int start(void) {
int i;
bool bPonderTime;
UcciCommStruct UcciComm;
char szLibEvalFile[1024];
const char *szEngineName;
PositionStruct posProbe;
#ifdef _WIN32
HMODULE hModule;
#else
void *hModule;
#endif
if (BootLine() != UCCI_COMM_UCCI) {
return 0;
}
LocatePath(Search.szBookFile, "BOOK.DAT");
LocatePath(szLibEvalFile, cszLibEvalFile);
hModule = LoadEvalApi(szLibEvalFile);
bPonderTime = false;
PreGenInit();
NewHash(24); // 24=16MB, 25=32MB, 26=64MB, ...
Search.pos.FromFen("rnbakabnr/9/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/9/RNBAKABNR b - - 0 1");
Search.pos.nDistance = 0;
Search.PreEvaluate(&Search.pos, &PreEval);
Search.nBanMoves = 0;
Search.bQuit = Search.bBatch = Search.bDebug = Search.bAlwaysCheck = false;
Search.bUseHash = Search.bUseBook = Search.bNullMove = Search.bKnowledge = true;
Search.bIdle = false;
Search.nCountMask = INTERRUPT_COUNT - 1;
Search.nRandomMask = 0;
Search.rc4Random.InitRand();
szEngineName = Search.GetEngineName();
if (szEngineName == NULL) {
PrintLn("#id name ElephantEye");
} else {
//printf("id name %s / ElephantEye\n", szEngineName);
//fflush(stdout);
pipeOutputWrite("id name %s / ElephantEye\n", szEngineName);
}
PrintLn("#id version 3.15");
PrintLn("#id copyright 2004-2008 www.elephantbase.net");
PrintLn("#id author Morning Yellow");
PrintLn("#id user ElephantEye Test Team");
PrintLn("#option usemillisec type check default true");
PrintLn("#option promotion type check default false");
PrintLn("#option batch type check default false");
PrintLn("#option debug type check default false");
PrintLn("#option ponder type check default false");
PrintLn("#option alwayscheck type check default false");
PrintLn("#option usehash type check default true");
PrintLn("#option usebook type check default true");
//printf("option bookfiles type string default %s\n", Search.szBookFile);
//fflush(stdout);
pipeOutputWrite("#option bookfiles type string default %s\n", Search.szBookFile);
//printf("option evalapi type string default %s\n", szLibEvalFile);
//fflush(stdout);
pipeOutputWrite("#option evalapi type string default %s\n", szLibEvalFile);
PrintLn("#option hashsize type spin min 16 max 1024 default 16");
PrintLn("#option idle type combo var none var small var medium var large default none");
PrintLn("#option pruning type combo var none var small var medium var large default large");
PrintLn("#option knowledge type combo var none var small var medium var large default large");
PrintLn("#option randomness type combo var none var small var medium var large default none");
