gnushogi/commondsp.c

   1 /*
   2  * FILE: commondsp.c
   3  *
   4  *     Common display routines for GNU Shogi.
   5  *
   6  * ----------------------------------------------------------------------
   7  * Copyright (c) 1993, 1994, 1995 Matthias Mutz
   8  * Copyright (c) 1999 Michael Vanier and the Free Software Foundation
   9  * Copyright (c) 2008, 2013, 2014 Yann Dirson and the Free Software Foundation
  10  *
  11  * GNU SHOGI is based on GNU CHESS
  12  *
  13  * Copyright (c) 1988, 1989, 1990 John Stanback
  14  * Copyright (c) 1992 Free Software Foundation
  15  *
  16  * This file is part of GNU SHOGI.
  17  *
  18  * GNU Shogi is free software; you can redistribute it and/or modify it
  19  * under the terms of the GNU General Public License as published by the
  20  * Free Software Foundation; either version 3 of the License,
  21  * or (at your option) any later version.
  22  *
  23  * GNU Shogi is distributed in the hope that it will be useful, but WITHOUT
  24  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  25  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  26  * for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License along
  29  * with GNU Shogi; see the file COPYING. If not, see
  30  * <http://www.gnu.org/licenses/>.
  31  * ----------------------------------------------------------------------
  32  *
  33  */
  34
  35 /* request *snprintf prototypes */
  36 #define _POSIX_C_SOURCE 200112L
  37 #include <stdio.h>
  38
  39 #if defined HAVE_GETTIMEOFDAY
  40 #include <sys/time.h>
  41 #endif
  42
  43 #include <ctype.h>
  44 #include <signal.h>
  45
  46 #include <sys/param.h>
  47 #include <sys/types.h>
  48 #include <sys/file.h>
  49
  50 #include "gnushogi.h"
  51
  52 char mvstr[4][6];
  53 int mycnt1, mycnt2;
  54 static char *InPtr;
  55 struct display *dsp = &raw_display;
  56
  57 short xboard = false;
  58
  59 #if defined(BOOKTEST)
  60
  61 void
  62 movealgbr(short m, char *s)
  63 {
  64     unsigned int f, t;
  65     short piece = 0, flag = 0;
  66
  67     if (m == 0)
  68     {
  69         strcpy(s, "none");
  70         return;
  71     }
  72
  73     f = (m >> 8) & 0x7f;
  74     t = m & 0xff;
  75
  76     if (f > NO_SQUARES)
  77     {
  78         piece = f - NO_SQUARES;
  79
  80         if (piece > NO_PIECES)
  81             piece -= NO_PIECES;
  82
  83         flag = (dropmask | piece);
  84     }
  85
  86     if (t & 0x80)
  87     {
  88         flag |= promote;
  89         t &= 0x7f;
  90     }
  91
  92     if (flag & dropmask)
  93     {
  94         *s = pxx[piece];
  95         s++;
  96         *s = '*';
  97         s++;
  98         *s = COL_NAME(column(t));
  99         s++;
 100         *s = ROW_NAME(row(t));
 101         s++;
 102     }
 103     else
 104     {
 105         *s = COL_NAME(column(f));
 106         s++;
 107         *s = ROW_NAME(row(f));
 108         s++;
 109         *s = COL_NAME(column(t));
 110         s++;
 111         *s = ROW_NAME(row(t));
 112         s++;
 113
 114         if (flag & promote)
 115         {
 116             *s = '+';
 117             s++;
 118         }
 119     }
 120
 121     if (m & 0x8000)
 122     {
 123         *s = '?';
 124         s++;
 125     }
 126
 127     *s = '\0';
 128 }
 129
 130 #endif /* BOOKTEST */
 131
 132
 133 /*
 134  * Generate move strings in different formats.
 135  *
 136  * INPUT:
 137  * - f                                  piece to be moved
 138  *   - 0 < f < NO_SQUARES                               source square
 139  *   - NO_SQUARES <= f NO_SQUARES + 2*NO_PIECES         dropped piece modulo NO_PIECES
 140  * - t & 0x7f                           target square
 141  * - t & 0x80                           promotion flag
 142  * - flag
 143  *   - if flag & dropmask, piece type encoded in flag & pmask
 144  *
 145  * FIXME: that makes 2 ways to specify drops and promotions, why ?
 146  *
 147  * OUTPUT:
 148  * - GLOBAL mvstr
 149  */
 150
 151 void
 152 algbr(short f, short t, short flag)
 153 {
 154     if (f > NO_SQUARES)
 155     {
 156         short piece;
 157
 158         piece = f - NO_SQUARES;
 159
 160         if (f > (NO_SQUARES + NO_PIECES))
 161             piece -= NO_PIECES;
 162
 163         flag = (dropmask | piece);
 164     }
 165
 166     if ((t & 0x80) != 0)
 167     {
 168         flag |= promote;
 169         t &= 0x7f;
 170     }
 171
 172     if ((f == t) && ((f != 0) || (t != 0)))
 173     {
 174         if (!XSHOGI) {
 175             dsp->Printf("error in algbr: FROM=TO=%d, flag=0x%4x\n", t, flag);
 176         }
 177
 178         mvstr[0][0] = mvstr[1][0] = mvstr[2][0] = mvstr[3][0] = '\0';
 179     }
 180     else if ((flag & dropmask) != 0)
 181     {
 182         short piece = flag & pmask;
 183
 184         mvstr[0][0] = pxx[piece];
 185         mvstr[0][1] = xboard ? '@' : '*';
 186         mvstr[0][2] = COL_NAME(column(t));
 187         mvstr[0][3] = ROW_NAME(row(t));
 188         mvstr[0][4] = '\0';
 189         strcpy(mvstr[1], mvstr[0]);
 190         strcpy(mvstr[2], mvstr[0]);
 191         strcpy(mvstr[3], mvstr[0]);
 192     }
 193     else if ((f != 0) || (t != 0))
 194     {
 195         /* pure coordinates notation */
 196         mvstr[0][0] = COL_NAME(column(f));
 197         mvstr[0][1] = ROW_NAME(row(f));
 198         mvstr[0][2] = COL_NAME(column(t));
 199         mvstr[0][3] = ROW_NAME(row(t));
 200         mvstr[0][4] = '\0';
 201
 202         /* algebraic notation without disambiguation */
 203         mvstr[1][0] = pxx[board[f]];
 204         mvstr[1][1] = mvstr[0][2];    /* to column */
 205         mvstr[1][2] = mvstr[0][3];    /* to row */
 206         mvstr[1][3] = '\0';
 207
 208         /* algebraic notation with row disambiguation */
 209         mvstr[2][0] = mvstr[1][0];
 210         mvstr[2][1] = mvstr[0][1];
 211         mvstr[2][2] = mvstr[0][2];    /* to column */
 212         mvstr[2][3] = mvstr[0][3];    /* to row */
 213         mvstr[2][4] = '\0';
 214
 215         /* algebraic notation with column disambiguation */
 216         strcpy(mvstr[3], mvstr[2]);
 217         mvstr[3][1] = mvstr[0][0];
 218
 219         if (flag & promote)
 220         {
 221             strcat(mvstr[0], "+");
 222             strcat(mvstr[1], "+");
 223             strcat(mvstr[2], "+");
 224             strcat(mvstr[3], "+");
 225         }
 226     }
 227     else
 228     {
 229         mvstr[0][0] = mvstr[1][0] = mvstr[2][0] = mvstr[3][0] = '\0';
 230     }
 231 }
 232
 233
 234 /*
 235  * Compare the string 's' to the list of legal moves available for the
 236  * opponent. If a match is found, make the move on the board.
