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io.c revision 1.7 
      1 /*	$NetBSD: io.c,v 1.7 1995/03/21 15:08:53 cgd Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1980, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #ifndef lint
     37 #if 0
     38 static char sccsid[] = "@(#)io.c	8.1 (Berkeley) 5/31/93";
     39 #else
     40 static char rcsid[] = "$NetBSD: io.c,v 1.7 1995/03/21 15:08:53 cgd Exp $";
     41 #endif
     42 #endif /* not lint */
     43 
     44 #include <ctype.h>
     45 #include <curses.h>
     46 #include <signal.h>
     47 #include <stdlib.h>
     48 #include <string.h>
     49 #include <termios.h>
     50 #include <unistd.h>
     51 
     52 #if __STDC__
     53 #include <stdarg.h>
     54 #else
     55 #include <varargs.h>
     56 #endif
     57 
     58 #include "deck.h"
     59 #include "cribbage.h"
     60 #include "cribcur.h"
     61 
     62 #define	LINESIZE		128
     63 
     64 #ifdef CTRL
     65 #undef CTRL
     66 #endif
     67 #define	CTRL(X)			(X - 'A' + 1)
     68 
     69 char    linebuf[LINESIZE];
     70 
     71 char   *rankname[RANKS] = {
     72 	"ACE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN",
     73 	"EIGHT", "NINE", "TEN", "JACK", "QUEEN", "KING"
     74 };
     75 
     76 char   *rankchar[RANKS] = {
     77 	"A", "2", "3", "4", "5", "6", "7", "8", "9", "T", "J", "Q", "K"
     78 };
     79 
     80 char   *suitname[SUITS] = {"SPADES", "HEARTS", "DIAMONDS", "CLUBS"};
     81 
     82 char   *suitchar[SUITS] = {"S", "H", "D", "C"};
     83 
     84 /*
     85  * msgcard:
     86  *	Call msgcrd in one of two forms
     87  */
     88 int
     89 msgcard(c, brief)
     90 	CARD c;
     91 	BOOLEAN brief;
     92 {
     93 	if (brief)
     94 		return (msgcrd(c, TRUE, NULL, TRUE));
     95 	else
     96 		return (msgcrd(c, FALSE, " of ", FALSE));
     97 }
     98 
     99 /*
    100  * msgcrd:
    101  *	Print the value of a card in ascii
    102  */
    103 int
    104 msgcrd(c, brfrank, mid, brfsuit)
    105 	CARD c;
    106 	BOOLEAN brfrank, brfsuit;
    107 	char *mid;
    108 {
    109 	if (c.rank == EMPTY || c.suit == EMPTY)
    110 		return (FALSE);
    111 	if (brfrank)
    112 		addmsg("%1.1s", rankchar[c.rank]);
    113 	else
    114 		addmsg(rankname[c.rank]);
    115 	if (mid != NULL)
    116 		addmsg(mid);
    117 	if (brfsuit)
    118 		addmsg("%1.1s", suitchar[c.suit]);
    119 	else
    120 		addmsg(suitname[c.suit]);
    121 	return (TRUE);
    122 }
    123 
    124 /*
    125  * printcard:
    126  *	Print out a card.
    127  */
    128 void
    129 printcard(win, cardno, c, blank)
    130 	WINDOW *win;
    131 	int     cardno;
    132 	CARD    c;
    133 	BOOLEAN blank;
    134 {
    135 	prcard(win, cardno * 2, cardno, c, blank);
    136 }
    137 
    138 /*
    139  * prcard:
    140  *	Print out a card on the window at the specified location
    141  */
    142 void
    143 prcard(win, y, x, c, blank)
    144 	WINDOW *win;
    145 	int y, x;
    146 	CARD c;
    147 	BOOLEAN blank;
    148 {
    149 	if (c.rank == EMPTY)
    150 		return;
    151 
    152 	mvwaddstr(win, y + 0, x, "+-----+");
    153 	mvwaddstr(win, y + 1, x, "|     |");
    154 	mvwaddstr(win, y + 2, x, "|     |");
    155 	mvwaddstr(win, y + 3, x, "|     |");
    156 	mvwaddstr(win, y + 4, x, "+-----+");
    157 	if (!blank) {
    158 		mvwaddch(win, y + 1, x + 1, rankchar[c.rank][0]);
    159 		waddch(win, suitchar[c.suit][0]);
    160 		mvwaddch(win, y + 3, x + 4, rankchar[c.rank][0]);
    161 		waddch(win, suitchar[c.suit][0]);
    162 	}
    163 }
    164 
    165 /*
    166  * prhand:
    167  *	Print a hand of n cards
    168  */
    169 void
    170 prhand(h, n, win, blank)
    171 	CARD h[];
    172 	int n;
    173 	WINDOW *win;
    174 	BOOLEAN blank;
    175 {
    176 	register int i;
    177 
    178 	werase(win);
    179 	for (i = 0; i < n; i++)
    180 		printcard(win, i, *h++, blank);
    181 	wrefresh(win);
    182 }
    183 
    184 /*
    185  * infrom:
    186  *	reads a card, supposedly in hand, accepting unambigous brief
    187  *	input, returns the index of the card found...
