private static void LoadDataState()
        {
            Log.Info("Loading State from Config");
            if (_configuration == null)
            {
                Log.Warning("Configuration NULL, Couldn't load save data. Possibly a new game?");
                return;
            }

            // load priority segments
            if (_configuration.PrioritySegments != null)
            {
                Log.Info($"Loading {_configuration.PrioritySegments.Count()} priority segments");
                foreach (var segment in _configuration.PrioritySegments)
                {
                    try {
                        if (segment.Length < 3)
                        {
                            continue;
                        }
#if DEBUG
                        bool debug = segment[0] == 13630;
#endif

                        if ((SegmentEnd.PriorityType)segment[2] == SegmentEnd.PriorityType.None)
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: Not adding 'None' priority segment: {segment[1]} @ node {segment[0]}");
                            }
#endif
                            continue;
                        }

                        if ((Singleton <NetManager> .instance.m_nodes.m_buffer[segment[0]].m_flags & NetNode.Flags.Created) == NetNode.Flags.None)
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: node {segment[0]} is invalid");
                            }
#endif
                            continue;
                        }
                        if ((Singleton <NetManager> .instance.m_segments.m_buffer[segment[1]].m_flags & NetSegment.Flags.Created) == NetSegment.Flags.None)
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: segment {segment[1]} @ node {segment[0]} is invalid");
                            }
#endif
                            continue;
                        }
                        if (TrafficPriority.IsPrioritySegment((ushort)segment[0], (ushort)segment[1]))
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: segment {segment[1]} @ node {segment[0]} is already a priority segment");
                            }
#endif
                            TrafficPriority.GetPrioritySegment((ushort)segment[0], (ushort)segment[1]).Type = (SegmentEnd.PriorityType)segment[2];
                            continue;
                        }
#if DEBUG
                        Log._Debug($"Adding Priority Segment of type: {segment[2].ToString()} to segment {segment[1]} @ node {segment[0]}");
#endif
                        TrafficPriority.AddPrioritySegment((ushort)segment[0], (ushort)segment[1], (SegmentEnd.PriorityType)segment[2]);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from Priority segments: " + e.ToString());
                    }
                }
            }
            else
            {
                Log.Warning("Priority segments data structure undefined!");
            }

            // load vehicle restrictions (warning: has to be done before loading timed lights!)
            if (_configuration.LaneAllowedVehicleTypes != null)
            {
                Log.Info($"Loading lane vehicle restriction data. {_configuration.LaneAllowedVehicleTypes.Count} elements");
                foreach (Configuration.LaneVehicleTypes laneVehicleTypes in _configuration.LaneAllowedVehicleTypes)
                {
                    try {
                        ExtVehicleType baseMask   = VehicleRestrictionsManager.GetBaseMask(laneVehicleTypes.laneId);
                        ExtVehicleType maskedType = laneVehicleTypes.vehicleTypes & baseMask;
                        Log._Debug($"Loading lane vehicle restriction: lane {laneVehicleTypes.laneId} = {laneVehicleTypes.vehicleTypes}, masked = {maskedType}");
                        if (maskedType != baseMask)
                        {
                            Flags.setLaneAllowedVehicleTypes(laneVehicleTypes.laneId, maskedType);
                        }
                        else
                        {
                            Log._Debug($"Masked type does not differ from base type. Ignoring.");
                        }
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from vehicle restrictions: " + e.ToString());
                    }
                }
            }
            else
            {
                Log.Warning("Vehicle restrctions structure undefined!");
            }

            var timedStepCount        = 0;
            var timedStepSegmentCount = 0;

            NetManager netManager = Singleton <NetManager> .instance;

            if (_configuration.TimedLights != null)
            {
                Log.Info($"Loading {_configuration.TimedLights.Count()} timed traffic lights (new method)");

                foreach (Configuration.TimedTrafficLights cnfTimedLights in _configuration.TimedLights)
                {
                    try {
                        if ((Singleton <NetManager> .instance.m_nodes.m_buffer[cnfTimedLights.nodeId].m_flags & NetNode.Flags.Created) == NetNode.Flags.None)
                        {
                            continue;
                        }
                        Flags.setNodeTrafficLight(cnfTimedLights.nodeId, true);

                        Log._Debug($"Adding Timed Node at node {cnfTimedLights.nodeId}");

                        TrafficLightSimulation sim = TrafficLightSimulation.AddNodeToSimulation(cnfTimedLights.nodeId);
                        sim.SetupTimedTrafficLight(cnfTimedLights.nodeGroup);
                        var timedNode = sim.TimedLight;

                        int j = 0;
                        foreach (Configuration.TimedTrafficLightsStep cnfTimedStep in cnfTimedLights.timedSteps)
                        {
                            Log._Debug($"Loading timed step {j} at node {cnfTimedLights.nodeId}");
                            TimedTrafficLightsStep step = timedNode.AddStep(cnfTimedStep.minTime, cnfTimedStep.maxTime, cnfTimedStep.waitFlowBalance);

                            foreach (KeyValuePair <ushort, Configuration.CustomSegmentLights> e in cnfTimedStep.segmentLights)
                            {
                                Log._Debug($"Loading timed step {j}, segment {e.Key} at node {cnfTimedLights.nodeId}");
                                CustomSegmentLights lights = null;
                                if (!step.segmentLights.TryGetValue(e.Key, out lights))
                                {
                                    Log._Debug($"No segment lights found at timed step {j} for segment {e.Key}, node {cnfTimedLights.nodeId}");
                                    continue;
                                }
                                Configuration.CustomSegmentLights cnfLights = e.Value;

                                Log._Debug($"Loading pedestrian light @ seg. {e.Key}, step {j}: {cnfLights.pedestrianLightState} {cnfLights.manualPedestrianMode}");

                                lights.ManualPedestrianMode = cnfLights.manualPedestrianMode;
                                lights.PedestrianLightState = cnfLights.pedestrianLightState;

                                foreach (KeyValuePair <ExtVehicleType, Configuration.CustomSegmentLight> e2 in cnfLights.customLights)
                                {
                                    Log._Debug($"Loading timed step {j}, segment {e.Key}, vehicleType {e2.Key} at node {cnfTimedLights.nodeId}");
                                    CustomSegmentLight light = null;
                                    if (!lights.CustomLights.TryGetValue(e2.Key, out light))
                                    {
                                        Log._Debug($"No segment light found for timed step {j}, segment {e.Key}, vehicleType {e2.Key} at node {cnfTimedLights.nodeId}");
                                        continue;
                                    }
                                    Configuration.CustomSegmentLight cnfLight = e2.Value;

                                    light.CurrentMode = (CustomSegmentLight.Mode)cnfLight.currentMode;
                                    light.LightLeft   = cnfLight.leftLight;
                                    light.LightMain   = cnfLight.mainLight;
                                    light.LightRight  = cnfLight.rightLight;
                                }
                            }
                            ++j;
                        }

                        if (cnfTimedLights.started)
                        {
                            timedNode.Start();
                        }
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from TimedNode (new method): " + e.ToString());
                    }
                }
            }
            else if (_configuration.TimedNodes != null && _configuration.TimedNodeGroups != null)
            {
                Log.Info($"Loading {_configuration.TimedNodes.Count()} timed traffic lights (old method)");
                for (var i = 0; i < _configuration.TimedNodes.Count; i++)
                {
                    try {
                        var nodeid = (ushort)_configuration.TimedNodes[i][0];
                        if ((Singleton <NetManager> .instance.m_nodes.m_buffer[nodeid].m_flags & NetNode.Flags.Created) == NetNode.Flags.None)
                        {
                            continue;
                        }
                        Flags.setNodeTrafficLight(nodeid, true);

                        Log._Debug($"Adding Timed Node {i} at node {nodeid}");

                        var nodeGroup = new List <ushort>();
                        for (var j = 0; j < _configuration.TimedNodeGroups[i].Length; j++)
                        {
                            nodeGroup.Add(_configuration.TimedNodeGroups[i][j]);
                        }

                        TrafficLightSimulation sim = TrafficLightSimulation.AddNodeToSimulation(nodeid);
                        sim.SetupTimedTrafficLight(nodeGroup);
                        var timedNode = sim.TimedLight;

                        timedNode.CurrentStep = _configuration.TimedNodes[i][1];

                        for (var j = 0; j < _configuration.TimedNodes[i][2]; j++)
                        {
                            var cfgstep = _configuration.TimedNodeSteps[timedStepCount];
                            // old (pre 1.3.0):
                            //   cfgstep[0]: time of step
                            //   cfgstep[1]: number of segments
                            // new (post 1.3.0):
                            //   cfgstep[0]: min. time of step
                            //   cfgstep[1]: max. time of step
                            //   cfgstep[2]: number of segments

