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io.c revision 1.1.1.2 
      1 /*-
      2  * Copyright (c) 1980, 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 
     34 #ifndef lint
     35 static char sccsid[] = "@(#)io.c	8.1 (Berkeley) 5/31/93";
     36 #endif /* not lint */
     37 
     38 #include <ctype.h>
     39 #include <curses.h>
     40 #include <signal.h>
     41 #include <stdlib.h>
     42 #include <string.h>
     43 #include <termios.h>
     44 #include <unistd.h>
     45 
     46 #if __STDC__
     47 #include <stdarg.h>
     48 #else
     49 #include <varargs.h>
     50 #endif
     51 
     52 #include "deck.h"
     53 #include "cribbage.h"
     54 #include "cribcur.h"
     55 
     56 #define	LINESIZE		128
     57 
     58 #ifdef CTRL
     59 #undef CTRL
     60 #endif
     61 #define	CTRL(X)			(X - 'A' + 1)
     62 
     63 char    linebuf[LINESIZE];
     64 
     65 char   *rankname[RANKS] = {
     66 	"ACE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN",
     67 	"EIGHT", "NINE", "TEN", "JACK", "QUEEN", "KING"
     68 };
     69 
     70 char   *rankchar[RANKS] = {
     71 	"A", "2", "3", "4", "5", "6", "7", "8", "9", "T", "J", "Q", "K"
     72 };
     73 
     74 char   *suitname[SUITS] = {"SPADES", "HEARTS", "DIAMONDS", "CLUBS"};
     75 
     76 char   *suitchar[SUITS] = {"S", "H", "D", "C"};
     77 
     78 /*
     79  * msgcard:
     80  *	Call msgcrd in one of two forms
     81  */
     82 int
     83 msgcard(c, brief)
     84 	CARD c;
     85 	BOOLEAN brief;
     86 {
     87 	if (brief)
     88 		return (msgcrd(c, TRUE, NULL, TRUE));
     89 	else
     90 		return (msgcrd(c, FALSE, " of ", FALSE));
     91 }
     92 
     93 /*
     94  * msgcrd:
     95  *	Print the value of a card in ascii
     96  */
     97 int
     98 msgcrd(c, brfrank, mid, brfsuit)
     99 	CARD c;
    100 	BOOLEAN brfrank, brfsuit;
    101 	char *mid;
    102 {
    103 	if (c.rank == EMPTY || c.suit == EMPTY)
    104 		return (FALSE);
    105 	if (brfrank)
    106 		addmsg("%1.1s", rankchar[c.rank]);
    107 	else
    108 		addmsg(rankname[c.rank]);
    109 	if (mid != NULL)
    110 		addmsg(mid);
    111 	if (brfsuit)
    112 		addmsg("%1.1s", suitchar[c.suit]);
    113 	else
    114 		addmsg(suitname[c.suit]);
    115 	return (TRUE);
    116 }
    117 
    118 /*
    119  * printcard:
    120  *	Print out a card.
    121  */
    122 void
    123 printcard(win, cardno, c, blank)
    124 	WINDOW *win;
    125 	int     cardno;
    126 	CARD    c;
    127 	BOOLEAN blank;
    128 {
    129 	prcard(win, cardno * 2, cardno, c, blank);
    130 }
    131 
    132 /*
    133  * prcard:
    134  *	Print out a card on the window at the specified location
    135  */
    136 void
    137 prcard(win, y, x, c, blank)
    138 	WINDOW *win;
    139 	int y, x;
    140 	CARD c;
    141 	BOOLEAN blank;
    142 {
    143 	if (c.rank == EMPTY)
    144 		return;
    145 
    146 	mvwaddstr(win, y + 0, x, "+-----+");
    147 	mvwaddstr(win, y + 1, x, "|     |");
    148 	mvwaddstr(win, y + 2, x, "|     |");
    149 	mvwaddstr(win, y + 3, x, "|     |");
    150 	mvwaddstr(win, y + 4, x, "+-----+");
    151 	if (!blank) {
    152 		mvwaddch(win, y + 1, x + 1, rankchar[c.rank][0]);
    153 		waddch(win, suitchar[c.suit][0]);
    154 		mvwaddch(win, y + 3, x + 4, rankchar[c.rank][0]);
    155 		waddch(win, suitchar[c.suit][0]);
    156 	}
    157 }
    158 
    159 /*
    160  * prhand:
    161  *	Print a hand of n cards
    162  */
    163 void
    164 prhand(h, n, win, blank)
    165 	CARD h[];
    166 	int n;
    167 	WINDOW *win;
    168 	BOOLEAN blank;
    169 {
    170 	register int i;
    171 
    172 	werase(win);
    173 	for (i = 0; i < n; i++)
    174 		printcard(win, i, *h++, blank);
    175 	wrefresh(win);
    176 }
    177 
    178 /*
    179  * infrom:
    180  *	reads a card, supposedly in hand, accepting unambigous brief
    181  *	input, returns the index of the card found...
