[unix-history] / usr / src / games / fish / fish.c

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Muffy Barkocy.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1990 The Regents of the University of California.\n\
 All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)fish.c	5.4 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <sys/errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pathnames.h"

#define	RANKS		13
#define	HANDSIZE	7
#define	CARDS		4

#define	USER		1
#define	COMPUTER	0
#define	OTHER(a)	(1 - (a))

char *cards[] = {
	"A", "2", "3", "4", "5", "6", "7",
	"8", "9", "10", "J", "Q", "K", NULL,
};
#define	PRC(card)	(void)printf(" %s", cards[card])

int promode;
int asked[RANKS], comphand[RANKS], deck[RANKS];
int userasked[RANKS], userhand[RANKS];

main(argc, argv)
	int argc;
	char **argv;
{
	int ch, move;

	while ((ch = getopt(argc, argv, "p")) != EOF)
		switch(ch) {
		case 'p':
			promode = 1;
			break;
		case '?':
		default:
			(void)fprintf(stderr, "usage: fish [-p]\n");
			exit(1);
		}

	srandom(time((time_t *)NULL));
	instructions();
	init();

	if (nrandom(2) == 1) {
		printplayer(COMPUTER);
		(void)printf("get to start.\n");
		goto istart;
	}
	printplayer(USER);
	(void)printf("get to start.\n");
	
	for (;;) {
		move = usermove();
		if (!comphand[move]) {
			if (gofish(move, USER, userhand))
				continue;
		} else {
			goodmove(USER, move, userhand, comphand);
			continue;
		}

istart:		for (;;) {
			move = compmove();
			if (!userhand[move]) {
				if (!gofish(move, COMPUTER, comphand))
					break;
			} else
				goodmove(COMPUTER, move, comphand, userhand);
		}
	}
	/* NOTREACHED */
}

usermove()
{
	register int n;
	register char **p;
	char buf[256];

	(void)printf("\nYour hand is:");
	printhand(userhand);

	for (;;) {
		(void)printf("You ask me for: ");
		(void)fflush(stdout);
		if (fgets(buf, BUFSIZ, stdin) == NULL)
			exit(0);
		if (buf[0] == '\0')
			continue;
		if (buf[0] == '\n') {
			(void)printf("%d cards in my hand, %d in the pool.\n",
			    countcards(comphand), countcards(deck));
			(void)printf("My books:");
			(void)countbooks(comphand);
			continue;
		}
		buf[strlen(buf) - 1] = '\0';
		if (!strcasecmp(buf, "p") && !promode) {
			promode = 1;
			(void)printf("Entering pro mode.\n");
			continue;
		}
		if (!strcasecmp(buf, "quit"))
			exit(0);
		for (p = cards; *p; ++p)
			if (!strcasecmp(*p, buf))
				break;
		if (!*p) {
			(void)printf("I don't understand!\n");
			continue;
		}
		n = p - cards;
		if (userhand[n]) {
			userasked[n] = 1;
			return(n);
		}
		if (nrandom(3) == 1)
			(void)printf("You don't have any of those!\n");
		else
			(void)printf("You don't have any %s's!\n", cards[n]);
		if (nrandom(4) == 1)
			(void)printf("No cheating!\n");
		(void)printf("Guess again.\n");
	}
	/* NOTREACHED */
}

compmove()
{
	static int lmove;

	if (promode)
		lmove = promove();
	else {
		do {
			lmove = (lmove + 1) % RANKS;
		} while (!comphand[lmove] || comphand[lmove] == CARDS);
	}
	asked[lmove] = 1;

	(void)printf("I ask you for: %s.\n", cards[lmove]);
	return(lmove);
}

promove()
{
	register int i, max;

	for (i = 0; i < RANKS; ++i)
		if (userasked[i] &&
		    comphand[i] > 0 && comphand[i] < CARDS) {
			userasked[i] = 0;
			return(i);
		}
	if (nrandom(3) == 1) {
		for (i = 0;; ++i)
			if (comphand[i] && comphand[i] != CARDS) {
				max = i;
				break;
			}
		while (++i < RANKS) 
			if (comphand[i] != CARDS &&
			    comphand[i] > comphand[max])
				max = i;
		return(max);
	} 
	if (nrandom(1024) == 0723) {
		for (i = 0; i < RANKS; ++i)
			if (userhand[i] && comphand[i])
				return(i);
	}
	for (;;) {
		for (i = 0; i < RANKS; ++i)
			if (comphand[i] && comphand[i] != CARDS &&
			    !asked[i])
				return(i);
		for (i = 0; i < RANKS; ++i)
			asked[i] = 0;
	}
	/* NOTREACHED */
}

