Function df_autodump_destroy_item

plugins/autodump.cpp:208–265

static int last_frame = 0;

command_result df_autodump_destroy_item(color_ostream &out, vector<string> &parameters)
{
    if (!parameters.empty())
        return CR_WRONG_USAGE;

    df::item *item = Gui::getSelectedItem(out);
    if (!item)
        return CR_FAILURE;

    // Allow undoing the destroy.
    if (world->frame_counter != last_frame)
    {
        last_frame = world->frame_counter;
        pending_destroy.clear();
    }

    if (pending_destroy.count(item->id))
    {
        df::item_flags old_flags = pending_destroy[item->id];
        pending_destroy.erase(item->id);

        item->flags.bits.garbage_collect = false;
        item->flags.bits.hidden = old_flags.bits.hidden;
        item->flags.bits.dump = old_flags.bits.dump;
        item->flags.bits.forbid = old_flags.bits.forbid;
        return CR_OK;
    }

    // Check the item is good to destroy.
    if (item->flags.bits.garbage_collect) {
        out.printerr("Item is already marked for destroy.\n");
        return CR_FAILURE;
    }

    if (item->flags.bits.construction ||
        item->flags.bits.in_building ||
        item->flags.bits.artifact)
    {
        out.printerr("Choosing not to destroy buildings, constructions and artifacts.\n");
        return CR_FAILURE;
    }

    for (auto ref : item->general_refs) {
        if (ref->getType() == general_ref_type::UNIT_HOLDER) {
            out.printerr("Choosing not to destroy items in unit inventory.\n");
            return CR_FAILURE;
        }
    }

    // Set the flags.
    pending_destroy[item->id] = item->flags;

    item->flags.bits.garbage_collect = true;
    item->flags.bits.hidden = true;
    item->flags.bits.dump = true;
    item->flags.bits.forbid = true;
    return CR_OK;
}