noisebas.h

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// $Id: noisebas.h 751 2006-03-31 15:43:49Z alex $
// noisebas.h
//
// Author  : Mike
// Purpose : base class for fundemental noise generators.
// Version : 1.0
// Started : 30/11/95
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#ifndef INC_NOISEBASE
#define INC_NOISEBASE

#define NOISE1D(v,s) NoiseGen()->VNoise1D(v,s)
#define NOISE2D(v) NoiseGen()->VNoise2D(v)
#define NOISE3D(v) NoiseGen()->VNoise3D(v)
#define SEEDTABLE(v) NoiseGen()->SeedTable(v)

#include "vector3d.h"

/**************************************************************************************

>   class NoiseBase

    Aurthor:    Mike
    Created:    07/07/96
    Notes:      The base class noise function generator. There are several derived
                classes from this which generate different forms of noise. Each of
                these classes 

***************************************************************************************/

class NoiseBase
{
    friend class NoiseMan;

    public:
        NoiseBase();
        virtual ~NoiseBase();

    // you should write your own versions of these noise functions
    // in your derived noise class.
        
        virtual BOOL     Initialise()=0;
        virtual double   VNoise1D(const Vector3D &v, double s)=0;
    //  virtual POINT    VNoise2D(const Vector3D &v)=0;
        virtual Vector3D VNoise3D(const Vector3D &v)=0;
        virtual void     SeedTable(UINT32 seed)=0;

    // the following function make full use of the above
    // noise generators, however the derived creates its noise.
};


/**************************************************************************************

>   class NoiseMan

    Aurthor:    Mike
    Created:    07/07/96
    Notes:      The class which builds a version of noisebase.

***************************************************************************************/

class NoiseMan
{
    public:
         NoiseMan();
        ~NoiseMan();

        BOOL Initialise();
        void Destroy();

        NoiseBase* NoiseGen();

    private:
        NoiseBase* pNoise;
};


#endif

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