drawcard(player, hand)
	int player;
	int *hand;
{
	int card;

	while (deck[card = nrandom(RANKS)] == 0);
	++hand[card];
	--deck[card];
	if (player == USER || hand[card] == CARDS) {
		printplayer(player);
		(void)printf("drew %s", cards[card]);
		if (hand[card] == CARDS) {
			(void)printf(" and made a book of %s's!\n",
			     cards[card]);
			chkwinner(player, hand);
		} else
			(void)printf(".\n");
	}
	return(card);
}

gofish(askedfor, player, hand)
	int askedfor, player;
	int *hand;
{
	printplayer(OTHER(player));
	(void)printf("say \"GO FISH!\"\n");
	if (askedfor == drawcard(player, hand)) {
		printplayer(player);
		(void)printf("drew the guess!\n");
		printplayer(player);
		(void)printf("get to ask again!\n");
		return(1);
	}
	return(0);
}

goodmove(player, move, hand, opphand)
	int player, move;
	int *hand, *opphand;
{
	printplayer(OTHER(player));
	(void)printf("have %d %s%s.\n",
	    opphand[move], cards[move], opphand[move] == 1 ? "": "'s");

	hand[move] += opphand[move];
	opphand[move] = 0;

	if (hand[move] == CARDS) {
		printplayer(player);
		(void)printf("made a book of %s's!\n", cards[move]);
		chkwinner(player, hand);
	}

	chkwinner(OTHER(player), opphand);

	printplayer(player);
	(void)printf("get another guess!\n");
}

chkwinner(player, hand)
	int player;
	register int *hand;
{
	register int cb, i, ub;

	for (i = 0; i < RANKS; ++i)
		if (hand[i] > 0 && hand[i] < CARDS)
			return;
	printplayer(player);
	(void)printf("don't have any more cards!\n");
	(void)printf("My books:");
	cb = countbooks(comphand);
	(void)printf("Your books:");
	ub = countbooks(userhand);
	(void)printf("\nI have %d, you have %d.\n", cb, ub);
	if (ub > cb) {
		(void)printf("\nYou win!!!\n");
		if (nrandom(1024) == 0723)
			(void)printf("Cheater, cheater, pumpkin eater!\n");
	} else if (cb > ub) {
		(void)printf("\nI win!!!\n");
		if (nrandom(1024) == 0723)
			(void)printf("Hah!  Stupid peasant!\n");
	} else
		(void)printf("\nTie!\n");
	exit(0);
}

printplayer(player)
	int player;
{
	switch (player) {
	case COMPUTER:
		(void)printf("I ");
		break;
	case USER:
		(void)printf("You ");
		break;
	}
}

printhand(hand)
	int *hand;
{
	register int book, i, j;

	for (book = i = 0; i < RANKS; i++)
		if (hand[i] < CARDS)
			for (j = hand[i]; --j >= 0;) 
				PRC(i);
		else
			++book;
	if (book) {
		(void)printf(" + Book%s of", book > 1 ? "s" : "");
		for (i = 0; i < RANKS; i++)
			if (hand[i] == CARDS)
				PRC(i);
	}
	(void)putchar('\n');
}

countcards(hand)
	register int *hand;
{
	register int i, count;

	for (count = i = 0; i < RANKS; i++)
		count += *hand++;
	return(count);
}

countbooks(hand)
	int *hand;
{
	int i, count;

	for (count = i = 0; i < RANKS; i++)
		if (hand[i] == CARDS) {
			++count;
			PRC(i);
		}
	if (!count)
		(void)printf(" none");
	(void)putchar('\n');
	return(count);
}

init()
{
	register int i, rank;

	for (i = 0; i < RANKS; ++i)
		deck[i] = CARDS;
	for (i = 0; i < HANDSIZE; ++i) {
		while (!deck[rank = nrandom(RANKS)]);
		++userhand[rank];
		--deck[rank];
	}
	for (i = 0; i < HANDSIZE; ++i) {
		while (!deck[rank = nrandom(RANKS)]);
		++comphand[rank];
		--deck[rank];
	}
}

nrandom(n)
	int n;
{
	long random();

	return((int)random() % n);
}

instructions()
{
	int input;
	char buf[1024];

