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                 start_protected_command();\r
 458                 if(!uci_send_option(Uci, name, "%s", value)){\r
 459                     gui_send(GUI,"Error (unknown option): %s",name); \r
 460                 }\r
 461                 end_protected_command();\r
 462             }\r
 463         } else if (match(string,"option *")){\r
 464             char *name=Star[0];\r
 465             start_protected_command();\r
 466                 // value is ignored\r
 467             if(!uci_send_option(Uci, name, "%s", "<empty>")){\r
 468                gui_send(GUI,"Error (unknown option): %s",name); \r
 469             }; \r
 470             end_protected_command();\r
 471         } else if (XB->has_feature_smp && match(string,"cores *")){\r
 472                 int cores=atoi(Star[0]);\r
 473                 if(cores>=1){\r
 474                     // updating the number of cores\r
 475                     my_log("POLYGLOT setting the number of cores to %d\n",cores);\r
 476                     start_protected_command();\r
 477                     uci_set_threads(Uci,cores); \r
 478                     end_protected_command();\r
 479                 } else{\r
 480                    // refuse\r
 481                     gui_send(GUI,"Error (unknown command): %s",string);\r
 482                 }\r
 483         } else if (XB->has_feature_egt && match(string,"egtpath * *")){\r
 484                 char *type=Star[0];\r
 485                 char *path=Star[1];\r
 486                 if(!my_string_case_equal(type,"nalimov")){\r
 487                    // refuse\r
 488                     gui_send(GUI,"Error (unsupported table base format): %s",string);\r
 489                 }else if(my_string_empty(path)){\r
 490                     // refuse\r
 491                     gui_send(GUI,"Error (unknown command): %s",string);\r
 492                 }else{\r
 493                     // updating NalimovPath\r
 494                     my_log("POLYGLOT setting the Nalimov path to %s\n",path);\r
 495                     start_protected_command();\r
 496                     uci_send_option(Uci,"NalimovPath","%s",path);\r
 497                     end_protected_command();\r
 498                 }\r
 499         } else if (XB->has_feature_memory && match(string,"memory *")){\r
 500             int memory = atoi(Star[0]);\r
 501             int nalimov_cache;\r
 502             int real_memory;\r
 503             if(memory>=1){\r
 504                 // updating the available memory\r
 505                 option_t *opt;\r
 506                 my_log("POLYGLOT setting the amount of memory to %dMb\n",memory);\r
 507                 if((opt=option_find(Uci->option,"NalimovCache"))){\r
 508                     nalimov_cache=atoi(opt->value);\r
 509                 }else{\r
 510                     nalimov_cache=0;\r
 511                 }\r
 512                 my_log("POLYGLOT Nalimov Cache is %dMb\n",nalimov_cache);\r
 513                 real_memory=memory-nalimov_cache;\r
 514                 if(real_memory>0){\r
 515                     start_protected_command();\r
 516                     uci_send_option(Uci,"Hash", "%d", real_memory);\r
 517                     end_protected_command();\r
 518                 }\r
 519             }else{\r
 520                 // refuse\r
 521                 gui_send(GUI,"Error (unknown command): %s",string);\r
 522             }\r
 523 \r
 524                 } else if (match(string,"sd *")) {\r
 525 \r
 526                         XB->depth_limit = TRUE;\r
 527                         XB->depth_max = atoi(Star[0]);\r
 528 \r
 529                 } else if (match(string,"setboard *")) {\r
 530 \r
 531                         my_log("POLYGLOT FEN %s\n",Star[0]);\r
 532 \r
 533                         if (!game_init(Game,Star[0])) my_fatal("xboard_step(): bad FEN \"%s\"\n",Star[0]);\r
 534 \r
 535                         State->computer[White] = FALSE;\r
 536                         State->computer[Black] = FALSE;\r
 537 \r
 538                         XB->new_hack = TRUE; // HACK?\r
 539                         XB->result = FALSE;\r
 540 \r
 541                         board_update();\r
 542                         mess();\r
 543 \r
 544                 } else if (match(string,"st *")) {\r
 545 \r
 546                         XB->time_limit = TRUE;\r
 547                         XB->time_max = ((double)atoi(Star[0]));\r
 548 \r
 549                 } else if (match(string,"time *")) {\r
 550 \r
 551                         XB->my_time = ((double)atoi(Star[0])) / 100.0;\r
 552                         if (XB->my_time < 0.0) XB->my_time = 0.0;\r
 553 \r
 554                 } else if (match(string,"undo")) {\r
 555 \r
 556                         if (game_pos(Game) >= 1) {\r
 557 \r
 558                                 game_goto(Game,game_pos(Game)-1);\r
 559 \r
 560                                 ASSERT(!XB->new_hack);\r
