// Function from file: transfer_valve.dm
public override bool update_icon(dynamic new_state = null, dynamic new_icon = null, int?new_px = null, int?new_py = null)
{
Icon J = null;
this.overlays.Cut();
this.underlays = null;
if (!Lang13.Bool(this.tank_one) && !Lang13.Bool(this.tank_two) && !Lang13.Bool(this.attached_device))
{
this.icon_state = "valve_1";
return(false);
}
this.icon_state = "valve";
if (Lang13.Bool(this.tank_one))
{
this.overlays.Add("" + this.tank_one.icon_state);
}
if (Lang13.Bool(this.tank_two))
{
J = new Icon(this.icon, "" + this.tank_two.icon_state);
J.Shift(GlobalVars.WEST, 13);
this.underlays.Add(J);
}
if (Lang13.Bool(this.attached_device))
{
this.overlays.Add("device");
}
return(false);
}