private void CreateDefaultBoard()
{
_board = OthelloBoard.CreateStartingBoard();
}
static void ReadBook()
{
#if USE_TRANSPOSITION_TABLE
StreamReader reader = null;
try
{
reader = new StreamReader("book.txt");
}
catch
{
// No opening book, oh well...
return;
}
// Each line is a game, and looks like: +d3-c3+c4-e3+c2-b3+d2...-a5+a7-a8+b8-b7: -04 10
// -04 is the final score for black. 10 is always there and should be ignored
for (int x = 0; ; x++)
{
string s = reader.ReadLine();
if (s == null)
{
break;
}
OthelloBoard board = OthelloBoard.CreateStartingBoard();
int i;
i = s.LastIndexOf(':');
int val = int.Parse(s.Substring(i + 2, 3));
if (val < 0)
{
val -= 500;
}
else if (val > 0)
{
val += 500;
}
// Only use the first 10 moves to limit size
for (i = 0; i < (10 * 3); i += 3)
{
if (s[i] == ':')
{
break;
}
OthelloMove move = new OthelloMove((s[i + 1] - 'a'), (s[i + 2] - '1'));
board.PlayMove(move);
board.FixUpCurrentPlayer();
_transpositionTable.AddEntry(board.GetHashCode(), 60 /*ply*/,
(board.CurrentPlayer == SquareState.Black) ? val : -val,
TranspositionTableElementType.Exact, -1, -1);
move = null;
}
board.FixUpCurrentPlayer();
/*
* int expectedVal = board.BlackSquares - board.WhiteSquares;
* Debug.Assert(val == expectedVal);
* Debug.Assert(board.GameOver);
*/
board = null;
}
reader.Close();
#endif
}