Actor2D

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

public class Actor2D : MonoBehaviour
{
    [SerializeField]
    GameObject followTarget;
    [SerializeField]
    Animator anim;
    [SerializeField]
    NavMeshAgent agent;
    [SerializeField]
    bool isFlying;

    private void Awake()
    {
        anim = GetComponent<Animator>();
        agent = followTarget.GetComponent<NavMeshAgent>();
    }

    private void Update()
    {
        if(!isFlying)
        {
            anim.SetBool("IsWalking",agent.velocity == Vector3.zero ? false : true);
            if(Mathf.Abs(agent.velocity.z) >= Mathf.Abs(agent.velocity.x))
            {
                anim.SetFloat("TargetZ", -agent.velocity.z);
                anim.SetFloat("TargetX", 0);
            }
            else
            {
                anim.SetFloat("TargetX", agent.velocity.x);
                anim.SetFloat("TargetZ", 0);
            }
        }
    }

    private void LateUpdate()
    {
        if(followTarget != null)
        {
            transform.localPosition = new Vector3(followTarget.transform.localPosition.x, followTarget.transform.localPosition.y, followTarget.transform.localPosition.z);
        }
    }
}