                            int minTime = 1;
                            int maxTime = 1;
                            //int numSegments = 0;
                            float waitFlowBalance = 1f;

                            if (cfgstep.Length == 2)
                            {
                                minTime = cfgstep[0];
                                maxTime = cfgstep[0];
                                //numSegments = cfgstep[1];
                            }
                            else if (cfgstep.Length >= 3)
                            {
                                minTime = cfgstep[0];
                                maxTime = cfgstep[1];
                                //numSegments = cfgstep[2];
                                if (cfgstep.Length == 4)
                                {
                                    waitFlowBalance = Convert.ToSingle(cfgstep[3]) / 10f;
                                }
                                if (cfgstep.Length == 5)
                                {
                                    waitFlowBalance = Convert.ToSingle(cfgstep[4]) / 1000f;
                                }
                            }

                            Log._Debug($"Adding timed step to node {nodeid}: min/max: {minTime}/{maxTime}, waitFlowBalance: {waitFlowBalance}");

                            timedNode.AddStep(minTime, maxTime, waitFlowBalance);
                            var step = timedNode.Steps[j];

                            for (var s = 0; s < 8; s++)
                            {
                                var segmentId = netManager.m_nodes.m_buffer[nodeid].GetSegment(s);
                                if (segmentId <= 0)
                                {
                                    continue;
                                }

                                bool tooFewSegments = (timedStepSegmentCount >= _configuration.TimedNodeStepSegments.Count);

                                var leftLightState           = tooFewSegments ? RoadBaseAI.TrafficLightState.Red : (RoadBaseAI.TrafficLightState)_configuration.TimedNodeStepSegments[timedStepSegmentCount][0];
                                var mainLightState           = tooFewSegments ? RoadBaseAI.TrafficLightState.Red : (RoadBaseAI.TrafficLightState)_configuration.TimedNodeStepSegments[timedStepSegmentCount][1];
                                var rightLightState          = tooFewSegments ? RoadBaseAI.TrafficLightState.Red : (RoadBaseAI.TrafficLightState)_configuration.TimedNodeStepSegments[timedStepSegmentCount][2];
                                var pedLightState            = tooFewSegments ? RoadBaseAI.TrafficLightState.Red : (RoadBaseAI.TrafficLightState)_configuration.TimedNodeStepSegments[timedStepSegmentCount][3];
                                CustomSegmentLight.Mode?mode = null;
                                if (_configuration.TimedNodeStepSegments[timedStepSegmentCount].Length >= 5)
                                {
                                    mode = (CustomSegmentLight.Mode)_configuration.TimedNodeStepSegments[timedStepSegmentCount][4];
                                }

                                foreach (KeyValuePair <ExtVehicleType, CustomSegmentLight> e in step.segmentLights[segmentId].CustomLights)
                                {
                                    //ManualSegmentLight segmentLight = new ManualSegmentLight(step.NodeId, step.segmentIds[k], mainLightState, leftLightState, rightLightState, pedLightState);
                                    e.Value.LightLeft  = leftLightState;
                                    e.Value.LightMain  = mainLightState;
                                    e.Value.LightRight = rightLightState;
                                    if (mode != null)
                                    {
                                        e.Value.CurrentMode = (CustomSegmentLight.Mode)mode;
                                    }
                                }

                                if (step.segmentLights[segmentId].PedestrianLightState != null)
                                {
                                    step.segmentLights[segmentId].PedestrianLightState = pedLightState;
                                }

                                timedStepSegmentCount++;
                            }
                            timedStepCount++;
                        }

                        if (Convert.ToBoolean(_configuration.TimedNodes[i][3]))
                        {
                            timedNode.Start();
                        }
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from the TimedNodes: " + e.ToString());
                    }
                }
            }
            else
            {
                Log.Warning("Timed traffic lights data structure undefined!");
            }

            var trafficLightDefs = _configuration.NodeTrafficLights.Split(',');

            Log.Info($"Loading junction traffic light data");
            if (trafficLightDefs.Length <= 1)
            {
                // old method
                Log.Info($"Using old method to load traffic light data");

                var saveDataIndex = 0;
                for (var i = 0; i < Singleton <NetManager> .instance.m_nodes.m_buffer.Length; i++)
                {
                    //Log.Message($"Adding NodeTrafficLights iteration: {i1}");
                    try {
                        if ((Singleton <NetManager> .instance.m_nodes.m_buffer[i].Info.m_class.m_service != ItemClass.Service.Road &&
                             Singleton <NetManager> .instance.m_nodes.m_buffer[i].Info.m_class.m_service != ItemClass.Service.PublicTransport) ||
                            (Singleton <NetManager> .instance.m_nodes.m_buffer[i].m_flags & NetNode.Flags.Created) == NetNode.Flags.None)
                        {
                            continue;
                        }

                        // prevent overflow
                        if (_configuration.NodeTrafficLights.Length > saveDataIndex)
                        {
                            var trafficLight = _configuration.NodeTrafficLights[saveDataIndex];
#if DEBUG
                            Log._Debug("Setting traffic light flag for node " + i + ": " + (trafficLight == '1'));
#endif
                            Flags.setNodeTrafficLight((ushort)i, trafficLight == '1');
                        }
                        ++saveDataIndex;
                    } catch (Exception e) {
                        // ignore as it's probably bad save data.
                        Log.Warning("Error setting the NodeTrafficLights (old): " + e.Message);
                    }
                }
            }
            else
            {
                // new method
                foreach (var split in trafficLightDefs.Select(def => def.Split(':')).Where(split => split.Length > 1))
                {
                    try {
                        Log.Info($"Traffic light split data: {split[0]} , {split[1]}");
                        var  nodeId = Convert.ToUInt16(split[0]);
                        uint flag   = Convert.ToUInt16(split[1]);

                        Flags.setNodeTrafficLight(nodeId, flag > 0);
                    } catch (Exception e) {
                        // ignore as it's probably bad save data.
                        Log.Warning("Error setting the NodeTrafficLights (new): " + e.Message);
                    }
                }
            }

            if (_configuration.LaneFlags != null)
            {
                Log.Info($"Loading lane arrow data");
#if DEBUG
                Log._Debug($"LaneFlags: {_configuration.LaneFlags}");
#endif
                var lanes = _configuration.LaneFlags.Split(',');

                if (lanes.Length > 1)
                {
                    foreach (var split in lanes.Select(lane => lane.Split(':')).Where(split => split.Length > 1))
                    {
                        try {
                            Log.Info($"Split Data: {split[0]} , {split[1]}");
                            var  laneId = Convert.ToUInt32(split[0]);
                            uint flags  = Convert.ToUInt32(split[1]);

                            //make sure we don't cause any overflows because of bad save data.
                            if (Singleton <NetManager> .instance.m_lanes.m_buffer.Length <= laneId)
                            {
                                continue;
                            }

                            if (flags > ushort.MaxValue)
                            {
                                continue;
                            }

                            if ((Singleton <NetManager> .instance.m_lanes.m_buffer[laneId].m_flags & (ushort)NetLane.Flags.Created) == 0 || Singleton <NetManager> .instance.m_lanes.m_buffer[laneId].m_segment == 0)
                            {
                                continue;
                            }

                            //Singleton<NetManager>.instance.m_lanes.m_buffer[laneId].m_flags = fixLaneFlags(Singleton<NetManager>.instance.m_lanes.m_buffer[laneId].m_flags);

                            uint laneArrowFlags = flags & Flags.lfr;
                            uint origFlags      = (Singleton <NetManager> .instance.m_lanes.m_buffer[laneId].m_flags & Flags.lfr);
#if DEBUG
                            Log._Debug("Setting flags for lane " + laneId + " to " + flags + " (" + ((Flags.LaneArrows)(laneArrowFlags)).ToString() + ")");
                            if ((origFlags | laneArrowFlags) == origFlags)                               // only load if setting differs from default
                            {
                                Log._Debug("Flags for lane " + laneId + " are original (" + ((NetLane.Flags)(origFlags)).ToString() + ")");
                            }
#endif
                            Flags.setLaneArrowFlags(laneId, (Flags.LaneArrows)(laneArrowFlags));
                        } catch (Exception e) {
                            Log.Error($"Error loading Lane Split data. Length: {split.Length} value: {split}\nError: {e.Message}");
                        }
                    }
                }
            }
            else
            {
                Log.Warning("Lane arrow data structure undefined!");
            }

