private SafeMesh GenerateCaveMap(Vector3 offsets)
{
int size = WorldBuilder.CHUNK_SIZE + 1;
Tile currentTile = WorldBuilder.GetTile(offsets);
// Gets added to coordinates, is a decimal to make sure it does not end up at an integer
float addendum = 1000.17777f;
// Coordinates are divided by scale, larger scale = larger/more spread out caves
float scale = 20f;
float[,,] caveMap = new float[size, CAVE_DEPTH * 2, size];
for (int x = 0; x < size; x++)
{
for (int z = 0; z < size; z++)
{
// -5 to make the amount of rocks sticking out of the terrain lower
int coordinateHeight = Mathf.FloorToInt(currentTile.HeightMap[x, z]) - 5;
int caveHeight = coordinateHeight + CAVE_DEPTH;
// Cave height make height dynamic based on heightmap[x,z]
for (int y = 0; y < caveHeight; y++)
{
if (y == 0)
{
caveMap[x, y, z] = 1;
}
else if (y <= 2)
{
double tempVal = ridgedMultifractal.GetValue((z + offsets.z + addendum) / scale, (y + addendum) / scale, (x + offsets.x + addendum) / scale);
int isCave = tempVal < 0 ? 0 : 1;
caveMap[x, y, z] = isCave;
}
else
{
double tempVal = ridgedMultifractal.GetValue((x + offsets.x + addendum) / scale, (y + addendum) / scale, (z + offsets.z + addendum) / scale);
int isCave = tempVal < 0.35 ? 0 : 1;
caveMap[x, y, z] = isCave;
}
}
}
}
SafeMesh safeMesh = MarchingCubes.BuildMesh(caveMap);
safeMesh.position = offsets;
return(safeMesh);
}
