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);
}
public static List <Tuple <uint, uint> > getPossibleMoves(Board board, Piece piece)
{
List <Tuple <uint, uint> > moves = new List <Tuple <uint, uint> >();
// Check down moves
int x = (int)piece.getX();
int y = (int)piece.getY();
while (true)
{
y--;
if (!board.withinBoard(x, y))
{
break;
}
Piece p = board.getPieceAt((uint)x, (uint)y);
if (p == null)
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
}
else
{
if (p.getColour() != piece.getColour())
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
break;
}
else
{
break;
}
}
}
// Check up moves
x = (int)piece.getX();
y = (int)piece.getY();
while (true)
{
y++;
if (!board.withinBoard(x, y))
{
break;
}
Piece p = board.getPieceAt((uint)x, (uint)y);
if (p == null)
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
}
else
{
if (p.getColour() != piece.getColour())
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
break;
}
else
{
break;
}
}
}
// Check right moves
x = (int)piece.getX();
y = (int)piece.getY();
while (true)
{
x++;
if (!board.withinBoard(x, y))
{
break;
}
Piece p = board.getPieceAt((uint)x, (uint)y);
if (p == null)
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
}
else
{
if (p.getColour() != piece.getColour())
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
break;
}
else
{
break;
}
}
}
// Check left moves
x = (int)piece.getX();
y = (int)piece.getY();
while (true)
{
x--;
if (!board.withinBoard(x, y))
{
break;
}
Piece p = board.getPieceAt((uint)x, (uint)y);
if (p == null)
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
}
else
{
if (p.getColour() != piece.getColour())
{
moves.Add(new Tuple <uint, uint>((uint)x, (uint)y));
break;
}
else
{
break;
}
}
}
// Filter for check situations
CommonRules.checkFilter(ref moves, board, piece);
// Done, all moves found
return(moves);
}