/**
* Utility function to make a copy of the net properties
* @param Source - Memory to copy initial state from
**/
void FObjectReplicator::InitRecentProperties( uint8 * Source )
{
check( GetObject() != NULL );
check( Connection != NULL );
check( RepState == NULL );
UClass * InObjectClass = GetObject()->GetClass();
RepState = new FRepState;
// Initialize the RepState memory
TSharedPtr<FRepChangedPropertyTracker> RepChangedPropertyTracker = Connection->Driver->FindOrCreateRepChangedPropertyTracker( GetObject() );
RepLayout->InitRepState( RepState, InObjectClass, Source, RepChangedPropertyTracker );
RepState->RepLayout = RepLayout;
// Init custom delta property state
for ( TFieldIterator<UProperty> It( InObjectClass ); It; ++It )
{
if ( It->PropertyFlags & CPF_Net )
{
if ( IsCustomDeltaProperty( *It ) )
{
// We have to handle dynamic properties of the array individually
for ( int32 ArrayIdx = 0; ArrayIdx < It->ArrayDim; ++ArrayIdx )
{
FOutBunch DeltaState( Connection->PackageMap );
TSharedPtr<INetDeltaBaseState> & NewState = RecentCustomDeltaState.FindOrAdd(It->RepIndex + ArrayIdx);
NewState.Reset();
TSharedPtr<INetDeltaBaseState> OldState;
SerializeCustomDeltaProperty( Connection, Source, *It, ArrayIdx, DeltaState, NewState, OldState );
}
}
}
}
}
void FObjectReplicator::ReplicateCustomDeltaProperties( FOutBunch & Bunch, int32 & LastIndex, bool & bContentBlockWritten )
{
if ( LifetimeCustomDeltaProperties.Num() == 0 )
{
// No custom properties
return;
}
UObject * Object = GetObject();
check( Object );
check( OwningChannel );
UNetConnection * OwningChannelConnection = OwningChannel->Connection;
// Replicate those properties.
for ( int32 i = 0; i < LifetimeCustomDeltaProperties.Num(); i++ )
{
// Get info.
const int32 RetireIndex = LifetimeCustomDeltaProperties[i];
FPropertyRetirement & Retire = Retirement[RetireIndex];
FRepRecord * Rep = &ObjectClass->ClassReps[RetireIndex];
UProperty * It = Rep->Property;
int32 Index = Rep->Index;
const int32 BitsWrittenBeforeThis = Bunch.GetNumBits();
// If this is a dynamic array, we do the delta here
TSharedPtr<INetDeltaBaseState> & OldState = RecentCustomDeltaState.FindOrAdd( RetireIndex );
TSharedPtr<INetDeltaBaseState> NewState;
// Update Retirement records with this new state so we can handle packet drops.
FPropertyRetirement ** Rec = UpdateAckedRetirements( Retire, OwningChannelConnection->OutAckPacketId );
ValidateRetirementHistory( Retire );
// Our temp writer should always be in a reset state here
check( TempBitWriter->GetNumBits() == 0 );
//-----------------------------------------
// Do delta serialization on dynamic properties
//-----------------------------------------
const bool WroteSomething = SerializeCustomDeltaProperty( OwningChannelConnection, (void*)Object, It, Index, *TempBitWriter, NewState, OldState );
if ( !WroteSomething )
{
continue;
}
check( TempBitWriter->GetNumBits() > 0 );
*Rec = new FPropertyRetirement();
// Remember what the old state was at this point in time. If we get a nak, we will need to revert back to this.
(*Rec)->DynamicState = OldState;
// Save NewState into the RecentCustomDeltaState array (old state is a reference into our RecentCustomDeltaState map)
OldState = NewState;
// Write header, and data to send to the actual bunch
RepLayout->WritePropertyHeader( Object, ObjectClass, OwningChannel, It, Bunch, Index, LastIndex, bContentBlockWritten );
// Send property.
