Script Referencing

Questions & Answers
1

Could someone explain me how do I use one scripts elements in other scripts (GetComponent), and also help me with following script ?

Here’s the script cameraSwitcher.js :

var MainCamera : Camera;    
var FPCamera : Camera;    
var Active : boolean = false;

function Start(){    
   MainCamera.enabled = true;
   FPCamera.enabled = false;
}
    
function Update(){    
if(Input.GetKeyDown("tab") && Active == false)    
{    
   MainCamera.enabled = false;    
   FPCamera.enabled = true;    
   Active = true;    
}    
else if(Input.GetKeyDown("tab") && Active == true)   
{    
   MainCamera.enabled = true;    
   FPCamera.enabled = false;    
   Active = false;
}
}

I want to create second script that would control whether the gameObject I choose is visible or not.

So, if MainCamera is enabled gameObject.renderer is enabled too.

And, if MainCamera is disabled gameObject.renderer is also disabled.

I just don’t understand how to do it I looked for scrpiting reference on Unity’s site but I still can’t quite figure it out.

2

You can use GameObject.Find("object_name") to get a reference to the object.

 // object_name is the name you've given the object in the inspector
 myobject=GameObject.Find("object_name");

You can then do whatever you like to it...

  myobject.transform.y += 10; // moves it up 10
  myobject.active=false;  // makes it inactive
3

Firstly, you could simplify the Update function of cameraSwitcher.js this way:

function Update(){    
  if (Input.GetKeyDown("tab"))    
  {
    Active = !Active;    
    MainCamera.enabled = !Active;    
    FPCamera.enabled = Active;    
  }    
}

You have two ways to access Active from other scripts:

1- If there exists one only cameraSwitcher instance in your program, you can declare the variable Active as static in cameraSwitcher.js:

static var Active: boolean = false;

then access it in other scripts like this:

    if (cameraSwitcher.Active){

2- If you have other instances of cameraSwitcher, you must have some reference (transform, collider, gameobject etc.) to the object whose Active variable you’re interested in. You can have a Transform variable in the other script and assign the object in the Inspector:

other script:

var camSwitcherObj: Transform; // drag the object here
var camSwitcher: cameraSwitcher; // this will contain the script reference

function Start(){ // get a script reference at Start to save time
    camSwitcher = camSwitcherObj.GetComponent(cameraSwitcher);
}

// then you can use camSwitcher as the script reference:
    if (camSwitcher.Active){