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Question by PrimeDerektive · Jun 02, 2010 at 04:11 AM · getcomponentvariablesaccessing

Accessing other gameobject's script variables : why doesn't this work?

I have my player (tagged Player), and he has a script, called PlayerStatus.js. In a child object of the player, called projectileLauncher, I'm trying to access the strength variable from the PlayerStatus script on the player, but getting a null reference exception.

Here is the code I'm currently using (simplified) in projectileLauncher.js:

private var player : GameObject; private var strength : int;

function Start(){

 player = GameObject.FindWithTag("Player");
 strength = player.GetComponent(PlayerStatus).strength;

}

What am I doing wrong?

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Answer by Lenn · Dec 29, 2010 at 03:30 AM

Use 'parent' property instead of FindWithTag. I've found that it is far more reliable. Logically too it makes more sense -- being that you're in projectileLauncher a child of player (why go 'looking' for it?).

private var player : PlayerStatus; private var strength : int;

 function Start(){
      player = transform.parent.gameObject.GetComponent(PlayerStatus);
      strength = player.strength;
 }

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avatar image Dane411 · Jun 19, 2015 at 06:10 AM 0
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function Start(){ player = transform.parent.gameObject.GetComponent(); strength = player.strength; }

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Answer by Cap · Jun 03, 2010 at 11:49 AM

You need to use GetComponentInChildren since the script is attached to a child of the object you're referencing (player). GetComponent will only return components attached to the referenced object directly.

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