public FractalNoiseGenerator(FractalNoiseType noiseType, int seed, float frequency, float fractalGain, FastNoise.Interp interpolation, FastNoise.FractalType fractalType, int octaves, float lacunarity)
{
fastNoise = new FastNoise(seed);
switch (noiseType)
{
case FractalNoiseType.Perlin:
fastNoise.SetNoiseType(FastNoise.NoiseType.PerlinFractal);
break;
case FractalNoiseType.Simplex:
fastNoise.SetNoiseType(FastNoise.NoiseType.SimplexFractal);
break;
case FractalNoiseType.Value:
fastNoise.SetNoiseType(FastNoise.NoiseType.ValueFractal);
break;
}
fastNoise.SetFrequency(frequency);
fastNoise.SetFractalGain(fractalGain);
fastNoise.SetInterp(interpolation);
fastNoise.SetFractalType(fractalType);
fastNoise.SetFractalOctaves(octaves);
fastNoise.SetFractalLacunarity(lacunarity);
}
public static ValueMap FractalNoise(int seed, Vector2Int size, Vector2 offset, FractalNoiseType noiseType, FastNoise.FractalType fractalType, int depth, float frequency = 0.02f)
{
var noise = new FastNoise(seed);
noise.SetFractalType(fractalType);
noise.SetFractalOctaves(depth);
noise.SetFrequency(frequency);
ValueMap output = ScriptableObject.CreateInstance <ValueMap>();
output.Initialize(size.x, size.y);
for (int x = 0; x < size.x; x++)
{
for (int y = 0; y < size.y; y++)
{
float value = 0;
if (noiseType == FractalNoiseType.Cubic)
{
value = noise.GetCubicFractal(offset.x + x, offset.y + y);
}
else if (noiseType == FractalNoiseType.Perlin)
{
value = noise.GetPerlinFractal(offset.x + x, offset.y + y);
}
else if (noiseType == FractalNoiseType.Value)
{
value = noise.GetValueFractal(offset.x + x, offset.y + y);
}
output[x, y] = value;
}
}
return(output);
}