PhotonNetwork.cs 结尾添加如下代码：
#region >>> Photon自定义异步加载GameObject
public delegate void CustomLoader(string prefabName, Action<UnityEngine.Object> ac);
public static CustomLoader _loader;
public static void RegisterCustomLoaderToPhoton(CustomLoader loader)
{
_loader = loader;
}
public static bool InstantiateCustom(string prefabName, Vector3 position, Quaternion rotation, byte group, object[] data, Action<GameObject> callback)
{
if (!connected || (InstantiateInRoomOnly && !inRoom))
{
Debug.LogError("Failed to Instantiate prefab: " + prefabName + ". Client should be in a room. Current connectionStateDetailed: " + PhotonNetwork.connectionStateDetailed);
return false;
}
GameObject prefabGo;
if (!UsePrefabCache || !PrefabCache.TryGetValue(prefabName, out prefabGo))
{
_loader(prefabName, (ab) =>
{
prefabGo = (GameObject)(ab);
if (UsePrefabCache)
{
PrefabCache.Add(prefabName, prefabGo);
}
if (prefabGo == null)
{
Debug.LogError("Failed to Instantiate prefab: " + prefabName + ". Verify the Prefab is in a Resources folder (and not in a subfolder)");
callback.Invoke(null);
}
// a scene object instantiated with network visibility has to contain a PhotonView
if (prefabGo.GetComponent<PhotonView>() == null)
{
Debug.LogError("Failed to Instantiate prefab:" + prefabName + ". Prefab must have a PhotonView component.");
callback.Invoke(null);
}
Component[] views = (Component[])prefabGo.GetPhotonViewsInChildren();
int[] viewIDs = new int[views.Length];
for (int i = 0; i < viewIDs.Length; i++)
{
//Debug.Log("Instantiate prefabName: " + prefabName + " player.ID: " + player.ID);
viewIDs[i] = AllocateViewID(player.ID);
}
// Send to others, create info
Hashtable instantiateEvent = networkingPeer.SendInstantiate(prefabName, position, rotation, group, viewIDs, data, false);
// Instantiate the GO locally (but the same way as if it was done via event). This will also cache the instantiationId
callback.Invoke(networkingPeer.DoInstantiate(instantiateEvent, networkingPeer.LocalPlayer, prefabGo));
});
return true;
}
if (prefabGo != null)
{
// a scene object instantiated with network visibility has to contain a PhotonView
if (prefabGo.GetComponent<PhotonView>() == null)
{
Debug.LogError("Failed to Instantiate prefab:" + prefabName + ". Prefab must have a PhotonView component.");
callback.Invoke(null);
}
Component[] views = (Component[])prefabGo.GetPhotonViewsInChildren();
int[] viewIDs = new int[views.Length];
for (int i = 0; i < viewIDs.Length; i++)
{
//Debug.Log("Instantiate prefabName: " + prefabName + " player.ID: " + player.ID);
viewIDs[i] = AllocateViewID(player.ID);
}
// Send to others, create info
Hashtable instantiateEvent = networkingPeer.SendInstantiate(prefabName, position, rotation, group, viewIDs, data, false);
callback.Invoke(networkingPeer.DoInstantiate(instantiateEvent, networkingPeer.LocalPlayer, prefabGo));
return true;
}
return false;
}
#endregion
NetworkingPeer.cs 结尾添加如下代码：
#region >>> Photon自定义异步加载GameObject
public delegate void CustomInstantiatedHandler(PhotonPlayer photonPlayer, GameObject go);
public static event CustomInstantiatedHandler OnCustomInstantiated;
internal void DoInstantiateCustom(Hashtable evData, PhotonPlayer photonPlayer, GameObject resourceGameObject, Action<GameObject> callback)
{
// some values always present:
string prefabName = (string)evData[(byte)0];
int serverTime = (int)evData[(byte)6];
int instantiationId = (int)evData[(byte)7];
Vector3 position;
if (evData.ContainsKey((byte)1))
{
position = (Vector3)evData[(byte)1];
}
else
{
position = Vector3.zero;
}
Quaternion rotation = Quaternion.identity;
if (evData.ContainsKey((byte)2))
{
rotation = (Quaternion)evData[(byte)2];
}
byte group = 0;
if (evData.ContainsKey((byte)3))
{
group = (byte)evData[(byte)3];
}
short objLevelPrefix = 0;
if (evData.ContainsKey((byte)8))
{
objLevelPrefix = (short)evData[(byte)8];
}
int[] viewsIDs;
if (evData.ContainsKey((byte)4))
{
viewsIDs = (int[])evData[(byte)4];
