[SOLVED] HUD ammo counter showing up only when a bullet is fired

Hello.

I'm having trouble with the ammo counter I made by following a tutorial on ETeeskiTutorials YouTube channel. The ammo counter only appears when I fire a bullet, then it just disappears again.

So I modified the FPS Tutorial's MachineGun script to show it's ammo. Here is the new part of the script:

 function OnGUI () {
 if(this.gameObject.active)
 {
 for (var i : int = 1; i <= bulletsLeft; i++)
     {
     GUI.DrawTexture(Rect(ammoStartX + ((i - 1) * (ammoSize.x + ammoSpacig)), ammoY, ammoSize.x, ammoSize.y), bulletHudTexture);
     }
 GUI.Label(ammoCountRect, bulletsLeft.ToString(), clips.ToString());
 GUI.DrawTexture(ammoDecorationHudRect, ammoDecorationTexture);
 }

}