2 * backend.c -- Common back end for X and Windows NT versions of
5 * Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts.
6 * Enhancements Copyright 1992-2001 Free Software Foundation, Inc.
8 * The following terms apply to Digital Equipment Corporation's copyright
10 * ------------------------------------------------------------------------
13 * Permission to use, copy, modify, and distribute this software and its
14 * documentation for any purpose and without fee is hereby granted,
15 * provided that the above copyright notice appear in all copies and that
16 * both that copyright notice and this permission notice appear in
17 * supporting documentation, and that the name of Digital not be
18 * used in advertising or publicity pertaining to distribution of the
19 * software without specific, written prior permission.
21 * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
22 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
23 * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
24 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
25 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
26 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
28 * ------------------------------------------------------------------------
30 * The following terms apply to the enhanced version of XBoard distributed
31 * by the Free Software Foundation:
32 * ------------------------------------------------------------------------
33 * This program is free software; you can redistribute it and/or modify
34 * it under the terms of the GNU General Public License as published by
35 * the Free Software Foundation; either version 2 of the License, or
36 * (at your option) any later version.
38 * This program is distributed in the hope that it will be useful,
39 * but WITHOUT ANY WARRANTY; without even the implied warranty of
40 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
41 * GNU General Public License for more details.
43 * You should have received a copy of the GNU General Public License
44 * along with this program; if not, write to the Free Software
45 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 * ------------------------------------------------------------------------
48 * See the file ChangeLog for a revision history. */
55 #include <sys/types.h>
62 #else /* not STDC_HEADERS */
65 # else /* not HAVE_STRING_H */
67 # endif /* not HAVE_STRING_H */
68 #endif /* not STDC_HEADERS */
71 # include <sys/fcntl.h>
72 #else /* not HAVE_SYS_FCNTL_H */
75 # endif /* HAVE_FCNTL_H */
76 #endif /* not HAVE_SYS_FCNTL_H */
78 #if TIME_WITH_SYS_TIME
79 # include <sys/time.h>
83 # include <sys/time.h>
89 #if defined(_amigados) && !defined(__GNUC__)
94 extern int gettimeofday(struct timeval *, struct timezone *);
102 #include "frontend.h"
109 #include "backendz.h"
111 /* A point in time */
113 long sec; /* Assuming this is >= 32 bits */
114 int ms; /* Assuming this is >= 16 bits */
117 /* Search stats from chessprogram */
119 char movelist[MSG_SIZ]; /* Last PV we were sent */
120 int depth; /* Current search depth */
121 int nr_moves; /* Total nr of root moves */
122 int moves_left; /* Moves remaining to be searched */
123 char move_name[MOVE_LEN]; /* Current move being searched, if provided */
124 unsigned long nodes; /* # of nodes searched */
125 int time; /* Search time (centiseconds) */
126 int score; /* Score (centipawns) */
127 int got_only_move; /* If last msg was "(only move)" */
128 int got_fail; /* 0 - nothing, 1 - got "--", 2 - got "++" */
129 int ok_to_send; /* handshaking between send & recv */
130 int line_is_book; /* 1 if movelist is book moves */
131 int seen_stat; /* 1 if we've seen the stat01: line */
134 int establish P((void));
135 void read_from_player P((InputSourceRef isr, VOIDSTAR closure,
136 char *buf, int count, int error));
137 void read_from_ics P((InputSourceRef isr, VOIDSTAR closure,
138 char *buf, int count, int error));
139 void SendToICS P((char *s));
140 void SendToICSDelayed P((char *s, long msdelay));
141 void SendMoveToICS P((ChessMove moveType, int fromX, int fromY,
143 void InitPosition P((int redraw));
144 void HandleMachineMove P((char *message, ChessProgramState *cps));
145 int AutoPlayOneMove P((void));
146 int LoadGameOneMove P((ChessMove readAhead));
147 int LoadGameFromFile P((char *filename, int n, char *title, int useList));
148 int LoadPositionFromFile P((char *filename, int n, char *title));
149 int SavePositionToFile P((char *filename));
150 void ApplyMove P((int fromX, int fromY, int toX, int toY, int promoChar,
152 void MakeMove P((int fromX, int fromY, int toX, int toY, int promoChar));
153 void ShowMove P((int fromX, int fromY, int toX, int toY));
154 void FinishMove P((ChessMove moveType, int fromX, int fromY, int toX, int toY,
155 /*char*/int promoChar));
156 void BackwardInner P((int target));
157 void ForwardInner P((int target));
158 void GameEnds P((ChessMove result, char *resultDetails, int whosays));
159 void EditPositionDone P((void));
160 void PrintOpponents P((FILE *fp));
161 void PrintPosition P((FILE *fp, int move));
162 void StartChessProgram P((ChessProgramState *cps));
163 void SendToProgram P((char *message, ChessProgramState *cps));
164 void SendMoveToProgram P((int moveNum, ChessProgramState *cps));
165 void ReceiveFromProgram P((InputSourceRef isr, VOIDSTAR closure,
166 char *buf, int count, int error));
167 void SendTimeControl P((ChessProgramState *cps,
168 int mps, long tc, int inc, int sd, int st));
169 char *TimeControlTagValue P((void));
170 void Attention P((ChessProgramState *cps));
171 void FeedMovesToProgram P((ChessProgramState *cps, int upto));
172 void ResurrectChessProgram P((void));
173 void DisplayComment P((int moveNumber, char *text));
174 void DisplayMove P((int moveNumber));
175 void DisplayAnalysis P((void));
177 void ParseGameHistory P((char *game));
178 void ParseBoard12 P((char *string));
179 void StartClocks P((void));
180 void SwitchClocks P((void));
181 void StopClocks P((void));
182 void ResetClocks P((void));
183 char *PGNDate P((void));
184 void SetGameInfo P((void));
185 Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen));
186 int RegisterMove P((void));
187 void MakeRegisteredMove P((void));
188 void TruncateGame P((void));
189 int looking_at P((char *, int *, char *));
190 void CopyPlayerNameIntoFileName P((char **, char *));
191 char *SavePart P((char *));
192 int SaveGameOldStyle P((FILE *));
193 int SaveGamePGN P((FILE *));
194 void GetTimeMark P((TimeMark *));
195 long SubtractTimeMarks P((TimeMark *, TimeMark *));
196 int CheckFlags P((void));
197 long NextTickLength P((long));
198 void CheckTimeControl P((void));
199 void show_bytes P((FILE *, char *, int));
200 int string_to_rating P((char *str));
201 void ParseFeatures P((char* args, ChessProgramState *cps));
202 void InitBackEnd3 P((void));
203 void FeatureDone P((ChessProgramState* cps, int val));
204 void InitChessProgram P((ChessProgramState *cps));
206 extern int tinyLayout, smallLayout;
207 static ChessProgramStats programStats;
209 /* States for ics_getting_history */
211 #define H_REQUESTED 1
212 #define H_GOT_REQ_HEADER 2
213 #define H_GOT_UNREQ_HEADER 3
214 #define H_GETTING_MOVES 4
215 #define H_GOT_UNWANTED_HEADER 5
217 /* whosays values for GameEnds */
224 /* Maximum number of games in a cmail message */
225 #define CMAIL_MAX_GAMES 20
227 /* Different types of move when calling RegisterMove */
229 #define CMAIL_RESIGN 1
231 #define CMAIL_ACCEPT 3
233 /* Different types of result to remember for each game */
234 #define CMAIL_NOT_RESULT 0
235 #define CMAIL_OLD_RESULT 1
236 #define CMAIL_NEW_RESULT 2
238 /* Telnet protocol constants */
248 /* Fake up flags for now, as we aren't keeping track of castling
253 int flags = F_ALL_CASTLE_OK;
254 if ((index % 2) == 0) flags |= F_WHITE_ON_MOVE;
255 switch (gameInfo.variant) {
257 case VariantGiveaway:
258 flags |= F_IGNORE_CHECK;
259 flags &= ~F_ALL_CASTLE_OK;
262 flags |= F_IGNORE_CHECK | F_ATOMIC_CAPTURE;
264 case VariantKriegspiel:
265 flags |= F_KRIEGSPIEL_CAPTURE;
267 case VariantNoCastle:
268 flags &= ~F_ALL_CASTLE_OK;
276 FILE *gameFileFP, *debugFP;
278 char cmailMove[CMAIL_MAX_GAMES][MOVE_LEN], cmailMsg[MSG_SIZ];
279 char bookOutput[MSG_SIZ*10], thinkOutput[MSG_SIZ*10], lastHint[MSG_SIZ];
280 char thinkOutput1[MSG_SIZ*10];
282 ChessProgramState first, second;
284 /* premove variables */
287 int premoveFromX = 0;
288 int premoveFromY = 0;
289 int premovePromoChar = 0;
291 Boolean alarmSounded;
292 /* end premove variables */
294 #define ICS_GENERIC 0
297 #define ICS_CHESSNET 3 /* not really supported */
298 int ics_type = ICS_GENERIC;
299 char *ics_prefix = "$";
301 int currentMove = 0, forwardMostMove = 0, backwardMostMove = 0;
302 int pauseExamForwardMostMove = 0;
303 int nCmailGames = 0, nCmailResults = 0, nCmailMovesRegistered = 0;
304 int cmailMoveRegistered[CMAIL_MAX_GAMES], cmailResult[CMAIL_MAX_GAMES];
305 int cmailMsgLoaded = FALSE, cmailMailedMove = FALSE;
306 int cmailOldMove = -1, firstMove = TRUE, flipView = FALSE;
307 int blackPlaysFirst = FALSE, startedFromSetupPosition = FALSE;
308 int searchTime = 0, pausing = FALSE, pauseExamInvalid = FALSE;
309 int whiteFlag = FALSE, blackFlag = FALSE;
310 int userOfferedDraw = FALSE;
311 int ics_user_moved = 0, ics_gamenum = -1, ics_getting_history = H_FALSE;
312 int matchMode = FALSE, hintRequested = FALSE, bookRequested = FALSE;
313 int cmailMoveType[CMAIL_MAX_GAMES];
314 long ics_clock_paused = 0;
315 ProcRef icsPR = NoProc, cmailPR = NoProc;
316 InputSourceRef telnetISR = NULL, fromUserISR = NULL, cmailISR = NULL;
317 GameMode gameMode = BeginningOfGame;
318 char moveList[MAX_MOVES][MOVE_LEN], parseList[MAX_MOVES][MOVE_LEN * 2];
319 char *commentList[MAX_MOVES], *cmailCommentList[CMAIL_MAX_GAMES];
320 char white_holding[64], black_holding[64];
321 TimeMark lastNodeCountTime;
322 long lastNodeCount=0;
323 int have_sent_ICS_logon = 0;
325 long whiteTimeRemaining, blackTimeRemaining, timeControl, timeIncrement;
326 long timeRemaining[2][MAX_MOVES];
328 TimeMark programStartTime;
329 char ics_handle[MSG_SIZ];
330 int have_set_title = 0;
332 /* animateTraining preserves the state of appData.animate
333 * when Training mode is activated. This allows the
334 * response to be animated when appData.animate == TRUE and
335 * appData.animateDragging == TRUE.
