877 lines
36 KiB
C#
877 lines
36 KiB
C#
using FishNet.Connection;
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using FishNet.Managing.Logging;
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using FishNet.Managing.Object;
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using FishNet.Managing.Timing;
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using FishNet.Object;
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using FishNet.Serializing;
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using FishNet.Transporting;
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using FishNet.Utility;
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using FishNet.Utility.Extension;
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using FishNet.Utility.Performance;
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using System;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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using UnityEngine;
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using UnityEngine.SceneManagement;
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namespace FishNet.Managing.Server
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{
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/// <summary>
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/// Handles objects and information about objects for the server. See ManagedObjects for inherited options.
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/// </summary>
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public partial class ServerObjects : ManagedObjects
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{
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#region Public.
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/// <summary>
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/// Called right before client objects are destroyed when a client disconnects.
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/// </summary>
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public event Action<NetworkConnection> OnPreDestroyClientObjects;
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#endregion
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#region Internal.
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/// <summary>
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/// Collection of NetworkObjects recently despawned.
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/// Key: objectId.
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/// Value: despawn tick.
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/// This is used primarily to track if client is sending messages for recently despawned objects.
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/// Objects are automatically removed after RECENTLY_DESPAWNED_DURATION seconds.
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/// </summary>
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internal Dictionary<int, uint> RecentlyDespawnedIds = new Dictionary<int, uint>();
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#endregion
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#region Private.
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/// <summary>
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/// Cached ObjectIds which may be used when exceeding available ObjectIds.
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/// </summary>
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private Queue<int> _objectIdCache = new Queue<int>();
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/// <summary>
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/// Returns the ObjectId cache.
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/// </summary>
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/// <returns></returns>
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internal Queue<int> GetObjectIdCache() => _objectIdCache;
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/// <summary>
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/// NetworkBehaviours which have dirty SyncVars.
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/// </summary>
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private List<NetworkBehaviour> _dirtySyncVarBehaviours = new List<NetworkBehaviour>(20);
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/// <summary>
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/// NetworkBehaviours which have dirty SyncObjects.
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/// </summary>
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private List<NetworkBehaviour> _dirtySyncObjectBehaviours = new List<NetworkBehaviour>(20);
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/// <summary>
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/// Objects which need to be destroyed next tick.
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/// This is needed when running as host so host client will get any final messages for the object before they're destroyed.
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/// </summary>
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private Dictionary<int, NetworkObject> _pendingDestroy = new Dictionary<int, NetworkObject>();
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/// <summary>
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/// Scenes which were loaded that need to be setup.
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/// </summary>
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private List<(int, Scene)> _loadedScenes = new List<(int frame, Scene scene)>();
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/// <summary>
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/// Cache of spawning objects, used for recursively spawning nested NetworkObjects.
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/// </summary>
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private ListCache<NetworkObject> _spawnCache = new ListCache<NetworkObject>();
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/// <summary>
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/// True if one or more scenes are currently loading through the SceneManager.
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/// </summary>
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private bool _scenesLoading;
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/// <summary>
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/// Number of ticks which must pass to clear a recently despawned.
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/// </summary>
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private uint _cleanRecentlyDespawnedMaxTicks => base.NetworkManager.TimeManager.TimeToTicks(30d, TickRounding.RoundUp);
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#endregion
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internal ServerObjects(NetworkManager networkManager)
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{
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base.Initialize(networkManager);
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networkManager.SceneManager.OnLoadStart += SceneManager_OnLoadStart;
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networkManager.SceneManager.OnActiveSceneSetInternal += SceneManager_OnActiveSceneSet;
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networkManager.TimeManager.OnUpdate += TimeManager_OnUpdate;
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}
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/// <summary>
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/// Called when MonoBehaviours call Update.
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/// </summary>
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private void TimeManager_OnUpdate()
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{
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if (!base.NetworkManager.IsServer)
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{
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_scenesLoading = false;
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_loadedScenes.Clear();
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return;
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}
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CleanRecentlyDespawned();
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if (!_scenesLoading)
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IterateLoadedScenes(false);
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Observers_OnUpdate();
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}
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#region Checking dirty SyncTypes.
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/// <summary>
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/// Iterates NetworkBehaviours with dirty SyncTypes.