	(void)printf("Would you like instructions (y or n)? ");
	input = getchar();
	while (getchar() != '\n');
	if (input != 'y')
		return;

	(void)sprintf(buf, "%s %s", _PATH_MORE, _PATH_INSTR);
	(void)system(buf);
	(void)printf("Hit return to continue...\n");
	while ((input = getchar()) != EOF && input != '\n');
}

usage()
{
	(void)fprintf(stderr, "usage: fish [-p]\n");
	exit(1);
}
Commit	Line	Data
495d41aa KB	1	/*-
	2	* Copyright (c) 1990 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Muffy Barkocy.
	7	*
	8	* %sccs.include.redist.c%
e0bbfbf9 DF	9	*/
	10
	11	#ifndef lint
	12	char copyright[] =
495d41aa	13	"@(#) Copyright (c) 1990 The Regents of the University of California.\n\
e0bbfbf9	14	All rights reserved.\n";
495d41aa	15	#endif /* not lint */
e0bbfbf9 DF	16
e0bbfbf9 DF	17	#ifndef lint
adccc0d2	18	static char sccsid[] = "@(#)fish.c 5.4 (Berkeley) %G%";
495d41aa KB	19	#endif /* not lint */
	20
	21	#include <sys/types.h>
	22	#include <sys/errno.h>
	23	#include <fcntl.h>
	24	#include <stdio.h>
	25	#include <stdlib.h>
	26	#include <string.h>
	27	#include "pathnames.h"
	28
	29	#define RANKS 13
	30	#define HANDSIZE 7
	31	#define CARDS 4
	32
	33	#define USER 1
	34	#define COMPUTER 0
	35	#define OTHER(a) (1 - (a))
	36
	37	char *cards[] = {
	38	"A", "2", "3", "4", "5", "6", "7",
	39	"8", "9", "10", "J", "Q", "K", NULL,
	40	};
	41	#define PRC(card) (void)printf(" %s", cards[card])
	42
	43	int promode;
	44	int asked[RANKS], comphand[RANKS], deck[RANKS];
	45	int userasked[RANKS], userhand[RANKS];
	46
	47	main(argc, argv)
	48	int argc;
	49	char **argv;
	50	{
	51	int ch, move;
	52
	53	while ((ch = getopt(argc, argv, "p")) != EOF)
	54	switch(ch) {
	55	case 'p':
	56	promode = 1;
	57	break;
	58	case '?':
	59	default:
	60	(void)fprintf(stderr, "usage: fish [-p]\n");
	61	exit(1);
32029695 KM	62	}
32029695 KM	63
495d41aa KB	64	srandom(time((time_t *)NULL));
	65	instructions();
	66	init();
32029695	67
495d41aa KB	68	if (nrandom(2) == 1) {
	69	printplayer(COMPUTER);
	70	(void)printf("get to start.\n");
	71	goto istart;
32029695	72	}
495d41aa KB	73	printplayer(USER);
	74	(void)printf("get to start.\n");
	75
	76	for (;;) {
	77	move = usermove();
	78	if (!comphand[move]) {
	79	if (gofish(move, USER, userhand))
	80	continue;
	81	} else {
	82	goodmove(USER, move, userhand, comphand);
	83	continue;
32029695	84	}
32029695	85
495d41aa KB	86	istart: for (;;) {
	87	move = compmove();
	88	if (!userhand[move]) {
	89	if (!gofish(move, COMPUTER, comphand))
	90	break;
	91	} else
	92	goodmove(COMPUTER, move, comphand, userhand);
32029695 KM	93	}
32029695 KM	94	}
495d41aa KB	95	/* NOTREACHED */
	96	}
	97
	98	usermove()
	99	{
	100	register int n;
	101	register char **p;
	102	char buf[256];
	103
adccc0d2	104	(void)printf("\nYour hand is:");
495d41aa KB	105	printhand(userhand);
	106
	107	for (;;) {
	108	(void)printf("You ask me for: ");
	109	(void)fflush(stdout);
	110	if (fgets(buf, BUFSIZ, stdin) == NULL)
	111	exit(0);
	112	if (buf[0] == '\0')
	113	continue;
	114	if (buf[0] == '\n') {
	115	(void)printf("%d cards in my hand, %d in the pool.\n",
	116	countcards(comphand), countcards(deck));
	117	(void)printf("My books:");
	118	(void)countbooks(comphand);
	119	continue;
32029695	120	}
495d41aa KB	121	buf[strlen(buf) - 1] = '\0';
	122	if (!strcasecmp(buf, "p") && !promode) {
