C++ PacketStream::fromCharArray方法代码示例

void Game::RecieveData()
{
	//********************* recieve data ********************************
	// create a packet stream object for recieving and sending data
	PacketStream PS;

	// now we want to recieve any data
	char recieved[100] = "n"; // set to "n" as a flag that it is unpopulated
	Net::GetInstance()->ReceiveData(recieved);
		
	// if the array has been populated
	if(recieved[0] != 'n')
	{
		// if we recieve any valid data and connectedToPeer is false
		if(!m_connectedToPeer)
		{
			/// we are now connected to a peer
			m_connectedToPeer = true;

			SendStartRace();
		}
		PS.fromCharArray(recieved);
		int e;
		PS.readInt(e);

		while(e != ENDOFMESSAGE)
		{
			switch (e)
			{
				case STATEDATA:
					{
						float x = m_pOtherCar->X();
						float y = m_pOtherCar->Y(); 
						float angle = m_pOtherCar->GetAngleY();
						float directionX = m_pOtherCar->DirectionX();
						float directionY = m_pOtherCar->DirectionY();
						float topSpeed = m_pOtherCar->TopSpeed();
						float speed = m_pOtherCar->Speed();
						float friction = m_pOtherCar->Friction();

						PS.readFloat(x);
						PS.readFloat(y);
						PS.readFloat(angle);
						PS.readFloat(directionX);
						PS.readFloat(directionY);
						PS.readFloat(topSpeed);
						PS.readFloat(speed);
						PS.readFloat(friction);
						
						if(m_packetTransferState == CONSTANT)
						{
							m_pOtherCar->SetX(x);
							m_pOtherCar->SetY(y);
							m_pOtherCar->SetAngleY(angle);
						}
						else
						{			
							// set this first so we can determine if the car should accelerate
							m_otherCarLastSpeed = m_pOtherCar->Speed();
							
							// set positional data of other car

							// we want a smooth movement to the new point
							Vector2 newPos(x,y);

							// get the vector between the new pos and old pos
							Vector2 vector = newPos-m_pOtherCar->Position();

								// if we are a good bit away then snap
								if(vector.Length() > 20)
								{
									  m_pOtherCar->SetX(x);
									  m_pOtherCar->SetY(y);
 
								}
								else if(vector.Length() > 2)
								{
									// normalise to find the direction
									  vector.Normalise();

									  directionX = vector.X;
									  directionY = vector.Y;
								}


							m_pOtherCar->SetAngleY(angle);
							m_pOtherCar->SetDirectionX(directionX);
							m_pOtherCar->SetDirectionY(directionY);
							m_pOtherCar->SetTopSpeed(topSpeed);
							m_pOtherCar->SetSpeed(speed);
							m_pOtherCar->SetFriction(friction);

						}
					}
					break;

				case FINISHEDRACE:
					  {
						  // the race is over
						  m_raceFinished = true;
//.........这里部分代码省略.........