337 Boolean animateTraining;
343 Board boards[MAX_MOVES];
344 Board initialPosition = {
345 { WhiteRook, WhiteKnight, WhiteBishop, WhiteQueen,
346 WhiteKing, WhiteBishop, WhiteKnight, WhiteRook },
347 { WhitePawn, WhitePawn, WhitePawn, WhitePawn,
348 WhitePawn, WhitePawn, WhitePawn, WhitePawn },
349 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
350 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
351 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
352 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
353 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
354 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
355 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
356 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
357 { BlackPawn, BlackPawn, BlackPawn, BlackPawn,
358 BlackPawn, BlackPawn, BlackPawn, BlackPawn },
359 { BlackRook, BlackKnight, BlackBishop, BlackQueen,
360 BlackKing, BlackBishop, BlackKnight, BlackRook }
362 Board twoKingsPosition = {
363 { WhiteRook, WhiteKnight, WhiteBishop, WhiteQueen,
364 WhiteKing, WhiteKing, WhiteKnight, WhiteRook },
365 { WhitePawn, WhitePawn, WhitePawn, WhitePawn,
366 WhitePawn, WhitePawn, WhitePawn, WhitePawn },
367 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
368 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
369 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
370 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
371 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
372 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
373 { EmptySquare, EmptySquare, EmptySquare, EmptySquare,
374 EmptySquare, EmptySquare, EmptySquare, EmptySquare },
375 { BlackPawn, BlackPawn, BlackPawn, BlackPawn,
376 BlackPawn, BlackPawn, BlackPawn, BlackPawn },
377 { BlackRook, BlackKnight, BlackBishop, BlackQueen,
378 BlackKing, BlackKing, BlackKnight, BlackRook }
382 /* Convert str to a rating. Checks for special cases of "----",
383 "++++", etc. Also strips ()'s */
385 string_to_rating(str)
388 while(*str && !isdigit(*str)) ++str;
390 return 0; /* One of the special "no rating" cases */
398 /* Init programStats */
399 programStats.movelist[0] = 0;
400 programStats.depth = 0;
401 programStats.nr_moves = 0;
402 programStats.moves_left = 0;
403 programStats.nodes = 0;
404 programStats.time = 100;
405 programStats.score = 0;
406 programStats.got_only_move = 0;
407 programStats.got_fail = 0;
408 programStats.line_is_book = 0;
414 int matched, min, sec;
416 GetTimeMark(&programStartTime);
419 programStats.ok_to_send = 1;
420 programStats.seen_stat = 0;
423 * Initialize game list
429 * Internet chess server status
431 if (appData.icsActive) {
432 appData.matchMode = FALSE;
433 appData.matchGames = 0;
435 appData.noChessProgram = !appData.zippyPlay;
437 appData.zippyPlay = FALSE;
438 appData.zippyTalk = FALSE;
439 appData.noChessProgram = TRUE;
441 if (*appData.icsHelper != NULLCHAR) {
442 appData.useTelnet = TRUE;
443 appData.telnetProgram = appData.icsHelper;
446 appData.zippyTalk = appData.zippyPlay = FALSE;
450 * Parse timeControl resource
452 if (!ParseTimeControl(appData.timeControl, appData.timeIncrement,
453 appData.movesPerSession)) {
455 sprintf(buf, "bad timeControl option %s", appData.timeControl);
456 DisplayFatalError(buf, 0, 2);
460 * Parse searchTime resource
462 if (*appData.searchTime != NULLCHAR) {
463 matched = sscanf(appData.searchTime, "%d:%d", &min, &sec);
465 searchTime = min * 60;
466 } else if (matched == 2) {
467 searchTime = min * 60 + sec;
470 sprintf(buf, "bad searchTime option %s", appData.searchTime);
471 DisplayFatalError(buf, 0, 2);
475 first.which = "first";
476 second.which = "second";
477 first.maybeThinking = second.maybeThinking = FALSE;
478 first.pr = second.pr = NoProc;
479 first.isr = second.isr = NULL;
480 first.sendTime = second.sendTime = 2;
481 first.sendDrawOffers = 1;
482 if (appData.firstPlaysBlack) {
483 first.twoMachinesColor = "black\n";
484 second.twoMachinesColor = "white\n";
486 first.twoMachinesColor = "white\n";
487 second.twoMachinesColor = "black\n";
489 first.program = appData.firstChessProgram;
490 second.program = appData.secondChessProgram;
491 first.host = appData.firstHost;
492 second.host = appData.secondHost;
493 first.dir = appData.firstDirectory;
494 second.dir = appData.secondDirectory;
495 first.other = &second;
496 second.other = &first;
497 first.initString = appData.initString;
498 second.initString = appData.secondInitString;
499 first.computerString = appData.firstComputerString;
500 second.computerString = appData.secondComputerString;
501 first.useSigint = second.useSigint = TRUE;
502 first.useSigterm = second.useSigterm = TRUE;
503 first.reuse = appData.reuseFirst;
504 second.reuse = appData.reuseSecond;
505 first.useSetboard = second.useSetboard = FALSE;
506 first.useSAN = second.useSAN = FALSE;
507 first.usePing = second.usePing = FALSE;
508 first.lastPing = second.lastPing = 0;
509 first.lastPong = second.lastPong = 0;
510 first.usePlayother = second.usePlayother = FALSE;
511 first.useColors = second.useColors = TRUE;
512 first.useUsermove = second.useUsermove = FALSE;
513 first.sendICS = second.sendICS = FALSE;
514 first.sendName = second.sendName = appData.icsActive;
515 first.sdKludge = second.sdKludge = FALSE;
516 first.stKludge = second.stKludge = FALSE;
517 TidyProgramName(first.program, first.host, first.tidy);
518 TidyProgramName(second.program, second.host, second.tidy);
519 first.matchWins = second.matchWins = 0;
520 strcpy(first.variants, appData.variant);
521 strcpy(second.variants, appData.variant);
522 first.analysisSupport = second.analysisSupport = 2; /* detect */
523 first.analyzing = second.analyzing = FALSE;
524 first.initDone = second.initDone = FALSE;
526 if (appData.firstProtocolVersion > PROTOVER ||
527 appData.firstProtocolVersion < 1) {
529 sprintf(buf, "protocol version %d not supported",
530 appData.firstProtocolVersion);
531 DisplayFatalError(buf, 0, 2);
533 first.protocolVersion = appData.firstProtocolVersion;
536 if (appData.secondProtocolVersion > PROTOVER ||
537 appData.secondProtocolVersion < 1) {
539 sprintf(buf, "protocol version %d not supported",
540 appData.secondProtocolVersion);
541 DisplayFatalError(buf, 0, 2);
543 second.protocolVersion = appData.secondProtocolVersion;
546 if (appData.icsActive) {
547 appData.clockMode = TRUE; /* changes dynamically in ICS mode */
548 } else if (*appData.searchTime != NULLCHAR || appData.noChessProgram) {
549 appData.clockMode = FALSE;
550 first.sendTime = second.sendTime = 0;
554 /* Override some settings from environment variables, for backward
555 compatibility. Unfortunately it's not feasible to have the env
556 vars just set defaults, at least in xboard. Ugh.
558 if (appData.icsActive && (appData.zippyPlay || appData.zippyTalk)) {
563 if (appData.noChessProgram) {
564 programVersion = (char*) malloc(5 + strlen(PRODUCT) + strlen(VERSION)
565 + strlen(PATCHLEVEL));
566 sprintf(programVersion, "%s %s.%s", PRODUCT, VERSION, PATCHLEVEL);
570 while (*q != ' ' && *q != NULLCHAR) q++;
572 while (p > first.program && *(p-1) != '/') p--;
573 programVersion = (char*) malloc(8 + strlen(PRODUCT) + strlen(VERSION)
574 + strlen(PATCHLEVEL) + (q - p));
575 sprintf(programVersion, "%s %s.%s + ", PRODUCT, VERSION, PATCHLEVEL);
576 strncat(programVersion, p, q - p);
579 if (!appData.icsActive) {
581 /* Check for variants that are supported only in ICS mode,
582 or not at all. Some that are accepted here nevertheless
583 have bugs; see comments below.
585 VariantClass variant = StringToVariant(appData.variant);
587 case VariantBughouse: /* need four players and two boards */
588 case VariantKriegspiel: /* need to hide pieces and move details */
589 case VariantFischeRandom: /* castling doesn't work, shuffle not done */
590 sprintf(buf, "Variant %s supported only in ICS mode", appData.variant);
591 DisplayFatalError(buf, 0, 2);
595 case VariantLoadable:
605 sprintf(buf, "Unknown variant name %s", appData.variant);
606 DisplayFatalError(buf, 0, 2);
609 case VariantNormal: /* definitely works! */
610 case VariantWildCastle: /* pieces not automatically shuffled */
611 case VariantNoCastle: /* pieces not automatically shuffled */
612 case VariantCrazyhouse: /* holdings not shown,
613 offboard interposition not understood */
614 case VariantLosers: /* should work except for win condition,
615 and doesn't know captures are mandatory */
616 case VariantSuicide: /* should work except for win condition,
617 and doesn't know captures are mandatory */
618 case VariantGiveaway: /* should work except for win condition,
619 and doesn't know captures are mandatory */
620 case VariantTwoKings: /* should work */
621 case VariantAtomic: /* should work except for win condition */
622 case Variant3Check: /* should work except for win condition */
623 case VariantShatranj: /* might work if TestLegality is off */
630 ParseTimeControl(tc, ti, mps)
635 int matched, min, sec;
637 matched = sscanf(tc, "%d:%d", &min, &sec);
639 timeControl = min * 60 * 1000;
640 } else if (matched == 2) {
641 timeControl = (min * 60 + sec) * 1000;
647 timeIncrement = ti * 1000; /* convert to ms */
651 movesPerSession = mps;
659 if (appData.debugMode) {
660 fprintf(debugFP, "%s\n", programVersion);
663 if (appData.matchGames > 0) {
664 appData.matchMode = TRUE;
665 } else if (appData.matchMode) {
666 appData.matchGames = 1;
669 if (appData.noChessProgram || first.protocolVersion == 1) {
672 /* kludge: allow timeout for initial "feature" commands */
674 DisplayMessage("", "Starting chess program");
675 ScheduleDelayedEvent(InitBackEnd3, FEATURE_TIMEOUT);
680 InitBackEnd3 P((void))
682 GameMode initialMode;
686 InitChessProgram(&first);
688 if (appData.icsActive) {
691 if (*appData.icsCommPort != NULLCHAR) {
692 sprintf(buf, "Could not open comm port %s",
693 appData.icsCommPort);
695 sprintf(buf, "Could not connect to host %s, port %s",
696 appData.icsHost, appData.icsPort);
698 DisplayFatalError(buf, err, 1);
703 AddInputSource(icsPR, FALSE, read_from_ics, &telnetISR);
705 AddInputSource(NoProc, FALSE, read_from_player, &fromUserISR);
706 } else if (appData.noChessProgram) {
712 if (*appData.cmailGameName != NULLCHAR) {
714 OpenLoopback(&cmailPR);
716 AddInputSource(cmailPR, FALSE, CmailSigHandlerCallBack, &cmailISR);
720 DisplayMessage("", "");
721 if (StrCaseCmp(appData.initialMode, "") == 0) {
722 initialMode = BeginningOfGame;
723 } else if (StrCaseCmp(appData.initialMode, "TwoMachines") == 0) {
724 initialMode = TwoMachinesPlay;
725 } else if (StrCaseCmp(appData.initialMode, "AnalyzeFile") == 0) {
726 initialMode = AnalyzeFile;
727 } else if (StrCaseCmp(appData.initialMode, "Analysis") == 0) {
728 initialMode = AnalyzeMode;
729 } else if (StrCaseCmp(appData.initialMode, "MachineWhite") == 0) {
730 initialMode = MachinePlaysWhite;
731 } else if (StrCaseCmp(appData.initialMode, "MachineBlack") == 0) {
732 initialMode = MachinePlaysBlack;
733 } else if (StrCaseCmp(appData.initialMode, "EditGame") == 0) {
734 initialMode = EditGame;
735 } else if (StrCaseCmp(appData.initialMode, "EditPosition") == 0) {
736 initialMode = EditPosition;
737 } else if (StrCaseCmp(appData.initialMode, "Training") == 0) {
738 initialMode = Training;
740 sprintf(buf, "Unknown initialMode %s", appData.initialMode);
741 DisplayFatalError(buf, 0, 2);
745 if (appData.matchMode) {
746 /* Set up machine vs. machine match */
747 if (appData.noChessProgram) {
748 DisplayFatalError("Can't have a match with no chess programs",
754 if (*appData.loadGameFile != NULLCHAR) {
755 if (!LoadGameFromFile(appData.loadGameFile,
756 appData.loadGameIndex,
757 appData.loadGameFile, FALSE)) {
758 DisplayFatalError("Bad game file", 0, 1);
761 } else if (*appData.loadPositionFile != NULLCHAR) {
762 if (!LoadPositionFromFile(appData.loadPositionFile,
763 appData.loadPositionIndex,
764 appData.loadPositionFile)) {
765 DisplayFatalError("Bad position file", 0, 1);
770 } else if (*appData.cmailGameName != NULLCHAR) {
771 /* Set up cmail mode */
772 ReloadCmailMsgEvent(TRUE);
774 /* Set up other modes */
775 if (initialMode == AnalyzeFile) {
776 if (*appData.loadGameFile == NULLCHAR) {
777 DisplayFatalError("AnalyzeFile mode requires a game file", 0, 1);
781 if (*appData.loadGameFile != NULLCHAR) {
782 (void) LoadGameFromFile(appData.loadGameFile,
783 appData.loadGameIndex,
784 appData.loadGameFile, TRUE);
785 } else if (*appData.loadPositionFile != NULLCHAR) {
786 (void) LoadPositionFromFile(appData.loadPositionFile,
787 appData.loadPositionIndex,
788 appData.loadPositionFile);
790 if (initialMode == AnalyzeMode) {
791 if (appData.noChessProgram) {
792 DisplayFatalError("Analysis mode requires a chess engine", 0, 2);
795 if (appData.icsActive) {
796 DisplayFatalError("Analysis mode does not work with ICS mode",0,2);
800 } else if (initialMode == AnalyzeFile) {
801 ShowThinkingEvent(TRUE);
803 AnalysisPeriodicEvent(1);
804 } else if (initialMode == MachinePlaysWhite) {
805 if (appData.noChessProgram) {
806 DisplayFatalError("MachineWhite mode requires a chess engine",
810 if (appData.icsActive) {
811 DisplayFatalError("MachineWhite mode does not work with ICS mode",
816 } else if (initialMode == MachinePlaysBlack) {
817 if (appData.noChessProgram) {
818 DisplayFatalError("MachineBlack mode requires a chess engine",
822 if (appData.icsActive) {
823 DisplayFatalError("MachineBlack mode does not work with ICS mode",
828 } else if (initialMode == TwoMachinesPlay) {
829 if (appData.noChessProgram) {
830 DisplayFatalError("TwoMachines mode requires a chess engine",
834 if (appData.icsActive) {
835 DisplayFatalError("TwoMachines mode does not work with ICS mode",
840 } else if (initialMode == EditGame) {
842 } else if (initialMode == EditPosition) {
844 } else if (initialMode == Training) {
845 if (*appData.loadGameFile == NULLCHAR) {
846 DisplayFatalError("Training mode requires a game file", 0, 2);
855 * Establish will establish a contact to a remote host.port.
856 * Sets icsPR to a ProcRef for a process (or pseudo-process)
857 * used to talk to the host.
858 * Returns 0 if okay, error code if not.
