private void HandleHandshake(Message message)
{
var handshakeCommand = serializer.Deserialize <HandshakeCommand>(message.MessageString);
var handshakeMessage = new HandshakeMessage
{
you = handshakeCommand.me
};
Log($"Reply to handshake from {handshakeCommand.me}");
message.Reply(serializer.Serialize(handshakeMessage));
var id = session.Clients.Count;
var connection = new PlayerConnection(tcpClient: message.TcpClient,
name: handshakeCommand.me + " " + id,
id: id);
session.Clients.Add(connection);
Log($"{session.Clients.Count}/{session.PlayersCount} players handshook");
if (session.Clients.Count == session.PlayersCount)
{
tcpServer.DataReceived -= TcpServer_DataReceived;
Log("All players handshook. Gonna setup.");
Setup();
}
}
/*================================================================
* Author : Segal Au
*
* Date : April 9, 2019
*
* Function: SendHeartBeat
*
* Params :
* Object source
* - object source
* ElapsedEventArgs e
* - event arguments
* UDPSocket Socket
* - Socket to send heart beat Packet
* State state
* - Game state and client manager
*
* Purpose :
* Sends heart beat packet function (triggered by timer).
*
* =================================================================*/
private static void SendHeartBeat(Object source, ElapsedEventArgs e, UDPSocket socket, State state)
{
List <UpdateElement> unreliable = new List <UpdateElement> ();
List <UpdateElement> reliable = new List <UpdateElement> ();
Console.WriteLine("Count current connections {0}", state.ClientManager.CountCurrConnections);
List <LobbyStatusElement.PlayerInfo> listPI = new List <LobbyStatusElement.PlayerInfo> ();
try {
for (int i = 0; i < state.ClientManager.CountCurrConnections; i++)
{
if (state.ClientManager.Connections [i] == null)
{
continue;
}
Console.WriteLine("Creating LobbyInfo packet");
PlayerConnection client = state.ClientManager.Connections [i];
listPI.Add(new LobbyStatusElement.PlayerInfo(client.ActorId, client.Name, client.Team, client.Ready));
}
for (int i = 0; i < state.ClientManager.CountCurrConnections; i++)
{
if (state.ClientManager.Connections [i] == null)
{
continue;
}
Console.WriteLine("Sending Lobby update to client");
PlayerConnection client = state.ClientManager.Connections [i];
if (client.Disconnected())
{
state.ClientManager.Connections [i] = null;
}
unreliable.Add(new LobbyStatusElement(listPI));
Packet startPacket = client.Connection.CreatePacket(unreliable, reliable, PacketType.HeartbeatPacket);
socket.Send(startPacket, client.Destination);
Console.WriteLine("Sent lobby update to client");
}
} catch (Exception ex) {
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
/// ----------------------------------------------
/// FUNCTION: LobbyState
///
/// DATE: April 2 , 2019
///
/// REVISIONS:
///
/// DESIGNER: Cameron Roberts, Kieran Lee
///
/// PROGRAMMER: Cameron Roberts, Kieran Lee, Segal Au
///
/// INTERFACE: private static void LobbyState (UDPSocket socket, State state, ServerStateMessageBridge bridge)
/// socket: socket to send and receive from
/// state: gives access to client manager
/// ServerStateMessageBridge: allows packets to be processed properly
///
/// RETURNS: void
///
/// NOTES: function that server remains in until lobyy is left and game is started.
/// Expect request packets and hearbeat packets, discard all else.
/// waits until all players are ready, then sends start game message.
