Skateboarding Mechanic in 2D (align to ramp normals)

AlignToNormals2D

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

public class AllightToNormal : MonoBehaviour
{


    public float speed;

    void OnCollisionStay2D(Collision2D col)
    {
       
        Debug.DrawLine(transform.position, col.contacts[0].point, Color.green);

        var newNormal = new Vector2(transform.position.x, transform.position.y) - col.contacts[0].point;

        transform.up =  Vector2.Lerp(transform.up, newNormal, 20f * Time.deltaTime);
        // transform.up = col.transform.up;
        //regular vector up rotation on collision



    }


    private void Update()
    {
        //basic input
        Rigidbody2D rb = GetComponent<Rigidbody2D>();
        rb.velocity = new Vector2 (Input.GetAxis("Horizontal") * speed, rb.velocity.y);

    }


}