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Question by sometimessean · Apr 11, 2012 at 11:11 PM · methods

Simply calling a method from another script :(

I'm new to Unity (via AS3), and have scoured the forum trying different things, but I am proper stuck. Must be a n00bie hurdle :(

All I want to do is control a camera rotation with a GUI button and, at present, my error is "Unexpected token: cam". I would really love some help :)

My ButtonScript.js is...

 var customSkin:GUISkin;

var cam: CameraScript;

function Start () {

}

function Update () {

}

function OnGUI(){ if(GUI.Button( Rect(10, 10, 320, 80), "Cha...")) { cam: GameObject.FindWithTag("MainCamera").GetComponent(CameraScript); cam.moveCameraPlus(); } }

and my CameraScript.js

 var target:Transform;

function Start () { transform.LookAt(target); }

function Update () { moveHorz = Input.GetAxis("Horizontal"); if (moveHorz > 0){ moveCameraPlus(); } else if (moveHorz < 0){ moveCameraNeg(); } }

public function moveCameraPlus () { transform.LookAt(target); transform.Translate(Vector3(0,100,0).right * (Time.deltaTime)); }

public function moveCameraNeg () { transform.LookAt(target); transform.Translate(Vector3(0,100,0).left * (Time.deltaTime)); }

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Answer by aldonaletto · Apr 11, 2012 at 11:20 PM

There's an error: you're not assigning correctly the CameraScript to cam:

function OnGUI(){ 
  if(GUI.Button( Rect(10, 10, 320, 80), "Cha...")) { 
    cam = GameObject.FindWithTag("MainCamera").GetComponent(CameraScript);
    cam.moveCameraPlus(); 
  } 
}
But there's a property available to access the main camera directly:

function OnGUI(){ 
  if(GUI.Button( Rect(10, 10, 320, 80), "Cha...")) { 
    cam = Camera.main.GetComponent(CameraScript);
    cam.moveCameraPlus(); 
  } 
}
Or - better yet - you could cache the camera script in Start:

function Start(){ cam = Camera.main.GetComponent(CameraScript); }

function OnGUI(){ if(GUI.Button( Rect(10, 10, 320, 80), "Cha...")) { cam.moveCameraPlus(); // just use the cached camera } }

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avatar image aldonaletto · Apr 12, 2012 at 02:59 AM 0
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Oops! I made a mistake in Start - answer is fixed now.

avatar image sometimessean · Apr 12, 2012 at 05:07 PM 0
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Works a treat, Aldo. Thanks a lot! $$anonymous$$y first hurdle is now behind me ;-)

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