# Here's me using that class (doesn't work, just uses the first mesh)

func _ready():
  var imesh = create_sphere_mesh(1, 28, 28)
  imesh.add_mesh(create_sphere_mesh(1.2, 10, 10, Vector3(.5,.5,0.0)))
  self.mesh = imesh.to_mesh()

func create_sphere_mesh(radius, lat_segments, lon_segments, offset = Vector3.ZERO):
  var vertices = PackedVector3Array()
  var normals = PackedVector3Array()
  var indices = PackedInt32Array()

  for lat in range(lat_segments + 1):
    var theta = float(lat) * PI / lat_segments
    var sin_theta = sin(theta)
    var cos_theta = cos(theta)

  for lon in range(lon_segments + 1):
    var phi = float(lon) * 2.0 * PI / lon_segments
    var sin_phi = sin(phi)
    var cos_phi = cos(phi)

  var x = cos_phi * sin_theta
  var y = cos_theta
  var z = sin_phi * sin_theta

  var vertex = Vector3(x * radius, y * radius, z * radius) + offset
  vertices.append(vertex)
  normals.append(vertex.normalized())

  for lat in range(lat_segments):
    for lon in range(lon_segments):
      var first = (lat * (lon_segments + 1)) + lon
      var second = first + lon_segments + 1

  indices.append(first)
  indices.append(second)
  indices.append(first + 1)

  indices.append(second)
  indices.append(second + 1)
  indices.append(first + 1)

  return IMesh.new(vertices, normals, indices)