Client NetworkObjects experience Awake, Start, OnEnable, and TriggerEnter, CollisionEnter at world 0,0,0 upon instantiation

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#3,553 3 comentários 2 reações 1 responsável Ver no GitHub

@NoelStephensUnity já está trabalhando nisso.

Desde 17/7/2025.

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Descrição

priority:medium stat:imported type:bug
Description

When a client spawns a NetworkObject via NetworkSpawnManage.InstantiateNetworkPrefab() there is no position or rotation data passed into UnityEngine.Object.Instantiate() and therefore the object is created at world 0,0,0. On a later line of code the position and rotation are assigned, after instantiation.

This means Awake, Start, and OnEnable are all called when at world 0,0,0 -- this is arguably expected and why you have OnNetworkSpawn.

However, OnTriggerEnter (and probably OnCollisionEnter) also fire for things at world 0,0,0. That problem is outside of the scope of the OnNetworkSpawn warmup in my opinion.

Developers should not have to write custom code to handle this problem when the position and rotation could simply be passed into the instantiation.

internal NetworkObject InstantiateNetworkPrefab(GameObject networkPrefab, uint prefabGlobalObjectIdHash, Vector3? position, Quaternion? rotation)
{
    Vector3 defaultPosition = position ?? Vector3.zero;
    Quaternion defaultRotation = rotation ?? Quaternion.identity;
    var networkObject = UnityEngine.Object.Instantiate(networkPrefab, defaultPosition, defaultRotation).GetComponent<NetworkObject>();
    // networkObject.transform.position = position ?? networkObject.transform.position;
    // networkObject.transform.rotation = rotation ?? networkObject.transform.rotation;
    networkObject.NetworkManagerOwner = NetworkManager;
    networkObject.PrefabGlobalObjectIdHash = prefabGlobalObjectIdHash;
    return networkObject;
}
Environment
  • OS: Windows 11
  • Unity Version: 6000.1.3f1
  • Netcode Version: 2.4.2
  • Netcode Topology: Client-Server
Linguagem predominante
C#
Estrelas
2.3k
Forks
461
Merge médio
3d 16h
PRs com merge (30d)
20

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