main.c revision 1.23
1 /* $NetBSD: main.c,v 1.23 2010/03/29 03:51:55 dholland Exp $ */ 2 3 /* 4 * Copyright (c) 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 __COPYRIGHT("@(#) Copyright (c) 1994\ 38 The Regents of the University of California. All rights reserved."); 39 #endif /* not lint */ 40 41 #ifndef lint 42 #if 0 43 static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 5/4/95"; 44 #else 45 __RCSID("$NetBSD: main.c,v 1.23 2010/03/29 03:51:55 dholland Exp $"); 46 #endif 47 #endif /* not lint */ 48 49 #include <curses.h> 50 #include <err.h> 51 #include <limits.h> 52 #include <signal.h> 53 #include <stdarg.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <time.h> 57 #include <unistd.h> 58 59 #include "gomoku.h" 60 61 #define USER 0 /* get input from standard input */ 62 #define PROGRAM 1 /* get input from program */ 63 #define INPUTF 2 /* get input from a file */ 64 65 int interactive = 1; /* true if interactive */ 66 int debug; /* true if debugging */ 67 static int test; /* both moves come from 1: input, 2: computer */ 68 static char *prog; /* name of program */ 69 static char user[LOGIN_NAME_MAX]; /* name of player */ 70 static FILE *debugfp; /* file for debug output */ 71 static FILE *inputfp; /* file for debug input */ 72 73 const char pdir[4] = "-\\|/"; 74 75 struct spotstr board[BAREA]; /* info for board */ 76 struct combostr frames[FAREA]; /* storage for all frames */ 77 struct combostr *sortframes[2]; /* sorted list of non-empty frames */ 78 u_char overlap[FAREA * FAREA]; /* true if frame [a][b] overlap */ 79 short intersect[FAREA * FAREA]; /* frame [a][b] intersection */ 80 int movelog[BSZ * BSZ]; /* log of all the moves */ 81 int movenum; /* current move number */ 82 const char *plyr[2]; /* who's who */ 83 84 static int readinput(FILE *); 85 static void misclog(const char *, ...) __printflike(1, 2); 86 static void quit(void) __dead; 87 static void quitsig(int) __dead; 88 89 int 90 main(int argc, char **argv) 91 { 92 char buf[128]; 93 char fname[PATH_MAX]; 94 char *tmp; 95 int color, curmove, i, ch; 96 int input[2]; 97 static const char *const fmt[2] = { 98 "%3d %-6s", 99 "%3d %-6s" 100 }; 101 102 /* Revoke setgid privileges */ 103 setgid(getgid()); 104 105 tmp = getlogin(); 106 if (tmp) { 107 strlcpy(user, tmp, sizeof(user)); 108 } else { 109 strcpy(user, "you"); 110 } 111 112 color = curmove = 0; 113 114 prog = strrchr(argv[0], '/'); 115 if (prog) 116 prog++; 117 else 118 prog = argv[0]; 119 120 while ((ch = getopt(argc, argv, "bcdD:u")) != -1) { 121 switch (ch) { 122 case 'b': /* background */ 123 interactive = 0; 124 break; 125 case 'd': /* debugging */ 126 debug++; 127 break; 128 case 'D': /* log debug output to file */ 129 if ((debugfp = fopen(optarg, "w")) == NULL) 130 err(1, "%s", optarg); 131 break; 132 case 'u': /* testing: user versus user */ 133 test = 1; 134 break; 135 case 'c': /* testing: computer versus computer */ 136 test = 2; 137 break; 138 } 139 } 140 argc -= optind; 141 argv += optind; 142 if (argc) { 143 if ((inputfp = fopen(*argv, "r")) == NULL) 144 err(1, "%s", *argv); 145 } 146 147 if (!debug) 148 #ifdef SVR4 149 