Can't instantiate a rigidbody

Questions & Answers
1

Here is my code:

var PlayerSpeed : int;

var PlayerLives : int;

static var PlayerScore : int;

var Projectile : Rigidbody;

function Update()
{

//Move Player
amtToMove = (PlayerSpeed*Input.GetAxis("Horizontal")) * Time.deltaTime;

transform.Translate(Vector3.right*amtToMove);

amtToMove = (PlayerSpeed*Input.GetAxis("Vertical")) * Time.deltaTime;

transform.Translate(Vector3.up*amtToMove);

if(Input.GetKeyDown("space"))
{
	var tempProjectile : Rigidbody;
	
	tempProjectile = Instantiate(Projectile,transform.positision,transform.rotation);
}

}

function OnGUI()
{

GUI.Label(Rect(10,10,200,50),"Score: " + PlayerScore);
GUI.Label(Rect(10,30,200,50),"Lives: " + PlayerLives);

}

When I test it, I keep getting the an error message in the console tab:

NullReferenceException: Object reference not set to an instance of an object
PlayerScript.Update () (at Assets/Scripts/PlayerScript.js:25)

I’m not sure what I’m doing wrong and was wondering if someone could help me solve this issue.

2

You should be instantiating from a game object prefab and getting the rigid body component from that game object.

// SLOT OF GAME OBJECT PROJECTILE PREFAB
var projectile : GameObject;

// THIS CODE GOES INSIDE KEYDOWN
var projObj : GameObject;
projObj = Instantiate(projectile, transform.position, transform.rotation);

var projRig : Rigidbody = projObj.rigidbody;