    182  */
    183 int
    184 infrom(hand, n, prompt)
    185 	CARD hand[];
    186 	int n;
    187 	char *prompt;
    188 {
    189 	register int i, j;
    190 	CARD crd;
    191 
    192 	if (n < 1) {
    193 		printf("\nINFROM: %d = n < 1!!\n", n);
    194 		exit(74);
    195 	}
    196 	for (;;) {
    197 		msg(prompt);
    198 		if (incard(&crd)) {	/* if card is full card */
    199 			if (!isone(crd, hand, n))
    200 				msg("That's not in your hand");
    201 			else {
    202 				for (i = 0; i < n; i++)
    203 					if (hand[i].rank == crd.rank &&
    204 					    hand[i].suit == crd.suit)
    205 						break;
    206 				if (i >= n) {
    207 			printf("\nINFROM: isone or something messed up\n");
    208 					exit(77);
    209 				}
    210 				return (i);
    211 			}
    212 		} else			/* if not full card... */
    213 			if (crd.rank != EMPTY) {
    214 				for (i = 0; i < n; i++)
    215 					if (hand[i].rank == crd.rank)
    216 						break;
    217 				if (i >= n)
    218 					msg("No such rank in your hand");
    219 				else {
    220 					for (j = i + 1; j < n; j++)
    221 						if (hand[j].rank == crd.rank)
    222 							break;
    223 					if (j < n)
    224 						msg("Ambiguous rank");
    225 					else
    226 						return (i);
    227 				}
    228 			} else
    229 				msg("Sorry, I missed that");
    230 	}
    231 	/* NOTREACHED */
    232 }
    233 
    234 /*
    235  * incard:
    236  *	Inputs a card in any format.  It reads a line ending with a CR
    237  *	and then parses it.
    238  */
    239 int
    240 incard(crd)
    241 	CARD *crd;
    242 {
    243 	register int i;
    244 	int rnk, sut;
    245 	char *line, *p, *p1;
    246 	BOOLEAN retval;
    247 
    248 	retval = FALSE;
    249 	rnk = sut = EMPTY;
    250 	if (!(line = getline()))
    251 		goto gotit;
    252 	p = p1 = line;
    253 	while (*p1 != ' ' && *p1 != NULL)
    254 		++p1;
    255 	*p1++ = NULL;
    256 	if (*p == NULL)
    257 		goto gotit;
    258 
    259 	/* IMPORTANT: no real card has 2 char first name */
    260 	if (strlen(p) == 2) {	/* check for short form */
    261 		rnk = EMPTY;
    262 		for (i = 0; i < RANKS; i++) {
    263 			if (*p == *rankchar[i]) {
    264 				rnk = i;
    265 				break;
    266 			}
    267 		}
    268 		if (rnk == EMPTY)
    269 			goto gotit;	/* it's nothing... */
    270 		++p;		/* advance to next char */
    271 		sut = EMPTY;
    272 		for (i = 0; i < SUITS; i++) {
    273 			if (*p == *suitchar[i]) {
    274 				sut = i;
    275 				break;
    276 			}
    277 		}
    278 		if (sut != EMPTY)
    279 			retval = TRUE;
    280 		goto gotit;
    281 	}
    282 	rnk = EMPTY;
    283 	for (i = 0; i < RANKS; i++) {
    284 		if (!strcmp(p, rankname[i]) || !strcmp(p, rankchar[i])) {
    285 			rnk = i;
    286 			break;
    287 		}
    288 	}
    289 	if (rnk == EMPTY)
    290 		goto gotit;
    291 	p = p1;
    292 	while (*p1 != ' ' && *p1 != NULL)
    293 		++p1;
    294 	*p1++ = NULL;
    295 	if (*p == NULL)
    296 		goto gotit;
    297 	if (!strcmp("OF", p)) {
    298 		p = p1;
    299 		while (*p1 != ' ' && *p1 != NULL)
    300 			++p1;
    301 		*p1++ = NULL;
    302 		if (*p == NULL)
    303 			goto gotit;
    304 	}
    305 	sut = EMPTY;
    306 	for (i = 0; i < SUITS; i++) {
    307 		if (!strcmp(p, suitname[i]) || !strcmp(p, suitchar[i])) {
    308 			sut = i;
    309 			break;
    310 		}
    311 	}
    312 	if (sut != EMPTY)
    313 		retval = TRUE;
    314 gotit:
    315 	(*crd).rank = rnk;
    316 	(*crd).suit = sut;
    317 	return (retval);
    318 }
    319 
    320 /*
    321  * getuchar:
    322  *	Reads and converts to upper case
    323  */
    324 int
    325 getuchar()
    326 {
    327 	register int c;
    328 
    329 	c = readchar();
    330 	if (islower(c))
    331 		c = toupper(c);
    332 	waddch(Msgwin, c);
    333 	return (c);
    334 }
    335 
    336 /*
    337  * number:
    338  *	Reads in a decimal number and makes sure it is between "lo" and
    339  *	"hi" inclusive.
