public void SendInputFrameDeltas(SWBytes inputFrameDeltas, int count, byte inputSize)
{
for (int i = 0; i < count; i++)
{
int playerFrameNumber = inputFrameDeltas.PopInt();
int predictedFrameNumber = inputFrameDeltas.PopInt();
byte length = inputFrameDeltas.PopByte();
if (playerFrameNumber == _lastReceivedPlayerFrameNumber + 1)
{
int correctPredictedFrameNumber = 0;
if (predictedFrameNumber != 0)
{
correctPredictedFrameNumber = _lastPredictedFrameNumber + 1;
_predictedFrameNumber = predictedFrameNumber;
_correctFrameNumber = correctPredictedFrameNumber;
SWConsole.Info($"MOCK: SendInputFrameDeltas playerFrameNumber={playerFrameNumber} correctPredictedFrameNumber={correctPredictedFrameNumber} _predictedFrameNumber={_predictedFrameNumber}");
}
InputFrameDelta delta = new InputFrameDelta();
delta.frameNumber = playerFrameNumber;
inputFrameDeltas.PopByteBuffer(delta.bytes, 0, length);
_receivedInputFrameDeltas.Enqueue(delta);
_lastReceivedPlayerFrameNumber = playerFrameNumber;
_lastPredictedFrameNumber = correctPredictedFrameNumber;
}
else
{
SWConsole.Info($"MOCK: SendInputFrameDeltas SKIP playerFrameNumber={playerFrameNumber}");
inputFrameDeltas.SkipRead(length);
}
}
}
//should include startFrame, include endframe
public void HandleInputFramesInBackground(SWBytes initialInputFramesData, int startFrameNumber, int endFrameNumber)
{
lock (FRAME_SYNC_LOCK)
{
if (_game.gameState == FrameSyncGameState.Stopped)
{
return;
}
SWConsole.Info($"HandleInputFramesInBackground startFrameNumber={startFrameNumber} endFrameNumber={endFrameNumber}");
_startFrameNumber = startFrameNumber;
_endFrameNumber = endFrameNumber;
_initialInputFrameDeltas.Clear();
_initialInputFramesData = initialInputFramesData;
for (int i = startFrameNumber; i < endFrameNumber; i++)
{
InputFrameDelta delta = new InputFrameDelta();
byte length = initialInputFramesData.PopByte();
initialInputFramesData.PopByteBuffer(delta.bytes, 0, length);
_initialInputFrameDeltas.Add(delta);
}
int expected = endFrameNumber - startFrameNumber;
int got = _initialInputFrameDeltas.Count;
//reset read index, we will save the data to disk later
_initialInputFramesData.SetReadIndex(0);
if (expected != got)
{
SWConsole.Error($"HandleInputFramesInBackground got={got} expected={expected}");
}
}
}
int Simulate(int frameNumber)
{
SWConsole.Crit($"Engine: Simulate frameNumber={frameNumber}");
InputFrame lastInputFrame = inputFrames[frameNumber - 1];
InputFrameDelta lastInputFrameDelta = inputFrameDeltas[frameNumber - 1];
int playerFrameNumber = lastInputFrameDelta.playerFrameNumber;
InputFrame inputFrame = inputFrames[frameNumber];
if (inputFrame == null)
{
inputFrame = new InputFrame(frameNumber);
inputFrames[frameNumber] = inputFrame;
}
inputFrame.FrameNumber = frameNumber;
inputFrame.ResetBytes();
if (lastInputFrame == null || _input == null || inputFrame == null || lastInputFrameDelta == null)
{
SWConsole.Error($"Engine: Simulate input data is nil {lastInputFrame} {_input} {inputFrame} {lastInputFrameDelta}");
}
lastInputFrameDelta.Apply(_input, lastInputFrame, inputFrame);
FrameSyncUpdateType updateType = FrameSyncUpdateType.Normal;
DoSimulate(updateType, inputFrame, frameNumber);
return(playerFrameNumber);
}
void FlushInputOnlinePrediction()
{
InputFrameDelta previousInputDelta = localInputFrameDeltas[_currentLocalInputFrameDeltaNumber];
_currentLocalInputFrameDeltaNumber++;
if (_nextPlayerFrameNumberToConfirm == 0)
{
_nextPlayerFrameNumberToConfirm = _currentLocalInputFrameDeltaNumber;
}
InputFrameDelta inputFrameDelta = localInputFrameDeltas[_currentLocalInputFrameDeltaNumber];
if (inputFrameDelta == null)
{
inputFrameDelta = new InputFrameDelta(_currentLocalInputFrameDeltaNumber);
localInputFrameDeltas[_currentLocalInputFrameDeltaNumber] = inputFrameDelta;
}
