public IEnumerable <Voxel> GetVoxelsIntersecting(IEnumerable <Vector3> positions)
{
foreach (Vector3 vec in positions)
{
Voxel vox = new Voxel();
bool success = ChunkData.GetVoxel(vec, ref vox);
if (success)
{
yield return(vox);
}
}
}
public void GenerateCluster(OreCluster cluster, ChunkData chunks)
{
Voxel vox = new Voxel();
for (float x = -cluster.Size.X * 0.5f; x < cluster.Size.X * 0.5f; x += 1.0f)
{
for (float y = -cluster.Size.Y * 0.5f; y < cluster.Size.Y * 0.5f; y += 1.0f)
{
for (float z = -cluster.Size.Z * 0.5f; z < cluster.Size.Z * 0.5f; z += 1.0f)
{
float radius = (float)(Math.Pow(x / cluster.Size.X, 2.0f) + Math.Pow(y / cluster.Size.Y, 2.0f) +
Math.Pow(z / cluster.Size.Z, 2.0f));
if (radius > 1.0f + MathFunctions.Rand(0.0f, 0.25f))
{
continue;
}
Vector3 locPosition = new Vector3(x, y, z);
Vector3 globalPosition = Vector3.Transform(locPosition, cluster.Transform);
if (globalPosition.Y > cluster.Type.MaxSpawnHeight ||
globalPosition.Y < cluster.Type.MinSpawnHeight)
{
continue;
}
if (!chunks.GetVoxel(globalPosition, ref vox))
{
continue;
}
if (vox.IsEmpty)
{
continue;
}
if (!cluster.Type.SpawnInSoil && vox.Type.IsSoil)
{
continue;
}
if (!MathFunctions.RandEvent(cluster.Type.SpawnProbability))
{
continue;
}
vox.Type = cluster.Type;
}
}
}
}
public void GenerateVein(OreVein vein, ChunkData chunks)
{
Voxel vox = new Voxel();
Vector3 curr = vein.Start;
Vector3 directionBias = MathFunctions.RandVector3Box(-1, 1, -0.1f, 0.1f, -1, 1);
for (float t = 0; t < vein.Length; t++)
{
if (curr.Y > vein.Type.MaxSpawnHeight ||
curr.Y < vein.Type.MinSpawnHeight)
{
continue;
}
Vector3 p = new Vector3(curr.X, curr.Y, curr.Z);
if (!chunks.GetVoxel(p, ref vox))
{
continue;
}
if (vox.IsEmpty)
{
continue;
}
if (!MathFunctions.RandEvent(vein.Type.SpawnProbability))
{
continue;
}
if (!vein.Type.SpawnInSoil && vox.Type.IsSoil)
{
continue;
}
vox.Type = vein.Type;
Vector3 step = directionBias + MathFunctions.RandVector3Box(-1, 1, -1, 1, -1, 1) * 0.25f;
step.Normalize();
curr += step;
}
}