srand(time(0)); 150 #else 151 srandom(time(0)); 152 #endif 153 if (interactive) 154 cursinit(); /* initialize curses */ 155 again: 156 bdinit(board); /* initialize board contents */ 157 158 if (interactive) { 159 plyr[BLACK] = plyr[WHITE] = "???"; 160 bdisp_init(); /* initialize display of board */ 161 #ifdef DEBUG 162 signal(SIGINT, whatsup); 163 #else 164 signal(SIGINT, quitsig); 165 #endif 166 167 if (inputfp == NULL && test == 0) { 168 ask("black or white? "); 169 for (;;) { 170 ch = getchar(); 171 if (ch == 'b' || ch == 'B') { 172 color = BLACK; 173 break; 174 } 175 if (ch == 'w' || ch == 'W') { 176 color = WHITE; 177 break; 178 } 179 move(BSZ3, 0); 180 printw("Black moves first. Please enter `black' or `white'\n"); 181 } 182 move(BSZ3, 0); 183 clrtoeol(); 184 } 185 } else { 186 setbuf(stdout, 0); 187 get_line(buf, sizeof(buf)); 188 if (strcmp(buf, "black") == 0) 189 color = BLACK; 190 else if (strcmp(buf, "white") == 0) 191 color = WHITE; 192 else { 193 panic("Huh? Expected `black' or `white', got `%s'\n", 194 buf); 195 } 196 } 197 198 if (inputfp) { 199 input[BLACK] = INPUTF; 200 input[WHITE] = INPUTF; 201 } else { 202 switch (test) { 203 case 0: /* user versus program */ 204 input[color] = USER; 205 input[!color] = PROGRAM; 206 break; 207 208 case 1: /* user versus user */ 209 input[BLACK] = USER; 210 input[WHITE] = USER; 211 break; 212 213 case 2: /* program versus program */ 214 input[BLACK] = PROGRAM; 215 input[WHITE] = PROGRAM; 216 break; 217 } 218 } 219 if (interactive) { 220 plyr[BLACK] = input[BLACK] == USER ? user : prog; 221 plyr[WHITE] = input[WHITE] == USER ? user : prog; 222 bdwho(1); 223 } 224 225 for (color = BLACK; ; color = !color) { 226 top: 227 switch (input[color]) { 228 case INPUTF: /* input comes from a file */ 229 curmove = readinput(inputfp); 230 if (curmove != ILLEGAL) 231 break; 232 switch (test) { 233 case 0: /* user versus program */ 234 input[color] = USER; 235 input[!color] = PROGRAM; 236 break; 237 238 case 1: /* user versus user */ 239 input[BLACK] = USER; 240 input[WHITE] = USER; 241 break; 242 243 case 2: /* program versus program */ 244 input[BLACK] = PROGRAM; 245 input[WHITE] = PROGRAM; 246 break; 247 } 248 plyr[BLACK] = input[BLACK] == USER ? user : prog; 249 plyr[WHITE] = input[WHITE] == USER ? user : prog; 250 bdwho(1); 251 goto top; 252 253 case USER: /* input comes from standard input */ 254 getinput: 255 if (interactive) { 256 ask("move? "); 257 curmove = get_coord(); 258 if (curmove == SAVE) { 259 FILE *fp; 260 261 ask("save file name? "); 262 (void)get_line(fname, sizeof(fname)); 263 if ((fp = fopen(fname, "w")) == NULL) { 264 misclog("cannot create save file"); 265 goto getinput; 266 } 267 for (i = 0; i < movenum - 1; i++) 268 fprintf(fp, "%s\n", 269 stoc(movelog[i])); 270 fclose(fp); 271 goto getinput; 272 } 273 if (curmove != RESIGN && 274 board[curmove].s_occ != EMPTY) { 275 /*misclog("Illegal move");*/ 276 beep(); 277 goto getinput; 278 } 279 } else { 280 if (!get_line(buf, sizeof(buf))) { 281 curmove = RESIGN; 282 break; 283 } 284 if (buf[0] == '\0') 285 goto getinput; 286 curmove = ctos(buf); 287 } 288 break; 289 290 