inputFrameDelta.frameNumber = _currentLocalInputFrameDeltaNumber;
inputFrameDelta.resend = FrameSyncConstant.LOCAL_INPUT_FRAME_RESEND_COUNT;
inputFrameDelta.ResetBytes();
_input.ExportInput(inputFrameDelta.bytes);
bool inputChanged = false;
if (previousInputDelta == null)
{
inputChanged = true;
}
else
{
bool sameInput = previousInputDelta.IsSameInput(inputFrameDelta);
inputChanged = !sameInput;
}
if (!inputChanged)
{
SWConsole.Crit($"Engine: FlushInputOnlinePrediction Input did NOT Change: localFN={_currentLocalInputFrameDeltaNumber}");
//_currentLocalInputFrameDeltaNumber--;
//send an empty frame to keep the fixed delta time adjustment running
inputFrameDelta.ResetBytes();
}
else
{
SWConsole.Crit($"Engine: FlushInputOnlinePrediction Input changed: localFN={_currentLocalInputFrameDeltaNumber}");
}
SendLocalInputs();
}
void FlushInputOffline()
{
//write directly to inputFrameDeltas
InputFrameDelta inputFrameDelta = inputFrameDeltas[_currentInputFrameNumber];
if (inputFrameDelta == null)
{
inputFrameDelta = new InputFrameDelta(_currentInputFrameNumber);
inputFrameDeltas[_currentInputFrameNumber] = inputFrameDelta;
}
inputFrameDelta.frameNumber = _currentInputFrameNumber;
inputFrameDelta.ResetBytes();
_input.ExportInput(inputFrameDelta.bytes);
}
void WaitingForRoomFrame()
{
if (_firstFrameReceived > 0)
{
SWConsole.Crit($"WaitingForRoomFrame _firstFrameReceived={_firstFrameReceived}");
InputFrameDelta delta = inputFrameDeltas[_firstFrameReceived];
if (delta != null)
{
SWConsole.Crit($"WaitingForRoomFrame delta not null Delta.frameNumber = {delta.frameNumber}");
if (delta.frameNumber == _firstFrameReceived)
{
if (_firstFrameReceived > 1)
{
_game.gameState = FrameSyncGameState.WaitingForInitialSystemData;
SWConsole.Crit($"WaitingForRoomFrame RequestInputFrames end={_firstFrameReceived}");
_io.RequestInputFrames(1, _firstFrameReceived);
SWConsole.Crit($"WaitingForRoomFrame game WaitingForInitialSystemData now");
}
else
{
//start from 1st frame
_currentInputFrameNumber = 1;
//create an empty input frame to start with
inputFrames[_currentInputFrameNumber] = new InputFrame(_currentInputFrameNumber);
_game.gameState = FrameSyncGameState.Running;
SetSaveHandler(0);
SWConsole.Crit($"WaitingForRoomFrame game running now");
}
ResetTimeStamp();
return;
}
}
}
if (CheckInterval(FrameSyncConstant.SERVER_FRAME_INITIALIZATION_INTERVAL))
{
SWBytes buffer = new SWBytes(32);
buffer.Push(0); //frame number
buffer.Push(0); //predict
byte length = 0;
buffer.Push(length);
_io.SendInputFrameDeltas(buffer, 1, _input.Size);
}
}
bool Predict(int localFrameDeltaNumber, int frameNumber)
{
SWConsole.Crit($"Engine: Predict localFrameDeltaNumber={localFrameDeltaNumber} frameNumber={frameNumber}");
InputFrameDelta inputFrameDelta = localInputFrameDeltas[localFrameDeltaNumber];
_inputFrameForPrediction.FrameNumber = frameNumber;
_inputFrameForPrediction.ResetBytes();
inputFrameDelta.Apply(_input, _lastInputFrameForPrediction, _inputFrameForPrediction);
_input.ApplyPredictionModifier(_inputFrameForPrediction.bytes);
FrameSyncUpdateType updateType = FrameSyncUpdateType.Prediction;
DoSimulate(updateType, _inputFrameForPrediction, frameNumber);
return(true);
}
public void FlushInputOnline()
{
InputFrameDelta previousInputDelta = localInputFrameDeltas[_currentLocalInputFrameDeltaNumber];
_currentLocalInputFrameDeltaNumber++;
InputFrameDelta inputFrameDelta = localInputFrameDeltas[_currentLocalInputFrameDeltaNumber];
if (inputFrameDelta == null)
{
inputFrameDelta = new InputFrameDelta(_currentLocalInputFrameDeltaNumber);
localInputFrameDeltas[_currentLocalInputFrameDeltaNumber] = inputFrameDelta;
}
inputFrameDelta.frameNumber = _currentLocalInputFrameDeltaNumber;
inputFrameDelta.resend = FrameSyncConstant.LOCAL_INPUT_FRAME_RESEND_COUNT;
