FactoryCraft-Server/FactoryCraft/RandNoise.cpp

#include "RandNoise.h"

#include <Random.h>
#include <stdlib.h>

#include "Constants.h"
#include "FastNoiseLite.h"
#include "FastNoiseWrapper.h"

RandNoise::RandNoise(int seed)
    : Noise(),
      seed(seed)
{
    FastNoiseLite* n = new FastNoiseLite(seed);
    n->SetNoiseType(FastNoiseLite::NoiseType::NoiseType_OpenSimplex2S);
    n->SetRotationType3D(FastNoiseLite::RotationType3D::RotationType3D_None);
    n->SetFrequency(0.333f);
    n->SetFractalOctaves(1);
    n->SetFractalType(FastNoiseLite::FractalType::FractalType_None);
    n->SetDomainWarpAmp(30.f);
    noise = new FastNoiseWrapper(n, seed);
}

RandNoise::~RandNoise()
{
    delete noise;
}

int RandNoise::getSeed() const
{
    return seed;
}

double RandNoise::getNoise(double x, double y, double z)
{
    double n = noise->getNoise(
        x * 4 + y + z * 7, 7 * x + 4 * y + z, x + 7 * y + 4 * z);
    assert(n >= 0 && n <= 1);
    return n;
}