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/// </summary>
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internal void WriteDirtySyncTypes()
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{
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/* Tells networkbehaviours to check their
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* dirty synctypes. */
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IterateCollection(_dirtySyncVarBehaviours, false);
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IterateCollection(_dirtySyncObjectBehaviours, true);
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void IterateCollection(List<NetworkBehaviour> collection, bool isSyncObject)
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{
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for (int i = 0; i < collection.Count; i++)
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{
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bool dirtyCleared = collection[i].WriteDirtySyncTypes(isSyncObject);
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if (dirtyCleared)
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{
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collection.RemoveAt(i);
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i--;
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}
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}
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}
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}
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/// <summary>
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/// Sets that a NetworkBehaviour has a dirty syncVars.
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/// </summary>
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/// <param name="nb"></param>
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internal void SetDirtySyncType(NetworkBehaviour nb, bool isSyncObject)
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{
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if (isSyncObject)
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_dirtySyncObjectBehaviours.Add(nb);
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else
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_dirtySyncVarBehaviours.Add(nb);
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}
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#endregion
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#region Connection Handling.
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/// <summary>
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/// Called when the connection state changes for the local server.
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/// </summary>
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/// <param name="args"></param>
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internal void OnServerConnectionState(ServerConnectionStateArgs args)
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{
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//If server just connected.
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if (args.ConnectionState == LocalConnectionState.Started)
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{
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/* If there's no servers started besides the one
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* that just started then build Ids and setup scene objects. */
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if (base.NetworkManager.ServerManager.OneServerStarted())
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{
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BuildObjectIdCache();
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SetupSceneObjects();
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}
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}
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//Server in anything but started state.
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else
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{
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//If no servers are started then reset.
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if (!base.NetworkManager.ServerManager.AnyServerStarted())
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{
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base.DespawnWithoutSynchronization(true);
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base.SceneObjects.Clear();
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_objectIdCache.Clear();
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base.NetworkManager.ClearClientsCollection(base.NetworkManager.ServerManager.Clients);
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}
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}
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}
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/// <summary>
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/// Called when a client disconnects.
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/// </summary>
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/// <param name="connection"></param>
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internal void ClientDisconnected(NetworkConnection connection)
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{
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RemoveFromObserversWithoutSynchronization(connection);
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OnPreDestroyClientObjects?.Invoke(connection);
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/* A cache is made because the Objects
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* collection would end up modified during
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* iteration from removing ownership and despawning. */
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ListCache<NetworkObject> cache = ListCaches.GetNetworkObjectCache();
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foreach (NetworkObject nob in connection.Objects)
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cache.AddValue(nob);
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int written = cache.Written;
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List<NetworkObject> collection = cache.Collection;
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for (int i = 0; i < written; i++)
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{
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/* Objects may already be deinitializing when a client disconnects
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* because the root object could have been despawned first, and in result
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* all child objects would have been recursively despawned.
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*
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* EG: object is:
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* A (nob)
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* B (nob)
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*
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* Both A and B are owned by the client so they will both be
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* in collection. Should A despawn first B will recursively despawn
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* from it. Then once that finishes and the next index of collection
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* is run, which would B, the object B would have already been deinitialized. */
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if (!collection[i].IsDeinitializing)
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base.NetworkManager.ServerManager.Despawn(collection[i]);
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}
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ListCaches.StoreCache(cache);
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}
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#endregion
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#region ObjectIds.
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/// <summary>
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/// Builds the ObjectId cache with all possible Ids.
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/// </summary>
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private void BuildObjectIdCache()
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{
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_objectIdCache.Clear();
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/* Shuffle Ids to make it more difficult
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* for clients to track spawned object
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* count. */
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List<int> shuffledCache = new List<int>();
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//Ignore ushort.maxvalue as that indicates null.
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for (int i = 0; i < (ushort.MaxValue - 1); i++)
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shuffledCache.Add(i);
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/* Only shuffle when NOT in editor and not
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* development build.
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* Debugging could be easier when Ids are ordered. */
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#if !UNITY_EDITOR && !DEVELOPMENT_BUILD
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shuffledCache.Shuffle();
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#endif
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//Add shuffled to objectIdCache.
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//Build Id cache.
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int cacheCount = shuffledCache.Count;
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for (int i = 0; i < cacheCount; i++)
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_objectIdCache.Enqueue(shuffledCache[i]);
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}
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/// <summary>
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/// Caches a NetworkObject ObjectId.
