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

public class SlimeAI : MonoBehaviour
{

    Animator animator;
    float playerDistance;
    GameObject player;

    //[SerializeField]
    //private UnityEvent onAttack;

    // Start is called before the first frame update
    void Start()
    {
        animator = GetComponent<Animator>();
        player = GameObject.FindWithTag("Player");
    }

    // Update is called once per frame
    void Update()
    {
        playerDistance = Vector3.Distance(player.transform.position, transform.position);
        if (playerDistance < 1.5) //Attack
        {
            animator.SetBool("EnemyInAttackRange", true);
            animator.SetBool("EnemyInAggroRange", true);
            animator.SetBool("EnemyInVisionRange", true);
            Rotate();
        }
        else if (playerDistance < 5) //Chase
        {
            animator.SetBool("EnemyInAttackRange", false);
            animator.SetBool("EnemyInAggroRange", true);
            animator.SetBool("EnemyInVisionRange", true);
            Rotate();
            Move();
        }
        else if (playerDistance < 8) //Stare
        {
            animator.SetBool("EnemyInAttackRange", false);
            animator.SetBool("EnemyInAggroRange", false);
            animator.SetBool("EnemyInVisionRange", true);
            Rotate();
        }
        else //Idle
        {
            animator.SetBool("EnemyInAttackRange", false);
            animator.SetBool("EnemyInAggroRange", false);
            animator.SetBool("EnemyInVisionRange", false);
        }
    }
    void Rotate()
    {
        // Rotate the forward vector towards the target direction by one step
        Vector3 newDirection = Vector3.RotateTowards(transform.forward, player.transform.position - transform.position, 1.0f * Time.deltaTime, 0.0f);

        // Calculate a rotation a step closer to the target and applies rotation to this object
        transform.rotation = Quaternion.LookRotation(newDirection);
    }
    void Move()
    {
        transform.position += transform.forward * Time.deltaTime * 1.0f;
    }
}