internal static void addNoise(List <Coord> coords, RandomProvider random, float horizontalScale, float verticalScale)
{
float offset = random.getFloat();
foreach (Coord coord in coords)
{
var perlin = ElevationUtils.getPerlin(offset,
horizontalScale,
coord.x,
coord.y);
coord.setElevation(coord.elevation + perlin * verticalScale);
}
}
/**
* Applys perlin noise across the map with a radial bias, maximum strength at the center, 0 at map width.
* Changing the horizonal scale should change the frequency of the effect. Smaller numbers = less detailed.
* Change the vertical scale to change the strength of the effect.
*/
internal static void addRadialWeightedNoise(Vector3 center, float radius, List <Coord> coords, RandomProvider random, float horizontalScale, float verticalScale)
{
float offset = random.getFloat();
foreach (Coord coord in coords)
{
var perlin = ElevationUtils.getPerlin(
offset,
horizontalScale,
coord.x / radius,
coord.y / radius
);
float distance = Vector3.Distance(center, coord.toVector3());
coord.setElevation(Mathf.Lerp(coord.elevation, coord.elevation + perlin * verticalScale, 1 - Mathf.Clamp01(distance / radius)));
}
}