865 if (*appData.icsCommPort != NULLCHAR) {
866 /* Talk to the host through a serial comm port */
867 return OpenCommPort(appData.icsCommPort, &icsPR);
869 } else if (*appData.gateway != NULLCHAR) {
870 if (*appData.remoteShell == NULLCHAR) {
871 /* Use the rcmd protocol to run telnet program on a gateway host */
872 sprintf(buf, "%s %s %s",
873 appData.telnetProgram, appData.icsHost, appData.icsPort);
874 return OpenRcmd(appData.gateway, appData.remoteUser, buf, &icsPR);
877 /* Use the rsh program to run telnet program on a gateway host */
878 if (*appData.remoteUser == NULLCHAR) {
879 sprintf(buf, "%s %s %s %s %s", appData.remoteShell,
880 appData.gateway, appData.telnetProgram,
881 appData.icsHost, appData.icsPort);
883 sprintf(buf, "%s %s -l %s %s %s %s",
884 appData.remoteShell, appData.gateway,
885 appData.remoteUser, appData.telnetProgram,
886 appData.icsHost, appData.icsPort);
888 return StartChildProcess(buf, "", &icsPR);
891 } else if (appData.useTelnet) {
892 return OpenTelnet(appData.icsHost, appData.icsPort, &icsPR);
895 /* TCP socket interface differs somewhat between
896 Unix and NT; handle details in the front end.
898 return OpenTCP(appData.icsHost, appData.icsPort, &icsPR);
903 show_bytes(fp, buf, count)
909 if (*buf < 040 || *(unsigned char *) buf > 0177) {
910 fprintf(fp, "\\%03o", *buf & 0xff);
919 /* Returns an errno value */
921 OutputMaybeTelnet(pr, message, count, outError)
927 char buf[8192], *p, *q, *buflim;
928 int left, newcount, outcount;
930 if (*appData.icsCommPort != NULLCHAR || appData.useTelnet ||
931 *appData.gateway != NULLCHAR) {
932 if (appData.debugMode) {
933 fprintf(debugFP, ">ICS: ");
934 show_bytes(debugFP, message, count);
935 fprintf(debugFP, "\n");
937 return OutputToProcess(pr, message, count, outError);
940 buflim = &buf[sizeof(buf)-1]; /* allow 1 byte for expanding last char */
947 if (appData.debugMode) {
948 fprintf(debugFP, ">ICS: ");
949 show_bytes(debugFP, buf, newcount);
950 fprintf(debugFP, "\n");
952 outcount = OutputToProcess(pr, buf, newcount, outError);
953 if (outcount < newcount) return -1; /* to be sure */
960 } else if (((unsigned char) *p) == TN_IAC) {
961 *q++ = (char) TN_IAC;
968 if (appData.debugMode) {
969 fprintf(debugFP, ">ICS: ");
970 show_bytes(debugFP, buf, newcount);
971 fprintf(debugFP, "\n");
973 outcount = OutputToProcess(pr, buf, newcount, outError);
974 if (outcount < newcount) return -1; /* to be sure */
979 read_from_player(isr, closure, message, count, error)
986 int outError, outCount;
987 static int gotEof = 0;
989 /* Pass data read from player on to ICS */
992 outCount = OutputMaybeTelnet(icsPR, message, count, &outError);
993 if (outCount < count) {
994 DisplayFatalError("Error writing to ICS", outError, 1);
996 } else if (count < 0) {
997 RemoveInputSource(isr);
998 DisplayFatalError("Error reading from keyboard", error, 1);
999 } else if (gotEof++ > 0) {
1000 RemoveInputSource(isr);
1001 DisplayFatalError("Got end of file from keyboard", 0, 0);
1009 int count, outCount, outError;
1011 if (icsPR == NULL) return;
1014 outCount = OutputMaybeTelnet(icsPR, s, count, &outError);
1015 if (outCount < count) {
1016 DisplayFatalError("Error writing to ICS", outError, 1);
1020 /* This is used for sending logon scripts to the ICS. Sending
1021 without a delay causes problems when using timestamp on ICC
1022 (at least on my machine). */
1024 SendToICSDelayed(s,msdelay)
1028 int count, outCount, outError;
1030 if (icsPR == NULL) return;
1033 if (appData.debugMode) {
1034 fprintf(debugFP, ">ICS: ");
1035 show_bytes(debugFP, s, count);
1036 fprintf(debugFP, "\n");
1038 outCount = OutputToProcessDelayed(icsPR, s, count, &outError,
1040 if (outCount < count) {
1041 DisplayFatalError("Error writing to ICS", outError, 1);
1046 /* Remove all highlighting escape sequences in s
1047 Also deletes any suffix starting with '('
1050 StripHighlightAndTitle(s)
1053 static char retbuf[MSG_SIZ];
1056 while (*s != NULLCHAR) {
1057 while (*s == '\033') {
1058 while (*s != NULLCHAR && !isalpha(*s)) s++;
1059 if (*s != NULLCHAR) s++;
1061 while (*s != NULLCHAR && *s != '\033') {
1062 if (*s == '(' || *s == '[') {
1073 /* Remove all highlighting escape sequences in s */
1078 static char retbuf[MSG_SIZ];
1081 while (*s != NULLCHAR) {
1082 while (*s == '\033') {
1083 while (*s != NULLCHAR && !isalpha(*s)) s++;
1084 if (*s != NULLCHAR) s++;
1086 while (*s != NULLCHAR && *s != '\033') {
1094 char *variantNames[] = VARIANT_NAMES;
1099 return variantNames[v];
1103 /* Identify a variant from the strings the chess servers use or the
1104 PGN Variant tag names we use. */
1111 VariantClass v = VariantNormal;
1112 int i, found = FALSE;
1117 for (i=0; i<sizeof(variantNames)/sizeof(char*); i++) {
1118 if (StrCaseStr(e, variantNames[i])) {
1119 v = (VariantClass) i;
1126 if ((StrCaseStr(e, "fischer") && StrCaseStr(e, "random"))
1127 || StrCaseStr(e, "wild/fr")) {
1128 v = VariantFischeRandom;
1129 } else if ((i = 4, p = StrCaseStr(e, "wild")) ||
1130 (i = 1, p = StrCaseStr(e, "w"))) {
1132 while (*p && (isspace(*p) || *p == '(' || *p == '/')) p++;
1139 case 0: /* FICS only, actually */
1141 /* Castling legal even if K starts on d-file */
1142 v = VariantWildCastle;
1147 /* Castling illegal even if K & R happen to start in
1148 normal positions. */
1149 v = VariantNoCastle;
1162 /* Castling legal iff K & R start in normal positions */
1168 /* Special wilds for position setup; unclear what to do here */
1169 v = VariantLoadable;
1172 /* Bizarre ICC game */
1173 v = VariantTwoKings;
1176 v = VariantKriegspiel;
1182 v = VariantFischeRandom;
1185 v = VariantCrazyhouse;
1188 v = VariantBughouse;
1194 /* Not quite the same as FICS suicide! */
1195 v = VariantGiveaway;
1201 v = VariantShatranj;
1204 /* Temporary names for future ICC types. The name *will* change in
1205 the next xboard/WinBoard release after ICC defines it. */
1232 /* Found "wild" or "w" in the string but no number;
1233 must assume it's normal chess. */
1237 sprintf(buf, "Unknown wild type %d", wnum);
1238 DisplayError(buf, 0);
1244 if (appData.debugMode) {
1245 fprintf(debugFP, "recognized '%s' (%d) as variant %s\n",
1246 e, wnum, VariantName(v));
1251 static int leftover_start = 0, leftover_len = 0;
1252 char star_match[STAR_MATCH_N][MSG_SIZ];
1254 /* Test whether pattern is present at &buf[*index]; if so, return TRUE,
1255 advance *index beyond it, and set leftover_start to the new value of
1256 *index; else return FALSE. If pattern contains the character '*', it
1257 matches any sequence of characters not containing '\r', '\n', or the
1258 character following the '*' (if any), and the matched sequence(s) are
1259 copied into star_match.
1262 looking_at(buf, index, pattern)
1267 char *bufp = &buf[*index], *patternp = pattern;
1269 char *matchp = star_match[0];
1272 if (*patternp == NULLCHAR) {
1273 *index = leftover_start = bufp - buf;
1277 if (*bufp == NULLCHAR) return FALSE;
1278 if (*patternp == '*') {
1279 if (*bufp == *(patternp + 1)) {
1281 matchp = star_match[++star_count];
1285 } else if (*bufp == '\n' || *bufp == '\r') {
1287 if (*patternp == NULLCHAR)
1292 *matchp++ = *bufp++;
1296 if (*patternp != *bufp) return FALSE;
1303 SendToPlayer(data, length)
1307 int error, outCount;
1308 outCount = OutputToProcess(NoProc, data, length, &error);
1309 if (outCount < length) {
1310 DisplayFatalError("Error writing to display", error, 1);
1315 PackHolding(packed, holding)
1327 switch (runlength) {
1338 sprintf(q, "%d", runlength);
1350 /* Telnet protocol requests from the front end */
1352 TelnetRequest(ddww, option)
1353 unsigned char ddww, option;
1355 unsigned char msg[3];
1356 int outCount, outError;
1358 if (*appData.icsCommPort != NULLCHAR || appData.useTelnet) return;
1360 if (appData.debugMode) {
1361 char buf1[8], buf2[8], *ddwwStr, *optionStr;
1377 sprintf(buf1, "%d", ddww);
1386 sprintf(buf2, "%d", option);
1389 fprintf(debugFP, ">%s %s ", ddwwStr, optionStr);
1394 outCount = OutputToProcess(icsPR, (char *)msg, 3, &outError);
1396 DisplayFatalError("Error writing to ICS", outError, 1);
1403 if (!appData.icsActive) return;
1404 TelnetRequest(TN_DO, TN_ECHO);
1410 if (!appData.icsActive) return;
1411 TelnetRequest(TN_DONT, TN_ECHO);
1414 static int loggedOn = FALSE;
1416 /*-- Game start info cache: --*/
1418 char gs_kind[MSG_SIZ];
1419 static char player1Name[128] = "";
1420 static char player2Name[128] = "";
1421 static int player1Rating = -1;
1422 static int player2Rating = -1;
1423 /*----------------------------*/
1426 read_from_ics(isr, closure, data, count, error)
1433 #define BUF_SIZE 8192
1434 #define STARTED_NONE 0
1435 #define STARTED_MOVES 1
1436 #define STARTED_BOARD 2
1437 #define STARTED_OBSERVE 3
1438 #define STARTED_HOLDINGS 4
1439 #define STARTED_CHATTER 5
1440 #define STARTED_COMMENT 6
1441 #define STARTED_MOVES_NOHIDE 7
1443 static int started = STARTED_NONE;
1444 static char parse[20000];
1445 static int parse_pos = 0;
1446 static char buf[BUF_SIZE + 1];
1447 static int firstTime = TRUE, intfSet = FALSE;
1448 static ColorClass curColor = ColorNormal;
1449 static ColorClass prevColor = ColorNormal;
1450 static int savingComment = FALSE;
1459 /* If last read ended with a partial line that we couldn't parse,
1460 prepend it to the new read and try again. */
1461 if (leftover_len > 0) {
1462 for (i=0; i<leftover_len; i++)
1463 buf[i] = buf[leftover_start + i];
1466 /* Copy in new characters, removing nulls and \r's */
1467 buf_len = leftover_len;
1468 for (i = 0; i < count; i++) {
1469 if (data[i] != NULLCHAR && data[i] != '\r')
1470 buf[buf_len++] = data[i];
1473 buf[buf_len] = NULLCHAR;
1474 next_out = leftover_len;
1478 while (i < buf_len) {
1479 /* Deal with part of the TELNET option negotiation
1480 protocol. We refuse to do anything beyond the
1481 defaults, except that we allow the WILL ECHO option,
1482 which ICS uses to turn off password echoing when we are
1483 directly connected to it. We reject this option
1484 if localLineEditing mode is on (always on in xboard)
1485 and we are talking to port 23, which might be a real
1486 telnet server that will try to keep WILL ECHO on permanently.
