public static void AddPrioritySegment(ushort nodeId, int segmentId, PrioritySegment.PriorityType type)
{
if (PrioritySegments.ContainsKey(segmentId))
{
var prioritySegment = PrioritySegments[segmentId];
prioritySegment.Node2 = nodeId;
prioritySegment.Instance2 = new PrioritySegment(nodeId, segmentId, type);
}
else
{
PrioritySegments.Add(segmentId, new TrafficSegment());
PrioritySegments[segmentId].Segment = segmentId;
PrioritySegments[segmentId].Node1 = nodeId;
PrioritySegments[segmentId].Instance1 = new PrioritySegment(nodeId, segmentId, type);
}
}
public static void AddPrioritySegment(ushort nodeId, ushort segmentId, PrioritySegment.PriorityType type) {
if (nodeId <= 0 || segmentId <= 0)
return;
Log.Message("adding PrioritySegment @ node " + nodeId + ", seg. " + segmentId + ", type " + type);
var prioritySegment = PrioritySegments[segmentId];
if (prioritySegment != null) { // do not replace with IsPrioritySegment!
prioritySegment.Segment = segmentId;
Log.Message("Priority segment already exists. Node1=" + prioritySegment.Node1 + " Node2=" + prioritySegment.Node2);
if (prioritySegment.Node1 == nodeId || prioritySegment.Node1 == 0) {
Log.Message("Updating Node1");
prioritySegment.Node1 = nodeId;
PrioritySegments[segmentId].Instance1 = new PrioritySegment(nodeId, segmentId, type);
return;
}
if (prioritySegment.Node2 != 0) {
// overwrite Node2
Log.Warning("Overwriting priority segment for node " + nodeId + ", seg. " + segmentId + ", type " + type);
prioritySegment.Node2 = nodeId;
prioritySegment.Instance2 = new PrioritySegment(nodeId, segmentId, type);
rebuildPriorityNodes();
} else {
// add Node2
Log.Message("Adding as Node2");
prioritySegment.Node2 = nodeId;
prioritySegment.Instance2 = new PrioritySegment(nodeId, segmentId, type);
}
} else {
// add Node1
Log.Message("Adding as Node1");
prioritySegment = new TrafficSegment();
prioritySegment.Segment = segmentId;
prioritySegment.Node1 = nodeId;
prioritySegment.Instance1 = new PrioritySegment(nodeId, segmentId, type);
PrioritySegments[segmentId] = prioritySegment;
}
priorityNodes.Add(nodeId);
}
private static bool isValidPriorityNode(ushort nodeId, out NodeValidityState nodeState)
{
nodeState = NodeValidityState.Valid;
if (nodeId <= 0)
{
nodeState = NodeValidityState.Invalid;
return(false);
}
var node = Singleton <NetManager> .instance.m_nodes.m_buffer[nodeId];
if (node.m_flags == NetNode.Flags.None)
{
nodeState = NodeValidityState.Unused;
return(false); // node is unused
}
var nodeSim = GetNodeSimulation(nodeId);
if (nodeSim != null)
{
if ((node.m_flags & NetNode.Flags.TrafficLights) == NetNode.Flags.None)
{
// traffic light simulation is active but node does not have a traffic light
nodeState = NodeValidityState.SimWithoutLight;
return(false);
}
else
{
// check if all timed step segments are valid
if (nodeSim.FlagTimedTrafficLights && nodeSim.TimedTrafficLightsActive)
{
TrafficLightsTimed timedLight = TrafficLightsTimed.GetTimedLight(nodeId);
if (timedLight == null || timedLight.Steps.Count <= 0)
{
Log.Warning("Housekeeping: Timed light is null or no steps!");
RemoveNodeFromSimulation(nodeId);
return(false);
}
/*foreach (var segmentId in timedLight.Steps[0].segmentIds) {
* if (! IsPrioritySegment(nodeId, segmentId)) {
* Log.Warning("Housekeeping: Timed light - Priority segment has gone away!");
* RemoveNodeFromSimulation(nodeId);
* return false;
* }
* }*/
}
return(true);
}
}
else
{
bool ok = false;
for (var s = 0; s < 8; s++)
{
var segmentId = node.GetSegment(s);
if (segmentId <= 0)
{
continue;
}
NetSegment segment = Singleton <NetManager> .instance.m_segments.m_buffer[segmentId];
if (segment.m_startNode != nodeId && segment.m_endNode != nodeId)
{
continue;
}
PrioritySegment prioritySegment = GetPrioritySegment(nodeId, segmentId);
if (prioritySegment == null)
{
continue;
}
// if node is a traffic light, it must not have priority signs
if ((node.m_flags & NetNode.Flags.TrafficLights) != NetNode.Flags.None)
{
prioritySegment.Type = PrioritySegment.PriorityType.None;
}
// if a priority sign is set, everything is ok
if (prioritySegment.Type != PrioritySegment.PriorityType.None)
{
ok = true;
break;
}
}
if (!ok)
{
nodeState = NodeValidityState.NoValidSegments;
}
return(ok);
}
}
public bool StepDone()
{
if (stepDone)
{
return(true);
}
if (startFrame + maxTime <= getCurrentFrame())
{
// maximum time reached. switch!