case PROGRAM: /* input comes from the program */ 291 if (interactive) 292 ask("Thinking..."); 293 curmove = pickmove(color); 294 break; 295 } 296 if (interactive) { 297 misclog(fmt[color], movenum, stoc(curmove)); 298 } 299 if ((i = makemove(color, curmove)) != MOVEOK) 300 break; 301 if (interactive) 302 bdisp(); 303 } 304 if (interactive) { 305 move(BSZ3, 0); 306 switch (i) { 307 case WIN: 308 if (input[color] == PROGRAM) 309 addstr("Ha ha, I won"); 310 else if (input[0] == USER && input[1] == USER) 311 addstr("Well, you won (and lost)"); 312 else 313 addstr("Rats! you won"); 314 break; 315 case TIE: 316 addstr("Wow! its a tie"); 317 break; 318 case ILLEGAL: 319 addstr("Illegal move"); 320 break; 321 } 322 clrtoeol(); 323 bdisp(); 324 if (i != RESIGN) { 325 replay: 326 ask("replay? "); 327 if (get_line(buf, sizeof(buf)) && 328 (buf[0] == 'y' || buf[0] == 'Y')) 329 goto again; 330 if (strcmp(buf, "save") == 0) { 331 FILE *fp; 332 333 ask("save file name? "); 334 (void)get_line(fname, sizeof(fname)); 335 if ((fp = fopen(fname, "w")) == NULL) { 336 misclog("cannot create save file"); 337 goto replay; 338 } 339 for (i = 0; i < movenum - 1; i++) 340 fprintf(fp, "%s\n", 341 stoc(movelog[i])); 342 fclose(fp); 343 goto replay; 344 } 345 } 346 } 347 quit(); 348 /* NOTREACHED */ 349 return(0); 350 } 351 352 static int 353 readinput(FILE *fp) 354 { 355 int c; 356 char buf[128]; 357 size_t pos; 358 359 pos = 0; 360 while ((c = getc(fp)) != EOF && c != '\n' && pos < sizeof(buf) - 1) 361 buf[pos++] = c; 362 buf[pos] = '\0'; 363 return ctos(buf); 364 } 365 366 #ifdef DEBUG 367 /* 368 * Handle strange situations. 369 */ 370 void 371 whatsup(int signum) 372 { 373 int i, n, s1, s2, d1, d2; 374 struct spotstr *sp; 375 FILE *fp; 376 char *str; 377 struct elist *ep; 378 struct combostr *cbp; 379 char input[128]; 380 char tmp[128]; 381 382 if (!interactive) 383 quit(); 384 top: 385 ask("cmd? "); 386 if (!get_line(input, sizeof(input))) 387 quit(); 388 switch (*input) { 389 case '\0': 390 goto top; 391 case 'q': /* conservative quit */ 392 quit(); 393 case 'd': /* set debug level */ 394 debug = input[1] - '0'; 395 debuglog("Debug set to %d", debug); 396 sleep(1); 397 case 'c': 398 break; 399 case 'b': /* back up a move */ 400 if (movenum > 1) { 401 movenum--; 402 board[movelog[movenum - 1]].s_occ = EMPTY; 403 bdisp(); 404 } 405 goto top; 406 case 's': /* suggest a move */ 407 i = input[1] == 'b' ? BLACK : WHITE; 408 debuglog("suggest %c %s", i == BLACK ? 'B' : 'W', 409 stoc(pickmove(i))); 410 goto top; 411 case 'f': /* go forward a move */ 412 board[movelog[movenum - 1]].s_occ = movenum & 1 ? BLACK : WHITE; 413 movenum++; 414 bdisp(); 415 goto top; 416 case 'l': /* print move history */ 417 if (input[1] == '\0') { 418 for (i = 0; i < movenum - 1; i++) 419 debuglog("%s", stoc(movelog[i])); 420 goto top; 421 } 422 if ((fp = fopen(input + 1, "w")) == NULL) 423 goto top; 424 for (i = 0; i < movenum - 1; i++) { 425 fprintf(fp, "%s", stoc(movelog[i])); 426 if (++i < movenum - 1) 427 fprintf(fp, " %s\n", stoc(movelog[i])); 428 else 429 fputc('\n', fp); 430 } 431 bdump(fp); 432 fclose(fp); 433 goto