com.editev.chess
Class Counts

java.lang.Object
  |
  +--com.editev.chess.Counts

public class Counts

extends java.lang.Object

This class associates a count with each square on a chess board. If we are choosing a piece to move, the count represents how many legal moves a Piece on that square would have. If we have chosen a piece to move and are displaying the target squares, then we are assigning indices to the possible target moves.

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See Also:

the source here.

Field Summary

short[][]

counts Contains one byte of count for each piece on a chess board.

Constructor Summary

Counts()

Method Summary

void	clearCount(Square sq) Clears the count for a specific Square.
void	clearCounts() Clears all 64 counts.
void	computePieceMoves(GameMoves game) Computes the starting move index for each Piece that has legal moves.
void	computePieceTargets(GameMoves game, short startMove) Count NO_PIECE on the square of the piece that's moving, and the move index on all valid target squares.
short	getCount(Square sq)
void	incCount(Square sq) Increments the count for a specific Square.
void	markStart(Square sq) Sets the count for a specific Square to indicate that it's the start piece for a move.
void	setMove(Square sq, short move) Sets the count for a square to be a specific move number.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

counts

public final short[][] counts

Contains one byte of count for each piece on a chess board.

Constructor Detail

Counts

public Counts()

Method Detail

getCount

public short getCount(Square sq)

Returns:

the count for a specific Square.

clearCount

public void clearCount(Square sq)

Clears the count for a specific Square.

incCount

public void incCount(Square sq)

Increments the count for a specific Square.

markStart

public void markStart(Square sq)

Sets the count for a specific Square to indicate that it's the start piece for a move.

setMove

public void setMove(Square sq,
                    short move)

Sets the count for a square to be a specific move number.

clearCounts

public void clearCounts()

Clears all 64 counts.

computePieceMoves

public void computePieceMoves(GameMoves game)

Computes the starting move index for each Piece that has legal moves.

computePieceTargets

public void computePieceTargets(GameMoves game,
                                short startMove)

Count NO_PIECE on the square of the piece that's moving, and the move index on all valid target squares. Used when we are displaying a board with possible targets for a Piece move.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

A String description of the Counts.