PrintLn("#option newgame type button");
PrintLn("#ucciok");
// 以下是接收指令和提供对策的循环体
while (!Search.bQuit) {
switch (IdleLine(UcciComm, Search.bDebug)) {
case UCCI_COMM_ISREADY:
PrintLn("#readyok");
break;
case UCCI_COMM_STOP:
PrintLn("#nobestmove");
break;
case UCCI_COMM_POSITION:
BuildPos(Search.pos, UcciComm);
Search.pos.nDistance = 0;
Search.PreEvaluate(&Search.pos, &PreEval);
Search.nBanMoves = 0;
break;
case UCCI_COMM_BANMOVES:
Search.nBanMoves = UcciComm.nBanMoveNum;
for (i = 0; i < UcciComm.nBanMoveNum; i ++) {
Search.wmvBanList[i] = COORD_MOVE(UcciComm.lpdwBanMovesCoord[i]);
}
break;
case UCCI_COMM_SETOPTION:
switch (UcciComm.Option) {
case UCCI_OPTION_PROMOTION:
PreEval.bPromotion = UcciComm.bCheck;
break;
case UCCI_OPTION_BATCH:
Search.bBatch = UcciComm.bCheck;
break;
case UCCI_OPTION_DEBUG:
Search.bDebug = UcciComm.bCheck;
break;
case UCCI_OPTION_PONDER:
bPonderTime = UcciComm.bCheck;
break;
case UCCI_OPTION_ALWAYSCHECK:
Search.bAlwaysCheck = UcciComm.bCheck;
break;
case UCCI_OPTION_USEHASH:
Search.bUseHash = UcciComm.bCheck;
break;
case UCCI_OPTION_USEBOOK:
Search.bUseBook = UcciComm.bCheck;
break;
case UCCI_OPTION_BOOKFILES:
if (AbsolutePath(UcciComm.szOption)) {
strcpy(Search.szBookFile, UcciComm.szOption);
} else {
LocatePath(Search.szBookFile, UcciComm.szOption);
}
break;
case UCCI_OPTION_EVALAPI:
if (AbsolutePath(UcciComm.szOption)) {
strcpy(szLibEvalFile, UcciComm.szOption);
} else {
LocatePath(szLibEvalFile, UcciComm.szOption);
}
FreeEvalApi(hModule);
hModule = LoadEvalApi(szLibEvalFile);
break;
case UCCI_OPTION_HASHSIZE:
DelHash();
i = 19; // 小于1，分配0.5M置换表
while (UcciComm.nSpin > 0) {
UcciComm.nSpin /= 2;
i ++;
}
NewHash(MAX(i, 24)); // 最小的置换表设为16M
break;
case UCCI_OPTION_IDLE:
switch (UcciComm.Grade) {
case UCCI_GRADE_NONE:
Search.bIdle = false;
Search.nCountMask = INTERRUPT_COUNT - 1;
break;
case UCCI_GRADE_SMALL:
Search.bIdle = true;
Search.nCountMask = INTERRUPT_COUNT / 4 - 1;
break;
case UCCI_GRADE_MEDIUM:
Search.bIdle = true;
Search.nCountMask = INTERRUPT_COUNT / 16 - 1;
break;
case UCCI_GRADE_LARGE:
Search.bIdle = true;
Search.nCountMask = INTERRUPT_COUNT / 64 - 1;
break;
default:
break;
}
break;
case UCCI_OPTION_PRUNING:
Search.bNullMove = (UcciComm.Grade != UCCI_GRADE_NONE);
break;
case UCCI_OPTION_KNOWLEDGE:
Search.bKnowledge = (UcciComm.Grade != UCCI_GRADE_NONE);
break;
case UCCI_OPTION_RANDOMNESS:
switch (UcciComm.Grade) {
case UCCI_GRADE_NONE:
Search.nRandomMask = 0;
break;
case UCCI_GRADE_SMALL:
