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
  38 #include "gnushogi.h"
  39
  40 #include <stdio.h>
  41
  42 #if defined HAVE_GETTIMEOFDAY
  43 #include <sys/time.h>
  44 #endif
  45
  46 #include <ctype.h>
  47 #include <signal.h>
  48
  49 #include <sys/param.h>
  50 #include <sys/types.h>
  51 #include <sys/file.h>
  52
  53 char mvstr[4][6];
  54 int mycnt1, mycnt2;
  55 static char *InPtr;
  56 struct display *dsp = &raw_display;
  57
  58 short xboard = false;
  59
  60 #if defined(BOOKTEST)
  61
  62 void
  63 movealgbr(short m, char *s)
  64 {
  65     unsigned int f, t;
  66     short piece = 0, flag = 0;
  67
  68     if (m == 0)
  69     {
  70         strcpy(s, "none");
  71         return;
  72     }
  73
  74     f = (m >> 8) & 0x7f;
  75     t = m & 0xff;
  76
  77     if (f > NO_SQUARES)
  78     {
  79         piece = f - NO_SQUARES;
  80
  81         if (piece > NO_PIECES)
  82             piece -= NO_PIECES;
  83
  84         flag = (dropmask | piece);
  85     }
  86
  87     if (t & 0x80)
  88     {
  89         flag |= promote;
  90         t &= 0x7f;
  91     }
  92
  93     if (flag & dropmask)
  94     {
  95         *s = pxx[piece];
  96         s++;
  97         *s = '*';
  98         s++;
  99         *s = COL_NAME(column(t));
 100         s++;
 101         *s = ROW_NAME(row(t));
 102         s++;
 103     }
 104     else
 105     {
 106         *s = COL_NAME(column(f));
 107         s++;
 108         *s = ROW_NAME(row(f));
 109         s++;
 110         *s = COL_NAME(column(t));
 111         s++;
 112         *s = ROW_NAME(row(t));
 113         s++;
 114
 115         if (flag & promote)
 116         {
 117             *s = '+';
 118             s++;
 119         }
 120     }
 121
 122     if (m & 0x8000)
 123     {
 124         *s = '?';
 125         s++;
 126     }
 127
 128     *s = '\0';
 129 }
 130
 131 #endif /* BOOKTEST */
 132
 133
 134 /*
 135  * Generate move strings in different formats.
 136  *
 137  * INPUT:
 138  * - f                                  piece to be moved
 139  *   - 0 < f < NO_SQUARES                               source square
 140  *   - NO_SQUARES <= f NO_SQUARES + 2*NO_PIECES         dropped piece modulo NO_PIECES
 141  * - t & 0x7f                           target square
 142  * - t & 0x80                           promotion flag
 143  * - flag
 144  *   - if flag & dropmask, piece type encoded in flag & pmask
 145  *
 146  * FIXME: that makes 2 ways to specify drops and promotions, why ?
 147  *
 148  * OUTPUT:
 149  * - GLOBAL mvstr
 150  */
 151
 152 void
 153 algbr(short f, short t, short flags)
 154 {
 155     if (f > NO_SQUARES)
 156     {
 157         short piece;
 158
 159         piece = f - NO_SQUARES;
 160
 161         if (f > (NO_SQUARES + NO_PIECES))
 162             piece -= NO_PIECES;
 163
 164         flags = (dropmask | piece);
 165     }
 166
 167     if ((t & 0x80) != 0)
 168     {
 169         flags |= promote;
 170         t &= 0x7f;
 171     }
 172
 173     if ((f == t) && ((f != 0) || (t != 0)))
 174     {
 175         if (!XSHOGI) {
 176             dsp->Printf("error in algbr: FROM=TO=%d, flags=0x%4x\n", t, flags);
 177         }
 178
 179         mvstr[0][0] = mvstr[1][0] = mvstr[2][0] = mvstr[3][0] = '\0';
 180     }
 181     else if ((flags & dropmask) != 0)
 182     {
 183         short piece = flags & pmask;
 184
 185         mvstr[0][0] = pxx[piece];
 186         mvstr[0][1] = xboard ? '@' : '*';
 187         mvstr[0][2] = COL_NAME(column(t));
 188         mvstr[0][3] = ROW_NAME(row(t));
 189         mvstr[0][4] = '\0';
 190         strcpy(mvstr[1], mvstr[0]);
 191         strcpy(mvstr[2], mvstr[0]);
 192         strcpy(mvstr[3], mvstr[0]);
 193     }
 194     else if ((f != 0) || (t != 0))
 195     {
 196         /* pure coordinates notation */
 197         mvstr[0][0] = COL_NAME(column(f));
 198         mvstr[0][1] = ROW_NAME(row(f));
 199         mvstr[0][2] = COL_NAME(column(t));
 200         mvstr[0][3] = ROW_NAME(row(t));
 201         mvstr[0][4] = '\0';
 202
 203         /* algebraic notation without disambiguation */
 204         mvstr[1][0] = pxx[board[f]];
 205         mvstr[1][1] = mvstr[0][2];    /* to column */
 206         mvstr[1][2] = mvstr[0][3];    /* to row */
 207         mvstr[1][3] = '\0';
 208
 209         /* algebraic notation with row disambiguation */
 210         mvstr[2][0] = mvstr[1][0];
 211         mvstr[2][1] = mvstr[0][1];
 212         mvstr[2][2] = mvstr[0][2];    /* to column */
 213         mvstr[2][3] = mvstr[0][3];    /* to row */
 214         mvstr[2][4] = '\0';
 215
 216         /* algebraic notation with column disambiguation */
 217         strcpy(mvstr[3], mvstr[2]);
 218         mvstr[3][1] = mvstr[0][0];
 219
 220         if (flags & promote)
 221         {
 222             strcat(mvstr[0], "+");
 223             strcat(mvstr[1], "+");
 224             strcat(mvstr[2], "+");
 225             strcat(mvstr[3], "+");
 226         }
 227     }
 228     else
 229     {
 230         mvstr[0][0] = mvstr[1][0] = mvstr[2][0] = mvstr[3][0] = '\0';
 231     }
 232 }
 233
 234
 235 /*
 236  * Compare the string 's' to the list of legal moves available for the
 237  * opponent. If a match is found, make the move on the board.
