Basic Camera in Unity (C#)

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

public class Cam : MonoBehaviour
{
    [SerializeField] private GameObject TargetObject;

    [Header ("Position")]
    [SerializeField] private float DeltaX;
    [SerializeField] private float DeltaY;
    [SerializeField] private float DeltaZ;

    [Header("Rotation")]
    [SerializeField] private float RotationDeltaX;
    [SerializeField] private float RotationDeltaY;

    [Header("Extra Options")]
    [SerializeField] private bool LockRotation;

    private void SetPosition()
    {
        float CurrentX = TargetObject.transform.position.x + DeltaX;
        float CurrentY = TargetObject.transform.position.y + DeltaY;
        float CurrentZ = TargetObject.transform.position.z - DeltaZ;

        float CurrentRotationX, CurrentRotationY;
        if (LockRotation)
        {
            CurrentRotationX = RotationDeltaX;
            CurrentRotationY = RotationDeltaY;
        }
        else
        {
            CurrentRotationX = TargetObject.transform.rotation.eulerAngles.x + RotationDeltaX;
            CurrentRotationY = TargetObject.transform.rotation.eulerAngles.y + RotationDeltaY;
        }
        transform.position = new Vector3(CurrentX, CurrentY, CurrentZ);
        transform.rotation = Quaternion.Euler(new Vector3(CurrentRotationX, CurrentRotationY, TargetObject.transform.rotation.eulerAngles.z));
    }

    // Start is called before the first frame update
    void Start()
    {
        LockRotation = true;
    }

    // Update is called once per frame
    void Update()
    {
        SetPosition();
    }
}