I am attempting to make a turret that will only track and shoot at the player if it is with in a certain radius. I found a good script on this site, but when I use it, unity will freeze up when my character enters the trigger area.

The code I am using is this:

private var target : Transform;

var damping = 6.0;

var smooth = true;

var bulletPrefab : Rigidbody;

var bulletSpeed : float = 100;





function OnTriggerEnter(otherCollider : Collider) {

    if (otherCollider.CompareTag("player"))

    {

        target = otherCollider.transform;

        Fire();

    }

}



function OnTriggerExit(otherCollider : Collider) {

    if (otherCollider.CompareTag("player"))

    {

        target = null;

        StopCoroutine("Fire");  // aborts the currently running Fire() coroutine

    }

}



function Fire()

{

    while (target != null)

    {

        var nextFire = Time.time + 1;

        while (Time.time < nextFire)

        {



          if (smooth)

          {

              // Look at and dampen the rotation

              var rotation = Quaternion.LookRotation(target.position - transform.position);

              transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * damping);

          }

          else

          {

              // Just lookat

               transform.LookAt(target);

          }



        }



        // fire!

        var bullet = Instantiate(bulletPrefab, transform.position, transform.rotation);

        bullet.velocity = transform.forward * bulletSpeed;

    }

}

I have my fireball prefab linked to the bulletPrefab, my character is tagged "player", and I am using a spherical collider for the trigger. Any ideas why my game would crash?