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v1.0
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geko authored and geko committed May 14, 2015
1 parent af623c8 commit 13a05fe
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Showing 35 changed files with 3,867 additions and 8,344 deletions.
158 changes: 60 additions & 98 deletions src/ChessBoard.cpp
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Original file line number Diff line number Diff line change
@@ -1,15 +1,28 @@
#include "ChessBoard.h"

ChessBoard::ChessBoard ( ) {
INITIAL_FEN = START_FEN;
START_FEN = string ( STARTPOS );
memset ( &structure, 0, sizeof ( _Tboard ) );
sideToMove = loadFen ( INITIAL_FEN );
sideToMove = loadFen ( START_FEN );
uci = false;
}

ChessBoard::~ChessBoard ( ) {
}

#ifdef DEBUG_MODE
u64
ChessBoard::getBitBoard ( int side ) {
return side ? getBitBoard < WHITE > ( ) : getBitBoard < BLACK > ( );

}

int
ChessBoard::getPieceAt ( int side, u64 bitmapPos ) {
return side ? getPieceAt < WHITE > ( bitmapPos ) : getPieceAt < BLACK > ( bitmapPos );
}
#endif

void
ChessBoard::setUci ( bool b ) {
uci = b;
Expand Down Expand Up @@ -39,7 +52,7 @@ ChessBoard::makeZobristKey ( ) {
while ( x2 ) {
position = BITScanForward ( x2 );
updateZobristKey ( &key, i, position );
x2 &= NOTTABLOG[position];
x2 &= NOTPOW2[position];
}
}
if ( enpassantPosition != -1 )
Expand All @@ -48,98 +61,54 @@ ChessBoard::makeZobristKey ( ) {
while ( x2 ) {
position = BITScanForward ( x2 );
updateZobristKey ( &key, 14, position );
x2 &= NOTTABLOG[position];
x2 &= NOTPOW2[position];
}
return key;
}

int
ChessBoard::getPieceByChar ( char c ) {
for ( int i = 0; i < 12; i++ )
if ( c == FEN_PIECE[i] )
return i;
return -1;
}

void
ChessBoard::display ( ) {
if ( uci )
return;

int t;
char x;

cout << "\n.....a b c d e f g h";
for ( t = 0; t <= 63; t++ ) {
if ( !( t % 8 ) ) {
cout << "\n...---------------------------------\n";
};
x = FEN_PIECE[getPieceAtWhite ( TABLOG[63 - t] )];
if ( x == '-' )
x = FEN_PIECE[getPieceAtBlack ( TABLOG[63 - t] )];
if ( x == '-' )
x = ' ';
switch ( t ) {
case 0:
cout << " 8 | ";
break;
case 8:
cout << " 7 | ";
break;
case 16:
cout << " 6 | ";
break;
case 24:
cout << " 5 | ";
break;
case 32:
cout << " 4 | ";
break;
case 40:
cout << " 3 | ";
break;
case 48:
cout << " 2 | ";
break;
case 56:
cout << " 1 | ";
break;
default:
;
break;
return; //TODO
cout << endl << " a b c d e f g h";
for ( int t = 0; t <= 63; t++ ) {
char x = ' ';
if ( t % 8 == 0 ) {
cout << endl << " ---------------------------------" << endl;
cout << " " << 8 - RANK_AT[t] << " | ";
}
if ( x != ' ' )
cout << x;
else if ( t == 0 || t == 2 || t == 4 || t == 6 || t == 9 || t == 11 || t == 13 || t == 15 || t == 16 || t == 18 || t == 20 || t == 22 || t == 25 || t == 27 || t == 29 || t == 31 || t == 32 || t == 34 || t == 36 || t == 38 || t == 41 || t == 43 || t == 45 || t == 47 || t == 48 || t == 50 || t == 52 || t == 54 || t == 57 || t == 59 || t == 61 || t == 63 )
cout << " ";
else
cout << ".";
cout << " | " << flush;
x = ( x = ( x = FEN_PIECE[getPieceAt < WHITE > ( POW2[63 - t] )] ) != '-' ? x : FEN_PIECE[getPieceAt < BLACK > ( POW2[63 - t] )] ) == '-' ? ' ' : x;
x != ' ' ? cout << x : POW2[t] & WHITE_SQUARES ? cout << " " : cout << ".";
cout << " | ";
};
cout << "\n";
cout << "...---------------------------------\n";
cout << ".....a b c d e f g h\n\n";
cout << endl << " ---------------------------------" << endl;
cout << " a b c d e f g h" << endl << endl;
string fen;
boardToFen ( fen );
cout << endl << fen << endl << endl << flush;
}

int
ChessBoard::getPieceAtWhite ( u64 tablogpos ) {
return ( chessboard[PAWN_WHITE] & tablogpos ) ? PAWN_WHITE : ( ( chessboard[KING_WHITE] & tablogpos ) ? KING_WHITE : ( ( chessboard[ROOK_WHITE] & tablogpos ) ? ROOK_WHITE : ( ( chessboard[BISHOP_WHITE] & tablogpos ) ? BISHOP_WHITE : ( ( chessboard[KNIGHT_WHITE] & tablogpos ) ? KNIGHT_WHITE : ( ( chessboard[QUEEN_WHITE] & tablogpos ) ? QUEEN_WHITE : SQUARE_FREE ) ) ) ) );
}

