/// <summary>
/// Generates flat (round ofc.) planet surface.
/// </summary>
/// <param name="planet">The planet instance.</param>
/// <param name="chunk">The planet chunk instance.</param>
public static bool GenerateTempVoxels(VoxelPlanet planet, VoxelPlanetChunk chunk)
{
const int width = VoxelPlanetChunk.Size;
if (chunk.Voxels == null)
{
return(false);
}
var planetCenter = planet.Position;
var planetRadius = planet.Radius;
var chunkPosition = chunk.Position.ToVector3();
var voxelSize = chunk.GetVoxelSize();
var hasBlock = false;
for (var y = 0; y < width; y++)
{
for (var x = 0; x < width; x++)
{
for (var z = 0; z < width; z++)
{
// calculate all needed data
var idx = z * width * width + y * width + x;
var blockCenter = chunkPosition + new MyVector3(x + 0.5f, y + 0.5f, z + 0.5f) * voxelSize;
var distanceToCenter = Vector3.Distance(planetCenter, blockCenter);
// if block is placed higher than planet radius then it is 0 (air), else the voxel is 1 (block, something)
if (distanceToCenter <= planetRadius)
{
hasBlock = true;
chunk.Voxels[idx] = 1;
}
else
{
chunk.Voxels[idx] = 0;
}
}
}
}
return(hasBlock);
}
public abstract void CreateMesh(VoxelPlanetChunk chunk, VoxelPlanetChunk[] neighborChunks);