Add DragonFly 1.3.2.
[dragonfly.git] / games / fish / fish.c
CommitLineData
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1/*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Muffy Barkocy.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * $FreeBSD: src/games/fish/fish.c,v 1.9 1999/12/10 16:21:50 billf Exp $
851dc90d 37 * $DragonFly: src/games/fish/fish.c,v 1.3 2003/11/12 14:53:53 eirikn Exp $
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38 *
39 * @(#) Copyright (c) 1990, 1993 The Regents of the University of California. All rights reserved.
40 * @(#)fish.c 8.1 (Berkeley) 5/31/93
41 * $FreeBSD: src/games/fish/fish.c,v 1.9 1999/12/10 16:21:50 billf Exp $
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42 */
43
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44#include <sys/types.h>
45#include <sys/errno.h>
46#include <fcntl.h>
47#include <stdio.h>
48#include <stdlib.h>
49#include <string.h>
50#include <unistd.h>
51#include "pathnames.h"
52
53#define RANKS 13
54#define HANDSIZE 7
55#define CARDS 4
56
57#define USER 1
58#define COMPUTER 0
59#define OTHER(a) (1 - (a))
60
61char *cards[] = {
62 "A", "2", "3", "4", "5", "6", "7",
63 "8", "9", "10", "J", "Q", "K", NULL,
64};
65#define PRC(card) (void)printf(" %s", cards[card])
66
67int promode;
68int asked[RANKS], comphand[RANKS], deck[RANKS];
69int userasked[RANKS], userhand[RANKS];
70
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71void chkwinner (int player, int *hand);
72int compmove (void);
73int countbooks (int *hand);
74int countcards (int *hand);
75int drawcard (int player, int *hand);
76int gofish (int askedfor, int player, int *hand);
77void goodmove (int player, int move, int *hand, int *opphand);
78void init (void);
79void instructions (void);
80int nrandom (int n);
81void printhand (int *hand);
82void printplayer (int player);
83int promove (void);
84void usage (void);
85int usermove (void);
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86
87int
88main(argc, argv)
89 int argc;
90 char **argv;
91{
92 int ch, move;
93
94 while ((ch = getopt(argc, argv, "p")) != -1)
95 switch(ch) {
96 case 'p':
97 promode = 1;
98 break;
99 case '?':
100 default:
101 (void)fprintf(stderr, "usage: fish [-p]\n");
102 exit(1);
103 }
104
105 srandomdev();
106 instructions();
107 init();
108
109 if (nrandom(2) == 1) {
110 printplayer(COMPUTER);
111 (void)printf("get to start.\n");
112 goto istart;
113 }
114 printplayer(USER);
115 (void)printf("get to start.\n");
116
117 for (;;) {
118 move = usermove();
119 if (!comphand[move]) {
120 if (gofish(move, USER, userhand))
121 continue;
122 } else {
123 goodmove(USER, move, userhand, comphand);
124 continue;
125 }
126
127istart: for (;;) {
128 move = compmove();
129 if (!userhand[move]) {
130 if (!gofish(move, COMPUTER, comphand))
131 break;
132 } else
133 goodmove(COMPUTER, move, comphand, userhand);
134 }
135 }
136 /* NOTREACHED */
137 return(EXIT_FAILURE);
138}
139
140int
141usermove()
142{
143 int n;
144 char **p;
145 char buf[256];
146
147 (void)printf("\nYour hand is:");
148 printhand(userhand);
149
150 for (;;) {
151 (void)printf("You ask me for: ");
