Variable Becoming Null After Setting It

Hi,

I've created a class here called ShipController. ShipController is a component to a ship prefab that is instantiated by another script. After getting instantiated this other script then calls the Initialize() function. I put two debug statements in the code on lines 16 and 21. The log statement on line 16 correctly outputs the camera gameobject while the log statement on line 21 outputs null. I'm not sure why mainCam gets set in Initialize() but when FireWeapon() gets called mainCam is suddenly null. FireWeapon() never gets called before Initialize().

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class ShipController : MonoBehaviour
6. {
7.     public Camera mainCam;
8.  
9.     public List<GameObject> weapons;
10.  
11.     private int currentWeapon = 0;
12.  
13.     public void Initialize(Camera cam)
14.     {
15.         mainCam = cam;
16.         Debug.Log(mainCam);
17.     }
18.  
19.     public void FireWeapon()
20.     {
21.         Debug.Log(mainCam);
22.         weapons[currentWeapon].GetComponent<WeaponBase>().Fire(transform.position, mainCam);
23.     }
24. }

Please let me know what I'm doing wrong. Thanks!

 

Sound a lot like the same / similar issue as I explained over here. In short you probably reference the wrong object in one or both of the two cases. Add a context parameter to your Debug.Log statements to see which object(s) you're actually dealing with.

 

This was it! Thanks!