using UnityEngine;

public class LerpOld : MonoBehaviour
{            
    private Transform startPoint, endPoint;
    [SerializeField]
    private Transform[] waypoints;
    public float speed = 1.0f;

    private int currentStartPoint;
    private float startTime;
    private float journeyLength;

    private void Start()
    {
        currentStartPoint = 0;
        transform.position = waypoints[currentStartPoint].position;
        SetPoints();
    }

    void SetPoints()
    {
        startPoint = waypoints[currentStartPoint];
        endPoint = waypoints[currentStartPoint + 1];
        startTime = Time.time;
        journeyLength = Vector3.Distance(startPoint.position, endPoint.position);
    }

    // Update is called once per frame
    void Update()
    {
        float distCovered = (Time.time - startTime) * speed;
        float fracJourney = distCovered / journeyLength;
        transform.position = Vector3.Lerp(startPoint.position, endPoint.position, fracJourney);
        //transform.rotation = Quaternion.Lerp(startPoint.rotation, endPoint.rotation, fracJourney);
        if (fracJourney >= 1f && currentStartPoint + 2 < waypoints.Length)
        {
            currentStartPoint++;
            SetPoints();
        }
    }
}