画线并添加对撞机

Question

我想知道如何绘制包含对撞机的线。我正在尝试做类似的事情：

我遵循了此网站教程： https://unitycoder.com/blog/2017/09/23/drawing-2d-lines-and-adding-collider-to-it/

但是它没有按我预期的那样工作，正在绘制线条，但是应该与线条碰撞的对象却没有碰撞。

我需要更改我的代码吗？

代码：

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

public class DrawLine2D : MonoBehaviour
{
    [SerializeField]
    protected LineRenderer m_LineRenderer;
    [SerializeField]
    protected bool m_AddCollider = false;
    [SerializeField]
    protected EdgeCollider2D m_EdgeCollider2D;
    [SerializeField]
    protected Camera m_Camera;
    protected List<Vector2> m_Points;


    protected virtual void Awake ()
    {
        if ( m_Camera == null ) {
            m_Camera = Camera.main;
        }
        m_Points = new List<Vector2> ();
    }

    protected virtual void Update ()
    {
        if ( Input.GetMouseButtonDown ( 0 ) )
        {
            Reset ();
        }
        if ( Input.GetMouseButton ( 0 ) )
        {
            Vector2 mousePosition = m_Camera.ScreenToWorldPoint ( Input.mousePosition );
            if ( !m_Points.Contains ( mousePosition ) )
            {
                m_Points.Add ( mousePosition );
                m_LineRenderer.positionCount = m_Points.Count;
                m_LineRenderer.SetPosition ( m_LineRenderer.positionCount - 1, mousePosition );
                if ( m_EdgeCollider2D != null && m_AddCollider && m_Points.Count > 1 )
                {
                    m_EdgeCollider2D.points = m_Points.ToArray ();
                }
            }
        }
    }

    protected virtual void Reset ()
    {
        if ( m_LineRenderer != null )
        {
            m_LineRenderer.positionCount = 0;
        }
        if ( m_Points != null )
        {
            m_Points.Clear ();
        }
        if ( m_EdgeCollider2D != null && m_AddCollider )
        {
            m_EdgeCollider2D.Reset ();
        }
    }

}