    188  */
    189 int
    190 infrom(hand, n, prompt)
    191 	CARD hand[];
    192 	int n;
    193 	char *prompt;
    194 {
    195 	register int i, j;
    196 	CARD crd;
    197 
    198 	if (n < 1) {
    199 		printf("\nINFROM: %d = n < 1!!\n", n);
    200 		exit(74);
    201 	}
    202 	for (;;) {
    203 		msg(prompt);
    204 		if (incard(&crd)) {	/* if card is full card */
    205 			if (!isone(crd, hand, n))
    206 				msg("That's not in your hand");
    207 			else {
    208 				for (i = 0; i < n; i++)
    209 					if (hand[i].rank == crd.rank &&
    210 					    hand[i].suit == crd.suit)
    211 						break;
    212 				if (i >= n) {
    213 			printf("\nINFROM: isone or something messed up\n");
    214 					exit(77);
    215 				}
    216 				return (i);
    217 			}
    218 		} else			/* if not full card... */
    219 			if (crd.rank != EMPTY) {
    220 				for (i = 0; i < n; i++)
    221 					if (hand[i].rank == crd.rank)
    222 						break;
    223 				if (i >= n)
    224 					msg("No such rank in your hand");
    225 				else {
    226 					for (j = i + 1; j < n; j++)
    227 						if (hand[j].rank == crd.rank)
    228 							break;
    229 					if (j < n)
    230 						msg("Ambiguous rank");
    231 					else
    232 						return (i);
    233 				}
    234 			} else
    235 				msg("Sorry, I missed that");
    236 	}
    237 	/* NOTREACHED */
    238 }
    239 
    240 /*
    241  * incard:
    242  *	Inputs a card in any format.  It reads a line ending with a CR
    243  *	and then parses it.
    244  */
    245 int
    246 incard(crd)
    247 	CARD *crd;
    248 {
    249 	register int i;
    250 	int rnk, sut;
    251 	char *line, *p, *p1;
    252 	BOOLEAN retval;
    253 
    254 	retval = FALSE;
    255 	rnk = sut = EMPTY;
    256 	if (!(line = getline()))
    257 		goto gotit;
    258 	p = p1 = line;
    259 	while (*p1 != ' ' && *p1 != NULL)
    260 		++p1;
    261 	*p1++ = NULL;
    262 	if (*p == NULL)
    263 		goto gotit;
    264 
    265 	/* IMPORTANT: no real card has 2 char first name */
    266 	if (strlen(p) == 2) {	/* check for short form */
    267 		rnk = EMPTY;
    268 		for (i = 0; i < RANKS; i++) {
    269 			if (*p == *rankchar[i]) {
    270 				rnk = i;
    271 				break;
    272 			}
    273 		}
    274 		if (rnk == EMPTY)
    275 			goto gotit;	/* it's nothing... */
    276 		++p;		/* advance to next char */
    277 		sut = EMPTY;
    278 		for (i = 0; i < SUITS; i++) {
    279 			if (*p == *suitchar[i]) {
    280 				sut = i;
    281 				break;
    282 			}
    283 		}
    284 		if (sut != EMPTY)
    285 			retval = TRUE;
    286 		goto gotit;
    287 	}
    288 	rnk = EMPTY;
    289 	for (i = 0; i < RANKS; i++) {
    290 		if (!strcmp(p, rankname[i]) || !strcmp(p, rankchar[i])) {
    291 			rnk = i;
    292 			break;
    293 		}
    294 	}
    295 	if (rnk == EMPTY)
    296 		goto gotit;
    297 	p = p1;
    298 	while (*p1 != ' ' && *p1 != NULL)
    299 		++p1;
    300 	*p1++ = NULL;
    301 	if (*p == NULL)
    302 		goto gotit;
    303 	if (!strcmp("OF", p)) {
    304 		p = p1;
    305 		while (*p1 != ' ' && *p1 != NULL)
    306 			++p1;
    307 		*p1++ = NULL;
    308 		if (*p == NULL)
    309 			goto gotit;
    310 	}
    311 	sut = EMPTY;
    312 	for (i = 0; i < SUITS; i++) {
    313 		if (!strcmp(p, suitname[i]) || !strcmp(p, suitchar[i])) {
    314 			sut = i;
    315 			break;
    316 		}
    317 	}
    318 	if (sut != EMPTY)
    319 		retval = TRUE;
    320 gotit:
    321 	(*crd).rank = rnk;
    322 	(*crd).suit = sut;
    323 	return (retval);
    324 }
    325 
    326 /*
    327  * getuchar:
    328  *	Reads and converts to upper case
    329  */
    330 int
    331 getuchar()
    332 {
    333 	register int c;
    334 
    335 	c = readchar();
    336 	if (islower(c))
    337 		c = toupper(c);
    338 	waddch(Msgwin, c);
    339 	return (c);
    340 }
    341 
    342 /*
    343  * number:
    344  *	Reads in a decimal number and makes sure it is between "lo" and
    345  *	"hi" inclusive.
