How to add collider2D to LineRenderer?

Hello guys, Here is the code for drawing line in game. But I want gameobjects to collide with lines I draw in game. I think adding collider2D to LineRenderer will fix the problem. Can anyone help me ?

using UnityEngine;

using System.Collections;

using System.Collections.Generic;

public class DrawLine : MonoBehaviour {

 private LineRenderer line;
 private bool isMousePressed;
 private List<Vector3> pointsList;
 private Vector3 mousePos;

 // Structure for line points
 struct myLine
 {
     public Vector3 StartPoint;
     public Vector3 EndPoint;
 };
 //    -----------------------------------    
 void Awake()
 {
     // Create line renderer component and set its property
     line = gameObject.AddComponent<LineRenderer>();
     line.material =  new Material(Shader.Find("Particles/Additive"));
     line.SetVertexCount(0);
     line.SetWidth(0.1f,0.1f);
     line.SetColors(Color.green, Color.green);
     line.useWorldSpace = true;    
     isMousePressed = false;
     pointsList = new List<Vector3>();

 }
 
 void Update () 
 {
     // If mouse button down, remove old line and set its color to green
     if(Input.GetMouseButtonDown(0))
     {
         isMousePressed = true;
         line.SetVertexCount(0);
         pointsList.RemoveRange(0,pointsList.Count);
         line.SetColors(Color.green, Color.green);
     }
     else if(Input.GetMouseButtonUp(0))
     {
         isMousePressed = false;
     }
     // Drawing line when mouse is moving(presses)
     if(isMousePressed)
     {
         mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
         mousePos.z=0;
         if (!pointsList.Contains (mousePos)) 
         {
         pointsList.Add (mousePos);
         line.SetVertexCount (pointsList.Count);
         line.SetPosition (pointsList.Count - 1, (Vector3)pointsList [pointsList.Count - 1]); } } }