private double MassTL(ConfigNode cfg = null)
{
if (techLevel != -1)
{
TechLevel oldTL = new TechLevel(), newTL = new TechLevel();
if (!oldTL.Load(cfg == null ? config : cfg, techNodes, engineType, origTechLevel))
return 1.0;
if (!newTL.Load(cfg == null ? config : cfg, techNodes, engineType, techLevel))
return 1.0;
return newTL.Mass(oldTL, engineType.Contains("S"));
}
return 1.0;
}