/// <summary>
/// see https://github.com/EpicGames/UnrealEngine/blob/c10022aa46e208b1593dd537c2607784aac158f1/Engine/Source/Runtime/Engine/Private/Collision/Collision.cpp#L42
/// </summary>
/// <param name="reader"></param>
public void Serialize(NetBitReader reader)
{
// pack bitfield with flags
// Most of the time the vectors are the same values, use that as an optimization
BlockingHit = reader.ReadBit();
StartPenetrating = reader.ReadBit();
var bImpactPointEqualsLocation = reader.ReadBit();
var bImpactNormalEqualsNormal = reader.ReadBit();
// Often times the indexes are invalid, use that as an optimization
var bInvalidItem = reader.ReadBit();
var bInvalidFaceIndex = reader.ReadBit();
var bNoPenetrationDepth = reader.ReadBit();
var bInvalidElementIndex = reader.EngineNetworkVersion >= EngineNetworkVersionHistory.HISTORY_ENUM_SERIALIZATION_COMPAT && reader.ReadBit();
Time = reader.ReadSingle();
Location = reader.ReadPackedVector(1, 20);
Normal = reader.SerializePropertyVectorNormal();
ImpactPoint = !bImpactPointEqualsLocation?reader.ReadPackedVector(1, 20) : Location;
ImpactNormal = !bImpactNormalEqualsNormal?reader.SerializePropertyVectorNormal() : Normal;
TraceStart = reader.ReadPackedVector(1, 20);
TraceEnd = reader.ReadPackedVector(1, 20);
PenetrationDepth = !bNoPenetrationDepth?reader.SerializePropertyFloat() : 0.0f;
Distance = (ImpactPoint - TraceStart).Size();
Item = !bInvalidItem?reader.ReadInt32() : 0;
PhysMaterial = reader.SerializePropertyObject();
if (reader.EngineNetworkVersion < EngineNetworkVersionHistory.HISTORY_HITRESULT_INSTANCEHANDLE)
{
Actor = reader.SerializePropertyObject();
}
else
{
Actor = reader.SerializePropertyObject();
// see https://github.com/EpicGames/UnrealEngine/blob/4564529ed77196caada6971f5de1be829900b9e1/Engine/Source/Runtime/Engine/Private/EngineTypes.cpp#L558
//Ar << Handle.Actor;
//Ar << Handle.Manager;
//Ar << Handle.InstanceIndex;
}
Component = reader.SerializePropertyObject();
BoneName = reader.SerializePropertyName();
FaceIndex = !bInvalidFaceIndex?reader.ReadInt32() : 0;
ElementIndex = !bInvalidElementIndex && reader.EngineNetworkVersion >= EngineNetworkVersionHistory.HISTORY_ENUM_SERIALIZATION_COMPAT ? reader.ReadByte() : new byte();
}
/// <summary>
/// see https://github.com/EpicGames/UnrealEngine/blob/c10022aa46e208b1593dd537c2607784aac158f1/Engine/Source/Runtime/Engine/Private/Collision/Collision.cpp#L42
/// </summary>
/// <param name="reader"></param>
public void Serialize(NetBitReader reader)
{
// pack bitfield with flags
var flags = reader.ReadBits(7);
// Most of the time the vectors are the same values, use that as an optimization
BlockingHit = flags[0];
StartPenetrating = flags[1];
bool bImpactPointEqualsLocation = flags[2];
bool bImpactNormalEqualsNormal = flags[3];
// Often times the indexes are invalid, use that as an optimization
bool bInvalidItem = flags[4];
bool bInvalidFaceIndex = flags[5];
bool bNoPenetrationDepth = flags[6];
Time = reader.ReadSingle();
Location = reader.ReadPackedVector(1, 20);
Normal = reader.SerializePropertyVectorNormal();
if (!bImpactPointEqualsLocation)
{
ImpactPoint = reader.ReadPackedVector(1, 20);
}
else
{
ImpactPoint = Location;
}
if (!bImpactNormalEqualsNormal)
{
ImpactNormal = reader.SerializePropertyVectorNormal();
}
else
{
ImpactNormal = Normal;
}
TraceStart = reader.ReadPackedVector(1, 20);
TraceEnd = reader.ReadPackedVector(1, 20);
if (!bNoPenetrationDepth)
{
PenetrationDepth = reader.SerializePropertyFloat();
}
else
{
PenetrationDepth = 0.0f;
}
Distance = (ImpactPoint - TraceStart).Size();
if (!bInvalidItem)
{
Item = reader.ReadInt32();
}
else
{
Item = 0;
}
PhysMaterial = reader.SerializePropertyObject();
Actor = reader.SerializePropertyObject();
Component = reader.SerializePropertyObject();
BoneName = reader.SerializePropertyName();
if (!bInvalidFaceIndex)
{
FaceIndex = reader.ReadInt32();
}
else
{
FaceIndex = 0;
}
}