 561                                 XB->new_hack = FALSE; // HACK?\r
 562                                 XB->result = FALSE;\r
 563 \r
 564                                 board_update();\r
 565                                 mess();\r
 566                         }\r
 567 \r
 568                 } else if (match(string,"usermove *")) {\r
 569 \r
 570                         game_get_board(Game,board);\r
 571                         move = move_from_san(Star[0],board);\r
 572 \r
 573                         if (move != MoveNone && move_is_legal(move,board)) {\r
 574 \r
 575                                 XB->new_hack = FALSE;\r
 576                                 ASSERT(!XB->result);\r
 577                                 XB->result = FALSE;\r
 578 \r
 579                                 move_step(move);\r
 580                                 no_mess(move);\r
 581 \r
 582                         } else {\r
 583 \r
 584                                 gui_send(GUI,"Illegal move: %s",Star[0]);\r
 585                         }\r
 586 \r
 587                 } else if (match(string,"variant *")) {\r
 588 \r
 589                         if (my_string_equal(Star[0],"fischerandom")) {\r
 590                                 option_set(Option,"Chess960","true");\r
 591                         } else {\r
 592                                 option_set(Option,"Chess960","false");\r
 593                         }\r
 594 \r
 595                 } else if (match(string,"white")) {\r
 596 \r
 597                         if (colour_is_white(game_turn(Game))) {\r
 598 \r
 599                                 State->computer[White] = FALSE;\r
 600                                 State->computer[Black] = TRUE;\r
 601 \r
 602                                 XB->new_hack = TRUE;\r
 603                                 XB->result = FALSE;\r
 604 \r
 605                                 mess();\r
 606                         }\r
 607 \r
 608                 } else if (match(string,"xboard")) {\r
 609 \r
 610                         // ignore\r
 611 \r
 612                 } else if (match(string,".")) { // analyse info\r
 613 \r
 614                         if (State->state == ANALYSE) {\r
 615                                 int depth=Uci->best_depth;//HACK: don't clear engine-output window...\r
 616 \r
 617                                 ASSERT(Uci->searching);\r
 618                                 ASSERT(Uci->pending_nb>=1);\r
 619 \r
 620                                 if (Uci->root_move != MoveNone && move_is_legal(Uci->root_move,Uci->board)) {\r
 621                                         move_to_san(Uci->root_move,Uci->board,move_string,256);\r
 622                                         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
 623                                 } else {\r
 624                                         gui_send(GUI,"stat01: %.0f "S64_FORMAT" %d %d %d",Uci->time*100.0,Uci->node_nb,/*Uci->*/depth,0,0); // HACK\r
 625                                 }\r
 626                         }\r
 627 \r
 628                 } else if (match(string,"?")) { // move now\r
 629 \r
 630                         if (State->state == THINK) {\r
 631 \r
 632                                 ASSERT(Uci->searching);\r
 633                                 ASSERT(Uci->pending_nb>=1);\r
 634 \r
 635                                 // HACK: just send "stop" to the engine\r
 636 \r
 637                                 if (Uci->searching) {\r
 638                                         my_log("POLYGLOT STOP SEARCH\n");\r
 639                                         engine_send(Engine,"stop");\r
 640                                 }\r
 641                         }\r
 642 \r
 643                 } else { // unknown command, maybe a move?\r
 644 \r
 645                         game_get_board(Game,board);\r
 646                         move = move_from_san(string,board);\r
 647 \r
 648                         if (move != MoveNone && move_is_legal(move,board)) {\r
 649 \r
 650                                 XB->new_hack = FALSE;\r
 651                                 ASSERT(!XB->result);\r
 652                                 XB->result = FALSE;\r
 653 \r
 654                                 move_step(move);\r
 655                                 no_mess(move);\r
 656 \r
 657                         } else if (move != MoveNone) {\r
 658 \r
 659                                 gui_send(GUI,"Illegal move: %s",string);\r
 660 \r
 661                         } else {\r
 662 \r
 663                                 gui_send(GUI,"Error (unknown command): %s",string);\r
 664                         }\r
 665                 }\r
 666         return;\r
 667 }\r
 668 \r
 669 // xboard2uci_engine_step()\r
 670 \r
 671 void xboard2uci_engine_step(char string[]) {\r
 672 \r
 673         int event;\r
 674     board_t board[1];\r
 675                 event = uci_parse(Uci,string);\r
 676 \r
