sphere.cpp

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// © Copyright 2010 - 2014 BlackTopp Studios Inc.
/* This file is part of The Mezzanine Engine.

    The Mezzanine Engine is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
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    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with The Mezzanine Engine.  If not, see <http://www.gnu.org/licenses/>.
*/
/* The original authors have included a copy of the license specified above in the
   'Docs' folder. See 'gpl.txt'
*/
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*/
#ifndef _sphere_cpp
#define _sphere_cpp

/// @file
/// @brief This file contains the implementation for the generic Sphere class for math and spacial query.

#include "sphere.h"
#include "mathtool.h"
#include "axisalignedbox.h"
#include "plane.h"
#include "ray.h"
#include "exception.h"
#include "serialization.h"

#include <Ogre.h>

namespace Mezzanine
{
    Sphere::Sphere() :
        Radius(0)
        {  }

    Sphere::Sphere(const Sphere& Other) :
        Center(Other.Center),
        Radius(Other.Radius)
        {  }

    Sphere::Sphere(const Real SphereRadius) :
        Radius(SphereRadius)
        {  }

    Sphere::Sphere(const Vector3& SphereCenter, const Real SphereRadius) :
        Center(SphereCenter),
        Radius(SphereRadius)
        {  }

    Sphere::Sphere(const Ogre::Sphere& InternalSphere)
        { this->ExtractOgreSphere(InternalSphere); }

    Sphere::~Sphere()
        {  }

    ///////////////////////////////////////////////////////////////////////////////
    // Utility

    Boolean Sphere::IsInside(const Vector3& ToCheck) const
        { return MathTools::IsInside(*this,ToCheck); }

    Boolean Sphere::IsOverlapping(const Sphere& ToCheck) const
        { return MathTools::Overlap(*this,ToCheck); }

    Boolean Sphere::IsOverlapping(const AxisAlignedBox& ToCheck) const
        { return MathTools::Overlap(ToCheck,*this); }

    Boolean Sphere::IsOverlapping(const Plane& ToCheck) const
        { return MathTools::Overlap(ToCheck,*this); }

    Sphere::RayTestResult Sphere::Intersects(const Ray& ToCheck) const
        { return MathTools::Intersects(*this,ToCheck); }

    ///////////////////////////////////////////////////////////////////////////////
    // Conversion Methods

    void Sphere::ExtractOgreSphere(const Ogre::Sphere& InternalSphere)
        { this->Center = InternalSphere.getCenter();  this->Radius = InternalSphere.getRadius(); }

    Ogre::Sphere Sphere::GetOgreSphere() const
        { return Ogre::Sphere(this->Center.GetOgreVector3(),this->Radius); }

    ///////////////////////////////////////////////////////////////////////////////
    // Serialization

    void Sphere::ProtoSerialize(XML::Node& ParentNode) const
    {
        XML::Node SelfRoot = ParentNode.AppendChild( Sphere::GetSerializableName() );

        if( SelfRoot.AppendAttribute("Version").SetValue("1") &&
            SelfRoot.AppendAttribute("Radius").SetValue( this->Radius ) )
        {
            XML::Node CenterNode = SelfRoot.AppendChild("Center");
            this->Center.ProtoSerialize( CenterNode );

            return;
        }else{
            SerializeError("Create XML Attribute Values",Sphere::GetSerializableName(),true);
        }
    }

    void Sphere::ProtoDeSerialize(const XML::Node& SelfRoot)
    {
        XML::Attribute CurrAttrib;

        if( String(SelfRoot.Name()) == Sphere::GetSerializableName() ) {
            if(SelfRoot.GetAttribute("Version").AsInt() == 1) {
                CurrAttrib = SelfRoot.GetAttribute("Radius");
                if( !CurrAttrib.Empty() )
                    this->Radius = CurrAttrib.AsReal();

                // Get the properties that need their own nodes
                XML::Node CenterNode = SelfRoot.GetChild("Center").GetFirstChild();
                if( !CenterNode.Empty() ) {
                    Vector3 Cen(CenterNode);
                    this->Center = Cen;
                }
            }else{
                MEZZ_EXCEPTION(Exception::INVALID_VERSION_EXCEPTION,"Incompatible XML Version for " + Sphere::GetSerializableName() + ": Not Version 1.");
            }
        }else{
            MEZZ_EXCEPTION(Exception::II_IDENTITY_NOT_FOUND_EXCEPTION,Sphere::GetSerializableName() + " was not found in the provided XML node, which was expected.");
        }
    }

    String Sphere::GetSerializableName()
    {
        return "Sphere";
    }

    ///////////////////////////////////////////////////////////////////////////////
    // Operators

    void Sphere::operator=(const Sphere& Other)
        { this->Center = Other.Center;  this->Radius = Other.Radius; }

    void Sphere::operator=(const Ogre::Sphere& InternalSphere)
        { this->ExtractOgreSphere(InternalSphere); }

    Boolean Sphere::operator>(const Sphere& Other) const
        { return ( this->Radius > Other.Radius ); }

    Boolean Sphere::operator<(const Sphere& Other) const
        { return ( this->Radius < Other.Radius ); }

    Boolean Sphere::operator>=(const Sphere& Other) const
        { return ( this->Radius >= Other.Radius ); }

    Boolean Sphere::operator<=(const Sphere& Other) const
        { return ( this->Radius <= Other.Radius ); }

    Boolean Sphere::operator==(const Sphere& Other) const
        { return ( this->Center == Other.Center && this->Radius == Other.Radius ); }

    Boolean Sphere::operator!=(const Sphere& Other) const
        { return ( this->Center != Other.Center || this->Radius != Other.Radius ); }
}//Mezzanine

#endif