inputFrameDelta.ResetBytes();
_input.ExportInput(inputFrameDelta.bytes);
bool inputChanged = false;
if (previousInputDelta == null)
{
inputChanged = true;
}
else
{
bool sameInput = previousInputDelta.IsSameInput(inputFrameDelta);
inputChanged = !sameInput;
}
if (!inputChanged)
{
SWConsole.Crit("Engine: Input did NOT Change");
_currentLocalInputFrameDeltaNumber--;
}
else
{
SWConsole.Crit("Engine: Input Changed");
}
SendLocalInputs();
}
void SendLocalInputs()
{
if (_localInputFrameDeltaNumberToSend == 0)
{
_localInputFrameDeltaNumberToSend = _currentLocalInputFrameDeltaNumber;
}
_sendLocalInputDeltaBuffer.Reset();
int end = _localInputFrameDeltaNumberToSend + FrameSyncConstant.LOCAL_INPUT_FRAME_RESEND_COUNT;
if (end > _currentLocalInputFrameDeltaNumber)
{
end = _currentLocalInputFrameDeltaNumber;
}
int count = 0;
for (int i = _localInputFrameDeltaNumberToSend; i <= end; i++)
{
InputFrameDelta inputFrameDelta = localInputFrameDeltas[i];
_sendLocalInputDeltaBuffer.Push(inputFrameDelta.frameNumber);
byte length = (byte)inputFrameDelta.bytes.DataLength;
_sendLocalInputDeltaBuffer.Push(length);
_sendLocalInputDeltaBuffer.PushAll(inputFrameDelta.bytes);
count++;
inputFrameDelta.resend = inputFrameDelta.resend - 1;
if (inputFrameDelta.resend == 0)
{
_localInputFrameDeltaNumberToSend++;
}
}
if (count > 0)
{
_io.SendInputFrameDeltas(_sendLocalInputDeltaBuffer, count, _input.Size);
}
}
public void RequestInputFrames(int startFrameNumber, int endFrameNumber)
{
if (startFrameNumber <= endFrameNumber)
{
if (startFrameNumber > 0 && endFrameNumber <= _frameNumber)
{
_largeData.Reset();
for (int i = startFrameNumber; i < endFrameNumber; i++)
{
InputFrameDelta delta = _inputFrameDeltas[i];
if (delta == null)
{
delta = new InputFrameDelta();
delta.frameNumber = 0; //playerFrameNumber
}
delta.Export(_largeData);
}
_handler.HandleInputFramesInBackground(_largeData, startFrameNumber, endFrameNumber);
}
}
}
public void HandleInputFrameInBackground(SWBytes inputFrame, int playerFrameCountOnServer, int roomStep, int playerFrameNumber)
{
lock (FRAME_SYNC_LOCK)
{
SWConsole.Crit($"<<<======Engine: HandleInputFrameInBackground roomStep={roomStep} playerFrameCountOnServer={playerFrameCountOnServer} playerFrameNumber={playerFrameNumber}");
if (_game.gameState == FrameSyncGameState.Stopped)
{
SWConsole.Crit($"Engine: HandleInputFrameInBackground game stopped");
return;
}
_playerFrameCountOnServer = playerFrameCountOnServer;
if (_lastReceivedInputFrameDeltaNumber == 0)
{
int startIndex = roomStep - 10;
if (startIndex < 0)
{
startIndex = 0;
}
InitializeFrames(startIndex);
_lastReceivedInputFrameDeltaNumber = roomStep;
InputFrameDelta firstDelta = new InputFrameDelta(roomStep);
firstDelta.playerFrameNumber = playerFrameNumber;
byte length = inputFrame.PopByte();
SWBytes.Copy(inputFrame, firstDelta.bytes, length);
inputFrameDeltas[roomStep] = firstDelta;
_currentInputFrameNumber = 0; //will be updated in the waiting for room frame state
_currentLocalInputFrameDeltaNumber = 0;
SWConsole.Crit($"Engine: HandleInputFrameInBackground startIndex={startIndex}");
return;
}
InputFrameDelta delta = inputFrameDeltas[roomStep];
if (delta == null)
{
delta = new InputFrameDelta();
inputFrameDeltas[roomStep] = delta;
}
if (delta.frameNumber == roomStep)
{
SWConsole.Crit($"HandleInputFrameInBackground already has {roomStep}");
}
else
{
delta.frameNumber = roomStep;
delta.playerFrameNumber = playerFrameNumber;
SWConsole.Crit($"HandleInputFrameInBackground copy roomStep={roomStep}");// bytes={inputFrame.FullString()}");
byte length = inputFrame.PopByte();
SWBytes.Copy(inputFrame, delta.bytes, length);
}
//SWConsole.Crit($"Engine: HandleInputFrameInBackground roomStep={roomStep} _lastReceivedInputFrameDeltaNumber={_lastReceivedInputFrameDeltaNumber}");