 677                 // react to events\r
 678 \r
 679                 if ((event & EVENT_READY) != 0) {\r
 680 \r
 681                         // the engine is now ready\r
 682 \r
 683                         if (!Uci->ready) {\r
 684                                 Uci->ready = TRUE;\r
 685                     //  if (XB->proto_ver >= 2) xboard_send(XBoard,"feature done=1");\r
 686                         }\r
 687 \r
 688                         if (!DelayPong && XB->ping >= 0) {\r
 689                                 gui_send(GUI,"pong %d",XB->ping);\r
 690                                 XB->ping = -1;\r
 691                         }\r
 692                 }\r
 693 \r
 694                 if ((event & EVENT_MOVE) != 0 && State->state == THINK) {\r
 695 \r
 696                         // the engine is playing a move\r
 697 \r
 698                         // MEGA HACK: estimate remaining time because XBoard won't send it!\r
 699 \r
 700                         my_timer_stop(State->timer);\r
 701 \r
 702                         XB->my_time -= my_timer_elapsed_real(State->timer);\r
 703                         XB->my_time += XB->inc;\r
 704                         if (XB->mps != 0 && (game_move_nb(Game) + 1) % XB->mps == 0) XB->my_time += XB->base;\r
 705 \r
 706                         if (XB->my_time < 0.0) XB->my_time = 0.0;\r
 707 \r
 708                         // play the engine move\r
 709 \r
 710                         comp_move(Uci->best_move);\r
 711                 }\r
 712 \r
 713                 if ((event & EVENT_PV) != 0) {\r
 714 \r
 715                         // the engine has sent a new PV\r
 716 \r
 717                         send_pv();\r
 718                 }\r
 719                 if ((event & EVENT_INFO) != 0) {\r
 720 \r
 721                         // the engine has sent info\r
 722 \r
 723                         send_info();\r
 724                 }\r
 725                 if((event & (EVENT_DRAW|EVENT_RESIGN))!=0){\r
 726                         my_log("POYGLOT draw offer/resign from engine\n");\r
 727                         if(option_find(Uci->option,"UCI_DrawOffers")){\r
 728                                 if(event & EVENT_DRAW)\r
 729                                         gui_send(GUI,"offer draw");\r
 730                                 else\r
 731                                         gui_send(GUI,"resign");\r
 732                         }\r
 733                 }\r
 734                 if(((event & EVENT_ILLEGAL_MOVE)!=0) && (State->state == THINK)){\r
 735             game_get_board(Game,board);\r
 736             if(board->turn==White){\r
 737                 gui_send(GUI,"0-1 {polyglot: resign"\r
 738                             " (illegal engine move white)}");\r
 739             }else{\r
 740                 gui_send(GUI,"1-0 {polyglot: resign"\r
 741                          " (illegal engine move black)}");\r
 742             }\r
 743             XB->result = TRUE;\r
 744             mess();\r
 745         }\r
 746 }\r
 747 \r
 748 // format_xboard_option_line\r
 749 \r
 750 void format_xboard_option_line(char * option_line, option_t *opt){\r
 751     int j;\r
 752     char option_string[StringSize];\r
 753     char *tmp;\r
 754     strcpy(option_line,"");\r
 755         // buffer overflow alert\r
 756     strcat(option_line,"feature option=\"");\r
 757     if(opt->mode&PG){\r
 758         strcat(option_line,"Polyglot ");\r
 759     }\r
 760     sprintf(option_string,"%s",opt->name);\r
 761     strcat(option_line,option_string);\r
 762     sprintf(option_string," -%s",opt->type);\r
 763     strcat(option_line,option_string);\r
 764     if(strcmp(opt->type,"button") && strcmp(opt->type,"combo")){\r
 765         if(strcmp(opt->type,"check")){\r
 766             sprintf(option_string," %s",opt->default_);\r
 767         }else{\r
 768             sprintf(option_string," %d",\r
 769                     my_string_case_equal(opt->default_,"true")?1:0);\r
 770         }\r
 771         strcat(option_line,option_string);\r
 772     }\r
 773     if(!strcmp(opt->type,"spin")){\r
 774         sprintf(option_string," %s",opt->min);\r
 775             strcat(option_line,option_string);\r
 776     }\r
 777     if(!strcmp(opt->type,"spin")){\r
 778         sprintf(option_string," %s",opt->max);\r
 779         strcat(option_line,option_string);\r
 780     }\r
 781     for(j=0;j<opt->var_nb;j++){\r
 782         if(!strcmp(opt->var[j],opt->default_)){\r
 783             sprintf(option_string," *%s",opt->var[j]);\r
 784         }else{\r
 785             sprintf(option_string," %s",opt->var[j]);\r
 786         }\r
 787         strcat(option_line,option_string);\r
 788         if(j!=opt->var_nb-1){\r
 789             strcat(option_line," ///");\r
 790         }\r
 791     }\r
 792     strcat(option_line,"\"");\r
 793     if(option_get_bool(Option,"WbWorkArounds") &&\r
 794        (tmp=strstr(option_line,"Draw"))){\r
 795         *tmp='d';\r
 796         my_log("POLYGLOT Decapitalizing \"Draw\" in option \"%s\"\n",\r
 797                opt->name);\r
 798     }\r
 799 }\r
 800 \r
 801 // send_xboard_options()\r
 802 \r
 803 static void send_xboard_options(){\r
 804 \r
 805     char option_line[StringSize]="";\r
 806     const char * name;\r
 807     option_t *opt;\r
 808     \r
 809     gui_send(GUI,"feature done=0");\r
 810     \r
 811     gui_send(GUI,"feature analyze=1");\r
 812     gui_send(GUI,"feature colors=0");\r
 813     gui_send(GUI,"feature draw=1");\r
 814     gui_send(GUI,"feature ics=1");\r
 815     gui_send(GUI,"feature myname=\"%s\"",\r
 816              option_get_string(Option,"EngineName"));\r
 817     gui_send(GUI,"feature name=1");\r
 818     gui_send(GUI,"feature pause=0");\r
 819     gui_send(GUI,"feature ping=1");\r
 820     gui_send(GUI,"feature playother=1");\r
 821     gui_send(GUI,"feature reuse=1");\r
 822     gui_send(GUI,"feature san=0");\r
 823     gui_send(GUI,"feature setboard=1");\r
 824     gui_send(GUI,"feature sigint=0");\r
 825     gui_send(GUI,"feature sigterm=0");\r
 826     gui_send(GUI,"feature time=1");\r
 827     gui_send(GUI,"feature usermove=1");\r
 828     if (XB->has_feature_memory){\r
 829         gui_send(GUI,"feature memory=1");\r
 830     }else{\r
 831         gui_send(GUI,"feature memory=0");\r
 832     }\r
 833     if (XB->has_feature_smp){\r
 834         gui_send(GUI,"feature smp=1");\r
 835     }else{\r
 836         gui_send(GUI,"feature smp=0");\r
 837     }\r
 838     if (XB->has_feature_egt){\r
 839             // TODO: support for other types of table bases\r
 840         gui_send(GUI,"feature egt=\"nalimov\"");\r
 841     }else{\r
 842         gui_send(GUI,"feature egt=\"\"");\r
 843     }\r
 844     \r
 845     if (option_find(Uci->option,"UCI_Chess960")) {\r
 846         gui_send(GUI,"feature variants=\"normal,fischerandom\"");\r
 847     } else {\r
 848         gui_send(GUI,"feature variants=\"normal\"");\r
 849     }\r
 850 \r
 851     option_start_iter(Uci->option);\r
 852     while((opt=option_next(Uci->option))){\r
 853         if(my_string_case_equal(opt->name,"UCI_AnalyseMode")) continue;\r
 854         if(my_string_case_equal(opt->name,"Ponder")) continue;\r
 855         if(my_string_case_equal(opt->name,"Hash")) continue;\r
 856         if(my_string_case_equal(opt->name,"NalimovPath")) continue;\r
 857         if((name=uci_thread_option(Uci))!=NULL &&\r
 858            my_string_case_equal(opt->name,name)) continue;\r
 859         \r
 860         format_xboard_option_line(option_line,opt);\r
 861         \r
 862         gui_send(GUI,"%s",option_line);\r
 863     }\r
 864 \r
 865 \r
 866     option_start_iter(Option);\r
 867     while((opt=option_next(Option))){\r
 868         if(opt->mode &XBOARD){\r
 869             format_xboard_option_line(option_line,opt);\r
 870             gui_send(GUI,"%s",option_line);\r
 871         }\r
 872     }       \r
 873     gui_send(GUI,"feature done=1"); \r
 874     \r
 875 }\r
 876 \r
 877 // report_best_score()\r
 878 \r
 879 static int report_best_score(){\r
 880     if(!option_get_bool(Option,"ScoreWhite") ||\r
 881        colour_is_white(Uci->board->turn)){\r
 882         return Uci->best_score;\r
 883     }else{\r
 884         return -Uci->best_score;\r
 885     }\r
 886 }\r
 887 \r
 888 // comp_move()\r
 889 \r
 890 static void comp_move(int move) {\r
 891 \r
 892    board_t board[1];\r
 893    char string[256];\r
 894 \r
 895    ASSERT(move_is_ok(move));\r
 896 \r
 897    ASSERT(State->state==THINK);\r
 898    ASSERT(!XB->analyse);\r
 899 \r
 900    if(option_get_bool(Option,"RepeatPV"))\r
 901            send_pv(); // to update time and nodes\r
 902 \r
 903    // send the move\r
 904 \r
 905    game_get_board(Game,board);\r
 906 \r
 907    if (move_is_castle(move,board) && option_get_bool(Option,"Chess960")) {\r
 908       if (!move_to_san(move,board,string,256)) my_fatal("comp_move(): move_to_san() failed\n"); // O-O/O-O-O\r
 909    } else {\r
 910       if (!move_to_can(move,board,string,256)) my_fatal("comp_move(): move_to_can() failed\n");\r
 911    }\r
 912 \r
 913    gui_send(GUI,"move %s",string);\r
 914 \r
 915    // resign?\r
 916 \r
 917    if (option_get_bool(Option,"Resign") && Uci->root_move_nb > 1) {\r
 918 \r
 919        if (Uci->best_score <= -abs(option_get_int(Option,"ResignScore"))) {\r
 920 \r
 921          State->resign_nb++;\r
 922          my_log("POLYGLOT %d move%s with resign score\n",State->resign_nb,(State->resign_nb>1)?"s":"");\r
 923 \r
 924          if (State->resign_nb >= option_get_int(Option,"ResignMoves")) {\r
 925             my_log("POLYGLOT *** RESIGN ***\n");\r
 926             gui_send(GUI,"resign");\r
 927          }\r
 928 \r
 929       } else {\r
 930 \r
 931          if (State->resign_nb > 0) my_log("POLYGLOT resign reset (State->resign_nb=%d)\n",State->resign_nb);\r
 932          State->resign_nb = 0;\r
 933       }\r
 934    }\r
 935 \r
 936    // play the move\r
 937 \r
 938    move_step(move);\r
