrtoeol();
                     78:
1.10    ! dholland   79:        Guessed[ch - 'a'] = true;
        !            80:        correct = false;
1.1       cgd        81:        for (i = 0; Word[i] != '\0'; i++)
                     82:                if (Word[i] == ch) {
                     83:                        Known[i] = ch;
1.10    ! dholland   84:                        correct = true;
1.1       cgd        85:                }
                     86:        if (!correct)
                     87:                Errors++;
                     88: }
                     89: /*
                     90:  * readch;
                     91:  *     Read a character from the input
                     92:  */
1.7       lukem      93: int
1.9       dholland   94: readch(void)
1.1       cgd        95: {
1.7       lukem      96:        int cnt;
                     97:        char ch;
1.1       cgd        98:
                     99:        cnt = 0;
                    100:        for (;;) {
1.7       lukem     101:                if (read(0, &ch, sizeof ch) <= 0) {
1.1       cgd       102:                        if (++cnt > 100)
1.7       lukem     103:                                die(0);
                    104:                } else
                    105:                        if (ch == CTRL('L')) {
                    106:                                wrefresh(curscr);
                    107:                        } else
                    108:                                return ch;
1.1       cgd       109:        }
                    110: }