 238  */
 239
 240 int
 241 VerifyMove(char *s, VerifyMove_mode iop, unsigned short *mv)
 242 {
 243     static short pnt, tempb, tempc, tempsf, tempst, cnt;
 244     static struct leaf xnode;
 245     struct leaf  *node;
 246     short i, l, local_flags;
 247     char buffer[60];
 248
 249     /* check and remove quality flags */
 250     for (i = local_flags = 0, l = strlen(s); i < l; i++)
 251     {
 252         switch(s[i])
 253         {
 254         case '?':
 255             local_flags |= badmove;
 256             s[i] = '\0';
 257             break;
 258
 259         case '!':
 260             local_flags |= goodmove;
 261             s[i] = '\0';
 262             break;
 263
 264 #ifdef EASY_OPENINGS
 265         case '~':
 266             local_flags |= difficult;
 267             s[i] = '\0';
 268             break;
 269 #endif
 270         }
 271     }
 272
 273     *mv = 0;
 274
 275     if (iop == UNMAKE_MODE)
 276     {
 277         UnmakeMove(opponent, &xnode, &tempb, &tempc, &tempsf, &tempst);
 278         return false;
 279     }
 280
 281     cnt = 0;
 282
 283     if (iop == VERIFY_AND_MAKE_MODE)
 284         generate_move_flags = true;
 285
 286     MoveList(opponent, 2, -1, true);
 287     generate_move_flags = false;
 288     pnt = TrPnt[2];
 289     if(s[4] == '=') s[4] = '\0'; /* deferral is implied */
 290
 291     while (pnt < TrPnt[3])
 292     {
 293         node = &Tree[pnt++];
 294         algbr(node->f, node->t, (short) node->flags);
 295
 296         if ((strcmp(s, mvstr[0]) == 0)
 297             || (strcmp(s, mvstr[1]) == 0)
 298             || (strcmp(s, mvstr[2]) == 0)
 299             || (strcmp(s, mvstr[3]) == 0))
 300         {
 301             cnt++;
 302             xnode = *node;
 303         }
 304     }
 305
 306     if ((cnt == 1) && (xnode.score > DONTUSE))
 307     {
 308         short blocked;
 309
 310         MakeMove(opponent, &xnode, &tempb, &tempc,
 311                  &tempsf, &tempst, &INCscore);
 312
 313         if (SqAttacked(PieceList[opponent][0], computer, &blocked))
 314         {
 315             UnmakeMove(opponent, &xnode, &tempb, &tempc, &tempsf, &tempst);
 316             dsp->AlwaysShowMessage("Illegal move (in check): %s", s);
 317             return false;
 318         }
 319         else
 320         {
 321             if (iop == VERIFY_AND_TRY_MODE)
 322                 return true;
 323
 324             dsp->UpdateDisplay(xnode.f, xnode.t, 0, (short) xnode.flags);
 325             GameList[GameCnt].depth = GameList[GameCnt].score = 0;
 326             GameList[GameCnt].nodes = 0;
 327             ElapsedTime(COMPUTE_AND_INIT_MODE);
 328             GameList[GameCnt].time = (short) (et + 50)/100;
 329             GameList[GameCnt].flags |= local_flags;
 330
 331             if (TCflag)
 332             {
 333                 TimeControl.clock[opponent] -= et;
 334                 timeopp[oppptr] = et;
 335                 --TimeControl.moves[opponent];
 336             }
 337
 338             *mv = (xnode.f << 8) | xnode.t;
 339             algbr(xnode.f, xnode.t, 0);
 340
 341             /* in force mode, check for mate conditions */
 342             if (flag.force)
 343             {
 344                 if (IsCheckmate(opponent ^ 1, -1, -1))
 345                 {
 346                     char buf[20];
 347
 348                     sprintf(buf, "%s mates!\n", ColorStr[opponent]);
 349                     dsp->ShowMessage(buf);
 350                     flag.mate = true;
 351                 }
 352             }
 353
 354             return true;
 355         }
 356     }
 357
 358     dsp->AlwaysShowMessage("Illegal move (no match): %s", s);
 359
 360     if (!XSHOGI && (cnt > 1))
 361     {
 362         sprintf(buffer, "Ambiguous Move %s!", s);
 363         dsp->ShowMessage(buffer);
 364     }
 365
 366     return false;
 367 }
 368
 369
 370 static int
 371 parser(char *f, short *fpiece)
 372 {
 373     int c1, r1, c2, r2;
 374     short i, p = false;
 375
 376     if (*f == '+')
 377         f++, p = true;
 378
 379     for (i = 1, *fpiece = no_piece; i < NO_PIECES; i++)
 380     {
 381         if (f[0] == pxx[i] || f[0] == qxx[i])
 382         {
 383             *fpiece = (p ? promoted[i] : unpromoted[i]);
 384             break;
 385         }
 386     }
 387
 388     if (f[1] == '*' || f[1] == '\'')
 389     {
 390         c2 = COL_NUM(f[2]);
 391         r2 = ROW_NUM(f[3]);
 392
 393         return ((NO_SQUARES + *fpiece) << 8) | locn(r2, c2);
 394     }
 395     else
 396     {
 397         c1 = COL_NUM(f[1]);
 398         r1 = ROW_NUM(f[2]);
 399         c2 = COL_NUM(f[3]);
 400         r2 = ROW_NUM(f[4]);
 401         p = (f[5] == '+') ? 0x80 : 0;
 402
 403         return (locn(r1, c1) << 8) | locn(r2, c2) | p;
 404     }
 405 }
 406
 407
 408 void
 409 skip()
 410 {
 411     while (*InPtr != ' ')
 412         InPtr++;
 413
 414     while (*InPtr == ' ')
 415         InPtr++;
 416 }
 417
 418
 419 void
 420 skipb()
 421 {
 422     while (*InPtr == ' ')
 423         InPtr++;
 424 }
 425
 426
 427 void RequestInputString(char* buffer, unsigned bufsize)
 428 {
 429     static char fmt[10];
 430     int ret = snprintf(fmt, sizeof(fmt), "%%%us", bufsize);
 431     if (ret < 0 ) {
 432         perror("RequestInputString snprintf");
 433         exit(1);
 434     }
 435     if (ret >= sizeof(fmt)) {
 436         fprintf(stderr,
 437                 "Insufficient format-buffer size in %s for bufsize=%u\n",
 438                 __FUNCTION__, bufsize);
 439         exit(1);
 440     }
 441     dsp->doRequestInputString(fmt, buffer);
 442 }
 443
 444
 445 static void
 446 GetGame(void)
 447 {
 448     FILE *fd;
 449     char fname[256], *p;
 450     int c, i, j;
 451     short sq;
 452     short side, isp;
 453
 454     if (savefile[0]) {
 455         strcpy(fname, savefile);
 456     } else {
 457         dsp->ShowMessage("Enter file name: ");
 458         RequestInputString(fname, sizeof(fname)-1);
 459     }
 460
 461     if (fname[0] == '\0')
 462         strcpy(fname, "shogi.000");
 463
 464     if ((fd = fopen(fname, "r")) != NULL)
 465     {
 466         NewGame();
 467         fgets(fname, 256, fd);
 468         computer = opponent = black;
 469         InPtr = fname;
 470         skip();
 471
 472         if (*InPtr == 'c')
 473             computer = white;
 474         else
 475             opponent = white;
 476
 477         /* FIXME: write a skipn() function so that we can get
 478          * 3 skips by doing skipn(3) */
 479         skip();
 480         skip();
 481         skip();
 482         Game50 = atoi(InPtr);
 483         skip();
 484         flag.force = (*InPtr == 'f');
 485         fgets(fname, 256, fd); /* empty */
 486         fgets(fname, 256, fd);
 487         InPtr = &fname[11];
 488         skipb();
 489         TCflag = atoi(InPtr);
 490         skip();
 491         InPtr += 14;
 492         skipb();
 493         OperatorTime = atoi(InPtr);
 494         fgets(fname, 256, fd);
 495         InPtr = &fname[11];
 496         skipb();
 497         TimeControl.clock[black] = atol(InPtr);
 498         skip();
 499         skip();
 500         TimeControl.moves[black] = atoi(InPtr);
 501         fgets(fname, 256, fd);
 502         InPtr = &fname[11];
 503         skipb();
 504         TimeControl.clock[white] = atol(InPtr);
 505         skip();
 506         skip();
 507         TimeControl.moves[white] = atoi(InPtr);
 508         fgets(fname, 256, fd); /* empty */
 509
 510         for (i = NO_ROWS - 1; i > -1; i--)
 511         {
 512             fgets(fname, 256, fd);
 513             p = &fname[2];
 514             InPtr = &fname[23];
 515
 516             for (j = 0; j < NO_COLS; j++)
 517             {
 518                 sq = i * NO_COLS + j;
 519                 isp = (*p == '+');
 520                 p++;
 521
 522                 if (*p == '-')
 523                 {
 524                     board[sq] = no_piece;
 525                     color[sq] = neutral;
 526                 }
 527                 else
 528                 {
 529                     for (c = 0; c < NO_PIECES; c++)
 530                     {
 531                         if (*p == pxx[c])
 532                         {
 533                             if (isp)
 534                                 board[sq] = promoted[c];
 535                             else
 536                                 board[sq] = unpromoted[c];
 537
 538                             color[sq] = white;
 539                         }
 540                     }
 541
 542                     for (c = 0; c < NO_PIECES; c++)
 543                     {
 544                         if (*p == qxx[c])
 545                         {
