PacketPeer implementation using the ENet library.
    public class NetworkedMultiplayerENet : NetworkedMultiplayerPeer

A PacketPeer implementation that should be passed to SceneTree.NetworkPeer after being initialized as either a client or server. Events can then be handled by connecting to SceneTree signals.

Inheritance Chain


    public NetworkedMultiplayerENet()


    public bool AlwaysOrdered { get; set; }

Always use TRANSFER_MODE_ORDERED in place of TRANSFER_MODE_UNRELIABLE. This is the only way to use ordering with the RPC system.

    public int ChannelCount { get; set; }

The number of channels to be used by ENet. Default: 3. Channels are used to separate different kinds of data. In realiable or ordered mode, for example, the packet delivery order is ensured on a per channel basis.

    public CompressionModeEnum CompressionMode { get; set; }

The compression method used for network packets. Default is no compression. These have different tradeoffs of compression speed versus bandwidth, you may need to test which one works best for your use case if you use compression at all.

    public int TransferChannel { get; set; }

Set the default channel to be used to transfer data. By default this value is -1 which means that ENet will only use 2 channels, one for reliable and one for unreliable packets. Channel 0 is reserved, and cannot be used. Setting this member to any value between 0 and ChannelCount (excluded) will force ENet to use that channel for sending data.


    public void CloseConnection(int waitUsec = 100)

Closes the connection. Ignored if no connection is currently established. If this is a server it tries to notify all clients before forcibly disconnecting them. If this is a client it simply closes the connection to the server.

    public Error CreateClient(string address, int port, int inBandwidth = 0, int outBandwidth = 0, int clientPort = 0)

Create client that connects to a server at address using specified port. The given address needs to be either a fully qualified domain name (e.g. or an IP address in IPv4 or IPv6 format (e.g. The port is the port the server is listening on. The inBandwidth and outBandwidth parameters can be used to limit the incoming and outgoing bandwidth to the given number of bytes per second. The default of 0 means unlimited bandwidth. Note that ENet will strategically drop packets on specific sides of a connection between peers to ensure the peer’s bandwidth is not overwhelmed. The bandwidth parameters also determine the window size of a connection which limits the amount of reliable packets that may be in transit at any given time. Returns OK if a client was created, ERR_ALREADY_IN_USE if this NetworkedMultiplayerEnet instance already has an open connection (in which case you need to call CloseConnection(int) first) or ERR_CANT_CREATE if the client could not be created. If clientPort is specified, the client will also listen to the given port, this is useful in some NAT traversal technique.

    public Error CreateServer(int port, int maxClients = 32, int inBandwidth = 0, int outBandwidth = 0)

Create server that listens to connections via port. The port needs to be an available, unused port between 0 and 65535. Note that ports below 1024 are privileged and may require elevated permissions depending on the platform. To change the interface the server listens on, use SetBindIp(string). The default IP is the wildcard *, which listens on all available interfaces. maxClients is the maximum number of clients that are allowed at once, any number up to 4096 may be used, although the achievable number of simultaneous clients may be far lower and depends on the application. For additional details on the bandwidth parameters, see CreateClient(string, int, int, int, int). Returns OK if a server was created, ERR_ALREADY_IN_USE if this NetworkedMultiplayerEnet instance already has an open connection (in which case you need to call CloseConnection(int) first) or ERR_CANT_CREATE if the server could not be created.

    public void DisconnectPeer(int id, bool now = false)

Disconnect the given peer. If “now” is set to true, the connection will be closed immediately without flushing queued messages.

    public int GetChannelCount()

Getter for ChannelCount

    public CompressionModeEnum GetCompressionMode()

Getter for CompressionMode

    public int GetLastPacketChannel()

Returns the channel of the last packet fetched via PacketPeer.GetPacket()

    public int GetPacketChannel()

Returns the channel of the next packet that will be retrieved via PacketPeer.GetPacket()

    public string GetPeerAddress(int id)

Returns the IP address of the given peer.

    public int GetPeerPort(int id)

Returns the remote port of the given peer.

    public int GetTransferChannel()

Getter for TransferChannel

    public bool IsAlwaysOrdered()

Getter for AlwaysOrdered

    public void SetAlwaysOrdered(bool ordered)

Setter for AlwaysOrdered

    public void SetBindIp(string ip)

The IP used when creating a server. This is set to the wildcard * by default, which binds to all available interfaces. The given IP needs to be in IPv4 or IPv6 address format, for example:

    public void SetChannelCount(int channels)

Setter for ChannelCount

    public void SetCompressionMode(CompressionModeEnum mode)

Setter for CompressionMode

    public void SetTransferChannel(int channel)

Setter for TransferChannel

Inner Types


Name Value Description
None 0 No compression.
RangeCoder 1 ENet’s buildin range encoding.
Fastlz 2 FastLZ compression.
Zlib 3 zlib compression.
Zstd 4 ZStandard compression.