Question by CraftedGaming · Jun 12, 2017 at 08:43 AM · c#unity 4.6

How to check if either one of the script exist

I have a script called laserHandler.cs. It's suppose to handle both the Player and the Enemy's laser. I need to get the laser damage from the scripts of Player and Enemy. laserHandler.cs is a component of both Player and the Enemy game objects. So I wrote this in laserHandler.cs

     private void Start()
     {/*    Here we get the damage variable by accessing the parent's script    */
         if(tag == "Player")
         {
             damage = transform.parent.GetComponent<PlayerController>().GetDamage();
         }
         else
         {
             damage = transform.parent.GetComponent<enemyHandler>().GetDamage();
         }
     }

But then when I click play, the script fires an error saying NullReferenceException. This is caused since the parent has either one of the script "PlayerController" or "enemyHandler". Both these scripts have different functions and only GetDamage() and the damage variable are the same.