Function can_melt

plugins/uicommon.h:228–277

Copied from Kelly Martin's code

// Copied from Kelly Martin's code
static inline bool can_melt(df::item* item)
{

    df::item_flags bad_flags;
    bad_flags.whole = 0;

#define F(x) bad_flags.bits.x = true;
    F(dump); F(forbid); F(garbage_collect); F(in_job);
    F(hostile); F(on_fire); F(rotten); F(trader);
    F(in_building); F(construction); F(artifact); F(melt);
#undef F

    if (item->flags.whole & bad_flags.whole)
        return false;

    df::item_type t = item->getType();

    if (t == df::enums::item_type::BOX || t == df::enums::item_type::BAR)
        return false;

    if (!is_metal_item(item)) return false;

    for (auto g = item->general_refs.begin(); g != item->general_refs.end(); g++)
    {
        switch ((*g)->getType())
        {
        case general_ref_type::CONTAINS_ITEM:
        case general_ref_type::UNIT_HOLDER:
        case general_ref_type::CONTAINS_UNIT:
            return false;
        case general_ref_type::CONTAINED_IN_ITEM:
            {
                df::item* c = (*g)->getItem();
                for (auto gg = c->general_refs.begin(); gg != c->general_refs.end(); gg++)
                {
                    if ((*gg)->getType() == general_ref_type::UNIT_HOLDER)
                        return false;
                }
            }
            break;
        default:
            break;
        }
    }

    if (item->getQuality() >= item_quality::Masterful)
        return false;

    return true;
}


/*