    346  */
    347 int
    348 number(lo, hi, prompt)
    349 	int lo, hi;
    350 	char *prompt;
    351 {
    352 	register char *p;
    353 	register int sum;
    354 
    355 	for (sum = 0;;) {
    356 		msg(prompt);
    357 		if (!(p = getline()) || *p == NULL) {
    358 			msg(quiet ? "Not a number" :
    359 			    "That doesn't look like a number");
    360 			continue;
    361 		}
    362 		sum = 0;
    363 
    364 		if (!isdigit(*p))
    365 			sum = lo - 1;
    366 		else
    367 			while (isdigit(*p)) {
    368 				sum = 10 * sum + (*p - '0');
    369 				++p;
    370 			}
    371 
    372 		if (*p != ' ' && *p != '\t' && *p != NULL)
    373 			sum = lo - 1;
    374 		if (sum >= lo && sum <= hi)
    375 			break;
    376 		if (sum == lo - 1)
    377 			msg("that doesn't look like a number, try again --> ");
    378 		else
    379 		msg("%d is not between %d and %d inclusive, try again --> ",
    380 			    sum, lo, hi);
    381 	}
    382 	return (sum);
    383 }
    384 
    385 /*
    386  * msg:
    387  *	Display a message at the top of the screen.
    388  */
    389 char    Msgbuf[BUFSIZ] = {'\0'};
    390 int     Mpos = 0;
    391 static int Newpos = 0;
    392 
    393 void
    394 #if __STDC__
    395 msg(const char *fmt, ...)
    396 #else
    397 msg(fmt, va_alist)
    398 	char *fmt;
    399 	va_dcl
    400 #endif
    401 {
    402 	va_list ap;
    403 
    404 #if __STDC__
    405 	va_start(ap, fmt);
    406 #else
    407 	va_start(ap);
    408 #endif
    409 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    410 	va_end(ap);
    411 	endmsg();
    412 }
    413 
    414 /*
    415  * addmsg:
    416  *	Add things to the current message
    417  */
    418 void
    419 #if __STDC__
    420 addmsg(const char *fmt, ...)
    421 #else
    422 addmsg(fmt, va_alist)
    423 	char *fmt;
    424 	va_dcl
    425 #endif
    426 {
    427 	va_list ap;
    428 
    429 #if __STDC__
    430 	va_start(ap, fmt);
    431 #else
    432 	va_start(ap);
    433 #endif
    434 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    435 	va_end(ap);
    436 }
    437 
    438 /*
    439  * endmsg:
    440  *	Display a new msg.
    441  */
    442 int     Lineno = 0;
    443 
    444 void
    445 endmsg()
    446 {
    447 	static int lastline = 0;
    448 	register int len;
    449 	register char *mp, *omp;
    450 
    451 	/* All messages should start with uppercase */
    452 	mvaddch(lastline + Y_MSG_START, SCORE_X, ' ');
    453 	if (islower(Msgbuf[0]) && Msgbuf[1] != ')')
    454 		Msgbuf[0] = toupper(Msgbuf[0]);
    455 	mp = Msgbuf;
    456 	len = strlen(mp);
    457 	if (len / MSG_X + Lineno >= MSG_Y) {
    458 		while (Lineno < MSG_Y) {
    459 			wmove(Msgwin, Lineno++, 0);
    460 			wclrtoeol(Msgwin);
    461 		}
    462 		Lineno = 0;
    463 	}
    464 	mvaddch(Lineno + Y_MSG_START, SCORE_X, '*');
    465 	lastline = Lineno;
    466 	do {
    467 		mvwaddstr(Msgwin, Lineno, 0, mp);
    468 		if ((len = strlen(mp)) > MSG_X) {
    469 			omp = mp;
    470 			for (mp = &mp[MSG_X - 1]; *mp != ' '; mp--)
    471 				continue;
    472 			while (*mp == ' ')
    473 				mp--;
    474 			mp++;
    475 			wmove(Msgwin, Lineno, mp - omp);
    476 			wclrtoeol(Msgwin);
    477 		}
    478 		if (++Lineno >= MSG_Y)
    479 			Lineno = 0;
    480 	} while (len > MSG_X);
    481 	wclrtoeol(Msgwin);
    482 	Mpos = len;
    483 	Newpos = 0;
    484 	wrefresh(Msgwin);
    485 	refresh();
    486 	wrefresh(Msgwin);
    487 }
    488 
    489 /*
    490  * do_wait:
