xboard2uci.c

   1 \r
   2 // xboard2uci.c\r
   3 \r
   4 // includes\r
   5 \r
   6 #include <errno.h>\r
   7 #include <stdio.h>\r
   8 #include <stdlib.h>\r
   9 #include <string.h>\r
  10 #include <time.h>\r
  11 \r
  12 #include "board.h"\r
  13 #include "book.h"\r
  14 #include "colour.h"\r
  15 #include "engine.h"\r
  16 #include "fen.h"\r
  17 #include "game.h"\r
  18 #include "gui.h"\r
  19 #include "line.h"\r
  20 #include "main.h"\r
  21 #include "move.h"\r
  22 #include "move_do.h"\r
  23 #include "move_legal.h"\r
  24 #include "option.h"\r
  25 #include "parse.h"\r
  26 #include "san.h"\r
  27 #include "uci.h"\r
  28 #include "uci2uci.h"\r
  29 #include "util.h"\r
  30 \r
  31 // defines\r
  32 \r
  33 #define StringSize 4096\r
  34 \r
  35 // constants\r
  36 \r
  37 static const bool UseDebug = FALSE;\r
  38 static const bool DelayPong = FALSE;\r
  39 \r
  40 // types\r
  41 \r
  42 typedef struct {\r
  43    int state;\r
  44    bool computer[ColourNb];\r
  45    int exp_move;\r
  46    int resign_nb;\r
  47    my_timer_t timer[1];\r
  48 } state_t;\r
  49 \r
  50 typedef struct {\r
  51     bool has_feature_memory;\r
  52     bool has_feature_smp;\r
  53     bool has_feature_egt;\r
  54     bool analyse;\r
  55     bool computer;\r
  56     const char * name;\r
  57     bool ics;\r
  58     bool new_hack; // "new" is a C++ keyword\r
  59     bool ponder;\r
  60     int ping;\r
  61     bool post;\r
  62     int proto_ver;\r
  63     bool result;\r
  64 \r
  65     int mps;\r
  66     double base;\r
  67     double inc;\r
  68     \r
  69     bool time_limit;\r
  70     double time_max;\r
  71     \r
  72     bool depth_limit;\r
  73     int depth_max;\r
  74     \r
  75     double my_time;\r
  76     double opp_time;\r
  77 } xb_t;\r
  78 \r
  79 typedef enum { WAIT, THINK, PONDER, ANALYSE } dummy_state_t;\r
  80 \r
  81 // variables\r
  82 \r
  83 static state_t State[1];\r
  84 static xb_t XB[1];\r
  85 \r
  86 // prototypes\r
  87 \r
  88 static void comp_move      (int move);\r
  89 static void move_step      (int move);\r
  90 static void board_update   ();\r
  91 \r
  92 static void mess           ();\r
  93 static void no_mess        (int move);\r
  94 \r
  95 static void search_update  ();\r
  96 static void search_clear   ();\r
  97 static void update_remaining_time();\r
  98 static int  report_best_score();\r
  99 static bool kibitz_throttle (bool searching);\r
 100 static void start_protected_command();\r
 101 static void end_protected_command();\r
 102 \r
 103 static bool active         ();\r
 104 static bool ponder         ();\r
 105 static bool ponder_ok      (int ponder_move);\r
 106 \r
 107 static void stop_search    ();\r
 108 \r
 109 static void send_board     (int extra_move);\r
 110 static void send_pv        ();\r
 111 static void send_info      ();\r
 112 \r
 113 static void send_xboard_options ();\r
 114 \r
 115 static void learn          (int result);\r
 116 \r
 117 \r
 118 // functions\r
 119 \r
 120 // xboard2uci_init()\r
 121 \r
 122 void xboard2uci_init() {\r
 123    // init\r
 124 \r
 125    game_clear(Game);\r
 126 \r
 127    // state\r
 128 \r
 129    State->state = WAIT;\r
 130 \r
 131    State->computer[White] = FALSE;\r
 132    State->computer[Black] = TRUE;\r
 133 \r
 134    State->exp_move = MoveNone;\r
 135    State->resign_nb = 0;\r
 136    my_timer_reset(State->timer);\r
 137 \r
 138    // yes there are engines that do not have the "Hash" option....\r
 139    XB->has_feature_memory= (option_find(Uci->option,"Hash")!=NULL);\r
 140    XB->has_feature_smp = (uci_thread_option(Uci)!=NULL);\r
 141    // TODO: support for other types of table bases\r
 142    XB->has_feature_egt = (option_find(Uci->option,"NalimovPath")!=NULL);\r
 143    XB->analyse = FALSE;\r
 144    XB->computer = FALSE;\r
 145    XB->name = NULL;\r
 146    my_string_set(&XB->name,"<empty>");\r
 147    XB->ics = FALSE;\r
 148    XB->new_hack = TRUE;\r
 149    XB->ping = -1;\r
 150    XB->ponder = FALSE;\r
 151    XB->post = FALSE;\r
 152    XB->proto_ver = 1;\r
 153    XB->result = FALSE;\r
 154 \r
 155    XB->mps = 0;\r
 156    XB->base = 300.0;\r
 157    XB->inc = 0.0;\r
 158 \r
 159    XB->time_limit = FALSE;\r
 160    XB->time_max = 5.0;\r
 161 \r
 162    XB->depth_limit = FALSE;\r
 163    XB->depth_max = 127;\r
 164 \r
 165    XB->my_time = 300.0;\r
 166    XB->opp_time = 300.0;\r
 167 }\r
 168 \r
 169 // xboard2uci_gui_step()\r
 170 \r
 171 void xboard2uci_gui_step(char string[]) {\r
 172 \r
 173         int move;\r
 174         char move_string[256];\r
 175         board_t board[1];\r
 176 \r
 177                 if (FALSE) {\r
 178          \r
 179                 } else if (match(string,"accepted *")) {\r
 180 \r
 181                         // ignore\r
 182 \r
 183                 } else if (match(string,"analyze")) {\r
 184 \r
 185                         State->computer[White] = FALSE;\r
 186                         State->computer[Black] = FALSE;\r
 187 \r
 188                         XB->analyse = TRUE;\r
 189                         XB->new_hack = FALSE;\r
 190                         ASSERT(!XB->result);\r
 191                         XB->result = FALSE;\r
 192 \r
 193                         mess();\r
 194 \r
 195                 } else if (match(string,"bk")) {\r
 196 \r
 197                         if (option_get_bool(Option,"Book")) {\r
 198                                 game_get_board(Game,board);\r
 199                                 book_disp(board);\r
 200                         }\r
 201 \r
 202                 } else if (match(string,"black")) {\r
 203 \r
 204                         if (colour_is_black(game_turn(Game))) {\r
 205 \r
 206                                 State->computer[White] = TRUE;\r
 207                                 State->computer[Black] = FALSE;\r
 208 \r
 209                                 XB->new_hack = TRUE;\r
 210                                 XB->result = FALSE;\r
 211 \r
 212                                 mess();\r
 213                         }\r
 214 \r
 215                 } else if (match(string,"computer")) {\r
 216 \r
 217                         XB->computer = TRUE;\r
 218 \r
 219                 } else if (match(string,"draw")) {\r
 220                         if(option_find(Uci->option,"UCI_DrawOffers")){\r
 221                             my_log("POLYGLOT draw from XB received");\r
 222                                 uci_send_option(Uci,"DrawOffer","%s","draw");}\r
 223                 } else if (match(string,"easy")) {\r
 224 \r
 225                         XB->ponder = FALSE;\r
 226 \r
 227                         mess();\r
 228 \r
 229                 } else if (match(string,"edit")) {\r
 230 \r
 231                         // refuse\r
 232 \r
 233                         gui_send(GUI,"Error (unknown command): %s",string);\r
 234 \r
 235                 } else if (match(string,"exit")) {\r
 236 \r
 237                         State->computer[White] = FALSE;\r
 238                         State->computer[Black] = FALSE;\r
 239 \r
 240                         XB->analyse = FALSE;\r