 546                             if (isp)
 547                                 board[sq] = promoted[c];
 548                             else
 549                                 board[sq] = unpromoted[c];
 550
 551                             color[sq] = black;
 552                         }
 553                     }
 554                 }
 555
 556                 p++;
 557                 Mvboard[sq] = atoi(InPtr);
 558                 skip();
 559             }
 560         }
 561
 562         fgets(fname, 256, fd);  /* empty */
 563         fgets(fname, 256, fd);  /* 9 8 7 ... */
 564         fgets(fname, 256, fd);  /* empty */
 565         fgets(fname, 256, fd);  /* p l n ... */
 566         ClearCaptured();
 567
 568         for (side = 0; side <= 1; side++)
 569         {
 570             fgets(fname, 256, fd);
 571             InPtr = fname;
 572             skip();
 573             skipb();
 574             Captured[side][pawn] = atoi(InPtr);
 575             skip();
 576 #ifndef MINISHOGI
 577             Captured[side][lance] = atoi(InPtr);
 578             skip();
 579             Captured[side][knight] = atoi(InPtr);
 580             skip();
 581 #endif
 582             Captured[side][silver] = atoi(InPtr);
 583             skip();
 584             Captured[side][gold] = atoi(InPtr);
 585             skip();
 586             Captured[side][bishop] = atoi(InPtr);
 587             skip();
 588             Captured[side][rook] = atoi(InPtr);
 589             skip();
 590             Captured[side][king] = atoi(InPtr);
 591         }
 592
 593         GameCnt = 0;
 594         flag.regularstart = true;
 595         Book = BOOKFAIL;
 596         fgets(fname, 256, fd); /* empty */
 597         fgets(fname, 256, fd);   /*  move score ... */
 598
 599         while (fgets(fname, 256, fd))
 600         {
 601             struct GameRec  *g;
 602             int side = computer;
 603
 604             side = side ^ 1;
 605             ++GameCnt;
 606             InPtr = fname;
 607             skipb();
 608             g = &GameList[GameCnt];
 609             g->gmove = parser(InPtr, &g->fpiece);
 610             skip();
 611             g->score = atoi(InPtr);
 612             skip();
 613             g->depth = atoi(InPtr);
 614             skip();
 615             g->nodes = atol(InPtr);
 616             skip();
 617             g->time = atol(InPtr);
 618             skip();
 619             g->flags = c = atoi(InPtr);
 620             skip();
 621             g->hashkey = strtol(InPtr, (char **) NULL, 16);
 622             skip();
 623             g->hashbd = strtol(InPtr, (char **) NULL, 16);
 624
 625             if (c & capture)
 626             {
 627                 short i, piece;
 628
 629                 skip();
 630
 631                 for (piece = no_piece, i = 0; i < NO_PIECES; i++)
 632                 {
 633                     if (pxx[i] == *InPtr)
 634                     {
 635                         piece = i;
 636                         break;
 637                     }
 638                 }
 639
 640                 skip();
 641                 g->color = ((*InPtr == 'W') ? white : black);
 642                 skip();
 643                 g->piece = (*InPtr == '+'
 644                             ? promoted[piece]
 645                             : unpromoted[piece]);
 646             }
 647             else
 648             {
 649                 g->color = neutral;
 650                 g->piece = no_piece;
 651             }
 652         }
 653
 654         if (TimeControl.clock[black] > 0)
 655             TCflag = true;
 656
 657         fclose(fd);
 658     }
 659
 660     ZeroRPT();
 661     InitializeStats();
 662     dsp->UpdateDisplay(0, 0, 1, 0);
 663     Sdepth = 0;
 664     hint = 0;
 665 }
 666
 667
 668 static void
 669 SaveGame(void)
 670 {
 671     FILE *fd;
 672     char fname[256];
 673     short sq, i, c, f, t;
 674     char p;
 675     short side, piece;
 676     char empty[2] = "\n";
 677
 678     if (savefile[0]) {
 679         strcpy(fname, savefile);
 680     } else {
 681         dsp->ShowMessage("Enter file name: ");
 682         RequestInputString(fname, sizeof(fname)-1);
 683     }
 684
 685     if (fname[0] == '\0')
 686         strcpy(fname, "shogi.000");
 687
 688     if ((fd = fopen(fname, "w")) != NULL)
 689     {
 690         char *b, *w;
 691         b = w = "Human   ";
 692
 693         if (computer == white)
 694             w = "computer";
 695
 696         if (computer == black)
 697             b = "computer";
 698
 699         fprintf(fd, "White %s Black %s %d %s\n", w, b, Game50,
 700                 flag.force ? "force" : "");
 701         fputs(empty, fd);
 702         fprintf(fd, "TimeControl %d Operator Time %d\n", TCflag, OperatorTime);
 703         fprintf(fd, "Black Clock %ld Moves %d\nWhite Clock %ld Moves %d\n",
 704                 TimeControl.clock[black], TimeControl.moves[black],
 705                 TimeControl.clock[white], TimeControl.moves[white]);
 706         fputs(empty, fd);
 707
 708         for (i = NO_ROWS - 1; i > -1; i--)
 709         {
 710             fprintf(fd, "%c ", ROW_NAME(i));
 711
 712             for (c = 0; c < NO_COLS; c++)
 713             {
 714                 sq = i * NO_COLS + c;
 715                 piece = board[sq];
 716                 p = is_promoted[piece] ? '+' : ' ';
 717                 fprintf(fd, "%c", p);
 718
 719                 switch(color[sq])
 720                 {
 721                 case white:
 722                     p = pxx[piece];
 723                     break;
 724
 725                 case black:
 726                     p = qxx[piece];
 727                     break;
 728
 729                 default:
 730                     p = '-';
 731                 }
 732
 733                 fprintf(fd, "%c", p);
 734             }
 735
 736             fprintf(fd, "  ");
 737
 738             for (f = i * NO_COLS; f < i * NO_COLS + NO_ROWS; f++)
 739                 fprintf(fd, " %d", Mvboard[f]);
 740
 741             fprintf(fd, "\n");
 742         }
 743
 744         fputs(empty, fd);
 745 #ifndef MINISHOGI
 746         fprintf(fd, "   9 8 7 6 5 4 3 2 1\n");
 747         fputs(empty, fd);
 748         fprintf(fd, "   p  l  n  s  g  b  r  k\n");
 749 #else
 750         fprintf(fd, "   5 4 3 2 1\n");
 751         fputs(empty, fd);
 752         fprintf(fd, "   p  s  g  b  r  k\n");
 753 #endif
 754
 755         for (side = 0; side <= 1; side++)
 756         {
 757             fprintf(fd, "%c", (side == black) ? 'B' : 'W');
 758             fprintf(fd, " %2d", Captured[side][pawn]);
 759 #ifndef MINISHOGI
 760             fprintf(fd, " %2d", Captured[side][lance]);
 761             fprintf(fd, " %2d", Captured[side][knight]);
 762 #endif
 763             fprintf(fd, " %2d", Captured[side][silver]);
 764             fprintf(fd, " %2d", Captured[side][gold]);
 765             fprintf(fd, " %2d", Captured[side][bishop]);
 766             fprintf(fd, " %2d", Captured[side][rook]);
 767             fprintf(fd, " %2d", Captured[side][king]);
 768             fprintf(fd, "\n");
 769         }
 770
 771         fputs(empty, fd);
 772         fputs("  move   score depth   nodes   time flags                         capture\n", fd);
 773
 774         for (i = 1; i <= GameCnt; i++)
 775         {
 776             struct GameRec  *g = &GameList[i];
 777
 778             f = g->gmove >> 8;
 779             t = (g->gmove & 0xFF);
 780             algbr(f, t, g->flags);
 781
 782             fprintf(fd, "%c%c%-5s %6d %5d %7ld %6ld %5d  0x%08lx 0x%08lx",
 783                     ((f > NO_SQUARES)
 784                      ? ' '
 785                      : (is_promoted[g->fpiece] ? '+' : ' ')),
 786                     pxx[g->fpiece],
 787                     ((f > NO_SQUARES) ? &mvstr[0][1] : mvstr[0]),
 788                     g->score, g->depth,
 789                     g->nodes, g->time, g->flags,
 790                     g->hashkey, g->hashbd);
 791
 792             if (g->piece != no_piece)
 793             {
 794                 fprintf(fd, "  %c %s %c\n",
 795                         pxx[g->piece], ColorStr[g->color],
 796                         (is_promoted[g->piece] ? '+' : ' '));
 797             }
 798             else
 799             {
 800                 fprintf(fd, "\n");
 801             }
 802         }
 803
 804         fclose(fd);
 805
 806         dsp->ShowMessage("Game saved");
 807     }
 808     else
 809     {
 810         dsp->ShowMessage("Could not open file");
 811     }
 812 }
 813
 814
 815 /*
 816  * GetXGame, SaveXGame and BookGame used to only be defined if
 817  * xshogi wasn't defined -- wonder why?
