Talking To Other Scripts

Question

Hello,

I don't know if I'm misunderstanding the key elements here for a script to talk to another script, but it always seems to be an on, off thing (Null Refs).

Okay,

I basically need one script to talk to another. These scripts are in the same parent. Here is my layout:

Parent > Parent > Child1 | Child2 | Child3

All I want is for Child 3 to talk to Child 1

Child 3 detects a trigger collision, and needs to set a boolean in Child 1 to true if a collision occurs.

Its that simple, and I use this methord so many times before, and sometimes it works, sometimes it doesn't:

 var other : ScriptName;
 other = gameObject.GetComponent("ScriptName");
 other.boolean = true;

Could someone please explain to me why this particular communication isn't working?

Just out of interest, is there a way to do this? :

 var TriggerDetection : GameObject;
 
 function Update(){
    if(TriggerDetection.ScriptName.boolean == true){

Answer 1

Best Answer

Answer by FTheCloud · Aug 04, 2011 at 05:05 PM

Use BroadcastMessage. It allows you to literally tells the other script that its colliding and what to do when it's colliding.

Try this for child3:

var Child1 : GameObject;
var Collide : boolean = true;
function OnCollisionEnter (collision : Collision) {
    Child1.BroadcastMessage("Message", Collide, SendMessageOptions.DontRequireReceiver);
}

And this for Child1:

function Message (Collide : boolean) {
if (Collide){
//Whatever...
    }
}

These are just simple examples of what you can do. Go crazy

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oliver-jones · Aug 04, 2011 at 05:10 PM 0

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Sweeeeet! It works -- Could I have the child1 : GameObject, to be an array? So it sends the message to multiple objects? Because when I try that, I get a null.

Talking To Other Scripts

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