#if DEBUG
//Log.Message("step finished @ " + nodeId);
#endif
stepDone = true;
endTransitionStart = (int)getCurrentFrame();
return(stepDone);
}
if (startFrame + minTime <= getCurrentFrame())
{
if (masterNodeId != null && TrafficLightsTimed.IsTimedLight((ushort)masterNodeId))
{
TrafficLightsTimed masterTimedNode = TrafficLightsTimed.GetTimedLight((ushort)masterNodeId);
bool done = masterTimedNode.Steps[masterTimedNode.CurrentStep].StepDone();
#if DEBUG
//Log.Message("step finished (1) @ " + nodeId);
#endif
stepDone = done;
if (stepDone)
{
endTransitionStart = (int)getCurrentFrame();
}
return(stepDone);
}
else
{
int numFlows = 0;
int numWaits = 0;
float curMeanFlow = 0;
float curMeanWait = 0;
// we are the master node. calculate traffic data
foreach (ushort timedNodeId in groupNodeIds)
{
if (!TrafficLightsTimed.IsTimedLight(timedNodeId))
{
continue;
}
TrafficLightsTimed slaveTimedNode = TrafficLightsTimed.GetTimedLight(timedNodeId);
TimedTrafficStep slaveStep = slaveTimedNode.Steps[timedNode.CurrentStep];
//List<int> segmentIdsToDelete = new List<int>();
// minimum time reached. check traffic!
foreach (KeyValuePair <ushort, ManualSegmentLight> e in slaveStep.segmentLightStates)
{
var fromSegmentId = e.Key;
var segLightState = e.Value;
float segmentWeight = Singleton <NetManager> .instance.m_segments.m_buffer[fromSegmentId].m_averageLength / maxSegmentLength;
// one of the traffic lights at this segment is green: count minimum traffic flowing through
PrioritySegment prioSeg = TrafficPriority.GetPrioritySegment(timedNodeId, fromSegmentId);
if (prioSeg == null)
{
//Log.Warning("stepDone(): prioSeg is null");
//segmentIdsToDelete.Add(fromSegmentId);
continue; // skip invalid segment
}
foreach (KeyValuePair <ushort, int> f in prioSeg.numCarsGoingToSegmentId)
{
var toSegmentId = f.Key;
var numCars = f.Value;
TrafficPriority.Direction dir = TrafficPriority.GetDirection(fromSegmentId, toSegmentId, timedNodeId);
bool addToFlow = false;
switch (dir)
{
case TrafficPriority.Direction.Left:
if (segLightState.isLeftGreen())
{
addToFlow = true;
}
break;
case TrafficPriority.Direction.Right:
if (segLightState.isRightGreen())
{
addToFlow = true;
}
break;
case TrafficPriority.Direction.Forward:
default:
if (segLightState.isForwardGreen())
{
addToFlow = true;
}
break;
}
if (addToFlow)
{
++numFlows;
curMeanFlow += (float)numCars * segmentWeight;
}
else
{
++numWaits;
curMeanWait += (float)numCars * segmentWeight;
}
}
}
// delete invalid segments from step
/*foreach (int segmentId in segmentIdsToDelete) {
* slaveStep.segmentLightStates.Remove(segmentId);
* }*/
if (slaveStep.segmentLightStates.Count <= 0)
{
invalid = true;
return(true);
}
}
if (numFlows > 0)
{
curMeanFlow /= (float)numFlows;
}
if (numWaits > 0)
{
curMeanWait /= (float)numWaits;
}
float decisionValue = 0.8f; // a value smaller than 1 rewards steady traffic currents
curMeanFlow /= decisionValue;
if (Single.IsNaN(minFlow))
{
minFlow = curMeanFlow;
}
else
{
minFlow = Math.Min(curMeanFlow, minFlow);
}
if (Single.IsNaN(maxWait))
{
maxWait = curMeanWait;
}
else
{
maxWait = Math.Max(curMeanWait, maxWait);
}
// if more cars are waiting than flowing, we change the step
bool done = maxWait > 0 && minFlow < maxWait;
#if DEBUG
//Log.Message("step finished (2) @ " + nodeId);
#endif
stepDone = done;
if (stepDone)
{
endTransitionStart = (int)getCurrentFrame();
}
return(stepDone);
}
}
return(false);
}
