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io.c revision 1.15 
      1 /*	$NetBSD: io.c,v 1.15 2002/05/26 00:12:11 wiz 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 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)io.c	8.1 (Berkeley) 5/31/93";
     40 #else
     41 __RCSID("$NetBSD: io.c,v 1.15 2002/05/26 00:12:11 wiz Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <ctype.h>
     46 #include <curses.h>
     47 #include <signal.h>
     48 #include <stdarg.h>
     49 #include <stdlib.h>
     50 #include <string.h>
     51 #include <termios.h>
     52 #include <unistd.h>
     53 
     54 #include "deck.h"
     55 #include "cribbage.h"
     56 #include "cribcur.h"
     57 
     58 #define	LINESIZE		128
     59 
     60 #ifdef CTRL
     61 #undef CTRL
     62 #endif
     63 #define	CTRL(X)			(X - 'A' + 1)
     64 
     65 char    linebuf[LINESIZE];
     66 
     67 const char   *const rankname[RANKS] = {
     68 	"ACE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN",
     69 	"EIGHT", "NINE", "TEN", "JACK", "QUEEN", "KING"
     70 };
     71 
     72 const char   *const rankchar[RANKS] = {
     73 	"A", "2", "3", "4", "5", "6", "7", "8", "9", "T", "J", "Q", "K"
     74 };
     75 
     76 const char *const suitname[SUITS] = {"SPADES", "HEARTS", "DIAMONDS", "CLUBS"};
     77 
     78 const char   *const suitchar[SUITS] = {"S", "H", "D", "C"};
     79 
     80 /*
     81  * msgcard:
     82  *	Call msgcrd in one of two forms
     83  */
     84 int
     85 msgcard(c, brief)
     86 	CARD c;
     87 	BOOLEAN brief;
     88 {
     89 	if (brief)
     90 		return (msgcrd(c, TRUE, NULL, TRUE));
     91 	else
     92 		return (msgcrd(c, FALSE, " of ", FALSE));
     93 }
     94 
     95 /*
     96  * msgcrd:
     97  *	Print the value of a card in ascii
     98  */
     99 int
    100 msgcrd(c, brfrank, mid, brfsuit)
    101 	CARD c;
    102 	BOOLEAN brfrank, brfsuit;
    103 	const char *mid;
    104 {
    105 	if (c.rank == EMPTY || c.suit == EMPTY)
    106 		return (FALSE);
    107 	if (brfrank)
    108 		addmsg("%1.1s", rankchar[c.rank]);
    109 	else
    110 		addmsg(rankname[c.rank]);
    111 	if (mid != NULL)
    112 		addmsg(mid);
    113 	if (brfsuit)
    114 		addmsg("%1.1s", suitchar[c.suit]);
    115 	else
    116 		addmsg(suitname[c.suit]);
    117 	return (TRUE);
    118 }
    119 
    120 /*
    121  * printcard:
    122  *	Print out a card.
    123  */
    124 void
    125 printcard(win, cardno, c, blank)
    126 	WINDOW *win;
    127 	int     cardno;
    128 	CARD    c;
    129 	BOOLEAN blank;
    130 {
    131 	prcard(win, cardno * 2, cardno, c, blank);
    132 }
    133 
    134 /*
    135  * prcard:
    136  *	Print out a card on the window at the specified location
    137  */
    138 void
    139 prcard(win, y, x, c, blank)
    140 	WINDOW *win;
    141 	int y, x;
    142 	CARD c;
    143 	BOOLEAN blank;
    144 {
    145 	if (c.rank == EMPTY)
    146 		return;
    147 
    148 	mvwaddstr(win, y + 0, x, "+-----+");
    149 	mvwaddstr(win, y + 1, x, "|     |");
    150 	mvwaddstr(win, y + 2, x, "|     |");
    151 	mvwaddstr(win, y + 3, x, "|     |");
    152 	mvwaddstr(win, y + 4, x, "+-----+");
    153 	if (!blank) {
    154 		mvwaddch(win, y + 1, x + 1, rankchar[c.rank][0]);
    155 		waddch(win, suitchar[c.suit][0]);
    156 		mvwaddch(win, y + 3, x + 4, rankchar[c.rank][0]);
    157 		waddch(win, suitchar[c.suit][0]);
    158 	}
    159 }
    160 
    161 /*
    162  * prhand:
    163  *	Print a hand of n cards
    164  */
    165 void
    166 prhand(h, n, win, blank)
    167 	const CARD h[];
    168 	int n;
    169 	WINDOW *win;
    170 	BOOLEAN blank;
    171 {
    172 	int i;
    173 
    174 	werase(win);
    175 	for (i = 0; i < n; i++)
    176 		printcard(win, i, *h++, blank);
    177 	wrefresh(win);
    178 }
    179 
    180 /*
    181  * infrom:
    182  *	reads a card, supposedly in hand, accepting unambigous brief
    183  *	input, returns the index of the card found...
