extern "C" void
Referee_init_game() // unsigned char board[10][9] = NULL
{
const char side = 'w'; // NOTE: Hard-coded starting side.
srand((DWORD) time(NULL));
InitZobrist();
pos.Startup(NULL);
if ( side == 'b' )
{
pos.ChangeSide();
}
}
int ReadFEN(const char *sFEN, BOARD *board)
{ /*TODO: check FEN validity.*/
int fen_pos = 0;
SQUARE square = 0x70;
board->wk_castle = 0;
board->bk_castle = 0;
board->wq_castle = 0;
board->bq_castle = 0;
board->w_castled = 0;
board->b_castled = 0;
for (char on_board = 1; on_board; fen_pos++) {
char empty = 0;
switch (sFEN[fen_pos]) {
case ' ': on_board = 0;
break;
case '/': square -= 0x18;
break;
case '1': empty = 1;
break;
case '2': empty = 2;
break;
case '3': empty = 3;
break;
case '4': empty = 4;
break;
case '5': empty = 5;
break;
case '6': empty = 6;
break;
case '7': empty = 7;
break;
case '8': empty = 8;
break;
default:
board->squares[square] = CharToPiece(sFEN[fen_pos]);
if (board->squares[square] == W_KING) board->wking_pos = square;
else if (board->squares[square] == B_KING) board->bking_pos = square;
square++;
break;
}
for (int i = 0; i < empty; i++) board->squares[square+i] = EMPTY;
square += empty;
}
board->white_to_move = (sFEN[fen_pos] == 'w');
fen_pos+=2;
for (char on_board = 1; on_board; fen_pos++) { /*Castle rights loop.*/
switch (sFEN[fen_pos]) {
case 'K': board->wk_castle = 1;
break;
case 'k': board->bk_castle = 1;
break;
case 'Q': board->wq_castle = 1;
break;
case 'q': board->bq_castle = 1;
break;
case '-':
break;
default: on_board = 0;
break;
}
}
/*Store En Passant coordinates. TODO: check.*/
board->en_passant = 0x00;
for (char on_board = 1; on_board; fen_pos++) {
switch (sFEN[fen_pos]) {
case ' ': on_board = 0;
break;
default:
board->en_passant += CharToCoordinate(sFEN[fen_pos]);
break;
}
}
/*halfmoves and moves.*/
int rev = atoi(&sFEN[fen_pos]);
while (sFEN[++fen_pos] != ' ');
board->ply = 2*atoi(&sFEN[fen_pos]) - board->white_to_move - 1;
board->rev_plies[board->ply] = rev;
InitZobrist(board);
board->zobrist_history[board->ply] = board->zobrist_key;
InitMaterial(board);
return fen_pos;
}