/// <summary>
/// 对网络消息进行编码
/// </summary>
/// <param name="netMsg">生成的消息</param>
/// <returns>是否编码成功</returns>
public bool EncodeMessage(ref UdpNetMessage netMsg)
{
netMsg.TS = Utility.Time.MillisecondTimeStamp();
if (netMsg.HeaderCode != UdpHeader.Hearbeat)
{
SendSN += 1;
netMsg.SN = SendSN;
}
bool result = true;
if (Conv != 0)
{
try
{
if (netMsg.Cmd == UdpProtocol.MSG)
{
sndMsgDict.TryAdd(netMsg.SN, netMsg);
}
}
catch (Exception e)
{
Utility.Debug.LogError(e);
}
//若会话ID不为0，则缓存入ACK容器中，等接收成功后进行移除
///* result=*/ ackMsgDict.TryAdd(netMsg.SN, netMsg);
}
return(result);
}
/// <summary>
/// 处理报文序号
/// </summary>
/// <param name="netMsg">网络消息</param>
protected void HandleMsgSN(UdpNetMessage netMsg)
{
//sn小于当前处理HandleSN则表示已经处理过的消息；
if (netMsg.SN <= HandleSN)
{
return;
}
if (netMsg.SN - HandleSN > 1)
{
//对错序报文进行缓存
rcvMsgDict.TryAdd(netMsg.SN, netMsg);
}
HandleSN = netMsg.SN;
#if DEBUG
Utility.Debug.LogWarning($"Peer Conv:{Conv}， HandleMsgSN : {netMsg.ToString()}");
#endif
if (netMsg.HeaderCode == UdpHeader.Message)
{
onReceiveDataHandler?.Invoke(Conv, new ArraySegment <byte>(netMsg.ServiceData));
}
if (rcvMsgDict.TryRemove(HandleSN + 1, out var nxtNetMsg))
{
#if DEBUG
Utility.Debug.LogInfo($"HandleMsgSN Next KCP_MSG : {netMsg.ToString()}");
#endif
HandleMsgSN(nxtNetMsg);
}
}
/// <summary>
/// 处理进入这个peer的消息
/// </summary>
/// <param name="service">udp服务</param>
/// <param name="msg">消息体</param>
public virtual void MessageHandler(INetworkMessage msg)
{
UdpNetMessage netMsg = msg as UdpNetMessage;
switch (netMsg.Cmd)
{
//ACK报文
case UdpProtocol.ACK:
{
UdpNetMessage tmpMsg;
if (sndMsgDict.TryRemove(netMsg.SN, out tmpMsg))
{
#if DEBUG
Utility.Debug.LogInfo($" Conv :{Conv}，Receive KCP_ACK Message");
#endif
CosmosEntry.ReferencePoolManager.Despawn(tmpMsg);
}
else
{
#if DEBUG
if (netMsg.Conv != 0)
{
Utility.Debug.LogError($"Receive KCP_ACK Message Exception；SN : {netMsg.SN} ");
}
#endif
}
}
break;
case UdpProtocol.MSG:
{
#if DEBUG
Utility.Debug.LogInfo($"Conv : {Conv} ,Receive KCP_MSG ：{netMsg},消息体:{Utility.Converter.GetString(netMsg.ServiceData)}");
#endif
//生成一个ACK报文，并返回发送
var ack = UdpNetMessage.ConvertToACK(netMsg);
//这里需要发送ACK报文
sendMessageHandler?.Invoke(ack);
if (netMsg.HeaderCode == UdpHeader.Hearbeat)
{
Heartbeat.OnRenewal();
#if DEBUG
Utility.Debug.LogInfo($" Send KCP_ACK Message，conv :{Conv} ; {PeerEndPoint.Address} ;{PeerEndPoint.Port}");
#endif
}
else
{
//发送后进行原始报文数据的处理
HandleMsgSN(netMsg);
}
}
break;
case UdpProtocol.SYN:
{
//建立连接标志
Utility.Debug.LogInfo($"Conv : {netMsg.Conv} ,Receive KCP_SYN Message");
//生成一个ACK报文，并返回发送
var ack = UdpNetMessage.ConvertToACK(netMsg);
//这里需要发送ACK报文
sendMessageHandler?.Invoke(ack);
}
break;
case UdpProtocol.FIN:
{
//结束建立连接Cmd，这里需要谨慎考虑；
Utility.Debug.LogError($"Conv : {Conv} ,Receive KCP_FIN Message");
var ack = UdpNetMessage.ConvertToACK(netMsg);
//这里需要发送ACK报文
sendMessageHandler?.Invoke(ack);
AbortConnection();
}
break;
}
}