}
else
{
viewsIDs = new int[1] { instantiationId };
}
object[] incomingInstantiationData;
if (evData.ContainsKey((byte)5))
{
incomingInstantiationData = (object[])evData[(byte)5];
}
else
{
incomingInstantiationData = null;
}
// SetReceiving filtering
if (group != 0 && !this.allowedReceivingGroups.Contains(group))
{
if (callback != null)
{
callback.Invoke(null);
}
return; // Ignore group
}
if (ObjectPool != null) // 使用对象池的情况
{
GameObject go = ObjectPool.Instantiate(prefabName, position, rotation);
PhotonView[] photonViews = go.GetPhotonViewsInChildren();
if (photonViews.Length != viewsIDs.Length)
{
throw new Exception("Error in Instantiation! The resource's PhotonView count is not the same as in incoming data.");
}
for (int i = 0; i < photonViews.Length; i++)
{
photonViews[i].didAwake = false;
photonViews[i].viewID = 0;
photonViews[i].prefix = objLevelPrefix;
photonViews[i].instantiationId = instantiationId;
photonViews[i].isRuntimeInstantiated = true;
photonViews[i].instantiationDataField = incomingInstantiationData;
photonViews[i].didAwake = true;
photonViews[i].viewID = viewsIDs[i]; // with didAwake true and viewID == 0, this will also register the view
}
// Send OnPhotonInstantiate callback to newly created GO.
// GO will be enabled when instantiated from Prefab and it does not matter if the script is enabled or disabled.
go.SendMessage(OnPhotonInstantiateString, new PhotonMessageInfo(photonPlayer, serverTime, null), SendMessageOptions.DontRequireReceiver);
if (callback != null)
{
callback.Invoke(go);
if (OnCustomInstantiated != null)
{
OnCustomInstantiated.Invoke(photonPlayer, go);
}
}
return;
}
else
{
// load prefab, if it wasn't loaded before (calling methods might do this)
if (resourceGameObject == null)
{
if (!NetworkingPeer.UsePrefabCache || !NetworkingPeer.PrefabCache.TryGetValue(prefabName, out resourceGameObject))
{
//resourceGameObject = (GameObject)Resources.Load(prefabName, typeof(GameObject));
PhotonNetwork._loader(prefabName, (ab) =>
{
resourceGameObject = (GameObject)ab;
if (NetworkingPeer.UsePrefabCache)
{
NetworkingPeer.PrefabCache.Add(prefabName, resourceGameObject);
}
if (resourceGameObject == null)
{
Debug.LogError("PhotonNetwork error: Could not find the bundle [" + prefabName + "]. Please verify you have this gameobject in a StreamingAssets/Res folder.");
if (callback != null)
{
callback.Invoke(null);
}
return;
}
// now modify the loaded "blueprint" object before it becomes a part of the scene (by instantiating it)
PhotonView[] resourcePVs = resourceGameObject.GetPhotonViewsInChildren();
if (resourcePVs.Length != viewsIDs.Length)
{
throw new Exception("Error in Instantiation! The resource's PhotonView count is not the same as in incoming data.");
}
for (int i = 0; i < viewsIDs.Length; i++)
{
// NOTE instantiating the loaded resource will keep the viewID but would not copy instantiation data, so it's set below
// so we only set the viewID and instantiationId now. the instantiationData can be fetched
resourcePVs[i].viewID = viewsIDs[i];
resourcePVs[i].prefix = objLevelPrefix;
resourcePVs[i].instantiationId = instantiationId;
resourcePVs[i].isRuntimeInstantiated = true;
}
this.StoreInstantiationData(instantiationId, incomingInstantiationData);
// load the resource and set it's values before instantiating it:
GameObject go = (GameObject)GameObject.Instantiate(resourceGameObject, position, rotation);
for (int i = 0; i < viewsIDs.Length; i++)
{
// NOTE instantiating the loaded resource will keep the viewID but would not copy instantiation data, so it's set below
// so we only set the viewID and instantiationId now. the instantiationData can be fetched
resourcePVs[i].viewID = 0;
resourcePVs[i].prefix = -1;
resourcePVs[i].prefixBackup = -1;
resourcePVs[i].instantiationId = -1;
resourcePVs[i].isRuntimeInstantiated = false;
}
this.RemoveInstantiationData(instantiationId);
// Send OnPhotonInstantiate callback to newly created GO.
