/****** Instantiates the paperplane and updates UI *****/
private void Fire(float bulletSpeed = default(float))
{
if (bulletSpeed < MinBulletSpeed)
{
bulletSpeed = MinBulletSpeed;
}
if (this.papers > 0 && timeBeforeThrow <= 0)
{
GameObject bullet = Instantiate(bulletPrefab, bulletSpawn.position, bulletSpawn.rotation);
bullet.GetComponent <Bullet> ().speed = bulletSpeed;
timeBeforeThrow = timeBetweenThrows;
this.papers--;
iuic.SetPapersAmmount(papers);
}
}