net.japanesechess.util
Class PlyBoardFactory

java.lang.Object
  net.japanesechess.util.PlyBoardFactory

public class PlyBoardFactory
extends java.lang.Object

Given a Handicap, previousBoard and current ply, what should the board look like as a packed byte[] array.

Author:

T. Gene Davis

Field Summary

private boolean	black
private BoardPackUtil	bpUtil
private ShogiPly	currentPly
private Handicap	handicap
private byte[]	previousBoard
private ShogiPly	previousPly
private boolean	wasPromoted
private boolean	willPromote

Constructor Summary

PlyBoardFactory()

Method Summary

private int[][]	capture(int[][] brd, java.lang.String toSquare) Only modifies the int[][] if there is a capture that takes place at the toSquare
private byte[]	drop(Tokens token, java.lang.String toSquare)
void	generateAndSetBoard(Handicap handicap, byte[] previousBoard, ShogiPly lastPly, ShogiPly newPly, boolean black) Generates the board that this ply creates and passes to the ply for use in board displays.
private int	getColumn(int location)
private int	getLocationInt(int x, java.lang.String yS) 0-80 location of square on board as used by BoardPackUtil.
private java.lang.String[]	getLocations(boolean[][] to)
private int	getRowNumber(int location)
private byte[]	moveToken(Tokens token, java.lang.String toSquare)
private byte[]	moveToken(Tokens token, java.lang.String toSquare, int fromCol)
private byte[]	moveToken(Tokens token, java.lang.String toSquare, int fromCol, java.lang.String fromRow)
private byte[]	moveToken(Tokens token, java.lang.String toSquare, java.lang.String fromRow)
private byte[]	parseNotation(java.lang.String note) All the good stuff goes here.
private java.lang.String	rowNumber2Letter(int r) Utility for converting zero based row numbers into their proper characters.
private byte[]	tokenCaptures(Tokens token) Uses previous ply's x2 and y2 as x2 and y2 for this move.
private byte[]	tokenCaptures(Tokens token, int col) Uses previous ply's x2 and y2 as x2 and y2 for this move.
private byte[]	tokenCaptures(Tokens token, int col, java.lang.String row) Uses previous ply's x2 and y2 as x2 and y2 for this move.
private byte[]	tokenCaptures(Tokens token, java.lang.String row) Uses previous ply's x2 and y2 as x2 and y2 for this move.

Methods inherited from class java.lang.Object

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

Field Detail

handicap

private Handicap handicap

previousBoard

private byte[] previousBoard

previousPly

private ShogiPly previousPly

currentPly

private ShogiPly currentPly

black

private boolean black

willPromote

private boolean willPromote

wasPromoted

private boolean wasPromoted

bpUtil

private BoardPackUtil bpUtil

Constructor Detail

PlyBoardFactory

public PlyBoardFactory()

Method Detail

generateAndSetBoard

public void generateAndSetBoard(Handicap handicap,
                                byte[] previousBoard,
                                ShogiPly lastPly,
                                ShogiPly newPly,
                                boolean black)

Generates the board that this ply creates and passes to the ply for use in board displays. Also, along the way it populates all ply attributes that pertain to the move. Notation and comment where previously populated. This should be the ONLY private method.

Parameters:

handicap - needed because handicaps may have less tokens and undefined padding to fill the unused space

previousBoard - needed to fully interpret notation

lastPly - needed for the notation 'xS' or 'Gx' where a token captures the last moved token at (x2, y2)

newPly - current ply to populate

black - whose turn is it now? black or white.

parseNotation

private byte[] parseNotation(java.lang.String note)

All the good stuff goes here.

Parameters:

note -

Returns:

drop

private byte[] drop(Tokens token,
                    java.lang.String toSquare)

tokenCaptures

private byte[] tokenCaptures(Tokens token,
                             int col,
                             java.lang.String row)

Uses previous ply's x2 and y2 as x2 and y2 for this move.

Parameters:

token - the token that does the capturing.

Returns:

tokenCaptures

private byte[] tokenCaptures(Tokens token,
                             int col)

Uses previous ply's x2 and y2 as x2 and y2 for this move.

Parameters:

token - the token that does the capturing.

Returns:

tokenCaptures

private byte[] tokenCaptures(Tokens token,
                             java.lang.String row)

Uses previous ply's x2 and y2 as x2 and y2 for this move.

Parameters:

token - the token that does the capturing.

Returns:

tokenCaptures

private byte[] tokenCaptures(Tokens token)

Uses previous ply's x2 and y2 as x2 and y2 for this move.

Parameters:

token - the token that does the capturing.

Returns:

getLocations

private java.lang.String[] getLocations(boolean[][] to)

capture

private int[][] capture(int[][] brd,
                        java.lang.String toSquare)

Only modifies the int[][] if there is a capture that takes place at the toSquare

Parameters:

brd -

toSquare -

Returns:

moveToken

private byte[] moveToken(Tokens token,
                         java.lang.String toSquare)

moveToken

private byte[] moveToken(Tokens token,
                         java.lang.String toSquare,
                         int fromCol)

moveToken

private byte[] moveToken(Tokens token,
                         java.lang.String toSquare,
                         java.lang.String fromRow)

moveToken

private byte[] moveToken(Tokens token,
                         java.lang.String toSquare,
                         int fromCol,
                         java.lang.String fromRow)

rowNumber2Letter

private java.lang.String rowNumber2Letter(int r)

Utility for converting zero based row numbers into their proper characters.

Parameters:

r -

Returns:

getRowNumber

private int getRowNumber(int location)

getColumn

private int getColumn(int location)

getLocationInt

private int getLocationInt(int x,
                           java.lang.String yS)

0-80 location of square on board as used by BoardPackUtil.

Parameters:

x -

y -

Returns: