public static OrbitsRotationGameObject Create(IEntityManager manager) { var geo = GeometryBuilder.BuildRotationOrbits(100, Vector3.Zero); var tag = manager .CreateEntity(new ElementTag("OrbitsRotationGameObject")) .AddComponent(geo) .AddComponent(D3DLineVertexRenderComponent.AsLineStrip()) .AddComponent(new TransformComponent()) .Tag; return(new OrbitsRotationGameObject()); }