jens@0: /*  This code is based on Apple's "GeekGameBoard" sample code, version 1.0.
jens@0:     http://developer.apple.com/samplecode/GeekGameBoard/
jens@0:     Copyright © 2007 Apple Inc. Copyright © 2008 Jens Alfke. All Rights Reserved.
jens@0: 
jens@0:     Redistribution and use in source and binary forms, with or without modification, are permitted
jens@0:     provided that the following conditions are met:
jens@0: 
jens@0:     * Redistributions of source code must retain the above copyright notice, this list of conditions
jens@0:       and the following disclaimer.
jens@0:     * Redistributions in binary form must reproduce the above copyright notice, this list of
jens@0:       conditions and the following disclaimer in the documentation and/or other materials provided
jens@0:       with the distribution.
jens@0: 
jens@0:     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
jens@0:     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
jens@0:     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
jens@0:     BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
jens@0:     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
jens@0:     PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
jens@0:     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
jens@0:     THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
jens@0: */
jens@0: #import "Grid.h"
jens@0: 
jens@0: 
jens@0: /** Hexagonal grid.
jens@0:     The hexes are oriented with points facing up and down.
jens@0:     The coords are still rectangular, since the hexes line up in straight horizontal rows,
jens@0:     but every odd-numbered row of hexes is offset slightly to the right. */
jens@0: @interface HexGrid : Grid
jens@0: {
jens@0:     CGFloat _side, _capHeight;
jens@0:     CGPathRef _cellPath;
jens@0: }
jens@0: 
jens@0: /** Similar to -addAllCells, but only adds enough cells to create a hexagonal board. */
jens@0: - (void) addCellsInHexagon;
jens@0: 
jens@0: @end
jens@0: 
jens@0: 
jens@0: @interface Hex : GridCell
jens@0: 
jens@0: @property (readonly) Hex *nw, *ne, *e, *se, *sw, *w;    // Absolute directions (n = increasing row#)
jens@0: @property (readonly) Hex *fl, *fr, *r, *br, *bl, *l;    // Relative to player (upside-down for player 2)
jens@0: 
jens@0: @end