1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. 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 #if 0 36 static char sccsid[] = "@(#)getguess.c 8.1 (Berkeley) 5/31/93"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD: src/games/hangman/getguess.c,v 1.6 1999/12/10 03:22:59 billf Exp $"; 40 #endif /* not lint */ 41 42 #include <sys/ttydefaults.h> 43 #include "hangman.h" 44 45 /* 46 * getguess: 47 * Get another guess 48 */ 49 void 50 getguess() 51 { 52 int i; 53 int ch; 54 bool correct; 55 56 leaveok(stdscr, FALSE); 57 for (;;) { 58 move(PROMPTY, PROMPTX + sizeof "Guess: "); 59 refresh(); 60 ch = readch(); 61 if (isalpha(ch)) { 62 if (isupper(ch)) 63 ch = tolower(ch); 64 if (Guessed[ch - 'a']) 65 mvprintw(MESGY, MESGX, "Already guessed '%c'", ch); 66 else 67 break; 68 } 69 else if (ch == CTRL('D')) 70 die(0); 71 else 72 mvprintw(MESGY, MESGX, "Not a valid guess: '%s'", 73 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 /* 91 * readch; 92 * Read a character from the input 93 */ 94 char 95 readch() 96 { 97 int cnt; 98 auto char ch; 99 100 cnt = 0; 101 for (;;) { 102 if (read(0, &ch, sizeof ch) <= 0) 103 { 104 if (++cnt > 100) 105 die(0); 106 } 107 else if (ch == CTRL('L')) { 108 wrefresh(curscr); 109 mvcur(0, 0, curscr->_cury, curscr->_curx); 110 } 111 else 112 return ch; 113 } 114 } 115