capsulecollisionshape.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.

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*/
/* The original authors have included a copy of the license specified above in the
   'Docs' folder. See 'gpl.txt'
*/
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*/
#ifndef _physicscapsulecollisionshape_cpp
#define _physicscapsulecollisionshape_cpp

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

#include "btBulletDynamicsCommon.h"

namespace Mezzanine
{
    namespace Physics
    {
        /////////////////////////////////////////
        // CapsuleCollisionShape Functions

        void CapsuleCollisionShape::Construct(const String& Name, const Real& Radius, const Real& Height, StandardAxis UpAxis)
        {
            this->Name = Name;
            btCapsuleShape* CapsuleShape = 0;
            if(Axis_Y == UpAxis) CapsuleShape = new btCapsuleShape(Radius,Height);
            else if(Axis_X == UpAxis) CapsuleShape = new btCapsuleShapeX(Radius,Height);
            else if(Axis_Z == UpAxis) CapsuleShape = new btCapsuleShapeZ(Radius,Height);
            else { MEZZ_EXCEPTION(ExceptionBase::PARAMETERS_EXCEPTION,"Non-supported up Axis passed into CapsuleCollisionShape constructor."); }
            SetPointers(CapsuleShape);
        }

        CapsuleCollisionShape::CapsuleCollisionShape(const String& Name, const Real& Radius, const Real& Height, const Vector3& UpAxis)
            { this->Construct(Name,Radius,Height,UpAxis.IsStandardUnitAxis()); }

        CapsuleCollisionShape::CapsuleCollisionShape(const String& Name, const Real& Radius, const Real& Height, StandardAxis UpAxis)
            { this->Construct(Name,Radius,Height,UpAxis); }

        CapsuleCollisionShape::CapsuleCollisionShape(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"); }
                String Name_(OneName.AsString());

                XML::Attribute Axis = OneNode.GetAttribute("Axis");
                if (!Axis) { DeSerializeError("find Axis Attribute",CapsuleCollisionShape::GetSerializableName()); }
                /*
                XML::Attribute Radius = OneNode.GetAttribute("Radius");
                if (!Radius) { DeSerializeError("find Radius Attribute",CapsuleCollisionShape::GetSerializableName()); }
                XML::Attribute Height = OneNode.GetAttribute("Height");
                if (!Height) { DeSerializeError("find Height Attribute",CapsuleCollisionShape::GetSerializableName()); }
                //SetPointers(new CapsuleCollisionShape(Name_,Radius.AsReal(),Height.AsReal(), (StandardAxis)Axis.AsInteger());  // make and deserialize the shape
                this->Construct(Name_,Radius.AsReal(),Height.AsReal(),(StandardAxis)Axis.AsInteger());
                */
                this->Construct(Name_,0,0,(StandardAxis)Axis.AsInteger());

                this->ProtoDeSerialize(OneNode);

            }else{
                DeSerializeError("find usable serialization version",CapsuleCollisionShape::GetSerializableName());
            }
        }

        CapsuleCollisionShape::CapsuleCollisionShape(const String& Name, btCapsuleShape* BulletShape)
        {
            this->Name = Name;
            SetPointers(BulletShape);
        }

        CapsuleCollisionShape::~CapsuleCollisionShape()
        {
            delete GetBulletCapsuleShape();
        }

        Real CapsuleCollisionShape::GetRadius() const
            { return GetBulletCapsuleShape()->getRadius(); }
        Real CapsuleCollisionShape::GetHeight() const
            { return (GetBulletCapsuleShape()->getHalfHeight() * 2.0); }

        Real CapsuleCollisionShape::GetCleanRadius() const
            { return (this->GetRadius()+GetBulletCapsuleShape()->getMargin()) / GetScaling()[(StandardAxis)((this->GetUpStandardAxis()+2)%3)] - GetBulletCapsuleShape()->getMargin(); }
            //{ return GetRadiusWithMargin() / GetScaling()[(StandardAxis)((this->GetUpStandardAxis()+2)%3)] - GetBulletCapsuleShape()->getMargin(); }
        Real CapsuleCollisionShape::GetCleanHeight() const
            //{ return 2.0* ((GetBulletCapsuleShape()->getHalfHeight()+GetBulletCapsuleShape()->getMargin()) / GetScaling()[this->GetUpStandardAxis()] - GetBulletCapsuleShape()->getMargin()); }
            { return 2.0* ((GetBulletCapsuleShape()->getHalfHeight()) / GetScaling()[this->GetUpStandardAxis()]); }
        /* Real CapsuleCollisionShape::GetRadiusWithMargin() const
            { return this->GetRadius()+GetBulletCapsuleShape()->getMargin(); }*/

        Vector3 CapsuleCollisionShape::GetUpAxis() const
            { return Vector3::UnitOnAxis( (StandardAxis)GetBulletCapsuleShape()->getUpAxis() ); }

        StandardAxis CapsuleCollisionShape::GetUpStandardAxis() const
            { return (StandardAxis)GetBulletCapsuleShape()->getUpAxis(); }

        CollisionShape::ShapeType CapsuleCollisionShape::GetType() const
        {
            return CollisionShape::ST_Capsule;
        }

        btCapsuleShape* CapsuleCollisionShape::GetBulletCapsuleShape() const
            { return static_cast<btCapsuleShape*>(ShapeBase); }

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

            XML::Attribute Version = CollisionNode.AppendAttribute("Version");
            if (Version)
                { Version.SetValue(1); }
            else
                { SerializeError("Create Version Attribute", GetSerializableName()); }
/*
            XML::Attribute RadiusAttr = CollisionNode.AppendAttribute("Radius");
            if (RadiusAttr)
                { RadiusAttr.SetValue(this->GetCleanRadius()); }
            else
                { SerializeError("Create RadiusAttr Attribute", GetSerializableName()); }

            XML::Attribute HeightAttr = CollisionNode.AppendAttribute("Height");
            if (HeightAttr)
                { HeightAttr.SetValue(this->GetCleanHeight()); }
            else
                { SerializeError("Create HeightAttr Attribute", GetSerializableName()); }
*/
            XML::Attribute AxisAttr = CollisionNode.AppendAttribute("Axis");
            if (AxisAttr)
                { AxisAttr.SetValue(this->GetUpStandardAxis()); }
            else
                { SerializeError("Create AxisAttr Attribute", GetSerializableName()); }

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

        void CapsuleCollisionShape::ProtoDeSerialize(const XML::Node& OneNode)
        {
            if ( Mezzanine::String(OneNode.Name())==this->CapsuleCollisionShape::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);
                }else{
                    DeSerializeError("find usable serialization version",GetSerializableName());
                }
            }else{
                DeSerializeError(String("find correct class to deserialize, found a ")+OneNode.Name(),GetSerializableName());
            }
        }

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

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

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

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

#endif