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/// </summary>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private void CacheObjectId(NetworkObject nob)
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{
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if (nob.ObjectId != NetworkObject.UNSET_OBJECTID_VALUE)
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CacheObjectId(nob.ObjectId);
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}
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/// <summary>
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/// Adds an ObjectId to objectId cache.
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/// </summary>
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/// <param name="id"></param>
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internal void CacheObjectId(int id)
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{
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_objectIdCache.Enqueue(id);
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}
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/// <summary>
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/// Gets the next ObjectId to use for NetworkObjects.
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/// </summary>
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/// <returns></returns>
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protected internal override int GetNextNetworkObjectId(bool errorCheck = true)
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{
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//Either something went wrong or user actually managed to spawn ~64K networked objects.
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if (_objectIdCache.Count == 0)
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{
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base.NetworkManager.LogError($"No more available ObjectIds. How the heck did you manage to have {ushort.MaxValue} objects spawned at once?");
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return -1;
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}
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else
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{
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return _objectIdCache.Dequeue();
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}
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}
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#endregion
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#region Initializing Objects In Scenes.
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/// <summary>
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/// Called when a scene load starts.
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/// </summary>
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private void SceneManager_OnLoadStart(Scened.SceneLoadStartEventArgs obj)
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{
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_scenesLoading = true;
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}
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/// <summary>
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/// Called after the active scene has been scene, immediately after scene loads.
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/// </summary>
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private void SceneManager_OnActiveSceneSet()
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{
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_scenesLoading = false;
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IterateLoadedScenes(true);
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}
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/// <summary>
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/// Iterates loaded scenes and sets them up.
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/// </summary>
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/// <param name="ignoreFrameRestriction">True to ignore the frame restriction when iterating.</param>
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internal void IterateLoadedScenes(bool ignoreFrameRestriction)
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{
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//Not started, clear loaded scenes.
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if (!NetworkManager.ServerManager.Started)
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_loadedScenes.Clear();
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for (int i = 0; i < _loadedScenes.Count; i++)
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{
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(int frame, Scene scene) value = _loadedScenes[i];
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if (ignoreFrameRestriction || (Time.frameCount > value.frame))
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{
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SetupSceneObjects(value.scene);
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_loadedScenes.RemoveAt(i);
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i--;
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}
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}
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}
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/// <summary>
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/// Called when a scene loads on the server.
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/// </summary>
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/// <param name="s"></param>
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/// <param name="arg1"></param>
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protected internal override void SceneManager_sceneLoaded(Scene s, LoadSceneMode arg1)
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{
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base.SceneManager_sceneLoaded(s, arg1);
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if (!NetworkManager.ServerManager.Started)
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return;
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//Add to loaded scenes so that they are setup next frame.
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_loadedScenes.Add((Time.frameCount, s));
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}
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/// <summary>
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/// Setup all NetworkObjects in scenes. Should only be called when server is active.
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/// </summary>
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protected internal void SetupSceneObjects()
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{
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for (int i = 0; i < SceneManager.sceneCount; i++)
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SetupSceneObjects(SceneManager.GetSceneAt(i));
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Scene ddolScene = DDOLFinder.GetDDOL().gameObject.scene;
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if (ddolScene.isLoaded)
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SetupSceneObjects(ddolScene);
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}
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/// <summary>
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/// Setup NetworkObjects in a scene. Should only be called when server is active.
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/// </summary>
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/// <param name="s"></param>
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private void SetupSceneObjects(Scene s)
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{
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ListCache<NetworkObject> nobs;
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SceneFN.GetSceneNetworkObjects(s, false, out nobs);
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bool isHost = base.NetworkManager.IsHost;
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for (int i = 0; i < nobs.Written; i++)
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{
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NetworkObject nob = nobs.Collection[i];
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//Only setup if a scene object and not initialzied.
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if (nob.IsNetworked && nob.IsSceneObject && nob.IsDeinitializing)
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{
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base.UpdateNetworkBehavioursForSceneObject(nob, true);
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base.AddToSceneObjects(nob);
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/* If was active in the editor (before hitting play), or currently active
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* then PreInitialize without synchronizing to clients. There is no reason
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* to synchronize to clients because the scene just loaded on server,
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* which means clients are not yet in the scene. */
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if (nob.ActiveDuringEdit || nob.gameObject.activeInHierarchy)
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{
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//If not host then object doesn't need to be spawned until a client joins.