 241 \r
 242                         mess();\r
 243 \r
 244                 } else if (match(string,"force")) {\r
 245 \r
 246                         State->computer[White] = FALSE;\r
 247                         State->computer[Black] = FALSE;\r
 248 \r
 249                         mess();\r
 250 \r
 251                 } else if (match(string,"go")) {\r
 252 \r
 253                         State->computer[game_turn(Game)] = TRUE;\r
 254                         State->computer[colour_opp(game_turn(Game))] = FALSE;\r
 255 \r
 256                         XB->new_hack = FALSE;\r
 257                         ASSERT(!XB->result);\r
 258                         XB->result = FALSE;\r
 259 \r
 260                         mess();\r
 261 \r
 262                 } else if (match(string,"hard")) {\r
 263 \r
 264                         XB->ponder = TRUE;\r
 265 \r
 266                         mess();\r
 267 \r
 268                 } else if (match(string,"hint")) {\r
 269 \r
 270                         if (option_get_bool(Option,"Book")) {\r
 271 \r
 272                                 game_get_board(Game,board);\r
 273                                 move = book_move(board,FALSE);\r
 274 \r
 275                                 if (move != MoveNone && move_is_legal(move,board)) {\r
 276                                         move_to_san(move,board,move_string,256);\r
 277                                         gui_send(GUI,"Hint: %s",move_string);\r
 278                                 }\r
 279                         }\r
 280 \r
 281                 } else if (match(string,"ics *")) {\r
 282 \r
 283                         XB->ics = TRUE;\r
 284 \r
 285                 } else if (match(string,"level * *:* *")) {\r
 286 \r
 287                         XB->mps  = atoi(Star[0]);\r
 288                         XB->base = ((double)atoi(Star[1])) * 60.0 + ((double)atoi(Star[2]));\r
 289                         XB->inc  = ((double)atoi(Star[3]));\r
 290 \r
 291                 } else if (match(string,"level * * *")) {\r
 292 \r
 293                         XB->mps  = atoi(Star[0]);\r
 294                         XB->base = ((double)atoi(Star[1])) * 60.0;\r
 295                         XB->inc  = ((double)atoi(Star[2]));\r
 296 \r
 297                 } else if (match(string,"name *")) {\r
 298 \r
 299                         my_string_set(&XB->name,Star[0]);\r
 300 \r
 301                 } else if (match(string,"new")) {\r
 302 \r
 303             uci_send_isready(Uci);\r
 304                         my_log("POLYGLOT NEW GAME\n");\r
 305 \r
 306                         option_set(Option,"Chess960","false");\r
 307 \r
 308                         game_clear(Game);\r
 309 \r
 310                         if (XB->analyse) {\r
 311                                 State->computer[White] = FALSE;\r
 312                                 State->computer[Black] = FALSE;\r
 313                         } else {\r
 314                                 State->computer[White] = FALSE;\r
 315                                 State->computer[Black] = TRUE;\r
 316                         }\r
 317 \r
 318                         XB->new_hack = TRUE;\r
 319                         XB->result = FALSE;\r
 320 \r
 321                         XB->depth_limit = FALSE;\r
 322 \r
 323                         XB->computer = FALSE;\r
 324                         my_string_set(&XB->name,"<empty>");\r
 325 \r
 326                         board_update();\r
 327                         mess();\r
 328 \r
 329                         uci_send_ucinewgame(Uci);\r
 330 \r
 331                 } else if (match(string,"nopost")) {\r
 332 \r
 333                         XB->post = FALSE;\r
 334 \r
 335                 } else if (match(string,"otim *")) {\r
 336 \r
 337                         XB->opp_time = ((double)atoi(Star[0])) / 100.0;\r
 338                         if (XB->opp_time < 0.0) XB->opp_time = 0.0;\r
 339 \r
 340                 } else if (match(string,"pause")) {\r
 341 \r
 342                         // refuse\r
 343 \r
 344                         gui_send(GUI,"Error (unknown command): %s",string);\r
 345 \r
 346                 } else if (match(string,"ping *")) {\r
 347 \r
 348                         // HACK; TODO: answer only after an engine move\r
 349 \r
 350                         if (DelayPong) {\r
 351                                 if (XB->ping >= 0) gui_send(GUI,"pong %d",XB->ping); // HACK: get rid of old ping\r
 352                                 XB->ping = atoi(Star[0]);\r
 353                                 uci_send_isready(Uci);\r
 354                         } else {\r
 355                                 ASSERT(XB->ping==-1);\r
 356                                 gui_send(GUI,"pong %s",Star[0]);\r
 357                         }\r
 358 \r
 359                 } else if (match(string,"playother")) {\r
 360 \r
 361                         State->computer[game_turn(Game)] = FALSE;\r
 362                         State->computer[colour_opp(game_turn(Game))] = TRUE;\r
 363 \r
 364                         XB->new_hack = FALSE;\r
 365                         ASSERT(!XB->result);\r
 366                         XB->result = FALSE;\r
 367 \r
 368                         mess();\r
 369 \r
 370                 } else if (match(string,"post")) {\r
 371 \r
 372                         XB->post = TRUE;\r
 373 \r
 374                 } else if (match(string,"protover *")) {\r
 375             XB->proto_ver = atoi(Star[0]);\r
 376             ASSERT(XB->proto_ver>=2);\r
 377             send_xboard_options();\r
 378 \r
 379                 } else if (match(string,"quit")) {\r
 380                         my_log("POLYGLOT *** \"quit\" from GUI ***\n");\r
 381                         quit();\r
 382                 } else if (match(string,"random")) {\r
 383 \r
 384                         // ignore\r
 385 \r
 386                 } else if (match(string,"rating * *")) {\r
 387 \r
 388                         // ignore\r
 389 \r
 390                 } else if (match(string,"remove")) {\r
 391 \r
 392                         if (game_pos(Game) >= 2) {\r
 393 \r
 394                                 game_goto(Game,game_pos(Game)-2);\r
 395 \r
 396                                 ASSERT(!XB->new_hack);\r
 397                                 XB->new_hack = FALSE; // HACK?\r
 398                                 XB->result = FALSE;\r
 399 \r
 400                                 board_update();\r
 401                                 mess();\r
 402                         }\r
 403 \r
 404                 } else if (match(string,"rejected *")) {\r
 405 \r
 406                         // ignore\r
 407 \r
 408                 } else if (match(string,"reset")) { // protover 3?\r
 409 \r
 410                         // refuse\r
 411 \r
 412                         gui_send(GUI,"Error (unknown command): %s",string);\r
 413 \r
 414                 } else if (FALSE\r
 415                         || match(string,"result * {*}")\r
 416                         || match(string,"result * {* }")\r