 818  */
 819
 820 static void
 821 GetXGame(void)
 822 {
 823     FILE *fd;
 824     char fname[256], *p;
 825     int c, i, j;
 826     short sq;
 827     short side, isp;
 828
 829     dsp->ShowMessage("Enter file name: ");
 830     RequestInputString(fname, sizeof(fname)-1);
 831
 832     if (fname[0] == '\0')
 833         strcpy(fname, "xshogi.position.read");
 834
 835     if ((fd = fopen(fname, "r")) != NULL)
 836     {
 837         NewGame();
 838         flag.regularstart = false;
 839         Book = false;
 840
 841         /* xshogi position file ... */
 842         fgets(fname, 256, fd);
 843
 844 #ifdef notdef
 845         fname[6] = '\0';
 846
 847         if (strcmp(fname, "xshogi"))
 848             return;
 849 #endif
 850
 851         /* -- empty line -- */
 852         fgets(fname, 256, fd);
 853         /* -- empty line -- */
 854         fgets(fname, 256, fd);
 855
 856         for (i = NO_ROWS - 1; i > -1; i--)
 857         {
 858             fgets(fname, 256, fd);
 859             p = fname;
 860
 861             for (j = 0; j < NO_COLS; j++)
 862             {
 863                 sq = i * NO_COLS + j;
 864                 isp = (*p == '+');
 865                 p++;
 866
 867                 if (*p == '.')
 868                 {
 869                     board[sq] = no_piece;
 870                     color[sq] = neutral;
 871                 }
 872                 else
 873                 {
 874                     for (c = 0; c < NO_PIECES; c++)
 875                     {
 876                         if (*p == qxx[c])
 877                         {
 878                             if (isp)
 879                                 board[sq] = promoted[c];
 880                             else
 881                                 board[sq] = unpromoted[c];
 882
 883                             color[sq] = white;
 884                         }
 885                     }
 886
 887                     for (c = 0; c < NO_PIECES; c++)
 888                     {
 889                         if (*p == pxx[c])
 890                         {
 891                             if (isp)
 892                                 board[sq] = promoted[c];
 893                             else
 894                                 board[sq] = unpromoted[c];
 895
 896                             color[sq] = black;
 897                         }
 898                     }
 899                 }
 900
 901                 p++;
 902             }
 903         }
 904
 905         ClearCaptured();
 906
 907         for (side = 0; side <= 1; side++)
 908         {
 909             fgets(fname, 256, fd);
 910             InPtr = fname;
 911             Captured[side][pawn]   = atoi(InPtr);
 912             skip();
 913 #ifndef MINISHOGI
 914             Captured[side][lance]  = atoi(InPtr);
 915             skip();
 916             Captured[side][knight] = atoi(InPtr);
 917             skip();
 918 #endif
 919             Captured[side][silver] = atoi(InPtr);
 920             skip();
 921             Captured[side][gold]   = atoi(InPtr);
 922             skip();
 923             Captured[side][bishop] = atoi(InPtr);
 924             skip();
 925             Captured[side][rook]   = atoi(InPtr);
 926             skip();
 927             Captured[side][king]   = atoi(InPtr);
 928         }
 929
 930         if (fgets(fname, 256, fd) != NULL && strncmp(fname, "white", 5) == 0)
 931         {
 932             computer = black;
 933             opponent = white;
 934             xwndw = BXWNDW;
 935         }
 936
 937         fclose(fd);
 938     }
 939
 940     Game50 = 1;
 941     ZeroRPT();
 942     InitializeStats();
 943     dsp->UpdateDisplay(0, 0, 1, 0);
 944     Sdepth = 0;
 945     hint = 0;
 946 }
 947
 948
 949 static void
 950 SaveXGame(void)
 951 {
 952     FILE *fd;
 953     char fname[256], *p;
 954     int i, j;
 955     short sq, piece;
 956     short side, isp;
 957
 958     dsp->ShowMessage("Enter file name: ");
 959     RequestInputString(fname, sizeof(fname)-1);
 960
 961     if (fname[0] == '\0')
 962         strcpy(fname, "xshogi.position.read");
 963
 964     if ((fd = fopen(fname, "w")) != NULL)
 965     {
 966         fputs("# xshogi position file -- \n", fd);
 967         fputs("\n", fd);
 968         fputs("\n", fd);
 969
 970         for (i = NO_ROWS - 1; i > -1; i--)
 971         {
 972             p = fname;
 973
 974             for (j = 0; j < NO_COLS; j++)
 975             {
 976                 sq = i * NO_COLS + j;
 977                 piece = board[sq];
 978                 isp = is_promoted[piece];
 979                 *p = (isp ? '+' : ' ');
 980                 p++;
 981
 982                 if (piece == no_piece)
 983                     *p = '.';
 984                 else if (color[sq] == white)
 985                     *p = qxx[piece];
 986                 else
 987                     *p = pxx[piece];
 988
 989                 p++;
 990             }
 991
 992             *p++ = '\n';
 993             *p++ = '\0';
 994             fputs(fname, fd);
 995         }
 996
 997         for (side = 0; side <= 1; side++)
 998         {
 999             sprintf(fname,
1000 #ifndef MINISHOGI
1001                     "%d %d %d %d %d %d %d %d\n",
1002 #else
1003                     "%d %d %d %d %d %d\n",
1004 #endif
1005                     Captured[side][pawn],
1006 #ifndef MINISHOGI
1007                     Captured[side][lance],
1008                     Captured[side][knight],
1009 #endif
1010                     Captured[side][silver],
1011                     Captured[side][gold],
1012                     Captured[side][bishop],
1013                     Captured[side][rook],
1014                     Captured[side][king]);
1015
1016             fputs(fname, fd);
1017         }
1018
1019         if (computer == black)
1020             fputs("white to play\n", fd);
1021         else
1022             fputs("black to play\n", fd);
1023
1024         fclose(fd);
1025     }
1026 }
1027
1028
1029 static void
1030 BookSave(void)
1031 {
1032     FILE *fd;
1033     char fname[256], sflags[4];
1034     short i, j, f, t;
1035
1036     if (savefile[0]) {
1037         strcpy(fname, savefile);
1038     } else {
1039         /* Enter file name */
1040         dsp->ShowMessage("Enter file name: ");
1041         RequestInputString(fname, sizeof(fname)-1);
1042     }
1043
1044     if (fname[0] == '\0') {
1045         dsp->AlwaysShowMessage("aborting book save");
