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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: IHexagonBuilder.java,v 1.1 2005/09/09 18:24:28 mat007 Exp $
29   */
30  
31  package jtge.util.grid.builder;
32  
33  import java.awt.Point;
34  import java.awt.Polygon;
35  import jtge.util.grid.Coordinate;
36  import jtge.util.grid.IGrid;
37  
38  /***
39   * @author Jean-Laurent
40   * @version $Id: IHexagonBuilder.java,v 1.1 2005/09/09 18:24:28 mat007 Exp $
41   */
42  public interface IHexagonBuilder
43  {
44      /***
45       * Build a single hexagon.
46       *
47       * @return the polygon
48       */
49      Polygon buildHexagon(); // FIXME rename in buildPolygon and factorize with square grids
50  
51      /***
52       * Build an hexagon within a map.
53       *
54       * @param coordinate position of the hexagon
55       * @return the polygon
56       */
57      Polygon buildHexagon( Coordinate coordinate );
58  
59      /***
60       * Compute the width in pixels of a map consisting of given number of tiles width.
61       *
62       * @param width a number of tiles
63       * @return the width in pixels
64       */
65      int computeWidth( int width );
66  
67      /***
68       * Compute the height in pixels of a map consisting of given number of tiles height.
69       *
70       * @param height a number of tiles
71       * @return the height in pixels
72       */
73      int computeHeight( int height );
74  
75      /***
76       * Picks the coordinate at a given screen coordinate in a grid.
77       *
78       * @param point the screen coordinate in pixels
79       * @param grid the grid to look into
80       * @return the corresponding coordinate or null if outside the grid
81       */
82      Coordinate fromPixel( Point point, IGrid grid );
83  }