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1   /***
2    * Redistribution  and use  in source  and binary  forms, with  or without
3    * modification, are permitted provided  that the following conditions are
4    * met :
5    *
6    * . Redistributions  of  source  code  must  retain  the  above copyright
7    *   notice, this list of conditions and the following disclaimer.
8    *
9    * . Redistributions in  binary form  must reproduce  the above  copyright
10   *   notice, this list of conditions  and the following disclaimer in  the
11   *   documentation and/or other materials provided with the distribution.
12   *
13   * . The name of the author may not be used to endorse or promote products
14   *   derived from this software without specific prior written permission.
15   *
16   * THIS SOFTWARE IS  PROVIDED BY THE  AUTHOR ``AS IS''  AND ANY EXPRESS  OR
17   * IMPLIED  WARRANTIES,  INCLUDING,  BUT   NOT  LIMITED  TO,  THE   IMPLIED
18   * WARRANTIES OF MERCHANTABILITY AND  FITNESS FOR A PARTICULAR  PURPOSE ARE
19   * DISCLAIMED.  IN NO  EVENT SHALL  THE AUTHOR  BE LIABLE  FOR ANY  DIRECT,
20   * INDIRECT,  INCIDENTAL,  SPECIAL,  EXEMPLARY,  OR  CONSEQUENTIAL  DAMAGES
21   * (INCLUDING,  BUT  NOT LIMITED  TO,  PROCUREMENT OF  SUBSTITUTE  GOODS OR
22   * SERVICES;  LOSS  OF USE,  DATA,  OR PROFITS;  OR  BUSINESS INTERRUPTION)
23   * HOWEVER CAUSED  AND ON  ANY THEORY  OF LIABILITY,  WHETHER IN  CONTRACT,
24   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25   * ANY  WAY  OUT OF  THE  USE OF  THIS  SOFTWARE, EVEN  IF  ADVISED OF  THE
26   * POSSIBILITY OF SUCH DAMAGE.
27   *
28   * $Id: EightDirectionGroup.java,v 1.1 2005/09/09 18:24:28 mat007 Exp $
29   */
30  
31  package jtge.util.grid.directiongroup;
32  
33  import jtge.util.grid.Coordinate;
34  import jtge.util.grid.direction.Direction;
35  import jtge.util.grid.direction.NorthEast;
36  import jtge.util.grid.direction.NorthWest;
37  import jtge.util.grid.direction.SouthEast;
38  import jtge.util.grid.direction.SouthWest;
39  
40  /***
41   * Implements a direction group for eight directions.
42   *
43   * @author Jean-Laurent
44   * @version $Id: EightDirectionGroup.java,v 1.1 2005/09/09 18:24:28 mat007 Exp $
45   */
46  public class EightDirectionGroup extends AbstractSquareDirectionGroup
47  {
48      /***
49       * Create a direction group with eight directions.
50       */
51      public EightDirectionGroup()
52      {
53          add( Direction.NORTH );
54          add( Direction.NORTH_EAST );
55          add( Direction.EAST );
56          add( Direction.SOUTH_EAST );
57          add( Direction.SOUTH );
58          add( Direction.SOUTH_WEST );
59          add( Direction.WEST );
60          add( Direction.NORTH_WEST );
61      }
62  
63      /***
64       * {@inheritDoc}
65       */
66      public final Coordinate transform( final Coordinate coordinate, final NorthEast direction )
67      {
68          return direction.transform( coordinate );
69      }
70  
71      /***
72       * {@inheritDoc}
73       */
74      public final Coordinate transform( final Coordinate coordinate, final NorthWest direction )
75      {
76          return direction.transform( coordinate );
77      }
78  
79      /***
80       * {@inheritDoc}
81       */
82      public final Coordinate transform( final Coordinate coordinate, final SouthEast direction )
83      {
84          return direction.transform( coordinate );
85      }
86  
87      /***
88       * {@inheritDoc}
89       */
90      public final Coordinate transform( final Coordinate coordinate, final SouthWest direction )
91      {
92          return direction.transform( coordinate );
93      }
94  }