Search.nRandomMask = 1;
break;
case UCCI_GRADE_MEDIUM:
Search.nRandomMask = 3;
break;
case UCCI_GRADE_LARGE:
Search.nRandomMask = 7;
break;
default:
break;
}
break;
default:
break;
}
break;
case UCCI_COMM_GO:
Search.bPonder = UcciComm.bPonder;
Search.bDraw = UcciComm.bDraw;
switch (UcciComm.Go) {
case UCCI_GO_DEPTH:
Search.nGoMode = GO_MODE_INFINITY;
Search.nNodes = 0;
SearchMain(UcciComm.nDepth);
break;
case UCCI_GO_NODES:
Search.nGoMode = GO_MODE_NODES;
Search.nNodes = UcciComm.nNodes;
SearchMain(UCCI_MAX_DEPTH);
break;
case UCCI_GO_TIME_MOVESTOGO:
case UCCI_GO_TIME_INCREMENT:
Search.nGoMode = GO_MODE_TIMER;
if (UcciComm.Go == UCCI_GO_TIME_MOVESTOGO) {
// 对于时段制，把剩余时间平均分配到每一步，作为适当时限。
// 剩余步数从1到5，最大时限依次是剩余时间的100%、90%、80%、70%和60%，5以上都是50%
Search.nProperTimer = UcciComm.nTime / UcciComm.nMovesToGo;
Search.nMaxTimer = UcciComm.nTime * MAX(5, 11 - UcciComm.nMovesToGo) / 10;
} else {
// 对于加时制，假设棋局会在20回合内结束，算出平均每一步的适当时限，最大时限是剩余时间的一半
Search.nProperTimer = UcciComm.nTime / 20 + UcciComm.nIncrement;
Search.nMaxTimer = UcciComm.nTime / 2;
}
// 如果是后台思考的时间分配策略，那么适当时限设为原来的1.25倍
Search.nProperTimer += (bPonderTime ? Search.nProperTimer / 4 : 0);
Search.nMaxTimer = MIN(Search.nMaxTimer, Search.nProperTimer * 10);
SearchMain(UCCI_MAX_DEPTH);
break;
default:
break;
}
break;
case UCCI_COMM_PROBE:
BuildPos(posProbe, UcciComm);
if (!PopHash(posProbe)) {
PopLeaf(posProbe);
}
break;
case UCCI_COMM_QUIT:
Search.bQuit = true;
break;
default:
break;
}
}
DelHash();
FreeEvalApi(hModule);
PrintLn("#bye");
return 0;
}
int main(void) {
int i;
bool bPonderTime;
UcciCommStruct UcciComm;
const char *szEngineName;
PositionStruct posProbe;
#ifdef _WIN32
HMODULE hModule;
#else
void *hModule;
#endif
int mv, stat;
char fen[1024];
/* disable stdio buffering */
if (setvbuf(stdin, NULL, _IONBF, 0) != 0)
perror("setvbuf");
if (setvbuf(stdout, NULL, _IONBF, 0) != 0)
perror("setvbuf");
// myfp = fopen("test", "w+");
// fputs("test\n", myfp);
xb_mv_left = 40;
xb_mv_ctrl = 40;
xb_tm_left = 30000;
xb_tm_ctrl = 30000;
xb_tm_incr = 0;
xb_post = 0;
xb_ponder = 0;
xb_depth = UCCI_MAX_DEPTH;
xb_force = 0;
Search.nHashSize = 4;
Search.nRandom = 0;
Search.nRandomSave = 2;
/* if not working with autotools */
#ifndef PKGDATADIR
#define PKGDATADIR "."
#endif
LocatePath(Search.szBookFile, PKGDATADIR "/book.dat");
//LocatePath(Search.szBookFile, "book.dat");
LocatePath(Search.szLibEvalFile, cszLibEvalFile);
hModule = LoadEvalApi(Search.szLibEvalFile);
bPonderTime = false;
PreGenInit();
NewHash(24); // 24=16MB, 25=32MB, 26=64MB, ...
