// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2016 Erik Ogenvik
//
// This program 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 2 of the License, or
// (at your option) any later version.
// 
// This program 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 this program; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

#include "DensityProperty.h"

#include "rules/LocatedEntity.h"

#include "common/debug.h"

#include "common/operations/Eat.h"
#include "common/operations/Nourish.h"

#include <Atlas/Objects/Anonymous.h>
#include <Atlas/Objects/Operation.h>

#include <iostream>

using Atlas::Objects::Entity::Anonymous;
using Atlas::Objects::Operation::Nourish;
using Atlas::Objects::Operation::Set;

static const bool debug_flag = false;


void DensityProperty::apply(LocatedEntity *entity)
{
    updateMass(entity);
}

void DensityProperty::updateMass(LocatedEntity *entity) const
{

    const auto& bbox = entity->m_location.bBox();
    if (bbox.isValid()) {
        WFMath::Vector<3> volumeVector = bbox.highCorner() - bbox.lowCorner();
        float volume = volumeVector.x() * volumeVector.y() * volumeVector.z();

        double mass = volume * m_data;

        auto massProp = entity->requirePropertyClass<Property<double>>("mass");

        if (massProp->data() != mass) {
            massProp->set(mass);
            massProp->apply(entity);
            massProp->removeFlags(per_clean);
            massProp->addFlags(flag_unsent);
            entity->propertyApplied("mass", *massProp);
        }

    }
}

DensityProperty * DensityProperty::copy() const
{
    return new DensityProperty(*this);
}