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e0bbfbf9 DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
69fb7db6 KB |
3 | * All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
6 | * provided that this notice is preserved and that due credit is given | |
7 | * to the University of California at Berkeley. The name of the University | |
8 | * may not be used to endorse or promote products derived from this | |
9 | * software without specific prior written permission. This software | |
10 | * is provided ``as is'' without express or implied warranty. | |
e0bbfbf9 DF |
11 | */ |
12 | ||
13 | #ifndef lint | |
69fb7db6 KB |
14 | static char sccsid[] = "@(#)subs.c 5.3 (Berkeley) %G%"; |
15 | #endif /* not lint */ | |
d7001d99 RH |
16 | |
17 | #include <stdio.h> | |
18 | #include "back.h" | |
19 | ||
20 | int buffnum; | |
21 | char outbuff[BUFSIZ]; | |
22 | ||
23 | static char plred[] = "Player is red, computer is white."; | |
24 | static char plwhite[] = "Player is white, computer is red."; | |
25 | static char nocomp[] = "(No computer play.)"; | |
26 | ||
27 | char *descr[] = { | |
28 | "Usage: backgammon [-] [n r w b pr pw pb t3a]\n", | |
29 | "\t-\tgets this list\n\tn\tdon't ask for rules or instructions", | |
30 | "\tr\tplayer is red (implies n)\n\tw\tplayer is white (implies n)", | |
31 | "\tb\ttwo players, red and white (implies n)", | |
32 | "\tpr\tprint the board before red's turn", | |
33 | "\tpw\tprint the board before white's turn", | |
34 | "\tpb\tprint the board before both player's turn", | |
35 | "\tterm\tterminal is a term", | |
36 | "\tsfile\trecover saved game from file", | |
37 | 0 | |
38 | }; | |
39 | ||
40 | errexit (s) | |
41 | register char *s; | |
42 | { | |
43 | write (2,"\n",1); | |
44 | perror (s); | |
45 | getout(); | |
46 | } | |
47 | ||
48 | strset (s1,s2) | |
49 | register char *s1, *s2; | |
50 | { | |
51 | while ( (*s1++ = *s2++) != '\0'); | |
52 | } | |
53 | ||
54 | addbuf (c) | |
55 | register char c; | |
56 | ||
57 | { | |
58 | buffnum++; | |
59 | if (buffnum == BUFSIZ) { | |
60 | if (write(1,outbuff,BUFSIZ) != BUFSIZ) | |
61 | errexit ("addbuf (write):"); | |
62 | buffnum = 0; | |
63 | } | |
64 | outbuff[buffnum] = c; | |
65 | } | |
66 | ||
67 | buflush () { | |
68 | if (buffnum < 0) | |
69 | return; | |
70 | buffnum++; | |
71 | if (write (1,outbuff,buffnum) != buffnum) | |
72 | errexit ("buflush (write):"); | |
73 | buffnum = -1; | |
74 | } | |
75 | ||
76 | readc () { | |
77 | char c; | |
78 | ||
79 | if (tflag) { | |
80 | cline(); | |
81 | newpos(); | |
82 | } | |
83 | buflush(); | |
84 | if (read(0,&c,1) != 1) | |
85 | errexit ("readc"); | |
9d921ef9 | 86 | #ifdef WHY_IS_THIS_HARDWIRED_IN_HERE |
d7001d99 RH |
87 | if (c == '\177') |
88 | getout(); | |
9d921ef9 | 89 | #endif |
d7001d99 RH |
90 | if (c == '\033' || c == '\015') |
91 | return ('\n'); | |
92 | if (cflag) | |
93 | return (c); | |
94 | if (c == '\014') | |
95 | return ('R'); | |
96 | if (c >= 'a' && c <= 'z') | |
97 | return (c & 0137); | |
98 | return (c); | |
99 | } | |
100 | ||
101 | writec (c) | |
102 | char c; | |
103 | { | |
104 | if (tflag) | |
105 | fancyc (c); | |
106 | else | |
107 | addbuf (c); | |
108 | } | |
109 | ||
110 | writel (l) | |
111 | register char *l; | |
112 | { | |
113 | #ifdef DEBUG | |
114 | register char *s; | |
115 | ||
116 | if (trace == NULL) | |
117 | trace = fopen ("bgtrace","w"); | |
118 | ||
119 | fprintf (trace,"writel: \""); | |
120 | for (s = l; *s; s++) { | |
121 | if (*s < ' ' || *s == '\177') | |
122 | fprintf (trace,"^%c",(*s)^0100); | |
123 | else | |
124 | putc (*s,trace); | |
125 | } | |
126 | fprintf (trace,"\"\n"); | |
127 | fflush (trace); | |
128 | #endif | |
129 | ||
130 | while (*l) | |
131 | writec (*l++); | |
132 | } | |
133 | ||
134 | proll () { | |
135 | if (d0) | |
136 | swap; | |
