public override Object ReadGameData(Boolean forSpotter)
{
CrewChiefV4.PCars2.PCars2SharedMemoryReader.PCars2StructWrapper structWrapper = new CrewChiefV4.PCars2.PCars2SharedMemoryReader.PCars2StructWrapper();
structWrapper.ticksWhenRead = DateTime.UtcNow.Ticks;
lock (this)
{
if (!initialised)
{
if (!InitialiseInternal())
{
throw new GameDataReadException("Failed to initialise UDP client");
}
}
previousGameState = StructHelper.Clone(currentGameState);
currentGameState = StructHelper.Clone(workingGameState);
if (forSpotter)
{
newSpotterData = false;
}
}
structWrapper.data = currentGameState;
if (!forSpotter && dumpToFile && dataToDump != null && currentGameState.mTrackLocation != null &&
currentGameState.mTrackLocation.Length > 0)
{
dataToDump.Add(structWrapper);
}
return(structWrapper);
}
private int readRawData(byte[] rawData)
{
// unpack the packet header manually before attempting to load into a struct
uint packetNumber = BitConverter.ToUInt32(rawData, 0);
uint categoryPacketNumber = BitConverter.ToUInt32(rawData, 4);
int partialPacketIndexBytes = rawData[8];
int partialPacketNumber = rawData[9];
EUDPStreamerPacketHandlerType packetType = (EUDPStreamerPacketHandlerType)rawData[10];
int packetVersion = rawData[11];
int frameLength = 0;
switch (packetType)
{
case EUDPStreamerPacketHandlerType.eCarPhysics:
telemPacketCount++;
if (telemPacketCount > packetCountAtStartOfNextRateCheck)
{
lastPacketRateEstimate = (int)((float)TimeSpan.TicksPerSecond * (float)(telemPacketCount - packetCountAtStartOfCurrentRateCheck) / (float)(DateTime.UtcNow.Ticks - ticksAtStartOfCurrentPacketRateCheck));
Console.WriteLine("Packet rate = " + lastPacketRateEstimate +
"Hz, totals:" +
"\rtelem = " + telemPacketCount +
"\rraceDefinition = " + raceDefinitionPacketCount +
"\rparticipants = " + participantsPacketCount +
"\rtimings = " + timingsPacketCount +
"\rgameState = " + gameStatePacketCount +
"\rweather = " + weatherStatePacketCount +
"\rvehicleNames = " + vehicleNamesPacketCount +
"\rtimeStats = " + timeStatsPacketCount +
"\rparticipantVehicleNames = " + participantVehicleNamesPacketCount +
"\rin sequence = " + inSequenceTelemCount + " oos accepted = " + acceptedOutOfSequenceTelemCount + " oos rejected = " + discardedTelemCount);
packetCountAtStartOfCurrentRateCheck = telemPacketCount;
packetCountAtStartOfNextRateCheck = packetCountAtStartOfCurrentRateCheck + packetRateCheckInterval;
ticksAtStartOfCurrentPacketRateCheck = DateTime.UtcNow.Ticks;
}
frameLength = UDPPacketSizes.telemetryPacketSize;
Boolean sequenceCheckOK = isNextInSequence(packetNumber);
if (sequenceCheckOK)
{
inSequenceTelemCount++;
}
if (strictPacketOrdering && !sequenceCheckOK)
{
discardedTelemCount++;
}
else
{
GCHandle telemHandle = GCHandle.Alloc(rawData.Take(frameLength).ToArray(), GCHandleType.Pinned);
try
{
sTelemetryData telem = (sTelemetryData)Marshal.PtrToStructure(telemHandle.AddrOfPinnedObject(), typeof(sTelemetryData));
if (sequenceCheckOK || !telemIsOutOfSequence(telem))
{
buttonsState = ConvertBytesToBoolArray(telem.sDPad, telem.sJoyPad1, telem.sJoyPad2);
lastSequenceNumberForTelemPacket = (int)packetNumber;
workingGameState = StructHelper.MergeWithExistingState(workingGameState, telem);
newSpotterData = true;
}
}
finally
{
telemHandle.Free();
}
}
break;
case EUDPStreamerPacketHandlerType.eRaceDefinition:
raceDefinitionPacketCount++;
frameLength = UDPPacketSizes.raceDataPacketSize;
GCHandle raceDefHandle = GCHandle.Alloc(rawData.Take(frameLength).ToArray(), GCHandleType.Pinned);
try
{
sRaceData raceDefinition = (sRaceData)Marshal.PtrToStructure(raceDefHandle.AddrOfPinnedObject(), typeof(sRaceData));