1488 if (buf_len - i >= 3 && (unsigned char) buf[i] == TN_IAC) {
1489 static int remoteEchoOption = FALSE; /* telnet ECHO option */
1490 unsigned char option;
1492 switch ((unsigned char) buf[++i]) {
1494 if (appData.debugMode)
1495 fprintf(debugFP, "\n<WILL ");
1496 switch (option = (unsigned char) buf[++i]) {
1498 if (appData.debugMode)
1499 fprintf(debugFP, "ECHO ");
1500 /* Reply only if this is a change, according
1501 to the protocol rules. */
1502 if (remoteEchoOption) break;
1503 if (appData.localLineEditing &&
1504 atoi(appData.icsPort) == TN_PORT) {
1505 TelnetRequest(TN_DONT, TN_ECHO);
1508 TelnetRequest(TN_DO, TN_ECHO);
1509 remoteEchoOption = TRUE;
1513 if (appData.debugMode)
1514 fprintf(debugFP, "%d ", option);
1515 /* Whatever this is, we don't want it. */
1516 TelnetRequest(TN_DONT, option);
1521 if (appData.debugMode)
1522 fprintf(debugFP, "\n<WONT ");
1523 switch (option = (unsigned char) buf[++i]) {
1525 if (appData.debugMode)
1526 fprintf(debugFP, "ECHO ");
1527 /* Reply only if this is a change, according
1528 to the protocol rules. */
1529 if (!remoteEchoOption) break;
1531 TelnetRequest(TN_DONT, TN_ECHO);
1532 remoteEchoOption = FALSE;
1535 if (appData.debugMode)
1536 fprintf(debugFP, "%d ", (unsigned char) option);
1537 /* Whatever this is, it must already be turned
1538 off, because we never agree to turn on
1539 anything non-default, so according to the
1540 protocol rules, we don't reply. */
1545 if (appData.debugMode)
1546 fprintf(debugFP, "\n<DO ");
1547 switch (option = (unsigned char) buf[++i]) {
1549 /* Whatever this is, we refuse to do it. */
1550 if (appData.debugMode)
1551 fprintf(debugFP, "%d ", option);
1552 TelnetRequest(TN_WONT, option);
1557 if (appData.debugMode)
1558 fprintf(debugFP, "\n<DONT ");
1559 switch (option = (unsigned char) buf[++i]) {
1561 if (appData.debugMode)
1562 fprintf(debugFP, "%d ", option);
1563 /* Whatever this is, we are already not doing
1564 it, because we never agree to do anything
1565 non-default, so according to the protocol
1566 rules, we don't reply. */
1571 if (appData.debugMode)
1572 fprintf(debugFP, "\n<IAC ");
1573 /* Doubled IAC; pass it through */
1577 if (appData.debugMode)
1578 fprintf(debugFP, "\n<%d ", (unsigned char) buf[i]);
1579 /* Drop all other telnet commands on the floor */
1582 if (oldi > next_out)
1583 SendToPlayer(&buf[next_out], oldi - next_out);
1589 /* OK, this at least will *usually* work */
1590 if (!loggedOn && looking_at(buf, &i, "ics%")) {
1594 if (loggedOn && !intfSet) {
1595 if (ics_type == ICS_ICC) {
1597 "/set-quietly interface %s\n/set-quietly style 12\n",
1600 } else if (ics_type == ICS_CHESSNET) {
1601 sprintf(str, "/style 12\n");
1603 strcpy(str, "alias $ @\n$set interface ");
1604 strcat(str, programVersion);
1605 strcat(str, "\n$iset startpos 1\n$iset ms 1\n");
1607 strcat(str, "$iset nohighlight 1\n");
1609 strcat(str, "$iset lock 1\n$style 12\n");
1615 if (started == STARTED_COMMENT) {
1616 /* Accumulate characters in comment */
1617 parse[parse_pos++] = buf[i];
1618 if (buf[i] == '\n') {
1619 parse[parse_pos] = NULLCHAR;
1620 AppendComment(forwardMostMove, StripHighlight(parse));
1621 started = STARTED_NONE;
1623 /* Don't match patterns against characters in chatter */
1628 if (started == STARTED_CHATTER) {
1629 if (buf[i] != '\n') {
1630 /* Don't match patterns against characters in chatter */
1634 started = STARTED_NONE;
1637 /* Kludge to deal with rcmd protocol */
1638 if (firstTime && looking_at(buf, &i, "\001*")) {
1639 DisplayFatalError(&buf[1], 0, 1);
1645 if (!loggedOn && looking_at(buf, &i, "chessclub.com")) {
1648 if (appData.debugMode)
1649 fprintf(debugFP, "ics_type %d\n", ics_type);
1652 if (!loggedOn && looking_at(buf, &i, "freechess.org")) {
1653 ics_type = ICS_FICS;
1655 if (appData.debugMode)
1656 fprintf(debugFP, "ics_type %d\n", ics_type);
1659 if (!loggedOn && looking_at(buf, &i, "chess.net")) {
1660 ics_type = ICS_CHESSNET;
1662 if (appData.debugMode)
1663 fprintf(debugFP, "ics_type %d\n", ics_type);
1668 (looking_at(buf, &i, "\"*\" is *a registered name") ||
1669 looking_at(buf, &i, "Logging you in as \"*\"") ||
1670 looking_at(buf, &i, "will be \"*\""))) {
1671 strcpy(ics_handle, star_match[0]);
1675 if (loggedOn && !have_set_title && ics_handle[0] != NULLCHAR) {
1677 sprintf(buf, "%s@%s", ics_handle, appData.icsHost);
1678 DisplayIcsInteractionTitle(buf);
1679 have_set_title = TRUE;
1682 /* skip finger notes */
1683 if (started == STARTED_NONE &&
1684 ((buf[i] == ' ' && isdigit(buf[i+1])) ||
1685 (buf[i] == '1' && buf[i+1] == '0')) &&
1686 buf[i+2] == ':' && buf[i+3] == ' ') {
1687 started = STARTED_CHATTER;
1692 /* skip formula vars */
1693 if (started == STARTED_NONE &&
1694 buf[i] == 'f' && isdigit(buf[i+1]) && buf[i+2] == ':') {
1695 started = STARTED_CHATTER;
1701 if (appData.zippyTalk || appData.zippyPlay) {
1703 if (ZippyControl(buf, &i) ||
1704 ZippyConverse(buf, &i) ||
1705 (appData.zippyPlay && ZippyMatch(buf, &i))) {
1711 if (/* Don't color "message" or "messages" output */
1712 (tkind = 5, looking_at(buf, &i, "*. * (*:*): ")) ||
1713 looking_at(buf, &i, "*. * at *:*: ") ||
1714 looking_at(buf, &i, "--* (*:*): ") ||
1715 /* Regular tells and says */
1716 (tkind = 1, looking_at(buf, &i, "* tells you: ")) ||
1717 looking_at(buf, &i, "* (your partner) tells you: ") ||
1718 looking_at(buf, &i, "* says: ") ||
1719 /* Message notifications (same color as tells) */
1720 looking_at(buf, &i, "* has left a message ") ||
1721 looking_at(buf, &i, "* just sent you a message:\n") ||
1722 /* Whispers and kibitzes */
1723 (tkind = 2, looking_at(buf, &i, "* whispers: ")) ||
1724 looking_at(buf, &i, "* kibitzes: ") ||
1726 (tkind = 3, looking_at(buf, &i, "*(*: "))) {
1728 if (tkind == 1 && strchr(star_match[0], ':')) {
1729 /* Avoid "tells you:" spoofs in channels */
1732 if (star_match[0][0] == NULLCHAR ||
1733 strchr(star_match[0], ' ') ||
1734 (tkind == 3 && strchr(star_match[1], ' '))) {
1735 /* Reject bogus matches */
1738 if (appData.colorize) {
1739 if (oldi > next_out) {
1740 SendToPlayer(&buf[next_out], oldi - next_out);
1745 Colorize(ColorTell, FALSE);
1746 curColor = ColorTell;
1749 Colorize(ColorKibitz, FALSE);
1750 curColor = ColorKibitz;
1753 p = strrchr(star_match[1], '(');
1760 Colorize(ColorChannel1, FALSE);
1761 curColor = ColorChannel1;
1763 Colorize(ColorChannel, FALSE);
1764 curColor = ColorChannel;
1768 curColor = ColorNormal;
1772 if (started == STARTED_NONE && appData.autoComment &&
1773 (gameMode == IcsObserving ||
1774 gameMode == IcsPlayingWhite ||
1775 gameMode == IcsPlayingBlack)) {
1776 parse_pos = i - oldi;
1777 memcpy(parse, &buf[oldi], parse_pos);
1778 parse[parse_pos] = NULLCHAR;
1779 started = STARTED_COMMENT;
1780 savingComment = TRUE;
1782 started = STARTED_CHATTER;
1783 savingComment = FALSE;
1790 if (looking_at(buf, &i, "* s-shouts: ") ||
1791 looking_at(buf, &i, "* c-shouts: ")) {
1792 if (appData.colorize) {
1793 if (oldi > next_out) {
1794 SendToPlayer(&buf[next_out], oldi - next_out);
1797 Colorize(ColorSShout, FALSE);
1798 curColor = ColorSShout;
1801 started = STARTED_CHATTER;
1805 if (looking_at(buf, &i, "--->")) {
1810 if (looking_at(buf, &i, "* shouts: ") ||
1811 looking_at(buf, &i, "--> ")) {
1812 if (appData.colorize) {
1813 if (oldi > next_out) {
1814 SendToPlayer(&buf[next_out], oldi - next_out);
1817 Colorize(ColorShout, FALSE);
1818 curColor = ColorShout;
1821 started = STARTED_CHATTER;
1825 if (looking_at( buf, &i, "Challenge:")) {
1826 if (appData.colorize) {
1827 if (oldi > next_out) {
1828 SendToPlayer(&buf[next_out], oldi - next_out);
1831 Colorize(ColorChallenge, FALSE);
1832 curColor = ColorChallenge;
1838 if (looking_at(buf, &i, "* offers you") ||
1839 looking_at(buf, &i, "* offers to be") ||
1840 looking_at(buf, &i, "* would like to") ||
1841 looking_at(buf, &i, "* requests to") ||
1842 looking_at(buf, &i, "Your opponent offers") ||
1843 looking_at(buf, &i, "Your opponent requests")) {
1845 if (appData.colorize) {
1846 if (oldi > next_out) {
1847 SendToPlayer(&buf[next_out], oldi - next_out);
1850 Colorize(ColorRequest, FALSE);
1851 curColor = ColorRequest;
1856 if (looking_at(buf, &i, "* (*) seeking")) {
1857 if (appData.colorize) {
1858 if (oldi > next_out) {
1859 SendToPlayer(&buf[next_out], oldi - next_out);
1862 Colorize(ColorSeek, FALSE);
1863 curColor = ColorSeek;
1869 if (looking_at(buf, &i, "\\ ")) {
1870 if (prevColor != ColorNormal) {
1871 if (oldi > next_out) {
1872 SendToPlayer(&buf[next_out], oldi - next_out);
1875 Colorize(prevColor, TRUE);
1876 curColor = prevColor;
1878 if (savingComment) {
1879 parse_pos = i - oldi;
1880 memcpy(parse, &buf[oldi], parse_pos);
1881 parse[parse_pos] = NULLCHAR;
1882 started = STARTED_COMMENT;
1884 started = STARTED_CHATTER;
1889 if (looking_at(buf, &i, "Black Strength :") ||
1890 looking_at(buf, &i, "<<< style 10 board >>>") ||
1891 looking_at(buf, &i, "<10>") ||
1892 looking_at(buf, &i, "#@#")) {
1893 /* Wrong board style */
1895 SendToICS(ics_prefix);
1896 SendToICS("set style 12\n");
1897 SendToICS(ics_prefix);
1898 SendToICS("refresh\n");
1902 if (!have_sent_ICS_logon && looking_at(buf, &i, "login:")) {
1904 have_sent_ICS_logon = 1;
1908 if (ics_getting_history != H_GETTING_MOVES /*smpos kludge*/ &&
1909 (looking_at(buf, &i, "\n<12> ") ||
1910 looking_at(buf, &i, "<12> "))) {
1912 if (oldi > next_out) {
1913 SendToPlayer(&buf[next_out], oldi - next_out);
1916 started = STARTED_BOARD;
1921 if ((started == STARTED_NONE && looking_at(buf, &i, "\n<b1> ")) ||
1922 looking_at(buf, &i, "<b1> ")) {
1923 if (oldi > next_out) {
1924 SendToPlayer(&buf[next_out], oldi - next_out);
1927 started = STARTED_HOLDINGS;
1932 if (looking_at(buf, &i, "* *vs. * *--- *")) {
1934 /* Header for a move list -- first line */
1936 switch (ics_getting_history) {
1940 case BeginningOfGame:
1941 /* User typed "moves" or "oldmoves" while we
1942 were idle. Pretend we asked for these
1943 moves and soak them up so user can step
1944 through them and/or save them.
1947 gameMode = IcsObserving;
1950 ics_getting_history = H_GOT_UNREQ_HEADER;
1952 case EditGame: /*?*/
1953 case EditPosition: /*?*/
1954 /* Should above feature work in these modes too? */
1955 /* For now it doesn't */
1956 ics_getting_history = H_GOT_UNWANTED_HEADER;
1959 ics_getting_history = H_GOT_UNWANTED_HEADER;
1964 /* Is this the right one? */
1965 if (gameInfo.white && gameInfo.black &&
1966 strcmp(gameInfo.white, star_match[0]) == 0 &&
1967 strcmp(gameInfo.black, star_match[2]) == 0) {
1969 ics_getting_history = H_GOT_REQ_HEADER;
1972 case H_GOT_REQ_HEADER:
1973 case H_GOT_UNREQ_HEADER:
1974 case H_GOT_UNWANTED_HEADER:
1975 case H_GETTING_MOVES:
1976 /* Should not happen */
1977 DisplayError("Error gathering move list: two headers", 0);
1978 ics_getting_history = H_FALSE;
1982 /* Save player ratings into gameInfo if needed */
1983 if ((ics_getting_history == H_GOT_REQ_HEADER ||
1984 ics_getting_history == H_GOT_UNREQ_HEADER) &&
1985 (gameInfo.whiteRating == -1 ||
1986 gameInfo.blackRating == -1)) {
1988 gameInfo.whiteRating = string_to_rating(star_match[1]);
1989 gameInfo.blackRating = string_to_rating(star_match[3]);
1990 if (appData.debugMode)
1991 fprintf(debugFP, "Ratings from header: W %d, B %d\n",
1992 gameInfo.whiteRating, gameInfo.blackRating);
1997 if (looking_at(buf, &i,
1998 "* * match, initial time: * minute*, increment: * second")) {
1999 /* Header for a move list -- second line */
2000 /* Initial board will follow if this is a wild game */
2002 if (gameInfo.event != NULL) free(gameInfo.event);
2003 sprintf(str, "ICS %s %s match", star_match[0], star_match[1]);
2004 gameInfo.event = StrSave(str);
2005 gameInfo.variant = StringToVariant(gameInfo.event);
2009 if (looking_at(buf, &i, "Move ")) {
2010 /* Beginning of a move list */
2011 switch (ics_getting_history) {
2013 /* Normally should not happen */
2014 /* Maybe user hit reset while we were parsing */
2017 /* Happens if we are ignoring a move list that is not
2018 * the one we just requested. Common if the user
2019 * tries to observe two games without turning off
2022 case H_GETTING_MOVES:
2023 /* Should not happen */
2024 DisplayError("Error gathering move list: nested", 0);
2025 ics_getting_history = H_FALSE;
2027 case H_GOT_REQ_HEADER:
2028 ics_getting_history = H_GETTING_MOVES;
2029 started = STARTED_MOVES;
2031 if (oldi > next_out) {
2032 SendToPlayer(&buf[next_out], oldi - next_out);
2035 case H_GOT_UNREQ_HEADER:
2036 ics_getting_history = H_GETTING_MOVES;
2037 started = STARTED_MOVES_NOHIDE;
2040 case H_GOT_UNWANTED_HEADER:
2041 ics_getting_history = H_FALSE;
2047 if (looking_at(buf, &i, "% ") ||
2048 ((started == STARTED_MOVES || started == STARTED_MOVES_NOHIDE)
2049 && looking_at(buf, &i, "}*"))) {
2050 savingComment = FALSE;
2053 case STARTED_MOVES_NOHIDE:
2054 memcpy(&parse[parse_pos], &buf[oldi], i - oldi);
2055 parse[parse_pos + i - oldi] = NULLCHAR;
2056 ParseGameHistory(parse);
2058 if (appData.zippyPlay && first.initDone) {
2059 FeedMovesToProgram(&first, forwardMostMove);
2060 if (gameMode == IcsPlayingWhite) {
2061 if (WhiteOnMove(forwardMostMove)) {
2062 if (first.sendTime) {
2063 if (first.useColors) {
2064 SendToProgram("black\n", &first);
2066 SendTimeRemaining(&first, TRUE);
2068 if (first.useColors) {
2069 SendToProgram("white\ngo\n", &first);
2071 SendToProgram("go\n", &first);
2073 first.maybeThinking = TRUE;
2075 if (first.usePlayother) {
2076 if (first.sendTime) {
2077 SendTimeRemaining(&first, TRUE);
2079 SendToProgram("playother\n", &first);
2085 } else if (gameMode == IcsPlayingBlack) {
2086 if (!WhiteOnMove(forwardMostMove)) {
2087 if (first.sendTime) {
2088 if (first.useColors) {
2089 SendToProgram("white\n", &first);
2091 SendTimeRemaining(&first, FALSE);
2093 if (first.useColors) {
2094 SendToProgram("black\ngo\n", &first);
2096 SendToProgram("go\n", &first);
2098 first.maybeThinking = TRUE;
2100 if (first.usePlayother) {
2101 if (first.sendTime) {
2102 SendTimeRemaining(&first, FALSE);
2104 SendToProgram("playother\n", &first);
2113 if (gameMode == IcsObserving && ics_gamenum == -1) {
2114 /* Moves came from oldmoves or moves command
2115 while we weren't doing anything else.