// GO will be enabled when instantiated from Prefab and it does not matter if the script is enabled or disabled.
go.SendMessage(OnPhotonInstantiateString, new PhotonMessageInfo(photonPlayer, serverTime, null), SendMessageOptions.DontRequireReceiver);
if (callback != null)
{
callback.Invoke(go);
if (OnCustomInstantiated != null)
{
OnCustomInstantiated.Invoke(photonPlayer, go);
}
}
return;
});
}
else
{
// now modify the loaded "blueprint" object before it becomes a part of the scene (by instantiating it)
PhotonView[] resourcePVs = resourceGameObject.GetPhotonViewsInChildren();
if (resourcePVs.Length != viewsIDs.Length)
{
throw new Exception("Error in Instantiation! The resource's PhotonView count is not the same as in incoming data.");
}
for (int i = 0; i < viewsIDs.Length; i++)
{
// NOTE instantiating the loaded resource will keep the viewID but would not copy instantiation data, so it's set below
// so we only set the viewID and instantiationId now. the instantiationData can be fetched
resourcePVs[i].viewID = viewsIDs[i];
resourcePVs[i].prefix = objLevelPrefix;
resourcePVs[i].instantiationId = instantiationId;
resourcePVs[i].isRuntimeInstantiated = true;
}
this.StoreInstantiationData(instantiationId, incomingInstantiationData);
// load the resource and set it's values before instantiating it:
GameObject go = (GameObject)GameObject.Instantiate(resourceGameObject, position, rotation);
for (int i = 0; i < viewsIDs.Length; i++)
{
// NOTE instantiating the loaded resource will keep the viewID but would not copy instantiation data, so it's set below
// so we only set the viewID and instantiationId now. the instantiationData can be fetched
resourcePVs[i].viewID = 0;
resourcePVs[i].prefix = -1;
resourcePVs[i].prefixBackup = -1;
resourcePVs[i].instantiationId = -1;
resourcePVs[i].isRuntimeInstantiated = false;
}
this.RemoveInstantiationData(instantiationId);
// Send OnPhotonInstantiate callback to newly created GO.
// GO will be enabled when instantiated from Prefab and it does not matter if the script is enabled or disabled.
go.SendMessage(OnPhotonInstantiateString, new PhotonMessageInfo(photonPlayer, serverTime, null), SendMessageOptions.DontRequireReceiver);
if (callback != null)
{
callback.Invoke(go);
if (OnCustomInstantiated != null)
{
OnCustomInstantiated.Invoke(photonPlayer, go);
}
}
return;
}
}
}
}
#endregion
NetworkingPeer.cs 第2598行：
屏蔽掉原有的 DoInstantiate 调用，改为 DoInstantiateCustom 调用
//this.DoInstantiate((Hashtable)photonEvent[ParameterCode.Data], originatingPlayer, null);
this.DoInstantiateCustom((Hashtable)photonEvent[ParameterCode.Data], originatingPlayer, null, (go) => {
SendMonoMessage(PhotonNetworkingMessage.OnPhotonInstantiate, new PhotonMessageInfo(originatingPlayer, 0, go.GetComponent<PhotonView>()));
});
回调的意义在于你可以在初始Photon.MonoBehaviour中捕获全局的OnPhotonInstantiate网络物体初始回调，同样的你也可以通过OnCustomInstantiated事件来自定义回调事件行为
之后记得调用 PhotonNetwork.RegisterCustomLoaderToPhoton 注册一个自定义的默认异步资源加载方法给 Photon 即可