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io.c revision 1.6 
      1 /*
      2  * Copyright (c) 1980 Regents of the University of California.
      3  * 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 /*static char sccsid[] = "from: @(#)io.c	5.8 (Berkeley) 2/28/91";*/
     36 static char rcsid[] = "$Id: io.c,v 1.6 1993/12/08 07:50:47 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 # include	<curses.h>
     40 # include	<termios.h>
     41 # include	<ctype.h>
     42 # include	<signal.h>
     43 # include	<stdarg.h>
     44 # include	"deck.h"
     45 # include	"cribbage.h"
     46 # include	"cribcur.h"
     47 
     48 # define	LINESIZE		128
     49 
     50 # ifdef CTRL
     51 # undef CTRL
     52 # endif
     53 # define	CTRL(X)			('X' - 'A' + 1)
     54 
     55 # ifdef	notdef				/* defined in curses.h */
     56 #	define	erasechar()	_tty.sg_erase
     57 #	define	killchar()	_tty.sg_kill
     58 # endif
     59 
     60 char		linebuf[ LINESIZE ];
     61 
     62 char		*rankname[ RANKS ]	= { "ACE", "TWO", "THREE", "FOUR",
     63 					    "FIVE", "SIX", "SEVEN", "EIGHT",
     64 					    "NINE", "TEN", "JACK", "QUEEN",
     65 					    "KING" };
     66 
     67 char            *rankchar[ RANKS ]      = { "A", "2", "3", "4", "5", "6", "7",
     68 					    "8", "9", "T", "J", "Q", "K" };
     69 
     70 char            *suitname[ SUITS ]      = { "SPADES", "HEARTS", "DIAMONDS",
     71 					    "CLUBS" };
     72 
     73 char            *suitchar[ SUITS ]      = { "S", "H", "D", "C" };
     74 
     75 
     76 
     77 /*
     78  * msg:
     79  *	Display a message at the top of the screen.
     80  */
     81 char		Msgbuf[BUFSIZ] = { '\0' };
     82 
     83 int		Mpos = 0;
     84 
     85 static int	Newpos = 0;
     86 
     87 msg(char *fmt, ...)
     88 {
     89 	va_list ap;
     90 
     91 	va_start(ap, fmt);
     92 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
     93 	endmsg();
     94 }
     95 
     96 /*
     97  * addmsg:
     98  *	Add things to the current message
     99  */
    100 addmsg(char *fmt, ...)
    101 {
    102 	va_list ap;
    103 
    104 	va_start(ap, fmt);
    105 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    106 }
    107 
    108 /*
    109  * endmsg:
    110  *	Display a new msg.
    111  */
    112 
    113 int	Lineno = 0;
    114 
    115 endmsg()
    116 {
    117     register int	len;
    118     register char	*mp, *omp;
    119     static int		lastline = 0;
    120 
    121     /*
    122      * All messages should start with uppercase
    123      */
    124     mvaddch(lastline + Y_MSG_START, SCORE_X, ' ');
    125     if (islower(Msgbuf[0]) && Msgbuf[1] != ')')
    126 	Msgbuf[0] = toupper(Msgbuf[0]);
    127     mp = Msgbuf;
    128     len = strlen(mp);
    129     if (len / MSG_X + Lineno >= MSG_Y) {
    130 	while (Lineno < MSG_Y) {
    131 	    wmove(Msgwin, Lineno++, 0);
    132 	    wclrtoeol(Msgwin);
    133 	}
    134 	Lineno = 0;
    135     }
    136     mvaddch(Lineno + Y_MSG_START, SCORE_X, '*');
    137     lastline = Lineno;
    138     do {
    139 	mvwaddstr(Msgwin, Lineno, 0, mp);
    140 	if ((len = strlen(mp)) > MSG_X) {
    141 	    omp = mp;
    142 	    for (mp = &mp[MSG_X-1]; *mp != ' '; mp--)
    143 	    	continue;
    144 	    while (*mp == ' ')
    145 		mp--;
    146 	    mp++;
    147 	    wmove(Msgwin, Lineno, mp - omp);
    148 	    wclrtoeol(Msgwin);
    149 	}
    150 	if (++Lineno >= MSG_Y)
    151 	    Lineno = 0;
    152     } while (len > MSG_X);
    153     wclrtoeol(Msgwin);
    154     Mpos = len;
    155     Newpos = 0;
    156     wrefresh(Msgwin);
    157     refresh();
    158     wrefresh(Msgwin);
    159 }
    160 
    161 /*
    162  * msgcard:
    163  *	Call msgcrd in one of two forms
    164  */
    165 msgcard(c, brief)
    166 CARD		c;
    167 BOOLEAN		brief;
    168 {
    169 	if (brief)
    170 		return msgcrd(c, TRUE, (char *) NULL, TRUE);
    171 	else
    172 		return msgcrd(c, FALSE, " of ", FALSE);
    173 }
    174 
    175 
    176 
    177 /*
    178  * msgcrd:
    179  *	Print the value of a card in ascii
    180  */
    181 msgcrd(c, brfrank, mid, brfsuit)
    182 CARD		c;
    183 char		*mid;
    184 BOOLEAN		brfrank,  brfsuit;
    185 {
    186 	if (c.rank == EMPTY || c.suit == EMPTY)
    187 	    return FALSE;
    188 	if (brfrank)
    189 	    addmsg("%1.1s", rankchar[c.rank]);
    190 	else
    191 	    addmsg(rankname[c.rank]);
    192 	if (mid != NULL)
    193 	    addmsg(mid);
    194 	if (brfsuit)
    195 	    addmsg("%1.1s", suitchar[c.suit]);
    196 	else
    197 	    addmsg(suitname[c.suit]);
    198 	return TRUE;
    199 }
    200 
    201 /*
    202  * printcard:
    203  *	Print out a card.