    184  */
    185 int
    186 infrom(hand, n, prompt)
    187 	const CARD hand[];
    188 	int n;
    189 	const char *prompt;
    190 {
    191 	int i, j;
    192 	CARD crd;
    193 
    194 	if (n < 1) {
    195 		printf("\nINFROM: %d = n < 1!!\n", n);
    196 		exit(74);
    197 	}
    198 	for (;;) {
    199 		msg(prompt);
    200 		if (incard(&crd)) {	/* if card is full card */
    201 			if (!is_one(crd, hand, n))
    202 				msg("That's not in your hand");
    203 			else {
    204 				for (i = 0; i < n; i++)
    205 					if (hand[i].rank == crd.rank &&
    206 					    hand[i].suit == crd.suit)
    207 						break;
    208 				if (i >= n) {
    209 			printf("\nINFROM: is_one or something messed up\n");
    210 					exit(77);
    211 				}
    212 				return (i);
    213 			}
    214 		} else			/* if not full card... */
    215 			if (crd.rank != EMPTY) {
    216 				for (i = 0; i < n; i++)
    217 					if (hand[i].rank == crd.rank)
    218 						break;
    219 				if (i >= n)
    220 					msg("No such rank in your hand");
    221 				else {
    222 					for (j = i + 1; j < n; j++)
    223 						if (hand[j].rank == crd.rank)
    224 							break;
    225 					if (j < n)
    226 						msg("Ambiguous rank");
    227 					else
    228 						return (i);
    229 				}
    230 			} else
    231 				msg("Sorry, I missed that");
    232 	}
    233 	/* NOTREACHED */
    234 }
    235 
    236 /*
    237  * incard:
    238  *	Inputs a card in any format.  It reads a line ending with a CR
    239  *	and then parses it.
    240  */
    241 int
    242 incard(crd)
    243 	CARD *crd;
    244 {
    245 	int i;
    246 	int rnk, sut;
    247 	char *line, *p, *p1;
    248 	BOOLEAN retval;
    249 
    250 	retval = FALSE;
    251 	rnk = sut = EMPTY;
    252 	if (!(line = getline()))
    253 		goto gotit;
    254 	p = p1 = line;
    255 	while (*p1 != ' ' && *p1 != '\0')
    256 		++p1;
    257 	*p1++ = '\0';
    258 	if (*p == '\0')
    259 		goto gotit;
    260 
    261 	/* IMPORTANT: no real card has 2 char first name */
    262 	if (strlen(p) == 2) {	/* check for short form */
    263 		rnk = EMPTY;
    264 		for (i = 0; i < RANKS; i++) {
    265 			if (*p == *rankchar[i]) {
    266 				rnk = i;
    267 				break;
    268 			}
    269 		}
    270 		if (rnk == EMPTY)
    271 			goto gotit;	/* it's nothing... */
    272 		++p;		/* advance to next char */
    273 		sut = EMPTY;
    274 		for (i = 0; i < SUITS; i++) {
    275 			if (*p == *suitchar[i]) {
    276 				sut = i;
    277 				break;
    278 			}
    279 		}
    280 		if (sut != EMPTY)
    281 			retval = TRUE;
    282 		goto gotit;
    283 	}
    284 	rnk = EMPTY;
    285 	for (i = 0; i < RANKS; i++) {
    286 		if (!strcmp(p, rankname[i]) || !strcmp(p, rankchar[i])) {
    287 			rnk = i;
    288 			break;
    289 		}
    290 	}
    291 	if (rnk == EMPTY)
    292 		goto gotit;
    293 	p = p1;
    294 	while (*p1 != ' ' && *p1 != '\0')
    295 		++p1;
    296 	*p1++ = '\0';
    297 	if (*p == '\0')
    298 		goto gotit;
    299 	if (!strcmp("OF", p)) {
    300 		p = p1;
    301 		while (*p1 != ' ' && *p1 != '\0')
    302 			++p1;
    303 		*p1++ = '\0';
    304 		if (*p == '\0')
    305 			goto gotit;
    306 	}
    307 	sut = EMPTY;
    308 	for (i = 0; i < SUITS; i++) {
    309 		if (!strcmp(p, suitname[i]) || !strcmp(p, suitchar[i])) {
    310 			sut = i;
    311 			break;
    312 		}
    313 	}
    314 	if (sut != EMPTY)
    315 		retval = TRUE;
    316 gotit:
    317 	(*crd).rank = rnk;
    318 	(*crd).suit = sut;
    319 	return (retval);
    320 }
    321 
    322 /*
    323  * getuchar:
    324  *	Reads and converts to upper case
    325  */
    326 int
    327 getuchar()
    328 {
    329 	int c;
    330 
    331 	c = readchar();
    332 	if (islower(c))
    333 		c = toupper(c);
    334 	waddch(Msgwin, c);
    335 	return (c);
    336 }
    337 
    338 /*
    339  * number:
    340  *	Reads in a decimal number and makes sure it is between "lo" and
    341  *	"hi" inclusive.
