hexgrid.h

/***************************************************************************
 *   Copyright (C) 2005-2008 by the FIFE team                              *
 *   http://www.fifengine.de                                               *
 *   This file is part of FIFE.                                            *
 *                                                                         *
 *   FIFE is free software; you can redistribute it and/or                 *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
 ***************************************************************************/

#ifndef FIFE_MODEL_GRIDS_HEXGRID_H
#define FIFE_MODEL_GRIDS_HEXGRID_H

// Standard C++ library includes

// 3rd party library includes

// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "util/base/fife_stdint.h"

#include "cellgrid.h"

namespace FIFE {
    class HexGrid: public CellGrid {
    public:
        HexGrid(bool allow_diagonals=false);
        virtual ~HexGrid();

        bool isAccessible(const ModelCoordinate& curpos, const ModelCoordinate& target);
        const std::string& getType() const;
        const std::string& getName() const;
        double getAdjacentCost(const ModelCoordinate& curpos, const ModelCoordinate& target);
        uint32_t getCellSideCount() const { return 6; }
        ExactModelCoordinate toMapCoordinates(const ExactModelCoordinate& layer_coords);
        ModelCoordinate toLayerCoordinates(const ExactModelCoordinate& map_coord);
        ExactModelCoordinate toExactLayerCoordinates(const ExactModelCoordinate& map_coord);
        void getVertices(std::vector<ExactModelCoordinate>& vtx, const ModelCoordinate& cell);
        CellGrid* clone();

    private:
        double getXZigzagOffset(double y);
    };
}

#endif