            // load lane connections
            if (_configuration.LaneConnections != null)
            {
                Log.Info($"Loading {_configuration.LaneConnections.Count()} lane connections");
                foreach (Configuration.LaneConnection conn in _configuration.LaneConnections)
                {
                    try {
                        Log._Debug($"Loading lane connection: lane {conn.lowerLaneId} -> {conn.higherLaneId}");
                        Singleton <LaneConnectionManager> .instance.AddLaneConnection(conn.lowerLaneId, conn.higherLaneId, conn.lowerStartNode);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from lane connection: " + e.ToString());
                    }
                }
            }
            else
            {
                Log.Warning("Lane connection data structure undefined!");
            }

            // load speed limits
            if (_configuration.LaneSpeedLimits != null)
            {
                Log.Info($"Loading lane speed limit data. {_configuration.LaneSpeedLimits.Count} elements");
                foreach (Configuration.LaneSpeedLimit laneSpeedLimit in _configuration.LaneSpeedLimits)
                {
                    try {
                        Log._Debug($"Loading lane speed limit: lane {laneSpeedLimit.laneId} = {laneSpeedLimit.speedLimit}");
                        Flags.setLaneSpeedLimit(laneSpeedLimit.laneId, laneSpeedLimit.speedLimit);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading speed limits: " + e.ToString());
                    }
                }
            }
            else
            {
                Log.Warning("Lane speed limit structure undefined!");
            }

            // Load segment-at-node flags
            if (_configuration.SegmentNodeConfs != null)
            {
                Log.Info($"Loading segment-at-node data. {_configuration.SegmentNodeConfs.Count} elements");
                foreach (Configuration.SegmentNodeConf segNodeConf in _configuration.SegmentNodeConfs)
                {
                    try {
                        if ((Singleton <NetManager> .instance.m_segments.m_buffer[segNodeConf.segmentId].m_flags & NetSegment.Flags.Created) == NetSegment.Flags.None)
                        {
                            continue;
                        }
                        Flags.setSegmentNodeFlags(segNodeConf.segmentId, true, segNodeConf.startNodeFlags);
                        Flags.setSegmentNodeFlags(segNodeConf.segmentId, false, segNodeConf.endNodeFlags);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading segment-at-node config: " + e.ToString());
                    }
                }
            }
            else
            {
                Log.Warning("Segment-at-node structure undefined!");
            }
        }
        private static void SaveTimedTrafficLight(ushort i, Configuration configuration)
        {
            try {
                TrafficLightSimulation sim = TrafficLightSimulation.GetNodeSimulation(i);
                if (sim == null || !sim.IsTimedLight())
                {
                    return;
                }

                Log._Debug($"Going to save timed light at node {i}.");

                var timedNode = sim.TimedLight;
                timedNode.handleNewSegments();

                Configuration.TimedTrafficLights cnfTimedLights = new Configuration.TimedTrafficLights();
                configuration.TimedLights.Add(cnfTimedLights);

                cnfTimedLights.nodeId     = timedNode.NodeId;
                cnfTimedLights.nodeGroup  = timedNode.NodeGroup;
                cnfTimedLights.started    = timedNode.IsStarted();
                cnfTimedLights.timedSteps = new List <Configuration.TimedTrafficLightsStep>();

                for (var j = 0; j < timedNode.NumSteps(); j++)
                {
                    Log._Debug($"Saving timed light step {j} at node {i}.");
                    TimedTrafficLightsStep timedStep = timedNode.Steps[j];
                    Configuration.TimedTrafficLightsStep cnfTimedStep = new Configuration.TimedTrafficLightsStep();
                    cnfTimedLights.timedSteps.Add(cnfTimedStep);

                    cnfTimedStep.minTime         = timedStep.minTime;
                    cnfTimedStep.maxTime         = timedStep.maxTime;
                    cnfTimedStep.waitFlowBalance = timedStep.waitFlowBalance;
                    cnfTimedStep.segmentLights   = new Dictionary <ushort, Configuration.CustomSegmentLights>();
                    foreach (KeyValuePair <ushort, CustomSegmentLights> e in timedStep.segmentLights)
                    {
                        Log._Debug($"Saving timed light step {j}, segment {e.Key} at node {i}.");

                        CustomSegmentLights segLights = e.Value;
                        Configuration.CustomSegmentLights cnfSegLights = new Configuration.CustomSegmentLights();
                        cnfTimedStep.segmentLights.Add(e.Key, cnfSegLights);

                        cnfSegLights.nodeId               = segLights.NodeId;
                        cnfSegLights.segmentId            = segLights.SegmentId;
                        cnfSegLights.customLights         = new Dictionary <ExtVehicleType, Configuration.CustomSegmentLight>();
                        cnfSegLights.pedestrianLightState = segLights.PedestrianLightState;
                        cnfSegLights.manualPedestrianMode = segLights.ManualPedestrianMode;

                        Log._Debug($"Saving pedestrian light @ seg. {e.Key}, step {j}: {cnfSegLights.pedestrianLightState} {cnfSegLights.manualPedestrianMode}");

                        foreach (KeyValuePair <Traffic.ExtVehicleType, CustomSegmentLight> e2 in segLights.CustomLights)
                        {
                            Log._Debug($"Saving timed light step {j}, segment {e.Key}, vehicleType {e2.Key} at node {i}.");

                            CustomSegmentLight segLight = e2.Value;
                            Configuration.CustomSegmentLight cnfSegLight = new Configuration.CustomSegmentLight();
                            cnfSegLights.customLights.Add(e2.Key, cnfSegLight);

                            cnfSegLight.nodeId      = segLight.NodeId;
                            cnfSegLight.segmentId   = segLight.SegmentId;
                            cnfSegLight.currentMode = (int)segLight.CurrentMode;
                            cnfSegLight.leftLight   = segLight.LightLeft;
                            cnfSegLight.mainLight   = segLight.LightMain;
                            cnfSegLight.rightLight  = segLight.LightRight;
                        }
                    }
                }
            } catch (Exception e) {
                Log.Error($"Error adding TimedTrafficLights to save {e.Message}");
            }
        }
        public bool LoadData(List <Configuration.TimedTrafficLights> data)
        {
            bool success = true;

            Log.Info($"Loading {data.Count} timed traffic lights (new method)");

            var nodesWithSimulation = new HashSet <ushort>();

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                nodesWithSimulation.Add(cnfTimedLights.nodeId);
            }

            var masterNodeIdBySlaveNodeId = new Dictionary <ushort, ushort>();
            var nodeGroupByMasterNodeId   = new Dictionary <ushort, List <ushort> >();

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                try {
                    // TODO most of this should not be necessary at all if the classes around TimedTrafficLights class were properly designed
                    // enforce uniqueness of node ids
                    List <ushort> currentNodeGroup = cnfTimedLights.nodeGroup.Distinct().ToList();

                    if (!currentNodeGroup.Contains(cnfTimedLights.nodeId))
                    {
                        currentNodeGroup.Add(cnfTimedLights.nodeId);
                    }

                    // remove any nodes that are not configured to have a simulation
                    currentNodeGroup = new List <ushort>(
                        currentNodeGroup.Intersect(nodesWithSimulation));

                    // remove invalid nodes from the group; find if any of the nodes in the group is already a master node
                    ushort masterNodeId     = 0;
                    int    foundMasterNodes = 0;

                    for (int i = 0; i < currentNodeGroup.Count;)
                    {
                        ushort nodeId = currentNodeGroup[i];

                        if (!Services.NetService.IsNodeValid(currentNodeGroup[i]))
                        {
                            currentNodeGroup.RemoveAt(i);
                            continue;
                        }

                        if (nodeGroupByMasterNodeId.ContainsKey(nodeId))
                        {
                            // this is a known master node
                            if (foundMasterNodes > 0)
                            {
                                // we already found another master node. ignore this node.
                                currentNodeGroup.RemoveAt(i);
                                continue;
                            }

                            // we found the first master node
                            masterNodeId = nodeId;
                            ++foundMasterNodes;
                        }

                        ++i;
                    }

                    if (masterNodeId == 0)
                    {
                        // no master node defined yet, set the first node as a master node
                        masterNodeId = currentNodeGroup[0];
                    }

                    // ensure the master node is the first node in the list (TimedTrafficLights
                    // depends on this at the moment...)
                    currentNodeGroup.Remove(masterNodeId);
                    currentNodeGroup.Insert(0, masterNodeId);