    204  */
    205 printcard(win, cardno, c, blank)
    206 WINDOW		*win;
    207 int		cardno;
    208 CARD		c;
    209 BOOLEAN		blank;
    210 {
    211 	prcard(win, cardno * 2, cardno, c, blank);
    212 }
    213 
    214 /*
    215  * prcard:
    216  *	Print out a card on the window at the specified location
    217  */
    218 prcard(win, y, x, c, blank)
    219 WINDOW		*win;
    220 int		y, x;
    221 CARD		c;
    222 BOOLEAN		blank;
    223 {
    224 	if (c.rank == EMPTY)
    225 	    return;
    226 	mvwaddstr(win, y + 0, x, "+-----+");
    227 	mvwaddstr(win, y + 1, x, "|     |");
    228 	mvwaddstr(win, y + 2, x, "|     |");
    229 	mvwaddstr(win, y + 3, x, "|     |");
    230 	mvwaddstr(win, y + 4, x, "+-----+");
    231 	if (!blank) {
    232 		mvwaddch(win, y + 1, x + 1, rankchar[c.rank][0]);
    233 		waddch(win, suitchar[c.suit][0]);
    234 		mvwaddch(win, y + 3, x + 4, rankchar[c.rank][0]);
    235 		waddch(win, suitchar[c.suit][0]);
    236 	}
    237 }
    238 
    239 /*
    240  * prhand:
    241  *	Print a hand of n cards
    242  */
    243 prhand(h, n, win, blank)
    244 CARD		h[];
    245 int		n;
    246 WINDOW		*win;
    247 BOOLEAN		blank;
    248 {
    249 	register int	i;
    250 
    251 	werase(win);
    252 	for (i = 0; i < n; i++)
    253 	    printcard(win, i, *h++, blank);
    254 	wrefresh(win);
    255 }
    256 
    257 
    258 
    259 /*
    260  * infrom:
    261  *	reads a card, supposedly in hand, accepting unambigous brief
    262  *	input, returns the index of the card found...
    263  */
    264 infrom(hand, n, prompt)
    265 CARD		hand[];
    266 int		n;
    267 char		*prompt;
    268 {
    269 	register int           i, j;
    270 	CARD                    crd;
    271 
    272 	if (n < 1) {
    273 	    printf("\nINFROM: %d = n < 1!!\n", n);
    274 	    exit(74);
    275 	}
    276 	for (;;) {
    277 	    msg(prompt);
    278 	    if (incard(&crd)) {			/* if card is full card */
    279 		if (!isone(crd, hand, n))
    280 		    msg("That's not in your hand");
    281 		else {
    282 		    for (i = 0; i < n; i++)
    283 			if (hand[i].rank == crd.rank &&
    284 			    hand[i].suit == crd.suit)
    285 				break;
    286 		    if (i >= n) {
    287 			printf("\nINFROM: isone or something messed up\n");
    288 			exit(77);
    289 		    }
    290 		    return i;
    291 		}
    292 	    }
    293 	    else				/* if not full card... */
    294 		if (crd.rank != EMPTY) {
    295 		    for (i = 0; i < n; i++)
    296 			if (hand[i].rank == crd.rank)
    297 				break;
    298 		    if (i >= n)
    299 			msg("No such rank in your hand");
    300 		    else {
    301 			for (j = i + 1; j < n; j++)
    302 			    if (hand[j].rank == crd.rank)
    303 				break;
    304 			if (j < n)
    305 			    msg("Ambiguous rank");
    306 			else
    307 			    return i;
    308 		    }
    309 		}
    310 		else
    311 		    msg("Sorry, I missed that");
    312 	}
    313 	/* NOTREACHED */
    314 }
    315 
    316 
    317 
    318 /*
    319  * incard:
    320  *	Inputs a card in any format.  It reads a line ending with a CR
    321  *	and then parses it.