Search.pos.FromFen(cszStartFen);
Search.pos.nDistance = 0;
Search.PreEvaluate(&Search.pos, &PreEval);
Search.nBanMoves = 0;
Search.bQuit = Search.bBatch = Search.bDebug = Search.bAlwaysCheck = false;
Search.bUseHash = Search.bUseBook = Search.bNullMove = Search.bKnowledge = true;
Search.bIdle = false;
Search.nCountMask = INTERRUPT_COUNT - 1;
Search.nRandomMask = 0;
Search.rc4Random.InitRand();
szEngineName = Search.GetEngineName();
if (szEngineName == NULL) {
PrintLn("id name ElephantEye");
} else {
printf("id name %s / ElephantEye\n", szEngineName);
fflush(stdout);
}
PrintLn("id version 3.15");
PrintLn("id copyright 2004-2008 www.elephantbase.net");
PrintLn("id author Morning Yellow");
PrintLn("id user ElephantEye Test Team");
while (BootLine() != UCCI_COMM_XBOARD);
// PrintLn("option usemillisec type check default true");
// PrintLn("option promotion type check default false");
// PrintLn("option batch type check default false");
// PrintLn("option debug type check default false");
// PrintLn("option ponder type check default false");
// PrintLn("option alwayscheck type check default false");
// PrintLn("option usehash type check default true");
// PrintLn("option usebook type check default true");
// printf("option bookfiles type string default %s\n", Search.szBookFile);
// fflush(stdout);
// printf("option evalapi type string default %s\n", szLibEvalFile);
// fflush(stdout);
// PrintLn("option hashsize type spin min 16 max 1024 default 16");
// PrintLn("option idle type combo var none var small var medium var large default none");
// PrintLn("option pruning type combo var none var small var medium var large default large");
// PrintLn("option knowledge type combo var none var small var medium var large default large");
// PrintLn("option randomness type combo var none var small var medium var large default none");
// PrintLn("option newgame type button");
// PrintLn("ucciok");
// 以下是接收指令和提供对策的循环体
while (!Search.bQuit) {
switch (IdleLine(UcciComm, Search.bDebug)) {
case UCCI_COMM_STOP:
PrintLn("nobestmove");
break;
case UCCI_COMM_POSITION:
BuildPos(Search.pos, UcciComm);
Search.pos.nDistance = 0;
Search.PreEvaluate(&Search.pos, &PreEval);
Search.nBanMoves = 0;
hint_mv = 0;
break;
case UCCI_COMM_NEW:
Search.pos.FromFen(cszStartFen);
Search.pos.nDistance = 0;
Search.PreEvaluate(&Search.pos, &PreEval);
Search.nBanMoves = 0;
xb_force = 0;
xb_tm_left = xb_tm_ctrl;
xb_mv_left = xb_mv_ctrl;
xb_depth = UCCI_MAX_DEPTH;
hint_mv = 0;
break;
case UCCI_COMM_BANMOVES:
Search.nBanMoves = UcciComm.nBanMoveNum;
for (i = 0; i < UcciComm.nBanMoveNum; i ++) {
Search.wmvBanList[i] = COORD_MOVE(UcciComm.lpdwBanMovesCoord[i]);
}
break;
case UCCI_COMM_SETOPTION:
switch (UcciComm.Option) {
case UCCI_OPTION_PROMOTION:
PreEval.bPromotion = UcciComm.bCheck;
break;
case UCCI_OPTION_ALWAYSCHECK:
Search.bAlwaysCheck = UcciComm.bCheck;
break;
case UCCI_OPTION_USEHASH:
Search.bUseHash = UcciComm.bCheck;
break;
case UCCI_OPTION_USEBOOK:
Search.bUseBook = UcciComm.bCheck;
break;
case UCCI_OPTION_BOOKFILES:
if (AbsolutePath(UcciComm.szOption)) {
strcpy(Search.szBookFile, UcciComm.szOption);
} else {
LocatePath(Search.szBookFile, UcciComm.szOption);
}
break;
case UCCI_OPTION_EVALAPI:
