How to shoot RayCast in center of screen?

Questions & Answers
1

I need some scripting help

My Code

#pragma strict
var damage : float = 1;

var bulletsinclip = 30;
var bulletsperclip = 30;
var clips = 3;

private var nextFireTime = 0.0;
var fireRate = .02;


function Update () {
if (Input.GetKeyDown (KeyCode.R)){
Reload();
}
if (Mathf.Abs(Input.GetAxis("Vertical")) > 0.1)
animation.CrossFade("Move");
else
animation.CrossFade("Idle");

if (Input.GetKeyDown (KeyCode.G)){
animation.Play("select");
}

if (Input.GetKeyDown (KeyCode.H)){
animation.Play("Put Away");
}

if(Input.GetMouseButton(0)){
if (Time.time - fireRate > nextFireTime)
nextFireTime = Time.time - Time.deltaTime;
while( nextFireTime < Time.time && bulletsinclip != 0) {
FireOneShot();
nextFireTime += fireRate;
}
}
}

function Reload(){
animation.Play("Reload", PlayMode.StopAll);
bulletsinclip = bulletsperclip;
clips --;
}

function FireOneShot(){
animation.Play("Auto");
bulletsinclip -= 1;

var direction = transform.TransformDirection(Vector3.forward);
var hit : RaycastHit;
var localOffset = GameObject.Find("GunTip").transform.position;
if (Physics.Raycast (localOffset, direction, hit, 300)) {
Debug.DrawLine (localOffset, hit.point, Color.cyan);
// - send damage to object we hit - \\
hit.collider.SendMessageUpwards("ApplyDamage", damage, SendMessageOptions.DontRequireReceiver);
}
}

function OnGUI () {
		GUI.Label (Rect (10, 10, 100, 20), "Ammo: " +bulletsinclip);
		GUI.Label (Rect (10, 30, 100, 20), "Bullets Left: " +clips * 30);
}

I understand that the “bullets” (raycast) shoots from the guntip but how do i make it go to the center of the screen?

2

In screen coords the centre would be screen.height/2 screen.width/2

Use Screen to World function, perhaps.