org.alcibiade.chess.rules

Class ChessHelper

java.lang.Object

org.alcibiade.chess.rules.ChessHelper

public class ChessHelper
extends Object

Method Summary

Modifier and Type	Method and Description
static ChessBoardModel	applyMove(ChessRules rules, ChessPosition position, ChessMovePath move) Convenient method to apply a move on a position.
static ChessBoardModel	applyMoveAndSwitch(ChessRules rules, ChessPosition position, ChessMovePath move) Convenient method to apply a move on a position and switch the next player flag.
static boolean	isCheck(ChessRules rules, ChessPosition position, ChessMovePath move, boolean swapSides) Check if a move would lead to a Check situation.
static boolean	isCheckMate(ChessRules rules, ChessPosition position, ChessMovePath move) Check if a move would lead to a Checkmate situation.
static ChessPosition	movesToPosition(ChessRules chessRules, PgnMarshaller pgnMarshaller, Collection<String> moves)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isCheck

public static boolean isCheck(ChessRules rules,
                              ChessPosition position,
                              ChessMovePath move,
                              boolean swapSides)
                       throws IllegalMoveException

Check if a move would lead to a Check situation.

Parameters:

rules - the chess rules component

position - the initial position

move - the move to check

swapSides - if true check if the move would lead to a check in favor of the player moving, if false for the opponent.

Returns:

true if the position is a check situation

Throws:

IllegalMoveException

isCheckMate

public static boolean isCheckMate(ChessRules rules,
                                  ChessPosition position,
                                  ChessMovePath move)

Check if a move would lead to a Checkmate situation.

Parameters:

rules - the chess rules component

position - the initial position

move - the move to check

Returns:

true if the position is a check situation

Throws:

IllegalMoveException

applyMove

public static ChessBoardModel applyMove(ChessRules rules,
                                        ChessPosition position,
                                        ChessMovePath move)
                                 throws IllegalMoveException

Convenient method to apply a move on a position. Note: this won't update the next player side flag.

Parameters:

rules - the chess rules component

position - the initial position

move - the move to apply

Returns:

the board position after the move has been played

Throws:

IllegalMoveException

applyMoveAndSwitch

public static ChessBoardModel applyMoveAndSwitch(ChessRules rules,
                                                 ChessPosition position,
                                                 ChessMovePath move)
                                          throws IllegalMoveException

Convenient method to apply a move on a position and switch the next player flag.

Parameters:

rules - the chess rules component

position - the initial position

move - the move to apply

Returns:

the board position after the move has been played

Throws:

IllegalMoveException

movesToPosition

public static ChessPosition movesToPosition(ChessRules chessRules,
                                            PgnMarshaller pgnMarshaller,
                                            Collection<String> moves)