使用方法：

挂载到需要移动到物体上

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Move : MonoBehaviour
{
    //定义单例，使外部可访问
    public static Move instance { get; set; }

    //目标位置
    public Vector3 destination;

    //是否移动
    public bool movingstatus=false;

    //等待时间
    public float waittime = 0f;

    //计时器
    public float timer = 0;

    //移动时长
    public float duration = 0.1f;

    //最大误差
    public Vector3 deviation;

    private Vector3 velocity = Vector3.zero;

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void FixedUpdate()
    {
        if(movingstatus==true)
        {
            //计时
            timer += Time.deltaTime;

            //误差
            deviation = destination - gameObject.transform.position;

            //超过时间即停止
            if (timer > (waittime + duration)&& Mathf.Abs(deviation.x)<0.01 && Mathf.Abs(deviation.y)< 0.01 && Mathf.Abs(deviation.z) < 0.01)
            {
                //位置校正
                gameObject.transform.position = destination;

                //初始化
                timer = 0;
                movingstatus=false;
            }
            else
            {
                gameObject.transform.position = Vector3.SmoothDamp(transform.position, destination, ref velocity, duration);
            }
        }
    }
}

其他脚本调用

tile.GetComponent<Move>().destination = position;
tile.GetComponent<Move>().movingstatus = true;

注意事项：

只有在激活状态下脚本才能生效，未激活的物体上挂载的脚本是不工作的，若不注意将引发严重的bug