 417                         || match(string,"result * { *}")\r
 418                         || match(string,"result * { * }")) {\r
 419 \r
 420                                 my_log("POLYGLOT GAME END\n");\r
 421 \r
 422                                 XB->result = TRUE;\r
 423 \r
 424                                 mess();\r
 425 \r
 426                                 // book learning\r
 427 \r
 428                                 if (option_get_bool(Option,"Book") &&\r
 429                     option_get_bool(Option,"BookLearn")) {\r
 430 \r
 431                                         if (FALSE) {\r
 432                                         } else if (my_string_equal(Star[0],"1-0")) {\r
 433                                                 learn(+1);\r
 434                                         } else if (my_string_equal(Star[0],"0-1")) {\r
 435                                                 learn(-1);\r
 436                                         } else if (my_string_equal(Star[0],"1/2-1/2")) {\r
 437                                                 learn(0);\r
 438                                         }\r
 439                                 }\r
 440                 } else if (match(string,"resume")) {\r
 441 \r
 442                         // refuse\r
 443 \r
 444                         gui_send(GUI,"Error (unknown command): %s",string);\r
 445 \r
 446         } else if (match(string,"option *=*")   ||\r
 447                    match(string,"option * =*") ||\r
 448                    match(string,"option *= *") ||\r
 449                    match(string,"option * = *")\r
 450                    ){\r
 451             char *name=Star[0];\r
 452             char *value=Star[1];\r
 453             if(match(name, "Polyglot *")){\r
 454                 char *pg_name=Star[0];\r
 455                 polyglot_set_option(pg_name,value);\r
 456             }else{\r
 457                 option_t *opt=option_find(Uci->option,name);\r
 458                 if(opt){\r
 459                     if(my_string_case_equal(opt->type,"check")){\r
 460                        value=my_string_equal(value,"1")?"true":"false";\r
 461                     }\r
 462                     start_protected_command();\r
 463                     uci_send_option(Uci, name, "%s", value);\r
 464                     end_protected_command();\r
 465                 }else{\r
 466                     gui_send(GUI,"Error (unknown option): %s",name); \r
 467                 }\r
 468             }\r
 469         } else if (match(string,"option *")){\r
 470             char *name=Star[0];\r
 471             start_protected_command();\r
 472                 // value is ignored\r
 473             if(!uci_send_option(Uci, name, "%s", "<empty>")){\r
 474                gui_send(GUI,"Error (unknown option): %s",name); \r
 475             }; \r
 476             end_protected_command();\r
 477         } else if (XB->has_feature_smp && match(string,"cores *")){\r
 478                 int cores=atoi(Star[0]);\r
 479                 if(cores>=1){\r
 480                     // updating the number of cores\r
 481                     my_log("POLYGLOT setting the number of cores to %d\n",cores);\r
 482                     start_protected_command();\r
 483                     uci_set_threads(Uci,cores); \r
 484                     end_protected_command();\r
 485                 } else{\r
 486                    // refuse\r
 487                     gui_send(GUI,"Error (unknown command): %s",string);\r
 488                 }\r
 489         } else if (XB->has_feature_egt && match(string,"egtpath * *")){\r
 490                 char *type=Star[0];\r
 491                 char *path=Star[1];\r
 492                 if(!my_string_case_equal(type,"nalimov")){\r
 493                    // refuse\r
 494                     gui_send(GUI,"Error (unsupported table base format): %s",string);\r
 495                 }else if(my_string_empty(path)){\r
 496                     // refuse\r
 497                     gui_send(GUI,"Error (unknown command): %s",string);\r
 498                 }else{\r
 499                     // updating NalimovPath\r
 500                     my_log("POLYGLOT setting the Nalimov path to %s\n",path);\r
 501                     start_protected_command();\r
 502                     uci_send_option(Uci,"NalimovPath","%s",path);\r
 503                     end_protected_command();\r
 504                 }\r
 505         } else if (XB->has_feature_memory && match(string,"memory *")){\r
 506             int memory = atoi(Star[0]);\r
 507             int nalimov_cache;\r
 508             int real_memory;\r
 509             if(memory>=1){\r
 510                 // updating the available memory\r
 511                 option_t *opt;\r
 512                 my_log("POLYGLOT setting the amount of memory to %dMb\n",memory);\r
 513                 if((opt=option_find(Uci->option,"NalimovCache"))){\r
 514                     nalimov_cache=atoi(opt->value);\r
 515                 }else{\r
 516                     nalimov_cache=0;\r
 517                 }\r
 518                 my_log("POLYGLOT Nalimov Cache is %dMb\n",nalimov_cache);\r
 519                 real_memory=memory-nalimov_cache;\r
 520                 if(real_memory>0){\r
 521                     start_protected_command();\r
 522                     uci_send_option(Uci,"Hash", "%d", real_memory);\r
 523                     end_protected_command();\r
 524                 }\r
 525             }else{\r
 526                 // refuse\r
 527                 gui_send(GUI,"Error (unknown command): %s",string);\r
 528             }\r
 529 \r
 530                 } else if (match(string,"sd *")) {\r
 531 \r
 532                         XB->depth_limit = TRUE;\r
 533                         XB->depth_max = atoi(Star[0]);\r
 534 \r
 535                 } else if (match(string,"setboard *")) {\r
 536 \r
 537                         my_log("POLYGLOT FEN %s\n",Star[0]);\r
 538 \r
 539                         if (!game_init(Game,Star[0])) my_fatal("xboard_step(): bad FEN \"%s\"\n",Star[0]);\r
 540 \r
 541                         State->computer[White] = FALSE;\r
 542                         State->computer[Black] = FALSE;\r
 543 \r
 544                         XB->new_hack = TRUE; // HACK?\r
 545                         XB->result = FALSE;\r
 546 \r
 547                         board_update();\r
 548                         mess();\r
 549 \r
 550                 } else if (match(string,"st *")) {\r
 551 \r
 552                         XB->time_limit = TRUE;\r
 553                         XB->time_max = ((double)atoi(Star[0]));\r
 554 \r
 555                 } else if (match(string,"time *")) {\r
 556 \r
 557                         XB->my_time = ((double)atoi(Star[0])) / 100.0;\r
 558                         if (XB->my_time < 0.0) XB->my_time = 0.0;\r
 559 \r
 560                 } else if (match(string,"undo")) {\r
 561 \r
 562                         if (game_pos(Game) >= 1) {\r
 563 \r
 564                                 game_goto(Game,game_pos(Game)-1);\r
 565 \r
 566                                 ASSERT(!XB->new_hack);\r
