cylindercollisionshape.h

// © 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
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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 _physicscylindercollisionshape_h
#define _physicscylindercollisionshape_h

#include "Physics/primitivecollisionshape.h"

class btCylinderShape;

namespace Mezzanine
{
    namespace Physics
    {
        ///////////////////////////////////////////////////////////////////////////////
        /// @class CylinderCollisionShape
        /// @headerfile collisionshape.h
        /// @brief A cylinder physics shape.
        /// @details A primitive cylinder shape.  Like Capsules and Cones Cylinders can be
        /// aligned to any of the 3 linear axes(X, Y, or Z).
        ///////////////////////////////////////
        class MEZZ_LIB CylinderCollisionShape : public PrimitiveCollisionShape
        {
        protected:
            /// @internal
            /// @brief Does the initialization for a Cylinder
            /// @param Name The name of the shape to initialize
            /// @param HalfExtents This of the shape to initialize
            /// @param UpAxis which direction gets the flat 'top' of the cylinder perpendicular ot it.
            void Construct(const String& Name, const Vector3& HalfExtents, StandardAxis UpAxis);

            /// @internal
            /// @brief Does the initialization for a Cylinder
            /// @param Name The name of the shape to initialize
            /// @param BulletShape A pointer to a valid fully constructed internal Collision shape.
            void Construct(const String& Name, btCylinderShape* BulletShape);

        public:
            /// @brief Verbose Vector Constructor.
            /// @param Name The name of this Shape.
            /// @param Radius The radius of the Cylinder.
            /// @param Height The height of the Cylinder, Height is indicated in the direction of the upAxis.
            /// @param UpAxis Which axis the cylinder is to be oriented along. Typical usage is for
            /// a capsule to be oriented on the Y axis(0,1,0), which would make it stand upright.
            CylinderCollisionShape(const String& Name, const Real& Radius, const Real& Height, const Vector3& UpAxis);
            /// @brief Verbose Constructor.
            /// @param Name The name of this Shape.
            /// @param Radius The radius of the Cylinder.
            /// @param Height The height of the Cylinder, Height is indicated in the direction of the upAxis.
            /// @param UpAxis Which StandardAxis the cylinder is to be oriented along.
            CylinderCollisionShape(const String& Name, const Real& Radius, const Real& Height, StandardAxis UpAxis);
            /// @brief Terse Vector Constructor.
            /// @param Name The name of this Shape.
            /// @param HalfExtents A Vector3 with the Height of the cylinder on the axis corresponding to the UpAxis and the Radius store in the other two axis.
            /// @param UpAxis Which axis the cylinder is to be oriented along. Typical usage is for
            /// a capsule to be oriented on the Y axis(0,1,0), which would make it stand upright.
            CylinderCollisionShape(const String& Name, const Vector3& HalfExtents, const Vector3& UpAxis);
            /// @brief Terse Constructor.
            /// @param Name The name of this Shape.
            /// @param HalfExtents A Vector3 with the Height of the cylinder on the axis corresponding to the UpAxis and the Radius store in the other two axis.
            /// @param UpAxis Which StandardAxis the cylinder is to be oriented along.
            CylinderCollisionShape(const String& Name, const Vector3& HalfExtents, StandardAxis UpAxis);
            /// @internal
            /// @brief Internal Constructor.
            /// @param Name The name of this Shape.
            /// @param BulletShape The internal shape this shape is based on.
            CylinderCollisionShape(const String& Name, btCylinderShape* BulletShape);
            /// @copydoc BoxCollisionShape::BoxCollisionShape(XML::Node OneNode)
            CylinderCollisionShape(XML::Node OneNode);
            /// @brief Class Destructor.
            virtual ~CylinderCollisionShape();

            /// @brief A (very) simple way to create a Vector3 containing the Half Extents of a Cylinder with given dimenions/
            /// @param Radius The radius of the Cylinder.
            /// @param Height The height of the Cylinder, Height is indicated in the direction of the upAxis.
            /// @param UpAxis Which StandardAxis the cylinder is to be oriented along.
            static Vector3 CreateHalfExtents(const Real& Radius, const Real& Height, StandardAxis UpAxis);
            /// @brief Gets the half extents used to construct this cylinder.
            /// @return Returns a vector3 containing the half extents of this cylinder.
            virtual Vector3 GetHalfExtents() const;
            /// @brief Gets the half extents with padding.
            /// @return Returns a vector3 containing the half extents with the margin added to each axis.
            virtual Vector3 GetHalfExtentsWithMargin() const;
            /// @brief Gets the radius of the cylinder.
            /// @return Returns a real representing the radius at the base of the cylinder.
            virtual Real GetRadius() const;
            /// @brief Gets which axis this cylinder is oriented along.
            /// @return Returns a Vector3 representing which local axis is oriented along the world up axis.
            virtual Vector3 GetUpAxis() const;
            /// @copydoc CollisionShape::GetType()
            virtual CollisionShape::ShapeType GetType() const;
            /// @copydoc CollisionShape::GetBulletShape
            virtual btCylinderShape* GetBulletCylinderShape() const;

            /// @copydoc CollisionShape::GetBulletShape
            virtual void ProtoSerialize(XML::Node& CurrentRoot) const;
            /// @copydoc CollisionShape::GetBulletShape
            virtual void ProtoDeSerialize(const XML::Node& OneNode);
            /// @brief Get the name of the the XML tag this class will leave behind as its instances are serialized.
            /// @return A string containing "CylinderCollisionShape"
            static String SerializableName();
        };// ©ylinderCollisionShape
    }//Physics
}//Mezzanine

/// @copydoc operator << (std::ostream& stream, const Mezzanine::Physics::CollisionShape& ShapeToSerialize)
std::ostream& MEZZ_LIB operator << (std::ostream& stream, const Mezzanine::Physics::CylinderCollisionShape& ShapeToSerialize);
/// @copydoc operator >> (std::istream& stream, Mezzanine::Physics::CollisionShape& x)
std::istream& MEZZ_LIB operator >> (std::istream& stream, Mezzanine::Physics::CylinderCollisionShape& x);
/// @copydoc operator >> (const Mezzanine::XML::Node& OneNode, Mezzanine::Physics::CollisionShape& x)
void MEZZ_LIB operator >> (const Mezzanine::XML::Node& OneNode, Mezzanine::Physics::CylinderCollisionShape& x);

#endif