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using System.Collections.Generic;
using UnityEngine;
using Stopwatch = System.Diagnostics.Stopwatch;
namespace LobbyRelaySample
{
/// <summary>
/// Ensure that message contents are obvious but not dependent on spelling strings correctly.
/// </summary>
public enum MessageType
{
// These are assigned arbitrary explicit values so that if a MessageType is serialized and more enum values are later inserted/removed, the serialized values need not be reassigned.
// (If you want to remove a message, make sure it isn't serialized somewhere first.)
None = 0,
RenameRequest = 1,
JoinLobbyRequest = 2,
CreateLobbyRequest = 3,
QueryLobbies = 4,
PlayerJoinedLobby = 5,
PlayerLeftLobby = 6,
ChangeGameState = 7,
ChangeLobbyUserState = 8,
HostInitReadyCheck = 9,
LocalUserReadyCheckResponse = 10,
UserSetEmote = 11,
ToLobby = 12,
Client_EndReadyCountdownAt = 13,
}
/// <summary>
/// Something that wants to subscribe to messages from arbitrary, unknown senders.
/// </summary>
public interface IReceiveMessages
{
void OnReceiveMessage(MessageType type, object msg);
}
/// <summary>
/// Something to which IReceiveMessages can send/subscribe for arbitrary messages.
/// </summary>
public interface IMessenger : IReceiveMessages, IProvidable<IMessenger>
{
void Subscribe(IReceiveMessages receiver);
void Unsubscribe(IReceiveMessages receiver);
}
/// <summary>
/// Core mechanism for routing messages to arbitrary listeners.
/// </summary>
public class Messenger : IMessenger
{
private List<IReceiveMessages> m_receivers = new List<IReceiveMessages>();
private const float k_durationToleranceMs = 10;
/// <summary>
/// Assume that you won't receive messages in a specific order.
/// </summary>
public virtual void Subscribe(IReceiveMessages receiver)
{
if (!m_receivers.Contains(receiver))
m_receivers.Add(receiver);
}
public virtual void Unsubscribe(IReceiveMessages receiver)
{
m_receivers.Remove(receiver);
}
public virtual void OnReceiveMessage(MessageType type, object msg)
{
Stopwatch stopwatch = new Stopwatch();
for (int r = 0; r < m_receivers.Count; r++)
{
stopwatch.Restart();
m_receivers[r].OnReceiveMessage(type, msg);
stopwatch.Stop();
if (stopwatch.ElapsedMilliseconds > k_durationToleranceMs)
Debug.LogWarning($"Message recipient \"{m_receivers[r]}\" took too long to process message \"{msg}\" of type {type}");
}
}
public void OnReProvided(IMessenger previousProvider)
{
if (previousProvider is Messenger)
m_receivers.AddRange((previousProvider as Messenger).m_receivers);
}
}
}