    322  */
    323 incard(crd)
    324 CARD		*crd;
    325 {
    326 	char		*getline();
    327 	register int	i;
    328 	int		rnk, sut;
    329 	char		*line, *p, *p1;
    330 	BOOLEAN		retval;
    331 
    332 	retval = FALSE;
    333 	rnk = sut = EMPTY;
    334 	if (!(line = getline()))
    335 		goto gotit;
    336 	p = p1 = line;
    337 	while(  *p1 != ' '  &&  *p1 != NULL  )  ++p1;
    338 	*p1++ = NULL;
    339 	if(  *p == NULL  )  goto  gotit;
    340 			/* IMPORTANT: no real card has 2 char first name */
    341 	if(  strlen(p) == 2  )  {               /* check for short form */
    342 	    rnk = EMPTY;
    343 	    for( i = 0; i < RANKS; i++ )  {
    344 		if(  *p == *rankchar[i]  )  {
    345 		    rnk = i;
    346 		    break;
    347 		}
    348 	    }
    349 	    if(  rnk == EMPTY  )  goto  gotit;     /* it's nothing... */
    350 	    ++p;                                /* advance to next char */
    351 	    sut = EMPTY;
    352 	    for( i = 0; i < SUITS; i++ )  {
    353 		if(  *p == *suitchar[i]  )  {
    354 		    sut = i;
    355 		    break;
    356 		}
    357 	    }
    358 	    if(  sut != EMPTY  )  retval = TRUE;
    359 	    goto  gotit;
    360 	}
    361 	rnk = EMPTY;
    362 	for( i = 0; i < RANKS; i++ )  {
    363 	    if(  !strcmp( p, rankname[i] )  ||  !strcmp( p, rankchar[i] )  )  {
    364 		rnk = i;
    365 		break;
    366 	    }
    367 	}
    368 	if(  rnk == EMPTY  )  goto  gotit;
    369 	p = p1;
    370 	while(  *p1 != ' '  &&  *p1 != NULL  )  ++p1;
    371 	*p1++ = NULL;
    372 	if(  *p == NULL  )  goto  gotit;
    373 	if(  !strcmp( "OF", p )  )  {
    374 	    p = p1;
    375 	    while(  *p1 != ' '  &&  *p1 != NULL  )  ++p1;
    376 	    *p1++ = NULL;
    377 	    if(  *p == NULL  )  goto  gotit;
    378 	}
    379 	sut = EMPTY;
    380 	for( i = 0; i < SUITS; i++ )  {
    381 	    if(  !strcmp( p, suitname[i] )  ||  !strcmp( p, suitchar[i] )  )  {
    382 		sut = i;
    383 		break;
    384 	    }
    385 	}
    386 	if(  sut != EMPTY  )  retval = TRUE;
    387 gotit:
    388 	(*crd).rank = rnk;
    389 	(*crd).suit = sut;
    390 	return( retval );
    391 }
    392 
    393 
    394 
    395 /*
    396  * getuchar:
    397  *	Reads and converts to upper case
    398  */
    399 getuchar()
    400 {
    401 	register int		c;
    402 
    403 	c = readchar();
    404 	if (islower(c))
    405 	    c = toupper(c);
    406 	waddch(Msgwin, c);
    407 	return c;
    408 }
    409 
    410 /*
    411  * number:
    412  *	Reads in a decimal number and makes sure it is between "lo" and
    413  *	"hi" inclusive.
