internal static void EvaluateBoardScore(Board board)
{
if ((int)board.EnPassantPosition == 0 && !board.EndGamePhase)
{
int?nullable1 = Zobrist.SearchEval(board.ZobristHash);
if (nullable1.HasValue)
{
int?nullable2 = nullable1;
int num = 0;
if ((nullable2.GetValueOrDefault() == num ? (!nullable2.HasValue ? 1 : 0) : 1) != 0)
{
board.Score = nullable1.Value;
return;
}
}
}
board.Score = 0;
bool insufficientMaterial = true;
if (board.StaleMate || (int)board.FiftyMove >= 50 || (int)board.RepeatedMove >= 3)
{
return;
}
if (board.BlackMate)
{
board.Score = (int)short.MaxValue;
}
else if (board.WhiteMate)
{
board.Score = -32767;
}
else
{
if (board.BlackCheck)
{
board.Score += 70;
if (board.EndGamePhase)
{
board.Score += 10;
}
}
else if (board.WhiteCheck)
{
board.Score -= 70;
if (board.EndGamePhase)
{
board.Score -= 10;
}
}
if (board.BlackCastled)
{
board.Score -= 50;
}
if (board.WhiteCastled)
{
board.Score += 50;
}
if (board.WhoseMove == ChessPieceColor.White)
{
board.Score += 10;
}
else
{
board.Score -= 10;
}
byte bishopCount1 = 0;
byte bishopCount2 = 0;
byte knightCount1 = 0;
byte knightCount2 = 0;
byte num = 0;
Evaluation.blackPawnCount = new short[8];
Evaluation.whitePawnCount = new short[8];
for (byte position = 0; (int)position < 64; ++position)
{
Square square = board.Squares[(int)position];
if (square.Piece != null)
{
if (square.Piece.PieceColor == ChessPieceColor.White)
{
board.Score += Evaluation.EvaluatePieceScore(square, position, board.EndGamePhase, ref knightCount2, ref bishopCount2, ref insufficientMaterial);
if (square.Piece.PieceType == ChessPieceType.King && (int)position != 59 && (int)position != 60)
{
int pawnPos1 = (int)position - 8;
board.Score += Evaluation.CheckPawnWall(board, pawnPos1, (int)position);
int pawnPos2 = (int)position - 7;
board.Score += Evaluation.CheckPawnWall(board, pawnPos2, (int)position);
int pawnPos3 = (int)position - 9;
board.Score += Evaluation.CheckPawnWall(board, pawnPos3, (int)position);
}
}
else if (square.Piece.PieceColor == ChessPieceColor.Black)
{
board.Score -= Evaluation.EvaluatePieceScore(square, position, board.EndGamePhase, ref knightCount1, ref bishopCount1, ref insufficientMaterial);
if (square.Piece.PieceType == ChessPieceType.King && (int)position != 3 && (int)position != 4)
{
int pawnPos1 = (int)position + 8;
board.Score -= Evaluation.CheckPawnWall(board, pawnPos1, (int)position);
int pawnPos2 = (int)position + 7;
board.Score -= Evaluation.CheckPawnWall(board, pawnPos2, (int)position);
int pawnPos3 = (int)position + 9;
board.Score -= Evaluation.CheckPawnWall(board, pawnPos3, (int)position);
}
}
if (square.Piece.PieceType == ChessPieceType.Knight)
{
++num;
if ((int)num > 1)
{
insufficientMaterial = false;
}
}
if ((int)bishopCount1 + (int)bishopCount2 > 1)
{
insufficientMaterial = false;
}
else if ((int)bishopCount1 + (int)knightCount1 > 1)
{
insufficientMaterial = false;
}
else if ((int)bishopCount2 + (int)knightCount2 > 1)
{
insufficientMaterial = false;
}
}
}
if (insufficientMaterial)
{
board.Score = 0;
board.StaleMate = true;
board.InsufficientMaterial = true;
}
else
{
if (board.EndGamePhase)
{
if (board.BlackCheck)
{
board.Score += 10;
}
else if (board.WhiteCheck)
{
board.Score -= 10;
}
}
else
{
if (!board.WhiteCanCastle && !board.WhiteCastled)
{
board.Score -= 50;
}
if (!board.BlackCanCastle && !board.BlackCastled)
{
board.Score += 50;
}
}
if ((int)Evaluation.blackPawnCount[0] >= 1 && (int)Evaluation.blackPawnCount[1] == 0)
{
board.Score += 12;
}
if ((int)Evaluation.blackPawnCount[1] >= 1 && (int)Evaluation.blackPawnCount[0] == 0 && (int)Evaluation.blackPawnCount[2] == 0)
{
board.Score += 14;
}
if ((int)Evaluation.blackPawnCount[2] >= 1 && (int)Evaluation.blackPawnCount[1] == 0 && (int)Evaluation.blackPawnCount[3] == 0)
{
board.Score += 16;
}
if ((int)Evaluation.blackPawnCount[3] >= 1 && (int)Evaluation.blackPawnCount[2] == 0 && (int)Evaluation.blackPawnCount[4] == 0)
{
board.Score += 20;
}
if ((int)Evaluation.blackPawnCount[4] >= 1 && (int)Evaluation.blackPawnCount[3] == 0 && (int)Evaluation.blackPawnCount[5] == 0)
