public static bool Go(Voxel voxel, Voxel.Coord center, int radius, Action<List<DynamicVoxel>> callback = null)
{
if (!voxel[center].Permanent)
{
// Break off a chunk of this voxel into a new DynamicMap.
List<Voxel.Coord> edges = new List<Voxel.Coord>();
Voxel.Coord ripStart = center.Move(-radius, -radius, -radius);
Voxel.Coord ripEnd = center.Move(radius, radius, radius);
Dictionary<Voxel.Box, bool> permanentBoxes = new Dictionary<Voxel.Box, bool>();
foreach (Voxel.Coord c in ripStart.CoordinatesBetween(ripEnd))
{
Voxel.Box box = voxel.GetBox(c);
if (box != null && box.Type.Permanent)
permanentBoxes[box] = true;
}
foreach (Voxel.Box b in permanentBoxes.Keys)
{
// Top and bottom
for (int x = b.X - 1; x <= b.X + b.Width; x++)
{
for (int z = b.Z - 1; z <= b.Z + b.Depth; z++)
{
Voxel.Coord coord = new Voxel.Coord { X = x, Y = b.Y + b.Height, Z = z };
if (coord.Between(ripStart, ripEnd))
edges.Add(coord);
coord = new Voxel.Coord { X = x, Y = b.Y - 1, Z = z };
if (coord.Between(ripStart, ripEnd))
edges.Add(coord);
}
}
// Outer shell
for (int y = b.Y; y < b.Y + b.Height; y++)
{
// Left and right
for (int z = b.Z - 1; z <= b.Z + b.Depth; z++)
{
Voxel.Coord coord = new Voxel.Coord { X = b.X - 1, Y = y, Z = z };
if (coord.Between(ripStart, ripEnd))
edges.Add(coord);
coord = new Voxel.Coord { X = b.X + b.Width, Y = y, Z = z };
if (coord.Between(ripStart, ripEnd))
edges.Add(coord);
}
// Backward and forward
for (int x = b.X; x < b.X + b.Width; x++)
{
Voxel.Coord coord = new Voxel.Coord { X = x, Y = y, Z = b.Z - 1 };
if (coord.Between(ripStart, ripEnd))
edges.Add(coord);
coord = new Voxel.Coord { X = x, Y = y, Z = b.Z + b.Depth };
if (coord.Between(ripStart, ripEnd))
edges.Add(coord);
}
}
}
if (edges.Contains(center))
return false;
// Top and bottom
for (int x = ripStart.X; x <= ripEnd.X; x++)
{
for (int z = ripStart.Z; z <= ripEnd.Z; z++)
{
Voxel.Coord c = new Voxel.Coord { X = x, Y = ripStart.Y, Z = z };
Voxel.State s = voxel[c];
if (s != Voxel.States.Empty && !s.Permanent)
edges.Add(c);
c = new Voxel.Coord { X = x, Y = ripEnd.Y, Z = z };
s = voxel[c];
if (s != Voxel.States.Empty && !s.Permanent)
edges.Add(c);
}
}
// Sides
for (int y = ripStart.Y + 1; y <= ripEnd.Y - 1; y++)
{
// Left and right
for (int z = ripStart.Z; z <= ripEnd.Z; z++)
{
Voxel.Coord c = new Voxel.Coord { X = ripStart.X, Y = y, Z = z };
Voxel.State s = voxel[c];
if (s != Voxel.States.Empty && !s.Permanent)
edges.Add(c);
c = new Voxel.Coord { X = ripEnd.X, Y = y, Z = z };
s = voxel[c];
if (s != Voxel.States.Empty && !s.Permanent)
edges.Add(c);
}
// Backward and forward
for (int x = ripStart.X; x <= ripEnd.X; x++)
{
Voxel.Coord c = new Voxel.Coord { X = x, Y = y, Z = ripStart.Z };
Voxel.State s = voxel[c];
if (s != Voxel.States.Empty && !s.Permanent)
edges.Add(c);
c = new Voxel.Coord { X = x, Y = y, Z = ripEnd.Z };
s = voxel[c];
if (s != Voxel.States.Empty && !s.Permanent)
edges.Add(c);
}
}
Propagator p = WorldFactory.Instance.Get<Propagator>();
foreach (Voxel.Coord c in edges)
p.SparksLowPriority(voxel.GetAbsolutePosition(c), Propagator.Spark.Dangerous);
voxel.Empty(edges);
voxel.Regenerate(callback);
return true;
}
return false;
}