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if (!isHost)
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SetupWithoutSynchronization(nob);
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//Otherwise spawn object so observers update for clientHost.
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else
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SpawnWithoutChecks(nob);
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}
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}
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}
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ListCaches.StoreCache(nobs);
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}
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/// <summary>
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/// Performs setup on a NetworkObject without synchronizing the actions to clients.
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/// </summary>
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/// <param name="objectId">Override ObjectId to use.</param>
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private void SetupWithoutSynchronization(NetworkObject nob, NetworkConnection ownerConnection = null, int? objectId = null)
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{
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if (nob.IsNetworked)
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{
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if (objectId == null)
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objectId = GetNextNetworkObjectId();
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nob.Preinitialize_Internal(NetworkManager, objectId.Value, ownerConnection, true);
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base.AddToSpawned(nob, true);
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nob.gameObject.SetActive(true);
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nob.Initialize(true, true);
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}
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}
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#endregion
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#region Spawning.
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/// <summary>
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/// Spawns an object over the network.
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/// </summary>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal void Spawn(NetworkObject networkObject, NetworkConnection ownerConnection = null)
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{
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//Default as false, will change if needed.
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bool predictedSpawn = false;
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if (networkObject == null)
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{
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base.NetworkManager.LogError($"Specified networkObject is null.");
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return;
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}
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if (!NetworkManager.ServerManager.Started)
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{
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//Neither server nor client are started.
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if (!NetworkManager.ClientManager.Started)
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{
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base.NetworkManager.LogWarning("Cannot spawn object because server nor client are active.");
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return;
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}
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//Server has predicted spawning disabled.
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if (!NetworkManager.PredictionManager.GetAllowPredictedSpawning())
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{
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base.NetworkManager.LogWarning("Cannot spawn object because server is not active and predicted spawning is not enabled.");
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return;
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}
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//Various predicted spawn checks.
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if (!base.CanPredictedSpawn(networkObject, NetworkManager.ClientManager.Connection, ownerConnection, false))
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return;
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predictedSpawn = true;
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}
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if (!networkObject.gameObject.scene.IsValid())
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{
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base.NetworkManager.LogError($"{networkObject.name} is a prefab. You must instantiate the prefab first, then use Spawn on the instantiated copy.");
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return;
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}
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if (ownerConnection != null && ownerConnection.IsActive && !ownerConnection.LoadedStartScenes(!predictedSpawn))
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{
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base.NetworkManager.LogWarning($"{networkObject.name} was spawned but it's recommended to not spawn objects for connections until they have loaded start scenes. You can be notified when a connection loads start scenes by using connection.OnLoadedStartScenes on the connection, or SceneManager.OnClientLoadStartScenes.");
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}
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if (networkObject.IsSpawned)
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{
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base.NetworkManager.LogWarning($"{networkObject.name} is already spawned.");
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return;
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}
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if (networkObject.ParentNetworkObject != null && !networkObject.ParentNetworkObject.IsSpawned)
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{
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base.NetworkManager.LogError($"{networkObject.name} cannot be spawned because it has a parent NetworkObject {networkObject.ParentNetworkObject} which is not spawned.");
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return;
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}
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if (predictedSpawn)
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base.NetworkManager.ClientManager.Objects.PredictedSpawn(networkObject, ownerConnection);
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else
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SpawnWithoutChecks(networkObject, ownerConnection);
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}
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/// <summary>
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/// Spawns networkObject without any checks.
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/// </summary>
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private void SpawnWithoutChecks(NetworkObject networkObject, NetworkConnection ownerConnection = null, int? objectId = null)
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{
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/* Setup locally without sending to clients.
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* When observers are built for the network object
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* during initialization spawn messages will
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* be sent. */
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networkObject.SetIsNetworked(true);
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_spawnCache.AddValue(networkObject);
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SetupWithoutSynchronization(networkObject, ownerConnection, objectId);
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foreach (NetworkObject item in networkObject.ChildNetworkObjects)
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{
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/* Only spawn recursively if the nob state is unset.
