public Room(PeerInfo creator, string roomID, int maxPlayer, List<PeerInfo> connectedPeers)
{
this.creator = creator;
this.roomID = roomID;
this.maxPlayer = maxPlayer;
this.connectedPeers = connectedPeers;
}
public Room(PeerInfo creator, string roomID, int maxPlayer)
{
this.creator = creator;
this.roomID = roomID;
this.maxPlayer = maxPlayer;
this.connectedPeers = new List<PeerInfo>(maxPlayer);
addPlayer(creator);
}
public bool Equals(PeerInfo peer)
{
if ((this.peerID == peer.peerID) && (this.peerIP == peer.peerIP) && (this.port == peer.port))
{
return true;
}
return false;
}
// Copy constructor
public Room(Room room)
{
this.creator = new PeerInfo(room.creator.getIP(), room.creator.getID(), room.creator.getPort(), room.creator.getUsername());
this.roomID = room.roomID;
this.maxPlayer = room.maxPlayer;
this.connectedPeers = new List<PeerInfo>();
foreach (PeerInfo peer in room.connectedPeers)
{
this.connectedPeers.Add(new PeerInfo(peer.getIP(), peer.getID(), peer.getPort(), peer.getUsername()));
}
}
// Concstruct Room Object from ByteArray Data
public Room(byte[] roomByte)
{
int offset = 0;
int roomIDLength = BitConverter.ToInt32(roomByte, offset); offset += 4;
this.roomID = Encoding.ASCII.GetString(roomByte, offset, roomIDLength); offset += roomIDLength;
byte[] creator = new byte[GameConstant.peerInfoSize];
Buffer.BlockCopy(roomByte, offset, creator, 0, GameConstant.peerInfoSize);
this.creator = new PeerInfo(creator);
offset += GameConstant.peerInfoSize;
int maxPlayer = BitConverter.ToInt32(roomByte, offset); offset += GameConstant.maxPlayerSize;
this.maxPlayer = maxPlayer;
int connectedPeersCount = BitConverter.ToInt32(roomByte, offset); offset += 4;
this.connectedPeers = new List<PeerInfo>(connectedPeersCount);
for (int i = 0; i < connectedPeersCount; i++)
{
byte[] peer = new byte[GameConstant.peerInfoSize];
Buffer.BlockCopy(roomByte, offset, peer, 0, GameConstant.peerInfoSize);
offset += GameConstant.peerInfoSize;
this.connectedPeers.Add(new PeerInfo(peer));
}
}
public void addPlayer(PeerInfo newPlayer)
{
connectedPeers.Add(newPlayer);
}
public void setCreator(PeerInfo creator)
{
this.creator = creator;
}
private void dead(object source, ElapsedEventArgs e)
{
tracker.removeDeadPeer(this.info.getID());
this.isAliveTimer.Stop();
this.socket = null; this.info = null; this.isAliveTimer = null; this.tracker = null;
}
public PeerInfo(PeerInfo peer)
{
this.peerIP = peer.peerIP; this.peerID = peer.peerID; this.port = peer.port; this.username = peer.username;
}
public PeerHandler(Socket socket, PeerInfo info, Tracker tracker)
{
this.tracker = tracker;
this.socket = socket;
this.info = info;
this.isAlive = true;
this.isAliveTimer = new System.Timers.Timer(GameConstant.connectionTimeOut);
this.isAliveTimer.Elapsed += new ElapsedEventHandler(dead);
this.isAliveTimer.Start();
}
private void setNewCreator(PeerInfo oldCreator, PeerInfo newCreator)
{
foreach (Room room in roomList)
{
if (room.getCreator().getID() == oldCreator.getID())
{
room.setCreator(new PeerInfo(newCreator));
room.getConnectedPeers().Clear();
room.addPlayer(room.getCreator());
roomTable[room.getRoomID()] = getHandler(room.getCreator());
return;
}
}
}
private void removeRoom(PeerInfo creator)
{
foreach (Room room in roomList)
{
if (room.getCreator().getID() == creator.getID())
{
roomList.Remove(room);
roomTable.Remove(room.getRoomID());
return;
}
}
}
private void onReceive(IAsyncResult ar)
{
try
{
Socket peerSocket = (Socket)ar.AsyncState;
peerSocket.EndReceive(ar);
Message msgReceived = new Message(msgByte);
Message msgResponse = new Message();
string logMsg = String.Empty;
switch (msgReceived.msgType)
{
case MessageType.Handshake:
logMsg = MessageType.Handshake.ToString();
if (peerList.Count < maxPeer)
{
string peerIP = ((IPEndPoint)peerSocket.RemoteEndPoint).Address.ToString();
int peerID = peerInfoPooler.getAvailableID();