	123	promode = 1;
	124	(void)printf("Entering pro mode.\n");
	125	continue;
32029695	126	}
495d41aa KB	127	if (!strcasecmp(buf, "quit"))
	128	exit(0);
	129	for (p = cards; *p; ++p)
	130	if (!strcasecmp(*p, buf))
	131	break;
	132	if (!*p) {
	133	(void)printf("I don't understand!\n");
32029695	134	continue;
32029695	135	}
495d41aa KB	136	n = p - cards;
	137	if (userhand[n]) {
	138	userasked[n] = 1;
	139	return(n);
32029695	140	}
495d41aa KB	141	if (nrandom(3) == 1)
	142	(void)printf("You don't have any of those!\n");
	143	else
	144	(void)printf("You don't have any %s's!\n", cards[n]);
	145	if (nrandom(4) == 1)
	146	(void)printf("No cheating!\n");
	147	(void)printf("Guess again.\n");
32029695	148	}
495d41aa KB	149	/* NOTREACHED */
	150	}
	151
	152	compmove()
	153	{
	154	static int lmove;
	155
	156	if (promode)
	157	lmove = promove();
	158	else {
	159	do {
	160	lmove = (lmove + 1) % RANKS;
	161	} while (!comphand[lmove] \|\| comphand[lmove] == CARDS);
	162	}
	163	asked[lmove] = 1;
32029695	164
495d41aa KB	165	(void)printf("I ask you for: %s.\n", cards[lmove]);
	166	return(lmove);
	167	}
32029695	168
495d41aa KB	169	promove()
	170	{
	171	register int i, max;
32029695	172
495d41aa KB	173	for (i = 0; i < RANKS; ++i)
	174	if (userasked[i] &&
	175	comphand[i] > 0 && comphand[i] < CARDS) {
	176	userasked[i] = 0;
	177	return(i);
32029695	178	}
495d41aa KB	179	if (nrandom(3) == 1) {
	180	for (i = 0;; ++i)
	181	if (comphand[i] && comphand[i] != CARDS) {
	182	max = i;
	183	break;
	184	}
	185	while (++i < RANKS)
	186	if (comphand[i] != CARDS &&
	187	comphand[i] > comphand[max])
	188	max = i;
	189	return(max);
	190	}
	191	if (nrandom(1024) == 0723) {
	192	for (i = 0; i < RANKS; ++i)
	193	if (userhand[i] && comphand[i])
	194	return(i);
32029695	195	}
495d41aa KB	196	for (;;) {
	197	for (i = 0; i < RANKS; ++i)
	198	if (comphand[i] && comphand[i] != CARDS &&
	199	!asked[i])
	200	return(i);
	201	for (i = 0; i < RANKS; ++i)
	202	asked[i] = 0;
32029695	203	}
495d41aa KB	204	/* NOTREACHED */
	205	}
	206
	207	drawcard(player, hand)
	208	int player;
	209	int *hand;
	210	{
	211	int card;
	212
	213	while (deck[card = nrandom(RANKS)] == 0);
	214	++hand[card];
	215	--deck[card];
	216	if (player == USER \|\| hand[card] == CARDS) {
	217	printplayer(player);
	218	(void)printf("drew %s", cards[card]);
	219	if (hand[card] == CARDS) {
	220	(void)printf(" and made a book of %s's!\n",
	221	cards[card]);
	222	chkwinner(player, hand);
	223	} else
	224	(void)printf(".\n");
32029695	225	}
495d41aa KB	226	return(card);
	227	}
	228
	229	gofish(askedfor, player, hand)
	230	int askedfor, player;
	231	int *hand;
	232	{
	233	printplayer(OTHER(player));
	234	(void)printf("say \"GO FISH!\"\n");
	235	if (askedfor == drawcard(player, hand)) {
	236	printplayer(player);
	237	(void)printf("drew the guess!\n");
	238	printplayer(player);
	239	(void)printf("get to ask again!\n");
32029695	240	return(1);
32029695	241	}
495d41aa KB	242	return(0);
	243	}
	244
	245	goodmove(player, move, hand, opphand)
	246	int player, move;
	247	int hand, opphand;
	248	{
	249	printplayer(OTHER(player));
	250	(void)printf("have %d %s%s.\n",
	251	opphand[move], cards[move], opphand[move] == 1 ? "": "'s");
	252
	253	hand[move] += opphand[move];
	254	opphand[move] = 0;
	255
	256	if (hand[move] == CARDS) {
