games: Massive style(9) cleanup commit. Reduces differences to NetBSD.
[dragonfly.git] / games / fish / fish.c
CommitLineData
984263bc
MD
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.
6693db17 16 * 3. Neither the name of the University nor the names of its contributors
984263bc
MD
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD: src/games/fish/fish.c,v 1.9 1999/12/10 16:21:50 billf Exp $
807005d4 33 * $DragonFly: src/games/fish/fish.c,v 1.4 2005/07/31 20:40:26 swildner Exp $
1de703da
MD
34 *
35 * @(#) Copyright (c) 1990, 1993 The Regents of the University of California. All rights reserved.
36 * @(#)fish.c 8.1 (Berkeley) 5/31/93
984263bc
MD
37 */
38
984263bc 39#include <sys/types.h>
6693db17 40#include <errno.h>
984263bc
MD
41#include <fcntl.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45#include <unistd.h>
46#include "pathnames.h"
47
48#define RANKS 13
49#define HANDSIZE 7
50#define CARDS 4
51
52#define USER 1
53#define COMPUTER 0
54#define OTHER(a) (1 - (a))
55
807005d4 56const char *cards[] = {
984263bc
MD
57 "A", "2", "3", "4", "5", "6", "7",
58 "8", "9", "10", "J", "Q", "K", NULL,
59};
807005d4 60#define PRC(card) printf(" %s", cards[card])
984263bc
MD
61
62int promode;
63int asked[RANKS], comphand[RANKS], deck[RANKS];
64int userasked[RANKS], userhand[RANKS];
65
6693db17
SW
66static void chkwinner(int, int *);
67static int compmove(void);
68static int countbooks(int *);
69static int countcards(int *);
70static int drawcard(int, int *);
71static int gofish(int, int, int *);
72static void goodmove(int, int, int *, int *);
73static void init(void);
74static void instructions(void);
75static int nrandom(int);
76static void printhand(int *);
77static void printplayer(int);
78static int promove(void);
79static void usage(void);
80static int usermove(void);
984263bc
MD
81
82int
807005d4 83main(int argc, char **argv)
984263bc
MD
84{
85 int ch, move;
86
87 while ((ch = getopt(argc, argv, "p")) != -1)
88 switch(ch) {
89 case 'p':
90 promode = 1;
91 break;
92 case '?':
93 default:
807005d4 94 usage();
984263bc
MD
95 }
96
97 srandomdev();
98 instructions();
99 init();
100
101 if (nrandom(2) == 1) {
102 printplayer(COMPUTER);
807005d4 103 printf("get to start.\n");
984263bc
MD
104 goto istart;
105 }
106 printplayer(USER);
807005d4 107 printf("get to start.\n");
984263bc
MD
108
109 for (;;) {
110 move = usermove();
111 if (!comphand[move]) {
112 if (gofish(move, USER, userhand))
113 continue;
114 } else {
115 goodmove(USER, move, userhand, comphand);
116 continue;
117 }
118
119istart: for (;;) {
120 move = compmove();
121 if (!userhand[move]) {
122 if (!gofish(move, COMPUTER, comphand))
123 break;
124 } else
125 goodmove(COMPUTER, move, comphand, userhand);
126 }
127 }
128 /* NOTREACHED */
6693db17 129 return (EXIT_FAILURE);
984263bc
MD
130}
131
807005d4
SW
132static int
133usermove(void)
984263bc
MD
134{
135 int n;
807005d4 136 const char **p;
984263bc
MD
137 char buf[256];
138
807005d4 139 printf("\nYour hand is:");
984263bc
MD
140 printhand(userhand);
141
142 for (;;) {
807005d4
SW
143 printf("You ask me for: ");
144 fflush(stdout);
984263bc
MD
145 if (fgets(buf, sizeof(buf), stdin) == NULL)
146 exit(0);
147 if (buf[0] == '\0')
148 continue;
149 if (buf[0] == '\n') {
807005d4 150 printf("%d cards in my hand, %d in the pool.\n",
984263bc 151 countcards(comphand), countcards(deck));
807005d4
SW
152 printf("My books:");
153 countbooks(comphand);
984263bc
MD