    342  */
    343 int
    344 number(lo, hi, prompt)
    345 	int lo, hi;
    346 	const char *prompt;
    347 {
    348 	char *p;
    349 	int sum;
    350 
    351 	for (sum = 0;;) {
    352 		msg(prompt);
    353 		if (!(p = getline()) || *p == '\0') {
    354 			msg(quiet ? "Not a number" :
    355 			    "That doesn't look like a number");
    356 			continue;
    357 		}
    358 		sum = 0;
    359 
    360 		if (!isdigit(*p))
    361 			sum = lo - 1;
    362 		else
    363 			while (isdigit(*p)) {
    364 				sum = 10 * sum + (*p - '0');
    365 				++p;
    366 			}
    367 
    368 		if (*p != ' ' && *p != '\t' && *p != '\0')
    369 			sum = lo - 1;
    370 		if (sum >= lo && sum <= hi)
    371 			break;
    372 		if (sum == lo - 1)
    373 			msg("that doesn't look like a number, try again --> ");
    374 		else
    375 		msg("%d is not between %d and %d inclusive, try again --> ",
    376 			    sum, lo, hi);
    377 	}
    378 	return (sum);
    379 }
    380 
    381 /*
    382  * msg:
    383  *	Display a message at the top of the screen.
    384  */
    385 char    Msgbuf[BUFSIZ] = {'\0'};
    386 int     Mpos = 0;
    387 static int Newpos = 0;
    388 
    389 void
    390 msg(const char *fmt, ...)
    391 {
    392 	va_list ap;
    393 
    394 	va_start(ap, fmt);
    395 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    396 	Newpos = strlen(Msgbuf);
    397 	va_end(ap);
    398 	endmsg();
    399 }
    400 
    401 /*
    402  * addmsg:
    403  *	Add things to the current message
    404  */
    405 void
    406 addmsg(const char *fmt, ...)
    407 {
    408 	va_list ap;
    409 
    410 	va_start(ap, fmt);
    411 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    412 	Newpos = strlen(Msgbuf);
    413 	va_end(ap);
    414 }
    415 
    416 /*
    417  * endmsg:
    418  *	Display a new msg.
    419  */
    420 int     Lineno = 0;
    421 
    422 void
    423 endmsg()
    424 {
    425 	static int lastline = 0;
    426 	int len;
    427 	char *mp, *omp;
    428 
    429 	/* All messages should start with uppercase */
    430 	mvaddch(lastline + Y_MSG_START, SCORE_X, ' ');
    431 	if (islower(Msgbuf[0]) && Msgbuf[1] != ')')
    432 		Msgbuf[0] = toupper(Msgbuf[0]);
    433 	mp = Msgbuf;
    434 	len = strlen(mp);
    435 	if (len / MSG_X + Lineno >= MSG_Y) {
    436 		while (Lineno < MSG_Y) {
    437 			wmove(Msgwin, Lineno++, 0);
    438 			wclrtoeol(Msgwin);
    439 		}
    440 		Lineno = 0;
    441 	}
    442 	mvaddch(Lineno + Y_MSG_START, SCORE_X, '*');
    443 	lastline = Lineno;
    444 	do {
    445 		mvwaddstr(Msgwin, Lineno, 0, mp);
    446 		if ((len = strlen(mp)) > MSG_X) {
    447 			omp = mp;
    448 			for (mp = &mp[MSG_X - 1]; *mp != ' '; mp--)
    449 				continue;
    450 			while (*mp == ' ')
    451 				mp--;
    452 			mp++;
    453 			wmove(Msgwin, Lineno, mp - omp);
    454 			wclrtoeol(Msgwin);
    455 		}
    456 		if (++Lineno >= MSG_Y)
    457 			Lineno = 0;
    458 	} while (len > MSG_X);
    459 	wclrtoeol(Msgwin);
    460 	Mpos = len;
    461 	Newpos = 0;
    462 	wrefresh(Msgwin);
    463 	refresh();
    464 	wrefresh(Msgwin);
    465 }
    466 
    467 /*
    468  * do_wait:
    469  *	Wait for the user to type ' ' before doing anything else
    470  */
    471 void
    472 do_wait()
    473 {
    474 	static const char prompt[] = {'-', '-', 'M', 'o', 'r', 'e', '-', '-', '\0'};