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* Unset indicates that the nob has not been */
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if (item.gameObject.activeInHierarchy || item.State == NetworkObjectState.Spawned)
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SpawnWithoutChecks(item, ownerConnection);
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}
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/* Copy to a new cache then reset _spawnCache
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* just incase rebuilding observers would lead to
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* more additions into _spawnCache. EG: rebuilding
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* may result in additional objects being spawned
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* for clients and if _spawnCache were not reset
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* the same objects would be rebuilt again. This likely
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* would not affect anything other than perf but who
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* wants that. */
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ListCache<NetworkObject> spawnCacheCopy = ListCaches.GetNetworkObjectCache();
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spawnCacheCopy.AddValues(_spawnCache);
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_spawnCache.Reset();
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//Also rebuild observers for the object so it spawns for others.
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RebuildObservers(spawnCacheCopy);
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/* If also client then we need to make sure the object renderers have correct visibility.
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* Set visibility based on if the observers contains the clientHost connection. */
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if (NetworkManager.IsClient)
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{
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int count = spawnCacheCopy.Written;
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List<NetworkObject> collection = spawnCacheCopy.Collection;
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for (int i = 0; i < count; i++)
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collection[i].SetRenderersVisible(networkObject.Observers.Contains(NetworkManager.ClientManager.Connection));
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}
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ListCaches.StoreCache(spawnCacheCopy);
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}
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/// <summary>
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/// Reads a predicted spawn.
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/// </summary>
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internal void ReadPredictedSpawn(PooledReader reader, NetworkConnection conn)
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{
|
|
sbyte initializeOrder;
|
|
ushort collectionId;
|
|
int prefabId;
|
|
int objectId = reader.ReadNetworkObjectForSpawn(out initializeOrder, out collectionId, out _);
|
|
//If objectId is not within predicted ids for conn.
|
|
if (!conn.PredictedObjectIds.Contains(objectId))
|
|
{
|
|
reader.Clear();
|
|
conn.Kick(KickReason.ExploitAttempt, LoggingType.Common, $"Connection {conn.ClientId} used predicted spawning with a non-reserved objectId of {objectId}.");
|
|
return;
|
|
}
|
|
|
|
NetworkConnection owner = reader.ReadNetworkConnection();
|
|
SpawnType st = (SpawnType)reader.ReadByte();
|
|
//Not used at the moment.
|
|
byte componentIndex = reader.ReadByte();
|
|
|
|
//Read transform values which differ from serialized values.
|
|
Vector3? localPosition;
|
|
Quaternion? localRotation;
|
|
Vector3? localScale;
|
|
base.ReadTransformProperties(reader, out localPosition, out localRotation, out localScale);
|
|
|
|
NetworkObject nob;
|
|
bool isGlobal = false;
|
|
if (SpawnTypeEnum.Contains(st, SpawnType.Scene))
|
|
{
|
|
ulong sceneId = reader.ReadUInt64(AutoPackType.Unpacked);
|
|
nob = base.GetSceneNetworkObject(sceneId);
|
|
if (!base.CanPredictedSpawn(nob, conn, owner, true))
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
//Not used right now.
|
|
SpawnParentType spt = (SpawnParentType)reader.ReadByte();
|
|
prefabId = reader.ReadNetworkObjectId();
|
|
//Invalid prefabId.
|
|
if (prefabId == NetworkObject.UNSET_PREFABID_VALUE)
|
|
{
|
|
reader.Clear();
|
|
conn.Kick(KickReason.UnusualActivity, LoggingType.Common, $"Spawned object has an invalid prefabId of {prefabId}. Make sure all objects which are being spawned over the network are within SpawnableObjects on the NetworkManager. Connection {conn.ClientId} will be kicked immediately.");
|
|
return;
|
|
}
|
|
|
|
PrefabObjects prefabObjects = NetworkManager.GetPrefabObjects<PrefabObjects>(collectionId, false);
|
|
//PrefabObjects not found.
|
|
if (prefabObjects == null)
|
|
{
|
|
reader.Clear();
|
|
conn.Kick(KickReason.UnusualActivity, LoggingType.Common, $"PrefabObjects collection is not found for CollectionId {collectionId}. Be sure to add your addressables NetworkObject prefabs to the collection on server and client before attempting to spawn them over the network. Connection {conn.ClientId} will be kicked immediately.");
|
|
return;
|
|
}
|
|
//Check if prefab allows predicted spawning.