154 continue;
155 }
156 buf[strlen(buf) - 1] = '\0';
157 if (!strcasecmp(buf, "p") && !promode) {
158 promode = 1;
807005d4 159 printf("Entering pro mode.\n");
984263bc
MD
160 continue;
161 }
162 if (!strcasecmp(buf, "quit"))
163 exit(0);
164 for (p = cards; *p; ++p)
165 if (!strcasecmp(*p, buf))
166 break;
167 if (!*p) {
807005d4 168 printf("I don't understand!\n");
984263bc
MD
169 continue;
170 }
171 n = p - cards;
172 if (userhand[n]) {
173 userasked[n] = 1;
174 return(n);
175 }
176 if (nrandom(3) == 1)
807005d4 177 printf("You don't have any of those!\n");
984263bc 178 else
807005d4 179 printf("You don't have any %s's!\n", cards[n]);
984263bc 180 if (nrandom(4) == 1)
807005d4
SW
181 printf("No cheating!\n");
182 printf("Guess again.\n");
984263bc
MD
183 }
184 /* NOTREACHED */
185}
186
807005d4
SW
187static int
188compmove(void)
984263bc
MD
189{
190 static int lmove;
191
192 if (promode)
193 lmove = promove();
194 else {
195 do {
196 lmove = (lmove + 1) % RANKS;
197 } while (!comphand[lmove] || comphand[lmove] == CARDS);
198 }
199 asked[lmove] = 1;
200
807005d4 201 printf("I ask you for: %s.\n", cards[lmove]);
984263bc
MD
202 return(lmove);
203}
204
807005d4
SW
205static int
206promove(void)
984263bc
MD
207{
208 int i, max;
209
210 for (i = 0; i < RANKS; ++i)
807005d4 211 if (userasked[i] && comphand[i] > 0 && comphand[i] < CARDS) {
984263bc
MD
212 userasked[i] = 0;
213 return(i);
214 }
215 if (nrandom(3) == 1) {
216 for (i = 0;; ++i)
217 if (comphand[i] && comphand[i] != CARDS) {
218 max = i;
219 break;
220 }
221 while (++i < RANKS)
807005d4 222 if (comphand[i] != CARDS && comphand[i] > comphand[max])
984263bc
MD
223 max = i;
224 return(max);
225 }
226 if (nrandom(1024) == 0723) {
227 for (i = 0; i < RANKS; ++i)
228 if (userhand[i] && comphand[i])
229 return(i);
230 }
231 for (;;) {
232 for (i = 0; i < RANKS; ++i)
807005d4 233 if (comphand[i] && comphand[i] != CARDS && !asked[i])
984263bc
MD
234 return(i);
235 for (i = 0; i < RANKS; ++i)
236 asked[i] = 0;
237 }
238 /* NOTREACHED */
239}
240
807005d4
SW
241static int
242drawcard(int player, int *hand)
984263bc
MD
243{
244 int card;
245
6693db17
SW
246 while (deck[card = nrandom(RANKS)] == 0)
247 ; /* nothing */
984263bc
MD
248 ++hand[card];
249 --deck[card];
250 if (player == USER || hand[card] == CARDS) {
251 printplayer(player);
807005d4 252 printf("drew %s", cards[card]);
984263bc 253 if (hand[card] == CARDS) {
807005d4 254 printf(" and made a book of %s's!\n", cards[card]);
984263bc
MD
255 chkwinner(player, hand);
256 } else
807005d4 257 printf(".\n");
984263bc
MD
258 }
259 return(card);
260}
261
807005d4
SW
262static int
263gofish(int askedfor, int player, int *hand)
984263bc
MD
264{
265 printplayer(OTHER(player));
807005d4 266 printf("say \"GO FISH!\"\n");
984263bc
MD
267 if (askedfor == drawcard(player, hand)) {
268 printplayer(player);
807005d4 269 printf("drew the guess!\n");
984263bc 270 printplayer(player);
807005d4 271 printf("get to ask again!\n");
984263bc
MD
272 return(1);
273 }
274 return(0);
275}
276
807005d4
SW
277static void
278goodmove(int player, int move, int *hand, int *opphand)
984263bc
MD
279{
280 printplayer(OTHER(player));
807005d4 281 printf("have %d %s%s.\n",
984263bc
MD
282 opphand[move], cards[move], opphand[move] == 1 ? "": "'s");
283
284 hand[move] += opphand[move];
285 opphand[move] = 0;
286
287 if (hand[move] == CARDS) {
288 printplayer(player);
807005d4 289 printf("made a book of %s's!\n", cards[move]);