top; 434 case 'o': 435 /* avoid use w/o initialization on invalid input */ 436 d1 = s1 = 0; 437 438 n = 0; 439 for (str = input + 1; *str; str++) 440 if (*str == ',') { 441 for (d1 = 0; d1 < 4; d1++) 442 if (str[-1] == pdir[d1]) 443 break; 444 str[-1] = '\0'; 445 sp = &board[s1 = ctos(input + 1)]; 446 n = (sp->s_frame[d1] - frames) * FAREA; 447 *str++ = '\0'; 448 break; 449 } 450 sp = &board[s2 = ctos(str)]; 451 while (*str) 452 str++; 453 for (d2 = 0; d2 < 4; d2++) 454 if (str[-1] == pdir[d2]) 455 break; 456 n += sp->s_frame[d2] - frames; 457 debuglog("overlap %s%c,%s%c = %x", stoc(s1), pdir[d1], 458 stoc(s2), pdir[d2], overlap[n]); 459 goto top; 460 case 'p': 461 sp = &board[i = ctos(input + 1)]; 462 debuglog("V %s %x/%d %d %x/%d %d %d %x", stoc(i), 463 sp->s_combo[BLACK].s, sp->s_level[BLACK], 464 sp->s_nforce[BLACK], 465 sp->s_combo[WHITE].s, sp->s_level[WHITE], 466 sp->s_nforce[WHITE], sp->s_wval, sp->s_flags); 467 debuglog("FB %s %x %x %x %x", stoc(i), 468 sp->s_fval[BLACK][0].s, sp->s_fval[BLACK][1].s, 469 sp->s_fval[BLACK][2].s, sp->s_fval[BLACK][3].s); 470 debuglog("FW %s %x %x %x %x", stoc(i), 471 sp->s_fval[WHITE][0].s, sp->s_fval[WHITE][1].s, 472 sp->s_fval[WHITE][2].s, sp->s_fval[WHITE][3].s); 473 goto top; 474 case 'e': /* e {b|w} [0-9] spot */ 475 str = input + 1; 476 if (*str >= '0' && *str <= '9') 477 n = *str++ - '0'; 478 else 479 n = 0; 480 sp = &board[i = ctos(str)]; 481 for (ep = sp->s_empty; ep; ep = ep->e_next) { 482 cbp = ep->e_combo; 483 if (n) { 484 if (cbp->c_nframes > n) 485 continue; 486 if (cbp->c_nframes != n) 487 break; 488 } 489 printcombo(cbp, tmp, sizeof(tmp)); 490 debuglog("%s", tmp); 491 } 492 goto top; 493 default: 494 debuglog("Options are:"); 495 debuglog("q - quit"); 496 debuglog("c - continue"); 497 debuglog("d# - set debug level to #"); 498 debuglog("p# - print values at #"); 499 goto top; 500 } 501 } 502 #endif /* DEBUG */ 503 504 /* 505 * Display debug info. 506 */ 507 void 508 debuglog(const char *fmt, ...) 509 { 510 va_list ap; 511 char buf[128]; 512 513 va_start(ap, fmt); 514 vsnprintf(buf, sizeof(buf), fmt, ap); 515 va_end(ap); 516 517 if (debugfp) 518 fprintf(debugfp, "%s\n", buf); 519 if (interactive) 520 dislog(buf); 521 else 522 fprintf(stderr, "%s\n", buf); 523 } 524 525 static void 526 misclog(const char *fmt, ...) 527 { 528 va_list ap; 529 char buf[128]; 530 531 va_start(ap, fmt); 532 vsnprintf(buf, sizeof(buf), fmt, ap); 533 va_end(ap); 534 535 if (debugfp) 536 fprintf(debugfp, "%s\n", buf); 537 if (interactive) 538 dislog(buf); 539 else 540 printf("%s\n", buf); 541 } 542 543 static void 544 quit(void) 545 { 546 if (interactive) { 547 bdisp(); /* show final board */ 548 cursfini(); 549 } 550 exit(0); 551 } 552 553 static void 554 quitsig(int dummy __unused) 555 { 556 quit(); 557 } 558 559 /* 560 * Die gracefully. 561 */ 562 void 563 panic(const char *fmt, ...) 564 { 565 va_list ap; 566 567 fprintf(stderr, "%s: ", prog); 568 va_start(ap, fmt); 569 vfprintf(stderr, fmt, ap); 570 va_end(ap); 571 fprintf(stderr, "\n"); 572 573 fputs("resign\n", stdout); 574 quit(); 575 } 576
Indexes created Mon Sep 29 21:09:56 GMT 2025