                    // update the saved node group and master-slave info
                    nodeGroupByMasterNodeId[masterNodeId] = currentNodeGroup;

                    foreach (ushort nodeId in currentNodeGroup)
                    {
                        masterNodeIdBySlaveNodeId[nodeId] = masterNodeId;
                    }
                } catch (Exception e) {
                    Log.WarningFormat(
                        "Error building timed traffic light group for TimedNode {0} (NodeGroup: {1}): {2}",
                        cnfTimedLights.nodeId,
                        string.Join(", ", cnfTimedLights.nodeGroup.Select(x => x.ToString()).ToArray()),
                        e);
                    success = false;
                }
            }

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                try {
                    if (!masterNodeIdBySlaveNodeId.ContainsKey(cnfTimedLights.nodeId))
                    {
                        continue;
                    }

                    ushort        masterNodeId = masterNodeIdBySlaveNodeId[cnfTimedLights.nodeId];
                    List <ushort> nodeGroup    = nodeGroupByMasterNodeId[masterNodeId];

#if DEBUGLOAD
                    Log._Debug($"Adding timed light at node {cnfTimedLights.nodeId}. NodeGroup: " +
                               $"{string.Join(", ", nodeGroup.Select(x => x.ToString()).ToArray())}");
#endif
                    SetUpTimedTrafficLight(cnfTimedLights.nodeId, nodeGroup);

                    int j = 0;
                    foreach (Configuration.TimedTrafficLightsStep cnfTimedStep in cnfTimedLights.timedSteps)
                    {
#if DEBUGLOAD
                        Log._Debug($"Loading timed step {j} at node {cnfTimedLights.nodeId}");
#endif
                        ITimedTrafficLightsStep step =
                            TrafficLightSimulations[cnfTimedLights.nodeId].timedLight.AddStep(
                                cnfTimedStep.minTime,
                                cnfTimedStep.maxTime,
                                (StepChangeMetric)cnfTimedStep.changeMetric,
                                cnfTimedStep.waitFlowBalance);

                        foreach (KeyValuePair <ushort, Configuration.CustomSegmentLights> e in
                                 cnfTimedStep.segmentLights)
                        {
                            if (!Services.NetService.IsSegmentValid(e.Key))
                            {
                                continue;
                            }

                            e.Value.nodeId = cnfTimedLights.nodeId;

#if DEBUGLOAD
                            Log._Debug($"Loading timed step {j}, segment {e.Key} at node {cnfTimedLights.nodeId}");
#endif
                            ICustomSegmentLights lights = null;
                            if (!step.CustomSegmentLights.TryGetValue(e.Key, out lights))
                            {
#if DEBUGLOAD
                                Log._Debug($"No segment lights found at timed step {j} for segment " +
                                           $"{e.Key}, node {cnfTimedLights.nodeId}");
#endif
                                continue;
                            }

                            Configuration.CustomSegmentLights cnfLights = e.Value;

#if DEBUGLOAD
                            Log._Debug($"Loading pedestrian light @ seg. {e.Key}, step {j}: " +
                                       $"{cnfLights.pedestrianLightState} {cnfLights.manualPedestrianMode}");
#endif
                            lights.ManualPedestrianMode = cnfLights.manualPedestrianMode;
                            lights.PedestrianLightState = cnfLights.pedestrianLightState;

                            bool first = true; // v1.10.2 transitional code
                            foreach (KeyValuePair <ExtVehicleType, Configuration.CustomSegmentLight> e2
                                     in cnfLights.customLights)
                            {
#if DEBUGLOAD
                                Log._Debug($"Loading timed step {j}, segment {e.Key}, vehicleType " +
                                           $"{e2.Key} at node {cnfTimedLights.nodeId}");
#endif
                                if (!lights.CustomLights.TryGetValue(
                                        LegacyExtVehicleType.ToNew(e2.Key),
                                        out ICustomSegmentLight light))
                                {
#if DEBUGLOAD
                                    Log._Debug($"No segment light found for timed step {j}, segment " +
                                               $"{e.Key}, vehicleType {e2.Key} at node {cnfTimedLights.nodeId}");
#endif
                                    // v1.10.2 transitional code START
                                    if (first)
                                    {
                                        first = false;
                                        if (!lights.CustomLights.TryGetValue(
                                                CustomSegmentLights
                                                .DEFAULT_MAIN_VEHICLETYPE,
                                                out light))
                                        {
#if DEBUGLOAD
                                            Log._Debug($"No segment light found for timed step {j}, " +
                                                       $"segment {e.Key}, DEFAULT vehicleType {CustomSegmentLights.DEFAULT_MAIN_VEHICLETYPE} " +
                                                       $"at node {cnfTimedLights.nodeId}");
#endif
                                            continue;
                                        }
                                    }
                                    else
                                    {
                                        // v1.10.2 transitional code END
                                        continue;

                                        // v1.10.2 transitional code START
                                    }

                                    // v1.10.2 transitional code END
                                }

                                Configuration.CustomSegmentLight cnfLight = e2.Value;

                                light.InternalCurrentMode = (LightMode)cnfLight.currentMode; // TODO improve & remove
                                light.SetStates(
                                    cnfLight.mainLight,
                                    cnfLight.leftLight,
                                    cnfLight.rightLight,
                                    false);
                            }
                        }

                        ++j;
                    }
                } catch (Exception e) {
                    // ignore, as it's probably corrupt save data. it'll be culled on next save
                    Log.Warning($"Error loading data from TimedNode (new method): {e}");
                    success = false;
                }
            }

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                try {
                    ITimedTrafficLights timedNode =
                        TrafficLightSimulations[cnfTimedLights.nodeId].timedLight;

                    timedNode.Housekeeping();
                    if (cnfTimedLights.started)
                    {
                        timedNode.Start(cnfTimedLights.currentStep);
                    }
                } catch (Exception e) {
                    Log.Warning($"Error starting timed light @ {cnfTimedLights.nodeId}: {e}");
                    success = false;
                }
            }

            return(success);
        }
        public List <Configuration.TimedTrafficLights> SaveData(ref bool success)
        {
            var ret = new List <Configuration.TimedTrafficLights>();

            for (uint nodeId = 0; nodeId < NetManager.MAX_NODE_COUNT; ++nodeId)
            {
                try {
                    if (!TrafficLightSimulations[nodeId].IsTimedLight())
                    {
                        continue;
                    }

#if DEBUGSAVE
                    Log._Debug($"Going to save timed light at node {nodeId}.");
#endif
                    ITimedTrafficLights timedNode = TrafficLightSimulations[nodeId].timedLight;
                    timedNode.OnGeometryUpdate();

                    var cnfTimedLights = new Configuration.TimedTrafficLights {
                        nodeId    = timedNode.NodeId,
                        nodeGroup = new List <ushort>(timedNode.NodeGroup),
                        started   = timedNode.IsStarted()
                    };
                    ret.Add(cnfTimedLights);

                    int stepIndex = timedNode.CurrentStep;
                    if (timedNode.IsStarted() &&
                        timedNode.GetStep(timedNode.CurrentStep).IsInEndTransition())
                    {
                        // if in end transition save the next step
                        stepIndex = (stepIndex + 1) % timedNode.NumSteps();
                    }

                    cnfTimedLights.currentStep = stepIndex;
                    cnfTimedLights.timedSteps  = new List <Configuration.TimedTrafficLightsStep>();

                    for (var j = 0; j < timedNode.NumSteps(); j++)
                    {
#if DEBUGSAVE
                        Log._Debug($"Saving timed light step {j} at node {nodeId}.");
#endif
                        ITimedTrafficLightsStep timedStep = timedNode.GetStep(j);
                        var cnfTimedStep = new Configuration.TimedTrafficLightsStep {
                            minTime         = timedStep.MinTime,
                            maxTime         = timedStep.MaxTime,
                            changeMetric    = (int)timedStep.ChangeMetric,
                            waitFlowBalance = timedStep.WaitFlowBalance,
                            segmentLights   = new Dictionary <ushort, Configuration.CustomSegmentLights>()
                        };
                        cnfTimedLights.timedSteps.Add(cnfTimedStep);

                        foreach (KeyValuePair <ushort, ICustomSegmentLights> e
                                 in timedStep.CustomSegmentLights)
                        {
#if DEBUGSAVE
                            Log._Debug($"Saving timed light step {j}, segment {e.Key} at node {nodeId}.");
#endif

                            ICustomSegmentLights segLights = e.Value;
                            ushort lightsNodeId            = segLights.NodeId;

