Commit | Line | Data |
---|---|---|
d16df88a C |
1 | |
2 | static char sccsid[] = " fish.c 4.1 82/10/24 "; | |
3 | ||
4 | # include <stdio.h> | |
5 | ||
6 | /* Through, `my' refers to the program, `your' to the player */ | |
7 | ||
8 | # define CTYPE 13 | |
9 | # define CTSIZ (CTYPE+1) | |
10 | # define DECK 52 | |
11 | # define NOMORE 0 | |
12 | # define DOUBTIT (-1); | |
13 | ||
14 | typedef char HAND[CTSIZ]; | |
15 | ||
16 | /* data structures */ | |
17 | ||
18 | short debug; | |
19 | ||
20 | HAND myhand; | |
21 | HAND yourhand; | |
22 | char deck[DECK]; | |
23 | short nextcd; | |
24 | int proflag; | |
25 | ||
26 | /* utility and output programs */ | |
27 | ||
28 | shuffle(){ | |
29 | /* shuffle the deck, and reset nextcd */ | |
30 | /* uses the random number generator `rand' in the C library */ | |
31 | /* assumes that `srand' has already been called */ | |
32 | ||
33 | register i; | |
34 | ||
35 | for( i=0; i<DECK; ++i ) deck[i] = (i%13)+1; /* seed the deck */ | |
36 | ||
37 | for( i=DECK; i>0; --i ){ /* select the next card at random */ | |
38 | deck[i-1] = choose( deck, i ); | |
39 | } | |
40 | ||
41 | nextcd = 0; | |
42 | } | |
43 | ||
44 | choose( a, n ) char a[]; { | |
45 | /* pick and return one at random from the n choices in a */ | |
46 | /* The last one is moved to replace the one chosen */ | |
47 | register j, t; | |
48 | ||
49 | if( n <= 0 ) error( "null choice" ); | |
50 | ||
51 | j = rand() % n; | |
52 | t = a[j]; | |
53 | a[j] = a[n-1]; | |
54 | return(t); | |
55 | } | |
56 | ||
57 | draw() { | |
58 | if( nextcd >= DECK ) return( NOMORE ); | |
59 | return( deck[nextcd++] ); | |
60 | } | |
61 | ||
62 | error( s ) char *s; { | |
63 | fprintf( stderr, "error: " ); | |
64 | fprintf( stderr, s ); | |
65 | exit( 1 ); | |
66 | } | |
67 | ||
68 | empty( h ) HAND h; { | |
69 | register i; | |
70 | ||
71 | for( i=1; i<=CTYPE; ++i ){ | |
72 | if( h[i] != 0 && h[i] != 4 ) return( 0 ); | |
73 | } | |
74 | return( i ); | |
75 | } | |
76 | ||
77 | mark( cd, hand ) HAND hand; { | |
78 | if( cd != NOMORE ){ | |
79 | ++hand[cd]; | |
80 | if( hand[cd] > 4 ){ | |
81 | error( "mark overflow" ); | |
82 | } | |
83 | } | |
84 | return( cd ); | |
85 | } | |
86 | ||
87 | deal( hand, n ) HAND hand; { | |
88 | while( n-- ){ | |
89 | if( mark( hand, draw() ) == NOMORE ) error( "deck exhausted" ); | |
90 | } | |
91 | } | |
92 | ||
93 | char *cname[] = { | |
94 | "NOMORE!!!", | |
95 | "A", | |
96 | "2", | |
97 | "3", | |
98 | "4", | |
99 | "5", | |
100 | "6", | |
101 | "7", | |
102 | "8", | |
103 | "9", | |
104 | "10", | |
105 | "J", | |
106 | "Q", | |
107 | "K", | |
108 | }; | |
109 | ||
110 | stats(){ | |
111 | register i, ct, b; | |
112 | ||
113 | if( proflag ) printf( "Pro level\n" ); | |
114 | b = ct = 0; | |
115 | ||
116 | for( i=1; i<=CTYPE; ++i ){ | |
117 | if( myhand[i] == 4 ) ++b; | |
118 | else ct += myhand[i]; | |
119 | } | |
120 | ||
121 | if( b ){ | |
122 | printf( "My books: " ); | |
123 | for( i=1; i<=CTYPE; ++i ){ | |
124 | if( myhand[i] == 4 ) printf( "%s ", cname[i] ); | |
125 | } | |
126 | printf( "\n" ); | |
127 | } | |
128 | ||
129 | printf( "%d cards in my hand, %d in the pool\n", ct, DECK-nextcd ); | |
130 | printf( "You ask me for: " ); | |
131 | } | |