 939    no_mess(move);\r
 940 }\r
 941 \r
 942 // move_step()\r
 943 \r
 944 static void move_step(int move) {\r
 945 \r
 946    board_t board[1];\r
 947    char move_string[256];\r
 948 \r
 949    ASSERT(move_is_ok(move));\r
 950 \r
 951    // log\r
 952 \r
 953    game_get_board(Game,board);\r
 954 \r
 955    if (move != MoveNone && move_is_legal(move,board)) {\r
 956 \r
 957       move_to_san(move,board,move_string,256);\r
 958       my_log("POLYGLOT MOVE %s\n",move_string);\r
 959 \r
 960    } else {\r
 961 \r
 962       move_to_can(move,board,move_string,256);\r
 963       my_log("POLYGLOT ILLEGAL MOVE \"%s\"\n",move_string);\r
 964       board_disp(board);\r
 965 \r
 966       my_fatal("move_step(): illegal move \"%s\"\n",move_string);\r
 967    }\r
 968 \r
 969    // play the move\r
 970 \r
 971    game_add_move(Game,move);\r
 972    board_update();\r
 973 }\r
 974 \r
 975 // board_update()\r
 976 \r
 977 static void board_update() {\r
 978 \r
 979    // handle game end\r
 980 \r
 981    ASSERT(!XB->result);\r
 982 \r
 983    switch (game_status(Game)) {\r
 984    case PLAYING:\r
 985       break;\r
 986    case WHITE_MATES:\r
 987       gui_send(GUI,"1-0 {White mates}");\r
 988       break;\r
 989    case BLACK_MATES:\r
 990       gui_send(GUI,"0-1 {Black mates}");\r
 991       break;\r
 992    case STALEMATE:\r
 993       gui_send(GUI,"1/2-1/2 {Stalemate}");\r
 994       break;\r
 995    case DRAW_MATERIAL:\r
 996       gui_send(GUI,"1/2-1/2 {Draw by insufficient material}");\r
 997       break;\r
 998    case DRAW_FIFTY:\r
 999       gui_send(GUI,"1/2-1/2 {Draw by fifty-move rule}");\r
1000       break;\r
1001    case DRAW_REPETITION:\r
1002       gui_send(GUI,"1/2-1/2 {Draw by repetition}");\r
1003       break;\r
1004    default:\r
1005       ASSERT(FALSE);\r
1006       break;\r
1007    }\r
1008 }\r
1009 \r
1010 // mess()\r
1011 \r
1012 static void mess() {\r
1013 \r
1014    // clear state variables\r
1015 \r
1016    State->resign_nb = 0;\r
1017    State->exp_move = MoveNone;\r
1018    my_timer_reset(State->timer);\r
1019 \r
1020    // abort a possible search\r
1021 \r
1022    stop_search();\r
1023 \r
1024    // calculate the new state\r
1025 \r
1026    if (FALSE) {\r
1027    } else if (!active()) {\r
1028       State->state = WAIT;\r
1029       my_log("POLYGLOT WAIT\n");\r
1030    } else if (XB->analyse) {\r
1031       State->state = ANALYSE;\r
1032       my_log("POLYGLOT ANALYSE\n");\r
1033    } else if (State->computer[game_turn(Game)]) {\r
1034       State->state = THINK;\r
1035       my_log("POLYGLOT THINK\n");\r
1036    } else {\r
1037       State->state = WAIT;\r
1038       my_log("POLYGLOT WAIT\n");\r
1039    }\r
1040 \r
1041    search_update();\r
1042 }\r
1043 \r
1044 // no_mess()\r
1045 \r
1046 static void no_mess(int move) {\r
1047 \r
1048    ASSERT(move_is_ok(move));\r
1049 \r
1050    // just received a move, calculate the new state\r
1051 \r
1052    if (FALSE) {\r
1053 \r
1054    } else if (!active()) {\r
1055 \r
1056       stop_search(); // abort a possible search\r
1057 \r
1058       State->state = WAIT;\r
1059       State->exp_move = MoveNone;\r
1060 \r
1061       my_log("POLYGLOT WAIT\n");\r
1062 \r
1063    } else if (State->state == WAIT) {\r
1064 \r
1065       ASSERT(State->computer[game_turn(Game)]);\r
1066       ASSERT(!State->computer[colour_opp(game_turn(Game))]);\r
1067       ASSERT(!XB->analyse);\r
1068 \r
1069       my_log("POLYGLOT WAIT -> THINK\n");\r
1070 \r
1071       State->state = THINK;\r
1072       State->exp_move = MoveNone;\r
1073 \r
1074    } else if (State->state == THINK) {\r
1075 \r
1076       ASSERT(!State->computer[game_turn(Game)]);\r
1077       ASSERT(State->computer[colour_opp(game_turn(Game))]);\r
1078       ASSERT(!XB->analyse);\r
1079 \r
1080       if (ponder() && ponder_ok(Uci->ponder_move)) {\r
1081 \r
1082          my_log("POLYGLOT THINK -> PONDER\n");\r
1083 \r
1084          State->state = PONDER;\r
1085          State->exp_move = Uci->ponder_move;\r
1086 \r
1087       } else {\r
1088 \r
1089          my_log("POLYGLOT THINK -> WAIT\n");\r
1090 \r
1091          State->state = WAIT;\r
1092          State->exp_move = MoveNone;\r
1093       }\r
1094 \r
1095    } else if (State->state == PONDER) {\r
1096 \r
1097       ASSERT(State->computer[game_turn(Game)]);\r
1098       ASSERT(!State->computer[colour_opp(game_turn(Game))]);\r
1099       ASSERT(!XB->analyse);\r
1100 \r
1101       if (move == State->exp_move && Uci->searching) {\r
1102 \r
1103          ASSERT(Uci->searching);\r
1104          ASSERT(Uci->pending_nb>=1);\r
1105 \r
1106          my_timer_start(State->timer);//also resets\r
1107 \r
1108          my_log("POLYGLOT PONDER -> THINK (*** HIT ***)\n");\r
1109          engine_send(Engine,"ponderhit");\r
1110 \r
1111          State->state = THINK;\r
1112          State->exp_move = MoveNone;\r
1113 \r
1114          send_pv(); // update display\r
1115 \r
1116          return; // do not launch a new search\r
1117 \r