                            var cnfSegLights = new Configuration.CustomSegmentLights {
                                nodeId               = lightsNodeId,        // TODO not needed
                                segmentId            = segLights.SegmentId, // TODO not needed
                                customLights         = new Dictionary <ExtVehicleType, Configuration.CustomSegmentLight>(),
                                pedestrianLightState = segLights.PedestrianLightState,
                                manualPedestrianMode = segLights.ManualPedestrianMode
                            };

                            if (lightsNodeId == 0 || lightsNodeId != timedNode.NodeId)
                            {
                                Log.Warning(
                                    "Inconsistency detected: Timed traffic light @ node " +
                                    $"{timedNode.NodeId} contains custom traffic lights for the invalid " +
                                    $"segment ({segLights.SegmentId}) at step {j}: nId={lightsNodeId}");
                                continue;
                            }

                            cnfTimedStep.segmentLights.Add(e.Key, cnfSegLights);

#if DEBUGSAVE
                            Log._Debug($"Saving pedestrian light @ seg. {e.Key}, step {j}: " +
                                       $"{cnfSegLights.pedestrianLightState} {cnfSegLights.manualPedestrianMode}");
#endif

                            foreach (KeyValuePair <API.Traffic.Enums.ExtVehicleType,
                                                   ICustomSegmentLight> e2 in segLights.CustomLights)
                            {
#if DEBUGSAVE
                                Log._Debug($"Saving timed light step {j}, segment {e.Key}, vehicleType " +
                                           $"{e2.Key} at node {nodeId}.");
#endif
                                ICustomSegmentLight segLight = e2.Value;
                                var cnfSegLight = new Configuration.CustomSegmentLight {
                                    nodeId      = lightsNodeId,        // TODO not needed
                                    segmentId   = segLights.SegmentId, // TODO not needed
                                    currentMode = (int)segLight.CurrentMode,
                                    leftLight   = segLight.LightLeft,
                                    mainLight   = segLight.LightMain,
                                    rightLight  = segLight.LightRight
                                };

                                cnfSegLights.customLights.Add(
                                    LegacyExtVehicleType.ToOld(e2.Key),
                                    cnfSegLight);
                            }
                        }
                    }
                }
                catch (Exception e) {
                    Log.Error(
                        $"Exception occurred while saving timed traffic light @ {nodeId}: {e}");
                    success = false;
                }
            }

            return(ret);
        }
        public List <Configuration.TimedTrafficLights> SaveData(ref bool success)
        {
            List <Configuration.TimedTrafficLights> ret = new List <Configuration.TimedTrafficLights>();

            for (uint nodeId = 0; nodeId < NetManager.MAX_NODE_COUNT; ++nodeId)
            {
                try {
                    ITrafficLightSimulation sim = GetNodeSimulation((ushort)nodeId);
                    if (sim == null || !sim.IsTimedLight())
                    {
                        continue;
                    }

                    Log._Debug($"Going to save timed light at node {nodeId}.");

                    var timedNode = sim.TimedLight;
                    timedNode.OnGeometryUpdate();

                    Configuration.TimedTrafficLights cnfTimedLights = new Configuration.TimedTrafficLights();
                    ret.Add(cnfTimedLights);

                    cnfTimedLights.nodeId    = timedNode.NodeId;
                    cnfTimedLights.nodeGroup = new List <ushort>(timedNode.NodeGroup);
                    cnfTimedLights.started   = timedNode.IsStarted();
                    int stepIndex = timedNode.CurrentStep;
                    if (timedNode.IsStarted() && timedNode.GetStep(timedNode.CurrentStep).IsInEndTransition())
                    {
                        // if in end transition save the next step
                        stepIndex = (stepIndex + 1) % timedNode.NumSteps();
                    }
                    cnfTimedLights.currentStep = stepIndex;
                    cnfTimedLights.timedSteps  = new List <Configuration.TimedTrafficLightsStep>();

                    for (var j = 0; j < timedNode.NumSteps(); j++)
                    {
                        Log._Debug($"Saving timed light step {j} at node {nodeId}.");
                        ITimedTrafficLightsStep timedStep = timedNode.GetStep(j);
                        Configuration.TimedTrafficLightsStep cnfTimedStep = new Configuration.TimedTrafficLightsStep();
                        cnfTimedLights.timedSteps.Add(cnfTimedStep);

                        cnfTimedStep.minTime         = timedStep.MinTime;
                        cnfTimedStep.maxTime         = timedStep.MaxTime;
                        cnfTimedStep.changeMetric    = (int)timedStep.ChangeMetric;
                        cnfTimedStep.waitFlowBalance = timedStep.WaitFlowBalance;
                        cnfTimedStep.segmentLights   = new Dictionary <ushort, Configuration.CustomSegmentLights>();
                        foreach (KeyValuePair <ushort, ICustomSegmentLights> e in timedStep.CustomSegmentLights)
                        {
                            Log._Debug($"Saving timed light step {j}, segment {e.Key} at node {nodeId}.");

                            ICustomSegmentLights segLights = e.Value;
                            Configuration.CustomSegmentLights cnfSegLights = new Configuration.CustomSegmentLights();

                            ushort lightsNodeId = segLights.NodeId;
                            if (lightsNodeId == 0 || lightsNodeId != timedNode.NodeId)
                            {
                                Log.Warning($"Inconsistency detected: Timed traffic light @ node {timedNode.NodeId} contains custom traffic lights for the invalid segment ({segLights.SegmentId}) at step {j}: nId={lightsNodeId}");
                                continue;
                            }

                            cnfSegLights.nodeId               = lightsNodeId;               // TODO not needed
                            cnfSegLights.segmentId            = segLights.SegmentId;        // TODO not needed
                            cnfSegLights.customLights         = new Dictionary <ExtVehicleType, Configuration.CustomSegmentLight>();
                            cnfSegLights.pedestrianLightState = segLights.PedestrianLightState;
                            cnfSegLights.manualPedestrianMode = segLights.ManualPedestrianMode;

                            cnfTimedStep.segmentLights.Add(e.Key, cnfSegLights);

                            Log._Debug($"Saving pedestrian light @ seg. {e.Key}, step {j}: {cnfSegLights.pedestrianLightState} {cnfSegLights.manualPedestrianMode}");

                            foreach (KeyValuePair <ExtVehicleType, ICustomSegmentLight> e2 in segLights.CustomLights)
                            {
                                Log._Debug($"Saving timed light step {j}, segment {e.Key}, vehicleType {e2.Key} at node {nodeId}.");

                                ICustomSegmentLight segLight = e2.Value;
                                Configuration.CustomSegmentLight cnfSegLight = new Configuration.CustomSegmentLight();
                                cnfSegLights.customLights.Add(e2.Key, cnfSegLight);

                                cnfSegLight.nodeId      = lightsNodeId;                            // TODO not needed
                                cnfSegLight.segmentId   = segLights.SegmentId;                     // TODO not needed
                                cnfSegLight.currentMode = (int)segLight.CurrentMode;
                                cnfSegLight.leftLight   = segLight.LightLeft;
                                cnfSegLight.mainLight   = segLight.LightMain;
                                cnfSegLight.rightLight  = segLight.LightRight;
                            }
                        }
                    }
                } catch (Exception e) {
                    Log.Error($"Exception occurred while saving timed traffic light @ {nodeId}: {e.ToString()}");
                    success = false;
                }
            }
            return(ret);
        }
        private static void LoadDataState(out bool error)
        {
            error = false;

            Log.Info("Loading State from Config");
            if (_configuration == null)
            {
                Log.Warning("Configuration NULL, Couldn't load save data. Possibly a new game?");
                return;
            }

            TrafficPriorityManager prioMan = TrafficPriorityManager.Instance();

            // load priority segments
            if (_configuration.PrioritySegments != null)
            {
                Log.Info($"Loading {_configuration.PrioritySegments.Count()} priority segments");
                foreach (var segment in _configuration.PrioritySegments)
                {
                    try {
                        if (segment.Length < 3)
                        {
                            continue;
                        }
#if DEBUG
                        bool debug = segment[0] == 13630;
#endif

                        if ((SegmentEnd.PriorityType)segment[2] == SegmentEnd.PriorityType.None)
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: Not adding 'None' priority segment: {segment[1]} @ node {segment[0]}");
                            }
#endif
                            continue;
                        }