int
ChessBoard::getPieceAtBlack ( u64 tablogpos ) {
return ( chessboard[PAWN_BLACK] & tablogpos ) ? PAWN_BLACK : ( ( chessboard[KING_BLACK] & tablogpos ) ? KING_BLACK : ( ( chessboard[ROOK_BLACK] & tablogpos ) ? ROOK_BLACK : ( ( chessboard[BISHOP_BLACK] & tablogpos ) ? BISHOP_BLACK : ( ( chessboard[KNIGHT_BLACK] & tablogpos ) ? KNIGHT_BLACK : ( ( chessboard[QUEEN_BLACK] & tablogpos ) ? QUEEN_BLACK : SQUARE_FREE ) ) ) ) );
}

void
ChessBoard::boardToFen ( string & fen ) {
int x, y, l = 0, i = 0, sq;
char row[8];
int q;

for ( y = 0; y < 8; y++ ) {
i = l = 0;
strcpy ( row, "" );
for ( x = 0; x < 8; x++ ) {
sq = ( y * 8 ) + x;
q = getPieceAtBlack ( TABLOG[63 - sq] );
q = getPieceAt < BLACK > ( POW2[63 - sq] );
if ( q == SQUARE_FREE )
q = getPieceAtWhite ( TABLOG[63 - sq] );
q = getPieceAt < WHITE > ( POW2[63 - sq] );
if ( q == SQUARE_FREE )
l++;
else {
Expand Down Expand Up @@ -189,7 +158,6 @@ ChessBoard::boardToFen ( string & fen ) {
fen.append ( " " );
sideToMove ? fen.append ( BOARD[enpassantPosition + 8] ) : fen.append ( BOARD[enpassantPosition - 8] );
}

}

string
Expand All @@ -209,22 +177,30 @@ ChessBoard::decodeBoardinv ( const uchar type, const int a, const int side ) {
ASSERT ( !( type & 0xC ) );
if ( a >= 0 && a < 64 )
return BOARD[a];
#ifdef DEBUG_MODE
display ( );
cout << endl << "CODE|" << a << "|type:" << ( int ) type << endl;
ASSERT ( 0 );
#endif
assert ( 0 );
return "";
}

char
ChessBoard::decodeBoard ( string a ) {
for ( int i = 0; i < 64; i++ ) {
if ( !a.compare ( BOARD[i] ) )
return i;
}
cout << endl << a << endl;
ASSERT ( 0 );
return -1;
}

int
ChessBoard::loadFen ( ) {
return loadFen ( INITIAL_FEN );
return loadFen ( START_FEN );
}

int
ChessBoard::loadFen ( string fen ) {
if ( fen.length ( ) == 0 )
return loadFen ( );
istringstream iss ( fen );
string pos, castle, enpassant, side;
iss >> pos;
Expand All @@ -234,19 +210,18 @@ ChessBoard::loadFen ( string fen ) {
int ix = 0;
int s[64];
memset ( chessboard, 0, sizeof ( chessboard ) );
for ( int ii = 0; ii < pos.length ( ); ii++ ) {
char ch = pos.at ( ii );
for ( unsigned ii = 0; ii < pos.length ( ); ii++ ) {
uchar ch = pos.at ( ii );
if ( ch != '/' ) {
if ( getInvFen[ch] != 0xFF )
s[ix++] = getInvFen[ch];
if ( INV_FEN[ch] != 0xFF )
s[ix++] = INV_FEN[ch];
else if ( ch > 47 && ch < 58 ) {
for ( int t = 0; t < ch - 48; t++ )
s[ix++] = SQUARE_FREE;
}
else {
cout << "Bad FEN position format (" << ( char ) ch << ")" << endl << fen;
cout << "Bad FEN position format (" << ( char ) ch << ") " << fen << endl;
exit ( 1 );
return 0;
};
}
}
Expand All @@ -257,7 +232,7 @@ ChessBoard::loadFen ( string fen ) {
for ( int i = 0; i < 64; i++ ) {
int p = s[63 - i];
if ( p != SQUARE_FREE ) {
chessboard[p] |= TABLOG[i];
chessboard[p] |= POW2[i];
}
};
if ( side == "b" )
Expand Down Expand Up @@ -300,19 +275,6 @@ ChessBoard::loadFen ( string fen ) {
break;
}
}
zobristKey = makeZobristKey ( );
return sideToMove;
}

uchar
ChessBoard::rotateBoardLeft45 ( const u64 ss, const int pos ) {
u64 xx = ss & LEFT[pos];
return TABLOG_VERT45[pos] | bits::ROTATE_LEFT[( xx >> SHIFT_LEFT[pos] ) & 0xFFFFULL] | bits::ROTATE_LEFT[( ( xx ) >> 16 ) & 0xFFFFULL]
| bits::ROTATE_LEFT[( ( xx ) >> 32 ) & 0xFFFFULL] | bits::ROTATE_LEFT[( ( xx ) >> 48 ) & 0xFFFFULL];
}

uchar
ChessBoard::rotateBoardRight45 ( const u64 ss, const int pos ) {
u64 xx = ( ss & RIGHT[pos] );
return TABLOG_VERT45[pos] | bits::ROTATE_RIGHT[( xx >> SHIFT_RIGHT[pos] ) & 0xFFFFULL] | bits::ROTATE_RIGHT[( ( xx ) >> 16 ) & 0xFFFFULL]
| bits::ROTATE_RIGHT[( ( xx ) >> 32 ) & 0xFFFFULL] | bits::ROTATE_RIGHT[( ( xx ) >> 48 ) & 0xFFFFULL];
}
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