jchrest.lib
Class ChessDomain

java.lang.Object
  jchrest.lib.ChessDomain

All Implemented Interfaces:

DomainSpecifics

public class ChessDomain
extends java.lang.Object
implements DomainSpecifics

The ChessDomain is used for chess modelling.

Constructor Summary

ChessDomain()

Method Summary

static Scene	constructBoard(java.lang.String definition) Construct a chess board given a string definition.
static ListPattern	getSalientPieces(ListPattern pattern, java.lang.Boolean isExperienced) Retrieve the salient pieces from the given pattern.
static boolean	isBigPiece(ItemSquarePattern ios) A 'big piece' is anything other than a pawn.
static boolean	isOffensivePiece(ItemSquarePattern ios) An 'offensive piece' is a piece on the other player's side.
ListPattern	normalise(ListPattern pattern) Sort given list pattern into a canonical order of chess pieces, as defined in deGroot and Gobet (1996).
java.util.List<Square>	proposeMovementFixations(Scene board, Square square) Calculate a list of possible destination squares for a piece in a scene.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChessDomain

public ChessDomain()

Method Detail

normalise

public ListPattern normalise(ListPattern pattern)

Sort given list pattern into a canonical order of chess pieces, as defined in deGroot and Gobet (1996). The order is: P p K k B b N n Q q R r If the pieces are the same, then order is based on column, and then on row.

Specified by:

normalise in interface DomainSpecifics

constructBoard

public static Scene constructBoard(java.lang.String definition)

Construct a chess board given a string definition.

isBigPiece

public static boolean isBigPiece(ItemSquarePattern ios)

A 'big piece' is anything other than a pawn. Used to indicate a salient piece for a novice chess player.

isOffensivePiece

public static boolean isOffensivePiece(ItemSquarePattern ios)

An 'offensive piece' is a piece on the other player's side. e.g. a black piece on white's side of the board. Used to indicate a salient piece for an inexperienced chess player.

getSalientPieces

public static ListPattern getSalientPieces(ListPattern pattern,
                                           java.lang.Boolean isExperienced)

Retrieve the salient pieces from the given pattern. The 'isExperienced' flag is used to indicate level of skill of model: isExperienced = false means use the 'isBigPiece' measure, isExperienced = true means use the 'isOffensivePiece' measure.

proposeMovementFixations

public java.util.List<Square> proposeMovementFixations(Scene board,
                                                       Square square)

Calculate a list of possible destination squares for a piece in a scene.

Specified by:

proposeMovementFixations in interface DomainSpecifics