控制敌人往指定方向移动（塔防）

先定义好一组位置，按照位置，按照位置定义数组，在物体上添加脚本

using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.UI;public class Enemy : MonoBehaviour {    public float speed = 10;    private Transform[] positions;    private int index = 0;    void Start () {        positions = Waypoints.positions;    }     void Update () {        Move();}    void Move()    {        if (index > positions.Length - 1) return;        transform.Translate((positions[index].position - transform.position).normalized * Time.deltaTime * speed);        if (Vector3.Distance(positions[index].position, transform.position) < 0.2f)        {            index++;        }}