/// <summary>
/// Queues a packet to be sent.
/// </summary>
/// <param name="channelId">Destination channel Id</param>
/// <param name="packet">Packet to be queued</param>
/// <remarks>
/// This method will destroy the packet if its <see cref="ENetPacket.ReferenceCount"/> is zero
/// </remarks>
public void Send(byte channelId, ENetPacket packet)
{
ThrowIfNull();
if (packet.IsNull)
{
throw new ArgumentNullException(nameof(packet));
}
if (LibENet.PeerSend(m_Native, channelId, packet.GetNativePointer()) < 0)
{
ThrowHelper.ThrowENetPeerSendFailed();
}
}
public bool Receive(out ENetPacket packet)
{
byte channel = 0;
Native.ENetPacket *native = LibENet.PeerReceive(Unsafe, &channel);
if (((IntPtr)native) == IntPtr.Zero)
{
packet = null;
return(false);
}
packet = new ENetPacket(native, channel);
LibENet.PacketDestroy(native);
return(true);
}
/// <summary>
/// Attempts to dequeue any incoming queued packet.
/// </summary>
/// <param name="packet">Received packet if return value is true</param>
/// <param name="channelId">Receiver channel if return value is true</param>
/// <returns>Return true if packet received otherwise false</returns>
public bool TryReceive(out ENetPacket packet, out byte channelId)
{
ThrowIfNull();
byte chnl = 0;
var resultPacket = LibENet.PeerReceive(m_Native, &chnl);
if (resultPacket == null)
{
channelId = 0;
packet = default;
return(false);
}
else
{
channelId = chnl;
packet = new ENetPacket(resultPacket);
return(true);
}
}
public unsafe ENetEvent(NativeENetEvent native)
{
Type = native.Type;
ChannelId = native.ChannelID;
Data = native.Data;
if (native.Peer != null)
{
Peer = new ENetPeer(native.Peer);
}
else
{
Peer = default;
}
if (native.Packet != null)
{
Packet = new ENetPacket(native.Packet);
}
else
{
Packet = default;
}
}
internal void RaiseReceiveEvent(ENetPacket packet) => OnReceive?.Invoke(this, packet);
/// <summary>
/// An extension method for clearing the user-data.
/// </summary>
/// <param name="packet">The packet that holds the user-data.</param>
public static void UnsetUserData(this ENetPacket packet)
{
var native = packet.GetNativePointer();
UnsetUserData(ref native->UserData);
}
/// <summary>
/// Tries to retrieve user-data from <see cref="ENetPeer"/> of given type.
/// </summary>
/// <typeparam name="TData">The data type.</typeparam>
/// <param name="packet">The packet that holds the user-data.</param>
/// <param name="data">The result user-data.</param>
/// <returns>Returns true if the user-data found; otherwise false.</returns>
/// <remarks>
/// If the data type differs from what was supplied to <see cref="SetUserData{TData}(ENetPacket, TData)"/> then return value becomes false.
/// </remarks>
public static bool TryGetUserData <TData>(this ENetPacket packet, out TData data)
{
var native = packet.GetNativePointer();
return(TryGetUserData(native->UserData, out data));
}
/// <summary>
/// Sets or overwrites the user-data of the given packet.
/// </summary>
/// <typeparam name="TData">The user-data type.</typeparam>
/// <param name="packet">The packet to store user-data into it's <see cref="ENetPacket.UserData"/> field.</param>
/// <param name="data">The user-data.</param>
public static void SetUserData <TData>(this ENetPacket packet, TData data)
{
var native = packet.GetNativePointer();
SetUserData(ref native->UserData, data);
}