    475 
    476 	if ((int)(Mpos + sizeof prompt) < MSG_X)
    477 		wmove(Msgwin, Lineno > 0 ? Lineno - 1 : MSG_Y - 1, Mpos);
    478 	else {
    479 		mvwaddch(Msgwin, Lineno, 0, ' ');
    480 		wclrtoeol(Msgwin);
    481 		if (++Lineno >= MSG_Y)
    482 			Lineno = 0;
    483 	}
    484 	waddstr(Msgwin, prompt);
    485 	wrefresh(Msgwin);
    486 	wait_for(' ');
    487 }
    488 
    489 /*
    490  * wait_for
    491  *	Sit around until the guy types the right key
    492  */
    493 void
    494 wait_for(ch)
    495 	int ch;
    496 {
    497 	char c;
    498 
    499 	if (ch == '\n')
    500 		while ((c = readchar()) != '\n')
    501 			continue;
    502 	else
    503 		while (readchar() != ch)
    504 			continue;
    505 }
    506 
    507 /*
    508  * readchar:
    509  *	Reads and returns a character, checking for gross input errors
    510  */
    511 int
    512 readchar()
    513 {
    514 	int cnt;
    515 	char c;
    516 
    517 over:
    518 	cnt = 0;
    519 	while (read(STDIN_FILENO, &c, sizeof(char)) <= 0)
    520 		if (cnt++ > 100) {	/* if we are getting infinite EOFs */
    521 			bye();		/* quit the game */
    522 			exit(1);
    523 		}
    524 	if (c == CTRL('L')) {
    525 		wrefresh(curscr);
    526 		goto over;
    527 	}
    528 	if (c == '\r')
    529 		return ('\n');
    530 	else
    531 		return (c);
    532 }
    533 
    534 /*
    535  * getline:
    536  *      Reads the next line up to '\n' or EOF.  Multiple spaces are
    537  *	compressed to one space; a space is inserted before a ','
    538  */
    539 char *
    540 getline()
    541 {
    542 	char *sp;
    543 	int c, oy, ox;
    544 	WINDOW *oscr;
    545 
    546 	oscr = stdscr;
    547 	stdscr = Msgwin;
    548 	getyx(stdscr, oy, ox);
    549 	refresh();
    550 	/* loop reading in the string, and put it in a temporary buffer */
    551 	for (sp = linebuf; (c = readchar()) != '\n'; clrtoeol(), refresh()) {
    552 		if (c == -1)
    553 			continue;
    554 		else
    555 			if (c == erasechar()) {	/* process erase character */
    556 				if (sp > linebuf) {
    557 					int i;
    558 
    559 					sp--;
    560 					for (i = strlen(unctrl(*sp)); i; i--)
    561 						addch('\b');
    562 				}
    563 				continue;
    564 			} else
    565 				if (c == killchar()) {	/* process kill
    566 							 * character */
    567 					sp = linebuf;
    568 					move(oy, ox);
    569 					continue;
    570 				} else
    571 					if (sp == linebuf && c == ' ')
    572 						continue;
    573 		if (sp >= &linebuf[LINESIZE - 1] || !(isprint(c) || c == ' '))
    574 			putchar(CTRL('G'));
    575 		else {
    576 			if (islower(c))
    577 				c = toupper(c);
    578 			*sp++ = c;
    579 			addstr(unctrl(c));
    580 			Mpos++;
    581 		}
    582 	}
    583 	*sp = '\0';
    584 	stdscr = oscr;
    585 	return (linebuf);
    586 }
    587 
    588 void
    589 rint(signo)
    590 	int signo __attribute__((__unused__));
    591 {
    592 	bye();
    593 	exit(1);
    594 }
    595 
    596 /*
    597  * bye:
    598  *	Leave the program, cleaning things up as we go.
    599  */
    600 void
    601 bye()
    602 {
    603 	signal(SIGINT, SIG_IGN);
    604 	mvcur(0, COLS - 1, LINES - 1, 0);
    605 	fflush(stdout);
    606 	endwin();
    607 	putchar('\n');
    608 }
    609