oasisconvert.h

使用stl技术,(还没看,是听说的)

/******************************************************************************
 * This source file is part of Bad Camel Gaming
 * Copyright (C) 2003  Zephie Greyvenstein
 * See Readme.html for acknowledgements
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *****************************************************************************/

/******************************************************************************
 * FILENAME    : oasisConvert.h
 * DESCRIPTION : Tools for converting between various libs data types
 * AUTHOR      : Zephie Greyvenstein
 *****************************************************************************/

/// Avoid double inclusion
#ifndef __CONVERT_H__
#define __CONVERT_H__

/// Include common stuff
#include "oasisCommon.h"
#include "oasisVector3.h"
#include "oasisQuaternion.h"
#include "oasisColour.h"
#include "oasisPhysicsCommon.h"

/// Include Ogre stuff
#include "OgreVector3.h"
#include "OgreQuaternion.h"
#include "OgreColourValue.h"

namespace Oasis {
  /// A helper class to convert between the various library's data types
  class convert {
  public:
    /// Convert an Ogre vector to a standard vector
    static inline vector3 parseVector3( const Ogre::Vector3 &vec ) {
      return vector3( vec.x, vec.y, vec.z );
    } 
    /// Convert an Ogre quaternion to a standard quaternion
    static inline quaternion parseQuaternion( const Ogre::Quaternion &quat ) {
      return quaternion( quat.w, quat.x, quat.y, quat.z );
    }
    /// Convert an ODE vector3 to a standard vector3
    static inline vector3 parseVector3( const dReal *vec ) {
      return vector3( ( real )vec[ 0 ], 
		      ( real )vec[ 1 ],
		      ( real )vec[ 2 ] );
    }
    /// Convert an ODE quaternion to a standard quaternion
    static inline quaternion parseQuaternion( const dQuaternion quat ) {
      return quaternion( ( real )quat[ 0 ],
			 ( real )quat[ 1 ], 
			 ( real )quat[ 2 ], 
			 ( real )quat[ 3 ] );
    }
    /// Convert an Ogre colour to a standard colour
    static inline colour parseColour( const Ogre::ColourValue &col ) {
      return colour( col.r, col.g, col.b, col.a );
    } 

    /// Convert a standard vector to an Ogre vector
    static inline Ogre::Vector3 toOgreVector3( const vector3 &vec ) {
      return Ogre::Vector3( vec.x, vec.y, vec.z );
    }
    /// Convert a standard quaternion to an Ogre quaternion
    static inline Ogre::Quaternion toOgreQuaternion( const quaternion &quat ) {
      return Ogre::Quaternion( quat.w, quat.x, quat.y, quat.z );
    }
    /// Convert a standard colour to an Ogre colour
    static inline Ogre::ColourValue toOgreColour( const colour &col ) {
      return Ogre::ColourValue( col.red, col.green, col.blue, col.alpha );
    }
    /// Convert a standard quaternion to an ODE quaternion
    static inline void toODEQuaternion( dQuaternion &odeQuat, 
					const quaternion &quat ) {
      odeQuat[ 0 ] = quat.w;
      odeQuat[ 1 ] = quat.x;
      odeQuat[ 2 ] = quat.y;
      odeQuat[ 3 ] = quat.z;
    }
  };
};

#endif