                        if (!NetUtil.IsNodeValid((ushort)segment[0]))
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: node {segment[0]} is invalid");
                            }
#endif
                            continue;
                        }
                        if (!NetUtil.IsSegmentValid((ushort)segment[1]))
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: segment {segment[1]} @ node {segment[0]} is invalid");
                            }
#endif
                            continue;
                        }
                        if (prioMan.IsPrioritySegment((ushort)segment[0], (ushort)segment[1]))
                        {
#if DEBUG
                            if (debug)
                            {
                                Log._Debug($"Loading priority segment: segment {segment[1]} @ node {segment[0]} is already a priority segment");
                            }
#endif
                            prioMan.GetPrioritySegment((ushort)segment[0], (ushort)segment[1]).Type = (SegmentEnd.PriorityType)segment[2];
                            continue;
                        }
#if DEBUG
                        Log._Debug($"Adding Priority Segment of type: {segment[2].ToString()} to segment {segment[1]} @ node {segment[0]}");
#endif
                        prioMan.AddPrioritySegment((ushort)segment[0], (ushort)segment[1], (SegmentEnd.PriorityType)segment[2]);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from Priority segments: " + e.ToString());
                        error = true;
                    }
                }
            }
            else
            {
                Log.Warning("Priority segments data structure undefined!");
            }

            // load vehicle restrictions (warning: has to be done before loading timed lights!)
            if (_configuration.LaneAllowedVehicleTypes != null)
            {
                Log.Info($"Loading lane vehicle restriction data. {_configuration.LaneAllowedVehicleTypes.Count} elements");
                foreach (Configuration.LaneVehicleTypes laneVehicleTypes in _configuration.LaneAllowedVehicleTypes)
                {
                    try {
                        ExtVehicleType baseMask   = VehicleRestrictionsManager.Instance().GetBaseMask(laneVehicleTypes.laneId);
                        ExtVehicleType maskedType = laneVehicleTypes.vehicleTypes & baseMask;
                        Log._Debug($"Loading lane vehicle restriction: lane {laneVehicleTypes.laneId} = {laneVehicleTypes.vehicleTypes}, masked = {maskedType}");
                        if (maskedType != baseMask)
                        {
                            Flags.setLaneAllowedVehicleTypes(laneVehicleTypes.laneId, maskedType);
                        }
                        else
                        {
                            Log._Debug($"Masked type does not differ from base type. Ignoring.");
                        }
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from vehicle restrictions: " + e.ToString());
                        error = true;
                    }
                }
            }
            else
            {
                Log.Warning("Vehicle restrctions structure undefined!");
            }

            NetManager netManager = Singleton <NetManager> .instance;
            TrafficLightSimulationManager tlsMan = TrafficLightSimulationManager.Instance();

            if (_configuration.TimedLights != null)
            {
                Log.Info($"Loading {_configuration.TimedLights.Count()} timed traffic lights (new method)");

                foreach (Configuration.TimedTrafficLights cnfTimedLights in _configuration.TimedLights)
                {
                    try {
                        if (!NetUtil.IsNodeValid(cnfTimedLights.nodeId))
                        {
                            continue;
                        }
                        Flags.setNodeTrafficLight(cnfTimedLights.nodeId, true);

                        Log._Debug($"Adding Timed Node at node {cnfTimedLights.nodeId}");

                        TrafficLightSimulation sim = tlsMan.AddNodeToSimulation(cnfTimedLights.nodeId);
                        sim.SetupTimedTrafficLight(cnfTimedLights.nodeGroup);
                        var timedNode = sim.TimedLight;

                        int j = 0;
                        foreach (Configuration.TimedTrafficLightsStep cnfTimedStep in cnfTimedLights.timedSteps)
                        {
                            Log._Debug($"Loading timed step {j} at node {cnfTimedLights.nodeId}");
                            TimedTrafficLightsStep step = timedNode.AddStep(cnfTimedStep.minTime, cnfTimedStep.maxTime, cnfTimedStep.waitFlowBalance);

                            foreach (KeyValuePair <ushort, Configuration.CustomSegmentLights> e in cnfTimedStep.segmentLights)
                            {
                                Log._Debug($"Loading timed step {j}, segment {e.Key} at node {cnfTimedLights.nodeId}");
                                CustomSegmentLights lights = null;
                                if (!step.segmentLights.TryGetValue(e.Key, out lights))
                                {
                                    Log._Debug($"No segment lights found at timed step {j} for segment {e.Key}, node {cnfTimedLights.nodeId}");
                                    continue;
                                }
                                Configuration.CustomSegmentLights cnfLights = e.Value;

                                Log._Debug($"Loading pedestrian light @ seg. {e.Key}, step {j}: {cnfLights.pedestrianLightState} {cnfLights.manualPedestrianMode}");

                                lights.ManualPedestrianMode = cnfLights.manualPedestrianMode;
                                lights.PedestrianLightState = cnfLights.pedestrianLightState;

                                foreach (KeyValuePair <ExtVehicleType, Configuration.CustomSegmentLight> e2 in cnfLights.customLights)
                                {
                                    Log._Debug($"Loading timed step {j}, segment {e.Key}, vehicleType {e2.Key} at node {cnfTimedLights.nodeId}");
                                    CustomSegmentLight light = null;
                                    if (!lights.CustomLights.TryGetValue(e2.Key, out light))
                                    {
                                        Log._Debug($"No segment light found for timed step {j}, segment {e.Key}, vehicleType {e2.Key} at node {cnfTimedLights.nodeId}");
                                        continue;
                                    }
                                    Configuration.CustomSegmentLight cnfLight = e2.Value;

                                    light.CurrentMode = (CustomSegmentLight.Mode)cnfLight.currentMode;
                                    light.LightLeft   = cnfLight.leftLight;
                                    light.LightMain   = cnfLight.mainLight;
                                    light.LightRight  = cnfLight.rightLight;
                                }
                            }
                            ++j;
                        }

                        if (cnfTimedLights.started)
                        {
                            timedNode.Start();
                        }
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading data from TimedNode (new method): " + e.ToString());
                        error = true;
                    }
                }
            }
            else
            {
                Log.Warning("Timed traffic lights data structure undefined!");
            }

            if (_configuration.NodeTrafficLights != null)
            {
                var trafficLightDefs = _configuration.NodeTrafficLights.Split(',');

                Log.Info($"Loading junction traffic light data");

                // new method
                foreach (var split in trafficLightDefs.Select(def => def.Split(':')).Where(split => split.Length > 1))
                {
                    try {
                        Log._Debug($"Traffic light split data: {split[0]} , {split[1]}");
                        var  nodeId = Convert.ToUInt16(split[0]);
                        uint flag   = Convert.ToUInt16(split[1]);

                        Flags.setNodeTrafficLight(nodeId, flag > 0);
                    } catch (Exception e) {
                        // ignore as it's probably bad save data.
                        Log.Error($"Error setting the NodeTrafficLights: " + e.ToString());
                        error = true;
                    }
                }
            }
            else
            {
                Log.Warning("Junction traffic lights data structure undefined!");
            }

            if (_configuration.LaneFlags != null)
            {
                Log.Info($"Loading lane arrow data");
#if DEBUG
                Log._Debug($"LaneFlags: {_configuration.LaneFlags}");
#endif
                var lanes = _configuration.LaneFlags.Split(',');

                if (lanes.Length > 1)
                {
                    foreach (var split in lanes.Select(lane => lane.Split(':')).Where(split => split.Length > 1))
                    {
                        try {
                            Log._Debug($"Split Data: {split[0]} , {split[1]}");
                            var  laneId = Convert.ToUInt32(split[0]);
                            uint flags  = Convert.ToUInt32(split[1]);

                            //make sure we don't cause any overflows because of bad save data.
                            if (Singleton <NetManager> .instance.m_lanes.m_buffer.Length <= laneId)
                            {
                                continue;
                            }

                            if (flags > ushort.MaxValue)
                            {
                                continue;
                            }

                            if (!NetUtil.IsLaneValid(laneId))
                            {
                                continue;
                            }

                            //Singleton<NetManager>.instance.m_lanes.m_buffer[laneId].m_flags = fixLaneFlags(Singleton<NetManager>.instance.m_lanes.m_buffer[laneId].m_flags);

                            uint laneArrowFlags = flags & Flags.lfr;
                            uint origFlags      = (Singleton <NetManager> .instance.m_lanes.m_buffer[laneId].m_flags & Flags.lfr);
#if DEBUG
                            Log._Debug("Setting flags for lane " + laneId + " to " + flags + " (" + ((Flags.LaneArrows)(laneArrowFlags)).ToString() + ")");
                            if ((origFlags | laneArrowFlags) == origFlags)                               // only load if setting differs from default
                            {
                                Log._Debug("Flags for lane " + laneId + " are original (" + ((NetLane.Flags)(origFlags)).ToString() + ")");
                            }
#endif
                            Flags.setLaneArrowFlags(laneId, (Flags.LaneArrows)(laneArrowFlags));
                        } catch (Exception e) {
                            Log.Error($"Error loading Lane Split data. Length: {split.Length} value: {split}\nError: {e.ToString()}");
                            error = true;
                        }
                    }
                }
            }
            else
            {
                Log.Warning("Lane arrow data structure undefined!");
            }

