/// <summary>
        /// Action to spawn a planet
        /// </summary>
        /// <param name="coordSpawn">If the planet should be spawned at coordinates instead of direct placement</param>
        private void OnSpawnPlanet(bool coordSpawn = false)
        {
            StringBuilder name = new StringBuilder();

            m_nameBox.GetText(name);
            if (name.ToString().Trim().Length <= 3)
            {
                MyPluginGuiHelper.DisplayError("The name must be at least 4 letters long", "Error");
                return;
            }

            if (coordSpawn)
            {
                MyGuiScreenDialogCoordinate coordinateInput = new MyGuiScreenDialogCoordinate("Planet coordinate");

                coordinateInput.OnConfirmed += delegate(Vector3D coord)
                {
                    MySystemPlanet p = new MySystemPlanet()
                    {
                        CenterPosition = coord,
                        SubtypeId      = ((MyPlanetGeneratorDefinition)m_planetDefList.GetLastSelected().UserData).Id.SubtypeId.ToString(),
                        Generated      = false,
                        DisplayName    = name.ToString().Trim(),
                        Diameter       = m_planetSizeSlider.Value
                    };

                    SpawnPlanet(p, coord);
                };

                MyGuiSandbox.AddScreen(coordinateInput);
                return;
            }

            float          size   = m_planetSizeSlider.Value;
            MySystemPlanet planet = new MySystemPlanet()
            {
                CenterPosition = Vector3D.Zero,
                SubtypeId      = ((MyPlanetGeneratorDefinition)m_planetDefList.GetLastSelected().UserData).Id.SubtypeId.ToString(),
                Generated      = false,
                DisplayName    = name.ToString().Trim(),
                Diameter       = size
            };

            MyPluginItemsClipboard.Static.Activate(planet, SpawnPlanet, size);

            CloseScreenNow();
        }
        public bool CreateSpawnMenu(float usableWidth, MyGuiControlParentTableLayout parentTable, MyPluginAdminMenu adminScreen)
        {
            m_parentScreen            = adminScreen;
            m_offset                  = Vector3D.Zero;
            m_currentSelectedAsteroid = null;

            if (m_fetchedStarSytem == null)
            {
                MyGuiControlRotatingWheel m_loadingWheel = new MyGuiControlRotatingWheel(position: Vector2.Zero);
                m_loadingWheel.OriginAlign = MyGuiDrawAlignEnum.HORISONTAL_CENTER_AND_VERTICAL_CENTER;

                adminScreen.Controls.Add(m_loadingWheel);

                MyStarSystemGenerator.Static.GetStarSystem(delegate(MyObjectBuilder_SystemData starSystem)
                {
                    m_fetchedStarSytem         = starSystem;
                    adminScreen.ShouldRecreate = true;
                });
                return(true);
            }

            MyGuiControlLabel label = new MyGuiControlLabel(null, null, "Parent objects");

            parentTable.AddTableRow(label);

            m_parentObjectListBox = new MyGuiControlListbox();
            m_parentObjectListBox.Add(new MyGuiControlListbox.Item(new System.Text.StringBuilder("System center"), userData: m_fetchedStarSytem.CenterObject));
            m_parentObjectListBox.VisibleRowsCount = 8;
            m_parentObjectListBox.Size             = new Vector2(usableWidth, m_parentObjectListBox.Size.Y);
            m_parentObjectListBox.SelectAllVisible();
            m_parentObjectListBox.ItemsSelected += OnParentItemClicked;

            foreach (var obj in m_fetchedStarSytem.CenterObject.GetAllChildren())
            {
                if (obj.Type == MySystemObjectType.PLANET || obj.Type == MySystemObjectType.MOON)
                {
                    m_parentObjectListBox.Add(new MyGuiControlListbox.Item(new System.Text.StringBuilder(obj.DisplayName), userData: obj));
                }
            }

            parentTable.AddTableRow(m_parentObjectListBox);

            var row = new MyGuiControlParentTableLayout(2, false, Vector2.Zero);

            m_snapToParentCheck                   = new MyGuiControlCheckbox();
            m_snapToParentCheck.IsChecked         = m_snapToParent;
            m_snapToParentCheck.IsCheckedChanged += delegate
            {
                m_snapToParent         = m_snapToParentCheck.IsChecked;
                m_zoomInButton.Enabled = m_snapToParent;
            };

            row.AddTableRow(m_snapToParentCheck, new MyGuiControlLabel(null, null, "Snap camera to parent"));

            row.ApplyRows();

            parentTable.AddTableRow(row);

            parentTable.AddTableSeparator();

            GenerateRingSettingElements(usableWidth, parentTable);

            m_nameBox      = new MyGuiControlTextbox();
            m_nameBox.Size = new Vector2(usableWidth, m_nameBox.Size.Y);

            parentTable.AddTableRow(new MyGuiControlLabel(null, null, "Name"));
            parentTable.AddTableRow(m_nameBox);

            m_zoomInButton = MyPluginGuiHelper.CreateDebugButton(usableWidth, "Zoom to ring", delegate
            {
                if (m_snapToParent)
                {
                    m_parentScreen.CameraLookAt(GenerateAsteroidRing().CenterPosition, new Vector3D(0, 0, (m_radiusSlider.Value + m_widthSlider.Value) * 2000));
                }
            });

            parentTable.AddTableRow(m_zoomInButton);

            m_offsetToCoordButton = MyPluginGuiHelper.CreateDebugButton(usableWidth, "Offset to coordinate", delegate
            {
                var coordMessage          = new MyGuiScreenDialogCoordinate("Enter coordinate to offset the center of the ring from its parent");
                coordMessage.OnConfirmed += delegate(Vector3D coord)
                {
                    m_offset = coord;
                    UpdateRingVisual(GenerateAsteroidRing());
                };
                MyGuiSandbox.AddScreen(coordMessage);
            });

            parentTable.AddTableRow(m_offsetToCoordButton);

            m_spawnRingButton = MyPluginGuiHelper.CreateDebugButton(usableWidth, "Add ring", delegate
            {
                StringBuilder name = new StringBuilder();
                m_nameBox.GetText(name);
                if (name.Length < 4)
                {
                    MyPluginGuiHelper.DisplayError("Name must be at least 4 letters long", "Error");
                    return;
                }

                MySystemAsteroids instance;
                MyAsteroidRingData ring;
                GenerateAsteroidData(out ring, out instance);

                if (ring == null || instance == null)
                {
                    MyPluginGuiHelper.DisplayError("Could not generate asteroid ring. No data found.", "Error");
                    return;
                }

                MyAsteroidRingProvider.Static.AddInstance(instance, ring, delegate(bool success)
                {
                    if (!success)
                    {
                        MyPluginGuiHelper.DisplayError("Ring could not be added, because an object with the same id already exists. This error should not occour, so please try again.", "Error");
                    }
                    else
                    {
                        MyPluginGuiHelper.DisplayMessage("Ring was created successfully.", "Success");
                        m_parentScreen.ForceFetchStarSystem = true;
                        m_parentScreen.ShouldRecreate       = true;
                    }
                });
            });

            parentTable.AddTableRow(m_spawnRingButton);

            return(true);
        }