    414  */
    415 number(lo, hi, prompt)
    416 int		lo, hi;
    417 char		*prompt;
    418 {
    419 	char			*getline();
    420 	register char		*p;
    421 	register int		sum;
    422 
    423 	sum = 0;
    424 	for (;;) {
    425 	    msg(prompt);
    426 	    if(!(p = getline()) || *p == NULL) {
    427 		msg(quiet ? "Not a number" : "That doesn't look like a number");
    428 		continue;
    429 	    }
    430 	    sum = 0;
    431 
    432 	    if (!isdigit(*p))
    433 		sum = lo - 1;
    434 	    else
    435 		while (isdigit(*p)) {
    436 		    sum = 10 * sum + (*p - '0');
    437 		    ++p;
    438 		}
    439 
    440 	    if (*p != ' ' && *p != '\t' && *p != NULL)
    441 		sum = lo - 1;
    442 	    if (sum >= lo && sum <= hi)
    443 		return sum;
    444 	    if (sum == lo - 1)
    445 		msg("that doesn't look like a number, try again --> ");
    446 	    else
    447 		msg("%d is not between %d and %d inclusive, try again --> ",
    448 								sum, lo, hi);
    449 	}
    450 }
    451 
    452 #ifdef notdef
    453 /*
    454  * doadd:
    455  *	Perform an add onto the message buffer
    456  */
    457 doadd(fmt, args)
    458 char	*fmt;
    459 int	*args;
    460 {
    461     static FILE	junk;
    462 
    463     /*
    464      * Do the printf into Msgbuf
    465      */
    466     junk._flag = _IOWRT + _IOSTRG;
    467     junk._ptr = &Msgbuf[Newpos];
    468     junk._cnt = 32767;
    469     _doprnt(fmt, args, &junk);
    470     putc('\0', &junk);
    471     Newpos = strlen(Msgbuf);
    472 }
    473 #endif
    474 
    475 /*
    476  * do_wait:
    477  *	Wait for the user to type ' ' before doing anything else
    478  */
    479 do_wait()
    480 {
    481     register int line;
    482     static char prompt[] = { '-', '-', 'M', 'o', 'r', 'e', '-', '-', '\0' };
    483 
    484     if (Mpos + sizeof prompt < MSG_X)
    485 	wmove(Msgwin, Lineno > 0 ? Lineno - 1 : MSG_Y - 1, Mpos);
    486     else {
    487 	mvwaddch(Msgwin, Lineno, 0, ' ');
    488 	wclrtoeol(Msgwin);
    489 	if (++Lineno >= MSG_Y)
    490 	    Lineno = 0;
    491     }
    492     waddstr(Msgwin, prompt);
    493     wrefresh(Msgwin);
    494     wait_for(' ');
    495 }
    496 
    497 /*
    498  * wait_for
    499  *	Sit around until the guy types the right key
    500  */
    501 wait_for(ch)
    502 register char	ch;
    503 {
    504     register char	c;
    505 
    506     if (ch == '\n')
    507 	while ((c = readchar()) != '\n')
    508 	    continue;
    509     else
    510 	while (readchar() != ch)
    511 	    continue;
    512 }
    513 
    514 /*
    515  * readchar:
    516  *	Reads and returns a character, checking for gross input errors
    517  */
    518 readchar()
    519 {
    520     register int	cnt, y, x;
    521     auto char		c;
    522 
    523 over:
    524     cnt = 0;
    525     while (read(0, &c, 1) <= 0)
    526 	if (cnt++ > 100) {	/* if we are getting infinite EOFs */
    527 		bye();		/* quit the game */
    528 		exit(1);
    529 	}
    530     if (c == CTRL(L)) {
    531 	wrefresh(curscr);
    532 	goto over;
    533     }
    534     if (c == '\r')
    535 	return '\n';
    536     else
    537 	return c;
    538 }
    539 
    540 /*
    541  * getline:
    542  *      Reads the next line up to '\n' or EOF.  Multiple spaces are
    543  *	compressed to one space; a space is inserted before a ','
    544  */
    545 char *
    546 getline()
    547 {
    548     register char	*sp;
    549     register int	c, oy, ox;
    550     register WINDOW	*oscr;
    551 
    552     oscr = stdscr;
    553     stdscr = Msgwin;
    554     getyx(stdscr, oy, ox);
    555     refresh();
    556     /*
    557      * loop reading in the string, and put it in a temporary buffer
    558      */
    559     for (sp = linebuf; (c = readchar()) != '\n'; clrtoeol(), refresh()) {
    560 	if (c == -1)
    561 	    continue;
    562 	else if (c == erasechar()) {	/* process erase character */
    563 	    if (sp > linebuf) {
    564 		register int i;
    565 
    566 		sp--;
    567 		for (i = strlen(unctrl(*sp)); i; i--)
    568 		    addch('\b');
    569 	    }
    570 	    continue;
    571 	}
    572 	else if (c == killchar()) {	/* process kill character */
    573 	    sp = linebuf;
    574 	    move(oy, ox);
    575 	    continue;
    576 	}
    577 	else if (sp == linebuf && c == ' ')
    578 	    continue;
    579 	if (sp >= &linebuf[LINESIZE-1] || !(isprint(c) || c == ' '))
    580 	    putchar(CTRL(G));
    581 	else {
    582 	    if (islower(c))
    583 		c = toupper(c);
    584 	    *sp++ = c;
    585 	    addstr(unctrl(c));
    586 	    Mpos++;
    587 	}
    588     }
    589     *sp = '\0';
    590     stdscr = oscr;
    591     return linebuf;
    592 }
    593 
    594 rint()
    595 {
    596 	bye();
    597 	exit(1);
    598 }
    599 
    600 /*
    601  * bye:
    602  *	Leave the program, cleaning things up as we go.
    603  */
    604 bye()
    605 {
    606 	signal(SIGINT, SIG_IGN);
    607 	mvcur(0, COLS - 1, LINES - 1, 0);
    608 	fflush(stdout);
    609 	endwin();
    610 	putchar('\n');
    611 }
    612