public void updateWeaponState(MachineGun weapon)
 {
     if (weapon.getState() == MachineGun.WeaponState.OUT_OF_AMMO)
     {
         GetComponent <TextMesh>().text = "OUT OF AMMO";
     }
     else if (weapon.getState() == MachineGun.WeaponState.REALOAD)
     {
         GetComponent <TextMesh>().text = "RELOAD";
     }
     else
     {
         GetComponent <TextMesh>().text = weapon.getAmmo() + "/" + weapon.getMagazine();
     }
 }