当我尝试转换此播放器控制器时，它只会重置为原始位置

问题描述

这是我现在使用的播放器控制器的简化版本，它仍然会产生下面解释的错误:

This is a reduced version of the player controller I am using now, which still produces the error explained below:

using UnityEngine;
using UnityStandardAssets.CrossPlatformInput;
using UnityStandardAssets.Utility;
using Random = UnityEngine.Random;

namespace UnityStandardAssets.Characters.FirstPerson
{
    [RequireComponent(typeof (CharacterController))]
    public class FirstPersonController : MonoBehaviour
    {
        [SerializeField] private float m_RunSpeed;

        private CharacterController m_CharacterController;

        // Use this for initialization
        private void Start()
        {
            m_CharacterController = GetComponent<CharacterController>();
        }

        private void FixedUpdate()
        {
            Vector3 move = Vector3.right * m_RunSpeed;
            m_CharacterController.Move(move * Time.fixedDeltaTime);
        } 
    }
}

我正在使用标准资产脚本，并且我正在尝试让脚本将玩家传送到不同的地方.当我尝试移动播放器时，它会移动到那个位置一帧，然后又回到它的位置.

I am using the standard assets script and I am trying to have a script teleport the player to different places. When I try and move the player it goes to that position for a frame, then goes right back to its position.

player.transform = new Vector3(1,2,3);
// works as expected, but then next frame, player's
// position is back to where it was before

推荐答案

出现这个问题是因为 Move 可能无法读取 transform.position.

This problem occurs because Move may not be able to read the up-to-date values for transform.position.

此问题已在官方 Unity 问题跟踪器上报告 此处，并且在此处也发布了解决方案:

This problem has been reported on the official Unity Issue Tracker here, and a solution was posted there as well:

这里的问题是在物理设置中禁用了自动同步变换，所以 characterController.Move() 不一定知道变换设置的新姿势，除非 FixedUpdate 或 Physics.Simulate() 调用发生在 transform.position 和 CC.Move() 之间.

要解决这个问题，要么在物理设置中启用自动同步变换，要么在调用 Move()

To fix that, either enable auto sync transforms in the physics settings, or sync manually via Physics.SyncTransforms right before calling Move()

因此，您可以通过编辑 FixedUpdate 来解决您的问题，使其在 Move 之前调用 Physics.SyncTransforms，如下所示:

So, you could fix your problem by editing FixedUpdate so that it calls Physics.SyncTransforms before Move, like this:

using UnityEngine;
using UnityStandardAssets.CrossPlatformInput;
using UnityStandardAssets.Utility;
using Random = UnityEngine.Random;

namespace UnityStandardAssets.Characters.FirstPerson
{
    [RequireComponent(typeof (CharacterController))]
    public class FirstPersonController : MonoBehaviour
    {
        [SerializeField] private float m_RunSpeed;

        private CharacterController m_CharacterController;

        // Use this for initialization
        private void Start()
        {
            m_CharacterController = GetComponent<CharacterController>();
        }

        private void FixedUpdate()
        {
            Vector3 move = Vector3.right * m_RunSpeed;

            Physics.SyncTransforms();
            m_CharacterController.Move(move * Time.fixedDeltaTime);
        } 
    }
}

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