            // load lane connections
            if (_configuration.LaneConnections != null)
            {
                Log.Info($"Loading {_configuration.LaneConnections.Count()} lane connections");
                foreach (Configuration.LaneConnection conn in _configuration.LaneConnections)
                {
                    try {
                        Log._Debug($"Loading lane connection: lane {conn.lowerLaneId} -> {conn.higherLaneId}");
                        LaneConnectionManager.Instance().AddLaneConnection(conn.lowerLaneId, conn.higherLaneId, conn.lowerStartNode);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Error("Error loading data from lane connection: " + e.ToString());
                        error = true;
                    }
                }
            }
            else
            {
                Log.Warning("Lane connection data structure undefined!");
            }

            // load speed limits
            if (_configuration.LaneSpeedLimits != null)
            {
                Log.Info($"Loading lane speed limit data. {_configuration.LaneSpeedLimits.Count} elements");
                foreach (Configuration.LaneSpeedLimit laneSpeedLimit in _configuration.LaneSpeedLimits)
                {
                    try {
                        Log._Debug($"Loading lane speed limit: lane {laneSpeedLimit.laneId} = {laneSpeedLimit.speedLimit}");
                        Flags.setLaneSpeedLimit(laneSpeedLimit.laneId, laneSpeedLimit.speedLimit);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading speed limits: " + e.ToString());
                        error = true;
                    }
                }
            }
            else
            {
                Log.Warning("Lane speed limit structure undefined!");
            }

            // Load segment-at-node flags
            if (_configuration.SegmentNodeConfs != null)
            {
                Log.Info($"Loading segment-at-node data. {_configuration.SegmentNodeConfs.Count} elements");
                foreach (Configuration.SegmentNodeConf segNodeConf in _configuration.SegmentNodeConfs)
                {
                    try {
                        if (!NetUtil.IsSegmentValid(segNodeConf.segmentId))
                        {
                            continue;
                        }
                        Flags.setSegmentNodeFlags(segNodeConf.segmentId, true, segNodeConf.startNodeFlags);
                        Flags.setSegmentNodeFlags(segNodeConf.segmentId, false, segNodeConf.endNodeFlags);
                    } catch (Exception e) {
                        // ignore, as it's probably corrupt save data. it'll be culled on next save
                        Log.Warning("Error loading segment-at-node config: " + e.ToString());
                        error = true;
                    }
                }
            }
            else
            {
                Log.Warning("Segment-at-node structure undefined!");
            }
        }
		private static void SaveTimedTrafficLight(ushort i, Configuration configuration) {
			try {
				TrafficLightSimulation sim = TrafficLightSimulation.GetNodeSimulation(i);
				if (sim == null || !sim.IsTimedLight())
					return;

				var timedNode = sim.TimedLight;
				timedNode.handleNewSegments();

				Configuration.TimedTrafficLights cnfTimedLights = new Configuration.TimedTrafficLights();
				configuration.TimedLights.Add(cnfTimedLights);

				cnfTimedLights.nodeId = timedNode.NodeId;
				cnfTimedLights.nodeGroup = timedNode.NodeGroup;
				cnfTimedLights.started = timedNode.IsStarted();
				cnfTimedLights.timedSteps = new List<Configuration.TimedTrafficLightsStep>();

				for (var j = 0; j < timedNode.NumSteps(); j++) {
					TimedTrafficLightsStep timedStep = timedNode.Steps[j];
					Configuration.TimedTrafficLightsStep cnfTimedStep = new Configuration.TimedTrafficLightsStep();
					cnfTimedLights.timedSteps.Add(cnfTimedStep);

					cnfTimedStep.minTime = timedStep.minTime;
					cnfTimedStep.maxTime = timedStep.maxTime;
					cnfTimedStep.waitFlowBalance = timedStep.waitFlowBalance;
					cnfTimedStep.segmentLights = new Dictionary<ushort, Configuration.CustomSegmentLights>();
					foreach (KeyValuePair<ushort, CustomSegmentLights> e in timedStep.segmentLights) {
						CustomSegmentLights segLights = e.Value;
						Configuration.CustomSegmentLights cnfSegLights = new Configuration.CustomSegmentLights();
						cnfTimedStep.segmentLights.Add(e.Key, cnfSegLights);

						cnfSegLights.nodeId = segLights.NodeId;
						cnfSegLights.segmentId = segLights.SegmentId;
						cnfSegLights.customLights = new Dictionary<ExtVehicleType, Configuration.CustomSegmentLight>();
						cnfSegLights.pedestrianLightState = segLights.PedestrianLightState;
						cnfSegLights.manualPedestrianMode = segLights.ManualPedestrianMode;

						Log._Debug($"Saving pedestrian light @ seg. {e.Key}, step {j}: {cnfSegLights.pedestrianLightState} {cnfSegLights.manualPedestrianMode}");

						foreach (KeyValuePair<Traffic.ExtVehicleType, CustomSegmentLight> e2 in segLights.CustomLights) {
							CustomSegmentLight segLight = e2.Value;
							Configuration.CustomSegmentLight cnfSegLight = new Configuration.CustomSegmentLight();
							cnfSegLights.customLights.Add(e2.Key, cnfSegLight);

							cnfSegLight.nodeId = segLight.NodeId;
							cnfSegLight.segmentId = segLight.SegmentId;
							cnfSegLight.currentMode = (int)segLight.CurrentMode;
							cnfSegLight.leftLight = segLight.LightLeft;
							cnfSegLight.mainLight = segLight.LightMain;
							cnfSegLight.rightLight = segLight.LightRight;
						}
					}
				}
			} catch (Exception e) {
				Log.Error($"Error adding TimedTrafficLights to save {e.Message}");
			}
		}
        public List <Configuration.TimedTrafficLights> SaveData(ref bool success)
        {
            List <Configuration.TimedTrafficLights> ret = new List <Configuration.TimedTrafficLights>();

            for (ushort nodeId = 0; nodeId < NetManager.MAX_NODE_COUNT; ++nodeId)
            {
                try {
                    TrafficLightSimulation sim = GetNodeSimulation(nodeId);
                    if (sim == null || !sim.IsTimedLight())
                    {
                        continue;
                    }

                    Log._Debug($"Going to save timed light at node {nodeId}.");

                    var timedNode = sim.TimedLight;
                    timedNode.handleNewSegments();

                    Configuration.TimedTrafficLights cnfTimedLights = new Configuration.TimedTrafficLights();
                    ret.Add(cnfTimedLights);

                    cnfTimedLights.nodeId     = timedNode.NodeId;
                    cnfTimedLights.nodeGroup  = timedNode.NodeGroup;
                    cnfTimedLights.started    = timedNode.IsStarted();
                    cnfTimedLights.timedSteps = new List <Configuration.TimedTrafficLightsStep>();

                    for (var j = 0; j < timedNode.NumSteps(); j++)
                    {
                        Log._Debug($"Saving timed light step {j} at node {nodeId}.");
                        TimedTrafficLightsStep timedStep = timedNode.Steps[j];
                        Configuration.TimedTrafficLightsStep cnfTimedStep = new Configuration.TimedTrafficLightsStep();
                        cnfTimedLights.timedSteps.Add(cnfTimedStep);

                        cnfTimedStep.minTime         = timedStep.minTime;
                        cnfTimedStep.maxTime         = timedStep.maxTime;
                        cnfTimedStep.waitFlowBalance = timedStep.waitFlowBalance;
                        cnfTimedStep.segmentLights   = new Dictionary <ushort, Configuration.CustomSegmentLights>();
                        foreach (KeyValuePair <ushort, CustomSegmentLights> e in timedStep.segmentLights)
                        {
                            Log._Debug($"Saving timed light step {j}, segment {e.Key} at node {nodeId}.");

                            CustomSegmentLights segLights = e.Value;
                            Configuration.CustomSegmentLights cnfSegLights = new Configuration.CustomSegmentLights();
                            cnfTimedStep.segmentLights.Add(e.Key, cnfSegLights);

                            cnfSegLights.nodeId               = segLights.NodeId;
                            cnfSegLights.segmentId            = segLights.SegmentId;
                            cnfSegLights.customLights         = new Dictionary <ExtVehicleType, Configuration.CustomSegmentLight>();
                            cnfSegLights.pedestrianLightState = segLights.PedestrianLightState;
                            cnfSegLights.manualPedestrianMode = segLights.ManualPedestrianMode;

