public static void GenerateShelf(ref float[,] map, int chunkX, int chunkY)
{
var height = map.GetLength(0);
var width = map.GetLength(1);
TerrainComponents.GenerateSmoothComponent(ref map, chunkX, chunkY);
var coarseShelf = new float[height, width];
TerrainComponents.GenerateCoarseComponent(ref coarseShelf, chunkX, chunkY);
var coarseMap = new float[height, width];
Noise2D.Uniform(
ref coarseMap,
chunkX * (height - 1),
chunkY * (width - 1),
0.005f,
1f,
Noise2D.Perlin);
Transformation2D.Exponent(ref coarseMap, 1.1f);
Transformation2D.ClampLower(ref coarseMap, 0f);
Transformation2D.Mutlipy(ref coarseShelf, coarseMap);
Transformation2D.Combine(ref map, 1f, coarseShelf, 5f);
}