|
|
NetworkObject nPrefab = prefabObjects.GetObject(true, prefabId);
|
|
if (!base.CanPredictedSpawn(nPrefab, conn, owner, true))
|
|
return;
|
|
|
|
nob = NetworkManager.GetPooledInstantiated(prefabId, false);
|
|
isGlobal = SpawnTypeEnum.Contains(st, SpawnType.InstantiatedGlobal);
|
|
}
|
|
|
|
Transform t = nob.transform;
|
|
//Parenting predicted spawns is not supported yet.
|
|
t.SetParent(null, true);
|
|
base.GetTransformProperties(localPosition, localRotation, localScale, t, out Vector3 pos, out Quaternion rot, out Vector3 scale);
|
|
t.SetLocalPositionRotationAndScale(pos, rot, scale);
|
|
nob.SetIsGlobal(isGlobal);
|
|
|
|
//Initialize for prediction.
|
|
nob.InitializePredictedObject_Server(base.NetworkManager, conn);
|
|
|
|
/* Only read sync types if allowed for the object.
|
|
* If the client did happen to send synctypes while not allowed
|
|
* this will create a parse error on the server,
|
|
* resulting in the client being kicked. */
|
|
if (nob.AllowPredictedSyncTypes)
|
|
{
|
|
ArraySegment<byte> syncValues = reader.ReadArraySegmentAndSize();
|
|
PooledReader syncTypeReader = ReaderPool.GetReader(syncValues, base.NetworkManager);
|
|
foreach (NetworkBehaviour nb in nob.NetworkBehaviours)
|
|
{
|
|
//SyncVars.
|
|
int length = syncTypeReader.ReadInt32();
|
|
nb.OnSyncType(syncTypeReader, length, false, true);
|
|
//SyncObjects
|
|
length = syncTypeReader.ReadInt32();
|
|
nb.OnSyncType(syncTypeReader, length, true, true);
|
|
}
|
|
syncTypeReader.Dispose();
|
|
}
|
|
|
|
SpawnWithoutChecks(nob, owner, objectId);
|
|
|
|
//Send the spawner a new reservedId.
|
|
WriteResponse(true);
|
|
//Writes a predicted spawn result to a client.
|
|
void WriteResponse(bool success)
|
|
{
|
|
PooledWriter writer = WriterPool.GetWriter();
|
|
writer.WritePacketId(PacketId.PredictedSpawnResult);
|
|
writer.WriteNetworkObjectId(nob.ObjectId);
|
|
writer.WriteBoolean(success);
|
|
|
|
if (success)
|
|
{
|
|
Queue<int> objectIdCache = NetworkManager.ServerManager.Objects.GetObjectIdCache();
|
|
//Write next objectId to use.
|
|
int invalidId = NetworkObject.UNSET_OBJECTID_VALUE;
|
|
int nextId = (objectIdCache.Count > 0) ? objectIdCache.Dequeue() : invalidId;
|
|
writer.WriteNetworkObjectId(nextId);
|
|
//If nextId is valid then also add it to spawners local cache.
|
|
if (nextId != invalidId)
|
|
conn.PredictedObjectIds.Enqueue(nextId);
|
|
////Update RPC links.
|
|
//foreach (NetworkBehaviour nb in nob.NetworkBehaviours)
|
|
// nb.WriteRpcLinks(writer);
|
|
}
|
|
|
|
conn.SendToClient((byte)Channel.Reliable, writer.GetArraySegment());
|
|
}
|
|
|
|
}
|
|
#endregion
|
|
|
|
#region Despawning.
|
|
/// <summary>
|
|
/// Cleans recently despawned objects.
|
|
/// </summary>
|
|
private void CleanRecentlyDespawned()
|
|
{
|
|
//Only iterate if frame ticked to save perf.
|
|
if (!base.NetworkManager.TimeManager.FrameTicked)
|
|
return;
|
|
|
|
ListCache<int> intCache = ListCaches.GetIntCache();
|
|
|
|
uint requiredTicks = _cleanRecentlyDespawnedMaxTicks;
|
|
uint currentTick = base.NetworkManager.TimeManager.LocalTick;
|
|
//Iterate 20, or 5% of the collection, whichever is higher.
