void Update()
{
//---------------------------------------------------------------------------------
//CURRENT STATE: WAIT FOR THE USER TO ENTER NETWORK CONFIGURATION INFO
//---------------------------------------------------------------------------------
if (servAuto.CurrState == PongServerAutomaton.WAIT_USER_ENTER_CONFIG_INFO)
{
//if the user enters the network config info
if (ConfigInfoSubmitted)
{
//enact transition to the next state
servAuto.Transition(PongServerAutomaton.WAIT_CONNECTION_ESTABLISHED);
}
}
//---------------------------------------------------------------------------------
//CURRENT STATE: WAIT FOR ESTABLISHED CONNECTION WITH CLIENT(S)
//---------------------------------------------------------------------------------
else if (servAuto.CurrState == PongServerAutomaton.WAIT_CONNECTION_ESTABLISHED)
{
EnvState envState = GeneralUtils.GetEnvState();
string message = "EnvState," + envState.ToJsonString();
StreamData dataToSend = new StreamData(message);
//initiate first connection
serverSocket1 = new ServerSocket(NetUtils.GetClientPort1(), 1, NetUtils.GetIP());
serverSocket1.start();
serverSocket1.sendData(serverSocket1.Client, dataToSend);
//if there are two clients
if (NetUtils.GetNumClients() > 1)
{
//initialize second connection
serverSocket2 = new ServerSocket(NetUtils.GetClientPort2(), 1, NetUtils.GetIP());
serverSocket2.start();
serverSocket2.sendData(serverSocket2.Client, dataToSend);
}
//announce that all clients are connected
NetUtils.AnnounceAllClientsConnected();
//enact transition to the next state
servAuto.Transition(PongServerAutomaton.WAIT_INIT_ACK_FROM_CLIENT);
}
//---------------------------------------------------------------------------------
//CURRENT STATE: WAIT FOR INIT ACKNOWLEDGE FROM THE CLIENT
//---------------------------------------------------------------------------------
else if (servAuto.CurrState == PongServerAutomaton.WAIT_INIT_ACK_FROM_CLIENT)
{
//create a dummy object for receiving data
StreamData dummy = new StreamData("00:00:00");
//get data from client 1
if (!recvdInitClient1 && serverSocket1.pollAndReceiveData(serverSocket1.Client, dummy, 10) >= 1)
{
//respond with the environment data
extraInfo = ballHitEvent ? "ballHit" : "NULL";
if (NetUtils.GetNumClients() == 1)
{
ballHitEvent = false; //reset flag
}
EnvState envState = GeneralUtils.GetEnvState(extraInfo);
string message = "EnvState," + envState.ToJsonString();
StreamData dataToSend = new StreamData(message);
serverSocket1.sendData(serverSocket1.Client, dataToSend);
recvdInitClient1 = true;
}
//get data from second client if applicable
if (NetUtils.GetNumClients() > 1)
{
//get data from client 2
if (!recvdInitClient2 && serverSocket2.pollAndReceiveData(serverSocket2.Client, dummy, 10) >= 1)
{
//respond with the environment data
extraInfo = ballHitEvent ? "ballHit" : "NULL";
ballHitEvent = false; //reset flag
EnvState envState = GeneralUtils.GetEnvState(extraInfo);
string message = "EnvState," + envState.ToJsonString();
StreamData dataToSend = new StreamData(message);
serverSocket2.sendData(serverSocket2.Client, dataToSend);
recvdInitClient2 = true;
}
}
//if using two clients and both clients are connected
if (NetUtils.GetNumClients() > 1 && (recvdInitClient1 && recvdInitClient2))
{
//enact transition to the next state
servAuto.Transition(PongServerAutomaton.NORMAL_COMMUNICATION);
}
//if only using one client and it is connected
else if (NetUtils.GetNumClients() == 1 && recvdInitClient1)
{
//enact transition to the next state
servAuto.Transition(PongServerAutomaton.NORMAL_COMMUNICATION);
}
}
//---------------------------------------------------------------------------------
//CURRENT STATE: NORMAL COMMUNICATION WITH THE CLIENT
//---------------------------------------------------------------------------------
else if (servAuto.CurrState == PongServerAutomaton.NORMAL_COMMUNICATION)
{
StreamData recvdData = new StreamData("00:00:00");
//check to see if some data is ready from client 1
if (serverSocket1.pollAndReceiveData(serverSocket1.Client, recvdData, 10) >= 1)
{
//increment packet count
recvdPackets += 1;
//respond with the environment data
extraInfo = ballHitEvent ? "ballHit" : "NULL";
if (NetUtils.GetNumClients() == 1)
{
ballHitEvent = false; //reset flag
}
EnvState envState = GeneralUtils.GetEnvState(extraInfo);
string message = "EnvState," + envState.ToJsonString();
StreamData dataToSend = new StreamData(message);
serverSocket1.sendData(serverSocket1.Client, dataToSend);
//extract the json message from the received data
string jsonString = recvdData.timeStamp.Substring(recvdData.timeStamp.IndexOf(",") + 1);
inputData = JsonConvert.DeserializeObject <InputData>(jsonString);
GeneralUtils.StoreHumanInput(inputData, GeneralUtils.PONG_CLIENT1_ID);
}
//get data from second client if applicable
if (NetUtils.GetNumClients() > 1)
{
//check to see if some data is ready from client 2
if (serverSocket2.pollAndReceiveData(serverSocket2.Client, recvdData, 10) >= 1)
{
//respond with the environment data
extraInfo = ballHitEvent ? "ballHit" : "NULL";
ballHitEvent = false; //reset flag
EnvState envState = GeneralUtils.GetEnvState(extraInfo);
string message = "EnvState," + envState.ToJsonString();
StreamData dataToSend = new StreamData(message);
serverSocket2.sendData(serverSocket2.Client, dataToSend);
//extract the json message from the received data
string jsonString = recvdData.timeStamp.Substring(recvdData.timeStamp.IndexOf(",") + 1);
inputData = JsonConvert.DeserializeObject <InputData>(jsonString);
GeneralUtils.StoreHumanInput(inputData, GeneralUtils.PONG_CLIENT2_ID);
}
}
//apply changes to human paddle(s)
GeneralUtils.ApplyHumanPaddleChanges();
//if connection is lost
if (!serverSocket1.Connected)
{
//enact transition to the next state
servAuto.Transition(PongServerAutomaton.ERROR_STATE);
}
}
//---------------------------------------------------------------------------------
//CURRENT STATE: ERROR OCCURRED
//---------------------------------------------------------------------------------
else if (servAuto.CurrState == PongServerAutomaton.ERROR_STATE)
{
}
}