1046         return;
1047     }
1048
1049     if ((fd = fopen(fname, "a")) != NULL)
1050     {
1051         fprintf(fd, "#\n");
1052
1053         for (i = 1; i <= GameCnt; i++)
1054         {
1055             struct GameRec  *g = &GameList[i];
1056             char mvnr[20], mvs[20];
1057
1058             if (i % 2)
1059                 sprintf(mvnr, "%d.", (i + 1)/2);
1060             else
1061                 strcpy(mvnr, "");
1062
1063             f = g->gmove >> 8;
1064             t = (g->gmove & 0xFF);
1065             algbr(f, t, g->flags);
1066             j = 0;
1067
1068             /* determine move quality string */
1069             if (g->flags & goodmove)
1070                 sflags[j++] = '!';
1071
1072             if (g->flags & badmove)
1073                 sflags[j++] = '?';
1074
1075 #ifdef EASY_OPENINGS
1076             if (g->flags & difficult)
1077                 sflags[j++] = '~';
1078 #endif
1079
1080             sflags[j] = '\0';
1081
1082             /* determine move string */
1083             if (f > NO_SQUARES)
1084             {
1085                 sprintf(mvs, "%s%s ", &mvstr[0][1], sflags);
1086             }
1087             else
1088             {
1089                 sprintf(mvs, "%c%c%c%c%c%s%s ",
1090                         mvstr[0][0], mvstr[0][1],
1091                         (g->flags & capture) ? 'x' : '-',
1092                         mvstr[0][2], mvstr[0][3],
1093                         (mvstr[0][4] == '+') ? "+" : "",
1094                         sflags);
1095             }
1096
1097             fprintf(fd, "%s%s%c%s",
1098                     mvnr,
1099                     (f > NO_SQUARES
1100                      ? ""
1101                      : (is_promoted[g->fpiece] ? "+" : "")),
1102                     pxx[g->fpiece],
1103                     mvs);
1104
1105             if ((i % 10) == 0)
1106                 fprintf(fd, "\n");
1107         }
1108
1109         if ((i % 10) != 1)
1110             fprintf(fd, "\n");
1111
1112         fclose(fd);
1113
1114         dsp->ShowMessage("Game saved");
1115     }
1116     else
1117     {
1118         dsp->ShowMessage("Could not open file");
1119     }
1120 }
1121
1122
1123 void
1124 ListGame(void)
1125 {
1126     FILE *fd;
1127     short i, f, t;
1128     time_t when;
1129     char fname[256], dbuf[256];
1130
1131     if (listfile[0])
1132     {
1133         strcpy(fname, listfile);
1134     }
1135     else
1136     {
1137         time(&when);
1138         strncpy(dbuf, ctime(&when), 20);
1139         dbuf[7]  = '\0';
1140         dbuf[10] = '\0';
1141         dbuf[13] = '\0';
1142         dbuf[16] = '\0';
1143         dbuf[19] = '\0';
1144
1145         /* use format "CL.Jan01-020304B" when
1146            date is Jan 1
1147            time is 02:03:04
1148            program played white */
1149
1150         sprintf(fname, "CL.%s%s-%s%s%s%c",
1151                 dbuf + 4, dbuf + 8, dbuf + 11, dbuf + 14,
1152                 dbuf + 17, ColorStr[computer][0]);
1153
1154         /* replace space padding with 0 */
1155         for (i = 0; fname[i] != '\0'; i++)
1156         {
1157             if (fname[i] == ' ')
1158                 fname[i] = '0';
1159         }
1160     }
1161
1162     fd = fopen(fname, "w");
1163
1164     if (!fd)
1165     {
1166         printf("Open failure for file: %s", fname);
1167         exit(1);
1168     }
1169
1170     fprintf(fd, "gnushogi %s game\n", PACKAGE_VERSION);
1171     fputs("         score  depth   nodes  time         ", fd);
1172     fputs("         score  depth   nodes  time\n", fd);
1173
1174     for (i = 1; i <= GameCnt; i++)
1175     {
1176         f = GameList[i].gmove >> 8;
1177         t = (GameList[i].gmove & 0xFF);
1178         algbr(f, t, GameList[i].flags);
1179
1180         if (GameList[i].flags & book)
1181         {
1182             fprintf(fd, "%c%c%-5s  %5d    Book%7ld %5ld",
1183                     ((f > NO_SQUARES)
1184                      ? ' '
1185                      : (is_promoted[GameList[i].fpiece] ? '+' : ' ')),
1186                     pxx[GameList[i].fpiece],
1187                     ((f > NO_SQUARES)
1188                      ? &mvstr[0][1] : mvstr[0]),
1189                     GameList[i].score,
1190                     GameList[i].nodes,
1191                     GameList[i].time);
1192         }
1193         else
1194         {
1195             fprintf(fd, "%c%c%-5s  %5d     %2d %7ld %5ld",
1196                     (f > NO_SQUARES
1197                      ? ' '
1198                      : (is_promoted[GameList[i].fpiece] ? '+' : ' ')),
1199                     pxx[GameList[i].fpiece],
1200                     (f > NO_SQUARES ? &mvstr[0][1] : mvstr[0]),
1201                     GameList[i].score, GameList[i].depth,
1202                     GameList[i].nodes, GameList[i].time);
1203         }
1204
1205         if ((i % 2) == 0)
1206         {
1207             fprintf(fd, "\n");
1208         }
1209         else
1210         {
1211             fprintf(fd, "         ");
1212         }
1213     }
1214
1215     fprintf(fd, "\n\n");
1216
1217     if (GameList[GameCnt].flags & draw)
1218     {
1219         fprintf(fd, "Draw %s\n", DRAW);
1220
1221         if (DRAW == DRAW_REPETITION)
1222         {
1223             short j;
1224
1225             fprintf(fd, "repetition by positions ");
1226
1227             for (j = GameCnt - 1; j >= Game50; j -= 2)
1228             {
1229                 if (GameList[j].hashkey == hashkey &&
1230                     GameList[j].hashbd == hashbd)
1231                     fprintf(fd, "%d ", j);
1232             }
1233
1234             fprintf(fd, "\n");
1235         }
1236     }
1237     else if (GameList[GameCnt].score == -(SCORE_LIMIT + 999))
1238     {
1239         fprintf(fd, "%s\n", ColorStr[player ]);
1240     }
1241     else if (GameList[GameCnt].score == (SCORE_LIMIT + 998))
1242     {
1243         fprintf(fd, "%s\n", ColorStr[player ^ 1]);
1244     }
1245
1246     fclose(fd);
1247 }
1248
1249
1250 static void
1251 FlagMove(char c)
1252 {
1253     switch(c)
1254     {
1255     case '?' :
1256         GameList[GameCnt].flags |= badmove;
1257         break;
1258
1259     case '!' :
1260         GameList[GameCnt].flags |= goodmove;
1261         break;
1262
1263 #ifdef EASY_OPENINGS
1264     case '~' :
1265         GameList[GameCnt].flags |= difficult;
1266         break;
1267 #endif
1268     }
1269 }
1270
1271
1272 /*
1273  * Undo the most recent half-move.
