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using System;
using Unity.Services.Relay.Models;
using UnityEngine;
using LobbyRelaySample.relay;
namespace LobbyRelaySample.ngo
{
/*
* To use Netcode for GameObjects (NGO), we use the Relay adapter for UTP, attached to a NetworkManager. This needs to be provided the Allocation info before we bind to it.
* In actual use, if you are using NGO for your game's networking, you would not also use the RelayUtpSetupHost/RelayUtpSetupClient at all, since their direct data transmission would be unnecessary.
* We keep both versions for this sample to demonstrate how each is set up, whether you want to just use Lobby + Relay or use NGO as well.
*/
/// <summary>
/// Host logic: Request a new Allocation, and then pass its info to the UTP adapter for NGO.
/// </summary>
public class RelayUtpNGOSetupHost : MonoBehaviour // This is a MonoBehaviour so that it can be added to the InGameRunner object for easier cleanup on game end.
{
private SetupInGame m_setupInGame;
private LocalLobby m_localLobby;
private Action m_onJoin;
public void Initialize(SetupInGame setupInGame, LocalLobby lobby, Action onJoin)
{
m_setupInGame = setupInGame;
m_localLobby = lobby;
m_onJoin = onJoin;
RelayAPIInterface.AllocateAsync(m_localLobby.MaxPlayerCount, OnAllocation);
}
private void OnAllocation(Allocation allocation)
{
RelayAPIInterface.GetJoinCodeAsync(allocation.AllocationId, OnRelayCode);
bool isSecure = false;
var endpoint = RelayUtpSetup.GetEndpointForAllocation(allocation.ServerEndpoints, out isSecure);
m_setupInGame.SetRelayServerData(RelayUtpSetup.AddressFromEndpoint(endpoint), endpoint.Port, allocation.AllocationIdBytes, allocation.Key, allocation.ConnectionData, allocation.ConnectionData, isSecure);
m_onJoin?.Invoke();
}
private void OnRelayCode(string relayCode)
{
m_localLobby.RelayNGOCode = relayCode;
}
}
/// <summary>
/// Client logic: Wait to receive the Relay code for NGO, and then pass the allocation info to the UTP adapter.
/// </summary>
public class RelayUtpNGOSetupClient : MonoBehaviour // This is also a MonoBehaviour for access to OnDestroy, to ensure unsubscription from the local lobby on game end.
{
private SetupInGame m_setupInGame;
private LocalLobby m_localLobby;
private Action m_onJoin;
public void Initialize(SetupInGame setupInGame, LocalLobby lobby, Action onJoin)
{
m_setupInGame = setupInGame;
m_localLobby = lobby;
m_onJoin = onJoin;
m_localLobby.onChanged += OnLobbyChange;
}
public void OnDestroy()
{
m_localLobby.onChanged -= OnLobbyChange;
}
private void OnLobbyChange(LocalLobby lobby)
{
if (m_localLobby.RelayNGOCode != null)
{
RelayAPIInterface.JoinAsync(m_localLobby.RelayNGOCode, OnJoin);
m_localLobby.onChanged -= OnLobbyChange;
}
}
private void OnJoin(JoinAllocation joinAllocation)
{
if (joinAllocation == null || this == null) // The returned JoinAllocation is null if allocation failed. This would be destroyed already if you quit the lobby while Relay is connecting.
return;
bool isSecure = false;
var endpoint = RelayUtpSetup.GetEndpointForAllocation(joinAllocation.ServerEndpoints, out isSecure);
m_setupInGame.SetRelayServerData(RelayUtpSetup.AddressFromEndpoint(endpoint), endpoint.Port, joinAllocation.AllocationIdBytes, joinAllocation.Key, joinAllocation.ConnectionData, joinAllocation.HostConnectionData, isSecure);
m_onJoin?.Invoke();
}
}
}