984263bc
MD
290 chkwinner(player, hand);
291 }
292
293 chkwinner(OTHER(player), opphand);
294
295 printplayer(player);
807005d4 296 printf("get another guess!\n");
984263bc
MD
297}
298
807005d4
SW
299static void
300chkwinner(int player, int *hand)
984263bc
MD
301{
302 int cb, i, ub;
303
304 for (i = 0; i < RANKS; ++i)
305 if (hand[i] > 0 && hand[i] < CARDS)
306 return;
307 printplayer(player);
807005d4
SW
308 printf("don't have any more cards!\n");
309 printf("My books:");
984263bc 310 cb = countbooks(comphand);
807005d4 311 printf("Your books:");
984263bc 312 ub = countbooks(userhand);
807005d4 313 printf("\nI have %d, you have %d.\n", cb, ub);
984263bc 314 if (ub > cb) {
807005d4 315 printf("\nYou win!!!\n");
984263bc 316 if (nrandom(1024) == 0723)
807005d4 317 printf("Cheater, cheater, pumpkin eater!\n");
984263bc 318 } else if (cb > ub) {
807005d4 319 printf("\nI win!!!\n");
984263bc 320 if (nrandom(1024) == 0723)
807005d4 321 printf("Hah! Stupid peasant!\n");
984263bc 322 } else
807005d4 323 printf("\nTie!\n");
984263bc
MD
324 exit(0);
325}
326
807005d4
SW
327static void
328printplayer(int player)
984263bc
MD
329{
330 switch (player) {
331 case COMPUTER:
807005d4 332 printf("I ");
984263bc
MD
333 break;
334 case USER:
807005d4 335 printf("You ");
984263bc
MD
336 break;
337 }
338}
339
807005d4
SW
340static void
341printhand(int *hand)
984263bc
MD
342{
343 int book, i, j;
344
345 for (book = i = 0; i < RANKS; i++)
346 if (hand[i] < CARDS)
347 for (j = hand[i]; --j >= 0;)
348 PRC(i);
349 else
350 ++book;
351 if (book) {
807005d4 352 printf(" + Book%s of", book > 1 ? "s" : "");
984263bc
MD
353 for (i = 0; i < RANKS; i++)
354 if (hand[i] == CARDS)
355 PRC(i);
356 }
807005d4 357 putchar('\n');
984263bc
MD
358}
359
807005d4
SW
360static int
361countcards(int *hand)
984263bc
MD
362{
363 int i, count;
364
365 for (count = i = 0; i < RANKS; i++)
366 count += *hand++;
367 return(count);
368}
369
807005d4
SW
370static int
371countbooks(int *hand)
984263bc
MD
372{
373 int i, count;
374
375 for (count = i = 0; i < RANKS; i++)
376 if (hand[i] == CARDS) {
377 ++count;
378 PRC(i);
379 }
380 if (!count)
807005d4
SW
381 printf(" none");
382 putchar('\n');
984263bc
MD
383 return(count);
384}
385
807005d4
SW
386static void
387init(void)
984263bc
MD
388{
389 int i, rank;
390
391 for (i = 0; i < RANKS; ++i)
392 deck[i] = CARDS;
393 for (i = 0; i < HANDSIZE; ++i) {
6693db17
SW
394 while (!deck[rank = nrandom(RANKS)])
395 ; /* nothing */
984263bc
MD
396 ++userhand[rank];
397 --deck[rank];
398 }
399 for (i = 0; i < HANDSIZE; ++i) {
6693db17
SW
400 while (!deck[rank = nrandom(RANKS)])
401 ; /* nothing */
984263bc
MD
402 ++comphand[rank];
403 --deck[rank];
404 }
405}
406
807005d4
SW
407static int
408nrandom(int n)
984263bc
MD
409{
410
411 return((int)random() % n);
412}
413
807005d4
SW
414static void
415instructions(void)
984263bc
MD
416{
417 int input;
418 char buf[1024];
419
807005d4 420 printf("Would you like instructions (y or n)? ");
984263bc
MD
421 input = getchar();
422 while (getchar() != '\n');
423 if (input != 'y')
424 return;
425
807005d4
SW
426 sprintf(buf, "%s %s", _PATH_MORE, _PATH_INSTR);
427 system(buf);
428 printf("Hit return to continue...\n");
984263bc
MD
429 while ((input = getchar()) != EOF && input != '\n');
430}
431
807005d4
SW
432static void
433usage(void)
984263bc 434{
807005d4 435 fprintf(stderr, "usage: fish [-p]\n");
984263bc
MD
436 exit(1);
437}