|
|
int iterations = Mathf.Max(20, (int)(RecentlyDespawnedIds.Count * 0.05f));
|
|
/* Given this is a dictionary there is no gaurantee which order objects are
|
|
* added. Because of this it's possible some objects may take much longer to
|
|
* be removed. This is okay so long as a consistent chunk of objects are removed
|
|
* at a time; eventually all objects will be iterated. */
|
|
int count = 0;
|
|
foreach (KeyValuePair<int, uint> kvp in RecentlyDespawnedIds)
|
|
{
|
|
long result = (currentTick - kvp.Value);
|
|
//If enough ticks have passed to remove.
|
|
if (result > requiredTicks)
|
|
intCache.AddValue(kvp.Key);
|
|
|
|
count++;
|
|
if (count == iterations)
|
|
break;
|
|
}
|
|
|
|
//Remove cached entries.
|
|
List<int> collection = intCache.Collection;
|
|
int cCount = collection.Count;
|
|
for (int i = 0; i < cCount; i++)
|
|
RecentlyDespawnedIds.Remove(collection[i]);
|
|
|
|
ListCaches.StoreCache(intCache);
|
|
}
|
|
/// <summary>
|
|
/// Returns if an objectId was recently despawned.
|
|
/// </summary>
|
|
/// <param name="objectId">ObjectId to check.</param>
|
|
/// <param name="ticks">Passed ticks to be within to be considered recently despawned.</param>
|
|
/// <returns>True if an objectId was despawned with specified number of ticks.</returns>
|
|
public bool RecentlyDespawned(int objectId, uint ticks)
|
|
{
|
|
uint despawnTick;
|
|
if (!RecentlyDespawnedIds.TryGetValue(objectId, out despawnTick))
|
|
return false;
|
|
|
|
return ((NetworkManager.TimeManager.LocalTick - despawnTick) <= ticks);
|
|
}
|
|
/// <summary>
|
|
/// Adds to objects pending destroy due to clientHost environment.
|
|
/// </summary>
|
|
/// <param name="nob"></param>
|
|
internal void AddToPending(NetworkObject nob)
|
|
{
|
|
_pendingDestroy[nob.ObjectId] = nob;
|
|
}
|
|
/// <summary>
|
|
/// Tries to removes objectId from PendingDestroy and returns if successful.
|
|
/// </summary>
|
|
internal bool RemoveFromPending(int objectId)
|
|
{
|
|
return _pendingDestroy.Remove(objectId);
|
|
}
|
|
/// <summary>
|
|
/// Returns a NetworkObject in PendingDestroy.
|
|
/// </summary>
|
|
internal NetworkObject GetFromPending(int objectId)
|
|
{
|
|
NetworkObject nob;
|
|
_pendingDestroy.TryGetValue(objectId, out nob);
|
|
return nob;
|
|
}
|
|
/// <summary>
|
|
/// Destroys NetworkObjects pending for destruction.
|
|
/// </summary>
|
|
internal void DestroyPending()
|
|
{
|
|
foreach (NetworkObject item in _pendingDestroy.Values)
|
|
{
|
|
if (item != null)
|
|
MonoBehaviour.Destroy(item.gameObject);
|
|
}
|
|
|
|
_pendingDestroy.Clear();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Despawns an object over the network.
|
|
/// </summary>
|
|
internal override void Despawn(NetworkObject networkObject, DespawnType despawnType, bool asServer)
|
|
{
|
|
//Default as false, will change if needed.
|
|
bool predictedDespawn = false;
|
|
|
|
if (networkObject == null)
|
|
{
|
|
base.NetworkManager.LogWarning($"NetworkObject cannot be despawned because it is null.");
|
|
return;
|
|
}
|
|
if (networkObject.IsDeinitializing)
|
|
{
|
|
base.NetworkManager.LogWarning($"Object {networkObject.name} cannot be despawned because it is already deinitializing.");
|
|
return;
|
|
}
|
|
|
|
if (!NetworkManager.ServerManager.Started)
|
|
{
|
|
//Neither server nor client are started.
|
|
if (!NetworkManager.ClientManager.Started)
|
|
{
|
|
base.NetworkManager.LogWarning("Cannot despawn object because server nor client are active.");
|
|
return;
|
|
}
|
|
//Server has predicted spawning disabled.
|
|
if (!NetworkManager.PredictionManager.GetAllowPredictedSpawning())
|
|
{
|
|
base.NetworkManager.LogWarning("Cannot despawn object because server is not active and predicted spawning is not enabled.");
|
|
return;
|
|
}
|
|
//Various predicted despawn checks.
