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ignore remote update younger than recent bid

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This commit is contained in:
Andrew Meadows 2017-06-14 16:04:52 -07:00
parent 15a5464bab
commit 8d19395b0a
1 changed files with 20 additions and 12 deletions
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32
libraries/entities/src/EntityItem.cpp
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@ -386,7 +386,13 @@ int EntityItem::readEntityDataFromBuffer(const unsigned char* data, int bytesLef
return 0;
}
qint64 clockSkew = args.sourceNode ? args.sourceNode->getClockSkewUsec() : 0;
int64_t clockSkew = 0;
uint64_t maxPingRoundTrip = 33333; // two frames periods at 60 fps
if (args.sourceNode) {
clockSkew = args.sourceNode->getClockSkewUsec();
const float MSECS_PER_USEC = 1000;
maxPingRoundTrip += args.sourceNode->getPingMs() * MSECS_PER_USEC;
}
BufferParser parser(data, bytesLeftToRead);
@ -653,7 +659,6 @@ int EntityItem::readEntityDataFromBuffer(const unsigned char* data, int bytesLef
const QUuid& myNodeID = nodeList->getSessionUUID();
bool weOwnSimulation = _simulationOwner.matchesValidID(myNodeID);
// pack SimulationOwner and terse update properties near each other
// NOTE: the server is authoritative for changes to simOwnerID so we always unpack ownership data
// even when we would otherwise ignore the rest of the packet.
@ -678,7 +683,7 @@ int EntityItem::readEntityDataFromBuffer(const unsigned char* data, int bytesLef
if (newSimOwner.getID().isNull() && !_simulationOwner.pendingRelease(lastEditedFromBufferAdjusted)) {
// entity-server is trying to clear our ownership (probably at our own request)
// but we actually want to own it, therefore we ignore this clear event
// and pretend that we own it (we assume we'll recover it soon)
// and pretend that we own it (e.g. we assume we'll receive ownership soon)
// However, for now, when the server uses a newer time than what we sent, listen to what we're told.
if (overwriteLocalData) {
@ -690,16 +695,19 @@ int EntityItem::readEntityDataFromBuffer(const unsigned char* data, int bytesLef
// recompute weOwnSimulation for later
weOwnSimulation = _simulationOwner.matchesValidID(myNodeID);
}
} else if (newSimOwner.getID().isNull() && _simulationOwner.pendingTake(lastEditedFromBufferAdjusted)) {
// entity-server is trying to clear someone else's ownership
// but we want to own it, therefore we ignore this clear event
// and pretend that we own it (we assume we'll get it soon)
} else if (_simulationOwner.pendingTake(now - maxPingRoundTrip)) {
// we sent a bid before this packet could have been sent from the server
// so we ignore it and pretend we own the object's simulation
weOwnSimulation = true;
if (!_simulationOwner.isNull()) {
// someone else really did own it
markDirtyFlags(Simulation::DIRTY_SIMULATOR_ID);
somethingChanged = true;
_simulationOwner.clearCurrentOwner();
if (newSimOwner.getID().isNull()) {
// entity-server is trying to clear someone else's ownership
// but we want to own it, therefore we ignore this clear event
if (!_simulationOwner.isNull()) {
// someone else really did own it
markDirtyFlags(Simulation::DIRTY_SIMULATOR_ID);
somethingChanged = true;
_simulationOwner.clearCurrentOwner();
}
}
} else if (newSimOwner.matchesValidID(myNodeID) && !_hasBidOnSimulation) {
// entity-server tells us that we have simulation ownership while we never requested this for this EntityItem,