    491  *	Wait for the user to type ' ' before doing anything else
    492  */
    493 void
    494 do_wait()
    495 {
    496 	static char prompt[] = {'-', '-', 'M', 'o', 'r', 'e', '-', '-', '\0'};
    497 
    498 	if (Mpos + sizeof prompt < MSG_X)
    499 		wmove(Msgwin, Lineno > 0 ? Lineno - 1 : MSG_Y - 1, Mpos);
    500 	else {
    501 		mvwaddch(Msgwin, Lineno, 0, ' ');
    502 		wclrtoeol(Msgwin);
    503 		if (++Lineno >= MSG_Y)
    504 			Lineno = 0;
    505 	}
    506 	waddstr(Msgwin, prompt);
    507 	wrefresh(Msgwin);
    508 	wait_for(' ');
    509 }
    510 
    511 /*
    512  * wait_for
    513  *	Sit around until the guy types the right key
    514  */
    515 void
    516 wait_for(ch)
    517 	register int ch;
    518 {
    519 	register char c;
    520 
    521 	if (ch == '\n')
    522 		while ((c = readchar()) != '\n')
    523 			continue;
    524 	else
    525 		while (readchar() != ch)
    526 			continue;
    527 }
    528 
    529 /*
    530  * readchar:
    531  *	Reads and returns a character, checking for gross input errors
    532  */
    533 int
    534 readchar()
    535 {
    536 	register int cnt;
    537 	char c;
    538 
    539 over:
    540 	cnt = 0;
    541 	while (read(STDIN_FILENO, &c, sizeof(char)) <= 0)
    542 		if (cnt++ > 100) {	/* if we are getting infinite EOFs */
    543 			bye();		/* quit the game */
    544 			exit(1);
    545 		}
    546 	if (c == CTRL('L')) {
    547 		wrefresh(curscr);
    548 		goto over;
    549 	}
    550 	if (c == '\r')
    551 		return ('\n');
    552 	else
    553 		return (c);
    554 }
    555 
    556 /*
    557  * getline:
    558  *      Reads the next line up to '\n' or EOF.  Multiple spaces are
    559  *	compressed to one space; a space is inserted before a ','
    560  */
    561 char *
    562 getline()
    563 {
    564 	register char *sp;
    565 	register int c, oy, ox;
    566 	register WINDOW *oscr;
    567 
    568 	oscr = stdscr;
    569 	stdscr = Msgwin;
    570 	getyx(stdscr, oy, ox);
    571 	refresh();
    572 	/* loop reading in the string, and put it in a temporary buffer */
    573 	for (sp = linebuf; (c = readchar()) != '\n'; clrtoeol(), refresh()) {
    574 		if (c == -1)
    575 			continue;
    576 		else
    577 			if (c == erasechar()) {	/* process erase character */
    578 				if (sp > linebuf) {
    579 					register int i;
    580 
    581 					sp--;
    582 					for (i = strlen(unctrl(*sp)); i; i--)
    583 						addch('\b');
    584 				}
    585 				continue;
    586 			} else
    587 				if (c == killchar()) {	/* process kill
    588 							 * character */
    589 					sp = linebuf;
    590 					move(oy, ox);
    591 					continue;
    592 				} else
    593 					if (sp == linebuf && c == ' ')
    594 						continue;
    595 		if (sp >= &linebuf[LINESIZE - 1] || !(isprint(c) || c == ' '))
    596 			putchar(CTRL('G'));
    597 		else {
    598 			if (islower(c))
    599 				c = toupper(c);
    600 			*sp++ = c;
    601 			addstr(unctrl(c));
    602 			Mpos++;
    603 		}
    604 	}
    605 	*sp = '\0';
    606 	stdscr = oscr;
    607 	return (linebuf);
    608 }
    609 
    610 void
    611 rint(signo)
    612 	int signo;
    613 {
    614 	bye();
    615 	exit(1);
    616 }
    617 
    618 /*
    619  * bye:
    620  *	Leave the program, cleaning things up as we go.
    621  */
    622 void
    623 bye()
    624 {
    625 	signal(SIGINT, SIG_IGN);
    626 	mvcur(0, COLS - 1, LINES - 1, 0);
    627 	fflush(stdout);
    628 	endwin();
    629 	putchar('\n');
    630 }
    631