1118       } else {\r
1119 \r
1120          my_log("POLYGLOT PONDER -> THINK (miss)\n");\r
1121 \r
1122          stop_search();\r
1123 \r
1124          State->state = THINK;\r
1125          State->exp_move = MoveNone;\r
1126       }\r
1127 \r
1128    } else if (State->state == ANALYSE) {\r
1129 \r
1130       ASSERT(XB->analyse);\r
1131 \r
1132       my_log("POLYGLOT ANALYSE -> ANALYSE\n");\r
1133 \r
1134       stop_search();\r
1135 \r
1136    } else {\r
1137 \r
1138       ASSERT(FALSE);\r
1139    }\r
1140 \r
1141    search_update();\r
1142 }\r
1143 \r
1144 // start_protected_command()\r
1145 \r
1146 static void start_protected_command(){\r
1147     stop_search();\r
1148 }\r
1149 \r
1150 static void end_protected_command(){\r
1151     if(Uci->ready){ // not init faze\r
1152         uci_send_isready_sync(Uci); // gobble up spurious "bestmove"\r
1153     }\r
1154     update_remaining_time();\r
1155     search_update();   // relaunch search if necessary\r
1156 }\r
1157 \r
1158 // update_remaining_time()\r
1159 \r
1160 static void update_remaining_time(){\r
1161    double reduce;\r
1162    if(State->timer->running){\r
1163        my_timer_stop(State->timer);\r
1164        reduce = my_timer_elapsed_real(State->timer);\r
1165        my_log("POLYGLOT reducing remaing time by %f seconds\n",reduce);\r
1166        XB->my_time -= reduce;\r
1167        if(XB->my_time<0.0){\r
1168            XB->my_time=0.0;\r
1169        }\r
1170    }\r
1171 }\r
1172 \r
1173 \r
1174 // search_update()\r
1175 \r
1176 static void search_update() {\r
1177 \r
1178    int move;\r
1179    int move_nb;\r
1180    board_t board[1];\r
1181 \r
1182    ASSERT(!Uci->searching);\r
1183 \r
1184 \r
1185 \r
1186    \r
1187    // launch a new search if needed\r
1188 \r
1189    \r
1190 \r
1191    if (State->state == THINK || State->state == PONDER || State->state == ANALYSE) {\r
1192 \r
1193       // opening book\r
1194 \r
1195        if (State->state == THINK && option_get_bool(Option,"Book")) {\r
1196 \r
1197          game_get_board(Game,Uci->board);\r
1198 \r
1199          move = book_move(Uci->board,option_get_bool(Option,"BookRandom"));\r
1200 \r
1201          if (move != MoveNone && move_is_legal(move,Uci->board)) {\r
1202 \r
1203             my_log("POLYGLOT *BOOK MOVE*\n");\r
1204 \r
1205             search_clear(); // clears Uci->ponder_move\r
1206             Uci->best_move = move;\r
1207 \r
1208             board_copy(board,Uci->board);\r
1209             move_do(board,move);\r
1210             Uci->ponder_move = book_move(board,FALSE); // expected move = best book move\r
1211 \r
1212             Uci->best_pv[0] = Uci->best_move;\r
1213             Uci->best_pv[1] = Uci->ponder_move; // can be MoveNone\r
1214             Uci->best_pv[2] = MoveNone;\r
1215 \r
1216             comp_move(Uci->best_move);\r
1217 \r
1218             return;\r
1219          }\r
1220       }\r
1221 \r
1222       // engine search\r
1223 \r
1224       my_log("POLYGLOT START SEARCH\n");\r
1225 \r
1226       // options\r
1227 \r
1228       uci_send_option(Uci,"UCI_Chess960","%s",\r
1229                       option_get_bool(Option,"Chess960")?"true":"false");\r
1230 \r
1231       if (option_get_int(Option,"UCIVersion") >= 2) {\r
1232          uci_send_option(Uci,"UCI_Opponent","none none %s %s",(XB->computer)?"computer":"human",XB->name);\r
1233          uci_send_option(Uci,"UCI_AnalyseMode","%s",(XB->analyse)?"true":"false");\r
1234       }\r
1235 \r
1236       uci_send_option(Uci,"Ponder","%s",ponder()?"true":"false");\r
1237 \r
1238       // position\r
1239 \r
1240       move = (State->state == PONDER) ? State->exp_move : MoveNone;\r
1241       send_board(move); // updates Uci->board global variable\r
1242 \r
1243       // search\r
1244 \r
1245       if (State->state == THINK || State->state == PONDER) {\r
1246 \r
1247          engine_send_queue(Engine,"go");\r
1248 \r
1249          if (XB->time_limit) {\r
1250 \r
1251             // fixed time per move\r
1252 \r
1253             engine_send_queue(Engine," movetime %.0f",XB->time_max*1000.0);\r
1254 \r
1255          } else {\r
1256 \r
1257             // time controls\r
1258 \r
1259             if (colour_is_white(Uci->board->turn)) {\r
1260                engine_send_queue(Engine," wtime %.0f btime %.0f",XB->my_time*1000.0,XB->opp_time*1000.0);\r
1261             } else {\r
1262                engine_send_queue(Engine," wtime %.0f btime %.0f",XB->opp_time*1000.0,XB->my_time*1000.0);\r
1263             }\r
1264 \r
1265             if (XB->inc != 0.0) engine_send_queue(Engine," winc %.0f binc %.0f",XB->inc*1000.0,XB->inc*1000.0);\r
1266 \r
1267             if (XB->mps != 0) {\r
1268 \r
1269                move_nb = XB->mps - (Uci->board->move_nb % XB->mps);\r
1270                ASSERT(move_nb>=1&&move_nb<=XB->mps);\r
1271 \r
1272                engine_send_queue(Engine," movestogo %d",move_nb);\r
1273             }\r
1274          }\r
1275 \r
1276          if (XB->depth_limit) engine_send_queue(Engine," depth %d",XB->depth_max);\r
