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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)getguess.c 8.1 (Berkeley) 5/31/93 30 * $FreeBSD: src/games/hangman/getguess.c,v 1.6 1999/12/10 03:22:59 billf Exp $ 31 * $DragonFly: src/games/hangman/getguess.c,v 1.3 2005/02/13 18:57:30 cpressey Exp $ 32 */ 33 34 #include <sys/ttydefaults.h> 35 #include "hangman.h" 36 37 /* 38 * getguess: 39 * Get another guess 40 */ 41 void 42 getguess(void) 43 { 44 int i; 45 int ch; 46 bool correct; 47 48 leaveok(stdscr, FALSE); 49 for (;;) { 50 move(PROMPTY, PROMPTX + sizeof("Guess: ")); 51 refresh(); 52 ch = readch(); 53 if (isalpha(ch)) { 54 if (isupper(ch)) 55 ch = tolower(ch); 56 if (Guessed[ch - 'a']) 57 mvprintw(MESGY, MESGX, "Already guessed '%c'", ch); 58 else 59 break; 60 } 61 else if (ch == CTRL('D')) 62 die(0); 63 else 64 mvprintw(MESGY, MESGX, "Not a valid guess: '%s'", 65 unctrl(ch)); 66 } 67 leaveok(stdscr, TRUE); 68 move(MESGY, MESGX); 69 clrtoeol(); 70 71 Guessed[ch - 'a'] = TRUE; 72 correct = FALSE; 73 for (i = 0; Word[i] != '\0'; i++) { 74 if (Word[i] == ch) { 75 Known[i] = ch; 76 correct = TRUE; 77 } 78 } 79 if (!correct) 80 Errors++; 81 } 82 83 /* 84 * readch; 85 * Read a character from the input 86 */ 87 char 88 readch(void) 89 { 90 int cnt; 91 char ch; 92 int x, y; 93 94 cnt = 0; 95 for (;;) { 96 if (read(STDIN_FILENO, &ch, sizeof(ch)) <= 0) { 97 if (++cnt > 100) 98 die(0); 99 } else if (ch == CTRL('L')) { 100 wrefresh(curscr); 101 getyx(curscr, y, x); 102 mvcur(0, 0, y, x); 103 } else 104 return ch; 105 } 106 } 107