2117 currentMove = forwardMostMove;
2118 ClearHighlights();/*!!could figure this out*/
2119 flipView = appData.flipView;
2120 DrawPosition(FALSE, boards[currentMove]);
2121 DisplayBothClocks();
2122 sprintf(str, "%s vs. %s",
2123 gameInfo.white, gameInfo.black);
2127 /* Moves were history of an active game */
2128 if (gameInfo.resultDetails != NULL) {
2129 free(gameInfo.resultDetails);
2130 gameInfo.resultDetails = NULL;
2133 HistorySet(parseList, backwardMostMove,
2134 forwardMostMove, currentMove-1);
2135 DisplayMove(currentMove - 1);
2136 if (started == STARTED_MOVES) next_out = i;
2137 started = STARTED_NONE;
2138 ics_getting_history = H_FALSE;
2141 case STARTED_OBSERVE:
2142 started = STARTED_NONE;
2143 SendToICS(ics_prefix);
2144 SendToICS("refresh\n");
2153 if ((started == STARTED_MOVES || started == STARTED_BOARD ||
2154 started == STARTED_HOLDINGS ||
2155 started == STARTED_MOVES_NOHIDE) && i >= leftover_len) {
2156 /* Accumulate characters in move list or board */
2157 parse[parse_pos++] = buf[i];
2160 /* Start of game messages. Mostly we detect start of game
2161 when the first board image arrives. On some versions
2162 of the ICS, though, we need to do a "refresh" after starting
2163 to observe in order to get the current board right away. */
2164 if (looking_at(buf, &i, "Adding game * to observation list")) {
2165 started = STARTED_OBSERVE;
2169 /* Handle auto-observe */
2170 if (appData.autoObserve &&
2171 (gameMode == IcsIdle || gameMode == BeginningOfGame) &&
2172 looking_at(buf, &i, "Game notification: * (*) vs. * (*)")) {
2174 /* Choose the player that was highlighted, if any. */
2175 if (star_match[0][0] == '\033' ||
2176 star_match[1][0] != '\033') {
2177 player = star_match[0];
2179 player = star_match[2];
2181 sprintf(str, "%sobserve %s\n",
2182 ics_prefix, StripHighlightAndTitle(player));
2185 /* Save ratings from notify string */
2186 strcpy(player1Name, star_match[0]);
2187 player1Rating = string_to_rating(star_match[1]);
2188 strcpy(player2Name, star_match[2]);
2189 player2Rating = string_to_rating(star_match[3]);
2191 if (appData.debugMode)
2193 "Ratings from 'Game notification:' %s %d, %s %d\n",
2194 player1Name, player1Rating,
2195 player2Name, player2Rating);
2200 /* Deal with automatic examine mode after a game,
2201 and with IcsObserving -> IcsExamining transition */
2202 if (looking_at(buf, &i, "Entering examine mode for game *") ||
2203 looking_at(buf, &i, "has made you an examiner of game *")) {
2205 int gamenum = atoi(star_match[0]);
2206 if ((gameMode == IcsIdle || gameMode == IcsObserving) &&
2207 gamenum == ics_gamenum) {
2208 /* We were already playing or observing this game;
2209 no need to refetch history */
2210 gameMode = IcsExamining;
2212 pauseExamForwardMostMove = forwardMostMove;
2213 } else if (currentMove < forwardMostMove) {
2214 ForwardInner(forwardMostMove);
2217 /* I don't think this case really can happen */
2218 SendToICS(ics_prefix);
2219 SendToICS("refresh\n");
2224 /* Error messages */
2225 if (ics_user_moved) {
2226 if (looking_at(buf, &i, "Illegal move") ||
2227 looking_at(buf, &i, "Not a legal move") ||
2228 looking_at(buf, &i, "Your king is in check") ||
2229 looking_at(buf, &i, "It isn't your turn") ||
2230 looking_at(buf, &i, "It is not your move")) {
2233 if (forwardMostMove > backwardMostMove) {
2234 currentMove = --forwardMostMove;
2235 DisplayMove(currentMove - 1); /* before DMError */
2236 DisplayMoveError("Illegal move (rejected by ICS)");
2237 DrawPosition(FALSE, boards[currentMove]);
2239 DisplayBothClocks();
2245 if (looking_at(buf, &i, "still have time") ||
2246 looking_at(buf, &i, "not out of time") ||
2247 looking_at(buf, &i, "either player is out of time") ||
2248 looking_at(buf, &i, "has timeseal; checking")) {
2249 /* We must have called his flag a little too soon */
2250 whiteFlag = blackFlag = FALSE;
2254 if (looking_at(buf, &i, "added * seconds to") ||
2255 looking_at(buf, &i, "seconds were added to")) {
2256 /* Update the clocks */
2257 SendToICS(ics_prefix);
2258 SendToICS("refresh\n");
2262 if (!ics_clock_paused && looking_at(buf, &i, "clock paused")) {
2263 ics_clock_paused = TRUE;
2268 if (ics_clock_paused && looking_at(buf, &i, "clock resumed")) {
2269 ics_clock_paused = FALSE;
2274 /* Grab player ratings from the Creating: message.
2275 Note we have to check for the special case when
2276 the ICS inserts things like [white] or [black]. */
2277 if (looking_at(buf, &i, "Creating: * (*)* * (*)") ||
2278 looking_at(buf, &i, "Creating: * (*) [*] * (*)")) {
2280 0 player 1 name (not necessarily white)
2282 2 empty, white, or black (IGNORED)
2283 3 player 2 name (not necessarily black)
2286 The names/ratings are sorted out when the game
2287 actually starts (below).
2289 strcpy(player1Name, StripHighlightAndTitle(star_match[0]));
2290 player1Rating = string_to_rating(star_match[1]);
2291 strcpy(player2Name, StripHighlightAndTitle(star_match[3]));
2292 player2Rating = string_to_rating(star_match[4]);
2294 if (appData.debugMode)
2296 "Ratings from 'Creating:' %s %d, %s %d\n",
2297 player1Name, player1Rating,
2298 player2Name, player2Rating);
2303 /* Improved generic start/end-of-game messages */
2304 if ((tkind=0, looking_at(buf, &i, "{Game * (* vs. *) *}*")) ||
2305 (tkind=1, looking_at(buf, &i, "{Game * (*(*) vs. *(*)) *}*"))){
2306 /* If tkind == 0: */
2307 /* star_match[0] is the game number */
2308 /* [1] is the white player's name */
2309 /* [2] is the black player's name */
2310 /* For end-of-game: */
2311 /* [3] is the reason for the game end */
2312 /* [4] is a PGN end game-token, preceded by " " */
2313 /* For start-of-game: */
2314 /* [3] begins with "Creating" or "Continuing" */
2315 /* [4] is " *" or empty (don't care). */
2316 int gamenum = atoi(star_match[0]);
2317 char *whitename, *blackname, *why, *endtoken;
2318 ChessMove endtype = (ChessMove) 0;
2321 whitename = star_match[1];
2322 blackname = star_match[2];
2323 why = star_match[3];
2324 endtoken = star_match[4];
2326 whitename = star_match[1];
2327 blackname = star_match[3];
2328 why = star_match[5];
2329 endtoken = star_match[6];
2332 /* Game start messages */
2333 if (strncmp(why, "Creating ", 9) == 0 ||
2334 strncmp(why, "Continuing ", 11) == 0) {
2335 gs_gamenum = gamenum;
2336 strcpy(gs_kind, strchr(why, ' ') + 1);
2338 if (appData.zippyPlay) {
2339 ZippyGameStart(whitename, blackname);
2345 /* Game end messages */
2346 if (gameMode == IcsIdle || gameMode == BeginningOfGame ||
2347 ics_gamenum != gamenum) {
2350 while (endtoken[0] == ' ') endtoken++;
2351 switch (endtoken[0]) {
2354 endtype = GameUnfinished;
2357 endtype = BlackWins;
2360 if (endtoken[1] == '/')
2361 endtype = GameIsDrawn;
2363 endtype = WhiteWins;
2366 GameEnds(endtype, why, GE_ICS);
2368 if (appData.zippyPlay && first.initDone) {
2369 ZippyGameEnd(endtype, why);
2370 if (first.pr == NULL) {
2371 /* Start the next process early so that we'll
2372 be ready for the next challenge */
2373 StartChessProgram(&first);
2375 /* Send "new" early, in case this command takes
2376 a long time to finish, so that we'll be ready
2377 for the next challenge. */
2384 if (looking_at(buf, &i, "Removing game * from observation") ||
2385 looking_at(buf, &i, "no longer observing game *") ||
2386 looking_at(buf, &i, "Game * (*) has no examiners")) {
2387 if (gameMode == IcsObserving &&
2388 atoi(star_match[0]) == ics_gamenum)
2393 ics_user_moved = FALSE;
2398 if (looking_at(buf, &i, "no longer examining game *")) {
2399 if (gameMode == IcsExamining &&
2400 atoi(star_match[0]) == ics_gamenum)
2404 ics_user_moved = FALSE;
2409 /* Advance leftover_start past any newlines we find,
2410 so only partial lines can get reparsed */
2411 if (looking_at(buf, &i, "\n")) {
2412 prevColor = curColor;
2413 if (curColor != ColorNormal) {
2414 if (oldi > next_out) {
2415 SendToPlayer(&buf[next_out], oldi - next_out);
2418 Colorize(ColorNormal, FALSE);
2419 curColor = ColorNormal;
2421 if (started == STARTED_BOARD) {
2422 started = STARTED_NONE;
2423 parse[parse_pos] = NULLCHAR;
2424 ParseBoard12(parse);
2427 /* Send premove here */
2428 if (appData.premove) {
2430 if (currentMove == 0 &&
2431 gameMode == IcsPlayingWhite &&
2432 appData.premoveWhite) {
2433 sprintf(str, "%s%s\n", ics_prefix,
2434 appData.premoveWhiteText);
2435 if (appData.debugMode)
2436 fprintf(debugFP, "Sending premove:\n");
2438 } else if (currentMove == 1 &&
2439 gameMode == IcsPlayingBlack &&
2440 appData.premoveBlack) {
2441 sprintf(str, "%s%s\n", ics_prefix,
2442 appData.premoveBlackText);
2443 if (appData.debugMode)
2444 fprintf(debugFP, "Sending premove:\n");
2446 } else if (gotPremove) {
2448 ClearPremoveHighlights();
2449 if (appData.debugMode)
2450 fprintf(debugFP, "Sending premove:\n");
2451 UserMoveEvent(premoveFromX, premoveFromY,
2452 premoveToX, premoveToY,
2457 /* Usually suppress following prompt */
2458 if (!(forwardMostMove == 0 && gameMode == IcsExamining)) {
2459 if (looking_at(buf, &i, "*% ")) {
2460 savingComment = FALSE;
2464 } else if (started == STARTED_HOLDINGS) {
2466 char new_piece[MSG_SIZ];
2467 started = STARTED_NONE;
2468 parse[parse_pos] = NULLCHAR;
2469 if (appData.debugMode)
2470 fprintf(debugFP, "Parsing holdings: %s\n", parse);
2471 if (sscanf(parse, " game %d", &gamenum) == 1 &&
2472 gamenum == ics_gamenum) {
2473 if (gameInfo.variant == VariantNormal) {
2474 gameInfo.variant = VariantCrazyhouse; /*temp guess*/
2475 /* Get a move list just to see the header, which
2476 will tell us whether this is really bug or zh */
2477 if (ics_getting_history == H_FALSE) {
2478 ics_getting_history = H_REQUESTED;
2479 sprintf(str, "%smoves %d\n", ics_prefix, gamenum);
2483 new_piece[0] = NULLCHAR;
2484 sscanf(parse, "game %d white [%s black [%s <- %s",
2485 &gamenum, white_holding, black_holding,
2487 white_holding[strlen(white_holding)-1] = NULLCHAR;
2488 black_holding[strlen(black_holding)-1] = NULLCHAR;
2490 if (appData.zippyPlay && first.initDone) {
2491 ZippyHoldings(white_holding, black_holding,
2495 if (tinyLayout || smallLayout) {
2496 char wh[16], bh[16];
2497 PackHolding(wh, white_holding);
2498 PackHolding(bh, black_holding);
2499 sprintf(str, "[%s-%s] %s-%s", wh, bh,
2500 gameInfo.white, gameInfo.black);
2502 sprintf(str, "%s [%s] vs. %s [%s]",
2503 gameInfo.white, white_holding,
2504 gameInfo.black, black_holding);
2506 DrawPosition(FALSE, NULL);
2509 /* Suppress following prompt */
2510 if (looking_at(buf, &i, "*% ")) {
2511 savingComment = FALSE;
2518 i++; /* skip unparsed character and loop back */
2521 if (started != STARTED_MOVES && started != STARTED_BOARD &&
2522 started != STARTED_HOLDINGS && i > next_out) {
2523 SendToPlayer(&buf[next_out], i - next_out);
2527 leftover_len = buf_len - leftover_start;
2528 /* if buffer ends with something we couldn't parse,
2529 reparse it after appending the next read */
2531 } else if (count == 0) {
2532 RemoveInputSource(isr);
2533 DisplayFatalError("Connection closed by ICS", 0, 0);
2535 DisplayFatalError("Error reading from ICS", error, 1);
2540 /* Board style 12 looks like this:
2542 <12> r-b---k- pp----pp ---bP--- ---p---- q------- ------P- P--Q--BP -----R-K W -1 0 0 0 0 0 0 paf MaxII 0 2 12 21 25 234 174 24 Q/d7-a4 (0:06) Qxa4 0 0
2544 * The "<12> " is stripped before it gets to this routine. The two
2545 * trailing 0's (flip state and clock ticking) are later addition, and
2546 * some chess servers may not have them, or may have only the first.