if (AbsolutePath(UcciComm.szOption)) {
strcpy(Search.szLibEvalFile, UcciComm.szOption);
} else {
LocatePath(Search.szLibEvalFile, UcciComm.szOption);
}
FreeEvalApi(hModule);
hModule = LoadEvalApi(Search.szLibEvalFile);
break;
case UCCI_OPTION_HASHSIZE:
DelHash();
Search.nHashSize = UcciComm.nSpin;
NewHash(UcciComm.nSpin + 20);
break;
case UCCI_OPTION_PRUNING:
Search.bNullMove = UcciComm.bCheck;
break;
case UCCI_OPTION_KNOWLEDGE:
Search.bKnowledge = UcciComm.bCheck;
break;
case UCCI_OPTION_RANDOMNESS:
Search.nRandom = UcciComm.nSpin;
if (UcciComm.nSpin)
Search.nRandomSave = UcciComm.nSpin;
Search.nRandomMask = (1 << Search.nRandom) - 1;
break;
default:
break;
}
break;
case UCCI_COMM_GO:
// Search.bPonder = UcciComm.bPonder;
// Search.bDraw = UcciComm.bDraw;
// switch (UcciComm.Go) {
// case UCCI_GO_DEPTH:
// Search.nGoMode = GO_MODE_INFINITY;
// Search.nNodes = 0;
// SearchMain(UcciComm.nDepth);
// break;
// case UCCI_GO_NODES:
// Search.nGoMode = GO_MODE_NODES;
// Search.nNodes = UcciComm.nNodes;
// SearchMain(UCCI_MAX_DEPTH);
// break;
// case UCCI_GO_TIME_MOVESTOGO:
// case UCCI_GO_TIME_INCREMENT:
// Search.nGoMode = GO_MODE_TIMER;
// if (UcciComm.Go == UCCI_GO_TIME_MOVESTOGO) {
// // 对于时段制，把剩余时间平均分配到每一步，作为适当时限。
// // 剩余步数从1到5，最大时限依次是剩余时间的100%、90%、80%、70%和60%，5以上都是50%
// Search.nProperTimer = UcciComm.nTime / UcciComm.nMovesToGo;
// Search.nMaxTimer = UcciComm.nTime * MAX(5, 11 - UcciComm.nMovesToGo) / 10;
// } else {
// // 对于加时制，假设棋局会在20回合内结束，算出平均每一步的适当时限，最大时限是剩余时间的一半
// Search.nProperTimer = UcciComm.nTime / 20 + UcciComm.nIncrement;
// Search.nMaxTimer = UcciComm.nTime / 2;
// }
// // 如果是后台思考的时间分配策略，那么适当时限设为原来的1.25倍
// Search.nProperTimer += (bPonderTime ? Search.nProperTimer / 4 : 0);
// Search.nMaxTimer = MIN(Search.nMaxTimer, Search.nProperTimer * 10);
// SearchMain(UCCI_MAX_DEPTH);
// break;
// default:
// break;
// }
xb_force = 0;
Search.nGoMode = GO_MODE_TIMER;
prepare_clock();
SearchMain(xb_depth);
update_clock();
break;
case UCCI_COMM_PROBE:
BuildPos(posProbe, UcciComm);
if (!PopHash(posProbe)) {
PopLeaf(posProbe);
}
break;
case UCCI_COMM_QUIT:
Search.bQuit = true;
break;
case UCCI_COMM_UNDO:
if (Search.pos.nDistance >= 1)
Search.pos.UndoMakeMove();
hint_mv = 0;
break;
case UCCI_COMM_REMOVE:
if (Search.pos.nDistance >= 2) {
Search.pos.UndoMakeMove();
Search.pos.UndoMakeMove();
}
hint_mv = 0;
break;
case UCCI_COMM_USERMOVE:
mv = COORD_MOVE(UcciComm.dwMoveCoord);
TryMove(Search.pos, stat, mv);
switch (stat) {
case MOVE_ILLEGAL:
printf("Illegal move: %.4s\n", (char *)&UcciComm.dwMoveCoord);
break;
case MOVE_INCHECK:
printf("Illegal move (in check): %.4s\n", (char *)&UcciComm.dwMoveCoord);
break;
case MOVE_DRAW:
puts("1/2-1/2 {Draw by rule}\n");
break;
case MOVE_PERPETUAL_LOSS:
printf("Illegal move (perpetual attack): %.4s\n", (char *)&UcciComm.dwMoveCoord);
break;
case MOVE_PERPETUAL:
puts("1/2-1/2 {Draw by repetition}\n");
break;
case MOVE_MATE:
if (Search.pos.sdPlayer == 0)
puts("1-0 {checkmate or stalemate}\n");
else
puts("0-1 {checkmate or stalemate}\n");
break;
default:
Search.pos.MakeMove(mv);
if (!xb_force) {
prepare_clock();
SearchMain(xb_depth);
update_clock();
}
break;
}
break;
default:
break;
}
}
DelHash();
FreeEvalApi(hModule);
return 0;
}