// TODO ?
// setup custom constructed class with HP, ammo?, and wich class is currently being used. http://ilkinulas.github.io/development/unity/2016/05/30/monobehaviour-constructor.html
public void SetCrosshair(GameObject crosshair_tank)
{
player_tank_crosshair = crosshair_tank;
PlayerGun player_tank_gun_script = player_tank_gun.GetComponent <PlayerGun>();
player_tank_gun_script.SetCrosshairBarrel(player_tank_crosshair);
}
