Game Dev

Socket in Erlang and C#

Server Code (Client)

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[Serializable]
public class BaseData
{
    public int command;
}

[Serializable]
public class JoinRoom: BaseData
{
    public string id; // user id
    public string room_id;
}

public void Connect()
{
    JoinRoom jr = new JoinRoom()
    {
        command = 1001,
        room_id = "ess33424",
        id = "s15512",
    };
    /** HEAD 可以用来定义服务器的通讯协议版本号或直接用作协议指令。或者同时定义两者 */
    byte[] HEAD = { 131, 107, 0, 5 };
    byte[] BODY = Encoding.UTF8.GetBytes(JsonUtility.ToJson(jr));
    byte[] MESSAGE = new byte[HEAD.Length + BODY.Length];
    SendBytes(MESSAGE);
}


public void SendBytes(byte[] msg)
{
    NetworkStream stream = Client.GetStream();
    stream.Write(msg, 0, msg.Length);
}

Server Code(Erlang)

Sample Code：Erlang Socket Server

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handle_info({inet_async, Sock, Ref, {ok, DataBin}}, State) ->
    io:format("recv: ~p ~n", [DataBin]),
    <<H1:8, H2:8, H:8, H4:8, Rest/binary>> = DataBin,
    io:format("msg: ~p ~n", [Rest]),
    gen_tcp:send(Sock, Rest),
    {noreply, State};