org.alcibiade.chess.model

Interface ChessPosition

All Known Implementing Classes:

ChessBoardModel

public interface ChessPosition

Method Summary

Modifier and Type	Method and Description
int	getHalfMoveClock() This is the number of halfmoves since the last capture or pawn advance.
ChessBoardCoord	getLastPawnDMove() If a pawn has just moved two squares ahead, this will be the destination of this pawn.
int	getMoveNumber() Get the move number.
ChessSide	getNextPlayerTurn() Get the next player to move.
ChessPiece	getPiece(ChessBoardCoord coordinates) Get a piece from the board.
boolean	isCastlingAvailable(ChessSide side, boolean kingside) Check if castling is available at the current position.

Method Detail

getMoveNumber

int getMoveNumber()

Get the move number. It starts at 1, and is incremented after Black's move.

Returns:

the move number.

getHalfMoveClock

int getHalfMoveClock()

This is the number of halfmoves since the last capture or pawn advance. This is used to determine if a draw can be claimed under the fifty-move rule.

Returns:

the halfmove clock

getPiece

ChessPiece getPiece(ChessBoardCoord coordinates)

Get a piece from the board.

Parameters:

coordinates - the piece coordinates

Returns:

the piece at the coordinates, or null if the square is empty.

isCastlingAvailable

boolean isCastlingAvailable(ChessSide side,
                            boolean kingside)

Check if castling is available at the current position. It does not check if the king can actually castle on the next move but rather if it can castle based on potential previous movements.

Parameters:

side - which player should we check (may not be the next player of the position)

kingside - which castling side ? True for king side, false for queen side.

Returns:

true if castling is possible

getNextPlayerTurn

ChessSide getNextPlayerTurn()

Get the next player to move.

Returns:

the side of the next player.

getLastPawnDMove

ChessBoardCoord getLastPawnDMove()

If a pawn has just moved two squares ahead, this will be the destination of this pawn.

Returns:

the destination of the pawn, or null if last move was not a two squares pawn move.