 237  */
 238
 239 int
 240 VerifyMove(char *s, VerifyMove_mode iop, unsigned short *mv)
 241 {
 242     static short pnt, tempb, tempc, tempsf, tempst, cnt;
 243     static struct leaf xnode;
 244     struct leaf  *node;
 245     short i, l, local_flags;
 246     char buffer[60];
 247
 248     /* check and remove quality flags */
 249     for (i = local_flags = 0, l = strlen(s); i < l; i++)
 250     {
 251         switch(s[i])
 252         {
 253         case '?':
 254             local_flags |= badmove;
 255             s[i] = '\0';
 256             break;
 257
 258         case '!':
 259             local_flags |= goodmove;
 260             s[i] = '\0';
 261             break;
 262
 263 #ifdef EASY_OPENINGS
 264         case '~':
 265             local_flags |= difficult;
 266             s[i] = '\0';
 267             break;
 268 #endif
 269         }
 270     }
 271
 272     *mv = 0;
 273
 274     if (iop == UNMAKE_MODE)
 275     {
 276         UnmakeMove(opponent, &xnode, &tempb, &tempc, &tempsf, &tempst);
 277         return false;
 278     }
 279
 280     cnt = 0;
 281
 282     if (iop == VERIFY_AND_MAKE_MODE)
 283         generate_move_flags = true;
 284
 285     MoveList(opponent, 2, -1, true);
 286     generate_move_flags = false;
 287     pnt = TrPnt[2];
 288
 289     while (pnt < TrPnt[3])
 290     {
 291         node = &Tree[pnt++];
 292         algbr(node->f, node->t, (short) node->flags);
 293
 294         if ((strcmp(s, mvstr[0]) == 0)
 295             || (strcmp(s, mvstr[1]) == 0)
 296             || (strcmp(s, mvstr[2]) == 0)
 297             || (strcmp(s, mvstr[3]) == 0))
 298         {
 299             cnt++;
 300             xnode = *node;
 301         }
 302     }
 303
 304     if ((cnt == 1) && (xnode.score > DONTUSE))
 305     {
 306         short blocked;
 307
 308         MakeMove(opponent, &xnode, &tempb, &tempc,
 309                  &tempsf, &tempst, &INCscore);
 310
 311         if (SqAttacked(PieceList[opponent][0], computer, &blocked))
 312         {
 313             UnmakeMove(opponent, &xnode, &tempb, &tempc, &tempsf, &tempst);
 314             dsp->AlwaysShowMessage("Illegal move (in check): %s", s);
 315             return false;
 316         }
 317         else
 318         {
 319             if (iop == VERIFY_AND_TRY_MODE)
 320                 return true;
 321
 322             dsp->UpdateDisplay(xnode.f, xnode.t, 0, (short) xnode.flags);
 323             GameList[GameCnt].depth = GameList[GameCnt].score = 0;
 324             GameList[GameCnt].nodes = 0;
 325             ElapsedTime(COMPUTE_AND_INIT_MODE);
 326             GameList[GameCnt].time = (short) (et + 50)/100;
 327             GameList[GameCnt].flags |= local_flags;
 328
 329             if (TCflag)
 330             {
 331                 TimeControl.clock[opponent] -= et;
 332                 timeopp[oppptr] = et;
 333                 --TimeControl.moves[opponent];
 334             }
 335
 336             *mv = (xnode.f << 8) | xnode.t;
 337             algbr(xnode.f, xnode.t, false);
 338
 339             /* in force mode, check for mate conditions */
 340             if (flag.force)
 341             {
 342                 if (IsCheckmate(opponent ^ 1, -1, -1))
 343                 {
 344                     char buf[20];
 345
 346                     sprintf(buf, "%s mates!\n", ColorStr[opponent]);
 347                     dsp->ShowMessage(buf);
 348                     flag.mate = true;
 349                 }
 350             }
 351
 352             return true;
 353         }
 354     }
 355
 356     dsp->AlwaysShowMessage("Illegal move (no match): %s", s);
 357
 358     if (!XSHOGI && (cnt > 1))
 359     {
 360         sprintf(buffer, "Ambiguous Move %s!", s);
 361         dsp->ShowMessage(buffer);
 362     }
 363
 364     return false;
 365 }
 366
 367
 368 static int
 369 parser(char *f, short *fpiece)
 370 {
 371     int c1, r1, c2, r2;
 372     short i, p = false;
 373
 374     if (*f == '+')
 375         f++, p = true;
 376
 377     for (i = 1, *fpiece = no_piece; i < NO_PIECES; i++)
 378     {
 379         if (f[0] == pxx[i] || f[0] == qxx[i])
 380         {
 381             *fpiece = (p ? promoted[i] : unpromoted[i]);
 382             break;
 383         }
 384     }
 385
 386     if (f[1] == '*' || f[1] == '\'')
 387     {
 388         c2 = COL_NUM(f[2]);
 389         r2 = ROW_NUM(f[3]);
 390
 391         return ((NO_SQUARES + *fpiece) << 8) | locn(r2, c2);
 392     }
 393     else
 394     {
 395         c1 = COL_NUM(f[1]);
 396         r1 = ROW_NUM(f[2]);
 397         c2 = COL_NUM(f[3]);
 398         r2 = ROW_NUM(f[4]);
 399         p = (f[5] == '+') ? 0x80 : 0;
 400
 401         return (locn(r1, c1) << 8) | locn(r2, c2) | p;
 402     }
 403 }
 404
 405
 406 void
 407 skip()
 408 {
 409     while (*InPtr != ' ')
 410         InPtr++;
 411
 412     while (*InPtr == ' ')
 413         InPtr++;
 414 }
 415
 416
 417 void
 418 skipb()
 419 {
 420     while (*InPtr == ' ')
 421         InPtr++;
 422 }
 423
 424
 425 void RequestInputString(char* buffer, unsigned bufsize)
 426 {
 427     static char fmt[10];
 428     int ret = snprintf(fmt, sizeof(fmt), "%%%us", bufsize);
 429     if (ret < 0 ) {
 430         perror("RequestInputString snprintf");
 431         exit(1);
 432     }
 433     if (ret >= sizeof(fmt)) {
 434         fprintf(stderr,
 435                 "Insufficient format-buffer size in %s for bufsize=%u\n",
 436                 __FUNCTION__, bufsize);
 437         exit(1);
 438     }
 439     dsp->doRequestInputString(fmt, buffer);
 440 }
 441
 442
 443 static void
 444 GetGame(void)
 445 {
 446     FILE *fd;
 447     char fname[256], *p;
 448     int c, i, j;
 449     short sq;
 450     short side, isp;
 451
 452     if (savefile[0]) {
 453         strcpy(fname, savefile);
 454     } else {
 455         dsp->ShowMessage("Enter file name: ");
 456         RequestInputString(fname, sizeof(fname)-1);
 457     }
 458
 459     if (fname[0] == '\0')
 460         strcpy(fname, "shogi.000");
 461
 462     if ((fd = fopen(fname, "r")) != NULL)
 463     {
 464         NewGame();
 465         fgets(fname, 256, fd);
 466         computer = opponent = black;
 467         InPtr = fname;
 468         skip();
 469
 470         if (*InPtr == 'c')
 471             computer = white;
 472         else
 473             opponent = white;
 474
 475         /* FIXME: write a skipn() function so that we can get
 476          * 3 skips by doing skipn(3) */
 477         skip();
 478         skip();
 479         skip();
 480         Game50 = atoi(InPtr);
 481         skip();
 482         flag.force = (*InPtr == 'f');
 483         fgets(fname, 256, fd); /* empty */
 484         fgets(fname, 256, fd);
 485         InPtr = &fname[11];
 486         skipb();
 487         TCflag = atoi(InPtr);
 488         skip();
 489         InPtr += 14;
 490         skipb();
 491         OperatorTime = atoi(InPtr);
 492         fgets(fname, 256, fd);
 493         InPtr = &fname[11];
 494         skipb();
 495         TimeControl.clock[black] = atol(InPtr);
 496         skip();
 497         skip();
 498         TimeControl.moves[black] = atoi(InPtr);
 499         fgets(fname, 256, fd);
 500         InPtr = &fname[11];
 501         skipb();
 502         TimeControl.clock[white] = atol(InPtr);
 503         skip();
 504         skip();
 505         TimeControl.moves[white] = atoi(InPtr);
 506         fgets(fname, 256, fd); /* empty */
 507
 508         for (i = NO_ROWS - 1; i > -1; i--)
 509         {
 510             fgets(fname, 256, fd);
 511             p = &fname[2];
