my object will only jump one time

my object will only jump one time but, it is suppost to jump multipule times. i don’t know what is wrong with my code.
#pragma strict

var rotationSpeed = 100;
var jumpHight = 8;

private var isFalling = false;

function Update () 
{
//handle ball rotation.
 var rotation : float = Input.GetAxis ("Horizontal") * rotationSpeed;
 rotation *= Time.deltaTime;
   GetComponent.().AddRelativeTorque (Vector3.back * rotation);

 if (Input.GetKeyDown(KeyCode. Space) && isFalling == false);
   {
    GetComponent.<Rigidbody>().velocity.y = jumpHight;
    }
    isFalling = true;
{
Function  onCollisionStay ();
{
isFalling = false;
}

Wrong function name

I think I understand the problem. The only reason your ball only jumps once is because the message sent to this script is _OnCollisionStay_ and not _onCollisionStay_; you are just missing a capital O.
 function  OnCollisionStay (collisionInfo : Collision)
 {
     isFalling = false;
 }

I noticed that you tend to put semicolons after the brackets when declaring a function, which surprises me (I am not an expert on javascript but I am pretty sure this is a mistake (if it isn’t, I hope you’ll forgive me for saying so :slight_smile: ) )

if (Input.GetKeyDown(KeyCode. Space) && isFalling == false) // Take out the semicolon at the end ;)
    {
         GetComponent.<Rigidbody>().velocity.y = jumpHight;
     }

I hope this helps!

Thank you so much. I did what you said and now it works. :slight_smile: