compoundcollisionshape.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 _physicscompoundcollisionshape_cpp
#define _physicscompoundcollisionshape_cpp

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

#include <btBulletDynamicsCommon.h>

namespace Mezzanine
{
    namespace Physics
    {
        /////////////////////////////////////////
        // CompoundCollisionShape Functions

        CompoundCollisionShape::CompoundCollisionShape(const String& Name)
        {
            this->Name = Name;
            ShapeBase = new btCompoundShape(false);
        }

        CompoundCollisionShape::CompoundCollisionShape(const String& Name, btCompoundShape* BulletShape)
        {
            this->Name = Name;
            ShapeBase = BulletShape;

            Whole NumChildren = GetBulletCompoundShape()->getNumChildShapes();
            for( Whole X = 0 ; X < NumChildren ; X++ )
            {
                btCollisionShape* CurrChild = GetBulletCompoundShape()->getChildShape(X);
                CollisionShape* CreatedShape = CreateShape(InternalShapeTypeToShapeType(CurrChild->getShapeType()), this->Name+"Child"+StringTools::ConvertToString(X), CurrChild);
                ChildShapes.push_back(CreatedShape);
                CollisionShapeManager::GetSingletonPtr()->StoreShape(CreatedShape);
            }
        }

        CompoundCollisionShape::~CompoundCollisionShape()
        {
            /*for( Whole X = 0 ; X < ChildShapes.size() ; X++ )
            {
                //GetBulletCompoundShape()->removeChildShapeByIndex(X);
                delete ChildShapes[X];
            }
            ChildShapes.clear();*/
            delete GetBulletCompoundShape();
        }

        void CompoundCollisionShape::AddChildShape(CollisionShape* Child, const Vector3& ChildLocation, const Quaternion& ChildRotation)
        {
            btTransform ChildTrans(ChildRotation.GetBulletQuaternion(),ChildLocation.GetBulletVector3());
            GetBulletCompoundShape()->addChildShape(ChildTrans,Child->_GetInternalShape());
            ChildShapes.push_back(Child);
            CollisionShapeManager::GetSingletonPtr()->StoreShape(Child);
        }

        void CompoundCollisionShape::AddChildShape(CollisionShape* Child, const Vector3& ChildLocation)
        {
            btTransform ChildTrans;
            ChildTrans.setIdentity();
            ChildTrans.setOrigin(ChildLocation.GetBulletVector3());
            GetBulletCompoundShape()->addChildShape(ChildTrans,Child->_GetInternalShape());
            ChildShapes.push_back(Child);
            CollisionShapeManager::GetSingletonPtr()->StoreShape(Child);
        }

        void CompoundCollisionShape::AddChildShape(CollisionShape* Child, const Transform& ChildLocation)
        {
            GetBulletCompoundShape()->addChildShape(ChildLocation.GetBulletTransform(),Child->_GetInternalShape());
            ChildShapes.push_back(Child);
            CollisionShapeManager::GetSingletonPtr()->StoreShape(Child);
        }

        Whole CompoundCollisionShape::GetNumChildren() const
        {
            return ChildShapes.size();
        }

        CollisionShape* CompoundCollisionShape::GetChild(Whole Index) const
        {
            return ChildShapes.at(Index);
        }

        void CompoundCollisionShape::RemoveChildShape(CollisionShape* Child)
        {
            for( std::vector<CollisionShape*>::iterator CSit = ChildShapes.begin() ; CSit != ChildShapes.end() ; CSit++ )
            {
                if(Child == (*CSit))
                {
                    ChildShapes.erase(CSit);
                    GetBulletCompoundShape()->removeChildShape(Child->_GetInternalShape());
                    return;
                }
            }
        }

        void CompoundCollisionShape::RemoveChildShape(const Whole& ChildIndex)
        {
            std::vector<CollisionShape*>::iterator CSit = ChildShapes.begin() + ChildIndex;
            ChildShapes.erase(CSit);
            GetBulletCompoundShape()->removeChildShapeByIndex(ChildIndex);
        }

        CollisionShape::ShapeType CompoundCollisionShape::GetType() const
        {
            return CollisionShape::ST_Compound;
        }

        btCompoundShape* CompoundCollisionShape::GetBulletCompoundShape() const
            { return static_cast<btCompoundShape*>(ShapeBase); }

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

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

            this->CollisionShape::ProtoSerialize(CollisionNode);

            XML::Node ChildShapesNode = CollisionNode.AppendChild("Shapes");
            if (!ChildShapesNode) { SerializeError("create ChildShapesNode",this->CompoundCollisionShape::GetSerializableName());}
            for( Whole X = 0 ; X < ChildShapes.size() ; X++ )
            {
                //if() //the shape is in the manager
                //{
                    XML::Node OneChildShapeNode = ChildShapesNode.AppendChild("ChildShapeFromManager");
                    if(!OneChildShapeNode) { SerializeError("create ChildShapeFromManager Node",this->CompoundCollisionShape::GetSerializableName());}
                    XML::Attribute OneName = OneChildShapeNode.AppendAttribute("Name");
                    if(!OneName) { SerializeError("create Name Attribute on OneChildShapeNode",this->CompoundCollisionShape::GetSerializableName());}
                    OneName.SetValue(ChildShapes[X]->GetName());
                //}else{
                //    ChildShapes[X].ProtoSerialize(ChildShapesNode);
                //}
            }

        }

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

                    ChildShapes.clear(); // this will leak if any childshapes are not in the CollisionManager.
                    XML::Node ChildShapesNode = OneNode.GetChild("Shapes");
                    if(!ChildShapesNode) { DeSerializeError("Find Shapes Node",this->CompoundCollisionShape::GetSerializableName());}

                    XML::Node ChildNode = ChildShapesNode.GetFirstChild();
                    while(ChildNode)
                    {
                        if(String(ChildNode.Name())=="ChildShapeFromManager")
                        {
                            XML::Attribute OneName = ChildNode.GetAttribute("Name");
                            if(!OneName) { DeSerializeError("find Name Attribute on ChildShapeFromManager Node",this->CompoundCollisionShape::GetSerializableName()); }
                            CollisionShape* CurrentShape = CollisionShapeManager::GetSingletonPtr()->GetShape(OneName.AsString());
                            if(!CurrentShape) { DeSerializeError("find correct shape in CollisionShape Manager",this->CompoundCollisionShape::GetSerializableName()); }
                            ChildShapes.push_back(CurrentShape);
                        }else{
                            CollisionShape* CurrentShape = CreateShape(ChildNode);
                            ChildShapes.push_back(CurrentShape);
                        }
                        ChildNode=ChildNode.GetNextSibling();
                    }

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

        String CompoundCollisionShape::GetSerializableName()
            {   return String("CompoundCollisionShape"); }
    }//Physics
}//Mezzanine

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

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

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

#endif