                            Log._Debug($"Saving pedestrian light @ seg. {e.Key}, step {j}: {cnfSegLights.pedestrianLightState} {cnfSegLights.manualPedestrianMode}");

                            foreach (KeyValuePair <ExtVehicleType, CustomSegmentLight> e2 in segLights.CustomLights)
                            {
                                Log._Debug($"Saving timed light step {j}, segment {e.Key}, vehicleType {e2.Key} at node {nodeId}.");

                                CustomSegmentLight segLight = e2.Value;
                                Configuration.CustomSegmentLight cnfSegLight = new Configuration.CustomSegmentLight();
                                cnfSegLights.customLights.Add(e2.Key, cnfSegLight);

                                cnfSegLight.nodeId      = segLight.NodeId;
                                cnfSegLight.segmentId   = segLight.SegmentId;
                                cnfSegLight.currentMode = (int)segLight.CurrentMode;
                                cnfSegLight.leftLight   = segLight.LightLeft;
                                cnfSegLight.mainLight   = segLight.LightMain;
                                cnfSegLight.rightLight  = segLight.LightRight;
                            }
                        }
                    }
                } catch (Exception e) {
                    Log.Error($"Exception occurred while saving timed traffic light @ {nodeId}: {e.ToString()}");
                    success = false;
                }
            }
            return(ret);
        }
        public bool LoadData(List <Configuration.TimedTrafficLights> data)
        {
            bool success = true;

            Log.Info($"Loading {data.Count} timed traffic lights (new method)");

            TrafficLightManager tlm = TrafficLightManager.Instance;

            HashSet <ushort> nodesWithSimulation = new HashSet <ushort>();

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                nodesWithSimulation.Add(cnfTimedLights.nodeId);
            }

            Dictionary <ushort, ushort>         masterNodeIdBySlaveNodeId = new Dictionary <ushort, ushort>();
            Dictionary <ushort, List <ushort> > nodeGroupByMasterNodeId   = new Dictionary <ushort, List <ushort> >();

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                try {
                    // TODO most of this should not be necessary at all if the classes around TimedTrafficLights class were properly designed
                    List <ushort> currentNodeGroup = cnfTimedLights.nodeGroup.Distinct().ToList();                    // enforce uniqueness of node ids
                    if (!currentNodeGroup.Contains(cnfTimedLights.nodeId))
                    {
                        currentNodeGroup.Add(cnfTimedLights.nodeId);
                    }
                    // remove any nodes that are not configured to have a simulation
                    currentNodeGroup = new List <ushort>(currentNodeGroup.Intersect(nodesWithSimulation));

                    // remove invalid nodes from the group; find if any of the nodes in the group is already a master node
                    ushort masterNodeId     = 0;
                    int    foundMasterNodes = 0;
                    for (int i = 0; i < currentNodeGroup.Count;)
                    {
                        ushort nodeId = currentNodeGroup[i];
                        if (!NetUtil.IsNodeValid(currentNodeGroup[i]))
                        {
                            currentNodeGroup.RemoveAt(i);
                            continue;
                        }
                        else if (nodeGroupByMasterNodeId.ContainsKey(nodeId))
                        {
                            // this is a known master node
                            if (foundMasterNodes > 0)
                            {
                                // we already found another master node. ignore this node.
                                currentNodeGroup.RemoveAt(i);
                                continue;
                            }
                            // we found the first master node
                            masterNodeId = nodeId;
                            ++foundMasterNodes;
                        }
                        ++i;
                    }

                    if (masterNodeId == 0)
                    {
                        // no master node defined yet, set the first node as a master node
                        masterNodeId = currentNodeGroup[0];
                    }

                    // ensure the master node is the first node in the list (TimedTrafficLights depends on this at the moment...)
                    currentNodeGroup.Remove(masterNodeId);
                    currentNodeGroup.Insert(0, masterNodeId);

                    // update the saved node group and master-slave info
                    nodeGroupByMasterNodeId[masterNodeId] = currentNodeGroup;
                    foreach (ushort nodeId in currentNodeGroup)
                    {
                        masterNodeIdBySlaveNodeId[nodeId] = masterNodeId;
                    }
                } catch (Exception e) {
                    Log.Warning($"Error building timed traffic light group for TimedNode {cnfTimedLights.nodeId} (NodeGroup: {string.Join(", ", cnfTimedLights.nodeGroup.Select(x => x.ToString()).ToArray())}): " + e.ToString());
                    success = false;
                }
            }

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                try {
                    if (!masterNodeIdBySlaveNodeId.ContainsKey(cnfTimedLights.nodeId))
                    {
                        continue;
                    }
                    ushort        masterNodeId = masterNodeIdBySlaveNodeId[cnfTimedLights.nodeId];
                    List <ushort> nodeGroup    = nodeGroupByMasterNodeId[masterNodeId];

                    Log._Debug($"Adding timed light at node {cnfTimedLights.nodeId}. NodeGroup: {string.Join(", ", nodeGroup.Select(x => x.ToString()).ToArray())}");

                    TrafficLightSimulation sim = AddNodeToSimulation(cnfTimedLights.nodeId);
                    sim.SetupTimedTrafficLight(nodeGroup);
                    var timedNode = sim.TimedLight;

                    int j = 0;
                    foreach (Configuration.TimedTrafficLightsStep cnfTimedStep in cnfTimedLights.timedSteps)
                    {
                        Log._Debug($"Loading timed step {j} at node {cnfTimedLights.nodeId}");
                        TimedTrafficLightsStep step = timedNode.AddStep(cnfTimedStep.minTime, cnfTimedStep.maxTime, cnfTimedStep.waitFlowBalance);

                        foreach (KeyValuePair <ushort, Configuration.CustomSegmentLights> e in cnfTimedStep.segmentLights)
                        {
                            if (!NetUtil.IsSegmentValid(e.Key))
                            {
                                continue;
                            }

                            Log._Debug($"Loading timed step {j}, segment {e.Key} at node {cnfTimedLights.nodeId}");
                            CustomSegmentLights lights = null;
                            if (!step.segmentLights.TryGetValue(e.Key, out lights))
                            {
                                Log._Debug($"No segment lights found at timed step {j} for segment {e.Key}, node {cnfTimedLights.nodeId}");
                                continue;
                            }
                            Configuration.CustomSegmentLights cnfLights = e.Value;

                            Log._Debug($"Loading pedestrian light @ seg. {e.Key}, step {j}: {cnfLights.pedestrianLightState} {cnfLights.manualPedestrianMode}");

                            lights.ManualPedestrianMode = cnfLights.manualPedestrianMode;
                            lights.PedestrianLightState = cnfLights.pedestrianLightState;

                            foreach (KeyValuePair <ExtVehicleType, Configuration.CustomSegmentLight> e2 in cnfLights.customLights)
                            {
                                Log._Debug($"Loading timed step {j}, segment {e.Key}, vehicleType {e2.Key} at node {cnfTimedLights.nodeId}");
                                CustomSegmentLight light = null;
                                if (!lights.CustomLights.TryGetValue(e2.Key, out light))
                                {
                                    Log._Debug($"No segment light found for timed step {j}, segment {e.Key}, vehicleType {e2.Key} at node {cnfTimedLights.nodeId}");
                                    continue;
                                }
                                Configuration.CustomSegmentLight cnfLight = e2.Value;

                                light.currentMode = (CustomSegmentLight.Mode)cnfLight.currentMode;
                                light.SetStates(cnfLight.mainLight, cnfLight.leftLight, cnfLight.rightLight, false);
                            }
                        }
                        ++j;
                    }
                } catch (Exception e) {
                    // ignore, as it's probably corrupt save data. it'll be culled on next save
                    Log.Warning("Error loading data from TimedNode (new method): " + e.ToString());
                    success = false;
                }
            }

            foreach (Configuration.TimedTrafficLights cnfTimedLights in data)
            {
                try {
                    TrafficLightSimulation sim = GetNodeSimulation(cnfTimedLights.nodeId);
                    if (sim == null || sim.TimedLight == null)
                    {
                        continue;
                    }

                    var timedNode = sim.TimedLight;

                    timedNode.housekeeping();
                    if (cnfTimedLights.started)
                    {
                        timedNode.Start();
                    }
                } catch (Exception e) {
                    Log.Warning($"Error starting timed light @ {cnfTimedLights.nodeId}: " + e.ToString());
                    success = false;
                }
            }

            return(success);
        }