private void AddThreats(
Board board,
Player player,
BoardLocation playerKingLocation,
BoardLocation opposingPieceBoardLocation,
ThreatMatrix threatMatrix)
{
var chessPiece = board[opposingPieceBoardLocation];
switch (chessPiece)
{
case ChessPiece.BlackPawn:
case ChessPiece.WhitePawn:
AddPawnThreats(board, player, playerKingLocation, opposingPieceBoardLocation, threatMatrix);
break;
case ChessPiece.BlackRook:
case ChessPiece.WhiteRook:
AddRookThreats(board, player, playerKingLocation, opposingPieceBoardLocation, threatMatrix);
break;
case ChessPiece.BlackKnight:
case ChessPiece.WhiteKnight:
AddKnightThreats(board, player, playerKingLocation, opposingPieceBoardLocation, threatMatrix);
break;
case ChessPiece.BlackBishop:
case ChessPiece.WhiteBishop:
AddBishopThreats(board, player, playerKingLocation, opposingPieceBoardLocation, threatMatrix);
break;
case ChessPiece.BlackQueen:
case ChessPiece.WhiteQueen:
//queen is rook and bishop so we can cheat it
AddRookThreats(board, player, playerKingLocation, opposingPieceBoardLocation, threatMatrix);
AddBishopThreats(board, player, playerKingLocation, opposingPieceBoardLocation, threatMatrix);
break;
case ChessPiece.BlackKing:
case ChessPiece.WhiteKing:
AddKingThreats(board, player, playerKingLocation, opposingPieceBoardLocation, threatMatrix);
break;
default:
throw new Exception($"Unexpected chessPiece value {opposingPieceBoardLocation.ToString()}");
}
}