int port = peerInfoPooler.getAvailablePort();
PeerInfo peerInfo = new PeerInfo(peerIP, peerID, port, msgReceived.username);
peerList.Add(new PeerHandler(peerSocket, peerInfo, this));
msgResponse = new Message(MessageType.HandshakeResponse, peerInfo);
}
else
{
msgResponse = new Message(MessageType.Failed);
}
break;
case MessageType.KeepAlive:
logMsg = MessageType.KeepAlive.ToString();
msgResponse = new Message(MessageType.KeepAlive, msgReceived.peerID);
PeerHandler handler = getHandler(msgReceived.peerID);
handler.isAlive = true;
handler.isAliveTimer.Stop();
handler.isAliveTimer.Start();
break;
case MessageType.List:
logMsg = MessageType.List.ToString();
msgResponse = new Message(MessageType.Room, roomList);
break;
case MessageType.Create:
logMsg = MessageType.Create.ToString();
if ((roomList.Count < maxRoom) && (!roomTable.ContainsKey(msgReceived.roomID)))
{
PeerInfo creator = getPeerInfo(peerSocket);
this.roomList.Add(new Room(creator, msgReceived.roomID, msgReceived.maxPlayer));
this.roomTable.Add(msgReceived.roomID, getHandler(msgReceived.peerID));
msgResponse = new Message(MessageType.Success);
}
else
{
msgResponse = new Message(MessageType.Failed);
}
break;
case MessageType.Join:
logMsg = MessageType.Join.ToString();
if (roomTable.ContainsKey(msgReceived.roomID))
{
if (!isRoomFull(msgReceived.roomID))
{
msgResponse = new Message(MessageType.JoinSuccess, getRoomByID(msgReceived.roomID));
}
else
{
msgResponse = new Message(MessageType.Failed);
}
}
else
{
msgResponse = new Message(MessageType.Failed);
}
break;
case MessageType.CheckResponse:
logMsg = MessageType.CheckResponse.ToString();
if (msgReceived.isJoinAccepted)
{
Room infoSent = getRoomByCreator(getPeerInfo(peerSocket).getID());
infoSent.getCreator().setPort(msgReceived.port);
msgResponse = new Message(MessageType.JoinSuccess, infoSent);
}
else
msgResponse = new Message(MessageType.Failed);
break;
case MessageType.CreatorQuit:
logMsg = MessageType.CreatorQuit.ToString();
msgResponse = new Message(MessageType.Success);
PeerInfo oldCreator = getPeerInfo(peerSocket);
if (oldCreator.getID() == msgReceived.peer.getID())
{
removeRoom(oldCreator);
}
else
{
setNewCreator(oldCreator, msgReceived.peer);
}
break;
case MessageType.RoomInfo:
logMsg = MessageType.RoomInfo.ToString();
updateRoomInfo(msgReceived.room);
break;
case MessageType.SelfPromoteCreator:
logMsg = MessageType.SelfPromoteCreator.ToString();
setNewCreator(msgReceived.peer, msgReceived.peer2);
break;
}
byte[] message = msgResponse.toByte();
if (msgReceived.msgType == MessageType.CheckResponse)
{
Socket joinSocket = getSocket(msgReceived.peerIDJoinRoom);
if (joinSocket != null)
{
joinSocket.BeginSend(message, 0, message.Length, SocketFlags.None,
new AsyncCallback(onSend), joinSocket);
}
}
else if (msgReceived.msgType != MessageType.RoomInfo)
{
peerSocket.BeginSend(message, 0, message.Length, SocketFlags.None,
new AsyncCallback(onSend), peerSocket);
}
Array.Clear(msgByte, 0, msgByte.Length);
peerSocket.BeginReceive(msgByte, 0, msgByte.Length, SocketFlags.None,
new AsyncCallback(onReceive), peerSocket);
PeerInfo logInfo = getPeerInfo(peerSocket);
if (logMsg == MessageType.KeepAlive.ToString() && !logKeepAlive) { }
else
if (logInfo != null && log)
{
if (logMsg != MessageType.RoomInfo.ToString())
if (logMsg == MessageType.Handshake.ToString())
System.Console.WriteLine("{0} has been connected to tracker", logInfo);
System.Console.WriteLine("{0} : {1}", logInfo, logMsg);
}
}
catch (Exception e)
{
Console.WriteLine("onReceive exception : {0}", e.Message);
Console.WriteLine(e.Source);
Console.WriteLine(e.InnerException);
Console.WriteLine(e.StackTrace);
Console.WriteLine(e.TargetSite);
}
}
private PeerHandler getHandler(PeerInfo peer)
{
foreach (PeerHandler handler in peerList)
{
if (handler.info.getID() == peer.getID())
{
return handler;
}
}
return new PeerHandler();
}