 512             InPtr = &fname[23];
 513
 514             for (j = 0; j < NO_COLS; j++)
 515             {
 516                 sq = i * NO_COLS + j;
 517                 isp = (*p == '+');
 518                 p++;
 519
 520                 if (*p == '-')
 521                 {
 522                     board[sq] = no_piece;
 523                     color[sq] = neutral;
 524                 }
 525                 else
 526                 {
 527                     for (c = 0; c < NO_PIECES; c++)
 528                     {
 529                         if (*p == pxx[c])
 530                         {
 531                             if (isp)
 532                                 board[sq] = promoted[c];
 533                             else
 534                                 board[sq] = unpromoted[c];
 535
 536                             color[sq] = white;
 537                         }
 538                     }
 539
 540                     for (c = 0; c < NO_PIECES; c++)
 541                     {
 542                         if (*p == qxx[c])
 543                         {
 544                             if (isp)
 545                                 board[sq] = promoted[c];
 546                             else
 547                                 board[sq] = unpromoted[c];
 548
 549                             color[sq] = black;
 550                         }
 551                     }
 552                 }
 553
 554                 p++;
 555                 Mvboard[sq] = atoi(InPtr);
 556                 skip();
 557             }
 558         }
 559
 560         fgets(fname, 256, fd);  /* empty */
 561         fgets(fname, 256, fd);  /* 9 8 7 ... */
 562         fgets(fname, 256, fd);  /* empty */
 563         fgets(fname, 256, fd);  /* p l n ... */
 564         ClearCaptured();
 565
 566         for (side = 0; side <= 1; side++)
 567         {
 568             fgets(fname, 256, fd);
 569             InPtr = fname;
 570             skip();
 571             skipb();
 572             Captured[side][pawn] = atoi(InPtr);
 573             skip();
 574 #ifndef MINISHOGI
 575             Captured[side][lance] = atoi(InPtr);
 576             skip();
 577             Captured[side][knight] = atoi(InPtr);
 578             skip();
 579 #endif
 580             Captured[side][silver] = atoi(InPtr);
 581             skip();
 582             Captured[side][gold] = atoi(InPtr);
 583             skip();
 584             Captured[side][bishop] = atoi(InPtr);
 585             skip();
 586             Captured[side][rook] = atoi(InPtr);
 587             skip();
 588             Captured[side][king] = atoi(InPtr);
 589         }
 590
 591         GameCnt = 0;
 592         flag.regularstart = true;
 593         Book = BOOKFAIL;
 594         fgets(fname, 256, fd); /* empty */
 595         fgets(fname, 256, fd);   /*  move score ... */
 596
 597         while (fgets(fname, 256, fd))
 598         {
 599             struct GameRec  *g;
 600             int side = computer;
 601
 602             side = side ^ 1;
 603             ++GameCnt;
 604             InPtr = fname;
 605             skipb();
 606             g = &GameList[GameCnt];
 607             g->gmove = parser(InPtr, &g->fpiece);
 608             skip();
 609             g->score = atoi(InPtr);
 610             skip();
 611             g->depth = atoi(InPtr);
 612             skip();
 613             g->nodes = atol(InPtr);
 614             skip();
 615             g->time = atol(InPtr);
 616             skip();
 617             g->flags = c = atoi(InPtr);
 618             skip();
 619             g->hashkey = strtol(InPtr, (char **) NULL, 16);
 620             skip();
 621             g->hashbd = strtol(InPtr, (char **) NULL, 16);
 622
 623             if (c & capture)
 624             {
 625                 short i, piece;
 626
 627                 skip();
 628
 629                 for (piece = no_piece, i = 0; i < NO_PIECES; i++)
 630                 {
 631                     if (pxx[i] == *InPtr)
 632                     {
 633                         piece = i;
 634                         break;
 635                     }
 636                 }
 637
 638                 skip();
 639                 g->color = ((*InPtr == 'W') ? white : black);
 640                 skip();
 641                 g->piece = (*InPtr == '+'
 642                             ? promoted[piece]
 643                             : unpromoted[piece]);
 644             }
 645             else
 646             {
 647                 g->color = neutral;
 648                 g->piece = no_piece;
 649             }
 650         }
 651
 652         if (TimeControl.clock[black] > 0)
 653             TCflag = true;
 654
 655         fclose(fd);
 656     }
 657
 658     ZeroRPT();
 659     InitializeStats();
 660     dsp->UpdateDisplay(0, 0, 1, 0);
 661     Sdepth = 0;
 662     hint = 0;
 663 }
 664
 665
 666 static void
 667 SaveGame(void)
 668 {
 669     FILE *fd;
 670     char fname[256];
 671     short sq, i, c, f, t;
 672     char p;
 673     short side, piece;
 674     char empty[2] = "\n";
 675
 676     if (savefile[0]) {
 677         strcpy(fname, savefile);
 678     } else {
 679         dsp->ShowMessage("Enter file name: ");
 680         RequestInputString(fname, sizeof(fname)-1);
 681     }
 682
 683     if (fname[0] == '\0')
 684         strcpy(fname, "shogi.000");
 685
 686     if ((fd = fopen(fname, "w")) != NULL)
 687     {
 688         char *b, *w;
 689         b = w = "Human   ";
 690
 691         if (computer == white)
 692             w = "computer";
 693
 694         if (computer == black)
 695             b = "computer";
 696
 697         fprintf(fd, "White %s Black %s %d %s\n", w, b, Game50,
 698                 flag.force ? "force" : "");
 699         fputs(empty, fd);
 700         fprintf(fd, "TimeControl %d Operator Time %d\n", TCflag, OperatorTime);
 701         fprintf(fd, "Black Clock %ld Moves %d\nWhite Clock %ld Moves %d\n",
 702                 TimeControl.clock[black], TimeControl.moves[black],
 703                 TimeControl.clock[white], TimeControl.moves[white]);
 704         fputs(empty, fd);
 705
 706         for (i = NO_ROWS - 1; i > -1; i--)
 707         {
 708             fprintf(fd, "%c ", ROW_NAME(i));
 709
 710             for (c = 0; c < NO_COLS; c++)
 711             {
 712                 sq = i * NO_COLS + c;
 713                 piece = board[sq];
 714                 p = is_promoted[piece] ? '+' : ' ';
 715                 fprintf(fd, "%c", p);
 716
 717                 switch(color[sq])
 718                 {
 719                 case white:
 720                     p = pxx[piece];
 721                     break;
 722
 723                 case black:
 724                     p = qxx[piece];
 725                     break;
 726
 727                 default:
 728                     p = '-';
 729                 }
 730
 731                 fprintf(fd, "%c", p);
 732             }
 733
 734             fprintf(fd, "  ");
 735
 736             for (f = i * NO_COLS; f < i * NO_COLS + NO_ROWS; f++)
 737                 fprintf(fd, " %d", Mvboard[f]);
 738
 739             fprintf(fd, "\n");
 740         }
 741
 742         fputs(empty, fd);
 743 #ifndef MINISHOGI
 744         fprintf(fd, "   9 8 7 6 5 4 3 2 1\n");
 745         fputs(empty, fd);
 746         fprintf(fd, "   p  l  n  s  g  b  r  k\n");
 747 #else
 748         fprintf(fd, "   5 4 3 2 1\n");
 749         fputs(empty, fd);
 750         fprintf(fd, "   p  s  g  b  r  k\n");
 751 #endif
 752
 753         for (side = 0; side <= 1; side++)