1277 \r
1278          if (State->state == PONDER) engine_send_queue(Engine," ponder");\r
1279 \r
1280          engine_send(Engine,""); // newline\r
1281 \r
1282       } else if (State->state == ANALYSE) {\r
1283 \r
1284          engine_send(Engine,"go infinite");\r
1285 \r
1286       } else {\r
1287 \r
1288          ASSERT(FALSE);\r
1289       }\r
1290 \r
1291       // init search info\r
1292 \r
1293       ASSERT(!Uci->searching);\r
1294 \r
1295       search_clear();\r
1296 \r
1297       Uci->searching = TRUE;\r
1298       Uci->pending_nb++;\r
1299    }\r
1300 }\r
1301 \r
1302 // search_clear()\r
1303 \r
1304 static void search_clear() {\r
1305 \r
1306    uci_clear(Uci);\r
1307 \r
1308    // TODO: MOVE ME\r
1309 \r
1310    my_timer_start(State->timer);//also resets\r
1311 }\r
1312 \r
1313 // active()\r
1314 \r
1315 static bool active() {\r
1316 \r
1317    // position state\r
1318 \r
1319    if (game_status(Game) != PLAYING) return FALSE; // game ended\r
1320 \r
1321    // xboard state\r
1322 \r
1323    if (XB->analyse) return TRUE; // analysing\r
1324    if (!State->computer[White] && !State->computer[Black]) return FALSE; // force mode\r
1325    if (XB->new_hack || XB->result) return FALSE; // unstarted or ended game\r
1326 \r
1327    return TRUE; // playing\r
1328 }\r
1329 \r
1330 // ponder()\r
1331 \r
1332 static bool ponder() {\r
1333 \r
1334     return XB->ponder && (option_get_bool(Option,"CanPonder") ||\r
1335                           option_find(Uci->option,"Ponder"));\r
1336 }\r
1337 // ponder_ok()\r
1338 \r
1339 static bool ponder_ok(int move) {\r
1340    int status;\r
1341    board_t board[1];\r
1342 \r
1343    ASSERT(move==MoveNone||move_is_ok(move));\r
1344 \r
1345    // legal ponder move?\r
1346 \r
1347    if (move == MoveNone) return FALSE;\r
1348 \r
1349    game_get_board(Game,board);\r
1350    if (!move_is_legal(move,board)) return FALSE;\r
1351 \r
1352    // UCI-legal resulting position?\r
1353 \r
1354    game_add_move(Game,move);\r
1355 \r
1356    game_get_board(Game,board);\r
1357    status = game_status(Game);\r
1358 \r
1359    game_rem_move(Game);\r
1360 \r
1361    if (status != PLAYING) return FALSE; // game ended\r
1362 \r
1363    if (option_get_bool(Option,"Book") && is_in_book(board)) {\r
1364       return FALSE;\r
1365    }\r
1366 \r
1367    return TRUE;\r
1368 }\r
1369 \r
1370 // stop_search()\r
1371 \r
1372 static void stop_search() {\r
1373 \r
1374    if (Uci->searching) {\r
1375 \r
1376       ASSERT(Uci->searching);\r
1377       ASSERT(Uci->pending_nb>=1);\r
1378 \r
1379       my_log("POLYGLOT STOP SEARCH\n");\r
1380 \r
1381 /*\r
1382       engine_send(Engine,"stop");\r
1383       Uci->searching = FALSE;\r
1384 */\r
1385 \r
1386       if (option_get_bool(Option,"SyncStop")) {\r
1387          uci_send_stop_sync(Uci);\r
1388       } else {\r
1389          uci_send_stop(Uci);\r
1390       }\r
1391         }\r
1392 }\r
1393 \r
1394 // send_board()\r
1395 \r
1396 static void send_board(int extra_move) {\r
1397 \r
1398    char fen[256];\r
1399    int start, end;\r
1400    board_t board[1];\r
1401    int pos;\r
1402    int move;\r
1403    char string[256];\r
1404 \r
1405    ASSERT(extra_move==MoveNone||move_is_ok(extra_move));\r
1406 \r
1407    ASSERT(!Uci->searching);\r
1408 \r
1409    // init\r
1410 \r
1411    game_get_board(Game,Uci->board);\r
1412    if (extra_move != MoveNone) move_do(Uci->board,extra_move);\r
1413 \r
1414    board_to_fen(Uci->board,fen,256);\r
1415    my_log("POLYGLOT FEN %s\n",fen);\r
1416 \r
1417    ASSERT(board_can_play(Uci->board));\r
1418 \r
1419    // more init\r
1420 \r
1421    start = 0;\r
1422    end = game_pos(Game);\r
1423    ASSERT(end>=start);\r
1424 \r
1425    // position\r
1426 \r
1427    game_get_board_ex(Game,board,start);\r
1428    board_to_fen(board,string,256);\r
1429 \r
1430    engine_send_queue(Engine,"position");\r
1431 \r
1432    if (my_string_equal(string,StartFen)) {\r
1433       engine_send_queue(Engine," startpos");\r
1434    } else {\r
1435       engine_send_queue(Engine," fen %s",string);\r
1436    }\r
1437 \r
1438    // move list\r
1439 \r
1440    if (end > start || extra_move != MoveNone) engine_send_queue(Engine," moves");\r
1441 \r
1442    for (pos = start; pos < end; pos++) { // game moves\r
1443 \r
1444       move = game_move(Game,pos);\r
1445 \r
1446       move_to_can(move,board,string,256);\r
1447       engine_send_queue(Engine," %s",string);\r
1448 \r
1449       move_do(board,move);\r
1450    }\r
1451 \r
1452    if (extra_move != MoveNone) { // move to ponder on\r
1453       move_to_can(extra_move,board,string,256);\r
1454       engine_send_queue(Engine," %s",string);\r
1455    }\r
1456 \r
1457    // end\r
1458 \r
1459    engine_send(Engine,""); // newline\r
1460 }\r
1461 \r
1462 // send_info()\r
1463 \r
1464 static void send_info() {\r
1465     int min_depth;\r
1466     if(option_get_bool(Option,"WbWorkArounds")){\r
1467             // Silly bug in some versions of WinBoard.\r