/// does not move to game state until all clients have started sending game packets
/// ----------------------------------------------
private static void LobbyState(UDPSocket socket, State state, ServerStateMessageBridge bridge)
{
StartHeartBeat(socket, state);
while (state.TimesEndGameSent < 80)
{
Packet packet;
try {
Console.WriteLine("Waiting for packet in lobby state");
packet = socket.Receive();
} catch (TimeoutException e) {
Console.WriteLine("Timeout");
continue;
}
switch (ReliableUDPConnection.GetPacketType(packet))
{
case PacketType.HeartbeatPacket:
Console.WriteLine("Got heartbeat packet");
int clientId = ReliableUDPConnection.GetPlayerID(packet);
state.ClientManager.Connections [clientId].MarkPacketReceive();
if (state.ClientManager.Connections [clientId] == null)
{
continue;
}
UnpackedPacket unpacked = state.ClientManager.Connections [clientId].Connection.ProcessPacket(packet, lobbyUnpackingArr);
foreach (var element in unpacked.UnreliableElements)
{
element.UpdateState(bridge);
}
foreach (var element in unpacked.ReliableElements)
{
element.UpdateState(bridge);
}
break;
case PacketType.RequestPacket:
Console.WriteLine("Got request packet");
try {
string name = ReliableUDPConnection.GetClientNameFromRequestPacket(packet);
int newClient = state.ClientManager.AddConnection(socket.LastReceivedFrom, name);
socket.Send(ReliableUDPConnection.CreateConfirmationPacket(newClient), state.ClientManager.Connections [newClient].Destination);
Console.WriteLine("Sent confirmation packet to client " + newClient + " with name " + state.ClientManager.Connections [newClient].Name);
} catch (OutOfMemoryException e) {
}
break;
default:
Log.V("Got unexpected packet type, discarding");
break;
}
Console.WriteLine("Checking if all players ready");
//TODO If all players ready start game send start packet and go to gamestate.
Log.V("Checking if all players are ready");
bool allReady = state.ClientManager.CountCurrConnections > 0;
for (int i = 0; i < state.ClientManager.CountCurrConnections; i++)
{
if (state.ClientManager.Connections [i] == null)
{
continue;
}
PlayerConnection client = state.ClientManager.Connections [i];
Log.V("Client " + i + ", " + client.Ready);
allReady &= client.Ready; //bitwise operater to check that every connection is ready
}
Log.V("Current connections " + state.ClientManager.CountCurrConnections);
if (allReady)
{
Log.D("All are ready sending startgame packet");
List <UpdateElement> unreliableElements = new List <UpdateElement> ();
List <UpdateElement> reliableElements = new List <UpdateElement> ();
int players = 0;
for (int i = 0; i < state.ClientManager.CountCurrConnections; i++)
{
if (state.ClientManager.Connections [i] == null)
{
continue;
}
state.ClientManager.Connections [i].ActorId = state.GameState.AddPlayer(state.ClientManager.Connections [i].Team);
players++;
}
reliableElements.Add(new GameStartElement(players));
var playerInfo = new List <LobbyStatusElement.PlayerInfo> ();
for (int i = 0; i < state.ClientManager.CountCurrConnections; i++)
{
if (state.ClientManager.Connections [i] == null)
{
continue;
}
playerInfo.Add(new LobbyStatusElement.PlayerInfo(state.ClientManager.Connections [i].ClientId,
state.ClientManager.Connections [i].Name,
state.ClientManager.Connections [i].Team,
state.ClientManager.Connections [i].Ready));
}
unreliableElements.Add(new LobbyStatusElement(playerInfo));
for (int i = 0; i < state.ClientManager.CountCurrConnections; i++)
{
if (state.ClientManager.Connections [i] == null)
{
continue;
}
PlayerConnection client = state.ClientManager.Connections [i];
Packet startPacket = client.Connection.CreatePacket(unreliableElements, reliableElements, PacketType.HeartbeatPacket);
socket.Send(startPacket, client.Destination);
}
//wait for each client to start sending gameplay packets, which indicates
//that each client has received the gamestart Message
bool allSendGame = false;
int playerId;
while (!allSendGame)
{
try{
packet = socket.Receive();
switch (ReliableUDPConnection.GetPacketType(packet))
{
case PacketType.GameplayPacket:
playerId = ReliableUDPConnection.GetPlayerID(packet);
state.ClientManager.FindClientByActorId(playerId).startedGame = true;
allSendGame = true;
Console.WriteLine("Received packet from {0}", playerId);
for (int i = 0; i < state.ClientManager.CountCurrConnections; i++)
{
if (state.ClientManager.Connections [i] == null)
{
continue;
}
PlayerConnection client = state.ClientManager.Connections [i];
Console.WriteLine("Client {0}, {1} sent a game packet while server in lobby", i, client.startedGame);
allSendGame &= client.startedGame; //bitwise operater to check that every connection is ready
}
break;
default:
break;
}
} catch (TimeoutException e) {
continue;
}
}
sendHeartBeatPing.Enabled = false;
GameState(socket, state, bridge);
return;
}
else
{
Log.V("All players not ready");
}
}
}