 754         {
 755             fprintf(fd, "%c", (side == black) ? 'B' : 'W');
 756             fprintf(fd, " %2d", Captured[side][pawn]);
 757 #ifndef MINISHOGI
 758             fprintf(fd, " %2d", Captured[side][lance]);
 759             fprintf(fd, " %2d", Captured[side][knight]);
 760 #endif
 761             fprintf(fd, " %2d", Captured[side][silver]);
 762             fprintf(fd, " %2d", Captured[side][gold]);
 763             fprintf(fd, " %2d", Captured[side][bishop]);
 764             fprintf(fd, " %2d", Captured[side][rook]);
 765             fprintf(fd, " %2d", Captured[side][king]);
 766             fprintf(fd, "\n");
 767         }
 768
 769         fputs(empty, fd);
 770         fputs("  move   score depth   nodes   time flags                         capture\n", fd);
 771
 772         for (i = 1; i <= GameCnt; i++)
 773         {
 774             struct GameRec  *g = &GameList[i];
 775
 776             f = g->gmove >> 8;
 777             t = (g->gmove & 0xFF);
 778             algbr(f, t, g->flags);
 779
 780             fprintf(fd, "%c%c%-5s %6d %5d %7ld %6ld %5d  0x%08lx 0x%08lx",
 781                     ((f > NO_SQUARES)
 782                      ? ' '
 783                      : (is_promoted[g->fpiece] ? '+' : ' ')),
 784                     pxx[g->fpiece],
 785                     ((f > NO_SQUARES) ? &mvstr[0][1] : mvstr[0]),
 786                     g->score, g->depth,
 787                     g->nodes, g->time, g->flags,
 788                     g->hashkey, g->hashbd);
 789
 790             if (g->piece != no_piece)
 791             {
 792                 fprintf(fd, "  %c %s %c\n",
 793                         pxx[g->piece], ColorStr[g->color],
 794                         (is_promoted[g->piece] ? '+' : ' '));
 795             }
 796             else
 797             {
 798                 fprintf(fd, "\n");
 799             }
 800         }
 801
 802         fclose(fd);
 803
 804         dsp->ShowMessage("Game saved");
 805     }
 806     else
 807     {
 808         dsp->ShowMessage("Could not open file");
 809     }
 810 }
 811
 812
 813 /*
 814  * GetXGame, SaveXGame and BookGame used to only be defined if
 815  * xshogi wasn't defined -- wonder why?
 816  */
 817
 818 static void
 819 GetXGame(void)
 820 {
 821     FILE *fd;
 822     char fname[256], *p;
 823     int c, i, j;
 824     short sq;
 825     short side, isp;
 826
 827     dsp->ShowMessage("Enter file name: ");
 828     RequestInputString(fname, sizeof(fname)-1);
 829
 830     if (fname[0] == '\0')
 831         strcpy(fname, "xshogi.position.read");
 832
 833     if ((fd = fopen(fname, "r")) != NULL)
 834     {
 835         NewGame();
 836         flag.regularstart = false;
 837         Book = false;
 838
 839         /* xshogi position file ... */
 840         fgets(fname, 256, fd);
 841
 842 #ifdef notdef
 843         fname[6] = '\0';
 844
 845         if (strcmp(fname, "xshogi"))
 846             return;
 847 #endif
 848
 849         /* -- empty line -- */
 850         fgets(fname, 256, fd);
 851         /* -- empty line -- */
 852         fgets(fname, 256, fd);
 853
 854         for (i = NO_ROWS - 1; i > -1; i--)
 855         {
 856             fgets(fname, 256, fd);
 857             p = fname;
 858
 859             for (j = 0; j < NO_COLS; j++)
 860             {
 861                 sq = i * NO_COLS + j;
 862                 isp = (*p == '+');
 863                 p++;
 864
 865                 if (*p == '.')
 866                 {
 867                     board[sq] = no_piece;
 868                     color[sq] = neutral;
 869                 }
 870                 else
 871                 {
 872                     for (c = 0; c < NO_PIECES; c++)
 873                     {
 874                         if (*p == qxx[c])
 875                         {
 876                             if (isp)
 877                                 board[sq] = promoted[c];
 878                             else
 879                                 board[sq] = unpromoted[c];
 880
 881                             color[sq] = white;
 882                         }
 883                     }
 884
 885                     for (c = 0; c < NO_PIECES; c++)
 886                     {
 887                         if (*p == pxx[c])
 888                         {
 889                             if (isp)
 890                                 board[sq] = promoted[c];
 891                             else
 892                                 board[sq] = unpromoted[c];
 893
 894                             color[sq] = black;
 895                         }
 896                     }
 897                 }
 898
 899                 p++;
 900             }
 901         }
 902
 903         ClearCaptured();
 904
 905         for (side = 0; side <= 1; side++)
 906         {
 907             fgets(fname, 256, fd);
 908             InPtr = fname;
 909             Captured[side][pawn]   = atoi(InPtr);
 910             skip();
 911 #ifndef MINISHOGI
 912             Captured[side][lance]  = atoi(InPtr);
 913             skip();
 914             Captured[side][knight] = atoi(InPtr);
 915             skip();
 916 #endif
 917             Captured[side][silver] = atoi(InPtr);
 918             skip();
 919             Captured[side][gold]   = atoi(InPtr);
 920             skip();
 921             Captured[side][bishop] = atoi(InPtr);
 922             skip();
 923             Captured[side][rook]   = atoi(InPtr);
 924             skip();
 925             Captured[side][king]   = atoi(InPtr);
 926         }
 927
 928         if (fgets(fname, 256, fd) != NULL && strncmp(fname, "white", 5) == 0)
 929         {
 930             computer = black;
 931             opponent = white;
 932             xwndw = BXWNDW;
 933         }
 934
 935         fclose(fd);
 936     }
 937
 938     Game50 = 1;
 939     ZeroRPT();
 940     InitializeStats();
 941     dsp->UpdateDisplay(0, 0, 1, 0);
 942     Sdepth = 0;
 943     hint = 0;
 944 }
 945
 946
 947 static void
 948 SaveXGame(void)
 949 {
 950     FILE *fd;
 951     char fname[256], *p;
 952     int i, j;
 953     short sq, piece;
 954     short side, isp;
 955
 956     dsp->ShowMessage("Enter file name: ");
 957     RequestInputString(fname, sizeof(fname)-1);
 958
 959     if (fname[0] == '\0')
 960         strcpy(fname, "xshogi.position.read");
 961
 962     if ((fd = fopen(fname, "w")) != NULL)
 963     {
 964         fputs("# xshogi position file -- \n", fd);
 965         fputs("\n", fd);
 966         fputs("\n", fd);
 967
 968         for (i = NO_ROWS - 1; i > -1; i--)
 969         {
 970             p = fname;
 971
 972             for (j = 0; j < NO_COLS; j++)
 973             {
 974                 sq = i * NO_COLS + j;
 975                 piece = board[sq];
 976                 isp = is_promoted[piece];
 977                 *p = (isp ? '+' : ' ');
 978                 p++;
 979
 980                 if (piece == no_piece)
 981                     *p = '.';
 982                 else if (color[sq] == white)
 983                     *p = qxx[piece];
 984                 else
 985                     *p = pxx[piece];
 986
 987                 p++;
 988             }
 989
 990             *p++ = '\n';
 991             *p++ = '\0';
 992             fputs(fname, fd);
 993         }
 994
 995         for (side = 0; side <= 1; side++)
 996         {
 997             sprintf(fname,
 998 #ifndef MINISHOGI
 999                     "%d %d %d %d %d %d %d %d\n",
1000 #else
1001                     "%d %d %d %d %d %d\n",
1002 #endif
1003                     Captured[side][pawn],
