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Question by acuaro · May 18, 2019 at 12:53 PM · transformparenttag

transform.parent.tag not working?

In my game you can pick up a weapon like a laser sniper. I made the laser sniper but the problem is when i put in this line of code if (transform.parent != null && transform.parent.tag == "Player1") and inside put my firing function so the player can only shoot the weapon once they got it in there hands. The firing function worked without that "if " function and i don't know whats wrong heres my script for the laser sniper thx if you could help :D.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class LaserWeapon : MonoBehaviour
 {
     public GameObject projectile;
     public Transform shotPoint;
 
     private float timeBtwShots;
     public float startTimeBtwShots;
 
 
 
 
 
 
     // Start is called before the first frame update
     void OnCollisionEnter2D(Collision2D coll)
     {
         if (coll.gameObject.name == "Player1")
         {
             transform.parent = coll.gameObject.transform;
 
         }
         if (coll.gameObject.name == "Player2")
         {
             transform.parent = coll.gameObject.transform;
         }
     }
 
     // Update is called once per frame
     private void Update()
     {
 
 
 
         if (transform.parent != null && transform.parent.tag == "Player1") // ****NOT WORKING****
         {
             if (timeBtwShots <= 0)
             {
                 if (Input.GetKeyDown(KeyCode.F))
                 {
                     Instantiate(projectile, shotPoint.position, transform.rotation);
                     timeBtwShots = startTimeBtwShots;
                 }
                 else
                 {
                     timeBtwShots -= Time.deltaTime;
                 }
             }
 
         }
 
 
 
     }
 }
 


Here is the error i'm getting NullReferenceException: Object reference not set to an instance of an object LaserWeapon.Update () (at Assets/SCRIPTS/LaserWeapon.cs:38)

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Answer by $$anonymous$$ · Oct 08, 2019 at 07:26 PM

@acuaro transform.parent is null.

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avatar image tormentoarmagedoom · Oct 08, 2019 at 07:32 PM 1
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But if parent is null, when checking

if (transform.parent != null && ....)

just should skip the if.

@acuaro CAn you add this line just before that if?

Debug.Log (transform.parent);

So you can check at the consolo the value of parent all frames.

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