Unity - Interacting with objects - opening the door

// THIS SCRIPT IS EXPLAINED HERE:
// https://unity-is-easy.blogspot.com/2025/01/interacting-with-objects-in-unity.html
// VISIT MY PAGE TO LEARN SOME UNITY :)

using UnityEngine;

public class DoorController : MonoBehaviour
{
    public GameObject door;
    public float openRot = 115; // angle when door is open
    public float closeRot = 0; // angle when door is closed
    public float speed = 2; // speed of opening/closing door
    public bool opening; // true or false if open

    public Transform player; // Reference to the player (drag the player object here in the Inspector)
    public float activationDistance = 3f; // Distance threshold for interaction


    // Update is called once per frame
    void Update()
    {
        // Calculate distance between player and door
        float distance = Vector3.Distance(player.position, transform.position);

        Vector3 currentRot = door.transform.localEulerAngles;
        if (opening)
        {
            if (currentRot.y < openRot)
            {
                door.transform.localEulerAngles = Vector3.Lerp(currentRot, new Vector3(currentRot.x, openRot, currentRot.z), speed * Time.deltaTime);
            }
        }
        else
        {
            if (currentRot.y > closeRot)
            {
                door.transform.localEulerAngles = Vector3.Lerp(currentRot, new Vector3(currentRot.x, closeRot, currentRot.z), speed * Time.deltaTime);
            }
        }

        // Check if player is close enough and presses the 'F' key
        if (distance <= activationDistance && Input.GetKeyDown(KeyCode.F))
        {
            ToggleDoor();
        }


    }

    public void ToggleDoor()
    {
        opening = !opening;
    }
}