private void RenderManualNodeOverlays(RenderManager.CameraInfo cameraInfo)
        {
            var nodeSimulation = TrafficLightSimulation.GetNodeSimulation(SelectedNodeId);

            for (var i = 0; i < 8; i++)
            {
                var    colorGray = new Color(0.25f, 0.25f, 0.25f, 0.25f);
                ushort segmentId = Singleton <NetManager> .instance.m_nodes.m_buffer[SelectedNodeId].GetSegment(i);

                if (segmentId == 0 ||
                    (nodeSimulation != null && CustomTrafficLights.IsSegmentLight(SelectedNodeId, segmentId)))
                {
                    continue;
                }

                var position = CalculateNodePositionForSegment(Singleton <NetManager> .instance.m_nodes.m_buffer[SelectedNodeId], segmentId);

                var width = _hoveredButton[0] == segmentId ? 11.25f : 10f;
                MainTool.DrawOverlayCircle(cameraInfo, colorGray, position, width, segmentId != _hoveredButton[0]);
            }
        }
        public override void OnToolGUI(Event e)
        {
            var hoveredSegment = false;

            if (SelectedNodeId != 0)
            {
                var nodeSimulation = TrafficLightSimulation.GetNodeSimulation(SelectedNodeId);
                nodeSimulation.housekeeping();

                /*if (Singleton<NetManager>.instance.m_nodes.m_buffer[SelectedNode].CountSegments() == 2) {
                 *      _guiManualTrafficLightsCrosswalk(ref Singleton<NetManager>.instance.m_nodes.m_buffer[SelectedNode]);
                 *      return;
                 * }*/// TODO check

                for (var i = 0; i < 8; i++)
                {
                    var segmentId = Singleton <NetManager> .instance.m_nodes.m_buffer[SelectedNodeId].GetSegment(i);

                    if (segmentId == 0 || nodeSimulation == null ||
                        !CustomTrafficLights.IsSegmentLight(SelectedNodeId, segmentId))
                    {
                        continue;
                    }

                    var position      = CalculateNodePositionForSegment(Singleton <NetManager> .instance.m_nodes.m_buffer[SelectedNodeId], ref Singleton <NetManager> .instance.m_segments.m_buffer[segmentId]);
                    var segmentLights = CustomTrafficLights.GetSegmentLights(SelectedNodeId, segmentId);

                    var screenPos = Camera.main.WorldToScreenPoint(position);
                    screenPos.y = Screen.height - screenPos.y;

                    if (screenPos.z < 0)
                    {
                        continue;
                    }

                    var diff = position - Camera.main.transform.position;
                    var zoom = 1.0f / diff.magnitude * 100f;

                    // original / 2.5
                    var lightWidth  = 41f * zoom;
                    var lightHeight = 97f * zoom;

                    var pedestrianWidth  = 36f * zoom;
                    var pedestrianHeight = 61f * zoom;

                    // SWITCH MODE BUTTON
                    var modeWidth  = 41f * zoom;
                    var modeHeight = 38f * zoom;

                    var guiColor = GUI.color;

                    if (segmentLights.PedestrianLightState != null)
                    {
                        // pedestrian light

                        // SWITCH MANUAL PEDESTRIAN LIGHT BUTTON
                        hoveredSegment = RenderManualPedestrianLightSwitch(zoom, segmentId, screenPos, lightWidth, segmentLights, hoveredSegment);

                        // SWITCH PEDESTRIAN LIGHT
                        guiColor.a = _hoveredButton[0] == segmentId && _hoveredButton[1] == 2 && segmentLights.ManualPedestrianMode ? 0.92f : 0.6f;
                        GUI.color  = guiColor;

                        var myRect3 = new Rect(screenPos.x - pedestrianWidth / 2 - lightWidth + 5f * zoom, screenPos.y - pedestrianHeight / 2 + 22f * zoom, pedestrianWidth, pedestrianHeight);

                        switch (segmentLights.PedestrianLightState)
                        {
                        case RoadBaseAI.TrafficLightState.Green:
                            GUI.DrawTexture(myRect3, TrafficLightToolTextureResources.PedestrianGreenLightTexture2D);
                            break;

                        case RoadBaseAI.TrafficLightState.Red:
                        default:
                            GUI.DrawTexture(myRect3, TrafficLightToolTextureResources.PedestrianRedLightTexture2D);
                            break;
                        }