2547 * Additional trailing fields may be added in the future.
2550 #define PATTERN "%72c%c%d%d%d%d%d%d%d%s%s%d%d%d%d%d%d%d%d%s%s%s%d%d"
2552 #define RELATION_OBSERVING_PLAYED 0
2553 #define RELATION_OBSERVING_STATIC -2 /* examined, oldmoves, or smoves */
2554 #define RELATION_PLAYING_MYMOVE 1
2555 #define RELATION_PLAYING_NOTMYMOVE -1
2556 #define RELATION_EXAMINING 2
2557 #define RELATION_ISOLATED_BOARD -3
2558 #define RELATION_STARTING_POSITION -4 /* FICS only */
2561 ParseBoard12(string)
2564 GameMode newGameMode;
2565 int gamenum, newGame, newMove, relation, basetime, increment, ics_flip = 0;
2566 int j, k, n, moveNum, white_stren, black_stren, white_time, black_time;
2567 int double_push, castle_ws, castle_wl, castle_bs, castle_bl, irrev_count;
2568 char to_play, board_chars[72];
2569 char move_str[500], str[500], elapsed_time[500];
2570 char black[32], white[32];
2572 int prevMove = currentMove;
2575 int fromX, fromY, toX, toY;
2578 fromX = fromY = toX = toY = -1;
2582 if (appData.debugMode)
2583 fprintf(debugFP, "Parsing board: %s\n", string);
2585 move_str[0] = NULLCHAR;
2586 elapsed_time[0] = NULLCHAR;
2587 n = sscanf(string, PATTERN, board_chars, &to_play, &double_push,
2588 &castle_ws, &castle_wl, &castle_bs, &castle_bl, &irrev_count,
2589 &gamenum, white, black, &relation, &basetime, &increment,
2590 &white_stren, &black_stren, &white_time, &black_time,
2591 &moveNum, str, elapsed_time, move_str, &ics_flip,
2595 sprintf(str, "Failed to parse board string:\n\"%s\"", string);
2596 DisplayError(str, 0);
2600 /* Convert the move number to internal form */
2601 moveNum = (moveNum - 1) * 2;
2602 if (to_play == 'B') moveNum++;
2603 if (moveNum >= MAX_MOVES) {
2604 DisplayFatalError("Game too long; increase MAX_MOVES and recompile",
2610 case RELATION_OBSERVING_PLAYED:
2611 case RELATION_OBSERVING_STATIC:
2612 if (gamenum == -1) {
2613 /* Old ICC buglet */
2614 relation = RELATION_OBSERVING_STATIC;
2616 newGameMode = IcsObserving;
2618 case RELATION_PLAYING_MYMOVE:
2619 case RELATION_PLAYING_NOTMYMOVE:
2621 ((relation == RELATION_PLAYING_MYMOVE) == (to_play == 'W')) ?
2622 IcsPlayingWhite : IcsPlayingBlack;
2624 case RELATION_EXAMINING:
2625 newGameMode = IcsExamining;
2627 case RELATION_ISOLATED_BOARD:
2629 /* Just display this board. If user was doing something else,
2630 we will forget about it until the next board comes. */
2631 newGameMode = IcsIdle;
2633 case RELATION_STARTING_POSITION:
2634 newGameMode = gameMode;
2638 /* Modify behavior for initial board display on move listing
2641 switch (ics_getting_history) {
2645 case H_GOT_REQ_HEADER:
2646 case H_GOT_UNREQ_HEADER:
2647 /* This is the initial position of the current game */
2648 gamenum = ics_gamenum;
2649 moveNum = 0; /* old ICS bug workaround */
2650 if (to_play == 'B') {
2651 startedFromSetupPosition = TRUE;
2652 blackPlaysFirst = TRUE;
2654 if (forwardMostMove == 0) forwardMostMove = 1;
2655 if (backwardMostMove == 0) backwardMostMove = 1;
2656 if (currentMove == 0) currentMove = 1;
2658 newGameMode = gameMode;
2659 relation = RELATION_STARTING_POSITION; /* ICC needs this */
2661 case H_GOT_UNWANTED_HEADER:
2662 /* This is an initial board that we don't want */
2664 case H_GETTING_MOVES:
2665 /* Should not happen */
2666 DisplayError("Error gathering move list: extra board", 0);
2667 ics_getting_history = H_FALSE;
2671 /* Take action if this is the first board of a new game, or of a
2672 different game than is currently being displayed. */
2673 if (gamenum != ics_gamenum || newGameMode != gameMode ||
2674 relation == RELATION_ISOLATED_BOARD) {
2676 /* Forget the old game and get the history (if any) of the new one */
2677 if (gameMode != BeginningOfGame) {
2681 if (appData.autoRaiseBoard) BoardToTop();
2683 if (gamenum == -1) {
2684 newGameMode = IcsIdle;
2685 } else if (moveNum > 0 && newGameMode != IcsIdle &&
2686 appData.getMoveList) {
2687 /* Need to get game history */
2688 ics_getting_history = H_REQUESTED;
2689 sprintf(str, "%smoves %d\n", ics_prefix, gamenum);
2693 /* Initially flip the board to have black on the bottom if playing
2694 black or if the ICS flip flag is set, but let the user change
2695 it with the Flip View button. */
2696 flipView = appData.autoFlipView ?
2697 (newGameMode == IcsPlayingBlack) || ics_flip :
2700 /* Done with values from previous mode; copy in new ones */
2701 gameMode = newGameMode;
2703 ics_gamenum = gamenum;
2704 if (gamenum == gs_gamenum) {
2705 int klen = strlen(gs_kind);
2706 if (gs_kind[klen - 1] == '.') gs_kind[klen - 1] = NULLCHAR;
2707 sprintf(str, "ICS %s", gs_kind);
2708 gameInfo.event = StrSave(str);
2710 gameInfo.event = StrSave("ICS game");
2712 gameInfo.site = StrSave(appData.icsHost);
2713 gameInfo.date = PGNDate();
2714 gameInfo.round = StrSave("-");
2715 gameInfo.white = StrSave(white);
2716 gameInfo.black = StrSave(black);
2717 timeControl = basetime * 60 * 1000;
2718 timeIncrement = increment * 1000;
2719 movesPerSession = 0;
2720 gameInfo.timeControl = TimeControlTagValue();
2721 gameInfo.variant = StringToVariant(gameInfo.event);
2723 /* Do we have the ratings? */
2724 if (strcmp(player1Name, white) == 0 &&
2725 strcmp(player2Name, black) == 0) {
2726 if (appData.debugMode)
2727 fprintf(debugFP, "Remembered ratings: W %d, B %d\n",
2728 player1Rating, player2Rating);
2729 gameInfo.whiteRating = player1Rating;
2730 gameInfo.blackRating = player2Rating;
2731 } else if (strcmp(player2Name, white) == 0 &&
2732 strcmp(player1Name, black) == 0) {
2733 if (appData.debugMode)
2734 fprintf(debugFP, "Remembered ratings: W %d, B %d\n",
2735 player2Rating, player1Rating);
2736 gameInfo.whiteRating = player2Rating;
2737 gameInfo.blackRating = player1Rating;
2739 player1Name[0] = player2Name[0] = NULLCHAR;
2741 /* Silence shouts if requested */
2742 if (appData.quietPlay &&
2743 (gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack)) {
2744 SendToICS(ics_prefix);
2745 SendToICS("set shout 0\n");
2749 /* Deal with midgame name changes */
2751 if (!gameInfo.white || strcmp(gameInfo.white, white) != 0) {
2752 if (gameInfo.white) free(gameInfo.white);
2753 gameInfo.white = StrSave(white);
2755 if (!gameInfo.black || strcmp(gameInfo.black, black) != 0) {
2756 if (gameInfo.black) free(gameInfo.black);
2757 gameInfo.black = StrSave(black);
2761 /* Throw away game result if anything actually changes in examine mode */
2762 if (gameMode == IcsExamining && !newGame) {
2763 gameInfo.result = GameUnfinished;
2764 if (gameInfo.resultDetails != NULL) {
2765 free(gameInfo.resultDetails);
2766 gameInfo.resultDetails = NULL;
2770 /* In pausing && IcsExamining mode, we ignore boards coming
2771 in if they are in a different variation than we are. */
2772 if (pauseExamInvalid) return;
2773 if (pausing && gameMode == IcsExamining) {
2774 if (moveNum <= pauseExamForwardMostMove) {
2775 pauseExamInvalid = TRUE;
2776 forwardMostMove = pauseExamForwardMostMove;
2781 /* Parse the board */
2782 for (k = 0; k < 8; k++)
2783 for (j = 0; j < 8; j++)
2784 board[k][j] = CharToPiece(board_chars[(7-k)*9 + j]);
2785 CopyBoard(boards[moveNum], board);
2787 startedFromSetupPosition =
2788 !CompareBoards(board, initialPosition);
2791 if (ics_getting_history == H_GOT_REQ_HEADER ||
2792 ics_getting_history == H_GOT_UNREQ_HEADER) {
2793 /* This was an initial position from a move list, not
2794 the current position */
2798 /* Update currentMove and known move number limits */
2799 newMove = newGame || moveNum > forwardMostMove;
2801 forwardMostMove = backwardMostMove = currentMove = moveNum;
2802 if (gameMode == IcsExamining && moveNum == 0) {
2803 /* Workaround for ICS limitation: we are not told the wild
2804 type when starting to examine a game. But if we ask for
2805 the move list, the move list header will tell us */
2806 ics_getting_history = H_REQUESTED;
2807 sprintf(str, "%smoves %d\n", ics_prefix, gamenum);
2810 } else if (moveNum == forwardMostMove + 1 || moveNum == forwardMostMove
2811 || (moveNum < forwardMostMove && moveNum >= backwardMostMove)) {
2812 forwardMostMove = moveNum;
2813 if (!pausing || currentMove > forwardMostMove)
2814 currentMove = forwardMostMove;
2816 /* New part of history that is not contiguous with old part */
2817 if (pausing && gameMode == IcsExamining) {
2818 pauseExamInvalid = TRUE;
2819 forwardMostMove = pauseExamForwardMostMove;
2822 forwardMostMove = backwardMostMove = currentMove = moveNum;
2823 if (gameMode == IcsExamining && moveNum > 0 && appData.getMoveList) {
2824 ics_getting_history = H_REQUESTED;
2825 sprintf(str, "%smoves %d\n", ics_prefix, gamenum);
2830 /* Update the clocks */
2831 if (strchr(elapsed_time, '.')) {
2833 timeRemaining[0][moveNum] = whiteTimeRemaining = white_time;
2834 timeRemaining[1][moveNum] = blackTimeRemaining = black_time;
2836 /* Time is in seconds */
2837 timeRemaining[0][moveNum] = whiteTimeRemaining = white_time * 1000;
2838 timeRemaining[1][moveNum] = blackTimeRemaining = black_time * 1000;
2843 if (appData.zippyPlay && newGame &&
2844 gameMode != IcsObserving && gameMode != IcsIdle &&
2845 gameMode != IcsExamining)
2846 ZippyFirstBoard(moveNum, basetime, increment);
2849 /* Put the move on the move list, first converting
2850 to canonical algebraic form. */
2852 if (moveNum <= backwardMostMove) {
2853 /* We don't know what the board looked like before
2855 strcpy(parseList[moveNum - 1], move_str);
2856 strcat(parseList[moveNum - 1], " ");
2857 strcat(parseList[moveNum - 1], elapsed_time);
2858 moveList[moveNum - 1][0] = NULLCHAR;
2859 } else if (ParseOneMove(move_str, moveNum - 1, &moveType,
2860 &fromX, &fromY, &toX, &toY, &promoChar)) {
2861 (void) CoordsToAlgebraic(boards[moveNum - 1],
2862 PosFlags(moveNum - 1), EP_UNKNOWN,
2863 fromY, fromX, toY, toX, promoChar,
2864 parseList[moveNum-1]);
2865 switch (MateTest(boards[moveNum], PosFlags(moveNum), EP_UNKNOWN)){
2871 strcat(parseList[moveNum - 1], "+");
2874 strcat(parseList[moveNum - 1], "#");
2877 strcat(parseList[moveNum - 1], " ");
2878 strcat(parseList[moveNum - 1], elapsed_time);
2879 /* currentMoveString is set as a side-effect of ParseOneMove */
2880 strcpy(moveList[moveNum - 1], currentMoveString);
2881 strcat(moveList[moveNum - 1], "\n");
2882 } else if (strcmp(move_str, "none") == 0) {
2883 /* Again, we don't know what the board looked like;
2884 this is really the start of the game. */
2885 parseList[moveNum - 1][0] = NULLCHAR;
2886 moveList[moveNum - 1][0] = NULLCHAR;
2887 backwardMostMove = moveNum;
2888 startedFromSetupPosition = TRUE;
2889 fromX = fromY = toX = toY = -1;
2891 /* Move from ICS was illegal!? Punt. */
2893 if (appData.testLegality && appData.debugMode) {
2894 sprintf(str, "Illegal move \"%s\" from ICS", move_str);
2895 DisplayError(str, 0);
2898 strcpy(parseList[moveNum - 1], move_str);
2899 strcat(parseList[moveNum - 1], " ");
2900 strcat(parseList[moveNum - 1], elapsed_time);
2901 moveList[moveNum - 1][0] = NULLCHAR;
2902 fromX = fromY = toX = toY = -1;
