FiniteAmortizedNoise2D.h

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#pragma once

#include "Common.h"


class CFiniteAmortizedNoise2D{  
  private: //Perlin noise tables
    float g2[B][2]; 
    int p[B];  
    void initPerlinNoiseTables(); 

  private: //Amortized noise stuff
    float *uax; 
    float *vax; 
    float *ubx; 
    float *vbx; 
    float *uay; 
    float *vay; 
    float *uby; 
    float *vby; 
    float* spline; 

    float getRandomUnitFloat(); 

    unsigned int h(const unsigned int x); 
    unsigned int h(const unsigned int x, const unsigned int y); 

    void FillUp(float* t, const float s, const int n); 
    void FillDn(float* t, const float s, const int n); 

    void initEdgeTables(const int x, const int y, const int n); 
    void initSplineTable(const int n); 

    float getNoise(const int i, const int j);  
    void getNoise(const int n, const int i0, const int j0, float** cell);  
    void addNoise(const int n, const int i0, const int j0, const float scale, float** cell);  

  public:
    CFiniteAmortizedNoise2D(const unsigned n); 
    ~CFiniteAmortizedNoise2D(); 
    float generate(int x, int y, const int m0, const int m1, const int n, float** cell); 
}; //CFiniteAmortizedNoise2D