1004 #ifndef MINISHOGI
1005                     Captured[side][lance],
1006                     Captured[side][knight],
1007 #endif
1008                     Captured[side][silver],
1009                     Captured[side][gold],
1010                     Captured[side][bishop],
1011                     Captured[side][rook],
1012                     Captured[side][king]);
1013
1014             fputs(fname, fd);
1015         }
1016
1017         if (computer == black)
1018             fputs("white to play\n", fd);
1019         else
1020             fputs("black to play\n", fd);
1021
1022         fclose(fd);
1023     }
1024 }
1025
1026
1027 static void
1028 BookSave(void)
1029 {
1030     FILE *fd;
1031     char fname[256], sflags[4];
1032     short i, j, f, t;
1033
1034     if (savefile[0]) {
1035         strcpy(fname, savefile);
1036     } else {
1037         /* Enter file name */
1038         dsp->ShowMessage("Enter file name: ");
1039         RequestInputString(fname, sizeof(fname)-1);
1040     }
1041
1042     if (fname[0] == '\0') {
1043         dsp->AlwaysShowMessage("aborting book save");
1044         return;
1045     }
1046
1047     if ((fd = fopen(fname, "a")) != NULL)
1048     {
1049         fprintf(fd, "#\n");
1050
1051         for (i = 1; i <= GameCnt; i++)
1052         {
1053             struct GameRec  *g = &GameList[i];
1054             char mvnr[20], mvs[20];
1055
1056             if (i % 2)
1057                 sprintf(mvnr, "%d.", (i + 1)/2);
1058             else
1059                 strcpy(mvnr, "");
1060
1061             f = g->gmove >> 8;
1062             t = (g->gmove & 0xFF);
1063             algbr(f, t, g->flags);
1064             j = 0;
1065
1066             /* determine move quality string */
1067             if (g->flags & goodmove)
1068                 sflags[j++] = '!';
1069
1070             if (g->flags & badmove)
1071                 sflags[j++] = '?';
1072
1073 #ifdef EASY_OPENINGS
1074             if (g->flags & difficult)
1075                 sflags[j++] = '~';
1076 #endif
1077
1078             sflags[j] = '\0';
1079
1080             /* determine move string */
1081             if (f > NO_SQUARES)
1082             {
1083                 sprintf(mvs, "%s%s ", &mvstr[0][1], sflags);
1084             }
1085             else
1086             {
1087                 sprintf(mvs, "%c%c%c%c%c%s%s ",
1088                         mvstr[0][0], mvstr[0][1],
1089                         (g->flags & capture) ? 'x' : '-',
1090                         mvstr[0][2], mvstr[0][3],
1091                         (mvstr[0][4] == '+') ? "+" : "",
1092                         sflags);
1093             }
1094
1095             fprintf(fd, "%s%s%c%s",
1096                     mvnr,
1097                     (f > NO_SQUARES
1098                      ? ""
1099                      : (is_promoted[g->fpiece] ? "+" : "")),
1100                     pxx[g->fpiece],
1101                     mvs);
1102
1103             if ((i % 10) == 0)
1104                 fprintf(fd, "\n");
1105         }
1106
1107         if ((i % 10) != 1)
1108             fprintf(fd, "\n");
1109
1110         fclose(fd);
1111
1112         dsp->ShowMessage("Game saved");
1113     }
1114     else
1115     {
1116         dsp->ShowMessage("Could not open file");
1117     }
1118 }
1119
1120
1121 void
1122 ListGame(void)
1123 {
1124     FILE *fd;
1125     short i, f, t;
1126     time_t when;
1127     char fname[256], dbuf[256];
1128
1129     if (listfile[0])
1130     {
1131         strcpy(fname, listfile);
1132     }
1133     else
1134     {
1135         time(&when);
1136         strncpy(dbuf, ctime(&when), 20);
1137         dbuf[7]  = '\0';
1138         dbuf[10] = '\0';
1139         dbuf[13] = '\0';
1140         dbuf[16] = '\0';
1141         dbuf[19] = '\0';
1142
1143         /* use format "CL.Jan01-020304B" when
1144            date is Jan 1
1145            time is 02:03:04
1146            program played white */
1147
1148         sprintf(fname, "CL.%s%s-%s%s%s%c",
1149                 dbuf + 4, dbuf + 8, dbuf + 11, dbuf + 14,
1150                 dbuf + 17, ColorStr[computer][0]);
1151
1152         /* replace space padding with 0 */
1153         for (i = 0; fname[i] != '\0'; i++)
1154         {
1155             if (fname[i] == ' ')
1156                 fname[i] = '0';
1157         }
1158     }
1159
1160     fd = fopen(fname, "w");
1161
1162     if (!fd)
1163     {
1164         printf("Open failure for file: %s", fname);
1165         exit(1);
1166     }
1167
1168     fprintf(fd, "gnushogi %s game\n", PACKAGE_VERSION);
1169     fputs("         score  depth   nodes  time         ", fd);
1170     fputs("         score  depth   nodes  time\n", fd);
1171
1172     for (i = 1; i <= GameCnt; i++)
1173     {
1174         f = GameList[i].gmove >> 8;
1175         t = (GameList[i].gmove & 0xFF);
1176         algbr(f, t, GameList[i].flags);
1177
1178         if (GameList[i].flags & book)
1179         {
1180             fprintf(fd, "%c%c%-5s  %5d    Book%7ld %5ld",
1181                     ((f > NO_SQUARES)
1182                      ? ' '
1183                      : (is_promoted[GameList[i].fpiece] ? '+' : ' ')),
1184                     pxx[GameList[i].fpiece],
1185                     ((f > NO_SQUARES)
1186                      ? &mvstr[0][1] : mvstr[0]),
1187                     GameList[i].score,
1188                     GameList[i].nodes,
1189                     GameList[i].time);
1190         }
1191         else
1192         {
1193             fprintf(fd, "%c%c%-5s  %5d     %2d %7ld %5ld",
1194                     (f > NO_SQUARES
1195                      ? ' '
1196                      : (is_promoted[GameList[i].fpiece] ? '+' : ' ')),
1197                     pxx[GameList[i].fpiece],
1198                     (f > NO_SQUARES ? &mvstr[0][1] : mvstr[0]),
1199                     GameList[i].score, GameList[i].depth,
1200                     GameList[i].nodes, GameList[i].time);
1201         }
1202
1203         if ((i % 2) == 0)
1204         {
1205             fprintf(fd, "\n");
1206         }
1207         else
1208         {
1209             fprintf(fd, "         ");
1210         }
1211     }
1212
1213     fprintf(fd, "\n\n");
1214
1215     if (GameList[GameCnt].flags & draw)
1216     {
1217         fprintf(fd, "Draw %s\n", DRAW);
1218
1219         if (DRAW == DRAW_REPETITION)
1220         {
1221             short j;
1222
1223             fprintf(fd, "repetition by positions ");
1224
1225             for (j = GameCnt - 1; j >= Game50; j -= 2)
1226             {
1227                 if (GameList[j].hashkey == hashkey &&
1228                     GameList[j].hashbd == hashbd)
1229                     fprintf(fd, "%d ", j);
1230             }
1231
1232             fprintf(fd, "\n");
1233         }
1234     }
1235     else if (GameList[GameCnt].score == -(SCORE_LIMIT + 999))
1236     {
1237         fprintf(fd, "%s\n", ColorStr[player ]);
1238     }
1239     else if (GameList[GameCnt].score == (SCORE_LIMIT + 998))
1240     {
1241         fprintf(fd, "%s\n", ColorStr[player ^ 1]);
1242     }
1243
1244     fclose(fd);
1245 }
1246
1247
1248 static void
1249 FlagMove(char c)
1250 {
1251     switch(c)
1252     {
1253     case '?' :
1254         GameList[GameCnt].flags |= badmove;
1255         break;
1256
1257     case '!' :
1258         GameList[GameCnt].flags |= goodmove;
1259         break;
1260
1261 #ifdef EASY_OPENINGS
1262     case '~' :
1263         GameList[GameCnt].flags |= difficult;
1264         break;
1265 #endif
1266     }
1267 }
1268
1269
1270 /*
1271  * Undo the most recent half-move.