1274  */
1275
1276 static void
1277 Undo(void)
1278 {
1279     short f, t;
1280
1281     f = GameList[GameCnt].gmove >> 8;
1282     t = GameList[GameCnt].gmove & 0x7F;
1283
1284     if (f > NO_SQUARES)
1285     {
1286         /* the move was a drop */
1287         Captured[color[t]][board[t]]++;
1288         board[t] = no_piece;
1289         color[t] = neutral;
1290         Mvboard[t]--;
1291     }
1292     else
1293     {
1294         if (GameList[GameCnt].flags & promote)
1295             board[f] = unpromoted[board[t]];
1296         else
1297             board[f] = board[t];
1298
1299         color[f] = color[t];
1300         board[t] = GameList[GameCnt].piece;
1301         color[t] = GameList[GameCnt].color;
1302
1303         if (board[t] != no_piece)
1304             Captured[color[f]][unpromoted[board[t]]]--;
1305
1306         if (color[t] != neutral)
1307             Mvboard[t]--;
1308
1309         Mvboard[f]--;
1310     }
1311
1312     InitializeStats();
1313
1314     if (TCflag && (TCmoves > 1))
1315         ++TimeControl.moves[color[f]];
1316
1317     hashkey = GameList[GameCnt].hashkey;
1318     hashbd = GameList[GameCnt].hashbd;
1319     GameCnt--;
1320     computer = computer ^ 1;
1321     opponent = opponent ^ 1;
1322     flag.mate = false;
1323     Sdepth = 0;
1324     player = player ^ 1;
1325     dsp->ShowSidetoMove();
1326     dsp->UpdateDisplay(0, 0, 1, 0);
1327
1328     if (flag.regularstart)
1329         Book = false;
1330 }
1331
1332
1333 static void
1334 TestSpeed(void(*f)(short side, short ply,
1335                    short in_check, short blockable),
1336           unsigned j)
1337 {
1338 #ifdef test
1339     unsigned jj;
1340 #endif
1341
1342     unsigned i;
1343     long cnt, t1, t2;
1344
1345 #ifdef HAVE_GETTIMEOFDAY
1346     struct timeval tv;
1347 #endif
1348
1349 #ifdef HAVE_GETTIMEOFDAY
1350     gettimeofday(&tv, NULL);
1351     t1 = (tv.tv_sec*100 + (tv.tv_usec/10000));
1352 #else
1353     t1 = time(0);
1354 #endif
1355
1356     for (i = 0; i < j; i++)
1357     {
1358         f(opponent, 2, -1, true);
1359
1360 #ifdef test
1361         for (jj = TrPnt[2]; i < TrPnt[3]; jj++)
1362         {
1363             if (!pick(jj, TrPnt[3] - 1))
1364                 break;
1365         }
1366 #endif
1367     }
1368
1369 #ifdef HAVE_GETTIMEOFDAY
1370     gettimeofday(&tv, NULL);
1371     t2 = (tv.tv_sec * 100 + (tv.tv_usec / 10000));
1372 #else
1373     t2 = time(0);
1374 #endif
1375
1376     cnt = j * (TrPnt[3] - TrPnt[2]);
1377
1378     if (t2 - t1)
1379         et = (t2 - t1);
1380     else
1381         et = 1;
1382
1383     dsp->ShowNodeCnt(cnt);
1384 }
1385
1386
1387 static void
1388 TestPSpeed(short(*f) (short side), unsigned j)
1389 {
1390     unsigned i;
1391     long cnt, t1, t2;
1392 #ifdef HAVE_GETTIMEOFDAY
1393     struct timeval tv;
1394 #endif
1395
1396 #ifdef HAVE_GETTIMEOFDAY
1397     gettimeofday(&tv, NULL);
1398     t1 = (tv.tv_sec * 100 + (tv.tv_usec / 10000));
1399 #else
1400     t1 = time(0);
1401 #endif
1402
1403     for (i = 0; i < j; i++)
1404         (void) f(opponent);
1405
1406 #ifdef HAVE_GETTIMEOFDAY
1407     gettimeofday(&tv, NULL);
1408     t2 = (tv.tv_sec * 100 + (tv.tv_usec / 10000));
1409 #else
1410     t2 = time(0);
1411 #endif
1412
1413     cnt = j;
1414
1415     if (t2 - t1)
1416         et = (t2 - t1);
1417     else
1418         et = 1;
1419
1420     dsp->ShowNodeCnt(cnt);
1421 }
1422
1423
1424 static void
1425 SetOppTime(char *time)
1426 {
1427     int m, t;
1428
1429     t = (int)strtol(time, &time, 10);
1430
1431     if (*time == ':')
1432     {
1433         time++;
1434         /* FIXME: sec is parsed but ignored */
1435         (void)strtol(time, &time, 10);
1436     }
1437
1438     m = (int)strtol(time, &time, 10);
1439
1440     if (t)
1441         TimeControl.clock[opponent] = t;
1442
1443     if (m)
1444         TimeControl.moves[opponent] = m;
1445
1446     ElapsedTime(COMPUTE_AND_INIT_MODE);
1447
1448     if (XSHOGI)
1449     {
1450         /* just to inform xshogi about availability of otime command */
1451         printf("otime %d %d\n", t, m);
1452     }
1453 }
1454
1455
1456 static void
1457 SetMachineTime(char *time)
1458 {
1459     int m, t;
1460
1461     t = (int)strtol(time, &time, 10);
1462
1463     if (*time == ':')
1464     {
1465         time++;
1466         /* FIXME: sec is parsed but ignored */
1467         (void)strtol(time, &time, 10);
1468     }
1469
1470     m = (int)strtol(time, &time, 10);
1471
1472     if (t)
1473         TimeControl.clock[computer] = t;
1474
1475     if (m)
1476         TimeControl.moves[computer] = m;
1477
1478     ElapsedTime(COMPUTE_AND_INIT_MODE);
1479
1480     if (XSHOGI)
1481     {
1482         /* just to inform xshogi about availability of time command */
1483         printf("time %d %d\n", t, m);
1484     }
1485 }
1486
1487
1488 /* FIXME!  This is truly the function from hell! */
1489
1490 /*
1491  * Process the user's command. If easy mode is OFF (the computer is thinking
1492  * on opponents time) and the program is out of book, then make the 'hint'
1493  * move on the board and call SelectMove() to find a response. The user
1494  * terminates the search by entering a command. If the opponent does not make
1495  * the hint move, then set Sdepth to zero.
1496  */
1497
1498 void
1499 InputCommand(char *command)
1500 {
1501 #ifdef QUIETBACKGROUND
1502     short have_shown_prompt = false;
1503 #endif
1504     short ok, done, is_move = false;
1505     unsigned short mv;
1506     char s[80], sx[80];
1507
1508     ok = flag.quit = done = false;
1509     player = opponent;
1510
1511 #if ttblsz
1512     if (TTadd > ttbllimit)
1513         ZeroTTable();
1514 #endif
1515
1516     if ((hint > 0) && !flag.easy && !flag.force)
1517     {
1518         /*
1519          * A hint move for the player is available.  Compute a move for the
1520          * opponent in background mode assuming that the hint move will be
1521          * selected by the player.