 567                                 XB->new_hack = FALSE; // HACK?\r
 568                                 XB->result = FALSE;\r
 569 \r
 570                                 board_update();\r
 571                                 mess();\r
 572                         }\r
 573 \r
 574                 } else if (match(string,"usermove *")) {\r
 575 \r
 576                         game_get_board(Game,board);\r
 577                         move = move_from_san(Star[0],board);\r
 578 \r
 579                         if (move != MoveNone && move_is_legal(move,board)) {\r
 580 \r
 581                                 XB->new_hack = FALSE;\r
 582                                 ASSERT(!XB->result);\r
 583                                 XB->result = FALSE;\r
 584 \r
 585                                 move_step(move);\r
 586                                 no_mess(move);\r
 587 \r
 588                         } else {\r
 589 \r
 590                                 gui_send(GUI,"Illegal move: %s",Star[0]);\r
 591                         }\r
 592 \r
 593                 } else if (match(string,"variant *")) {\r
 594 \r
 595                         if (my_string_equal(Star[0],"fischerandom")) {\r
 596                                 option_set(Option,"Chess960","true");\r
 597                         } else {\r
 598                                 option_set(Option,"Chess960","false");\r
 599                         }\r
 600 \r
 601                 } else if (match(string,"white")) {\r
 602 \r
 603                         if (colour_is_white(game_turn(Game))) {\r
 604 \r
 605                                 State->computer[White] = FALSE;\r
 606                                 State->computer[Black] = TRUE;\r
 607 \r
 608                                 XB->new_hack = TRUE;\r
 609                                 XB->result = FALSE;\r
 610 \r
 611                                 mess();\r
 612                         }\r
 613 \r
 614                 } else if (match(string,"xboard")) {\r
 615 \r
 616                         // ignore\r
 617 \r
 618                 } else if (match(string,".")) { // analyse info\r
 619 \r
 620                         if (State->state == ANALYSE) {\r
 621                                 int depth=Uci->best_depth;//HACK: don't clear engine-output window...\r
 622 \r
 623                                 ASSERT(Uci->searching);\r
 624                                 ASSERT(Uci->pending_nb>=1);\r
 625 \r
 626                                 if (Uci->root_move != MoveNone && move_is_legal(Uci->root_move,Uci->board)) {\r
 627                                         move_to_san(Uci->root_move,Uci->board,move_string,256);\r
 628                                         gui_send(GUI,"stat01: %.0f "S64_FORMAT" %d %d %d %s",Uci->time*100.0,Uci->node_nb,/*Uci->*/depth,Uci->root_move_nb-(Uci->root_move_pos+1),Uci->root_move_nb,move_string);\r
 629                                 } else {\r
 630                                         gui_send(GUI,"stat01: %.0f "S64_FORMAT" %d %d %d",Uci->time*100.0,Uci->node_nb,/*Uci->*/depth,0,0); // HACK\r
 631                                 }\r
 632                         }\r
 633 \r
 634                 } else if (match(string,"?")) { // move now\r
 635 \r
 636                         if (State->state == THINK) {\r
 637 \r
 638                                 ASSERT(Uci->searching);\r
 639                                 ASSERT(Uci->pending_nb>=1);\r
 640 \r
 641                                 // HACK: just send "stop" to the engine\r
 642 \r
 643                                 if (Uci->searching) {\r
 644                                         my_log("POLYGLOT STOP SEARCH\n");\r
 645                                         engine_send(Engine,"stop");\r
 646                                 }\r
 647                         }\r
 648 \r
 649                 } else { // unknown command, maybe a move?\r
 650 \r
 651                         game_get_board(Game,board);\r
 652                         move = move_from_san(string,board);\r
 653 \r
 654                         if (move != MoveNone && move_is_legal(move,board)) {\r
 655 \r
 656                                 XB->new_hack = FALSE;\r
 657                                 ASSERT(!XB->result);\r
 658                                 XB->result = FALSE;\r
 659 \r
 660                                 move_step(move);\r
 661                                 no_mess(move);\r
 662 \r
 663                         } else if (move != MoveNone) {\r
 664 \r
 665                                 gui_send(GUI,"Illegal move: %s",string);\r
 666 \r
 667                         } else {\r
 668 \r
 669                                 gui_send(GUI,"Error (unknown command): %s",string);\r
 670                         }\r
 671                 }\r
 672         return;\r
 673 }\r
 674 \r
 675 // xboard2uci_engine_step()\r
 676 \r
 677 void xboard2uci_engine_step(char string[]) {\r
 678 \r
 679         int event;\r
 680     board_t board[1];\r
 681                 event = uci_parse(Uci,string);\r
 682 \r
 683                 // react to events\r
 684 \r
 685                 if ((event & EVENT_READY) != 0) {\r
 686 \r
 687                         // the engine is now ready\r
 688 \r
 689                         if (!Uci->ready) {\r
 690                                 Uci->ready = TRUE;\r
 691                     //  if (XB->proto_ver >= 2) xboard_send(XBoard,"feature done=1");\r
 692                         }\r
 693 \r
 694                         if (!DelayPong && XB->ping >= 0) {\r
 695                                 gui_send(GUI,"pong %d",XB->ping);\r
 696                                 XB->ping = -1;\r
 697                         }\r
 698                 }\r
 699 \r
 700                 if ((event & EVENT_MOVE) != 0 && State->state == THINK) {\r
 701 \r
 702                         // the engine is playing a move\r
 703 \r
 704                         // MEGA HACK: estimate remaining time because XBoard won't send it!\r
 705 \r
 706                         my_timer_stop(State->timer);\r
 707 \r
 708                         XB->my_time -= my_timer_elapsed_real(State->timer);\r
 709                         XB->my_time += XB->inc;\r
 710                         if (XB->mps != 0 && (game_move_nb(Game) + 1) % XB->mps == 0) XB->my_time += XB->base;\r
 711 \r
 712                         if (XB->my_time < 0.0) XB->my_time = 0.0;\r
 713 \r
 714                         // play the engine move\r
 715 \r
 716                         comp_move(Uci->best_move);\r
 717                 }\r
 718 \r
 719                 if ((event & EVENT_PV) != 0) {\r
 720 \r
 721                         // the engine has sent a new PV\r
 722 \r
 723                         send_pv();\r
 724                 }\r
 725                 if ((event & EVENT_INFO) != 0) {\r
 726 \r
 727                         // the engine has sent info\r
 728 \r
 729                         send_info();\r
 730                 }\r
 731                 if((event & (EVENT_DRAW|EVENT_RESIGN))!=0){\r
