Fusion for Unity中OccupiedTransform网络集合同步问题求助
解决方案
问题根源在于你的OccupiedTransform结构体不符合Fusion网络序列化要求:
- 未实现Fusion的
INetworkStruct接口、未标记[NetworkStruct],无法被网络集合同步; - 直接使用Unity的
Transform引用类型,Fusion无法序列化普通Unity对象引用,必须改用Fusion提供的网络引用类型。
修改后的核心代码
// 符合Fusion网络序列化要求的结构体 [Serializable, NetworkStruct] public struct OccupiedTransform : INetworkStruct { // 用NetworkObjectReference替代Transform,指向Transform所在的网络对象 public NetworkObjectReference TransformOwner; public PlayerRef Occupier; // 辅助方法:通过NetworkRunner获取对应的Transform public Transform GetTransform(NetworkRunner runner) { if (TransformOwner.TryGet(runner, out var networkObj)) { return networkObj.transform; } return null; } } // 用[Networked]标记网络集合,替代[SerializeField]以实现网络同步 [Networked] private NetworkLinkedList<OccupiedTransform> _occupiedTransformList = new NetworkLinkedList<OccupiedTransform>();
功能实现代码
检查Transform是否被占用
public bool IsTransformOccupied(NetworkRunner runner, Transform targetTransform) { var targetObjRef = NetworkObjectReference.FromNetworkObject(targetTransform.GetComponent<NetworkObject>()); foreach (var entry in _occupiedTransformList) { if (entry.TransformOwner == targetObjRef && entry.Occupier != default) { return true; } } return false; }
为Transform分配玩家
// 注意:需在服务器端调用,或通过RPC请求服务器执行 public void AssignPlayerToTransform(NetworkRunner runner, Transform targetTransform, PlayerRef player) { var targetObjRef = NetworkObjectReference.FromNetworkObject(targetTransform.GetComponent<NetworkObject>()); // 先检查是否已有该Transform的记录,有则更新玩家,无则新增 foreach (var entry in _occupiedTransformList) { if (entry.TransformOwner == targetObjRef) { var index = _occupiedTransformList.IndexOf(entry); _occupiedTransformList[index] = entry with { Occupier = player }; return; } } _occupiedTransformList.Add(new OccupiedTransform { TransformOwner = targetObjRef, Occupier = player }); }
移除Transform的玩家占用
// 注意:需在服务器端调用,或通过RPC请求服务器执行 public void RemovePlayerFromTransform(NetworkRunner runner, Transform targetTransform) { var targetObjRef = NetworkObjectReference.FromNetworkObject(targetTransform.GetComponent<NetworkObject>()); foreach (var entry in _occupiedTransformList) { if (entry.TransformOwner == targetObjRef) { var index = _occupiedTransformList.IndexOf(entry); // 可选:移除整条记录,或仅将Occupier设为default表示未占用 _occupiedTransformList.RemoveAt(index); // _occupiedTransformList[index] = entry with { Occupier = default }; return; } } }
关键注意事项
- 确保目标Transform所在的GameObject已挂载
NetworkObject组件,否则无法生成有效的NetworkObjectReference; - 网络集合的修改操作必须在服务器端执行,客户端只能读取集合状态。如果需要客户端触发修改,需通过
Rpc方法调用服务器逻辑; PlayerRef是Fusion原生支持的序列化类型,无需额外处理。
内容的提问来源于stack exchange,提问作者Fabian
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