4.3BSD - /usr/src/games/hangman/getguess.c

   1: # include   "hangman.h"
   2: 
   3: /*
   4:  * getguess:
   5:  *	Get another guess
   6:  */
   7: getguess()
   8: {
   9:     register int    i;
  10:     register int    ch;
  11:     register bool   correct;
  12: 
  13:     leaveok(stdscr, FALSE);
  14:     for (;;) {
  15:         move(PROMPTY, PROMPTX + sizeof "Guess: ");
  16:         refresh();
  17:         ch = readch();
  18:         if (isalpha(ch)) {
  19:             if (isupper(ch))
  20:                 ch = tolower(ch);
  21:             if (Guessed[ch - 'a'])
  22:                 mvprintw(MESGY, MESGX, "Already guessed '%c'", ch);
  23:             else
  24:                 break;
  25:         }
  26:         else if (ch == CTRL(D))
  27:             die();
  28:         else
  29:             mvprintw(MESGY, MESGX, "Not a valid guess: '%s'",
  30:                 unctrl(ch));
  31:     }
  32:     leaveok(stdscr, TRUE);
  33:     move(MESGY, MESGX);
  34:     clrtoeol();
  35: 
  36:     Guessed[ch - 'a'] = TRUE;
  37:     correct = FALSE;
  38:     for (i = 0; Word[i] != '\0'; i++)
  39:         if (Word[i] == ch) {
  40:             Known[i] = ch;
  41:             correct = TRUE;
  42:         }
  43:     if (!correct)
  44:         Errors++;
  45: }
  46: 
  47: /*
  48:  * readch;
  49:  *	Read a character from the input
  50:  */
  51: readch()
  52: {
  53:     register int    cnt, r;
  54:     auto char   ch;
  55: 
  56:     cnt = 0;
  57:     for (;;) {
  58:         if (read(0, &ch, sizeof ch) <= 0)
  59:         {
  60:             if (++cnt > 100)
  61:                 die();
  62:         }
  63:         else if (ch == CTRL(L)) {
  64:             wrefresh(curscr);
  65:             mvcur(0, 0, curscr->_cury, curscr->_curx);
  66:         }
  67:         else
  68:             return ch;
  69:     }
  70: }

Defined functions