1522          */
1523
1524         ft = time0; /* Save reference time for the player. */
1525         fflush(stdout);
1526         algbr((short) hint >> 8, (short) hint & 0xff, 0);
1527         strcpy(s, mvstr[0]);
1528
1529         if (flag.post)
1530             dsp->GiveHint();
1531
1532         /* do the hint move */
1533         if (VerifyMove(s, VERIFY_AND_TRY_MODE, &mv))
1534         {
1535             Sdepth = 0;
1536
1537 #ifdef QUIETBACKGROUND
1538             dsp->ShowPrompt();
1539             have_shown_prompt = true;
1540 #endif /* QUIETBACKGROUND */
1541
1542             /* Start computing a move until the search is interrupted. */
1543
1544 #ifdef INTERRUPT_TEST
1545             itime0 = 0;
1546 #endif
1547
1548             /* would love to put null move in here */
1549             /* after we make the hint move make a 2 ply search
1550              * with both plys our moves */
1551             /* think on opponents time */
1552             SelectMove(computer, BACKGROUND_MODE);
1553
1554 #ifdef INTERRUPT_TEST
1555             ElapsedTime(COMPUTE_INTERRUPT_MODE);
1556
1557             if (itime0 == 0)
1558             {
1559                 printf("searching not terminated by interrupt!\n");
1560             }
1561             else
1562             {
1563                 printf("elapsed time from interrupt to "
1564                        "terminating search: %ld\n", it);
1565             }
1566 #endif
1567
1568             /* undo the hint and carry on */
1569             VerifyMove(s, UNMAKE_MODE, &mv);
1570             Sdepth = 0;
1571         }
1572
1573         time0 = ft; /* Restore reference time for the player. */
1574     }
1575
1576     while(!(ok || flag.quit || done))
1577     {
1578         player = opponent;
1579
1580 #ifdef QUIETBACKGROUND
1581         if (!have_shown_prompt)
1582         {
1583 #endif /* QUIETBACKGROUND */
1584
1585             dsp->ShowPrompt();
1586
1587 #ifdef QUIETBACKGROUND
1588         }
1589
1590         have_shown_prompt = false;
1591 #endif /* QUIETBACKGROUND */
1592
1593         if (command == NULL) {
1594             int eof = dsp->GetString(sx);
1595             if (eof)
1596                 dsp->ExitShogi();
1597         } else {
1598             strcpy(sx, command);
1599             done = true;
1600         }
1601
1602         /* extract first word */
1603         if (sscanf(sx, "%s", s) < 1)
1604             continue;
1605
1606         if (strcmp(s, "bd") == 0)   /* bd -- display board */
1607         {
1608             /* FIXME: Hack alert! */
1609             short old_xshogi = XSHOGI;
1610
1611             if (old_xshogi)
1612                 display_type = DISPLAY_RAW;
1613
1614             dsp->ClearScreen();
1615             dsp->UpdateDisplay(0, 0, 1, 0);
1616
1617             if (old_xshogi)
1618                 display_type = DISPLAY_X;
1619         }
1620         else if (strcmp(s, "post") == 0)
1621         {
1622             flag.post = (xboard ? 1 : !flag.post);
1623         }
1624         else if (strcmp(s, "nopost") == 0)
1625         {
1626             flag.post = 0;
1627         }
1628 #ifdef MINISHOGI
1629         else if (strcmp(s, "variant") == 0)
1630         {   /* only variant we play is minishogi */
1631             printf("setup (P.BR.S...G.+.++.+Kp.br.s...g.+.++.+k) 5x5+5_shogi rbsgk/4p/5/P4/KGSBR [-] w 0 1\n");
1632         }
1633 #endif
1634         else if (strcmp(s, "alg") == 0 ||
1635                  strcmp(s, "accepted") == 0 || strcmp(s, "rejected") == 0 ||
1636                  strcmp(s, "variant") == 0 || strcmp(s, "computer") == 0)
1637         {
1638             /* noop */ ;
1639         }
1640         else if ((strcmp(s, "quit") == 0) ||
1641                  (strcmp(s, "exit") == 0))
1642         {
1643             flag.quit = true;
1644         }
1645         else if (strcmp(s, "xboard") == 0)
1646         {
1647             if (!xboard) {
1648                 /* xboard calls Sente "White" */
1649                 const char *tmp = ColorStr[0];
1650                 ColorStr[0] = ColorStr[1];
1651                 ColorStr[1] = tmp;
1652                 xboard = true;
1653             }
1654         }
1655         else if (strcmp(s, "protover") == 0)
1656         {
1657             printf("feature option=\"tsume -check 0\"\n");
1658             printf("feature option=\"Use hash-file -check %d\"\n", !!flag.hash);
1659             printf("feature option=\"contempt -spin %d -1000 1000\"\n", contempt);
1660             printf("feature option=\"Hash-file search depth -spin %d 0 100\"\n", HashDepth);
1661             printf("feature option=\"Hash-file move number -spin %d 0 100\"\n", HashMoveLimit);
1662             printf("feature myname=\"GNU %s %s\" ",
1663 #ifdef MINISHOGI
1664                    "MiniShogi",
1665 #else
1666                    "Shogi",
1667 #endif
1668                    PACKAGE_VERSION
1669                 );
1670             printf("variants=\"%s\" ",
1671 #ifdef MINISHOGI
1672                    "5x5+5_shogi,minishogi"
1673 #else
1674                    "shogi"
1675 #endif
1676                 );
1677             printf("debug=1 setboard=0 sigint=0 usermove=1 done=1\n");
1678         }
1679         else if ((strcmp(s, "set") == 0) ||
1680                  (strcmp(s, "edit") == 0))
1681         {
1682             dsp->EditBoard();
1683         }
1684         else if (strcmp(s, "setup") == 0)
1685         {
1686             dsp->SetupBoard();
1687         }
1688         else if (strcmp(s, "first") == 0)
1689         {
1690             ok = true;
1691         }
1692         else if (strcmp(s, "go") == 0)
1693         {
1694             ok = true;
1695             flag.force = false;
1696
1697             if (computer == black)
1698             {
1699                 computer = white;
1700                 opponent = black;
1701             }
1702             else
1703             {
1704                 computer = black;
1705                 opponent = white;
1706             }
1707         }
1708         else if (strcmp(s, "help") == 0)
1709         {
1710             dsp->help();
1711         }
1712         else if (strcmp(s, "material") == 0)
1713         {
1714             flag.material = !flag.material;
1715         }
1716         else if (strcmp(s, "force") == 0)
1717         {
1718             if (XSHOGI)
1719             {
1720                 flag.force = true;
1721                 flag.bothsides = false;
1722             }
1723             else
1724             {
1725                 flag.force = !flag.force;
1726                 flag.bothsides = false;
1727             }
1728         }
1729         else if (strcmp(s, "book") == 0)
1730         {
1731             Book = Book ? 0 : BOOKFAIL;
1732         }
1733         else if (strcmp(s, "new") == 0)
1734         {
1735             NewGame();
1736             dsp->UpdateDisplay(0, 0, 1, 0);
1737         }
1738         else if (strcmp(s, "list") == 0)
1739         {
1740             ListGame();
1741         }
1742         else if (strcmp(s, "level") == 0)
1743         {
1744             dsp->SelectLevel(sx + strlen("level"));
1745         }
1746         else if (strcmp(s, "clock") == 0)
1747         {
1748             dsp->SelectLevel(sx + strlen("clock"));
1749         }
1750         else if (strcmp(s, "hash") == 0)
1751         {
1752             flag.hash = !flag.hash;
1753         }
1754         else if (strcmp(s, "gamein") == 0)
1755         {
1756             flag.gamein = !flag.gamein;
1757         }
1758         else if (strcmp(s, "beep") == 0)
1759         {
1760             flag.beep = !flag.beep;
1761         }
1762         else if (strcmp(s, "time") == 0)
1763         {
1764             SetMachineTime(sx + strlen("time"));
1765         }
1766         else if ((strcmp(s, "otime") == 0) ||
1767                  (xboard && (strcmp(s, "otim")) == 0))
1768         {
1769             SetOppTime(sx + strlen("otime"));
1770         }
1771         else if (strcmp(s, "Awindow") == 0)
1772         {
1773             dsp->ChangeAlphaWindow();
1774         }
1775         else if (strcmp(s, "Bwindow") == 0)
1776         {
1777             dsp->ChangeBetaWindow();
1778         }
1779         else if (strcmp(s, "rcptr") == 0)
1780         {
1781             flag.rcptr = !flag.rcptr;
1782         }
1783         else if (strcmp(s, "hint") == 0)
1784         {
1785             dsp->GiveHint();
1786         }
1787         else if (strcmp(s, "both") == 0)
1788         {
1789             flag.bothsides = !flag.bothsides;
1790             flag.force = false;
