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 * @(#)getguess.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/hangman/getguess.c,v 1.6 1999/12/10 03:22:59 billf Exp $ 35 * $DragonFly: src/games/hangman/getguess.c,v 1.3 2005/02/13 18:57:30 cpressey Exp $ 36 */ 37 38 #include <sys/ttydefaults.h> 39 #include "hangman.h" 40 41 /* 42 * getguess: 43 * Get another guess 44 */ 45 void 46 getguess(void) 47 { 48 int i; 49 int ch; 50 bool correct; 51 52 leaveok(stdscr, FALSE); 53 for (;;) { 54 move(PROMPTY, PROMPTX + sizeof("Guess: ")); 55 refresh(); 56 ch = readch(); 57 if (isalpha(ch)) { 58 if (isupper(ch)) 59 ch = tolower(ch); 60 if (Guessed[ch - 'a']) 61 mvprintw(MESGY, MESGX, "Already guessed '%c'", ch); 62 else 63 break; 64 } 65 else if (ch == CTRL('D')) 66 die(0); 67 else 68 mvprintw(MESGY, MESGX, "Not a valid guess: '%s'", 69 unctrl(ch)); 70 } 71 leaveok(stdscr, TRUE); 72 move(MESGY, MESGX); 73 clrtoeol(); 74 75 Guessed[ch - 'a'] = TRUE; 76 correct = FALSE; 77 for (i = 0; Word[i] != '\0'; i++) { 78 if (Word[i] == ch) { 79 Known[i] = ch; 80 correct = TRUE; 81 } 82 } 83 if (!correct) 84 Errors++; 85 } 86 87 /* 88 * readch; 89 * Read a character from the input 90 */ 91 char 92 readch(void) 93 { 94 int cnt; 95 char ch; 96 int x, y; 97 98 cnt = 0; 99 for (;;) { 100 if (read(0, &ch, sizeof(ch)) <= 0) { 101 if (++cnt > 100) 102 die(0); 103 } else if (ch == CTRL('L')) { 104 wrefresh(curscr); 105 getyx(curscr, y, x); 106 mvcur(0, 0, y, x); 107 } else 108 return ch; 109 } 110 } 111