void SimpleEntitySimulation::updateEntitiesInternal(const quint64& now) {
// If an Entity has a simulation owner and we don't get an update for some amount of time,
// clear the owner. This guards against an interface failing to release the Entity when it
// has finished simulating it.
auto nodeList = DependencyManager::get<LimitedNodeList>();
SetOfEntities::iterator itemItr = _entitiesWithSimulator.begin();
while (itemItr != _entitiesWithSimulator.end()) {
EntityItemPointer entity = *itemItr;
if (entity->getSimulatorID().isNull()) {
itemItr = _entitiesWithSimulator.erase(itemItr);
} else if (now - entity->getLastChangedOnServer() >= AUTO_REMOVE_SIMULATION_OWNER_USEC) {
SharedNodePointer ownerNode = nodeList->nodeWithUUID(entity->getSimulatorID());
if (ownerNode.isNull() || !ownerNode->isAlive()) {
qCDebug(entities) << "auto-removing simulation owner" << entity->getSimulatorID();
entity->clearSimulationOwnership();
itemItr = _entitiesWithSimulator.erase(itemItr);
// zero the velocity on this entity so that it doesn't drift far away
entity->setVelocity(glm::vec3(0.0f));
} else {
++itemItr;
}
} else {
++itemItr;
}
}
}
void SimpleEntitySimulation::clearOwnership(const QUuid& ownerID) {
QMutexLocker lock(&_mutex);
SetOfEntities::iterator itemItr = _entitiesWithSimulationOwner.begin();
while (itemItr != _entitiesWithSimulationOwner.end()) {
EntityItemPointer entity = *itemItr;
if (entity->getSimulatorID() == ownerID) {
// the simulator has abandonded this object --> remove from owned list
qCDebug(entities) << "auto-removing simulation owner " << entity->getSimulatorID();
itemItr = _entitiesWithSimulationOwner.erase(itemItr);
if (entity->getDynamic() && entity->hasLocalVelocity()) {
// it is still moving dynamically --> add to orphaned list
_entitiesThatNeedSimulationOwner.insert(entity);
quint64 expiry = entity->getLastChangedOnServer() + MAX_OWNERLESS_PERIOD;
if (expiry < _nextOwnerlessExpiry) {
_nextOwnerlessExpiry = expiry;
}
}
// remove ownership and dirty all the tree elements that contain the it
entity->clearSimulationOwnership();
entity->markAsChangedOnServer();
DirtyOctreeElementOperator op(entity->getElement());
getEntityTree()->recurseTreeWithOperator(&op);
} else {
++itemItr;
}
}
}