137 | if (cturn == 1) | |
138 | writel ("Red's roll: "); | |
139 | else | |
140 | writel ("White's roll: "); | |
141 | writec (D0+'0'); | |
142 | writec ('\040'); | |
143 | writec (D1+'0'); | |
144 | if (tflag) | |
145 | cline(); | |
146 | } | |
147 | ||
148 | wrint (n) | |
149 | int n; | |
150 | { | |
151 | register int i, j, t; | |
152 | ||
153 | for (i = 4; i > 0; i--) { | |
154 | t = 1; | |
155 | for (j = 0; j<i; j++) | |
156 | t *= 10; | |
157 | if (n > t-1) | |
158 | writec ((n/t)%10+'0'); | |
159 | } | |
160 | writec (n%10+'0'); | |
161 | } | |
162 | ||
163 | gwrite() { | |
164 | register int r, c; | |
165 | ||
166 | if (tflag) { | |
167 | r = curr; | |
168 | c = curc; | |
169 | curmove (16,0); | |
170 | } | |
171 | ||
172 | if (gvalue > 1) { | |
173 | writel ("Game value: "); | |
174 | wrint (gvalue); | |
175 | writel (". "); | |
176 | if (dlast == -1) | |
177 | writel (color[0]); | |
178 | else | |
179 | writel (color[1]); | |
180 | writel (" doubled last."); | |
181 | } else { | |
182 | switch (pnum) { | |
183 | case -1: /* player is red */ | |
184 | writel (plred); | |
185 | break; | |
186 | case 0: /* player is both colors */ | |
187 | writel (nocomp); | |
188 | break; | |
189 | case 1: /* player is white */ | |
190 | writel (plwhite); | |
191 | } | |
192 | } | |
193 | ||
194 | if (rscore || wscore) { | |
195 | writel (" "); | |
196 | wrscore(); | |
197 | } | |
198 | ||
199 | if (tflag) { | |
200 | cline(); | |
201 | curmove (r,c); | |
202 | } | |
203 | } | |
204 | ||
205 | quit () { | |
206 | register int i; | |
207 | ||
208 | if (tflag) { | |
209 | curmove (20,0); | |
210 | clend(); | |
211 | } else | |
212 | writec ('\n'); | |
213 | writel ("Are you sure you want to quit?"); | |
214 | if (yorn (0)) { | |
215 | if (rfl) { | |
216 | writel ("Would you like to save this game?"); | |
217 | if (yorn(0)) | |
218 | save(0); | |
219 | } | |
220 | cturn = 0; | |
221 | return (1); | |
222 | } | |
223 | return (0); | |
224 | } | |
225 | ||
226 | yorn (special) | |
227 | register char special; /* special response */ | |
228 | { | |
229 | register char c; | |
230 | register int i; | |
231 | ||
232 | i = 1; | |
233 | while ( (c = readc()) != 'Y' && c != 'N') { | |
234 | if (special && c == special) | |
235 | return (2); | |
236 | if (i) { | |
237 | if (special) { | |
238 | writel (" (Y, N, or "); | |
239 | writec (special); | |
240 | writec (')'); | |
241 | } else | |
242 | writel (" (Y or N)"); | |
243 | i = 0; | |
244 | } else | |
245 | writec ('\007'); | |
246 | } | |
247 | if (c == 'Y') | |
248 | writel (" Yes.\n"); | |
249 | else | |
250 | writel (" No.\n"); | |
251 | if (tflag) | |
252 | buflush(); | |
253 | return (c == 'Y'); | |
254 | } | |
255 | ||
256 | wrhit (i) | |
257 | register int i; | |
258 | { | |
259 | writel ("Blot hit on "); | |
260 | wrint (i); | |
261 | writec ('.'); | |
262 | writec ('\n'); | |
263 | } | |
264 | ||
265 | nexturn () { | |
266 | register int c; | |
267 | ||
268 | cturn = -cturn; | |
269 | c = cturn/abs(cturn); | |
270 | home = bar; | |
271 | bar = 25-bar; | |
272 | offptr += c; | |
273 | offopp -= c; | |
274 | inptr += c; | |
275 | inopp -= c; | |
276 | Colorptr += c; | |
277 | colorptr += c; | |
278 | } | |
279 | ||
280 | getarg (arg) | |
281 | register char ***arg; | |
282 | ||
283 | { | |
92f12e47 | 284 | register char **s; |
d7001d99 RH |
285 | |
286 | /* process arguments here. dashes are ignored, nbrw are ignored | |
287 | if the game is being recovered */ | |
288 | ||
92f12e47 KM |
289 | s = *arg; |
290 | while (s[0][0] == '-') { | |
291 | switch (s[0][1]) { | |
d7001d99 RH |
292 | |
293 | /* don't ask if rules or instructions needed */ | |
294 | case 'n': | |
295 | if (rflag) | |
296 | break; | |
297 | aflag = 0; | |
92f12e47 | 298 | args[acnt++] = 'n'; |
d7001d99 RH |
299 | break; |
300 | ||
