What am I doing wrong when disabling a script?

Question

Here is my code, i simply want to disable a script upon startup but I'm having serious issues with it. I've been following another post http://answers.unity3d.com/questions/548362/enabledisable-script-from-another-script-c.html

I'm following it step by step but still seem to be having trouble :/

Here is the code:

 public moveTowardsPlayer movement;
 
     void Start()
     {
         movement = GetComponent<moveTowardsPlayer>();
         movement.enabled = false;
     }

I just want to disable the moveTowardsPlayer script when the scene begins but I get this error: Object reference not set to an instance of an object

Can anyone shed some light for me?

Answer 1

Best Answer

Answer by Joxno · Aug 17, 2014 at 04:53 PM

The problem here is that your moveTowardsPlayer script MUST be present on the same game object that this script is attached to due to the reason that GetComponent retrieves a component from 'this' gameObject.

If GetComponent does not find a script it returns null, therefore when you do movement.enabled = false; movement does not have a reference therefore giving you the object reference error.

The solution to this is to first retrieve the gameObject that moveTowardsPlayer is present on, and then disable the script.

 movement = GameObject.Find("Player").GetComponent<moveTowardsPlayer>();
 movement.enabled = false;

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JayFitz91 · Aug 17, 2014 at 08:00 PM 0

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Ah I see now, I thought it just disabled the script as if it were a global event. Thanks for the input Joxno

What am I doing wrong when disabling a script?

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