{
board.Score += 20;
}
if ((int)Evaluation.blackPawnCount[5] >= 1 && (int)Evaluation.blackPawnCount[4] == 0 && (int)Evaluation.blackPawnCount[6] == 0)
{
board.Score += 16;
}
if ((int)Evaluation.blackPawnCount[6] >= 1 && (int)Evaluation.blackPawnCount[5] == 0 && (int)Evaluation.blackPawnCount[7] == 0)
{
board.Score += 14;
}
if ((int)Evaluation.blackPawnCount[7] >= 1 && (int)Evaluation.blackPawnCount[6] == 0)
{
board.Score += 12;
}
if ((int)Evaluation.whitePawnCount[0] >= 1 && (int)Evaluation.whitePawnCount[1] == 0)
{
board.Score -= 12;
}
if ((int)Evaluation.whitePawnCount[1] >= 1 && (int)Evaluation.whitePawnCount[0] == 0 && (int)Evaluation.whitePawnCount[2] == 0)
{
board.Score -= 14;
}
if ((int)Evaluation.whitePawnCount[2] >= 1 && (int)Evaluation.whitePawnCount[1] == 0 && (int)Evaluation.whitePawnCount[3] == 0)
{
board.Score -= 16;
}
if ((int)Evaluation.whitePawnCount[3] >= 1 && (int)Evaluation.whitePawnCount[2] == 0 && (int)Evaluation.whitePawnCount[4] == 0)
{
board.Score -= 20;
}
if ((int)Evaluation.whitePawnCount[4] >= 1 && (int)Evaluation.whitePawnCount[3] == 0 && (int)Evaluation.whitePawnCount[5] == 0)
{
board.Score -= 20;
}
if ((int)Evaluation.whitePawnCount[5] >= 1 && (int)Evaluation.whitePawnCount[4] == 0 && (int)Evaluation.whitePawnCount[6] == 0)
{
board.Score -= 16;
}
if ((int)Evaluation.whitePawnCount[6] >= 1 && (int)Evaluation.whitePawnCount[5] == 0 && (int)Evaluation.whitePawnCount[7] == 0)
{
board.Score -= 14;
}
if ((int)Evaluation.whitePawnCount[7] >= 1 && (int)Evaluation.whitePawnCount[6] == 0)
{
board.Score -= 12;
}
if ((int)Evaluation.blackPawnCount[0] >= 1 && (int)Evaluation.whitePawnCount[0] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[0];
}
if ((int)Evaluation.blackPawnCount[1] >= 1 && (int)Evaluation.whitePawnCount[1] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[1];
}
if ((int)Evaluation.blackPawnCount[2] >= 1 && (int)Evaluation.whitePawnCount[2] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[2];
}
if ((int)Evaluation.blackPawnCount[3] >= 1 && (int)Evaluation.whitePawnCount[3] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[3];
}
if ((int)Evaluation.blackPawnCount[4] >= 1 && (int)Evaluation.whitePawnCount[4] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[4];
}
if ((int)Evaluation.blackPawnCount[5] >= 1 && (int)Evaluation.whitePawnCount[5] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[5];
}
if ((int)Evaluation.blackPawnCount[6] >= 1 && (int)Evaluation.whitePawnCount[6] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[6];
}
if ((int)Evaluation.blackPawnCount[7] >= 1 && (int)Evaluation.whitePawnCount[7] == 0)
{
board.Score -= (int)Evaluation.blackPawnCount[7];
}
if ((int)Evaluation.whitePawnCount[0] >= 1 && (int)Evaluation.blackPawnCount[1] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[0];
}
if ((int)Evaluation.whitePawnCount[1] >= 1 && (int)Evaluation.blackPawnCount[1] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[1];
}
if ((int)Evaluation.whitePawnCount[2] >= 1 && (int)Evaluation.blackPawnCount[2] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[2];
}
if ((int)Evaluation.whitePawnCount[3] >= 1 && (int)Evaluation.blackPawnCount[3] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[3];
}
if ((int)Evaluation.whitePawnCount[4] >= 1 && (int)Evaluation.blackPawnCount[4] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[4];
}
if ((int)Evaluation.whitePawnCount[5] >= 1 && (int)Evaluation.blackPawnCount[5] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[5];
}
if ((int)Evaluation.whitePawnCount[6] >= 1 && (int)Evaluation.blackPawnCount[6] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[6];
}
if ((int)Evaluation.whitePawnCount[7] >= 1 && (int)Evaluation.blackPawnCount[7] == 0)
{
board.Score += (int)Evaluation.whitePawnCount[7];
}
if ((int)board.EnPassantPosition != 0 || board.EndGamePhase || board.Score == 0)
{
return;
}
Zobrist.AddEntryEval(board.ZobristHash, board.Score);
}
}
}