jtge.util.grid.directiongroup
Class FourDirectionGroup

java.lang.Object
  jtge.util.grid.directiongroup.AbstractDirectionGroup
      jtge.util.grid.directiongroup.AbstractSquareDirectionGroup
          jtge.util.grid.directiongroup.FourDirectionGroup

All Implemented Interfaces:

IDirectionGroup

public class FourDirectionGroup

extends AbstractSquareDirectionGroup

Implements a direction group for four directions.

Version:

$Id: FourDirectionGroup.java,v 1.1 2005/09/09 18:24:28 mat007 Exp $

Author:

Jean-Laurent

Constructor Summary

FourDirectionGroup()
Create a direction group with four directions.

Method Summary

Coordinate	transform(Coordinate coordinate, NorthEast direction) Retrieve the coordinate next to another in a given direction.
Coordinate	transform(Coordinate coordinate, NorthWest direction) Retrieve the coordinate next to another in a given direction.
Coordinate	transform(Coordinate coordinate, SouthEast direction) Retrieve the coordinate next to another in a given direction.
Coordinate	transform(Coordinate coordinate, SouthWest direction) Retrieve the coordinate next to another in a given direction.

Methods inherited from class jtge.util.grid.directiongroup.AbstractSquareDirectionGroup

transform, transform, transform, transform

Methods inherited from class jtge.util.grid.directiongroup.AbstractDirectionGroup

add, getNames, getShortNames, iterator

Methods inherited from class java.lang.Object

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

Constructor Detail

FourDirectionGroup

public FourDirectionGroup()

Create a direction group with four directions.

Method Detail

transform

public final Coordinate transform(Coordinate coordinate,
                                  NorthEast direction)

Retrieve the coordinate next to another in a given direction.

Parameters:

coordinate - the origin

direction - the direction

Returns:

a coordinate

transform

public final Coordinate transform(Coordinate coordinate,
                                  NorthWest direction)

Retrieve the coordinate next to another in a given direction.

Parameters:

coordinate - the origin

direction - the direction

Returns:

a coordinate

transform

public final Coordinate transform(Coordinate coordinate,
                                  SouthEast direction)

Retrieve the coordinate next to another in a given direction.

Parameters:

coordinate - the origin

direction - the direction

Returns:

a coordinate

transform

public final Coordinate transform(Coordinate coordinate,
                                  SouthWest direction)

Retrieve the coordinate next to another in a given direction.

Parameters:

coordinate - the origin

direction - the direction

Returns:

a coordinate