How to detect wich weapon equipped and select method

i made two weapon types in my game, a machine gunn and a pistol. I want my pistol to shoot normal and my machine gun should be full auto. but how can i make it so that my script detects wich weapon i have selected and change between auto and normal? sorry for my bad english by the way

Weapon script:

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

public class Weapon : MonoBehaviour { public float damage = 10f; public float range = 100f; public Text ammodisplay;

 public int maxAmmo = 10;
 public int Ammo = 35;
 public bool ammoEmpty;

 public GameObject gunModel;

 private PickUp pickUp;

 public Text ammoText;

 public float aimSpeed = 4;

 public AudioClip gunShotClip;
 public AudioClip reloadClip;
 public AudioSource audSource;
 public int currentAmmo;
 public float reloadTime = 5f;
 private bool isReloading = false;

 public float recoilStrength = 2f;

 public Camera fpsCam;

 public Vector3 normalPosition;
 public Vector3 aimingPosition;

 public bool ShootEnable = true;
 public bool isAiming = false;


 // Update is called once per frame
 void Start()
 {
     pickUp = FindObjectOfType<PickUp>();

     audSource = GetComponent<AudioSource>();

     currentAmmo = maxAmmo;

     ShootEnable = true;
 }

 void OnEnable()
 {
     isReloading = false;
 }

 void Update()
 {
     ammoText.text = ("Ammo: " + currentAmmo + "/" + Ammo);

     if (currentAmmo <= 0)
     {
         ammoEmpty = true;
     }
     else
     {
         ammoEmpty = false;
     }

     if (Input.GetKeyDown(KeyCode.L))
     {
         Ammo += 10;
     }

     if (Input.GetKeyDown(KeyCode.R) && currentAmmo != maxAmmo && Ammo != 0 && isReloading == false)
     {           
             StartCoroutine(Reload());
             return;            
     }

     if(currentAmmo <= 0)
     {
         ShootEnable = false;
     }

     if(currentAmmo >= 0)
     {
         ShootEnable = true;
     }

     if (Input.GetButtonDown("Fire1") && ShootEnable == true && ammoEmpty == false && isReloading == false) //&& != MachineGun
     {
         Shoot();
     }

     //if (Input.GetButton("Fire1") && ShootEnable == true && ammoEmpty == false && isReloading == false && != Pistol) 
     //{
     //    MachineGunShoot();
     //}

     //ammodisplay.text = ("Munition:") + currentAmmo.ToString();
     if (Input.GetKey(KeyCode.Mouse1))
     {
         isAiming = true;
     }

     else if (!Input.GetKey(KeyCode.Mouse1))
     {
         isAiming = false;
     }
 }

 private void FixedUpdate()
 {
     if (isAiming == true)
     {
         gunModel.transform.localPosition = Vector3.Lerp(gunModel.transform.localPosition, aimingPosition, Time.deltaTime * aimSpeed);
     }
     else if (isAiming == false)
     {
         gunModel.transform.localPosition = Vector3.Lerp(gunModel.transform.localPosition, normalPosition, Time.deltaTime * aimSpeed);
     }
 }

 public IEnumerator Reload()
 {

     audSource.PlayOneShot(reloadClip);
     isReloading = true;

     yield return new WaitForSeconds(reloadTime);

     int totalAmmo = currentAmmo + Ammo;
     if (totalAmmo <= maxAmmo)
     {
         currentAmmo = totalAmmo;
         Ammo = 0;
     }
     else
     {
         int shots = maxAmmo - currentAmmo;
         currentAmmo = 10;
         Ammo -= shots;
     }


     isReloading = false;

 }

 void Shoot()
 {
     audSource.PlayOneShot(gunShotClip);
     currentAmmo--;

     Vector3 gunModelLocalPosition = gunModel.transform.localPosition;
     gunModelLocalPosition.z = gunModelLocalPosition.z - recoilStrength;
     gunModel.transform.localPosition = gunModelLocalPosition;

     RaycastHit hit;
     if (Physics.Raycast(fpsCam.transform.position, fpsCam.transform.forward, out hit, range))
         {
         Debug.Log(hit.transform.name);

         Leben leben = hit.transform.GetComponent<Leben>();
         if (leben != null)
         {
             leben.TakeDamage(damage);
         }
     }
 }

}

PickUp Script

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

public class PickUp : MonoBehaviour

{ private Weapon weapon;

 private ItemDataBase itemDataBase;
 private ItemObj itemObj;
 private ToolTipButton toolTipB;
 public bool reloadSound;

 public float transformX = 0.15f;
 public float transformY = 0.15f;
 public float transformZ = 0.15f;

 public Weapon gunScript;
 public WeaponM machinegunScript;

 public Rigidbody rb;
 public BoxCollider coll;
 public Transform player, gunContainer, fpsCam;

 public float pickUpRange;
 public float dropForwardForce, dropUpwardForce;

 private Inventory inventory;


 public bool equipped;
 public static bool slotFull;

 void Awake()
 {
     toolTipB = GameObject.FindObjectOfType<ToolTipButton>();
     weapon = GameObject.FindObjectOfType<Weapon>();
     inventory = GameObject.FindObjectOfType<Inventory>();
     itemObj = GameObject.FindObjectOfType<ItemObj>();
 }

 private void Start()
 {

     if (!equipped)
     {
         gunScript.enabled = false;
         rb.isKinematic = false;
         coll.isTrigger = false;
     }

     if (equipped)
     {
         gunScript.enabled = true;
         coll.isTrigger = true;
         slotFull = true;
         rb.isKinematic = true;
         
     }
 }

 private void Update()
 {
     Vector3 distanceToPlayer = player.position - transform.position;
     if (!equipped && distanceToPlayer.magnitude <= pickUpRange && Input.GetKeyDown(KeyCode.E)) pickUp();
 
     
     if (equipped && Input.GetKeyDown(KeyCode.Q)) Drop();


 }

 public void pickUp()
 {
     reloadSound = true;

     equipped = true;
     slotFull = true;

     transform.SetParent(gunContainer);
     transform.localPosition = Vector3.zero;
     transform.localRotation = Quaternion.Euler(Vector3.zero);
     transform.localScale = new Vector3(transformX, transformY, transformZ);

     rb.isKinematic = true;
     coll.isTrigger = true;

     gunScript.enabled = true;

    // weapon.ammodisplay.gameObject.SetActive(true);
     

 }

 public void Drop()
 {
     reloadSound = false;

     equipped = false;
     slotFull = false;

     transform.SetParent(null);

     rb.isKinematic = false;
     coll.isTrigger = false;

     
     rb.AddForce(fpsCam.forward * dropForwardForce, ForceMode.Impulse);
     rb.AddForce(fpsCam.up * dropUpwardForce, ForceMode.Impulse);

     float random = Random.Range(-1f, 1f);
     rb.AddTorque(new Vector3(random, random, random)* 10);

     gunScript.enabled = false;
     //weapon.ammodisplay.gameObject.SetActive(false);
 }

}

Select weapon script(i got this from Brackeys) using System.Collections; using System.Collections.Generic; using UnityEngine;

public class WeaponSwitching : MonoBehaviour { public int selectedWeapon = 0; private Inventory inventory;

 // Start is called before the first frame update
 void Start()
 {
     inventory = GameObject.FindObjectOfType<Inventory>();

     SelectWeapon();
 }

 // Update is called once per frame
 void Update()
 {
     int previousSelectedWeapon = selectedWeapon;

     if(Input.GetAxis("Mouse ScrollWheel") > 0f && inventory.isShown == false)
     {
         if (selectedWeapon >= transform.childCount - 1)
             selectedWeapon = 0;
         else
             selectedWeapon++;
     }

     if (Input.GetAxis("Mouse ScrollWheel") < 0f && inventory.isShown == false)
     {
         if (selectedWeapon <= 0)
             selectedWeapon = transform.childCount - 1;
         else
             selectedWeapon--;
     }

     if (Input.GetKeyDown(KeyCode.Alpha1) && inventory.isShown == false)
     {
         selectedWeapon = 0;
     }

     if (Input.GetKeyDown(KeyCode.Alpha2) && transform.childCount >= 2 && inventory.isShown == false)
     {
         selectedWeapon = 1;
     }

     if (Input.GetKeyDown(KeyCode.Alpha3) && transform.childCount >= 3 && inventory.isShown == false)
     {
         selectedWeapon = 2;
     }

     if (Input.GetKeyDown(KeyCode.Alpha3) && transform.childCount >= 4 && inventory.isShown == false)
     {
         selectedWeapon = 3;
     }

     if (previousSelectedWeapon == selectedWeapon)
     {
         SelectWeapon();
     }
             
 }

 void SelectWeapon()
 {
     int i = 0;
     foreach(Transform weapon in transform)
     {
         if (i == selectedWeapon)
             weapon.gameObject.SetActive(true);
         else
             weapon.gameObject.SetActive(false);
         i++;
     }
 }

}