## 问题

最近跟着一个 MLAPI 教程用 Netcode 做多人联机，到了写玩家移动脚本的时候发现 Client 无法移动位置与转动视角，其它功能都正常。试了试输入都是正常的，最后在 Unity 官网上找到了相应的解释

简单来说就是 NetworkTransform 只允许 Server 向 Client 同步位置，而不允许 Client 自行改变位置，解决办法也很简单，把这个 NetworkTransform 设置为非 ServerAuthoritative 就可以了，以下是示例代码。

解决

using Unity.Netcode.Components;
using UnityEngine;

namespace Unity.Multiplayer.Samples.Utilities.ClientAuthority
{
    /// <summary>
    /// Used for syncing a transform with client side changes. This includes host. Pure server as owner isn't supported by this. Please use NetworkTransform
    /// for transforms that'll always be owned by the server.
    /// </summary>
    [DisallowMultipleComponent]
    public class ClientNetworkTransform : NetworkTransform
    {
        /// <summary>
        /// Used to determine who can write to this transform. Owner client only.
        /// This imposes state to the server. This is putting trust on your clients. Make sure no security-sensitive features use this transform.
        /// </summary>
        protected override bool OnIsServerAuthoritative()
        {
            return false;
        }
    }
}

将文件保存为 ClientNetworkTransform.cs 并替换原有 NetworkTransform 即可。

依据官方的说法这样的操作似乎并不是非常安全，但我也就是做个作业，暂时也不用考虑那些问题。

参考

NetworkTransform | Unity Multiplayer Networking (unity3d.com)