Bunch.SerializeBits( TempBitWriter->GetData(), TempBitWriter->GetNumBits() );
// Reset our temp bit writer
TempBitWriter->Reset();
}
}
void FObjectReplicator::ReplicateCustomDeltaProperties( FOutBunch & Bunch, FReplicationFlags RepFlags, bool & bContentBlockWritten )
{
if ( LifetimeCustomDeltaProperties.Num() == 0 )
{
// No custom properties
return;
}
UObject* Object = GetObject();
check( Object );
check( OwningChannel );
UNetConnection * OwningChannelConnection = OwningChannel->Connection;
// Initialize a map of which conditions are valid
bool ConditionMap[COND_Max];
const bool bIsInitial = RepFlags.bNetInitial ? true : false;
const bool bIsOwner = RepFlags.bNetOwner ? true : false;
const bool bIsSimulated = RepFlags.bNetSimulated ? true : false;
const bool bIsPhysics = RepFlags.bRepPhysics ? true : false;
ConditionMap[COND_None] = true;
ConditionMap[COND_InitialOnly] = bIsInitial;
ConditionMap[COND_OwnerOnly] = bIsOwner;
ConditionMap[COND_SkipOwner] = !bIsOwner;
ConditionMap[COND_SimulatedOnly] = bIsSimulated;
ConditionMap[COND_AutonomousOnly] = !bIsSimulated;
ConditionMap[COND_SimulatedOrPhysics] = bIsSimulated || bIsPhysics;
ConditionMap[COND_InitialOrOwner] = bIsInitial || bIsOwner;
ConditionMap[COND_Custom] = true;
// Replicate those properties.
for ( int32 i = 0; i < LifetimeCustomDeltaProperties.Num(); i++ )
{
// Get info.
const int32 RetireIndex = LifetimeCustomDeltaProperties[i];
FPropertyRetirement & Retire = Retirement[RetireIndex];
FRepRecord * Rep = &ObjectClass->ClassReps[RetireIndex];
UProperty * It = Rep->Property;
int32 Index = Rep->Index;
if (LifetimeCustomDeltaPropertyConditions.IsValidIndex(i))
{
// Check the replication condition here
ELifetimeCondition RepCondition = LifetimeCustomDeltaPropertyConditions[i];
check(RepCondition >= 0 && RepCondition < COND_Max);
if (!ConditionMap[RepCondition])
{
// We didn't pass the condition so don't replicate us
continue;
}
}
const int32 BitsWrittenBeforeThis = Bunch.GetNumBits();
// If this is a dynamic array, we do the delta here
TSharedPtr<INetDeltaBaseState> & OldState = RecentCustomDeltaState.FindOrAdd( RetireIndex );
TSharedPtr<INetDeltaBaseState> NewState;
// Update Retirement records with this new state so we can handle packet drops.
// LastNext will be pointer to the last "Next" pointer in the list (so pointer to a pointer)
FPropertyRetirement ** LastNext = UpdateAckedRetirements( Retire, OwningChannelConnection->OutAckPacketId );
check( LastNext != NULL );
check( *LastNext == NULL );
ValidateRetirementHistory( Retire );
FNetBitWriter TempBitWriter( OwningChannel->Connection->PackageMap, 0 );
//-----------------------------------------
// Do delta serialization on dynamic properties
//-----------------------------------------
const bool WroteSomething = SerializeCustomDeltaProperty( OwningChannelConnection, (void*)Object, It, Index, TempBitWriter, NewState, OldState );
if ( !WroteSomething )
{
continue;
}
*LastNext = new FPropertyRetirement();
// Remember what the old state was at this point in time. If we get a nak, we will need to revert back to this.
(*LastNext)->DynamicState = OldState;
// Save NewState into the RecentCustomDeltaState array (old state is a reference into our RecentCustomDeltaState map)
OldState = NewState;
// Write header, and data to send to the actual bunch
RepLayout->WritePropertyHeader( Object, ObjectClass, OwningChannel, It, Bunch, Index, bContentBlockWritten );
const int NumStartingBits = Bunch.GetNumBits();
// Send property.
Bunch.SerializeBits( TempBitWriter.GetData(), TempBitWriter.GetNumBits() );
NETWORK_PROFILER(GNetworkProfiler.TrackReplicateProperty(It, Bunch.GetNumBits() - NumStartingBits));
}
}