1 /* $OpenBSD: getguess.c,v 1.13 2015/02/07 03:30:08 tedu Exp $ */ 2 /* $NetBSD: getguess.c,v 1.5 1995/03/23 08:32:43 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/ttydefaults.h> 34 #include "hangman.h" 35 36 /* 37 * getguess: 38 * Get another guess 39 */ 40 void 41 getguess(void) 42 { 43 int i; 44 unsigned char ch, uch; 45 bool correct; 46 47 leaveok(stdscr, FALSE); 48 for (;;) { 49 move(PROMPTY, PROMPTX + sizeof("Guess: ")); 50 refresh(); 51 ch = readch(); 52 if (isalpha(ch)) { 53 if (isupper(ch)) 54 ch = tolower(ch); 55 if (Guessed[ch - 'a']) { 56 move(MESGY, MESGX); 57 clrtoeol(); 58 mvprintw(MESGY, MESGX, "Already guessed '%c'", 59 ch); 60 } else 61 break; 62 } else if (isdigit(ch)) { 63 if (Guessed[ch - '0' + 26]) { 64 move(MESGY, MESGX); 65 clrtoeol(); 66 mvprintw(MESGY, MESGX, "Already guessed '%c'", 67 ch); 68 } else 69 break; 70 } else 71 if (ch == CTRL('D')) 72 die(0); 73 else { 74 move(MESGY, MESGX); 75 clrtoeol(); 76 mvprintw(MESGY, MESGX, 77 "Not a valid guess: '%s'", unctrl(ch)); 78 } 79 } 80 leaveok(stdscr, TRUE); 81 move(MESGY, MESGX); 82 clrtoeol(); 83 84 if (isalpha(ch)) 85 Guessed[ch - 'a'] = TRUE; 86 else 87 Guessed[ch - '0' + 26] = TRUE; 88 correct = FALSE; 89 uch = toupper(ch); 90 for (i = 0; Word[i] != '\0'; i++) { 91 if (Word[i] == ch) { 92 Known[i] = ch; 93 correct = TRUE; 94 } else if (Word[i] == uch) { 95 Known[i] = uch; 96 correct = TRUE; 97 } 98 } 99 if (!correct) 100 Errors++; 101 } 102 103 /* 104 * readch; 105 * Read a character from the input 106 */ 107 unsigned char 108 readch(void) 109 { 110 int cnt; 111 char ch; 112 113 cnt = 0; 114 for (;;) { 115 if (read(STDIN_FILENO, &ch, sizeof(ch)) <= 0) { 116 if (++cnt > 100) 117 die(0); 118 } else 119 if (ch == CTRL('L')) { 120 wrefresh(curscr); 121 mvcur(0, 0, curscr->_cury, curscr->_curx); 122 } else 123 return ch; 124 } 125 } 126