public static List<Tuple<uint, uint>> getPossibleMoves(Board board, Piece piece)
{
List<Tuple<uint, uint>> moves = new List<Tuple<uint, uint>>();
int px = (int) piece.getX();
int py = (int) piece.getY();
// Loops over jump locations
foreach (Tuple<int, int> item in jmpList)
{
int jmpX = item.Item1 + px;
int jmpY = item.Item2 + py;
if (board.withinBoard(jmpX, jmpY))
{
Piece P = board.getPieceAt((uint) jmpX, (uint) jmpY);
if (P != null)
{
if (!piece.isSameColour(P))
{
moves.Add(new Tuple<uint, uint>((uint)jmpX, (uint)jmpY));
}
}
else
{
moves.Add(new Tuple<uint, uint>((uint)jmpX, (uint)jmpY));
}
}
}
// Filter for check situations
CommonRules.checkFilter(ref moves, board, piece);
return moves;
}
// Returns a list of all possible moves
public static List<Tuple<uint, uint>> getPossibleMoves(Board board, Piece piece)
{
List<Tuple<uint, uint>> tmpList = new List<Tuple<uint, uint>>();
short yMod;
short passantRow;
if (piece.getColour() == "white")
{
yMod = 1;
passantRow = 4;
}
else
{
yMod = -1;
passantRow = 3;
}
// Take left
if (board.withinBoard((int) piece.getX() - 1, (int) piece.getY() + yMod))
{
Piece P = board.getPieceAt((uint)(piece.getX() - 1), (uint)(piece.getY() + yMod));
if (P != null)
{
if (!piece.isSameColour(P))
{
tmpList.Add(new Tuple<uint, uint>((uint)(piece.getX() - 1), (uint)(piece.getY() + yMod)));
}
}
}
//Take right
if (board.withinBoard((int)piece.getX() + 1, (int)piece.getY() + yMod))
{
Piece P = board.getPieceAt((uint)(piece.getX() + 1), (uint)(piece.getY() + yMod));
if (P != null)
{
if (!piece.isSameColour(P))
{
tmpList.Add(new Tuple<uint, uint>((uint)(piece.getX() + 1), (uint)(piece.getY() + yMod)));
}
}
}
//Move 1
if (board.withinBoard((int)piece.getX(), (int)piece.getY() + yMod))
{
Piece P = board.getPieceAt(piece.getX(), (uint)(piece.getY() + yMod));
if (P == null)
{
tmpList.Add(new Tuple<uint, uint>(piece.getX(), (uint)(piece.getY() + yMod)));
}
}
//Move 2 (Only first move)
if (!piece.movedFromInit())
{
if (board.withinBoard((int)piece.getX(), (int)piece.getY() + 2 * yMod))
{
Piece P = board.getPieceAt(piece.getX(), (uint)(piece.getY() + 2 * yMod));
Piece P2 = board.getPieceAt(piece.getX(), (uint)(piece.getY() + yMod));
if (P == null && P2 == null)
{
tmpList.Add(new Tuple<uint, uint>(piece.getX(), (uint)(piece.getY() + 2 * yMod)));
//((Pawn)piece).setDoubleStepTurn(board.getTurn());
}
}
}
//En Passant
if (piece.getY() == passantRow)
{
if ((piece.getX() + 1) < Board.BOARD_SIZE_X)
{
Piece P1 = board.getPieceAt(piece.getX() + 1, piece.getY());
if (P1 != null)
{
if (P1 is Pawn)
if (((Pawn)P1).getDoubleStepTurn() == board.getTurn() - 1)
tmpList.Add(new Tuple<uint, uint>(piece.getX() + 1, (uint)(piece.getY() + yMod)));
}
}
if ((int)piece.getX() - 1 >= 0)
{
Piece P2 = board.getPieceAt(piece.getX() - 1, piece.getY());
if (P2 != null)
{
if (P2 is Pawn)
if (((Pawn)P2).getDoubleStepTurn() == board.getTurn() - 1)
tmpList.Add(new Tuple<uint, uint>(piece.getX() - 1, (uint)(piece.getY() + yMod)));
}
}
}
// Filter for check situations
CommonRules.checkFilter(ref tmpList, board, piece);
return tmpList;
}