@SuppressWarnings("static-method")
private boolean checkNextLinkSemantics(
Link currentLink, Id<Link> nextLinkId, QLinkInternalI nextQLink, QVehicle veh) {
if (nextQLink == null) {
// throw new IllegalStateException
log.warn(
"The link id "
+ nextLinkId
+ " is not available in the simulation network, but vehicle "
+ veh.getId()
+ " plans to travel on that link from link "
+ veh.getCurrentLink().getId());
return false;
}
if (currentLink.getToNode() != nextQLink.getLink().getFromNode()) {
// throw new RuntimeException
log.warn(
"Cannot move vehicle "
+ veh.getId()
+ " from link "
+ currentLink.getId()
+ " to link "
+ nextQLink.getLink().getId());
return false;
}
return true;
}
/**
* Moves vehicles from the inlinks' buffer to the outlinks where possible.<br>
* The inLinks are randomly chosen, and for each link all vehicles in the buffer are moved to
* their desired outLink as long as there is space. If the front most vehicle in a buffer cannot
* move across the node because there is no free space on its destination link, the work on this
* inLink is finished and the next inLink's buffer is handled (this means, that at the node, all
* links have only like one lane, and there are no separate lanes for the different outLinks. Thus
* if the front most vehicle cannot drive further, all other vehicles behind must wait, too, even
* if their links would be free).
*
* @param now The current time in seconds from midnight.
* @return Whether the QNode stays active or not.
*/
/*package*/ boolean doSimStep(final double now) {
int inLinksCounter = 0;
double inLinksCapSum = 0.0;
// Check all incoming links for buffered agents
for (QLinkInternalI link : this.inLinksArrayCache) {
if (!link.isNotOfferingVehicle()) {
this.tempLinks[inLinksCounter] = link;
inLinksCounter++;
inLinksCapSum += link.getLink().getCapacity(now);
}
}
if (inLinksCounter == 0) {
this.active.set(false);
return false; // Nothing to do
}
// randomize based on capacity
for (int auxCounter = 0; auxCounter < inLinksCounter; auxCounter++) {
double rndNum = random.nextDouble() * inLinksCapSum;
double selCap = 0.0;
for (int i = 0; i < inLinksCounter; i++) {
QLinkInternalI link = this.tempLinks[i];
if (link != null) {
selCap += link.getLink().getCapacity(now);
if (selCap >= rndNum) {
inLinksCapSum -= link.getLink().getCapacity(now);
this.tempLinks[i] = null;
this.moveLink(link, now);
break;
}
}
}
}
return true;
}
private static void moveVehicleFromInlinkToOutlink(
final QVehicle veh, final QInternalI fromLane, QLinkInternalI nextQueueLink) {
fromLane.popFirstVehicle();
veh.getDriver().notifyMoveOverNode(nextQueueLink.getLink().getId());
nextQueueLink.addFromUpstream(veh);
}