Filter.cpp

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    /* freg, Free-Roaming Elementary Game with open and interactive world
    *  Copyright (C) 2012-2014 Alexander 'mmaulwurff' Kromm
    *  mmaulwurff@gmail.com
    *
    * This file is part of FREG.
    *
    * FREG is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    *
    * FREG is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    *
    * You should have received a copy of the GNU General Public License
    * along with FREG. If not, see <http://www.gnu.org/licenses/>. */

#include "Filter.h"
#include "World.h"

const int FILTER_INV_SIZE = 2;

Filter::Filter(const int kind, const int sub) :
    Container(kind, sub, FILTER_INV_SIZE)
{}

Filter::Filter(QDataStream & str, const int kind, const int sub) :
    Container(str, kind, sub, FILTER_INV_SIZE)
{}

QString Filter::FullName() const {
    return tr("Filter (%1)").arg(SubName(Sub()));
}

QString Filter::InvFullName(const int slot_number) const {
    return ( slot_number > 0 ) ?
        Container::InvFullName(slot_number) : ( Number(0) == 0 ) ?
            tr("-example-") : Inventory::InvFullName(0);
}

bool Filter::Get(Block * const block, int) {
    if ( IsEmpty() ) {
        return Container::Get(block, 0);
    } else {
        World * const world = GetWorld();
        Container::Get(block, 1);
        if (    block->Kind() == ShowBlock(0)->Kind() &&
                block->Sub()  == ShowBlock(0)->Sub() )
        {
            int x, y, z;
            world->Focus(X(), Y(), Z(), &x, &y, &z, GetDir());
            return world->Drop(this, x, y, z, 1, 0, 1);
        } else {
            return world->Drop(this, X(), Y(), Z()-1, 1, 0, 1);
        }
    }
}