                        hoveredSegment = IsPedestrianLightHovered(myRect3, segmentId, hoveredSegment, segmentLights);
                    }

                    int lightOffset = -1;
                    foreach (ExtVehicleType vehicleType in segmentLights.VehicleTypes)
                    {
                        ++lightOffset;
                        CustomSegmentLight segmentLight = segmentLights.GetCustomLight(vehicleType);

                        Vector3 offsetScreenPos = screenPos;
                        offsetScreenPos.y -= (lightHeight + 10f * zoom) * lightOffset;

                        SetAlpha(segmentId, -1);

                        var myRect1 = new Rect(offsetScreenPos.x - modeWidth / 2, offsetScreenPos.y - modeHeight / 2 + modeHeight - 7f * zoom, modeWidth, modeHeight);

                        GUI.DrawTexture(myRect1, TrafficLightToolTextureResources.LightModeTexture2D);

                        hoveredSegment = GetHoveredSegment(myRect1, segmentId, hoveredSegment, segmentLight);

                        // COUNTER
                        hoveredSegment = RenderCounter(segmentId, offsetScreenPos, modeWidth, modeHeight, zoom, segmentLights, hoveredSegment);

                        if (lightOffset > 0)
                        {
                            // Info sign
                            var infoWidth  = 56.125f * zoom;
                            var infoHeight = 51.375f * zoom;

                            int numInfos = 0;
                            for (int k = 0; k < TrafficManagerTool.InfoSignsToDisplay.Length; ++k)
                            {
                                if ((TrafficManagerTool.InfoSignsToDisplay[k] & vehicleType) == ExtVehicleType.None)
                                {
                                    continue;
                                }
                                var infoRect = new Rect(offsetScreenPos.x + modeWidth / 2f + 7f * zoom * (float)(numInfos + 1) + infoWidth * (float)numInfos, offsetScreenPos.y - infoHeight / 2f, infoWidth, infoHeight);
                                guiColor.a = 0.6f;
                                GUI.DrawTexture(infoRect, TrafficLightToolTextureResources.VehicleInfoSignTextures[TrafficManagerTool.InfoSignsToDisplay[k]]);
                                ++numInfos;
                            }
                        }

                        SegmentGeometry geometry  = SegmentGeometry.Get(segmentId);
                        bool            startNode = geometry.StartNodeId() == SelectedNodeId;

                        if (geometry.IsOutgoingOneWay(startNode))
                        {
                            continue;
                        }

                        var hasLeftSegment    = geometry.HasLeftSegment(startNode);
                        var hasForwardSegment = geometry.HasStraightSegment(startNode);
                        var hasRightSegment   = geometry.HasRightSegment(startNode);

                        switch (segmentLight.CurrentMode)
                        {
                        case CustomSegmentLight.Mode.Simple:
                            hoveredSegment = SimpleManualSegmentLightMode(segmentId, offsetScreenPos, lightWidth, pedestrianWidth, zoom, lightHeight, segmentLight, hoveredSegment);
                            break;

                        case CustomSegmentLight.Mode.SingleLeft:
                            hoveredSegment = LeftForwardRManualSegmentLightMode(hasLeftSegment, segmentId, offsetScreenPos, lightWidth, pedestrianWidth, zoom, lightHeight, segmentLight, hoveredSegment, hasForwardSegment, hasRightSegment);
                            break;

                        case CustomSegmentLight.Mode.SingleRight:
                            hoveredSegment = RightForwardLSegmentLightMode(segmentId, offsetScreenPos, lightWidth, pedestrianWidth, zoom, lightHeight, hasForwardSegment, hasLeftSegment, segmentLight, hasRightSegment, hoveredSegment);
                            break;

                        default:
                            // left arrow light
                            if (hasLeftSegment)
                            {
                                hoveredSegment = LeftArrowLightMode(segmentId, lightWidth, hasRightSegment, hasForwardSegment, offsetScreenPos, pedestrianWidth, zoom, lightHeight, segmentLight, hoveredSegment);
                            }

                            // forward arrow light
                            if (hasForwardSegment)
                            {
                                hoveredSegment = ForwardArrowLightMode(segmentId, lightWidth, hasRightSegment, offsetScreenPos, pedestrianWidth, zoom, lightHeight, segmentLight, hoveredSegment);
                            }

                            // right arrow light
                            if (hasRightSegment)
                            {
                                hoveredSegment = RightArrowLightMode(segmentId, offsetScreenPos, lightWidth, pedestrianWidth, zoom, lightHeight, segmentLight, hoveredSegment);
                            }
                            break;
                        }
                    }
                }
            }

            if (hoveredSegment)
            {
                return;
            }
            _hoveredButton[0] = 0;
            _hoveredButton[1] = 0;
        }