MidpointDisplacementAlgorithm.h

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#ifndef VRECKO_NATURE_TERRAIN_MIDPOINTDISPLACEMENTALGORITHM_H
#define VRECKO_NATURE_TERRAIN_MIDPOINTDISPLACEMENTALGORITHM_H

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

namespace APNature
{
    class MidpointDisplacementAlgorithm : public TerrainAlgorithm
    {

    public:

        static const int InitialLevel;

        MidpointDisplacementAlgorithm(int width, int height, float cornerValueFrom, float cornerValueTo);

        void RandomizeSurfaceCorners(float cornerValueFrom, float cornerValueTo);

        float* GenerateSurfaceByMidpointDisplacement(int x1, int y1, int x2, int y2, int level);

    private:

        float ComputePseudoRandomError(int x1, int y1, int x2, int y2, int level);
        
    };
}

#endif