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

public class LPPV_Follow : MonoBehaviour {

	[SerializeField] private Transform target;
	[SerializeField] private float rotationDamping = 10f;		
	[SerializeField] private float distance = 3.0f;
	[SerializeField] private float height = 3.0f;
	[SerializeField] private float damping = 5.0f;
	[SerializeField] private bool smoothRotation = true;
	[SerializeField] private bool followBehind = true;

	void FixedUpdate () 
	{
		Vector3 wantedPosition;
		if(followBehind)
			wantedPosition = target.TransformPoint(0, height, -distance);
		else
			wantedPosition = target.TransformPoint(0, height, distance);

		transform.position = Vector3.Lerp (transform.position, wantedPosition, Time.deltaTime * damping);

		if (smoothRotation) {
			Quaternion wantedRotation = Quaternion.LookRotation(target.position - transform.position, target.up);
			transform.rotation = Quaternion.Slerp (transform.rotation, wantedRotation, Time.deltaTime * rotationDamping);
		}
		else transform.LookAt (target, target.up);
	}
}