public ChessMove(PieceRank rank, PiecePlayer player, int horizontalLocationFrom, int verticalLocationFrom, int horizontalLocationTo, int verticalLocationTo, ChessSpecialMove specialMove)
{
Rank = rank;
Player = player;
From = new ChessBoardLocation(horizontalLocationFrom, verticalLocationFrom);
To = new ChessBoardLocation(horizontalLocationTo, verticalLocationTo);
SpecialMove = specialMove;
}
private void GetPawnMoves(PiecePlayer player, List <ChessMove> moves, int column, int row)
{
ChessSpecialMove specialMove = ChessSpecialMove.None;
if (player == PiecePlayer.White)
{
if (row == 1)
{
specialMove = ChessSpecialMove.Promotion;
}
if (IsOccupiedByOpponent(player, column, row - 1) == false)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column, row - 1, specialMove));
}
if (row == 6 && IsEmpty(column, row - 1) == true && IsEmpty(column, row - 2) == true)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column, row - 2));
}
// Move only available for pawn if there is opponent piece:
if (IsOccupiedByOpponent(player, column + 1, row - 1) == true)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column + 1, row - 1, specialMove));
}
if (IsOccupiedByOpponent(player, column - 1, row - 1) == true)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column - 1, row - 1, specialMove));
}
GetPawnMovesEnPassant(player, moves, column, row, -1, -1);
GetPawnMovesEnPassant(player, moves, column, row, 1, -1);
}
else
{
if (row == 6)
{
specialMove = ChessSpecialMove.Promotion;
}
if (IsOccupiedByOpponent(player, column, row + 1) == false)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column, row + 1, specialMove));
}
if (row == 1 && IsEmpty(column, row + 1) == true && IsEmpty(column, row + 2) == true)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column, row + 2));
}
// Move only available for pawn if there is opponent piece:
if (IsOccupiedByOpponent(player, column + 1, row + 1) == true)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column + 1, row + 1, specialMove));
}
if (IsOccupiedByOpponent(player, column - 1, row + 1) == true)
{
moves.Add(new ChessMove(PieceRank.Pawn, player, column, row, column - 1, row + 1, specialMove));
}
GetPawnMovesEnPassant(player, moves, column, row, -1, 1);
GetPawnMovesEnPassant(player, moves, column, row, 1, 1);
}
}