My games(unity3d engine)

var initialSpeed = 15.0;   
   var reloadTime = 0.5;   
   var ammoCount = 4;   
   private var lastShot = -10.0;   
   var launchPosition : GameObject;   
   //var animGL : GameObject;   
   var soundFire : AudioClip;   

   function Awake (){   
   Gui();   
   }   

   function Update () {   
    
   if (Input.GetKeyUp("q")){   
   Throw();   
   }   
   }   

   function Throw () {   
   // Did the time exceed the reload time?   
   if (Time.time > reloadTime + lastShot && ammoCount > 0) {   
   // create a new projectile, use the same position and rotation as the Launcher.   
   var instantiatedProjectile : Rigidbody = Instantiate (projectile, launchPosition.transform.position, launchPosition.transform.rotation);   
   //  animGL.animation.Play("FireGL");   
   //  audio.clip = soundFire;   
   //  audio.Play();   
   // Give it an initial forward velocity. The direction is along the z-axis of the missile launcher's transform.   
   instantiatedProjectile.velocity = transform.TransformDirection(Vector3 (0, 0, initialSpeed));   

   // Ignore collisions between the missile and the character controller   
   Physics.IgnoreCollision(instantiatedProjectile.collider, transform.root.collider);   
    
   lastShot = Time.time;   
   ammoCount--;   
   Gui();   
   }   
   }   

   function Gui () {   
   grenadeGUI.text ="Гранаты:  " + ammoCount.ToString();