 732                         my_log("POYGLOT draw offer/resign from engine\n");\r
 733                         if(option_find(Uci->option,"UCI_DrawOffers")){\r
 734                                 if(event & EVENT_DRAW)\r
 735                                         gui_send(GUI,"offer draw");\r
 736                                 else\r
 737                                         gui_send(GUI,"resign");\r
 738                         }\r
 739                 }\r
 740                 if(((event & EVENT_ILLEGAL_MOVE)!=0) && (State->state == THINK)){\r
 741             game_get_board(Game,board);\r
 742             if(board->turn==White){\r
 743                 gui_send(GUI,"0-1 {polyglot: resign"\r
 744                             " (illegal engine move white)}");\r
 745             }else{\r
 746                 gui_send(GUI,"1-0 {polyglot: resign"\r
 747                          " (illegal engine move black)}");\r
 748             }\r
 749             board_disp(board);\r
 750             XB->result = TRUE;\r
 751             mess();\r
 752         }\r
 753 }\r
 754 \r
 755 // format_xboard_option_line\r
 756 \r
 757 void format_xboard_option_line(char * option_line, option_t *opt){\r
 758     int j;\r
 759     char option_string[StringSize];\r
 760     char *tmp;\r
 761     strcpy(option_line,"");\r
 762         // buffer overflow alert\r
 763     strcat(option_line,"feature option=\"");\r
 764     if(opt->mode&PG){\r
 765         strcat(option_line,"Polyglot ");\r
 766     }\r
 767     sprintf(option_string,"%s",opt->name);\r
 768     strcat(option_line,option_string);\r
 769     sprintf(option_string," -%s",opt->type);\r
 770     strcat(option_line,option_string);\r
 771     if(strcmp(opt->type,"button") && strcmp(opt->type,"combo")){\r
 772         if(strcmp(opt->type,"check")){\r
 773             sprintf(option_string," %s",opt->default_);\r
 774         }else{\r
 775             sprintf(option_string," %d",\r
 776                     my_string_case_equal(opt->default_,"true")?1:0);\r
 777         }\r
 778         strcat(option_line,option_string);\r
 779     }\r
 780     if(!strcmp(opt->type,"spin")){\r
 781         sprintf(option_string," %s",opt->min);\r
 782             strcat(option_line,option_string);\r
 783     }\r
 784     if(!strcmp(opt->type,"spin")){\r
 785         sprintf(option_string," %s",opt->max);\r
 786         strcat(option_line,option_string);\r
 787     }\r
 788     for(j=0;j<opt->var_nb;j++){\r
 789         if(!strcmp(opt->var[j],opt->default_)){\r
 790             sprintf(option_string," *%s",opt->var[j]);\r
 791         }else{\r
 792             sprintf(option_string," %s",opt->var[j]);\r
 793         }\r
 794         strcat(option_line,option_string);\r
 795         if(j!=opt->var_nb-1){\r
 796             strcat(option_line," ///");\r
 797         }\r
 798     }\r
 799     strcat(option_line,"\"");\r
 800     if(option_get_bool(Option,"WbWorkArounds") &&\r
 801        (tmp=strstr(option_line,"Draw"))){\r
 802         *tmp='d';\r
 803         my_log("POLYGLOT Decapitalizing \"Draw\" in option \"%s\"\n",\r
 804                opt->name);\r
 805     }\r
 806 }\r
 807 \r
 808 // send_xboard_options()\r
 809 \r
 810 static void send_xboard_options(){\r
 811 \r
 812     char option_line[StringSize]="";\r
 813     const char * name;\r
 814     option_t *opt;\r
 815     \r
 816     gui_send(GUI,"feature done=0");\r
 817     \r
 818     gui_send(GUI,"feature analyze=1");\r
 819     gui_send(GUI,"feature colors=0");\r
 820     gui_send(GUI,"feature draw=1");\r
 821     gui_send(GUI,"feature ics=1");\r
 822     gui_send(GUI,"feature myname=\"%s\"",\r
 823              option_get_string(Option,"EngineName"));\r
 824     gui_send(GUI,"feature name=1");\r
 825     gui_send(GUI,"feature pause=0");\r
 826     gui_send(GUI,"feature ping=1");\r
 827     gui_send(GUI,"feature playother=1");\r
 828     gui_send(GUI,"feature reuse=1");\r
 829     gui_send(GUI,"feature san=0");\r
 830     gui_send(GUI,"feature setboard=1");\r
 831     gui_send(GUI,"feature sigint=0");\r
 832     gui_send(GUI,"feature sigterm=0");\r
 833     gui_send(GUI,"feature time=1");\r
 834     gui_send(GUI,"feature usermove=1");\r
 835     if (XB->has_feature_memory){\r
 836         gui_send(GUI,"feature memory=1");\r
 837     }else{\r
 838         gui_send(GUI,"feature memory=0");\r
 839     }\r
 840     if (XB->has_feature_smp){\r
 841         gui_send(GUI,"feature smp=1");\r
 842     }else{\r
 843         gui_send(GUI,"feature smp=0");\r
 844     }\r
 845     if (XB->has_feature_egt){\r
 846             // TODO: support for other types of table bases\r
 847         gui_send(GUI,"feature egt=\"nalimov\"");\r
 848     }else{\r
 849         gui_send(GUI,"feature egt=\"\"");\r
 850     }\r
 851     \r
 852     if (option_find(Uci->option,"UCI_Chess960")) {\r
 853         gui_send(GUI,"feature variants=\"normal,fischerandom\"");\r
 854     } else {\r
 855         gui_send(GUI,"feature variants=\"normal\"");\r
 856     }\r
 857 \r
 858     option_start_iter(Uci->option);\r
 859     while((opt=option_next(Uci->option))){\r
 860         if(my_string_case_equal(opt->name,"UCI_AnalyseMode")) continue;\r
 861         if(my_string_case_equal(opt->name,"Ponder")) continue;\r
 862         if(my_string_case_equal(opt->name,"Hash")) continue;\r
 863         if(my_string_case_equal(opt->name,"NalimovPath")) continue;\r
 864         if((name=uci_thread_option(Uci))!=NULL &&\r
 865            my_string_case_equal(opt->name,name)) continue;\r
 866         \r
 867         format_xboard_option_line(option_line,opt);\r
 868         \r
 869         gui_send(GUI,"%s",option_line);\r
 870     }\r
 871 \r
 872 \r
 873     option_start_iter(Option);\r
 874     while((opt=option_next(Option))){\r
 875         if(opt->mode &XBOARD){\r
 876             format_xboard_option_line(option_line,opt);\r
 877             gui_send(GUI,"%s",option_line);\r
 878         }\r
 879     }       \r
 880     gui_send(GUI,"feature done=1"); \r
 881     \r
 882 }\r
 883 \r
 884 // report_best_score()\r
 885 \r
 886 static int report_best_score(){\r
 887     if(!option_get_bool(Option,"ScoreWhite") ||\r
 888        colour_is_white(Uci->board->turn)){\r
 889         return Uci->best_score;\r
 890     }else{\r
 891         return -Uci->best_score;\r
 892     }\r
 893 }\r
 894 \r
 895 // comp_move()\r
 896 \r
 897 static void comp_move(int move) {\r
 898 \r
 899    board_t board[1];\r
 900    char string[256];\r
 901 \r
 902    ASSERT(move_is_ok(move));\r
 903 \r
 904    ASSERT(State->state==THINK);\r
 905    ASSERT(!XB->analyse);\r
 906 \r
 907    if(option_get_bool(Option,"RepeatPV"))\r
 908            send_pv(); // to update time and nodes\r
 909 \r
 910    // send the move\r
 911 \r
 912    game_get_board(Game,board);\r
 913 \r
 914    if (move_is_castle(move,board) && option_get_bool(Option,"Chess960")) {\r
 915       if (!move_to_san(move,board,string,256)) my_fatal("comp_move(): move_to_san() failed\n"); // O-O/O-O-O\r
 916    } else {\r
 917       if (!move_to_can(move,board,string,256)) my_fatal("comp_move(): move_to_can() failed\n");\r
 918    }\r