1468             // depth <=1 clears the engine output window.\r
1469             // Why shouldn't an engine be allowed to send info at depth 1?\r
1470         min_depth=2;\r
1471     }else{\r
1472         min_depth=1;\r
1473     }\r
1474     gui_send(GUI,"%d %+d %.0f "S64_FORMAT" %s",Uci->best_depth>min_depth?Uci->best_depth:min_depth,\r
1475                  0,0,0.0,0,Uci->info);  \r
1476 }\r
1477 \r
1478 // send_pv()\r
1479 \r
1480 static void send_pv() {\r
1481 \r
1482    char pv_string[StringSize];\r
1483    board_t board[1];\r
1484    int move;\r
1485    char move_string[StringSize];\r
1486 \r
1487    ASSERT(State->state!=WAIT);\r
1488 \r
1489    if (Uci->best_depth == 0) return;\r
1490 \r
1491    // xboard search information\r
1492 \r
1493    if (XB->post) {\r
1494 \r
1495       if (State->state == THINK || State->state == ANALYSE) {\r
1496 \r
1497          line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1498 \r
1499                  if(Uci->depth==-1) //hack to clear the engine output window\r
1500              gui_send(GUI,"%d %+d %.0f "S64_FORMAT" ",0,report_best_score(),Uci->time*100.0,Uci->node_nb);\r
1501 \r
1502                  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
1503 \r
1504       } else if (State->state == PONDER &&\r
1505                  option_get_bool(Option,"ShowPonder")) {\r
1506 \r
1507          game_get_board(Game,board);\r
1508          move = State->exp_move;\r
1509 \r
1510          if (move != MoveNone && move_is_legal(move,board)) {\r
1511             move_to_san(move,board,move_string,256);\r
1512             line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1513             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
1514          }\r
1515       }\r
1516    }\r
1517 \r
1518    // kibitz\r
1519 \r
1520    if ((Uci->searching &&\r
1521         option_get_bool(Option,"KibitzPV") &&\r
1522         Uci->time >= option_get_double(Option,"KibitzDelay"))\r
1523        || (!Uci->searching && option_get_bool(Option,"KibitzMove"))) {\r
1524 \r
1525       if (State->state == THINK || State->state == ANALYSE) {\r
1526 \r
1527          line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1528          if(kibitz_throttle(Uci->searching)){\r
1529              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
1530          }\r
1531       } else if (State->state == PONDER) {\r
1532 \r
1533          game_get_board(Game,board);\r
1534          move = State->exp_move;\r
1535 \r
1536          if (move != MoveNone && move_is_legal(move,board)) {\r
1537             move_to_san(move,board,move_string,256);\r
1538             line_to_san(Uci->best_pv,Uci->board,pv_string,StringSize);\r
1539             if(kibitz_throttle(Uci->searching)){\r
1540                 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
1541             }\r
1542          }\r
1543       }\r
1544    }\r
1545 }\r
1546 \r
1547 // kibitz_throttle()\r
1548 \r
1549 static bool kibitz_throttle(bool searching){\r
1550     time_t curr_time;\r
1551     static time_t lastKibitzMove=0;\r
1552     static time_t lastKibitzPV=0;\r
1553     curr_time = time(NULL);\r
1554     if(searching){   // KibitzPV\r
1555         if(curr_time >=\r
1556            (option_get_int(Option,"KibitzInterval") + lastKibitzPV)){\r
1557             lastKibitzPV=curr_time;\r
1558             return TRUE;\r
1559         }\r
1560     }else{       // KibitzMove\r
1561         if(curr_time >=\r
1562            (option_get_int(Option,"KibitzInterval") + lastKibitzMove)){\r
1563             lastKibitzPV=curr_time;\r
1564             lastKibitzMove=curr_time;\r
1565             return TRUE;\r
1566         }        \r
1567     }\r
1568     return FALSE;\r
1569 }\r
1570 \r
1571 // learn()\r
1572 \r
1573 static void learn(int result) {\r
1574 \r
1575    int pos;\r
1576    board_t board[1];\r
1577    int move;\r
1578 \r
1579    ASSERT(result>=-1&&result<=+1);\r
1580 \r
1581    ASSERT(XB->result);\r
1582    ASSERT(State->computer[White]||State->computer[Black]);\r
1583 \r
1584    // init\r
1585 \r
1586    pos = 0;\r
1587 \r
1588    if (FALSE) {\r
1589    } else if (State->computer[White]) {\r
1590       pos = 0;\r
1591    } else if (State->computer[Black]) {\r
1592       pos = 1;\r
1593       result = -result;\r
1594    } else {\r
1595       my_fatal("learn(): unknown side\n");\r
1596    }\r
1597 \r
1598    if (FALSE) {\r
1599    } else if (result > 0) {\r
1600       my_log("POLYGLOT *LEARN WIN*\n");\r
1601    } else if (result < 0) {\r
1602       my_log("POLYGLOT *LEARN LOSS*\n");\r
1603    } else {\r
1604       my_log("POLYGLOT *LEARN DRAW*\n");\r
1605    }\r
1606 \r
1607    // loop\r
1608 \r
1609    for (; pos < Game->size; pos += 2) {\r
1610 \r
1611       game_get_board_ex(Game,board,pos);\r
1612       move = game_move(Game,pos);\r
1613 \r
1614       book_learn_move(board,move,result);\r
1615    }\r
1616 \r
1617    book_flush();\r
1618 }\r
1619 \r
1620 // end of xboard2uci.c\r