132 | ||
133 | phand( h ) HAND h; { | |
134 | register i, j; | |
135 | ||
136 | j = 0; | |
137 | ||
138 | for( i = 1; i<= CTYPE; ++i ){ | |
139 | if( h[i] == 4 ) { | |
140 | ++j; | |
141 | continue; | |
142 | } | |
143 | if( h[i] ){ | |
144 | register k; | |
145 | k = h[i]; | |
146 | while( k-- ) printf( "%s ", cname[i] ); | |
147 | } | |
148 | } | |
149 | ||
150 | if( j ){ | |
151 | printf( "+ Books of " ); | |
152 | for( i=1; i<=CTYPE; ++i ){ | |
153 | if( h[i] == 4 ) printf( "%s ", cname[i] ); | |
154 | } | |
155 | } | |
156 | ||
157 | printf( "\n" ); | |
158 | } | |
159 | ||
160 | main( argc, argv ) char * argv[]; { | |
161 | /* initialize shuffling, ask for instructions, play game, die */ | |
162 | register c; | |
163 | ||
164 | if( argc > 1 && argv[1][0] == '-' ){ | |
165 | while( argv[1][0] == '-' ) { ++argv[1]; ++debug; } | |
166 | argv++; | |
167 | argc--; | |
168 | } | |
169 | ||
170 | srand( getpid() ); | |
171 | ||
172 | printf( "instructions?\n" ); | |
173 | if( (c=getchar()) != '\n' ){ | |
174 | if( c != 'n' ) instruct(); | |
175 | while( getchar() != '\n' ); | |
176 | } | |
177 | ||
178 | game(); | |
179 | } | |
180 | ||
181 | /* print instructions */ | |
182 | ||
183 | char *inst[] = { | |
184 | "`Go Fish' is a childrens' card game. The Object is to", | |
185 | "accumulate `books' of 4 cards with the same face value. The", | |
186 | "players alternate turns; each turn begins with one player", | |
187 | "selecting a card from his hand, and asking the other player for", | |
188 | "all cards of that face value. If the other player has one or", | |
189 | "more cards of that face value in his hand, he gives them to the", | |
190 | "first player, and the first player makes another request.", | |
191 | "Eventually, the first player asks for a card which is not in", | |
192 | "the second player's hand: he replies `GO FISH!' The first", | |
193 | "player then draws a card from the `pool' of undealt cards. If", | |
194 | "this is the card he had last requested, he draws again. When a", | |
195 | "book is made, either through drawing or requesting, the cards", | |
196 | "are laid down and no further action takes place with that face", | |
197 | "value. To play the computer, simply make guesses by typing a,", | |
198 | "2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, or k when asked. Hitting", | |
199 | "return gives you information about the size of my hand and the", | |
200 | "pool, and tells you about my books. Saying `p' as a first", | |
201 | "guess puts you into `pro' level; The default is pretty dumb!", | |
202 | "Good Luck!\n", | |
203 | "", | |
204 | }; | |
205 | ||
206 | instruct(){ | |
207 | register char **cpp; | |
208 | ||
209 | printf( "\n" ); | |
210 | ||
211 | for( cpp = inst; **cpp != '\0'; ++cpp ){ | |
212 | printf( "%s\n", *cpp ); | |
213 | } | |
214 | } | |
215 | ||
216 | game(){ | |
217 | ||
218 | shuffle(); | |
219 | ||
220 | deal( myhand, 7 ); | |
221 | deal( yourhand, 7 ); | |
222 | ||
223 | start( myhand ); | |
224 | ||
225 | for(;;){ | |
226 | ||
227 | register g; | |
228 | ||
229 | ||
230 | /* you make repeated guesses */ | |
231 | ||
232 | for(;;) { | |
233 | printf( "your hand is: " ); | |
234 | phand( yourhand ); | |