1272  */
1273
1274 static void
1275 Undo(void)
1276 {
1277     short f, t;
1278
1279     f = GameList[GameCnt].gmove >> 8;
1280     t = GameList[GameCnt].gmove & 0x7F;
1281
1282     if (f > NO_SQUARES)
1283     {
1284         /* the move was a drop */
1285         Captured[color[t]][board[t]]++;
1286         board[t] = no_piece;
1287         color[t] = neutral;
1288         Mvboard[t]--;
1289     }
1290     else
1291     {
1292         if (GameList[GameCnt].flags & promote)
1293             board[f] = unpromoted[board[t]];
1294         else
1295             board[f] = board[t];
1296
1297         color[f] = color[t];
1298         board[t] = GameList[GameCnt].piece;
1299         color[t] = GameList[GameCnt].color;
1300
1301         if (board[t] != no_piece)
1302             Captured[color[f]][unpromoted[board[t]]]--;
1303
1304         if (color[t] != neutral)
1305             Mvboard[t]--;
1306
1307         Mvboard[f]--;
1308     }
1309
1310     InitializeStats();
1311
1312     if (TCflag && (TCmoves > 1))
1313         ++TimeControl.moves[color[f]];
1314
1315     hashkey = GameList[GameCnt].hashkey;
1316     hashbd = GameList[GameCnt].hashbd;
1317     GameCnt--;
1318     computer = computer ^ 1;
1319     opponent = opponent ^ 1;
1320     flag.mate = false;
1321     Sdepth = 0;
1322     player = player ^ 1;
1323     dsp->ShowSidetoMove();
1324     dsp->UpdateDisplay(0, 0, 1, 0);
1325
1326     if (flag.regularstart)
1327         Book = false;
1328 }
1329
1330
1331 static void
1332 TestSpeed(void(*f)(short side, short ply,
1333                    short in_check, short blockable),
1334           unsigned j)
1335 {
1336 #ifdef test
1337     unsigned jj;
1338 #endif
1339
1340     unsigned i;
1341     long cnt, t1, t2;
1342
1343 #ifdef HAVE_GETTIMEOFDAY
1344     struct timeval tv;
1345 #endif
1346
1347 #ifdef HAVE_GETTIMEOFDAY
1348     gettimeofday(&tv, NULL);
1349     t1 = (tv.tv_sec*100 + (tv.tv_usec/10000));
1350 #else
1351     t1 = time(0);
1352 #endif
1353
1354     for (i = 0; i < j; i++)
1355     {
1356         f(opponent, 2, -1, true);
1357
1358 #ifdef test
1359         for (jj = TrPnt[2]; i < TrPnt[3]; jj++)
1360         {
1361             if (!pick(jj, TrPnt[3] - 1))
1362                 break;
1363         }
1364 #endif
1365     }
1366
1367 #ifdef HAVE_GETTIMEOFDAY
1368     gettimeofday(&tv, NULL);
1369     t2 = (tv.tv_sec * 100 + (tv.tv_usec / 10000));
1370 #else
1371     t2 = time(0);
1372 #endif
1373
1374     cnt = j * (TrPnt[3] - TrPnt[2]);
1375
1376     if (t2 - t1)
1377         et = (t2 - t1);
1378     else
1379         et = 1;
1380
1381     dsp->ShowNodeCnt(cnt);
1382 }
1383
1384
1385 static void
1386 TestPSpeed(short(*f) (short side), unsigned j)
1387 {
1388     unsigned i;
1389     long cnt, t1, t2;
1390 #ifdef HAVE_GETTIMEOFDAY
1391     struct timeval tv;
1392 #endif
1393
1394 #ifdef HAVE_GETTIMEOFDAY
1395     gettimeofday(&tv, NULL);
1396     t1 = (tv.tv_sec * 100 + (tv.tv_usec / 10000));
1397 #else
1398     t1 = time(0);
1399 #endif
1400
1401     for (i = 0; i < j; i++)
1402         (void) f(opponent);
1403
1404 #ifdef HAVE_GETTIMEOFDAY
1405     gettimeofday(&tv, NULL);
1406     t2 = (tv.tv_sec * 100 + (tv.tv_usec / 10000));
1407 #else
1408     t2 = time(0);
1409 #endif
1410
1411     cnt = j;
1412
1413     if (t2 - t1)
1414         et = (t2 - t1);
1415     else
1416         et = 1;
1417
1418     dsp->ShowNodeCnt(cnt);
1419 }
1420
1421
1422 static void
1423 SetOppTime(char *time)
1424 {
1425     int m, t;
1426
1427     t = (int)strtol(time, &time, 10);
1428
1429     if (*time == ':')
1430     {
1431         time++;
1432         /* FIXME: sec is parsed but ignored */
1433         (void)strtol(time, &time, 10);
1434     }
1435
1436     m = (int)strtol(time, &time, 10);
1437
1438     if (t)
1439         TimeControl.clock[opponent] = t;
1440
1441     if (m)
1442         TimeControl.moves[opponent] = m;
1443
1444     ElapsedTime(COMPUTE_AND_INIT_MODE);
1445
1446     if (XSHOGI)
1447     {
1448         /* just to inform xshogi about availability of otime command */
1449         printf("otime %d %d\n", t, m);
1450     }
1451 }
1452
1453
1454 static void
1455 SetMachineTime(char *time)
1456 {
1457     int m, t;
1458
1459     t = (int)strtol(time, &time, 10);
1460
1461     if (*time == ':')
1462     {
1463         time++;
1464         /* FIXME: sec is parsed but ignored */
1465         (void)strtol(time, &time, 10);
1466     }
1467
1468     m = (int)strtol(time, &time, 10);
1469
1470     if (t)
1471         TimeControl.clock[computer] = t;
1472
1473     if (m)
1474         TimeControl.moves[computer] = m;
1475
1476     ElapsedTime(COMPUTE_AND_INIT_MODE);
1477
1478     if (XSHOGI)
1479     {
1480         /* just to inform xshogi about availability of time command */
1481         printf("time %d %d\n", t, m);
1482     }
1483 }
1484
1485
1486 /* FIXME!  This is truly the function from hell! */
1487
1488 /*
1489  * Process the user's command. If easy mode is OFF (the computer is thinking
1490  * on opponents time) and the program is out of book, then make the 'hint'
1491  * move on the board and call SelectMove() to find a response. The user
1492  * terminates the search by entering a command. If the opponent does not make
1493  * the hint move, then set Sdepth to zero.
1494  */
1495
1496 void
1497 InputCommand(char *command)
1498 {
1499 #ifdef QUIETBACKGROUND
1500     short have_shown_prompt = false;
1501 #endif
1502     short ok, done, is_move = false;
1503     unsigned short mv;
1504     char s[80], sx[80];
1505
1506     ok = flag.quit = done = false;
1507     player = opponent;
1508
1509 #if ttblsz
1510     if (TTadd > ttbllimit)
1511         ZeroTTable();
1512 #endif
1513
1514     if ((hint > 0) && !flag.easy && !flag.force)
1515     {
1516         /*
1517          * A hint move for the player is available.  Compute a move for the
1518          * opponent in background mode assuming that the hint move will be
1519          * selected by the player.
