public void Update2()
        {
            prevmouse = mouse;
            mouse = xna.Mouse.GetState();
            if ( selected != null && currentTool == EditorTool.Selection )
            {

                gameObjectBindingSource.DataSource = selected;
                if ( selected.m_body != null )
                {

                    if ( selected is Alien )
                    {
                        alienBindingSource.DataSource = selected;
                    }
                    else if ( selected is Trigger )
                    {
                        triggerBindingSource.DataSource = selected;
                        if ( selected is ConditionTriggered )
                        {
                            conditionTriggeredBindingSource.DataSource = selected;
                        }
                    }
                    else if ( selected is TriggerableObject )
                    {
                        triggerableObjectBindingSource.DataSource = selected;
                    }

                    if ( ( selected is PolygonObject ) )
                    {
                        polygonObjectBindingSource.DataSource = selected;
                        if ( selected is FloorTile )
                        {
                            floorTileBindingSource.DataSource = selected;
                        }

                    }

                    // If a new object is selected, create a new selectbox
                    if ( selected != prior_selected )
                    {

                        clearLine();
                        if ( !( selected is PolygonObject ) && !(selected is CompoundPolygonObject) )
                        {
                            if ( selectbox == null )
                            {
                                selectbox = new SelectBox( screen.m_current_world, TestWorld.floor_texture, selected.m_body.Position, selected.m_radius, target:selected);
                                screen.m_current_world.add_queued_object( selectbox );
                            }
                            else
                            {
                                if ( selected.m_radius != 0 )
                                {
                                    selectbox.m_radius = selected.m_radius;
                                }
                                else
                                {
                                    selectbox.m_radius = 1;
                                }
                                selectbox.m_target = selected;
                                selectbox.m_body.Position = selected.m_body.Position;
                            }
                        }
                        else
                        {
                            if ( selectbox == null )
                            {
                                selectbox = new SelectBox( screen.m_current_world, TestWorld.floor_texture,
                                    selected.m_body.Position, 0.25f, target: selected );
                                screen.m_current_world.add_queued_object( selectbox );
                            }
                            else
                            {

                                selectbox.m_radius = 0.25f;
                                //selectbox.m_draw_location = selected.m_body.Position;
                                selectbox.m_target = selected;
                                selectbox.m_body.Position = selected.m_body.Position;
                            }
                        }

                        prior_selected = selected;
                    }

                }

                // If the mouse is clicked and dragged, move the object the same distance
                if ( screen.m_current_world != null && selected.m_body != null && mouse.LeftButton == ButtonState.Pressed )
                {
                    Vector2 shift = screen.m_current_world.get_transform( new Vector2( mouse.X, mouse.Y ) ) - screen.m_current_world.get_transform( new Vector2( prevmouse.X, prevmouse.Y ) );
                    if ( shift != Vector2.Zero && selected != selectbox )
                    {
                        selected.m_body.Position += shift;
                        if ( selectbox != null )
                        {
                            selectbox.m_draw_location = selected.m_body.Position;
                            selectbox.m_body.Position = selected.m_body.Position;
                        }
                        if ( selected is PolygonObject )
                        {
                            PolygonObject wall = (PolygonObject)selected;
                            wall.pos += shift;
                        }
                    }
                }

            }
        }
 /// <summary>
 /// Set all tool squares to "unchecked."
 /// </summary>
 public void ClearToolMenu()
 {
     tool_Insertion.Checked = false;
     tool_Selection.Checked = false;
     if (selectbox != null) {
         selectbox.destroy();
         selectbox = null;
     }
     /* foreach ( Selector s in selector_list )
          {
          if ( s != null )
              {
              s.destroy();
              s.remove_from_world();
              }
          }
      selector_list = new List<Selector>();*/
 }