if (roomStep == _lastReceivedInputFrameDeltaNumber + 1)
{
if (_firstFrameReceived == 0)
{ //set firstFrameReceived when we have subsequence room steps
_firstFrameReceived = _lastReceivedInputFrameDeltaNumber;
}
_lastReceivedInputFrameDeltaNumber = roomStep;
//check if there is any more received frames
bool shouldContinue = true;
int nextFrameNumber = roomStep + 1;
while (shouldContinue)
{
InputFrameDelta nextDelta = inputFrameDeltas[nextFrameNumber];
if (nextDelta == null)
{
break;
}
if (nextDelta.frameNumber != nextFrameNumber)
{
break;
}
_lastReceivedInputFrameDeltaNumber = nextFrameNumber;
nextFrameNumber++;
}
}
}
}
internal bool IsSameInput(InputFrameDelta other)
{
return(Util.ByteArrayCompare(bytes.RawData(), other.bytes.RawData()));
}
void DoTick()
{
_frameNumber++;
_sealedFrameNumber = _frameNumber - 10;
if (_sealedFrameNumber < 1)
{
_sealedFrameNumber = 1;
}
if (_receivedInputFrameDeltas.Count > 0)
{
SWConsole.Crit($"MockIO: DoTick playerFrameCount={_receivedInputFrameDeltas.Count}");
InputFrameDelta delta = _receivedInputFrameDeltas.Peek();
if (true)
{
delta = _receivedInputFrameDeltas.Dequeue();
//SWConsole.Crit($"MockIO: DoTick playerFrameCount 1 ={_receivedInputFrameDeltas.Count}");
_inputFrameDeltas[_frameNumber] = delta;
_data.Reset();
byte length = (byte)delta.bytes.DataLength;
_data.Push(length);
_data.PushAll(delta.bytes);
SWConsole.Crit($"MockIO: DoTick send PLAYER={delta.frameNumber} roomStep={_frameNumber}");
MockHandleInputFrameOperaion operation = new MockHandleInputFrameOperaion(_handler, _pingMilliseconds);
operation.inputFrameData = SWBytes.Clone(_data);
operation.playerLastInputFrameOnServer = _receivedInputFrameDeltas.Count;
operation.predictionFrameNumber = _predictedFrameNumber;
operation.correctFrameNumber = _correctFrameNumber;
operation.roomStep = _frameNumber;
operation.sealedFrameNumber = _sealedFrameNumber;
_operationQueue.AddOperation(operation);
return;
}
//else if(delta.predictedServerFrameNumber < _frameNumber)
//{
// delta = _receivedInputFrameDeltas.Dequeue();
// delta.version = 1;
// _inputFrameDeltas[delta.predictedServerFrameNumber] = delta;
// _data.Reset();
// byte length = (byte)delta.bytes.DataLength;
// _data.Push(length);
// _data.Push(delta.bytes, 0);
// SWConsole.Crit($"MockIO: DoTick send PLAYER={delta.frameNumber} roomStep={_frameNumber} prediction={delta.predictedServerFrameNumber}");
// _frameNumber--;
// _sealedFrameNumber = _frameNumber - 10;
// if (_sealedFrameNumber < 1)
// {
// _sealedFrameNumber = 1;
// }
// MockHandleInputFrameOperaion operation = new MockHandleInputFrameOperaion(_handler, _pingMilliseconds);
// operation.inputFrameData = SWBytes.Clone(_data);
// operation.playerLastInputFrameOnServer = _receivedInputFrameDeltas.Count;
// operation.predictionError = _predictionError;
// operation.roomStep = delta.predictedServerFrameNumber;
// operation.version = delta.version;
// operation.sealedFrameNumber = _sealedFrameNumber;
// _operationQueue.AddOperation(operation);
// return;
//}
}
{
_lastPredictedFrameNumber = _frameNumber;
InputFrameDelta delta = new InputFrameDelta();
delta.frameNumber = 0; //playerFrameNumber
_inputFrameDeltas[_frameNumber] = delta;
_data.Reset();
_data.Push((byte)0); //length
SWConsole.Crit($"MockIO: DoTick send EMPTY={delta.frameNumber} roomStep={_frameNumber}");
MockHandleInputFrameOperaion operation = new MockHandleInputFrameOperaion(_handler, _pingMilliseconds);
operation.inputFrameData = SWBytes.Clone(_data);
operation.playerLastInputFrameOnServer = _receivedInputFrameDeltas.Count;
operation.predictionFrameNumber = _predictedFrameNumber;
operation.correctFrameNumber = _correctFrameNumber;
operation.roomStep = _frameNumber;
operation.sealedFrameNumber = _sealedFrameNumber;
_operationQueue.AddOperation(operation);
}
}