    340  */
    341 int
    342 number(lo, hi, prompt)
    343 	int lo, hi;
    344 	char *prompt;
    345 {
    346 	register char *p;
    347 	register int sum;
    348 
    349 	for (sum = 0;;) {
    350 		msg(prompt);
    351 		if (!(p = getline()) || *p == NULL) {
    352 			msg(quiet ? "Not a number" :
    353 			    "That doesn't look like a number");
    354 			continue;
    355 		}
    356 		sum = 0;
    357 
    358 		if (!isdigit(*p))
    359 			sum = lo - 1;
    360 		else
    361 			while (isdigit(*p)) {
    362 				sum = 10 * sum + (*p - '0');
    363 				++p;
    364 			}
    365 
    366 		if (*p != ' ' && *p != '\t' && *p != NULL)
    367 			sum = lo - 1;
    368 		if (sum >= lo && sum <= hi)
    369 			break;
    370 		if (sum == lo - 1)
    371 			msg("that doesn't look like a number, try again --> ");
    372 		else
    373 		msg("%d is not between %d and %d inclusive, try again --> ",
    374 			    sum, lo, hi);
    375 	}
    376 	return (sum);
    377 }
    378 
    379 /*
    380  * msg:
    381  *	Display a message at the top of the screen.
    382  */
    383 char    Msgbuf[BUFSIZ] = {'\0'};
    384 int     Mpos = 0;
    385 static int Newpos = 0;
    386 
    387 void
    388 #if __STDC__
    389 msg(const char *fmt, ...)
    390 #else
    391 msg(fmt, va_alist)
    392 	char *fmt;
    393 	va_dcl
    394 #endif
    395 {
    396 	va_list ap;
    397 
    398 #if __STDC__
    399 	va_start(ap, fmt);
    400 #else
    401 	va_start(ap);
    402 #endif
    403 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    404 	va_end(ap);
    405 	endmsg();
    406 }
    407 
    408 /*
    409  * addmsg:
    410  *	Add things to the current message
    411  */
    412 void
    413 #if __STDC__
    414 addmsg(const char *fmt, ...)
    415 #else
    416 addmsg(fmt, va_alist)
    417 	char *fmt;
    418 	va_dcl
    419 #endif
    420 {
    421 	va_list ap;
    422 
    423 #if __STDC__
    424 	va_start(ap, fmt);
    425 #else
    426 	va_start(ap);
    427 #endif
    428 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    429 	va_end(ap);
    430 }
    431 
    432 /*
    433  * endmsg:
    434  *	Display a new msg.
    435  */
    436 int     Lineno = 0;
    437 
    438 void
    439 endmsg()
    440 {
    441 	static int lastline = 0;
    442 	register int len;
    443 	register char *mp, *omp;
    444 
    445 	/* All messages should start with uppercase */
    446 	mvaddch(lastline + Y_MSG_START, SCORE_X, ' ');
    447 	if (islower(Msgbuf[0]) && Msgbuf[1] != ')')
    448 		Msgbuf[0] = toupper(Msgbuf[0]);
    449 	mp = Msgbuf;
    450 	len = strlen(mp);
    451 	if (len / MSG_X + Lineno >= MSG_Y) {
    452 		while (Lineno < MSG_Y) {
    453 			wmove(Msgwin, Lineno++, 0);
    454 			wclrtoeol(Msgwin);
    455 		}
    456 		Lineno = 0;
    457 	}
    458 	mvaddch(Lineno + Y_MSG_START, SCORE_X, '*');
    459 	lastline = Lineno;
    460 	do {
    461 		mvwaddstr(Msgwin, Lineno, 0, mp);
    462 		if ((len = strlen(mp)) > MSG_X) {
    463 			omp = mp;
    464 			for (mp = &mp[MSG_X - 1]; *mp != ' '; mp--)
    465 				continue;
    466 			while (*mp == ' ')
    467 				mp--;
    468 			mp++;
    469 			wmove(Msgwin, Lineno, mp - omp);
    470 			wclrtoeol(Msgwin);
    471 		}
    472 		if (++Lineno >= MSG_Y)
    473 			Lineno = 0;
    474 	} while (len > MSG_X);
    475 	wclrtoeol(Msgwin);
    476 	Mpos = len;
    477 	Newpos = 0;
    478 	wrefresh(Msgwin);
    479 	refresh();
    480 	wrefresh(Msgwin);
    481 }
    482 
    483 /*
    484  * do_wait:
    485  *	Wait for the user to type ' ' before doing anything else
    486  */
    487 void
    488 do_wait()
    489 {
    490 	static char prompt[] = {'-', '-', 'M', 'o', 'r', 'e', '-', '-', '\0'};
    491 
    492 	if (Mpos + sizeof prompt < MSG_X)
    493 		wmove(Msgwin, Lineno > 0 ? Lineno - 1 : MSG_Y - 1, Mpos);
    494 	else {
    495 		mvwaddch(Msgwin, Lineno, 0, ' ');
    496 		wclrtoeol(Msgwin);
    497 		if (++Lineno >= MSG_Y)
    498 			Lineno = 0;
    499 	}
    500 	waddstr(Msgwin, prompt);
    501 	wrefresh(Msgwin);
    502 	wait_for(' ');
    503 }
    504 
    505 /*
    506  * wait_for
    507  *	Sit around until the guy types the right key
    508  */
    509 void
    510 wait_for(ch)
    511 	register int ch;
    512 {
    513 	register char c;
    514 
    515 	if (ch == '\n')
    516 		while ((c = readchar()) != '\n')
    517 			continue;
    518 	else
    519 		while (readchar() != ch)
    520 			continue;
    521 }
    522 
    523 /*
    524  * readchar:
    525  *	Reads and returns a character, checking for gross input errors
    526  */
    527 int
    528 readchar()
    529 {
    530 	register int cnt;
    531 	char c;
    532 
    533 over:
    534 	cnt = 0;
    535 	while (read(STDIN_FILENO, &c, sizeof(char)) <= 0)
    536 		if (cnt++ > 100) {	/* if we are getting infinite EOFs */
    537 			bye();		/* quit the game */
    538 			exit(1);
    539 		}
    540 	if (c == CTRL('L')) {
    541 		wrefresh(curscr);
    542 		goto over;
    543 	}
    544 	if (c == '\r')
    545 		return ('\n');
    546 	else
    547 		return (c);
    548 }
    549 
    550 /*
    551  * getline:
    552  *      Reads the next line up to '\n' or EOF.  Multiple spaces are
    553  *	compressed to one space; a space is inserted before a ','
    554  */
    555 char *
    556 getline()
    557 {
    558 	register char *sp;
    559 	register int c, oy, ox;
    560 	register WINDOW *oscr;
    561 
    562 	oscr = stdscr;
    563 	stdscr = Msgwin;
    564 	getyx(stdscr, oy, ox);
    565 	refresh();
    566 	/* loop reading in the string, and put it in a temporary buffer */
    567 	for (sp = linebuf; (c = readchar()) != '\n'; clrtoeol(), refresh()) {
    568 		if (c == -1)
    569 			continue;
    570 		else
    571 			if (c == erasechar()) {	/* process erase character */
    572 				if (sp > linebuf) {
    573 					register int i;
    574 
    575 					sp--;
    576 					for (i = strlen(unctrl(*sp)); i; i--)
    577 						addch('\b');
    578 				}
    579 				continue;
    580 			} else
    581 				if (c == killchar()) {	/* process kill
    582 							 * character */
    583 					sp = linebuf;
    584 					move(oy, ox);
    585 					continue;
    586 				} else
    587 					if (sp == linebuf && c == ' ')
    588 						continue;
    589 		if (sp >= &linebuf[LINESIZE - 1] || !(isprint(c) || c == ' '))
    590 			putchar(CTRL('G'));
    591 		else {
    592 			if (islower(c))
    593 				c = toupper(c);
    594 			*sp++ = c;
    595 			addstr(unctrl(c));
    596 			Mpos++;
    597 		}
    598 	}
    599 	*sp = '\0';
    600 	stdscr = oscr;
    601 	return (linebuf);
    602 }
    603 
    604 void
    605 rint(signo)
    606 	int signo;
    607 {
    608 	bye();
    609 	exit(1);
    610 }
    611 
    612 /*
    613  * bye:
    614  *	Leave the program, cleaning things up as we go.
    615  */
    616 void
    617 bye()
    618 {
    619 	signal(SIGINT, SIG_IGN);
    620 	mvcur(0, COLS - 1, LINES - 1, 0);
    621 	fflush(stdout);
    622 	endwin();
    623 	putchar('\n');
    624 }
    625