TerrainAlgorithm.h

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#ifndef VRECKO_NATURE_TERRAIN_TERRAINALGORITHM_H
#define VRECKO_NATURE_TERRAIN_TERRAINALGORITHM_H

#include "../TerrainUtility.h"
#include <osg/Array>

namespace APNature
{
    class TerrainAlgorithm
    {
    protected:

        float *_terrain;
        int _width, _height;

    public:

        // TODO: Add TerrainSurface and make TerrainAlgorithm abstract by inheriting from TerrainSurface. (?)
        TerrainAlgorithm(int width, int height);

        ~TerrainAlgorithm();

        inline unsigned int PointIndex(int x, int y) const { return y * this->_width + x;}

        float GetLowestValue() const;

        float GetHighestValue() const;

    protected:

        float* Allocate(int width, int height);

        void Release();

        void Zero();

        void Flatten(float height);

        inline float GetPointHeight(int x, int y) const { return this->_terrain[PointIndex(x, y)]; }

        inline void SetPointHeight(int x, int y, float height) { this->_terrain[PointIndex(x, y)] = height;}

    };
}

#endif