2906 /* Send move to chess program (BEFORE animating it). */
2907 if (appData.zippyPlay && !newGame && newMove &&
2908 (!appData.getMoveList || backwardMostMove == 0) && first.initDone) {
2910 if ((gameMode == IcsPlayingWhite && WhiteOnMove(moveNum)) ||
2911 (gameMode == IcsPlayingBlack && !WhiteOnMove(moveNum))) {
2912 if (moveList[moveNum - 1][0] == NULLCHAR) {
2913 sprintf(str, "Couldn't parse move \"%s\" from ICS",
2915 DisplayError(str, 0);
2917 if (first.sendTime) {
2918 SendTimeRemaining(&first, gameMode == IcsPlayingWhite);
2920 SendMoveToProgram(moveNum - 1, &first);
2923 if (first.useColors) {
2924 SendToProgram(gameMode == IcsPlayingWhite ?
2926 "black\ngo\n", &first);
2928 SendToProgram("go\n", &first);
2930 first.maybeThinking = TRUE;
2933 } else if (gameMode == IcsObserving || gameMode == IcsExamining) {
2934 if (moveList[moveNum - 1][0] == NULLCHAR) {
2935 sprintf(str, "Couldn't parse move \"%s\" from ICS", move_str);
2936 DisplayError(str, 0);
2938 SendMoveToProgram(moveNum - 1, &first);
2945 if (moveNum > 0 && !gotPremove) {
2946 /* If move comes from a remote source, animate it. If it
2947 isn't remote, it will have already been animated. */
2948 if (!pausing && !ics_user_moved && prevMove == moveNum - 1) {
2949 AnimateMove(boards[moveNum - 1], fromX, fromY, toX, toY);
2951 if (!pausing && appData.highlightLastMove) {
2952 SetHighlights(fromX, fromY, toX, toY);
2956 /* Start the clocks */
2957 whiteFlag = blackFlag = FALSE;
2958 appData.clockMode = !(basetime == 0 && increment == 0);
2960 ics_clock_paused = TRUE;
2962 } else if (ticking == 1) {
2963 ics_clock_paused = FALSE;
2965 if (gameMode == IcsIdle ||
2966 relation == RELATION_OBSERVING_STATIC ||
2967 relation == RELATION_EXAMINING ||
2969 DisplayBothClocks();
2973 /* Display opponents and material strengths */
2974 if (gameInfo.variant != VariantBughouse &&
2975 gameInfo.variant != VariantCrazyhouse) {
2976 if (tinyLayout || smallLayout) {
2977 sprintf(str, "%s(%d) %s(%d) {%d %d}",
2978 gameInfo.white, white_stren, gameInfo.black, black_stren,
2979 basetime, increment);
2981 sprintf(str, "%s (%d) vs. %s (%d) {%d %d}",
2982 gameInfo.white, white_stren, gameInfo.black, black_stren,
2983 basetime, increment);
2989 /* Display the board */
2992 if (appData.premove)
2994 ((gameMode == IcsPlayingWhite) && (WhiteOnMove(currentMove))) ||
2995 ((gameMode == IcsPlayingBlack) && (!WhiteOnMove(currentMove))))
2996 ClearPremoveHighlights();
2998 DrawPosition(FALSE, boards[currentMove]);
2999 DisplayMove(moveNum - 1);
3000 if (appData.ringBellAfterMoves && !ics_user_moved)
3004 HistorySet(parseList, backwardMostMove, forwardMostMove, currentMove-1);
3011 if (appData.icsActive && gameMode != IcsIdle && ics_gamenum > 0) {
3012 ics_getting_history = H_REQUESTED;
3013 sprintf(buf, "%smoves %d\n", ics_prefix, ics_gamenum);
3019 AnalysisPeriodicEvent(force)
3022 if (((programStats.ok_to_send == 0 || programStats.line_is_book)
3023 && !force) || !appData.periodicUpdates)
3026 /* Send . command to Crafty to collect stats */
3027 SendToProgram(".\n", &first);
3029 /* Don't send another until we get a response (this makes
3030 us stop sending to old Crafty's which don't understand
3031 the "." command (sending illegal cmds resets node count & time,
3032 which looks bad)) */
3033 programStats.ok_to_send = 0;
3037 SendMoveToProgram(moveNum, cps)
3039 ChessProgramState *cps;
3042 if (cps->useUsermove) {
3043 SendToProgram("usermove ", cps);
3047 if ((space = strchr(parseList[moveNum], ' ')) != NULL) {
3048 int len = space - parseList[moveNum];
3049 memcpy(buf, parseList[moveNum], len);
3051 buf[len] = NULLCHAR;
3053 sprintf(buf, "%s\n", parseList[moveNum]);
3055 SendToProgram(buf, cps);
3057 SendToProgram(moveList[moveNum], cps);
3062 SendMoveToICS(moveType, fromX, fromY, toX, toY)
3064 int fromX, fromY, toX, toY;
3066 char user_move[MSG_SIZ];
3070 sprintf(user_move, "say Internal error; bad moveType %d (%d,%d-%d,%d)",
3071 (int)moveType, fromX, fromY, toX, toY);
3072 DisplayError(user_move + strlen("say "), 0);
3074 case WhiteKingSideCastle:
3075 case BlackKingSideCastle:
3076 case WhiteQueenSideCastleWild:
3077 case BlackQueenSideCastleWild:
3078 sprintf(user_move, "o-o\n");
3080 case WhiteQueenSideCastle:
3081 case BlackQueenSideCastle:
3082 case WhiteKingSideCastleWild:
3083 case BlackKingSideCastleWild:
3084 sprintf(user_move, "o-o-o\n");
3086 case WhitePromotionQueen:
3087 case BlackPromotionQueen:
3088 case WhitePromotionRook:
3089 case BlackPromotionRook:
3090 case WhitePromotionBishop:
3091 case BlackPromotionBishop:
3092 case WhitePromotionKnight:
3093 case BlackPromotionKnight:
3094 case WhitePromotionKing:
3095 case BlackPromotionKing:
3096 sprintf(user_move, "%c%c%c%c=%c\n",
3097 'a' + fromX, '1' + fromY, 'a' + toX, '1' + toY,
3098 PieceToChar(PromoPiece(moveType)));
3102 sprintf(user_move, "%c@%c%c\n",
3103 ToUpper(PieceToChar((ChessSquare) fromX)),
3104 'a' + toX, '1' + toY);
3107 case WhiteCapturesEnPassant:
3108 case BlackCapturesEnPassant:
3109 case IllegalMove: /* could be a variant we don't quite understand */
3110 sprintf(user_move, "%c%c%c%c\n",
3111 'a' + fromX, '1' + fromY, 'a' + toX, '1' + toY);
3114 SendToICS(user_move);
3118 CoordsToComputerAlgebraic(rf, ff, rt, ft, promoChar, move)
3123 if (rf == DROP_RANK) {
3124 sprintf(move, "%c@%c%c\n",
3125 ToUpper(PieceToChar((ChessSquare) ff)), 'a' + ft, '1' + rt);
3127 if (promoChar == 'x' || promoChar == NULLCHAR) {
3128 sprintf(move, "%c%c%c%c\n",
3129 'a' + ff, '1' + rf, 'a' + ft, '1' + rt);
3131 sprintf(move, "%c%c%c%c%c\n",
3132 'a' + ff, '1' + rf, 'a' + ft, '1' + rt, promoChar);
3138 ProcessICSInitScript(f)
3143 while (fgets(buf, MSG_SIZ, f)) {
3144 SendToICSDelayed(buf,(long)appData.msLoginDelay);
3151 /* Parser for moves from gnuchess, ICS, or user typein box */
3153 ParseOneMove(move, moveNum, moveType, fromX, fromY, toX, toY, promoChar)
3156 ChessMove *moveType;
3157 int *fromX, *fromY, *toX, *toY;
3160 *moveType = yylexstr(moveNum, move);
3161 switch (*moveType) {
3162 case WhitePromotionQueen:
3163 case BlackPromotionQueen:
3164 case WhitePromotionRook:
3165 case BlackPromotionRook:
3166 case WhitePromotionBishop:
3167 case BlackPromotionBishop:
3168 case WhitePromotionKnight:
3169 case BlackPromotionKnight:
3170 case WhitePromotionKing:
3171 case BlackPromotionKing:
3173 case WhiteCapturesEnPassant:
3174 case BlackCapturesEnPassant:
3175 case WhiteKingSideCastle:
3176 case WhiteQueenSideCastle:
3177 case BlackKingSideCastle:
3178 case BlackQueenSideCastle:
3179 case WhiteKingSideCastleWild:
3180 case WhiteQueenSideCastleWild:
3181 case BlackKingSideCastleWild:
3182 case BlackQueenSideCastleWild:
3183 case IllegalMove: /* bug or odd chess variant */
3184 *fromX = currentMoveString[0] - 'a';
3185 *fromY = currentMoveString[1] - '1';
3186 *toX = currentMoveString[2] - 'a';
3187 *toY = currentMoveString[3] - '1';
3188 *promoChar = currentMoveString[4];
3189 if (*fromX < 0 || *fromX > 7 || *fromY < 0 || *fromY > 7 ||
3190 *toX < 0 || *toX > 7 || *toY < 0 || *toY > 7) {
3191 *fromX = *fromY = *toX = *toY = 0;
3194 if (appData.testLegality) {
3195 return (*moveType != IllegalMove);
3197 return !(fromX == fromY && toX == toY);
3202 *fromX = *moveType == WhiteDrop ?
3203 (int) CharToPiece(ToUpper(currentMoveString[0])) :
3204 (int) CharToPiece(ToLower(currentMoveString[0]));
3206 *toX = currentMoveString[2] - 'a';
3207 *toY = currentMoveString[3] - '1';
3208 *promoChar = NULLCHAR;
3212 case ImpossibleMove:
3213 case (ChessMove) 0: /* end of file */
3223 *fromX = *fromY = *toX = *toY = 0;
3224 *promoChar = NULLCHAR;
3231 InitPosition(redraw)
3234 currentMove = forwardMostMove = backwardMostMove = 0;
3235 switch (gameInfo.variant) {
3237 CopyBoard(boards[0], initialPosition);
3239 case VariantTwoKings:
3240 CopyBoard(boards[0], twoKingsPosition);
3241 startedFromSetupPosition = TRUE;
3243 case VariantWildCastle:
3244 CopyBoard(boards[0], initialPosition);
3245 /* !!?shuffle with kings guaranteed to be on d or e file */
3247 case VariantNoCastle:
3248 CopyBoard(boards[0], initialPosition);
3249 /* !!?unconstrained back-rank shuffle */
3251 case VariantFischeRandom:
3252 CopyBoard(boards[0], initialPosition);
3253 /* !!shuffle according to FR rules */
3257 DrawPosition(FALSE, boards[currentMove]);
3261 SendBoard(cps, moveNum)
3262 ChessProgramState *cps;
3265 char message[MSG_SIZ];
3267 if (cps->useSetboard) {
3268 char* fen = PositionToFEN(moveNum);
3269 sprintf(message, "setboard %s\n", fen);
3270 SendToProgram(message, cps);
3276 /* Kludge to set black to move, avoiding the troublesome and now
3277 * deprecated "black" command.
3279 if (!WhiteOnMove(moveNum)) SendToProgram("a2a3\n", cps);
3281 SendToProgram("edit\n", cps);
3282 SendToProgram("#\n", cps);
3283 for (i = BOARD_SIZE - 1; i >= 0; i--) {
3284 bp = &boards[moveNum][i][0];
3285 for (j = 0; j < BOARD_SIZE; j++, bp++) {
3286 if ((int) *bp < (int) BlackPawn) {
3287 sprintf(message, "%c%c%c\n", PieceToChar(*bp),
3289 SendToProgram(message, cps);
3294 SendToProgram("c\n", cps);
3295 for (i = BOARD_SIZE - 1; i >= 0; i--) {
3296 bp = &boards[moveNum][i][0];
3297 for (j = 0; j < BOARD_SIZE; j++, bp++) {
3298 if (((int) *bp != (int) EmptySquare)
3299 && ((int) *bp >= (int) BlackPawn)) {
3300 sprintf(message, "%c%c%c\n", ToUpper(PieceToChar(*bp)),
3302 SendToProgram(message, cps);
3307 SendToProgram(".\n", cps);
3312 IsPromotion(fromX, fromY, toX, toY)
3313 int fromX, fromY, toX, toY;
3315 return gameMode != EditPosition &&
3316 fromX >=0 && fromY >= 0 && toX >= 0 && toY >= 0 &&
3317 ((boards[currentMove][fromY][fromX] == WhitePawn && toY == 7) ||
3318 (boards[currentMove][fromY][fromX] == BlackPawn && toY == 0));
3323 PieceForSquare (x, y)
3327 if (x < 0 || x >= BOARD_SIZE || y < 0 || y >= BOARD_SIZE)
3330 return boards[currentMove][y][x];
3334 OKToStartUserMove(x, y)
3337 ChessSquare from_piece;
3340 if (matchMode) return FALSE;
3341 if (gameMode == EditPosition) return TRUE;
3343 if (x >= 0 && y >= 0)
3344 from_piece = boards[currentMove][y][x];
3346 from_piece = EmptySquare;
3348 if (from_piece == EmptySquare) return FALSE;
3350 white_piece = (int)from_piece >= (int)WhitePawn &&
3351 (int)from_piece <= (int)WhiteKing;
3354 case PlayFromGameFile:
3356 case TwoMachinesPlay:
3364 case MachinePlaysWhite:
3365 case IcsPlayingBlack:
3366 if (appData.zippyPlay) return FALSE;
3368 DisplayMoveError("You are playing Black");
3373 case MachinePlaysBlack:
3374 case IcsPlayingWhite:
3375 if (appData.zippyPlay) return FALSE;
3377 DisplayMoveError("You are playing White");
3383 if (!white_piece && WhiteOnMove(currentMove)) {
3384 DisplayMoveError("It is White's turn");
3387 if (white_piece && !WhiteOnMove(currentMove)) {
3388 DisplayMoveError("It is Black's turn");
3391 if (cmailMsgLoaded && (currentMove < cmailOldMove)) {
3392 /* Editing correspondence game history */
3393 /* Could disallow this or prompt for confirmation */
3396 if (currentMove < forwardMostMove) {
3397 /* Discarding moves */
3398 /* Could prompt for confirmation here,
3399 but I don't think that's such a good idea */
3400 forwardMostMove = currentMove;
3404 case BeginningOfGame:
3405 if (appData.icsActive) return FALSE;
3406 if (!appData.noChessProgram) {
3408 DisplayMoveError("You are playing White");
3415 if (!white_piece && WhiteOnMove(currentMove)) {
3416 DisplayMoveError("It is White's turn");
3419 if (white_piece && !WhiteOnMove(currentMove)) {
3420 DisplayMoveError("It is Black's turn");
3429 if (currentMove != forwardMostMove && gameMode != AnalyzeMode
3430 && gameMode != AnalyzeFile && gameMode != Training) {
3431 DisplayMoveError("Displayed position is not current");
3437 FILE *lastLoadGameFP = NULL, *lastLoadPositionFP = NULL;
3438 int lastLoadGameNumber = 0, lastLoadPositionNumber = 0;
3439 int lastLoadGameUseList = FALSE;
3440 char lastLoadGameTitle[MSG_SIZ], lastLoadPositionTitle[MSG_SIZ];
3441 ChessMove lastLoadGameStart = (ChessMove) 0;
3445 UserMoveEvent(fromX, fromY, toX, toY, promoChar)
3446 int fromX, fromY, toX, toY;
3451 if (fromX < 0 || fromY < 0) return;
3452 if ((fromX == toX) && (fromY == toY)) {
3456 /* Check if the user is playing in turn. This is complicated because we
3457 let the user "pick up" a piece before it is his turn. So the piece he
3458 tried to pick up may have been captured by the time he puts it down!
