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: FlatShiftedHexagonDirectionGroup.java,v 1.2 2005/09/09 22:36:05 mat007 Exp $
29 */
30
31 package jtge.util.grid.directiongroup;
32
33 import jtge.util.grid.Coordinate;
34 import jtge.util.grid.GridUtil;
35
36 /***
37 * An HexagonDirectionGroup to be used with flat-shifted hexagon grid.
38 *
39 * @author Jean-Laurent Fabre de Morlhon
40 * @version $Id: FlatShiftedHexagonDirectionGroup.java,v 1.2 2005/09/09 22:36:05 mat007 Exp $
41 */
42 public class FlatShiftedHexagonDirectionGroup extends AbstractFlatHexagonDirectionGroup
43 {
44 /***
45 * {@inheritDoc}
46 */
47 protected final boolean shift( final Coordinate coordinate )
48 {
49 return GridUtil.even( coordinate.getX() );
50 }
51 }