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// Destroys items being used as part of constructions
// and flags the constructions to recreate their components upon disassembly
#include "Core.h"
#include "Console.h"
#include "Export.h"
#include "PluginManager.h"
#include "modules/Maps.h"
#include "DataDefs.h"
#include "df/item.h"
#include "df/world.h"
#include "df/construction.h"
#include "df/map_block.h"
using namespace std;
using namespace DFHack;
using df::global::world;
DFHACK_PLUGIN("cleanconst");
command_result df_cleanconst(color_ostream &out, vector <string> & parameters)
    CoreSuspender suspend;
    if (!Maps::IsValid())
        out.printerr("Map is not available!\n");
        return CR_FAILURE;
    size_t numItems = world->items.all.size();
    int cleaned_total = 0;
    // proceed with the cleanup operation
    for (size_t i = 0; i < numItems; i++)
        df::item *item = world->items.all[i];
        // only process items marked as "in construction"
        if (!item->flags.bits.construction)
            continue;
        df::coord pos(item->pos.x, item->pos.y, item->pos.z);
        df::construction *cons = df::construction::find(pos);
        if (!cons)
            out.printerr("Item at %i,%i,%i marked as construction but no construction is present!\n", pos.x, pos.y, pos.z);
            continue;
        // if the construction is already labeled as "no build item", then leave it alone
        if (cons->flags.bits.no_build_item)
            continue;
        // only destroy the item if the construction claims to be made of the exact same thing
        if (item->getType() != cons->item_type ||
            item->getSubtype() != cons->item_subtype ||
            item->getMaterial() != cons->mat_type ||
            item->getMaterialIndex() != cons->mat_index)
            continue;
        item->flags.bits.garbage_collect = 1;
        cons->flags.bits.no_build_item = 1;
        cleaned_total++;
    out.print("Done. %d construction items cleaned up.\n", cleaned_total);
    return CR_OK;
DFhackCExport command_result plugin_init ( color_ostream &out, vector <PluginCommand> &commands)
    commands.push_back(PluginCommand(
        "cleanconst", "Cleans up construction materials.",
        df_cleanconst, false,
        "  This utility alters all constructions on the map so that they spawn their\n"
        "  building component when they are disassembled, allowing their actual\n"
        "  build items to be safely deleted.\n"
    return CR_OK;
DFhackCExport command_result plugin_shutdown ( color_ostream &out )
    return CR_OK;

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