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GXLandGenerator.h

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#ifndef __GXLANDGEN
#define __GXLANDGEN



#include "GXStandardDefines.h"
#include "GXAutoArray.h"
#include "GXBitmapLand.h"
#include "GXSquareTemplate.h"

class CGXLandGenerator
{
public:
        CGXLandGenerator();
        virtual ~CGXLandGenerator();

        virtual bool LoadFromStream(IStream* pStream);
        virtual bool SaveToStream(IStream* pStream);
        
        virtual bool LoadFromData(CGXSquare<D3DXCOLOR>* pColorSpline,//x=height, y=rand
                                                                CGXAutoArray<float>* pHeightSpline);


        //uDataSideSize=size of generated height and color squares, usually same as uLandSideSize
        virtual bool GenerateLand(CGXDeviceContainer* pDevice,
                                                           CGXBitmapLand* pOut,
                                                                UINT uLandDataSideSize,
                                                                UINT uColorDataSideSize,
                                                                UINT uMipCount,
                                                                float fSideSize, float fNormalAmp,
                                                                float fHeightAmp, UINT uLandSideSize);
        
        inline CGXSquare<D3DXCOLOR>* GetColorSpline(){return &m_ColorSpline;}
        inline CGXAutoArray<float>* GetHeightSpline(){return &m_HeightSpline;}
        inline CGXSquare<float>*        GetHeightMap(){return &m_HeightMap;}


protected:
        CGXSquare<D3DXCOLOR>            m_ColorSpline;
        CGXAutoArray<float>                     m_HeightSpline;
        UINT                                            m_uMipLevels;
        float                                           m_fFalloff;

        CGXSquare<float>                        m_HeightMap;
};



//(*pCallBack)(type*, const type*, const type*, float, void*, const D3DXVECTOR2*)

void GXColorFiller(D3DXCOLOR*, const D3DXCOLOR*, const D3DXCOLOR*, float, void*, const D3DXVECTOR2*);
void GXHeightFiller(float*, const float*, const float*, float, void*, const D3DXVECTOR2*);


#endif

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