Rope Mechanic

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

public class RopeController : MonoBehaviour
{
    public GameObject ropeShooter;

    private SpringJoint2D rope;
    public int maxDurationRope;
    private int ropeFrameCount;

    public LineRenderer lineRenderer;


    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            Fire();
        }
    }

    void LateUpdate()
    {
        if(rope != null)
        {
            lineRenderer.enabled = true;
            lineRenderer.SetVertexCount (2);
            lineRenderer.SetPosition(0, ropeShooter.transform.position);
            lineRenderer.SetPosition(1, rope.connectedAnchor);
        }else
        {
            lineRenderer.enabled = false;
        }
    }

        void FixedUpdate()
    {
        if (rope != null)
        {
            ropeFrameCount++;

            if (ropeFrameCount > maxDurationRope)
            {
                GameObject.DestroyImmediate(rope);
                ropeFrameCount = 0;
            }
        }
    }

    void Fire()
    {
        Vector3 mousePosition = Camera.main.ScreenToWorldPoint (Input.mousePosition);
        Vector3 position = ropeShooter.transform.position;
        Vector3 direction = mousePosition - position;

        RaycastHit2D hit = Physics2D.Raycast (position, direction, Mathf.Infinity);

        if (hit.collider != null)
        {
            SpringJoint2D newRope = ropeShooter.AddComponent<SpringJoint2D> ();
            newRope.enableCollision = false;
            newRope.frequency = 0.2f;
            newRope.connectedAnchor = hit.point;
            newRope.enabled = true;

            GameObject.DestroyImmediate(rope);
            rope = newRope;
            ropeFrameCount = 0;
        }
    }
}