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

public class EnemyPathing : MonoBehaviour
{
    // new serialized field to drop the root prefab into
    [SerializeField] Transform path;

    // Doesn't need to, and really shouldn't be serialized any more
    [SerializeField] float moveSpeed = 2f;
    List<Transform> waypoints = new List<Transform>();
    int waypointIndex = 0;



    void Start()
    {
        // Simple iteration of the children transforms and adding them to the list
        // if they're not in order (0), (1), (2) in the hierarchy, they wont be in the list, either.
        for (int i = 0; i < path.childCount; i++)
        {
            waypoints.Add(waypoints[i]);
        }


        transform.position = waypoints[waypointIndex].position;

    }


    private void Move()
    {
        if (waypointIndex <= waypoints.Count - 1)
        {
            var targetPosition = waypoints[waypointIndex].transform.position;
            var movementThisFrame = moveSpeed * Time.deltaTime;
            transform.position = Vector2.MoveTowards(transform.position, targetPosition, movementThisFrame);

            if (transform.position == targetPosition)
            {
                waypointIndex++;
            }
        }
        else
        {
            Destroy(gameObject);
        }
    }

}