	257	printplayer(player);
	258	(void)printf("made a book of %s's!\n", cards[move]);
	259	chkwinner(player, hand);
32029695 KM	260	}
32029695 KM	261
495d41aa KB	262	chkwinner(OTHER(player), opphand);
	263
	264	printplayer(player);
	265	(void)printf("get another guess!\n");
	266	}
	267
	268	chkwinner(player, hand)
	269	int player;
	270	register int *hand;
	271	{
	272	register int cb, i, ub;
	273
	274	for (i = 0; i < RANKS; ++i)
	275	if (hand[i] > 0 && hand[i] < CARDS)
	276	return;
	277	printplayer(player);
	278	(void)printf("don't have any more cards!\n");
	279	(void)printf("My books:");
	280	cb = countbooks(comphand);
	281	(void)printf("Your books:");
	282	ub = countbooks(userhand);
	283	(void)printf("\nI have %d, you have %d.\n", cb, ub);
	284	if (ub > cb) {
	285	(void)printf("\nYou win!!!\n");
	286	if (nrandom(1024) == 0723)
	287	(void)printf("Cheater, cheater, pumpkin eater!\n");
	288	} else if (cb > ub) {
	289	(void)printf("\nI win!!!\n");
	290	if (nrandom(1024) == 0723)
	291	(void)printf("Hah! Stupid peasant!\n");
	292	} else
	293	(void)printf("\nTie!\n");
32029695	294	exit(0);
495d41aa KB	295	}
	296
	297	printplayer(player)
	298	int player;
	299	{
	300	switch (player) {
	301	case COMPUTER:
	302	(void)printf("I ");
	303	break;
	304	case USER:
	305	(void)printf("You ");
	306	break;
32029695	307	}
495d41aa KB	308	}
	309
	310	printhand(hand)
	311	int *hand;
	312	{
	313	register int book, i, j;
	314
	315	for (book = i = 0; i < RANKS; i++)
	316	if (hand[i] < CARDS)
	317	for (j = hand[i]; --j >= 0;)
	318	PRC(i);
	319	else
	320	++book;
	321	if (book) {
	322	(void)printf(" + Book%s of", book > 1 ? "s" : "");
	323	for (i = 0; i < RANKS; i++)
	324	if (hand[i] == CARDS)
	325	PRC(i);
32029695	326	}
495d41aa KB	327	(void)putchar('\n');
	328	}
	329
	330	countcards(hand)
	331	register int *hand;
	332	{
	333	register int i, count;
	334
	335	for (count = i = 0; i < RANKS; i++)
	336	count += *hand++;
	337	return(count);
	338	}
	339
	340	countbooks(hand)
	341	int *hand;
	342	{
	343	int i, count;
	344
	345	for (count = i = 0; i < RANKS; i++)
	346	if (hand[i] == CARDS) {
	347	++count;
	348	PRC(i);
32029695	349	}
495d41aa KB	350	if (!count)
	351	(void)printf(" none");
	352	(void)putchar('\n');
	353	return(count);
	354	}
	355
	356	init()
	357	{
	358	register int i, rank;
	359
	360	for (i = 0; i < RANKS; ++i)
	361	deck[i] = CARDS;
	362	for (i = 0; i < HANDSIZE; ++i) {
	363	while (!deck[rank = nrandom(RANKS)]);
	364	++userhand[rank];
	365	--deck[rank];
32029695	366	}
495d41aa KB	367	for (i = 0; i < HANDSIZE; ++i) {
	368	while (!deck[rank = nrandom(RANKS)]);
	369	++comphand[rank];
	370	--deck[rank];
	371	}
	372	}
	373
	374	nrandom(n)
	375	int n;
	376	{
	377	long random();
	378
	379	return((int)random() % n);
	380	}
	381
	382	instructions()
	383	{
	384	int input;
	385	char buf[1024];
	386
	387	(void)printf("Would you like instructions (y or n)? ");
	388	input = getchar();
	389	while (getchar() != '\n');
	390	if (input != 'y')
	391	return;
	392
	393	(void)sprintf(buf, "%s %s", _PATH_MORE, _PATH_INSTR);
	394	(void)system(buf);
	395	(void)printf("Hit return to continue...\n");
	396	while ((input = getchar()) != EOF && input != '\n');
	397	}
	398
	399	usage()
	400	{
	401	(void)fprintf(stderr, "usage: fish [-p]\n");
	402	exit(1);
	403	}