 919 \r
 920    gui_send(GUI,"move %s",string);\r
 921 \r
 922    // resign?\r
 923 \r
 924    if (option_get_bool(Option,"Resign") && Uci->root_move_nb > 1) {\r
 925 \r
 926        if (Uci->best_score <= -abs(option_get_int(Option,"ResignScore"))) {\r
 927 \r
 928          State->resign_nb++;\r
 929          my_log("POLYGLOT %d move%s with resign score\n",State->resign_nb,(State->resign_nb>1)?"s":"");\r
 930 \r
 931          if (State->resign_nb >= option_get_int(Option,"ResignMoves")) {\r
 932             my_log("POLYGLOT *** RESIGN ***\n");\r
 933             gui_send(GUI,"resign");\r
 934          }\r
 935 \r
 936       } else {\r
 937 \r
 938          if (State->resign_nb > 0) my_log("POLYGLOT resign reset (State->resign_nb=%d)\n",State->resign_nb);\r
 939          State->resign_nb = 0;\r
 940       }\r
 941    }\r
 942 \r
 943    // play the move\r
 944 \r
 945    move_step(move);\r
 946    no_mess(move);\r
 947 }\r
 948 \r
 949 // move_step()\r
 950 \r
 951 static void move_step(int move) {\r
 952 \r
 953    board_t board[1];\r
 954    char move_string[256];\r
 955 \r
 956    ASSERT(move_is_ok(move));\r
 957 \r
 958    // log\r
 959 \r
 960    game_get_board(Game,board);\r
 961 \r
 962    if (move != MoveNone && move_is_legal(move,board)) {\r
 963 \r
 964       move_to_san(move,board,move_string,256);\r
 965       my_log("POLYGLOT MOVE %s\n",move_string);\r
 966 \r
 967    } else {\r
 968 \r
 969       move_to_can(move,board,move_string,256);\r
 970       my_log("POLYGLOT ILLEGAL MOVE \"%s\"\n",move_string);\r
 971       board_disp(board);\r
 972 \r
 973       my_fatal("move_step(): illegal move \"%s\"\n",move_string);\r
 974    }\r
 975 \r
 976    // play the move\r
 977 \r
 978    game_add_move(Game,move);\r
 979    board_update();\r
 980 }\r
 981 \r
 982 // board_update()\r
 983 \r
 984 static void board_update() {\r
 985 \r
 986    // handle game end\r
 987 \r
 988    ASSERT(!XB->result);\r
 989 \r
 990    switch (game_status(Game)) {\r
 991    case PLAYING:\r
 992       break;\r
 993    case WHITE_MATES:\r
 994       gui_send(GUI,"1-0 {White mates}");\r
 995       break;\r
 996    case BLACK_MATES:\r
 997       gui_send(GUI,"0-1 {Black mates}");\r
 998       break;\r
 999    case STALEMATE:\r
1000       gui_send(GUI,"1/2-1/2 {Stalemate}");\r
1001       break;\r
1002    case DRAW_MATERIAL:\r
1003       gui_send(GUI,"1/2-1/2 {Draw by insufficient material}");\r
1004       break;\r
1005    case DRAW_FIFTY:\r
1006       gui_send(GUI,"1/2-1/2 {Draw by fifty-move rule}");\r
1007       break;\r
1008    case DRAW_REPETITION:\r
1009       gui_send(GUI,"1/2-1/2 {Draw by repetition}");\r
1010       break;\r
1011    default:\r
1012       ASSERT(FALSE);\r
1013       break;\r
1014    }\r
1015 }\r
1016 \r
1017 // mess()\r
1018 \r
1019 static void mess() {\r
1020 \r
1021    // clear state variables\r
1022 \r
1023    State->resign_nb = 0;\r
1024    State->exp_move = MoveNone;\r
1025    my_timer_reset(State->timer);\r
1026 \r
1027    // abort a possible search\r
1028 \r
1029    stop_search();\r
1030 \r
1031    // calculate the new state\r
1032 \r
1033    if (FALSE) {\r
1034    } else if (!active()) {\r
1035       State->state = WAIT;\r
1036       my_log("POLYGLOT WAIT\n");\r
1037    } else if (XB->analyse) {\r
1038       State->state = ANALYSE;\r
1039       my_log("POLYGLOT ANALYSE\n");\r
1040    } else if (State->computer[game_turn(Game)]) {\r
1041       State->state = THINK;\r
1042       my_log("POLYGLOT THINK\n");\r
1043    } else {\r
1044       State->state = WAIT;\r
1045       my_log("POLYGLOT WAIT\n");\r
1046    }\r
1047 \r
1048    search_update();\r
1049 }\r
1050 \r
1051 // no_mess()\r
1052 \r
1053 static void no_mess(int move) {\r
1054 \r
1055    ASSERT(move_is_ok(move));\r
1056 \r
1057    // just received a move, calculate the new state\r
1058 \r
1059    if (FALSE) {\r
1060 \r
1061    } else if (!active()) {\r
1062 \r
1063       stop_search(); // abort a possible search\r
1064 \r
1065       State->state = WAIT;\r
1066       State->exp_move = MoveNone;\r
1067 \r
1068       my_log("POLYGLOT WAIT\n");\r
1069 \r
1070    } else if (State->state == WAIT) {\r
1071 \r
1072       ASSERT(State->computer[game_turn(Game)]);\r
1073       ASSERT(!State->computer[colour_opp(game_turn(Game))]);\r
1074       ASSERT(!XB->analyse);\r
1075 \r
1076       my_log("POLYGLOT WAIT -> THINK\n");\r
1077 \r
1078       State->state = THINK;\r
1079       State->exp_move = MoveNone;\r
1080 \r
1081    } else if (State->state == THINK) {\r
1082 \r
1083       ASSERT(!State->computer[game_turn(Game)]);\r
1084       ASSERT(State->computer[colour_opp(game_turn(Game))]);\r
1085       ASSERT(!XB->analyse);\r
1086 \r
1087       if (ponder() && ponder_ok(Uci->ponder_move)) {\r
1088 \r
1089          my_log("POLYGLOT THINK -> PONDER\n");\r
1090 \r
1091          State->state = PONDER;\r
1092          State->exp_move = Uci->ponder_move;\r
1093 \r
1094       } else {\r
1095 \r
1096          my_log("POLYGLOT THINK -> WAIT\n");\r
1097 \r
1098          State->state = WAIT;\r
1099          State->exp_move = MoveNone;\r
1100       }\r
1101 \r
1102    } else if (State->state == PONDER) {\r
1103 \r
1104       ASSERT(State->computer[game_turn(Game)]);\r
1105       ASSERT(!State->computer[colour_opp(game_turn(Game))]);\r
1106       ASSERT(!XB->analyse);\r
1107 \r
1108       if (move == State->exp_move && Uci->searching) {\r
1109 \r
1110          ASSERT(Uci->searching);\r
1111          ASSERT(Uci->pending_nb>=1);\r
1112 \r
1113          my_timer_start(State->timer);//also resets\r
1114 \r
1115          my_log("POLYGLOT PONDER -> THINK (*** HIT ***)\n");\r
1116          engine_send(Engine,"ponderhit");\r
1117 \r
1118          State->state = THINK;\r
1119          State->exp_move = MoveNone;\r
1120 \r
1121          send_pv(); // update display\r
1122 \r
1123          return; // do not launch a new search\r
1124 \r
1125       } else {\r
1126 \r
1127          my_log("POLYGLOT PONDER -> THINK (miss)\n");\r
1128 \r
1129          stop_search();\r
1130 \r
1131          State->state = THINK;\r
1132          State->exp_move = MoveNone;\r
1133       }\r
1134 \r
1135    } else if (State->state == ANALYSE) {\r
1136 \r
1137       ASSERT(XB->analyse);\r
1138 \r
1139       my_log("POLYGLOT ANALYSE -> ANALYSE\n");\r
1140 \r
1141       stop_search();\r
1142 \r
1143    } else {\r
1144 \r
1145       ASSERT(FALSE);\r
1146    }\r
1147 \r
1148    search_update();\r
1149 }\r
1150 \r
1151 // start_protected_command()\r
1152 \r
1153 static void start_protected_command(){\r
1154     stop_search();\r
1155 }\r
1156 \r
1157 static void end_protected_command(){\r
1158     if(Uci->ready){ // not init faze\r
1159         uci_send_isready_sync(Uci); // gobble up spurious "bestmove"\r
1160     }\r
1161     update_remaining_time();\r
1162     search_update();   // relaunch search if necessary\r
1163 }\r
1164 \r
1165 // update_remaining_time()\r
1166 \r
1167 static void update_remaining_time(){\r
1168    double reduce;\r
1169    if(State->timer->running){\r
1170        my_timer_stop(State->timer);\r
1171        reduce = my_timer_elapsed_real(State->timer);\r
