public PlacedObject3D(Position3D position, Object3D theObject) : base(theObject.Width, theObject.Height, theObject.Depth)
 {
     Position = position;
 }
 public PlacedObject3D(int x, int y, int z, Object3D theObject) : base(theObject.Width, theObject.Height, theObject.Depth)
 {
     Position = new Position3D(x, y, z);
 }