1520          */
1521
1522         ft = time0; /* Save reference time for the player. */
1523         fflush(stdout);
1524         algbr((short) hint >> 8, (short) hint & 0xff, false);
1525         strcpy(s, mvstr[0]);
1526
1527         if (flag.post)
1528             dsp->GiveHint();
1529
1530         /* do the hint move */
1531         if (VerifyMove(s, VERIFY_AND_TRY_MODE, &mv))
1532         {
1533             Sdepth = 0;
1534
1535 #ifdef QUIETBACKGROUND
1536             dsp->ShowPrompt();
1537             have_shown_prompt = true;
1538 #endif /* QUIETBACKGROUND */
1539
1540             /* Start computing a move until the search is interrupted. */
1541
1542 #ifdef INTERRUPT_TEST
1543             itime0 = 0;
1544 #endif
1545
1546             /* would love to put null move in here */
1547             /* after we make the hint move make a 2 ply search
1548              * with both plys our moves */
1549             /* think on opponents time */
1550             SelectMove(computer, BACKGROUND_MODE);
1551
1552 #ifdef INTERRUPT_TEST
1553             ElapsedTime(COMPUTE_INTERRUPT_MODE);
1554
1555             if (itime0 == 0)
1556             {
1557                 printf("searching not terminated by interrupt!\n");
1558             }
1559             else
1560             {
1561                 printf("elapsed time from interrupt to "
1562                        "terminating search: %ld\n", it);
1563             }
1564 #endif
1565
1566             /* undo the hint and carry on */
1567             VerifyMove(s, UNMAKE_MODE, &mv);
1568             Sdepth = 0;
1569         }
1570
1571         time0 = ft; /* Restore reference time for the player. */
1572     }
1573
1574     while(!(ok || flag.quit || done))
1575     {
1576         player = opponent;
1577
1578 #ifdef QUIETBACKGROUND
1579         if (!have_shown_prompt)
1580         {
1581 #endif /* QUIETBACKGROUND */
1582
1583             dsp->ShowPrompt();
1584
1585 #ifdef QUIETBACKGROUND
1586         }
1587
1588         have_shown_prompt = false;
1589 #endif /* QUIETBACKGROUND */
1590
1591         if (command == NULL) {
1592             int eof = dsp->GetString(sx);
1593             if (eof)
1594                 dsp->ExitShogi();
1595         } else {
1596             strcpy(sx, command);
1597             done = true;
1598         }
1599
1600         /* extract first word */
1601         if (sscanf(sx, "%s", s) < 1)
1602             continue;
1603
1604         if (strcmp(s, "bd") == 0)   /* bd -- display board */
1605         {
1606             /* FIXME: Hack alert! */
1607             short old_xshogi = XSHOGI;
1608
1609             if (old_xshogi)
1610                 display_type = DISPLAY_RAW;
1611
1612             dsp->ClearScreen();
1613             dsp->UpdateDisplay(0, 0, 1, 0);
1614
1615             if (old_xshogi)
1616                 display_type = DISPLAY_X;
1617         }
1618         else if (strcmp(s, "post") == 0)
1619         {
1620             flag.post = (xboard ? 1 : !flag.post);
1621         }
1622         else if (strcmp(s, "nopost") == 0)
1623         {
1624             flag.post = 0;
1625         }
1626 #ifdef MINISHOGI
1627         else if (strcmp(s, "variant") == 0)
1628         {   /* only variant we play is minishogi */
1629             printf("setup (P.BR.S...G.+.++.+Kp.br.s...g.+.++.+k) 5x5+5_shogi rbsgk/4p/5/P4/KGSBR [-] w 0 1\n");
1630         }
1631 #endif
1632         else if (strcmp(s, "alg") == 0 ||
1633                  strcmp(s, "accepted") == 0 || strcmp(s, "rejected") == 0 ||
1634                  strcmp(s, "variant") == 0 || strcmp(s, "computer") == 0)
1635         {
1636             /* noop */ ;
1637         }
1638         else if ((strcmp(s, "quit") == 0) ||
1639                  (strcmp(s, "exit") == 0))
1640         {
1641             flag.quit = true;
1642         }
1643         else if (strcmp(s, "xboard") == 0)
1644         {
1645             xboard = true;
1646             strcpy(ColorStr[0], "White");
1647             strcpy(ColorStr[1], "Black");
1648         }
1649         else if (strcmp(s, "protover") == 0)
1650         {
1651             printf("feature myname=\"GNU %s %s\" ",
1652 #ifdef MINISHOGI
1653                    "MiniShogi",
1654 #else
1655                    "Shogi",
1656 #endif
1657                    PACKAGE_VERSION
1658                 );
1659             printf("variants=\"%s\" ",
1660 #ifdef MINISHOGI
1661                    "5x5+5_shogi,minishogi"
1662 #else
1663                    "shogi"
1664 #endif
1665                 );
1666             printf("debug=1 setboard=0 sigint=0 done=1\n");
1667         }
1668         else if ((strcmp(s, "set") == 0) ||
1669                  (strcmp(s, "edit") == 0))
1670         {
1671             dsp->EditBoard();
1672         }
1673         else if (strcmp(s, "setup") == 0)
1674         {
1675             dsp->SetupBoard();
1676         }
1677         else if (strcmp(s, "first") == 0)
1678         {
1679             ok = true;
1680         }
1681         else if (strcmp(s, "go") == 0)
1682         {
1683             ok = true;
1684             flag.force = false;
1685
1686             if (computer == black)
1687             {
1688                 computer = white;
1689                 opponent = black;
1690             }
1691             else
1692             {
1693                 computer = black;
1694                 opponent = white;
1695             }
1696         }
1697         else if (strcmp(s, "help") == 0)
1698         {
1699             dsp->help();
1700         }
1701         else if (strcmp(s, "material") == 0)
1702         {
1703             flag.material = !flag.material;
1704         }
1705         else if (strcmp(s, "force") == 0)
1706         {
1707             if (XSHOGI)
1708             {
1709                 flag.force = true;
1710                 flag.bothsides = false;
1711             }
1712             else
1713             {
1714                 flag.force = !flag.force;
1715                 flag.bothsides = false;
1716             }
1717         }
1718         else if (strcmp(s, "book") == 0)
1719         {
1720             Book = Book ? 0 : BOOKFAIL;
1721         }
1722         else if (strcmp(s, "new") == 0)
1723         {
1724             NewGame();
1725             dsp->UpdateDisplay(0, 0, 1, 0);
1726         }
1727         else if (strcmp(s, "list") == 0)
1728         {
1729             ListGame();
1730         }
1731         else if (strcmp(s, "level") == 0)
1732         {
1733             dsp->SelectLevel(sx + strlen("level"));
1734         }
1735         else if (strcmp(s, "clock") == 0)
1736         {
1737             dsp->SelectLevel(sx + strlen("clock"));
1738         }
1739         else if (strcmp(s, "hash") == 0)
1740         {
1741             flag.hash = !flag.hash;
1742         }
1743         else if (strcmp(s, "gamein") == 0)
1744         {
1745             flag.gamein = !flag.gamein;
1746         }
1747         else if (strcmp(s, "beep") == 0)
1748         {
1749             flag.beep = !flag.beep;
1750         }
1751         else if (strcmp(s, "time") == 0)
1752         {
1753             SetMachineTime(sx + strlen("time"));
1754         }
1755         else if ((strcmp(s, "otime") == 0) ||
1756                  (xboard && (strcmp(s, "otim")) == 0))
1757         {
1758             SetOppTime(sx + strlen("otime"));
1759         }
1760         else if (strcmp(s, "Awindow") == 0)
1761         {
1762             dsp->ChangeAlphaWindow();
1763         }
1764         else if (strcmp(s, "Bwindow") == 0)
1765         {
1766             dsp->ChangeBetaWindow();
1767         }
1768         else if (strcmp(s, "rcptr") == 0)
1769         {
1770             flag.rcptr = !flag.rcptr;
1771         }
1772         else if (strcmp(s, "hint") == 0)
1773         {
1774             dsp->GiveHint();
1775         }
