JointBall.h

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/*********************************************************\
 *  File: JointBall.h                                    *
 *
 *  Copyright (C) 2002-2012 The PixelLight Team (http://www.pixellight.org/)
 *
 *  This file is part of PixelLight.
 *
 *  PixelLight is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  PixelLight is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with PixelLight. If not, see <http://www.gnu.org/licenses/>.
\*********************************************************/


#ifndef __PLPHYSICS_JOINTBALL_H__
#define __PLPHYSICS_JOINTBALL_H__
#pragma once


//[-------------------------------------------------------]
//[ Includes                                              ]
//[-------------------------------------------------------]
#include <PLMath/Vector3.h>
#include "PLPhysics/Joint.h"


//[-------------------------------------------------------]
//[ Namespace                                             ]
//[-------------------------------------------------------]
namespace PLPhysics {


//[-------------------------------------------------------]
//[ Classes                                               ]
//[-------------------------------------------------------]
/**
*  @brief
*    Abstract PL physics ball and socket (other name: spherical) joint
*
*  @remarks
*    DOFs removed: 3 DOFs remaining: 3
*
*  @note
*    - All non-zero value for 'MaxConeAngle' are clamped between 5 degree and 175 degrees
*/
class JointBall : public Joint {


    //[-------------------------------------------------------]
    //[ Public functions                                      ]
    //[-------------------------------------------------------]
    public:
        /**
        *  @brief
        *    Destructor
        */
        PLPHYSICS_API virtual ~JointBall();

        /**
        *  @brief
        *    Returns the origin of the ball and socket in world space
        *
        *  @return
        *    The origin of the ball and socket in world space
        */
        PLPHYSICS_API const PLMath::Vector3 &GetPivotPoint() const;

        /**
        *  @brief
        *    Returns the vector defining the cone axis in world space
        *
        *  @return
        *    The vector defining the cone axis in world space
        */
        PLPHYSICS_API const PLMath::Vector3 &GetPinDir() const;


    //[-------------------------------------------------------]
    //[ Protected functions                                   ]
    //[-------------------------------------------------------]
    protected:
        /**
        *  @brief
        *    Constructor
        *
        *  @param[in] cWorld
        *    World this joint is in
        *  @param[in] cJointImpl
        *    Reference to the physics API specific joint implementation
        *  @param[in] pParentBody
        *    Pointer to the parent rigid body, can be a null pointer
        *  @param[in] pChildBody
        *    Pointer to the attached rigid body, can be a null pointer
        *  @param[in] vPivotPoint
        *    Origin of the ball and socket in world space
        *  @param[in] vPinDir
        *    Vector defining the cone axis in world space
        */
        PLPHYSICS_API JointBall(World &cWorld, JointImpl &cJointImpl, Body *pParentBody, Body *pChildBody,
                                const PLMath::Vector3 &vPivotPoint, const PLMath::Vector3 &vPinDir);


    //[-------------------------------------------------------]
    //[ Protected data                                        ]
    //[-------------------------------------------------------]
    protected:
        PLMath::Vector3 m_vPivotPoint;  /**< Origin of the ball and socket in world space */
        PLMath::Vector3 m_vPinDir;      /**< Vector defining the cone axis in world space */
        // [TODO]
        // float            m_fMaxConeAngle;
        // float            m_fMaxTwistAngle;


};


//[-------------------------------------------------------]
//[ Namespace                                             ]
//[-------------------------------------------------------]
} // PLPhysics


#endif // __PLPHYSICS_JOINTBALL_H__