301 | /* player is both read and white */ | |
302 | case 'b': | |
303 | if (rflag) | |
304 | break; | |
305 | pnum = 0; | |
306 | aflag = 0; | |
92f12e47 | 307 | args[acnt++] = 'b'; |
d7001d99 RH |
308 | break; |
309 | ||
310 | /* player is red */ | |
311 | case 'r': | |
312 | if (rflag) | |
313 | break; | |
314 | pnum = -1; | |
315 | aflag = 0; | |
92f12e47 | 316 | args[acnt++] = 'r'; |
d7001d99 RH |
317 | break; |
318 | ||
319 | /* player is white */ | |
320 | case 'w': | |
321 | if (rflag) | |
322 | break; | |
323 | pnum = 1; | |
324 | aflag = 0; | |
92f12e47 | 325 | args[acnt++] = 'w'; |
d7001d99 RH |
326 | break; |
327 | ||
328 | /* print board after move according to following character */ | |
329 | case 'p': | |
92f12e47 | 330 | if (s[0][2] != 'r' && s[0][2] != 'w' && s[0][2] != 'b') |
d7001d99 RH |
331 | break; |
332 | args[acnt++] = 'p'; | |
92f12e47 KM |
333 | args[acnt++] = s[0][2]; |
334 | if (s[0][2] == 'r') | |
d7001d99 | 335 | bflag = 1; |
92f12e47 | 336 | if (s[0][2] == 'w') |
d7001d99 | 337 | bflag = -1; |
92f12e47 | 338 | if (s[0][2] == 'b') |
d7001d99 RH |
339 | bflag = 0; |
340 | break; | |
341 | ||
342 | case 't': | |
92f12e47 KM |
343 | if (s[0][2] == '\0') { /* get terminal caps */ |
344 | s++; | |
345 | tflag = getcaps (*s); | |
346 | } else | |
347 | tflag = getcaps (&s[0][2]); | |
348 | break; | |
d7001d99 RH |
349 | |
350 | case 's': | |
92f12e47 KM |
351 | s++; |
352 | /* recover file */ | |
353 | recover (s[0]); | |
354 | break; | |
d7001d99 | 355 | } |
92f12e47 | 356 | s++; |
d7001d99 | 357 | } |
92f12e47 KM |
358 | if (s[0] != 0) |
359 | recover(s[0]); | |
d7001d99 RH |
360 | } |
361 | ||
362 | init () { | |
363 | register int i; | |
364 | for (i = 0; i < 26;) | |
365 | board[i++] = 0; | |
366 | board[1] = 2; | |
367 | board[6] = board[13] = -5; | |
368 | board[8] = -3; | |
369 | board[12] = board[19] = 5; | |
370 | board[17] = 3; | |
371 | board[24] = -2; | |
372 | off[0] = off[1] = -15; | |
373 | in[0] = in[1] = 5; | |
374 | gvalue = 1; | |
375 | dlast = 0; | |
376 | } | |
377 | ||
378 | wrscore () { | |
379 | writel ("Score: "); | |
380 | writel (color[1]); | |
381 | writec (' '); | |
382 | wrint (rscore); | |
383 | writel (", "); | |
384 | writel (color[0]); | |
385 | writec (' '); | |
386 | wrint (wscore); | |
387 | } | |
388 | ||
389 | fixtty (mode) | |
390 | int mode; | |
391 | { | |
392 | if (tflag) | |
393 | newpos(); | |
394 | buflush(); | |
395 | tty.sg_flags = mode; | |
396 | if (stty (0,&tty) < 0) | |
397 | errexit("fixtty"); | |
398 | } | |
399 | ||
400 | getout () { | |
401 | /* go to bottom of screen */ | |
402 | if (tflag) { | |
403 | curmove (23,0); | |
404 | cline(); | |
405 | } else | |
406 | writec ('\n'); | |
407 | ||
408 | /* fix terminal status */ | |
409 | fixtty (old); | |
410 | exit(); | |
411 | } | |
412 | roll () { | |
413 | register char c; | |
414 | register int row; | |
415 | register int col; | |
416 | ||
417 | if (iroll) { | |
418 | if (tflag) { | |
419 | row = curr; | |
420 | col = curc; | |
421 | curmove (17,0); | |
422 | } else | |
423 | writec ('\n'); | |
424 | writel ("ROLL: "); | |
425 | c = readc(); | |
426 | if (c != '\n') { | |
427 | while (c < '1' || c > '6') | |
428 | c = readc(); | |
429 | D0 = c-'0'; | |
430 | writec (' '); | |
431 | writec (c); | |
432 | c = readc(); | |
433 | while (c < '1' || c > '6') | |
434 | c = readc(); | |
435 | D1 = c-'0'; | |
436 | writec (' '); | |
437 | writec (c); | |
438 | if (tflag) { | |
439 | curmove (17,0); | |
440 | cline(); | |
441 | curmove (row,col); | |
442 | } else | |
443 | writec ('\n'); | |
444 | return; | |
445 | } | |
446 | if (tflag) { | |
447 | curmove (17,0); | |
448 | cline(); | |
449 | curmove (row,col); | |
450 | } else | |
451 | writec ('\n'); | |
452 | } | |
453 | D0 = rnum(6)+1; | |
454 | D1 = rnum(6)+1; | |
455 | d0 = 0; | |
456 | } |