public static float ModifyCommonalityOf(ThingDef thingDefFor, ThingDef stuff, float curCommonality)
{
var extension = stuff.GetCachedExtension();
if (extension != null)
{
if (thingDefFor.IsApparel)
{
if (extension.apparelGenerationCommonalityOffset.HasValue)
{
curCommonality += extension.apparelGenerationCommonalityOffset.Value;
}
if (extension.apparelGenerationCommonalityFactor.HasValue)
{
curCommonality *= extension.apparelGenerationCommonalityFactor.Value;
}
}
if (thingDefFor.IsWeapon)
{
if (extension.weaponGenerationCommonalityOffset.HasValue)
{
curCommonality += extension.weaponGenerationCommonalityOffset.Value;
}
if (extension.weaponGenerationCommonalityFactor.HasValue)
{
curCommonality *= extension.weaponGenerationCommonalityFactor.Value;
}
}
if (thingDefFor.building != null)
{
if (extension.structureGenerationCommonalityOffset.HasValue)
{
curCommonality += extension.structureGenerationCommonalityOffset.Value;
}
if (extension.structureGenerationCommonalityFactor.HasValue)
{
curCommonality *= extension.structureGenerationCommonalityFactor.Value;
}
}
}
return(curCommonality);
}
