convexhullcollisionshape.cpp

// © Copyright 2010 - 2016 BlackTopp Studios Inc.
/* This file is part of The Mezzanine Engine.

    The Mezzanine Engine is free software: you can redistribute it and/or modify
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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 _physicsconvexhullcollisionshape_cpp
#define _physicsconvexhullcollisionshape_cpp

#include "Physics/convexhullcollisionshape.h"
#include "collisionshapemanager.h"
#include "stringtool.h"

#include "btBulletDynamicsCommon.h"

namespace Mezzanine
{
    namespace Physics
    {
        /////////////////////////////////////////
        // ConvexHullCollisionShape Functions

        ConvexHullCollisionShape::ConvexHullCollisionShape(const String& Name, const std::vector<Vector3>& Points)
        {
            btScalar* BulletPoints = new btScalar[Points.size() * 3];
            for( Whole X = 0 ; X < Points.size() ; ++X )
            {
                BulletPoints[X*3]     = Points[X][0];
                BulletPoints[X*3+1]   = Points[X][1];
                BulletPoints[X*3+2]   = Points[X][2];
            }

            this->Name = Name;
            SetPointers(new btConvexHullShape(BulletPoints,Points.size(),3*sizeof(btScalar)));
            this->GetBulletHullShape()->setImplicitShapeDimensions(Vector3(0,0,0).GetBulletVector3());
            delete[] BulletPoints;
        }

        ConvexHullCollisionShape::ConvexHullCollisionShape(const String& Name, btConvexHullShape* BulletShape)
        {
            this->Name = Name;
            SetPointers(BulletShape);
            this->GetBulletHullShape()->setImplicitShapeDimensions(Vector3(0,0,0).GetBulletVector3());
        }

        ConvexHullCollisionShape::ConvexHullCollisionShape(XML::Node OneNode)
        {
            if(OneNode.GetAttribute("Version").AsInt() == 1)
            {
                XML::Attribute OneName = OneNode.GetChild("PrimitiveCollisionShape").GetChild("CollisionShape").GetAttribute("Name");               // get name
                if(!OneName) { MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Could not find Name Attribute on CollsionShape Node during preparation for deserialization"); }

                this->Name = OneName.AsString();

                SetPointers(new btConvexHullShape());

                this->ProtoDeSerialize(OneNode);
            }else{
                DeSerializeError("find usable serialization version", ConvexHullCollisionShape::GetSerializableName());
            }
        }

        ConvexHullCollisionShape::~ConvexHullCollisionShape()
        {
            delete GetBulletHullShape();
        }

        void ConvexHullCollisionShape::AddPoint(const Vector3& Point)
        {
            GetBulletHullShape()->addPoint(Point.GetBulletVector3());
        }

        Vector3 ConvexHullCollisionShape::GetUnscaledPoint(const Whole& Index) const
        {

            return Vector3 ( *(GetBulletHullShape()->getUnscaledPoints()+Index) );
        }

        Vector3 ConvexHullCollisionShape::GetPoint(const Whole& Index) const
        {
            return Vector3(GetBulletHullShape()->getScaledPoint(Index));
        }

        Whole ConvexHullCollisionShape::GetNumPoints() const
        {
            return GetBulletHullShape()->getNumPoints();
        }

        Boole ConvexHullCollisionShape::IsInside(const Vector3& Location, const Real& Tolerance) const
        {
            return GetBulletHullShape()->isInside(Location.GetBulletVector3(),Tolerance);
        }

        CollisionShape::ShapeType ConvexHullCollisionShape::GetType() const
        {
            return CollisionShape::ST_ConvexHull;
        }

        btConvexHullShape* ConvexHullCollisionShape::GetBulletHullShape() const
            { return static_cast<btConvexHullShape*>(ShapeBase); }

        void ConvexHullCollisionShape::ProtoSerialize(XML::Node& CurrentRoot) const
        {
            XML::Node CollisionNode = CurrentRoot.AppendChild(this->ConvexHullCollisionShape::GetSerializableName());
            if (!CollisionNode) { SerializeError("create CollisionNode",this->ConvexHullCollisionShape::GetSerializableName());}

            XML::Attribute Version = CollisionNode.AppendAttribute("Version");
            if (Version)
                { Version.SetValue(1); }
            else
                { SerializeError("Create Version Attribute", GetSerializableName()); }

            XML::Node PointsNode = CollisionNode.AppendChild("UnscaledPoints");
            if (!PointsNode) { SerializeError("create UnscaledPoints",this->ConvexHullCollisionShape::GetSerializableName());}

            for(Whole c=0; c<this->GetNumPoints(); ++c)
            {
                this->GetUnscaledPoint(c).ProtoSerialize(PointsNode);
            }

            this->PrimitiveCollisionShape::ProtoSerialize(CollisionNode);
        }

        void ConvexHullCollisionShape::ProtoDeSerialize(const XML::Node& OneNode)
        {
            if ( Mezzanine::String(OneNode.Name())==this->ConvexHullCollisionShape::GetSerializableName() )
            {
                if(OneNode.GetAttribute("Version").AsInt() == 1)
                {
                    XML::Node CollisionNode = OneNode.GetChild(this->PrimitiveCollisionShape::GetSerializableName());
                    if(!CollisionNode)
                        { DeSerializeError("locate PrimitiveCollisionShape node",GetSerializableName()); }
                    this->PrimitiveCollisionShape::ProtoDeSerialize(CollisionNode);

                    XML::Node UnscaledPoints = OneNode.GetChild("UnscaledPoints");
                    if(!UnscaledPoints)
                        { DeSerializeError("locate UnscaledPoints node",GetSerializableName()); }

                    XML::Node OnePoint = UnscaledPoints.GetFirstChild();
                    while (OnePoint)
                    {
                        this->AddPoint(Vector3(OnePoint));
                        OnePoint = OnePoint.GetNextSibling();
                    }

                }else{
                    DeSerializeError("find usable serialization version",GetSerializableName());
                }
            }else{
                DeSerializeError(String("find correct class to deserialize, found a ")+OneNode.Name(),GetSerializableName());
            }
        }

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

    }//Physics
}//Mezzanine

    std::ostream& operator << (std::ostream& stream, const Mezzanine::Physics::ConvexHullCollisionShape& ShapeToSerialize)
        { Mezzanine::Serialize(stream, ShapeToSerialize); return stream; }

    std::istream& operator >> (std::istream& stream, Mezzanine::Physics::ConvexHullCollisionShape& x)
        { return Mezzanine::DeSerialize(stream, x); }

    void operator >> (const Mezzanine::XML::Node& OneNode, Mezzanine::Physics::ConvexHullCollisionShape& x)
        { x.ProtoDeSerialize(OneNode); }

#endif