235 | printf( "you ask me for: " ); | |
236 | if( !move( yourhand, myhand, g=guess(), 0 ) ) break; | |
237 | printf( "Guess again\n" ); | |
238 | } | |
239 | ||
240 | /* I make repeated guesses */ | |
241 | ||
242 | for(;;) { | |
243 | if( (g=myguess()) != NOMORE ){ | |
244 | printf( "I ask you for: %s\n", cname[g] ); | |
245 | } | |
246 | if( !move( myhand, yourhand, g, 1 ) ) break; | |
247 | printf( "I get another guess\n" ); | |
248 | } | |
249 | } | |
250 | } | |
251 | ||
252 | /* reflect the effect of a move on the hands */ | |
253 | ||
254 | move( hs, ht, g, v ) HAND hs, ht; { | |
255 | /* hand hs has made a guess, g, directed towards ht */ | |
256 | /* v on indicates that the guess was made by the machine */ | |
257 | register d; | |
258 | char *sp, *tp; | |
259 | ||
260 | sp = tp = "I"; | |
261 | if( v ) tp = "You"; | |
262 | else sp = "You"; | |
263 | ||
264 | if( g == NOMORE ){ | |
265 | d = draw(); | |
266 | if( d == NOMORE ) score(); | |
267 | else { | |
268 | ||
269 | printf( "Empty Hand\n" ); | |
270 | if( !v ) printf( "You draw %s\n", cname[d] ); | |
271 | mark( hs, d ); | |
272 | } | |
273 | return( 0 ); | |
274 | } | |
275 | ||
276 | if( !v ) heguessed( g ); | |
277 | ||
278 | if( hs[g] == 0 ){ | |
279 | if( v ) error( "Rotten Guess" ); | |
280 | printf( "You don't have any %s's\n", cname[g] ); | |
281 | return(1); | |
282 | } | |
283 | ||
284 | if( ht[g] ){ /* successful guess */ | |
285 | printf( "%s have %d %s%s\n", tp, ht[g], cname[g], ht[g]>1?"'s":"" ); | |
286 | hs[g] += ht[g]; | |
287 | ht[g] = 0; | |
288 | if( hs[g] == 4 ) madebook(g); | |
289 | return(1); | |
290 | } | |
291 | ||
292 | /* GO FISH! */ | |
293 | ||
294 | printf( "%s say \"GO FISH!\"\n", tp ); | |
295 | ||
296 | newdraw: | |
297 | d = draw(); | |
298 | if( d == NOMORE ) { | |
299 | printf( "No more cards\n" ); | |
300 | return(0); | |
301 | } | |
302 | mark( hs, d ); | |
303 | if( !v ) printf( "You draw %s\n", cname[d] ); | |
304 | if( hs[d] == 4 ) madebook(d); | |
305 | if( d == g ){ | |
306 | printf( "%s drew the guess, so draw again\n", sp ); | |
307 | if( !v ) hedrew( d ); | |
308 | goto newdraw; | |
309 | } | |
310 | return( 0 ); | |
311 | } | |
312 | ||
313 | madebook( x ){ | |
314 | printf( "Made a book of %s's\n", cname[x] ); | |
315 | } | |
316 | ||
317 | score(){ | |
318 | register my, your, i; | |
319 | ||
320 | my = your = 0; | |
321 | ||
322 | printf( "The game is over.\nMy books: " ); | |
323 | ||
324 | for( i=1; i<=CTYPE;++i ){ | |
325 | if( myhand[i] == 4 ){ | |
326 | ++my; | |
327 | printf( "%s ", cname[i] ); | |
328 | } | |
329 | } | |
330 | ||
331 | printf( "\nYour books: " ); | |
332 | ||
333 | for( i=1; i<=CTYPE;++i ){ | |
334 | if( yourhand[i] == 4 ){ | |
335 | ++your; | |
336 | printf( "%s ", cname[i] ); | |
337 | } | |
338 | } | |
339 | ||
340 | printf( "\n\nI have %d, you have %d\n", my, your ); | |
341 | ||
342 | printf( "\n%s win!!!\n", my>your?"I":"You" ); | |
343 | exit(0); | |
344 | } | |
345 | ||
346 | # define G(x) { if(go) goto err; else go = x; } | |
347 | ||
348 | guess(){ | |
349 | /* get the guess from the tty and return it... */ | |
350 | register g, go; | |
351 | ||
352 | go = 0; | |
353 | ||
354 | for(;;) { | |
355 | switch( g = getchar() ){ | |
