player.position = mTarget[Random.Range(0, mTarget.Length())].transform.position; // Забыл как там у массива размер берется length, size, count

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

public class patrolRandomAndChase : MonoBehaviour
{
    
    public Transform player;
    public Transform[] moveSpots;
    private int randomSpot;  
    public float distToPlayer;
    public float chaseRadius = 7f;
    public float speed = 6f;

    private float waitTime;
    public float startWaitTime = 0.1f;

    Animator wolf;
    NavMeshAgent nav;

    public GameObject[] mPoint = { };
    public GameObject[] mTarget;

    void Start()
    {
        

        mPoint = GameObject.FindGameObjectsWithTag("point");
        moveSpots = new Transform[mPoint.Length];

        for (int i = 0; i < mPoint.Length; i++)
        {
            moveSpots[i] = mPoint[i].transform;
        }

        mTarget = GameObject.FindGameObjectsWithTag("Untagged");                    
       //дальше не знаю что делать...

        waitTime = startWaitTime;
        randomSpot = Random.Range(0, moveSpots.Length);
        wolf = GetComponent<Animator>();
    }

    private void Awake()
    {
        nav = GetComponent<NavMeshAgent>();
        nav.enabled = true;
    }

    void Update()
    {
        float distance = Vector3.Distance(player.position, transform.position);

        if (distance > chaseRadius)
        {
            Patroling();
        }
        else if (distance <= chaseRadius)
        {
            ChasePlayer();
        }

        distToPlayer = Vector3.Distance(player.position, transform.position);

        if (distToPlayer > 7f)
        {
            wolf.SetBool("wolf_walk", true);
        }
        else wolf.SetBool("wolf_walk", false);

        if (distToPlayer < 7f)
        {
            wolf.SetBool("wolf_attack", true);
        }
        else wolf.SetBool("wolf_attack", false);
    }
    void Patroling()
    {
        nav.SetDestination(moveSpots[randomSpot].position);

        if (Vector3.Distance(transform.position, moveSpots[randomSpot].position) < 2.0f)
      {
         if (waitTime <= 0)
         {
          randomSpot = Random.Range(0, moveSpots.Length);

          waitTime = startWaitTime;
         }
         else
         {
         waitTime -= Time.deltaTime;
         }
      }
    }
    void ChasePlayer()
    {
        float distance = Vector3.Distance(player.position, transform.position);

        if (distance <= chaseRadius && distance > distToPlayer)
        {
            nav.SetDestination(player.transform.position);
        }
    }
}