3459 Therefore we use the color the user is supposed to be playing in this
3460 test, not the color of the piece that is currently on the starting
3461 square---except in EditGame mode, where the user is playing both
3462 sides; fortunately there the capture race can't happen. (It can
3463 now happen in IcsExamining mode, but that's just too bad. The user
3464 will get a somewhat confusing message in that case.)
3468 case PlayFromGameFile:
3470 case TwoMachinesPlay:
3474 /* We switched into a game mode where moves are not accepted,
3475 perhaps while the mouse button was down. */
3478 case MachinePlaysWhite:
3479 /* User is moving for Black */
3480 if (WhiteOnMove(currentMove)) {
3481 DisplayMoveError("It is White's turn");
3486 case MachinePlaysBlack:
3487 /* User is moving for White */
3488 if (!WhiteOnMove(currentMove)) {
3489 DisplayMoveError("It is Black's turn");
3496 case BeginningOfGame:
3499 if ((int) boards[currentMove][fromY][fromX] >= (int) BlackPawn &&
3500 (int) boards[currentMove][fromY][fromX] <= (int) BlackKing) {
3501 /* User is moving for Black */
3502 if (WhiteOnMove(currentMove)) {
3503 DisplayMoveError("It is White's turn");
3507 /* User is moving for White */
3508 if (!WhiteOnMove(currentMove)) {
3509 DisplayMoveError("It is Black's turn");
3515 case IcsPlayingBlack:
3516 /* User is moving for Black */
3517 if (WhiteOnMove(currentMove)) {
3518 if (!appData.premove) {
3519 DisplayMoveError("It is White's turn");
3520 } else if (toX >= 0 && toY >= 0) {
3523 premoveFromX = fromX;
3524 premoveFromY = fromY;
3525 premovePromoChar = promoChar;
3527 if (appData.debugMode)
3528 fprintf(debugFP, "Got premove: fromX %d,"
3529 "fromY %d, toX %d, toY %d\n",
3530 fromX, fromY, toX, toY);
3536 case IcsPlayingWhite:
3537 /* User is moving for White */
3538 if (!WhiteOnMove(currentMove)) {
3539 if (!appData.premove) {
3540 DisplayMoveError("It is Black's turn");
3541 } else if (toX >= 0 && toY >= 0) {
3544 premoveFromX = fromX;
3545 premoveFromY = fromY;
3546 premovePromoChar = promoChar;
3548 if (appData.debugMode)
3549 fprintf(debugFP, "Got premove: fromX %d,"
3550 "fromY %d, toX %d, toY %d\n",
3551 fromX, fromY, toX, toY);
3561 if (toX == -2 || toY == -2) {
3562 boards[0][fromY][fromX] = EmptySquare;
3563 DrawPosition(FALSE, boards[currentMove]);
3564 } else if (toX >= 0 && toY >= 0) {
3565 boards[0][toY][toX] = boards[0][fromY][fromX];
3566 boards[0][fromY][fromX] = EmptySquare;
3567 DrawPosition(FALSE, boards[currentMove]);
3572 if (toX < 0 || toY < 0) return;
3573 userOfferedDraw = FALSE;
3575 if (appData.testLegality) {
3576 moveType = LegalityTest(boards[currentMove], PosFlags(currentMove),
3577 EP_UNKNOWN, fromY, fromX, toY, toX, promoChar);
3578 if (moveType == IllegalMove || moveType == ImpossibleMove) {
3579 DisplayMoveError("Illegal move");
3583 moveType = PromoCharToMoveType(WhiteOnMove(currentMove), promoChar);
3586 if (gameMode == Training) {
3587 /* compare the move played on the board to the next move in the
3588 * game. If they match, display the move and the opponent's response.
3589 * If they don't match, display an error message.
3593 CopyBoard(testBoard, boards[currentMove]);
3594 ApplyMove(fromX, fromY, toX, toY, promoChar, testBoard);
3596 if (CompareBoards(testBoard, boards[currentMove+1])) {
3597 ForwardInner(currentMove+1);
3599 /* Autoplay the opponent's response.
3600 * if appData.animate was TRUE when Training mode was entered,
3601 * the response will be animated.
3603 saveAnimate = appData.animate;
3604 appData.animate = animateTraining;
3605 ForwardInner(currentMove+1);
3606 appData.animate = saveAnimate;
3608 /* check for the end of the game */
3609 if (currentMove >= forwardMostMove) {
3610 gameMode = PlayFromGameFile;
3612 SetTrainingModeOff();
3613 DisplayInformation("End of game");
3616 DisplayError("Incorrect move", 0);
3621 FinishMove(moveType, fromX, fromY, toX, toY, promoChar);
3624 /* Common tail of UserMoveEvent and DropMenuEvent */
3626 FinishMove(moveType, fromX, fromY, toX, toY, promoChar)
3628 int fromX, fromY, toX, toY;
3629 /*char*/int promoChar;
3631 /* Ok, now we know that the move is good, so we can kill
3632 the previous line in Analysis Mode */
3633 if (gameMode == AnalyzeMode && currentMove < forwardMostMove) {
3634 forwardMostMove = currentMove;
3637 /* If we need the chess program but it's dead, restart it */
3638 ResurrectChessProgram();
3640 /* A user move restarts a paused game*/
3644 thinkOutput[0] = NULLCHAR;
3646 MakeMove(fromX, fromY, toX, toY, promoChar); /*updates forwardMostMove*/
3648 if (gameMode == BeginningOfGame) {
3649 if (appData.noChessProgram) {
3650 gameMode = EditGame;
3654 gameMode = MachinePlaysBlack;
3656 sprintf(buf, "%s vs. %s", gameInfo.white, gameInfo.black);
3658 if (first.sendName) {
3659 sprintf(buf, "name %s\n", gameInfo.white);
3660 SendToProgram(buf, &first);
3666 /* Relay move to ICS or chess engine */
3667 if (appData.icsActive) {
3668 if (gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack ||
3669 gameMode == IcsExamining) {
3670 SendMoveToICS(moveType, fromX, fromY, toX, toY);
3674 if (first.sendTime && (gameMode == BeginningOfGame ||
3675 gameMode == MachinePlaysWhite ||
3676 gameMode == MachinePlaysBlack)) {
3677 SendTimeRemaining(&first, gameMode != MachinePlaysBlack);
3679 SendMoveToProgram(forwardMostMove-1, &first);
3680 if (gameMode != EditGame && gameMode != PlayFromGameFile) {
3681 first.maybeThinking = TRUE;
3683 if (currentMove == cmailOldMove + 1) {
3684 cmailMoveType[lastLoadGameNumber - 1] = CMAIL_MOVE;
3688 ShowMove(fromX, fromY, toX, toY); /*updates currentMove*/
3692 switch (MateTest(boards[currentMove], PosFlags(currentMove),
3698 if (WhiteOnMove(currentMove)) {
3699 GameEnds(BlackWins, "Black mates", GE_PLAYER);
3701 GameEnds(WhiteWins, "White mates", GE_PLAYER);
3705 GameEnds(GameIsDrawn, "Stalemate", GE_PLAYER);
3710 case MachinePlaysBlack:
3711 case MachinePlaysWhite:
3712 /* disable certain menu options while machine is thinking */
3713 SetMachineThinkingEnables();
3722 HandleMachineMove(message, cps)
3724 ChessProgramState *cps;
3726 char machineMove[MSG_SIZ], buf1[MSG_SIZ*10], buf2[MSG_SIZ];
3727 char realname[MSG_SIZ];
3728 int fromX, fromY, toX, toY;
3735 * Kludge to ignore BEL characters
3737 while (*message == '\007') message++;
3740 * Look for book output
3742 if (cps == &first && bookRequested) {
3743 if (message[0] == '\t' || message[0] == ' ') {
3744 /* Part of the book output is here; append it */
3745 strcat(bookOutput, message);
3746 strcat(bookOutput, " \n");
3748 } else if (bookOutput[0] != NULLCHAR) {
3749 /* All of book output has arrived; display it */
3750 char *p = bookOutput;
3751 while (*p != NULLCHAR) {
3752 if (*p == '\t') *p = ' ';
3755 DisplayInformation(bookOutput);
3756 bookRequested = FALSE;
3757 /* Fall through to parse the current output */
3762 * Look for machine move.
3764 if ((sscanf(message, "%s %s %s", buf1, buf2, machineMove) == 3 &&
3765 strcmp(buf2, "...") == 0) ||
3766 (sscanf(message, "%s %s", buf1, machineMove) == 2 &&
3767 strcmp(buf1, "move") == 0)) {
3769 /* This method is only useful on engines that support ping */
3770 if (cps->lastPing != cps->lastPong) {
3771 if (gameMode == BeginningOfGame) {
3772 /* Extra move from before last new; ignore */
3773 if (appData.debugMode) {
3774 fprintf(debugFP, "Ignoring extra move from %s\n", cps->which);
3777 if (appData.debugMode) {
3778 fprintf(debugFP, "Undoing extra move from %s, gameMode %d\n",
3779 cps->which, gameMode);
3781 SendToProgram("undo\n", cps);
3787 case BeginningOfGame:
3788 /* Extra move from before last reset; ignore */
3789 if (appData.debugMode) {
3790 fprintf(debugFP, "Ignoring extra move from %s\n", cps->which);
3797 /* Extra move after we tried to stop. The mode test is
3798 not a reliable way of detecting this problem, but it's
3799 the best we can do on engines that don't support ping.
3801 if (appData.debugMode) {
3802 fprintf(debugFP, "Undoing extra move from %s, gameMode %d\n",
3803 cps->which, gameMode);
3805 SendToProgram("undo\n", cps);
3808 case MachinePlaysWhite:
3809 case IcsPlayingWhite:
3810 machineWhite = TRUE;
3813 case MachinePlaysBlack:
3814 case IcsPlayingBlack:
3815 machineWhite = FALSE;
3818 case TwoMachinesPlay:
3819 machineWhite = (cps->twoMachinesColor[0] == 'w');
3822 if (WhiteOnMove(forwardMostMove) != machineWhite) {
3823 if (appData.debugMode) {
3825 "Ignoring move out of turn by %s, gameMode %d"
3826 ", forwardMost %d\n",
3827 cps->which, gameMode, forwardMostMove);
3832 if (!ParseOneMove(machineMove, forwardMostMove, &moveType,
3833 &fromX, &fromY, &toX, &toY, &promoChar)) {
3834 /* Machine move could not be parsed; ignore it. */
3835 sprintf(buf1, "Illegal move \"%s\" from %s machine",
3836 machineMove, cps->which);
3837 DisplayError(buf1, 0);
3838 if (gameMode == TwoMachinesPlay) {
3839 GameEnds(machineWhite ? BlackWins : WhiteWins,
3840 "Forfeit due to illegal move", GE_XBOARD);
3845 hintRequested = FALSE;
3846 lastHint[0] = NULLCHAR;
3847 bookRequested = FALSE;
3848 /* Program may be pondering now */
3849 cps->maybeThinking = TRUE;
3850 if (cps->sendTime == 2) cps->sendTime = 1;
3851 if (cps->offeredDraw) cps->offeredDraw--;
3854 if ((gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack) &&
3856 SendMoveToICS(moveType, fromX, fromY, toX, toY);
3860 /* currentMoveString is set as a side-effect of ParseOneMove */
3861 strcpy(machineMove, currentMoveString);
3862 strcat(machineMove, "\n");
3863 strcpy(moveList[forwardMostMove], machineMove);
3865 MakeMove(fromX, fromY, toX, toY, promoChar);/*updates forwardMostMove*/
3867 if (gameMode == TwoMachinesPlay) {
3868 if (cps->other->sendTime) {
3869 SendTimeRemaining(cps->other,
3870 cps->other->twoMachinesColor[0] == 'w');
3872 SendMoveToProgram(forwardMostMove-1, cps->other);
3875 if (cps->other->useColors) {
3876 SendToProgram(cps->other->twoMachinesColor, cps->other);
3878 SendToProgram("go\n", cps->other);
3880 cps->other->maybeThinking = TRUE;
3883 ShowMove(fromX, fromY, toX, toY); /*updates currentMove*/
3884 if (!pausing && appData.ringBellAfterMoves) {
3888 * Reenable menu items that were disabled while
3889 * machine was thinking
3891 if (gameMode != TwoMachinesPlay)
3892 SetUserThinkingEnables();
3896 /* Set special modes for chess engines. Later something general
3897 * could be added here; for now there is just one kludge feature,
3898 * needed because Crafty 15.10 an