Shooting projectiles once per second.

Questions & Answers
1

I am trying to get my game to "shoot" a projectile out from the location of an empty object. As of now it shoots every two seconds BUT it shoots a ton at once.

Here is my code for shooting. 

    function Shoot(seconds)
{
    if(seconds!=savedTime)
    {
        var bullet : GameObject = Instantiate(bulletPrefab ,transform.Find("projRelease").transform.position ,Quaternion.identity);

        bullet.rigidbody.AddForce(transform.forward * 1000);

        savedTime=seconds;
    }
}

And here is the part for seconds. 

function Update () 
{
    if(LookAtTarget)
    {
        var rotate = Quaternion.LookRotation(LookAtTarget.position - transform.position);

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

        var seconds : int = Time.time;
        var oddeven = (seconds % 2);

    if(oddeven)
    {
        Shoot(seconds);
    }

    }
}

I am also getting this error.

Invalid Cast Exception : Cannot cast from source type to destination type.

Thanks in advance :)

2 
function Start () {
    InvokeRepeating("Shoot", 1.0, 1.0);
}

function Shoot () {
    //Do shooty stuff here
}