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fix: #3330 #2422 SpawnObjects now activates, but does not spawn scene objects with inactive parents (#3347)

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* fix: #3330 #2422 SpawnObjects now activates, but does not spawn scene objects with inactive parents

* helper function

* remove old workaround.
identities which aren't active in hierarchy don't have Awake called forcefully anymore.
it's not necessary because the second pass won't spawn them anymore.

* add comments
This commit is contained in:
mischa 2023-01-06 18:21:03 +01:00 committed by GitHub
parent c9dfd95bb7
commit 3c85efa2d9
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1 changed files with 24 additions and 14 deletions
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38
Assets/Mirror/Core/NetworkServer.cs
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@ -1211,6 +1211,19 @@ internal static void SendChangeOwnerMessage(NetworkIdentity identity, NetworkCon
});
}
// check NetworkIdentity parent before spawning it.
// - without parent, they are spawned
// - with parent, only if the parent is active in hierarchy
//
// note that active parents may have inactive parents of their own.
// we need to check .activeInHierarchy.
//
// fixes: https://github.com/MirrorNetworking/Mirror/issues/3330
// https://github.com/vis2k/Mirror/issues/2778
static bool ValidParent(NetworkIdentity identity) =>
identity.transform.parent == null ||
identity.transform.parent.gameObject.activeInHierarchy;
/// <summary>Spawns NetworkIdentities in the scene on the server.</summary>
// NetworkIdentity objects in a scene are disabled by default. Calling
// SpawnObjects() causes these scene objects to be enabled and spawned.
@ -1231,30 +1244,27 @@ public static bool SpawnObjects()
// only spawn scene objects which haven't been spawned yet.
// SpawnObjects may be called multiple times for additive scenes.
// https://github.com/MirrorNetworking/Mirror/issues/3318
//
// note that we even activate objects under inactive parents.
// while they are not spawned, they do need to be activated
// in order to be spawned later. so here, we don't check parents.
// https://github.com/MirrorNetworking/Mirror/issues/3330
if (Utils.IsSceneObject(identity) && identity.netId == 0)
{
// Debug.Log($"SpawnObjects sceneId:{identity.sceneId:X} name:{identity.gameObject.name}");
identity.gameObject.SetActive(true);
// fix https://github.com/vis2k/Mirror/issues/2778:
// -> SetActive(true) does NOT call Awake() if the parent
// is inactive
// -> we need Awake() to initialize NetworkBehaviours[] etc.
// because our second pass below spawns and works with it
// => detect this situation and manually call Awake for
// proper initialization
if (!identity.gameObject.activeInHierarchy)
identity.Awake();
}
}
// second pass: spawn all scene objects
foreach (NetworkIdentity identity in identities)
{
// only spawn scene objects which haven't been spawned yet.
// SpawnObjects may be called multiple times for additive scenes.
// https://github.com/MirrorNetworking/Mirror/issues/3318
if (Utils.IsSceneObject(identity) && identity.netId == 0)
// scene objects may be children of inactive parents.
// users would put them under disabled parents to 'deactivate' them.
// those should not be used by Mirror at all.
// fixes: https://github.com/MirrorNetworking/Mirror/issues/3330
// https://github.com/vis2k/Mirror/issues/2778
if (Utils.IsSceneObject(identity) && identity.netId == 0 && ValidParent(identity))
{
// pass connection so that authority is not lost when server loads a scene
// https://github.com/vis2k/Mirror/pull/2987