/// <summary>
/// Recalculates lane arrows based on present lane connections.
/// </summary>
/// <param name="laneId">Affected lane</param>
/// <param name="nodeId">Affected node</param>
private void RecalculateLaneArrows(uint laneId, ushort nodeId, bool startNode)
{
#if DEBUG
bool logLaneConnections = DebugSwitch.LaneConnections.Get();
#else
const bool logLaneConnections = false;
#endif
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}) called");
}
if (!Options.laneConnectorEnabled)
{
return;
}
if (!Flags.CanHaveLaneArrows(laneId, startNode))
{
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"lane {laneId}, startNode? {startNode} must not have lane arrows");
}
return;
}
if (!HasConnections(laneId, startNode))
{
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"lane {laneId} does not have outgoing connections");
}
return;
}
if (nodeId == 0)
{
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
"invalid node");
}
return;
}
var arrows = LaneArrows.None;
NetManager netManager = Singleton <NetManager> .instance;
ushort segmentId = netManager.m_lanes.m_buffer[laneId].m_segment;
if (segmentId == 0)
{
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
"invalid segment");
}
return;
}
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"startNode? {startNode}");
}
if (!Services.NetService.IsNodeValid(nodeId))
{
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
"Node is invalid");
}
return;
}
IExtSegmentEndManager segEndMan = Constants.ManagerFactory.ExtSegmentEndManager;
ExtSegmentEnd segEnd = segEndMan.ExtSegmentEnds[segEndMan.GetIndex(segmentId, startNode)];
Services.NetService.IterateNodeSegments(
nodeId,
(ushort otherSegmentId, ref NetSegment otherSeg) => {
ArrowDirection dir = segEndMan.GetDirection(ref segEnd, otherSegmentId);
if (logLaneConnections)
{
Log._Debug(
$"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"processing connected segment {otherSegmentId}. dir={dir}");
}
// check if arrow has already been set for this direction
switch (dir)
{
case ArrowDirection.Turn: {
if (Constants.ServiceFactory.SimulationService.TrafficDrivesOnLeft)
{
if ((arrows & LaneArrows.Right) != LaneArrows.None)
{
return(true);
}
}
else
{
if ((arrows & LaneArrows.Left) != LaneArrows.None)
{
return(true);
}
}
break;
}
case ArrowDirection.Forward: {
if ((arrows & LaneArrows.Forward) != LaneArrows.None)
{
return(true);
}
break;
}
case ArrowDirection.Left: {
if ((arrows & LaneArrows.Left) != LaneArrows.None)
{
return(true);
}
break;
}
case ArrowDirection.Right: {
if ((arrows & LaneArrows.Right) != LaneArrows.None)
{
return(true);
}
break;
}
default: {
return(true);
}
}
if (logLaneConnections)
{
Log._Debug(
$"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"processing connected segment {otherSegmentId}: need to determine arrows");
}
bool addArrow = false;
uint curLaneId = netManager.m_segments.m_buffer[otherSegmentId].m_lanes;
while (curLaneId != 0)
{
if (logLaneConnections)
{
Log._Debug(
$"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"processing connected segment {otherSegmentId}: checking lane {curLaneId}");
}
if (AreLanesConnected(laneId, curLaneId, startNode))
{
if (logLaneConnections)
{
Log._Debug(
$"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"processing connected segment {otherSegmentId}: checking lane " +
$"{curLaneId}: lanes are connected");
}
addArrow = true;
break;
}
curLaneId = netManager.m_lanes.m_buffer[curLaneId].m_nextLane;
}
if (logLaneConnections)
{
Log._Debug(
$"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"processing connected segment {otherSegmentId}: finished processing " +
$"lanes. addArrow={addArrow} arrows (before)={arrows}");
}
if (!addArrow)
{
return(true);
}
switch (dir)
{
case ArrowDirection.Turn: {
if (Constants.ServiceFactory.SimulationService.TrafficDrivesOnLeft)
{
arrows |= LaneArrows.Right;
}
else
{
arrows |= LaneArrows.Left;
}
break;
}
case ArrowDirection.Forward: {
arrows |= LaneArrows.Forward;
break;
}
case ArrowDirection.Left: {
arrows |= LaneArrows.Left;
break;
}
case ArrowDirection.Right: {
arrows |= LaneArrows.Right;
break;
}
default: {
return(true);
}
}
if (logLaneConnections)
{
Log._Debug(
$"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"processing connected segment {otherSegmentId}: arrows={arrows}");
}
return(true);
});
if (logLaneConnections)
{
Log._Debug($"LaneConnectionManager.RecalculateLaneArrows({laneId}, {nodeId}): " +
$"setting lane arrows to {arrows}");
}
LaneArrowManager.Instance.SetLaneArrows(laneId, arrows, true);
}