|
|
if (!base.CanPredictedDespawn(networkObject, NetworkManager.ClientManager.Connection, false))
|
|
return;
|
|
|
|
predictedDespawn = true;
|
|
}
|
|
if (!networkObject.gameObject.scene.IsValid())
|
|
{
|
|
base.NetworkManager.LogError($"{networkObject.name} is a prefab. You must instantiate the prefab first, then use Spawn on the instantiated copy.");
|
|
return;
|
|
}
|
|
|
|
if (predictedDespawn)
|
|
{
|
|
base.NetworkManager.ClientManager.Objects.PredictedDespawn(networkObject);
|
|
}
|
|
else
|
|
{
|
|
FinalizeDespawn(networkObject, despawnType);
|
|
RecentlyDespawnedIds[networkObject.ObjectId] = base.NetworkManager.TimeManager.LocalTick;
|
|
base.Despawn(networkObject, despawnType, asServer);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Called when a NetworkObject is destroyed without being deactivated first.
|
|
/// </summary>
|
|
/// <param name="nob"></param>
|
|
internal override void NetworkObjectUnexpectedlyDestroyed(NetworkObject nob, bool asServer)
|
|
{
|
|
FinalizeDespawn(nob, DespawnType.Destroy);
|
|
base.NetworkObjectUnexpectedlyDestroyed(nob, asServer);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Finalizes the despawn process. By the time this is called the object is considered unaccessible.
|
|
/// </summary>
|
|
/// <param name="nob"></param>
|
|
private void FinalizeDespawn(NetworkObject nob, DespawnType despawnType)
|
|
{
|
|
if (nob != null && nob.ObjectId != NetworkObject.UNSET_OBJECTID_VALUE)
|
|
{
|
|
nob.WriteDirtySyncTypes();
|
|
WriteDespawnAndSend(nob, despawnType);
|
|
CacheObjectId(nob);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Writes a despawn and sends it to clients.
|
|
/// </summary>
|
|
/// <param name="nob"></param>
|
|
private void WriteDespawnAndSend(NetworkObject nob, DespawnType despawnType)
|
|
{
|
|
PooledWriter everyoneWriter = WriterPool.GetWriter();
|
|
WriteDespawn(nob, despawnType, everyoneWriter);
|
|
|
|
ArraySegment<byte> despawnSegment = everyoneWriter.GetArraySegment();
|
|
|
|
//Add observers to a list cache.
|
|
ListCache<NetworkConnection> cache = ListCaches.GetNetworkConnectionCache();
|
|
cache.Reset();
|
|
cache.AddValues(nob.Observers);
|
|
int written = cache.Written;
|
|
for (int i = 0; i < written; i++)
|
|
{
|
|
//Invoke ondespawn and send despawn.
|
|
NetworkConnection conn = cache.Collection[i];
|
|
nob.InvokeOnServerDespawn(conn);
|
|
NetworkManager.TransportManager.SendToClient((byte)Channel.Reliable, despawnSegment, conn);
|
|
//Remove from observers.
|
|
//nob.Observers.Remove(conn);
|
|
}
|
|
|
|
everyoneWriter.Dispose();
|
|
ListCaches.StoreCache(cache);
|
|
}
|
|
/// <summary>
|
|
/// Reads a predicted despawn.
|
|
/// </summary>
|
|
internal void ReadPredictedDespawn(Reader reader, NetworkConnection conn)
|
|
{
|
|
NetworkObject nob = reader.ReadNetworkObject();
|
|
|
|
//Maybe server destroyed the object so don't kick if null.
|
|
if (nob == null)
|
|
{
|
|
reader.Clear();
|
|
return;
|
|
}
|
|
//Does not allow predicted despawning.
|
|
if (!nob.AllowPredictedDespawning)
|
|
{
|
|
reader.Clear();
|
|
conn.Kick(KickReason.ExploitAttempt, LoggingType.Common, $"Connection {conn.ClientId} used predicted despawning for object {nob.name} when it does not support predicted despawning.");
|
|
}
|
|
|
|
//Despawn object.
|
|
nob.Despawn();
|
|
}
|
|
#endregion
|
|
}
|
|
|
|
|
|
}
|