152 (void)fflush(stdout);
153 if (fgets(buf, sizeof(buf), stdin) == NULL)
154 exit(0);
155 if (buf[0] == '\0')
156 continue;
157 if (buf[0] == '\n') {
158 (void)printf("%d cards in my hand, %d in the pool.\n",
159 countcards(comphand), countcards(deck));
160 (void)printf("My books:");
161 (void)countbooks(comphand);
162 continue;
163 }
164 buf[strlen(buf) - 1] = '\0';
165 if (!strcasecmp(buf, "p") && !promode) {
166 promode = 1;
167 (void)printf("Entering pro mode.\n");
168 continue;
169 }
170 if (!strcasecmp(buf, "quit"))
171 exit(0);
172 for (p = cards; *p; ++p)
173 if (!strcasecmp(*p, buf))
174 break;
175 if (!*p) {
176 (void)printf("I don't understand!\n");
177 continue;
178 }
179 n = p - cards;
180 if (userhand[n]) {
181 userasked[n] = 1;
182 return(n);
183 }
184 if (nrandom(3) == 1)
185 (void)printf("You don't have any of those!\n");
186 else
187 (void)printf("You don't have any %s's!\n", cards[n]);
188 if (nrandom(4) == 1)
189 (void)printf("No cheating!\n");
190 (void)printf("Guess again.\n");
191 }
192 /* NOTREACHED */
193}
194
195int
196compmove()
197{
198 static int lmove;
199
200 if (promode)
201 lmove = promove();
202 else {
203 do {
204 lmove = (lmove + 1) % RANKS;
205 } while (!comphand[lmove] || comphand[lmove] == CARDS);
206 }
207 asked[lmove] = 1;
208
209 (void)printf("I ask you for: %s.\n", cards[lmove]);
210 return(lmove);
211}
212
213int
214promove()
215{
216 int i, max;
217
218 for (i = 0; i < RANKS; ++i)
219 if (userasked[i] &&
220 comphand[i] > 0 && comphand[i] < CARDS) {
221 userasked[i] = 0;
222 return(i);
223 }
224 if (nrandom(3) == 1) {
225 for (i = 0;; ++i)
226 if (comphand[i] && comphand[i] != CARDS) {
227 max = i;
228 break;
229 }
230 while (++i < RANKS)
231 if (comphand[i] != CARDS &&
232 comphand[i] > comphand[max])
233 max = i;
234 return(max);
235 }
236 if (nrandom(1024) == 0723) {
237 for (i = 0; i < RANKS; ++i)
238 if (userhand[i] && comphand[i])
239 return(i);
240 }
241 for (;;) {
242 for (i = 0; i < RANKS; ++i)
243 if (comphand[i] && comphand[i] != CARDS &&
244 !asked[i])
245 return(i);
246 for (i = 0; i < RANKS; ++i)
247 asked[i] = 0;
248 }
249 /* NOTREACHED */
250}
251
252int
253drawcard(player, hand)
254 int player;
255 int *hand;
256{
257 int card;
258
259 while (deck[card = nrandom(RANKS)] == 0);
260 ++hand[card];
261 --deck[card];
262 if (player == USER || hand[card] == CARDS) {
263 printplayer(player);
264 (void)printf("drew %s", cards[card]);
265 if (hand[card] == CARDS) {
266 (void)printf(" and made a book of %s's!\n",
267 cards[card]);
268 chkwinner(player, hand);
269 } else
270 (void)printf(".\n");
271 }
272 return(card);
273}
274
275int
276gofish(askedfor, player, hand)
277 int askedfor, player;
278 int *hand;
279{
280 printplayer(OTHER(player));
281 (void)printf("say \"GO FISH!\"\n");
282 if (askedfor == drawcard(player, hand)) {
283 printplayer(player);
284 (void)printf("drew the guess!\n");
285 printplayer(player);
286 (void)printf("get to ask again!\n");
287 return(1);
288 }
289 return(0);
290}
291
292void
293goodmove(player, move, hand, opphand)
294 int player, move;
295 int *hand, *opphand;
296{
297 printplayer(OTHER(player));
