How to disable a script with OnTriggerEnter?

Questions & Answers
1

I am trying to disable two scripts I have on two different game objects after a collision enters a trigger. I am not sure how to set it up becasue I keep getting errors for everything I try. Thanks for any advice and your time. Here is my script:

#pragma strict

var cameraFollow : CameraFollow;
var planeSelfMove : PlaneSelfMove;

function OnTriggerEnter( other : Collider )
{	
	
	if(other.gameObject.tag == "CameraTrigger")
	{
		cameraFollow = gameObject.GetComponent(CameraFollow).enabled = false;
		planeSelfMove = gameObject.GetComponent(PlaneSelfMove).enabled = false;
	}
}

Edit: I have changed my script to this (below) thanks to sharpshot124 because well it makes sense but now I get this null reference error:
NullReferenceException: Object reference not set to an instance of an object
StopCamera.OnTriggerEnter (UnityEngine.Collider collider) line 13

Line 13 is the cameraFollow.enabled = false;

So I am going into detail about my problem(which I should have done first). Here is what I am trying to do:

I am making a top-down shooter and the camera is in the orthographic view, I have “camera collision” around the edges so the player can’t go outside the camera’s view. I am using the top(top of the screen) camera collision to act as the collision for triggers to do things like spawn enemies and other things. And that works totally fine. But I get all the way through my level to the area where the boss fight is and I want to stop the camera from moving (it has a script attached to it that makes it move at a certain speed constantly). I changed my script to the necessities and to what sharpshot124 suggested. The game plays but when the top camera collision enters that trigger nothing happens and I get that error. The top camera collision does have a rigidbody so thats fine I believe. Also I’m attaching the script to the top camera collider. The trigger I am trying to get to work is named “SpawntriggerStopCamera”. Can anyone shed some light as to why I get that error? Again here is the revised script:

   #pragma strict

    var cameraFollow : CameraFollow;
    
    function OnTriggerEnter( collider : Collider )
    {	
    	
    	if(collider.gameObject.name == "SpawntriggerStopCamera")
    	{
    		cameraFollow = gameObject.GetComponent(CameraFollow);
                    cameraFollow.enabled = false;
    	}
    }
2

lines 11 and 12 are invalid. u cannot have 2 statements on one line change it to this

cameraFollow = gameObject.GetComponent(CameraFollow);
cameraFollow.enabled = false;
planeSelfMove = gameObject.GetComponent(PlaneSelfMove);
planeSelfMove.enabled = false;

also make sure that one of the objects has a non trigger collider and one object has a rigidbody, otherwise the function wont be called at all.

3

hi
script is a Component . u must access to your script component to disable it

u can access it in 2 way ;

1 : if script attached to external object u must use this code

    gameobject.find("objectname").getcomponent(scriptname).enable=false;

2 : if u want to disable component that attached to object by itself , u can use this code

    transform.getcomponent(scraiptname).enable=false;
4

Nobody here is giving you a clear answer.

I would set out your script like so:

#pragma strict

var topdownCam : GameObject;

private var cameraFollow: CameraFollow;
private var planeSelfMove: PlaneSelfMove;

function Start () {
     
     cameraFollow = topdownCam.GetComponent(CameraFollow);
     planeSelfMove = GetComponent(PlaneSelfMove);

}

function OnTriggerEnter (collider : Collider) {
    
     if (collider.game object.tag == "SpawntriggerStopCamera") {
          cameraFollow.enabled = false;
          planeSelfMove.enabled = false;
     }
}

I declared the script component references so that it wouldn’t slow your code each time when creating a new component reference. :slight_smile:

Hope that helps,

Klep

EDIT:

Now all you have to do is assign your TopCameraCollision object to the topdownCam variable in the Inspector, and you’re good to go! :slight_smile: