Package edu.wisc.game.sql

Class Board.Pos

java.lang.Object

edu.wisc.game.sql.Board.Pos

Enclosing class:

Board

public static class Board.Pos
extends Object

Can be used to describe the position of a piece on the [1:N]x[1:N] grid, or that of a bucket (at (0,0), ... (N+1,N+1)

Field Summary

Fields

Modifier and Type	Field	Description
int	x	Coordinates counted from the bottom left corner.
int	y	Coordinates counted from the bottom left corner.

Constructor Summary

Constructors

Constructor	Description
Pos(int num)
Pos(int _x, int _y)

Method Summary

Modifier and Type	Method	Description
int	bucketNo()	Converts the coordinates of a bucket to a bucket number.
boolean	equals(Object o)
Board.Pos	flip2corner()	Mirror image of this cell into the bottom left corner
HashSet<Integer>	nearestBucket()	Which bucket(s) is/are the nearest to this cell?
int	norm1(Board.Pos q)	1-norm distance
int	norm2sq(Board.Pos q)	Square of 2-norm distance
int	num()	Counted by row (left-to-right), rows being arranged bottom-to-top.
HashSet<Integer>	remotestBucket()	Which bucket(s) is/are the most remote from this cell?
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

x

public final int x

Coordinates counted from the bottom left corner. The left bottom bucket is at (0,0), the corner cell is at (1,1).

y

public final int y

Coordinates counted from the bottom left corner. The left bottom bucket is at (0,0), the corner cell is at (1,1).

Constructor Detail

Pos

public Pos(int _x,
           int _y)

Pos

public Pos(int num)

Parameters:

num - in the [0 .. N*N-1] range

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

num

public int num()

Counted by row (left-to-right), rows being arranged bottom-to-top. In other words, the lexicoraphic order for the (y,x) pairs. The ordering for cells is 1-based.

bucketNo

public int bucketNo()

Converts the coordinates of a bucket to a bucket number.

Returns:

the bucket number, or -1 if the coordinates are not valid

norm2sq

public int norm2sq(Board.Pos q)

Square of 2-norm distance

norm1

public int norm1(Board.Pos q)

1-norm distance

flip2corner

public Board.Pos flip2corner()

Mirror image of this cell into the bottom left corner

nearestBucket

public HashSet<Integer> nearestBucket()

Which bucket(s) is/are the nearest to this cell?

remotestBucket

public HashSet<Integer> remotestBucket()

Which bucket(s) is/are the most remote from this cell?

toString

public String toString()

Overrides:

toString in class Object