workingGameState = StructHelper.MergeWithExistingState(workingGameState, raceDefinition);
}
finally
{
raceDefHandle.Free();
}
break;
case EUDPStreamerPacketHandlerType.eParticipants:
participantsPacketCount++;
frameLength = UDPPacketSizes.participantsDataPacketSize;
GCHandle participantsHandle = GCHandle.Alloc(rawData.Take(frameLength).ToArray(), GCHandleType.Pinned);
try
{
sParticipantsData participants = (sParticipantsData)Marshal.PtrToStructure(participantsHandle.AddrOfPinnedObject(), typeof(sParticipantsData));
workingGameState = StructHelper.MergeWithExistingState(workingGameState, participants);
}
finally
{
participantsHandle.Free();
}
break;
case EUDPStreamerPacketHandlerType.eTimings:
timingsPacketCount++;
frameLength = UDPPacketSizes.timingsDataPacketSize;
GCHandle timingsHandle = GCHandle.Alloc(rawData.Take(frameLength).ToArray(), GCHandleType.Pinned);
try
{
sTimingsData timings = (sTimingsData)Marshal.PtrToStructure(timingsHandle.AddrOfPinnedObject(), typeof(sTimingsData));
workingGameState = StructHelper.MergeWithExistingState(workingGameState, timings);
}
finally
{
timingsHandle.Free();
}
break;
case EUDPStreamerPacketHandlerType.eGameState:
gameStatePacketCount++;
frameLength = UDPPacketSizes.gameStateDataPacketSize;
GCHandle gameStateHandle = GCHandle.Alloc(rawData.Take(frameLength).ToArray(), GCHandleType.Pinned);
try
{
sGameStateData gameState = (sGameStateData)Marshal.PtrToStructure(gameStateHandle.AddrOfPinnedObject(), typeof(sGameStateData));
workingGameState = StructHelper.MergeWithExistingState(workingGameState, gameState);
}
finally
{
gameStateHandle.Free();
}
break;
case EUDPStreamerPacketHandlerType.eWeatherState:
weatherStatePacketCount++;
Console.WriteLine("Got an undocumented and unsupported weather packet");
break;
case EUDPStreamerPacketHandlerType.eVehicleNames:
weatherStatePacketCount++;
Console.WriteLine("Got an undocumented and unsupported vehicle names packet");
break;
case EUDPStreamerPacketHandlerType.eTimeStats:
participantsPacketCount++;
frameLength = UDPPacketSizes.timeStatsPacketSize;
GCHandle timeStatsHandle = GCHandle.Alloc(rawData.Take(frameLength).ToArray(), GCHandleType.Pinned);
try
{
sTimeStatsData timeStatsData = (sTimeStatsData)Marshal.PtrToStructure(timeStatsHandle.AddrOfPinnedObject(), typeof(sTimeStatsData));
workingGameState = StructHelper.MergeWithExistingState(workingGameState, timeStatsData);
}
finally
{
timeStatsHandle.Free();
}
break;
case EUDPStreamerPacketHandlerType.eParticipantVehicleNames:
participantsPacketCount++;
frameLength = UDPPacketSizes.participantVehicleNamesPacketSize;
GCHandle vehNamesHandle = GCHandle.Alloc(rawData.Take(frameLength).ToArray(), GCHandleType.Pinned);
try
{
sParticipantVehicleNamesData participantVehicleNames = (sParticipantVehicleNamesData)Marshal.PtrToStructure(vehNamesHandle.AddrOfPinnedObject(), typeof(sParticipantVehicleNamesData));
workingGameState = StructHelper.MergeWithExistingState(workingGameState, participantVehicleNames);
}
finally
{
vehNamesHandle.Free();
}
break;
}
return(frameLength);
}
public override string ToString()
{
return("num participants " + mNumParticipants + " viewed index " + mViewedParticipantIndex + " driver name " +
StructHelper.getNameFromBytes(mParticipantData[mViewedParticipantIndex].mName) + " LF tyre " + StructHelper.getNameFromBytes(mLFTyreCompoundName));
}
public int mCurrentSector; // [ enum (Type#4) Current Sector ]
public override string ToString()
{
return("position " + mRacePosition + " name " + StructHelper.getNameFromBytes(mName).ToLower() + " lapsCompleted " + mLapsCompleted + " lapDist " + mCurrentLapDistance);
}
