using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
public class EnemyManager : MonoBehaviour
{
    private AnimManager enemyAnim;

    private Transform playerTar;

    public Rigidbody myRB;

    public float speed = 5f;

    public float attackDis = 1f, chasDisAfterAttack = 1f;

    public float defultAttackTime = 2f, currentAttackTime;

    public bool followPlayer, attackPlayer;


    private void Awake()
    {
        enemyAnim = GetComponentInChildren<AnimManager>();
        myRB = GetComponent<Rigidbody>();

        playerTar = GameObject.FindGameObjectWithTag("Player").transform;
    }

    private void Start()
    {
        followPlayer = true;
        currentAttackTime = defultAttackTime;
    }

    private void Update()
    {
        AttackPlayer();
  }

    private void FixedUpdate()
    {

        FollowTarget();
    }

    void FollowTarget()
    {
        if (!followPlayer)
            return;

        if(Vector3.Distance(transform.position, playerTar.position) > attackDis)
        {
            transform.LookAt(playerTar);
            myRB.velocity = transform.forward * speed;

            if(myRB.velocity.sqrMagnitude != 0)
            {
                enemyAnim.Run(true);

            }
        } else if(Vector3.Distance(transform.position,playerTar.position) <= attackDis)
        {
            myRB.velocity = Vector3.zero;
            enemyAnim.Run(false);

            followPlayer = false;
            attackPlayer = true;
        }
    }

    void AttackPlayer()
    {
        if (!attackPlayer)
            return;

        currentAttackTime += Time.deltaTime;

        if(currentAttackTime > defultAttackTime)
        {
            enemyAnim.EnemyAttack(Random.Range(0, 3));

            currentAttackTime = 0f;
        }

        if(Vector3.Distance(transform.position,playerTar.position) > attackDis + chasDisAfterAttack)
        {
            attackPlayer = false;
            followPlayer = true;
        }
    }
}