356 | ||
357 | case 'p': | |
358 | case 'P': | |
359 | ++proflag; | |
360 | continue; | |
361 | ||
362 | case '2': | |
363 | case '3': | |
364 | case '4': | |
365 | case '5': | |
366 | case '6': | |
367 | case '7': | |
368 | case '8': | |
369 | case '9': | |
370 | G(g-'0'); | |
371 | continue; | |
372 | ||
373 | case 'a': | |
374 | case 'A': | |
375 | G(1); | |
376 | continue; | |
377 | ||
378 | case '1': | |
379 | G(10); | |
380 | continue; | |
381 | ||
382 | case '0': | |
383 | if( go != 10 ) goto err; | |
384 | continue; | |
385 | ||
386 | case 'J': | |
387 | case 'j': | |
388 | G(11); | |
389 | continue; | |
390 | ||
391 | case 'Q': | |
392 | case 'q': | |
393 | G(12); | |
394 | continue; | |
395 | ||
396 | case 'K': | |
397 | case 'k': | |
398 | G(13); | |
399 | continue; | |
400 | ||
401 | case '\n': | |
402 | if( empty( yourhand ) ) return( NOMORE ); | |
403 | if( go == 0 ){ | |
404 | stats(); | |
405 | continue; | |
406 | } | |
407 | return( go ); | |
408 | ||
409 | case ' ': | |
410 | case '\t': | |
411 | continue; | |
412 | ||
413 | default: | |
414 | err: | |
415 | while( g != '\n' ) g = getchar(); | |
416 | printf( "what?\n" ); | |
417 | continue; | |
418 | } | |
419 | } | |
420 | } | |
421 | ||
422 | /* the program's strategy appears from here to the end */ | |
423 | ||
424 | char try[100]; | |
425 | char ntry; | |
426 | char haveguessed[CTSIZ]; | |
427 | ||
428 | char hehas[CTSIZ]; | |
429 | ||
430 | start( h ) HAND h; { | |
431 | ; | |
432 | } | |
433 | ||
434 | hedrew( d ){ | |
435 | ++hehas[d]; | |
436 | } | |
437 | ||
438 | heguessed( d ){ | |
439 | ++hehas[d]; | |
440 | } | |
441 | ||
442 | myguess(){ | |
443 | ||
444 | register i, lg, t; | |
445 | ||
446 | if( empty( myhand ) ) return( NOMORE ); | |
447 | ||
448 | /* make a list of those things which i have */ | |
449 | /* leave off any which are books */ | |
450 | /* if something is found that he has, guess it! */ | |
451 | ||
452 | ntry = 0; | |
453 | for( i=1; i<=CTYPE; ++i ){ | |
454 | if( myhand[i] == 0 || myhand[i] == 4 ) continue; | |
455 | try[ntry++] = i; | |
456 | } | |
457 | ||
458 | if( !proflag ) goto random; | |
459 | ||
460 | /* get ones he has, if any */ | |
461 | ||
462 | for( i=0; i<ntry; ++i ){ | |
463 | if( hehas[try[i]] ) { | |
464 | i = try[i]; | |
465 | goto gotguess; | |
466 | } | |
467 | } | |
468 | ||
469 | /* is there one that has never been guessed; if so, guess it */ | |
470 | lg = 101; | |
471 | for( i=0; i<ntry; ++i ){ | |
472 | if( haveguessed[try[i]] < lg ) lg = haveguessed[try[i]]; | |
473 | } | |
474 | /* remove all those not guessed longest ago */ | |
475 | ||
476 | t = 0; | |
477 | for( i=0; i<ntry; ++i ){ | |
478 | if( haveguessed[try[i]] == lg ) try[t++] = try[i]; | |
479 | } | |
480 | ntry = t; | |
481 | if( t <= 0 ) error( "bad guessing loop" ); | |
482 | ||
483 | random: | |
484 | i = choose( try, ntry ); /* make a random choice */ | |
485 | ||
486 | gotguess: /* do bookkeeping */ | |
487 | ||
488 | hehas[i] = 0; /* he won't anymore! */ | |
489 | for( t=1; t<=CTYPE; ++t ){ | |
490 | if( haveguessed[t] ) --haveguessed[t]; | |
491 | } | |
492 | haveguessed[i] = 100; /* will have guessed it */ | |
493 | return(i); | |
494 | ||
495 | } | |
496 |