It is not possible to invoke an expression of type 'UnityEngine.Vector3'. help???

hi brand new to coding so yeah dont be hatin please because this is probably and easy error fix your im trying to setup raycasting to shoot out of my gun this is my error

It is not possible to invoke an expression of type ‘UnityEngine.Vector3’.

and this is my script

function Update(){
    if(Input.GetButtonDown("Fire1")){
        FireOneShot();
    }
}

function FireOneShot(){
    var direction = transform.TransformDirection(Vector2.forward);
    var hit : RaycastHit;
    var localOffset = transform.position (transform.up);
    
    if (Physics.Raycast (localOffset, direction, hit, 300)) {
        Debug.DrawLine (localOffset, hit.point, Color.cyan);
        // - send damage to object we hit - \\
        hit.collider.SendMessageUpwards("ApplyDamage", 1, SendMessageOptions.DontRequireReceiver);
    }
}   

help anyone please will be much aprreciated

Invoke requires the function to have 0 parameters.

function Invoke (methodName : String, time : float) : void

So, call the function and give it time, which is how often it will be called.

For your example:

Invoke("FireOneShot", 1.0) // which calls this function every 1.0 seconds.

Which doesn’t seem like the behavior you are looking for.

TransformDirection requires a Vector3.
This is your error:

var direction = transform.TransformDirection(Vector2.forward);  

it should be

 var direction = transform.TransformDirection(Vector3.forward);

Your error is in this line:

    var localOffset = transform.position (transform.up);

transform.position is a Vector3 value and you use it like a function which doesn’t work of course.

I guess you wanted something like this:

    var localOffset = transform.position;