NullReferenceException: Object reference not set to an instance of an object LookAt.Update () (at Assets/Scripts/LookAt.js:11)

[IMTRIGGERHAPPY9]

how would i go about looking at the ‘other’ in OnTriggerEnter??? the two are in different gameobjects so the OnTriggerEnter is on one gameobject, but i want to send the trigger/object that collided to another object that then looks at that target, but for the life of me cant figure it out here is my current set up…

attackRTriggereStay.JS

@HideInInspector 
var targetAquired = false;
var attackTarget; 

function OnTriggerEnter (other : Collider) {
	
	print(other);
	print(targetAquired);
	
	if(other.gameObject.CompareTag ("enemy")){
		
		attackTarget = other;
		targetAquired = true;
		
		print(attackTarget);
		print("targetAquired");
	}
		
}

function OnTriggerExit (other : Collider) {

if(other.gameObject.CompareTag ("enemy")){
		
		targetAquired = false;
		
		print(attackTarget);
		print(targetAquired);
	}

}

LookAt.JS

var getTrigger : attackRTriggerStay;
var getTarget : attackRTriggerStay;

function Start(){

getTrigger = GetComponent(attackRTriggerStay);


}

function Update () {
	
	getTarget =gameObject.GetComponent(attackRTriggerStay);
	
	if(getTrigger.targetAquired == true){
	
		transform.LookAt(getTarget.other);
}

}

[DaveA]

I think you want to LookAt other.transform

[fredpointzero]

You cannot access to the other variable as it is a local variable of the OnTriggerEnter method.

you should do the following :

• use a TargetComp var to store the component attackRTriggerStay (it seems that it will not change dynamicly)
• Reset to null the attackTarget when no target is available
• Set the gameObject to the attackTarget (not the collider) : attackTarget = other.gameObject
• You want to lookAt a direction, not a gameObject

Code :

function Start()
{
  TargetComp = gameObject.GetComponent(attackRTriggerStay);
}

function Update(){
  if(TargetComp.attackTarget != null){

    // Use some smoothing here
    transform.rotation = Quaternion.Lerp(
        transform.rotation,
        Quaternion.LookAt(
           TargetComp.attackTarget.transform.position - transform.position
        ), 
        Time.time
    );
  }
}