1776         else if (strcmp(s, "both") == 0)
1777         {
1778             flag.bothsides = !flag.bothsides;
1779             flag.force = false;
1780             Sdepth = 0;
1781             ElapsedTime(COMPUTE_AND_INIT_MODE);
1782             SelectMove(opponent, FOREGROUND_MODE);
1783             ok = true;
1784         }
1785         else if (strcmp(s, "reverse") == 0)
1786         {
1787             flag.reverse = !flag.reverse;
1788             dsp->ClearScreen();
1789             dsp->UpdateDisplay(0, 0, 1, 0);
1790         }
1791         else if (strcmp(s, "switch") == 0)
1792         {
1793             computer = computer ^ 1;
1794             opponent = opponent ^ 1;
1795             xwndw = (computer == black) ? WXWNDW : BXWNDW;
1796             flag.force = false;
1797             Sdepth = 0;
1798             ok = true;
1799             dsp->UpdateDisplay(0, 0, 1, 0);
1800         }
1801         else if (xboard ? strcmp(s, "white") == 0 : strcmp(s, "black") == 0)
1802         {
1803             computer = white;
1804             opponent = black;
1805             xwndw = WXWNDW;
1806             flag.force = false;
1807             Sdepth = 0;
1808
1809             /*
1810              * ok = true; don't automatically start with black command
1811              */
1812         }
1813         else if (xboard ? strcmp(s, "black") == 0 : strcmp(s, "white") == 0)
1814         {
1815             computer = black;
1816             opponent = white;
1817             xwndw = BXWNDW;
1818             flag.force = false;
1819             Sdepth = 0;
1820
1821             /*
1822              * ok = true; don't automatically start with white command
1823              */
1824         }
1825         else if (strcmp(s, "undo") == 0 && GameCnt > 0)
1826         {
1827             Undo();
1828         }
1829         else if (strcmp(s, "remove") == 0 && GameCnt > 1)
1830         {
1831             Undo();
1832             Undo();
1833         }
1834         /* CHECKME: are these next three correct? */
1835         else if (!XSHOGI && strcmp(s, "xget") == 0)
1836         {
1837             GetXGame();
1838         }
1839         else if (!XSHOGI && strcmp(s, "xsave") == 0)
1840         {
1841             SaveXGame();
1842         }
1843         else if (!XSHOGI && strcmp(s, "bsave") == 0)
1844         {
1845             BookSave();
1846         }
1847 #ifdef EASY_OPENINGS
1848         else if ((strcmp(s, "?") == 0) ||
1849                  (strcmp(s, "!") == 0) ||
1850                  (strcmp(s, "~") == 0))
1851 #else
1852         else if ((strcmp(s, "?") == 0) ||
1853                  (strcmp(s, "!") == 0))
1854 #endif
1855         {
1856             FlagMove(*s);
1857         }
1858         else if (strcmp(s, "get") == 0)
1859         {
1860             GetGame();
1861         }
1862         else if (strcmp(s, "save") == 0)
1863         {
1864             SaveGame();
1865         }
1866         else if (strcmp(s, "depth") == 0)
1867         {
1868             dsp->ChangeSearchDepth(sx + strlen("depth"));
1869         }
1870         else if (strcmp(s, "sd") == 0)
1871         {
1872             dsp->ChangeSearchDepth(sx + strlen("sd"));
1873         }
1874         else if (strcmp(s, "hashdepth") == 0)
1875         {
1876             dsp->ChangeHashDepth();
1877         }
1878         else if (strcmp(s, "random") == 0)
1879         {
1880             dither = DITHER;
1881         }
1882         else if (strcmp(s, "hard") == 0)
1883         {
1884             flag.easy = false;
1885         }
1886         else if (strcmp(s, "easy") == 0)
1887         {
1888             flag.easy = !flag.easy;
1889         }
1890         else if (strcmp(s, "tsume") == 0)
1891         {
1892             flag.tsume = !flag.tsume;
1893         }
1894         else if (strcmp(s, "contempt") == 0)
1895         {
1896             dsp->SetContempt();
1897         }
1898         else if (strcmp(s, "xwndw") == 0)
1899         {
1900             dsp->ChangeXwindow();
1901         }
1902         else if (strcmp(s, "rv") == 0)
1903         {
1904             flag.rv = !flag.rv;
1905             dsp->UpdateDisplay(0, 0, 1, 0);
1906         }
1907         else if (strcmp(s, "coords") == 0)
1908         {
1909             flag.coords = !flag.coords;
1910             dsp->UpdateDisplay(0, 0, 1, 0);
1911         }
1912         else if (strcmp(s, "stars") == 0)
1913         {
1914             flag.stars = !flag.stars;
1915             dsp->UpdateDisplay(0, 0, 1, 0);
1916         }
1917         else if (!XSHOGI && strcmp(s, "moves") == 0)
1918         {
1919             short temp;
1920
1921 #if MAXDEPTH > 3
1922             if (GameCnt > 0)
1923             {
1924                 extern unsigned short PrVar[MAXDEPTH];
1925
1926                 SwagHt = (GameList[GameCnt].gmove == PrVar[1])
1927                     ? PrVar[2] : 0;
1928             }
1929             else
1930 #endif
1931                 SwagHt = 0;
1932
1933             dsp->ShowMessage("Testing MoveList Speed");
1934             temp = generate_move_flags;
1935             generate_move_flags = true;
1936             TestSpeed(MoveList, 1);
1937             generate_move_flags = temp;
1938             dsp->ShowMessage("Testing CaptureList Speed");
1939             TestSpeed(CaptureList, 1);
1940             dsp->ShowMessage("Testing Eval Speed");
1941             ExaminePosition(opponent);
1942             TestPSpeed(ScorePosition, 1);
1943         }
1944         else if (!XSHOGI && strcmp(s, "test") == 0)
1945         {
1946 #ifdef SLOW_CPU
1947             dsp->ShowMessage("Testing MoveList Speed");
1948             TestSpeed(MoveList, 2000);
1949             dsp->ShowMessage("Testing CaptureList Speed");
1950             TestSpeed(CaptureList, 3000);
1951             dsp->ShowMessage("Testing Eval Speed");
1952             ExaminePosition(opponent);
1953             TestPSpeed(ScorePosition, 1500);
1954 #else
1955             dsp->ShowMessage("Testing MoveList Speed");
1956             TestSpeed(MoveList, 20000);
1957             dsp->ShowMessage("Testing CaptureList Speed");
1958             TestSpeed(CaptureList, 30000);
1959             dsp->ShowMessage("Testing Eval Speed");
1960             ExaminePosition(opponent);
1961             TestPSpeed(ScorePosition, 15000);
1962 #endif
1963         }
1964         else if (!XSHOGI && strcmp(s, "p") == 0)
1965         {
1966             dsp->ShowPostnValues();
1967         }
1968         else if (!XSHOGI && strcmp(s, "debug") == 0)
1969         {
1970             dsp->DoDebug();
1971         }
1972         else
1973         {
1974             if (flag.mate)
1975             {
1976                 ok = true;
1977             }
1978             else if ((ok = VerifyMove(s, VERIFY_AND_MAKE_MODE, &mv)))
1979             {
1980                 /* check for repetition */
1981                 short rpt = repetition();
1982
1983                 if (rpt >= 3)
1984                 {
1985                     DRAW = DRAW_REPETITION;
1986                     dsp->ShowMessage(DRAW);
1987                     GameList[GameCnt].flags |= draw;
1988
1989                         flag.mate = true;
1990                 }
1991                 else
1992                 {
1993                     is_move = true;
1994                 }
1995             }
1996
1997             Sdepth = 0;
1998         }
1999     }
2000
2001     ElapsedTime(COMPUTE_AND_INIT_MODE);
2002
2003     if (flag.force)
2004     {
2005         computer = opponent;
2006         opponent = computer ^ 1;
2007     }
2008
2009     if (XSHOGI)
2010     {
2011         /* add remaining time in milliseconds for xshogi */
2012         if (is_move)
2013         {
2014             printf("%d. %s %ld\n",
2015                    ++mycnt2, s, TimeControl.clock[player] * 10);
2016         }
2017     }
2018 }