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using UnityEngine;
 
[RequireComponent (typeof (CharacterController))]
[RequireComponent (typeof (NavMeshAgent))]
[RequireComponent (typeof (EnemyHealth))]
public class EnemyAI : MonoBehaviour {
    private CharacterController _controller;
    private Animator _animator;
    private NavMeshAgent _agent;
    
    public GameObject _player;
    
    private enum State {
        idle,
        run
    }
    private State _state;
 
    private void Awake () {
        _controller = GetComponent <CharacterController> ();
        _animator = GetComponent <Animator> ();
        _agent = GetComponent <NavMeshAgent> ();
    }
 
    private void Start () {
    }
    
    private void Update () {
        print (_state);
        if (_controller.isGrounded) {
            switch (_state) {
            case State.idle:
                Idle ();
                break;
            case State.run:
                Run ();
                break;
            }
        }
    }
    
    private void Idle () {
        
    }
    
    private void Run () {
        _agent.SetDestination (_player.transform.position);
    }
    
    public void FindPlayer () {
        _player = GameObject.FindWithTag ("Player");
        _state = State.run;
        _animator.SetFloat ("Move", 1);
    }
}