298 (void)printf("have %d %s%s.\n",
299 opphand[move], cards[move], opphand[move] == 1 ? "": "'s");
300
301 hand[move] += opphand[move];
302 opphand[move] = 0;
303
304 if (hand[move] == CARDS) {
305 printplayer(player);
306 (void)printf("made a book of %s's!\n", cards[move]);
307 chkwinner(player, hand);
308 }
309
310 chkwinner(OTHER(player), opphand);
311
312 printplayer(player);
313 (void)printf("get another guess!\n");
314}
315
316void
317chkwinner(player, hand)
318 int player;
319 int *hand;
320{
321 int cb, i, ub;
322
323 for (i = 0; i < RANKS; ++i)
324 if (hand[i] > 0 && hand[i] < CARDS)
325 return;
326 printplayer(player);
327 (void)printf("don't have any more cards!\n");
328 (void)printf("My books:");
329 cb = countbooks(comphand);
330 (void)printf("Your books:");
331 ub = countbooks(userhand);
332 (void)printf("\nI have %d, you have %d.\n", cb, ub);
333 if (ub > cb) {
334 (void)printf("\nYou win!!!\n");
335 if (nrandom(1024) == 0723)
336 (void)printf("Cheater, cheater, pumpkin eater!\n");
337 } else if (cb > ub) {
338 (void)printf("\nI win!!!\n");
339 if (nrandom(1024) == 0723)
340 (void)printf("Hah! Stupid peasant!\n");
341 } else
342 (void)printf("\nTie!\n");
343 exit(0);
344}
345
346void
347printplayer(player)
348 int player;
349{
350 switch (player) {
351 case COMPUTER:
352 (void)printf("I ");
353 break;
354 case USER:
355 (void)printf("You ");
356 break;
357 }
358}
359
360void
361printhand(hand)
362 int *hand;
363{
364 int book, i, j;
365
366 for (book = i = 0; i < RANKS; i++)
367 if (hand[i] < CARDS)
368 for (j = hand[i]; --j >= 0;)
369 PRC(i);
370 else
371 ++book;
372 if (book) {
373 (void)printf(" + Book%s of", book > 1 ? "s" : "");
374 for (i = 0; i < RANKS; i++)
375 if (hand[i] == CARDS)
376 PRC(i);
377 }
378 (void)putchar('\n');
379}
380
381int
382countcards(hand)
383 int *hand;
384{
385 int i, count;
386
387 for (count = i = 0; i < RANKS; i++)
388 count += *hand++;
389 return(count);
390}
391
392int
393countbooks(hand)
394 int *hand;
395{
396 int i, count;
397
398 for (count = i = 0; i < RANKS; i++)
399 if (hand[i] == CARDS) {
400 ++count;
401 PRC(i);
402 }
403 if (!count)
404 (void)printf(" none");
405 (void)putchar('\n');
406 return(count);
407}
408
409void
410init()
411{
412 int i, rank;
413
414 for (i = 0; i < RANKS; ++i)
415 deck[i] = CARDS;
416 for (i = 0; i < HANDSIZE; ++i) {
417 while (!deck[rank = nrandom(RANKS)]);
418 ++userhand[rank];
419 --deck[rank];
420 }
421 for (i = 0; i < HANDSIZE; ++i) {
422 while (!deck[rank = nrandom(RANKS)]);
423 ++comphand[rank];
424 --deck[rank];
425 }
426}
427
428int
429nrandom(n)
430 int n;
431{
432
433 return((int)random() % n);
434}
435
436void
437instructions()
438{
439 int input;
440 char buf[1024];
441
442 (void)printf("Would you like instructions (y or n)? ");
443 input = getchar();
444 while (getchar() != '\n');
445 if (input != 'y')
446 return;
447
448 (void)sprintf(buf, "%s %s", _PATH_MORE, _PATH_INSTR);
449 (void)system(buf);
450 (void)printf("Hit return to continue...\n");
451 while ((input = getchar()) != EOF && input != '\n');
452}
453
454void
455usage()
456{
457 (void)fprintf(stderr, "usage: fish [-p]\n");
458 exit(1);
459}