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perlin.h
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perlin.h
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#ifndef PERLIN_H_
#define PERLIN_H_
#include <stdlib.h>
#define SAMPLE_SIZE 1024
class Perlin
{
public:
Perlin(int octaves,float freq,float amp,int seed);
float Get(float x,float y)
{
float vec[2];
vec[0] = x;
vec[1] = y;
return perlin_noise_2D(vec);
};
void init_perlin(int n,float p);
float perlin_noise_2D(float vec[2]);
float noise1(float arg);
float noise2(float vec[2]);
float noise3(float vec[3]);
float noise3(float n1, float n2, float n3);
void normalize2(float v[2]);
void normalize3(float v[3]);
void init(void);
int mOctaves;
float mFrequency;
float mAmplitude;
int mSeed;
int p[SAMPLE_SIZE + SAMPLE_SIZE + 2];
float g3[SAMPLE_SIZE + SAMPLE_SIZE + 2][3];
float g2[SAMPLE_SIZE + SAMPLE_SIZE + 2][2];
float g1[SAMPLE_SIZE + SAMPLE_SIZE + 2];
bool mStart;
};
#endif