Mario Key Door in UnityHow to Recreate the Key Door from Super Mario Maker 2

Source Code for Key.cs

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

public class Key : MonoBehaviour{
    private SpringJoint2D spring;

    // Start is called before the first frame update
    void Start(){
        spring = GetComponent<SpringJoint2D>();
        GameObject backpack = GameObject.FindWithTag("Backpack");
        spring.connectedBody = backpack.GetComponent<Rigidbody2D>();
        spring.enabled = false;
    }
    private void OnTriggerEnter2D(Collider2D collision) {
        if(collision.gameObject.tag == "Player" && !spring.enabled){
            spring.enabled = true;
        }
    }

}

Source Code for Door.cs

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

public class Door : MonoBehaviour{
    public GameObject connectedDoor;
    public bool teleported = false;
    private GameObject player;

    // Start is called before the first frame update
    void Start(){
        player = GameObject.FindWithTag("Player");
    }

    // Update is called once per frame
    void Update(){
        if(teleported && Input.GetAxisRaw("Vertical") < 1){
            teleported = false;
        }
    }
    private void OnTriggerStay2D(Collider2D collision) {
        if(collision.gameObject.tag == "Player" && Input.GetAxisRaw("Vertical") == 1) {
            if(Input.GetAxisRaw("Vertical") == 1 && !teleported){
                player.transform.position = connectedDoor.transform.position;
                connectedDoor.GetComponent<Door>().teleported = true;
            }
        }
    }
}