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