Shooting on click odd error...

Question

I have a button and when clicked it shoots a sphere.

But even though my script works well I still get an error:

Object Reference not set to instance of Object.

Here is my code:

var windowRect = Rect (200, 150, 100, 100); var projectile : Rigidbody; var speed = 20;

function OnGUI () { 
   windowRect = GUI.Window (0, windowRect, DoMyWindow, "");
}

// Make the contents of the window

function DoMyWindow (windowID : int) { 
   if (GUI.Button (Rect (0,0,100,100), "SHOOT"))
      var instantiatedProjectile : Rigidbody = Instantiate( projectile, transform.position, transform.rotation );

   instantiatedProjectile.velocity = transform.TransformDirection( Vector3(0, 0, speed ) ); 
   Physics.IgnoreCollision( instantiatedProjectile.collider, transform.root.collider );
   print ("Got a click");
}

Oddly even if I did not set instance of Object it still shoots the correct Prefab.

Please Help. Thanks!

Answer 1

Best Answer

Answer by Eric5h5 · Jul 03, 2010 at 06:27 PM

Your if statement needs to have all the relevant lines enclosed in brackets. Right now only the first line is being executed when the if statement is true, and the rest of the code is always executed, which clearly won't work since instantiatedProjectile isn't defined.

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MikezNesh · Jul 03, 2010 at 11:37 PM 0

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Oops... thanks!

MikezNesh · Jul 03, 2010 at 11:40 PM 0

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Another Problem my Ignore Collision gets an error: "Ignore Collision failed. Both colliders need to be active when calling this IgnoreCollision."

Eric5h5 · Jul 04, 2010 at 12:39 AM 0

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@$$anonymous$$ikezNesh: seems like a self-explanatory error message.

MikezNesh · Jul 04, 2010 at 04:23 PM 0

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How would I "activate" my colliders? They both are applied....

Eric5h5 · Jul 04, 2010 at 05:15 PM 0

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@$$anonymous$$ikezNesh: but are the game objects active?

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Shooting on click odd error...

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