1172        my_log("POLYGLOT reducing remaing time by %f seconds\n",reduce);\r
1173        XB->my_time -= reduce;\r
1174        if(XB->my_time<0.0){\r
1175            XB->my_time=0.0;\r
1176        }\r
1177    }\r
1178 }\r
1179 \r
1180 \r
1181 // search_update()\r
1182 \r
1183 static void search_update() {\r
1184 \r
1185    int move;\r
1186    int move_nb;\r
1187    board_t board[1];\r
1188 \r
1189    ASSERT(!Uci->searching);\r
1190 \r
1191 \r
1192 \r
1193    \r
1194    // launch a new search if needed\r
1195 \r
1196    \r
1197 \r
1198    if (State->state == THINK || State->state == PONDER || State->state == ANALYSE) {\r
1199 \r
1200       // opening book\r
1201 \r
1202        if (State->state == THINK && option_get_bool(Option,"Book")) {\r
1203 \r
1204          game_get_board(Game,Uci->board);\r
1205 \r
1206          move = book_move(Uci->board,option_get_bool(Option,"BookRandom"));\r
1207 \r
1208          if (move != MoveNone && move_is_legal(move,Uci->board)) {\r
1209 \r
1210             my_log("POLYGLOT *BOOK MOVE*\n");\r
1211 \r
1212             search_clear(); // clears Uci->ponder_move\r
1213             Uci->best_move = move;\r
1214 \r
1215             board_copy(board,Uci->board);\r
1216             move_do(board,move);\r
1217             Uci->ponder_move = book_move(board,FALSE); // expected move = best book move\r
1218 \r
1219             Uci->best_pv[0] = Uci->best_move;\r
1220             Uci->best_pv[1] = Uci->ponder_move; // can be MoveNone\r
1221             Uci->best_pv[2] = MoveNone;\r
1222 \r
1223             comp_move(Uci->best_move);\r
1224 \r
1225             return;\r
1226          }\r
1227       }\r
1228 \r
1229       // engine search\r
1230 \r
1231       my_log("POLYGLOT START SEARCH\n");\r
1232 \r
1233       // options\r
1234 \r
1235       uci_send_option(Uci,"UCI_Chess960","%s",\r
1236                       option_get_bool(Option,"Chess960")?"true":"false");\r
1237 \r
1238       if (option_get_int(Option,"UCIVersion") >= 2) {\r
1239          uci_send_option(Uci,"UCI_Opponent","none none %s %s",(XB->computer)?"computer":"human",XB->name);\r
1240          uci_send_option(Uci,"UCI_AnalyseMode","%s",(XB->analyse)?"true":"false");\r
1241       }\r
1242 \r
1243       uci_send_option(Uci,"Ponder","%s",ponder()?"true":"false");\r
1244 \r
1245       // position\r
1246 \r
1247       move = (State->state == PONDER) ? State->exp_move : MoveNone;\r
1248       send_board(move); // updates Uci->board global variable\r
1249 \r
1250       // search\r
1251 \r
1252       if (State->state == THINK || State->state == PONDER) {\r
1253 \r
1254          engine_send_queue(Engine,"go");\r
1255 \r
1256          if (XB->time_limit) {\r
1257 \r
1258             // fixed time per move\r
1259 \r
1260             engine_send_queue(Engine," movetime %.0f",XB->time_max*1000.0);\r
1261 \r
1262          } else {\r
1263 \r
1264             // time controls\r
1265 \r
1266             if (colour_is_white(Uci->board->turn)) {\r
1267                engine_send_queue(Engine," wtime %.0f btime %.0f",XB->my_time*1000.0,XB->opp_time*1000.0);\r
1268             } else {\r
1269                engine_send_queue(Engine," wtime %.0f btime %.0f",XB->opp_time*1000.0,XB->my_time*1000.0);\r
1270             }\r
1271 \r
1272             if (XB->inc != 0.0) engine_send_queue(Engine," winc %.0f binc %.0f",XB->inc*1000.0,XB->inc*1000.0);\r
1273 \r
1274             if (XB->mps != 0) {\r
1275 \r
1276                move_nb = XB->mps - (Uci->board->move_nb % XB->mps);\r
1277                ASSERT(move_nb>=1&&move_nb<=XB->mps);\r
1278 \r
1279                engine_send_queue(Engine," movestogo %d",move_nb);\r
1280             }\r
1281          }\r
1282 \r
1283          if (XB->depth_limit) engine_send_queue(Engine," depth %d",XB->depth_max);\r
1284 \r
1285          if (State->state == PONDER) engine_send_queue(Engine," ponder");\r
1286 \r
1287          engine_send(Engine,""); // newline\r
1288 \r
1289       } else if (State->state == ANALYSE) {\r
1290 \r
1291          engine_send(Engine,"go infinite");\r
1292 \r
1293       } else {\r
1294 \r
1295          ASSERT(FALSE);\r
1296       }\r
1297 \r
1298       // init search info\r
1299 \r
1300       ASSERT(!Uci->searching);\r
1301 \r
1302       search_clear();\r
1303 \r
1304       Uci->searching = TRUE;\r
1305       Uci->pending_nb++;\r
1306    }\r
1307 }\r
1308 \r
1309 // search_clear()\r
1310 \r
1311 static void search_clear() {\r
1312 \r
1313    uci_clear(Uci);\r
1314 \r
1315    // TODO: MOVE ME\r
1316 \r
1317    my_timer_start(State->timer);//also resets\r
1318 }\r
1319 \r
1320 // active()\r
1321 \r
1322 static bool active() {\r
1323 \r
1324    // position state\r
1325 \r
1326    if (game_status(Game) != PLAYING) return FALSE; // game ended\r
1327 \r
1328    // xboard state\r
1329 \r
1330    if (XB->analyse) return TRUE; // analysing\r
1331    if (!State->computer[White] && !State->computer[Black]) return FALSE; // force mode\r
1332    if (XB->new_hack || XB->result) return FALSE; // unstarted or ended game\r
1333 \r
1334    return TRUE; // playing\r
1335 }\r
1336 \r
1337 // ponder()\r
1338 \r
1339 static bool ponder() {\r
1340 \r
1341     return XB->ponder && (option_get_bool(Option,"CanPonder") ||\r
1342                           option_find(Uci->option,"Ponder"));\r
1343 }\r
1344 // ponder_ok()\r
1345 \r
1346 static bool ponder_ok(int move) {\r
1347    int status;\r
1348    board_t board[1];\r
1349 \r
1350    ASSERT(move==MoveNone||move_is_ok(move));\r
1351 \r
1352    // legal ponder move?\r
1353 \r
1354    if (move == MoveNone) return FALSE;\r
1355 \r
1356    game_get_board(Game,board);\r
1357    if (!move_is_legal(move,board)) return FALSE;\r
1358 \r
1359    // UCI-legal resulting position?\r
1360 \r
1361    game_add_move(Game,move);\r
1362 \r
1363    game_get_board(Game,board);\r
1364    status = game_status(Game);\r
1365 \r
1366    game_rem_move(Game);\r
1367 \r
1368    if (status != PLAYING) return FALSE; // game ended\r
1369 \r
1370    if (option_get_bool(Option,"Book") && is_in_book(board)) {\r
1371       return FALSE;\r
1372    }\r
1373 \r
1374    return TRUE;\r
1375 }\r
1376 \r
1377 // stop_search()\r
1378 \r
1379 static void stop_search() {\r
1380 \r
1381    if (Uci->searching) {\r
1382 \r
1383       ASSERT(Uci->searching);\r
1384       ASSERT(Uci->pending_nb>=1);\r
1385 \r
1386       my_log("POLYGLOT STOP SEARCH\n");\r
1387 \r
1388 /*\r
1389       engine_send(Engine,"stop");\r
1390       Uci->searching = FALSE;\r
1391 */\r
1392 \r
1393       if (option_get_bool(Option,"SyncStop")) {\r
1394          uci_send_stop_sync(Uci);\r
1395       } else {\r
1396          uci_send_stop(Uci);\r
1397       }\r
1398         }\r
1399 }\r
1400 \r
1401 // send_board()\r
1402 \r
1403 static void send_board(int extra_move) {\r
1404 \r
1405    char fen[256];\r
1406    int start, end;\r
1407    board_t board[1];\r
1408    int pos;\r
1409    int move;\r
1410    char string[256];\r
1411 \r
1412    ASSERT(extra_move==MoveNone||move_is_ok(extra_move));\r
1413 \r
1414    ASSERT(!Uci->searching);\r
1415 \r
1416    // init\r
1417 \r
1418    game_get_board(Game,Uci->board);\r
1419    if (extra_move != MoveNone) move_do(Uci->board,extra_move);\r
1420 \r
1421    board_to_fen(Uci->board,fen,256);\r
1422    my_log("POLYGLOT FEN %s\n",fen);\r
1423 \r
1424    ASSERT(board_can_play(Uci->board));\r
1425 \r
1426    // more init\r
1427 \r
1428    start = 0;\r
1429    end = game_pos(Game);\r
1430    ASSERT(end>=start);\r
1431 \r
1432    // position\r
1433 \r
1434    game_get_board_ex(Game,board,start);\r
1435    board_to_fen(board,string,256);\r
1436 \r
1437    engine_send_queue(Engine,"position");\r
1438 \r
1439    if (my_string_equal(string,StartFen)) {\r
1440       engine_send_queue(Engine," startpos");\r
1441    } else {\r
1442       engine_send_queue(Engine," fen %s",string);\r
1443    }\r
1444 \r
1445    // move list\r
1446 \r
1447    if (end > start || extra_move != MoveNone) engine_send_queue(Engine," moves");\r
1448 \r
1449    for (pos = start; pos < end; pos++) { // game moves\r
1450 \r
1451       move = game_move(Game,pos);\r
1452 \r
1453       move_to_can(move,board,string,256);\r
1454       engine_send_queue(Engine," %s",string);\r
1455 \r
1456       move_do(board,move);\r
1457    }\r
1458 \r
1459    if (extra_move != MoveNone) { // move to ponder on\r
1460       move_to_can(extra_move,board,string,256);\r
1461       engine_send_queue(Engine," %s",string);\r
1462    }\r
1463 \r
1464    // end\r
1465 \r
1466    engine_send(Engine,""); // newline\r
1467 }\r
1468 \r
1469 // send_info()\r
1470 \r
1471 static void send_info() {\r
1472     int min_depth;\r
1473     if(option_get_bool(Option,"WbWorkArounds2")){\r
1474             // Silly bug in some versions of WinBoard.\r
1475             // depth <=1 clears the engine output window.\r
1476             // Why shouldn't an engine be allowed to send info at depth 1?\r
1477         min_depth=2;\r
1478     }else{\r
1479         min_depth=1;\r
1480     }\r
1481     gui_send(GUI,"%d %+d %.0f "S64_FORMAT" %s",Uci->best_depth>min_depth?Uci->best_depth:min_depth,\r
1482                  0,0,0.0,0,Uci->info);  \r
1483 }\r
1484 \r
1485 // send_pv()\r
1486 \r
1487 static void send_pv() {\r
1488 \r
1489    char pv_string[StringSize];\r
1490    board_t board[1];\r
1491    int move;\r
1492    char move_string[StringSize];\r
1493 \r
1494    ASSERT(State->state!=WAIT);\r
1495 \r
1496    if (Uci->best_depth == 0) return;\r
1497 \r
1498    // xboard search information\r
1499 \r
1500    if (XB->post) {\r
1501 \r
1502       if (State->state == THINK || State->state == ANALYSE) {\r
1503 \r
1504          line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1505 \r
1506                  if(Uci->depth==-1) //hack to clear the engine output window\r
1507              gui_send(GUI,"%d %+d %.0f "S64_FORMAT" ",0,report_best_score(),Uci->time*100.0,Uci->node_nb);\r
1508 \r
1509                  gui_send(GUI,"%d %+d %.0f "S64_FORMAT" %s",Uci->best_depth,report_best_score(),Uci->time*100.0,Uci->node_nb,pv_string);\r
1510 \r
1511       } else if (State->state == PONDER &&\r
1512                  option_get_bool(Option,"ShowPonder")) {\r
1513 \r
1514          game_get_board(Game,board);\r
1515          move = State->exp_move;\r
1516 \r
1517          if (move != MoveNone && move_is_legal(move,board)) {\r
1518             move_to_san(move,board,move_string,256);\r
1519             line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1520             gui_send(GUI,"%d %+d %.0f "S64_FORMAT" (%s) %s",Uci->best_depth,report_best_score(),Uci->time*100.0,Uci->node_nb,move_string,pv_string);\r
1521          }\r
1522       }\r
1523    }\r
1524 \r
1525    // kibitz\r
1526 \r
1527    if ((Uci->searching &&\r
1528         option_get_bool(Option,"KibitzPV") &&\r
1529         Uci->time >= option_get_double(Option,"KibitzDelay"))\r
1530        || (!Uci->searching && option_get_bool(Option,"KibitzMove"))) {\r
1531 \r
1532       if (State->state == THINK || State->state == ANALYSE) {\r
1533 \r
1534          line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1535          if(kibitz_throttle(Uci->searching)){\r
1536              gui_send(GUI,"%s depth=%d time=%.2f node="S64_FORMAT" speed=%.0f score=%+.2f pv=\"%s\"",option_get_string(Option,"KibitzCommand"),Uci->best_depth,Uci->time,Uci->node_nb,Uci->speed,((double)report_best_score())/100.0,pv_string);\r
1537          }\r
1538       } else if (State->state == PONDER) {\r
1539 \r
1540          game_get_board(Game,board);\r
1541          move = State->exp_move;\r
1542 \r
1543          if (move != MoveNone && move_is_legal(move,board)) {\r
1544             move_to_san(move,board,move_string,256);\r
1545             line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1546             if(kibitz_throttle(Uci->searching)){\r
1547                 gui_send(GUI,"%s depth=%d time=%.2f node="S64_FORMAT" speed=%.0f score=%+.2f pv=\"(%s) %s\"",option_get_string(Option,"KibitzCommand"),Uci->best_depth,Uci->time,Uci->node_nb,Uci->speed,((double)report_best_score())/100.0,move_string,pv_string);\r
1548             }\r
1549          }\r
1550       }\r
1551    }\r
1552 }\r
1553 \r
1554 // kibitz_throttle()\r
1555 \r
1556 static bool kibitz_throttle(bool searching){\r
1557     time_t curr_time;\r
1558     static time_t lastKibitzMove=0;\r
1559     static time_t lastKibitzPV=0;\r
1560     curr_time = time(NULL);\r
1561     if(searching){   // KibitzPV\r
1562         if(curr_time >=\r
1563            (option_get_int(Option,"KibitzInterval") + lastKibitzPV)){\r
1564             lastKibitzPV=curr_time;\r
1565             return TRUE;\r
1566         }\r
1567     }else{       // KibitzMove\r
1568         if(curr_time >=\r
1569            (option_get_int(Option,"KibitzInterval") + lastKibitzMove)){\r
1570             lastKibitzPV=curr_time;\r
1571             lastKibitzMove=curr_time;\r
1572             return TRUE;\r
1573         }        \r
1574     }\r
1575     return FALSE;\r
1576 }\r
1577 \r
1578 // learn()\r
1579 \r
1580 static void learn(int result) {\r
1581 \r
1582    int pos;\r
1583    board_t board[1];\r
1584    int move;\r
1585 \r
1586    ASSERT(result>=-1&&result<=+1);\r
1587 \r
1588    ASSERT(XB->result);\r
1589    ASSERT(State->computer[White]||State->computer[Black]);\r
1590 \r
1591    // init\r
1592 \r
1593    pos = 0;\r
1594 \r
1595    if (FALSE) {\r
1596    } else if (State->computer[White]) {\r
1597       pos = 0;\r
1598    } else if (State->computer[Black]) {\r
1599       pos = 1;\r
1600       result = -result;\r
1601    } else {\r
1602       my_fatal("learn(): unknown side\n");\r
1603    }\r
1604 \r
1605    if (FALSE) {\r
1606    } else if (result > 0) {\r
1607       my_log("POLYGLOT *LEARN WIN*\n");\r
1608    } else if (result < 0) {\r
1609       my_log("POLYGLOT *LEARN LOSS*\n");\r
1610    } else {\r
1611       my_log("POLYGLOT *LEARN DRAW*\n");\r
1612    }\r
1613 \r
1614    // loop\r
1615 \r
1616    for (; pos < Game->size; pos += 2) {\r
1617 \r
1618       game_get_board_ex(Game,board,pos);\r
1619       move = game_move(Game,pos);\r
1620 \r
1621       book_learn_move(board,move,result);\r
1622    }\r
1623 \r
1624    book_flush();\r
1625 }\r
1626 \r
1627 // end of xboard2uci.c\r