1791             Sdepth = 0;
1792             ElapsedTime(COMPUTE_AND_INIT_MODE);
1793             SelectMove(opponent, FOREGROUND_MODE);
1794             ok = true;
1795         }
1796         else if (strcmp(s, "reverse") == 0)
1797         {
1798             flag.reverse = !flag.reverse;
1799             dsp->ClearScreen();
1800             dsp->UpdateDisplay(0, 0, 1, 0);
1801         }
1802         else if (strcmp(s, "switch") == 0)
1803         {
1804             computer = computer ^ 1;
1805             opponent = opponent ^ 1;
1806             xwndw = (computer == black) ? WXWNDW : BXWNDW;
1807             flag.force = false;
1808             Sdepth = 0;
1809             ok = true;
1810             dsp->UpdateDisplay(0, 0, 1, 0);
1811         }
1812         else if (xboard ? strcmp(s, "white") == 0 : strcmp(s, "black") == 0)
1813         {
1814             computer = white;
1815             opponent = black;
1816             xwndw = WXWNDW;
1817             flag.force = false;
1818             Sdepth = 0;
1819
1820             /*
1821              * ok = true; don't automatically start with black command
1822              */
1823         }
1824         else if (xboard ? strcmp(s, "black") == 0 : strcmp(s, "white") == 0)
1825         {
1826             computer = black;
1827             opponent = white;
1828             xwndw = BXWNDW;
1829             flag.force = false;
1830             Sdepth = 0;
1831
1832             /*
1833              * ok = true; don't automatically start with white command
1834              */
1835         }
1836         else if (strcmp(s, "undo") == 0 && GameCnt > 0)
1837         {
1838             Undo();
1839         }
1840         else if (strcmp(s, "remove") == 0 && GameCnt > 1)
1841         {
1842             Undo();
1843             Undo();
1844         }
1845         /* CHECKME: are these next three correct? */
1846         else if (!XSHOGI && strcmp(s, "xget") == 0)
1847         {
1848             GetXGame();
1849         }
1850         else if (!XSHOGI && strcmp(s, "xsave") == 0)
1851         {
1852             SaveXGame();
1853         }
1854         else if (!XSHOGI && strcmp(s, "bsave") == 0)
1855         {
1856             BookSave();
1857         }
1858 #ifdef EASY_OPENINGS
1859         else if ((strcmp(s, "?") == 0) ||
1860                  (strcmp(s, "!") == 0) ||
1861                  (strcmp(s, "~") == 0))
1862 #else
1863         else if ((strcmp(s, "?") == 0) ||
1864                  (strcmp(s, "!") == 0))
1865 #endif
1866         {
1867             FlagMove(*s);
1868         }
1869         else if (strcmp(s, "get") == 0)
1870         {
1871             GetGame();
1872         }
1873         else if (strcmp(s, "save") == 0)
1874         {
1875             SaveGame();
1876         }
1877         else if (strcmp(s, "depth") == 0)
1878         {
1879             dsp->ChangeSearchDepth(sx + strlen("depth"));
1880         }
1881         else if (strcmp(s, "sd") == 0)
1882         {
1883             dsp->ChangeSearchDepth(sx + strlen("sd"));
1884         }
1885         else if (strcmp(s, "hashdepth") == 0)
1886         {
1887             dsp->ChangeHashDepth();
1888         }
1889         else if (strcmp(s, "random") == 0)
1890         {
1891             dither = DITHER;
1892         }
1893         else if (strcmp(s, "hard") == 0)
1894         {
1895             flag.easy = false;
1896         }
1897         else if (strcmp(s, "easy") == 0)
1898         {
1899             flag.easy = !flag.easy;
1900         }
1901         else if (strcmp(s, "option") == 0)
1902         {
1903             do {
1904                 if (sscanf(sx, "option tsume=%hd", &flag.tsume) == 1)
1905                     break;
1906                 if (sscanf(sx, "option Use hash-file=%hd", &flag.hash) == 1)
1907                     break;
1908                 if (sscanf(sx, "option Hash-file search depth=%hd", &HashDepth) == 1)
1909                     break;
1910                 if (sscanf(sx, "option Hash-file move number=%hd", &HashMoveLimit) == 1)
1911                     break;
1912                 if (sscanf(sx, "option contempt=%hd", &contempt) == 1)
1913                     break;
1914                 dsp->AlwaysShowMessage("Unknown '%s'", sx);
1915             } while(0);
1916         }
1917         else if (strcmp(s, "tsume") == 0)
1918         {
1919             flag.tsume = !flag.tsume;
1920         }
1921         else if (strcmp(s, "contempt") == 0)
1922         {
1923             dsp->SetContempt();
1924         }
1925         else if (strcmp(s, "xwndw") == 0)
1926         {
1927             dsp->ChangeXwindow();
1928         }
1929         else if (strcmp(s, "rv") == 0)
1930         {
1931             flag.rv = !flag.rv;
1932             dsp->UpdateDisplay(0, 0, 1, 0);
1933         }
1934         else if (strcmp(s, "coords") == 0)
1935         {
1936             flag.coords = !flag.coords;
1937             dsp->UpdateDisplay(0, 0, 1, 0);
1938         }
1939         else if (strcmp(s, "stars") == 0)
1940         {
1941             flag.stars = !flag.stars;
1942             dsp->UpdateDisplay(0, 0, 1, 0);
1943         }
1944         else if (!XSHOGI && strcmp(s, "moves") == 0)
1945         {
1946             short temp;
1947
1948 #if MAXDEPTH > 3
1949             if (GameCnt > 0)
1950             {
1951                 extern unsigned short PrVar[MAXDEPTH];
1952
1953                 SwagHt = (GameList[GameCnt].gmove == PrVar[1])
1954                     ? PrVar[2] : 0;
1955             }
1956             else
1957 #endif
1958                 SwagHt = 0;
1959
1960             dsp->ShowMessage("Testing MoveList Speed");
1961             temp = generate_move_flags;
1962             generate_move_flags = true;
1963             TestSpeed(MoveList, 1);
1964             generate_move_flags = temp;
1965             dsp->ShowMessage("Testing CaptureList Speed");
1966             TestSpeed(CaptureList, 1);
1967             dsp->ShowMessage("Testing Eval Speed");
1968             ExaminePosition(opponent);
1969             TestPSpeed(ScorePosition, 1);
1970         }
1971         else if (!XSHOGI && strcmp(s, "test") == 0)
1972         {
1973 #ifdef SLOW_CPU
1974             dsp->ShowMessage("Testing MoveList Speed");
1975             TestSpeed(MoveList, 2000);
1976             dsp->ShowMessage("Testing CaptureList Speed");
1977             TestSpeed(CaptureList, 3000);
1978             dsp->ShowMessage("Testing Eval Speed");
1979             ExaminePosition(opponent);
1980             TestPSpeed(ScorePosition, 1500);
1981 #else
1982             dsp->ShowMessage("Testing MoveList Speed");
1983             TestSpeed(MoveList, 20000);
1984             dsp->ShowMessage("Testing CaptureList Speed");
1985             TestSpeed(CaptureList, 30000);
1986             dsp->ShowMessage("Testing Eval Speed");
1987             ExaminePosition(opponent);
1988             TestPSpeed(ScorePosition, 15000);
1989 #endif
1990         }
1991         else if (!XSHOGI && strcmp(s, "p") == 0)
1992         {
1993             dsp->ShowPostnValues();
1994         }
1995         else if (!XSHOGI && strcmp(s, "debug") == 0)
1996         {
1997             dsp->DoDebug();
1998         }
1999         else
2000         {
2001             if (strcmp(s, "usermove") == 0 && sx[8] == ' ')
2002                 sscanf(sx + 9, "%s", s);
2003
2004             if (flag.mate)
2005             {
2006                 ok = true;
2007             }
2008             else if ((ok = VerifyMove(s, VERIFY_AND_MAKE_MODE, &mv)))
2009             {
2010                 /* check for repetition */
2011                 short rpt = repetition();
2012
2013                 if (rpt >= 3)
2014                 {
2015                     DRAW = DRAW_REPETITION;
2016                     dsp->ShowMessage(DRAW);
2017                     GameList[GameCnt].flags |= draw;
2018
2019                         flag.mate = true;
2020                 }
2021                 else
2022                 {
2023                     is_move = true;
2024                 }
2025             }
2026
2027             Sdepth = 0;
2028         }
2029     }
2030
2031     ElapsedTime(COMPUTE_AND_INIT_MODE);
2032
2033     if (flag.force)
2034     {
2035         computer = opponent;
2036         opponent = computer ^ 1;
2037     }
2038
2039     if (XSHOGI)
2040     {
2041         /* add remaining time in milliseconds for xshogi */
2042         if (is_move)
2043         {
2044             printf("%d. %s %ld\n",
2045                    ++mycnt2, s, TimeControl.clock[player] * 10);
2046         }
2047     }
2048 }