Torque3D/Engine/source/T3D/physics/bullet/btCasts.h
2012-09-19 11:15:01 -04:00

102 lines
3 KiB
C++

//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#ifndef _BULLET_CASTS_H_
#define _BULLET_CASTS_H_
#ifndef _BULLET_H_
#include "T3D/physics/bullet/bt.h"
#endif
#ifndef _MMATRIX_H_
#include "math/mMatrix.h"
#endif
#ifndef _MPOINT3_H_
#include "math/mPoint3.h"
#endif
#ifndef _MQUAT_H_
#include "math/mQuat.h"
#endif
template <class T, class F> inline T btCast( const F &from );
//-------------------------------------------------------------------------
template<>
inline Point3F btCast( const btVector3 &vec )
{
return Point3F( vec.x(), vec.y(), vec.z() );
}
template<>
inline btVector3 btCast( const Point3F &point )
{
return btVector3( point.x, point.y, point.z );
}
template<>
inline QuatF btCast( const btQuaternion &quat )
{
/// The Torque quat has the opposite winding order.
return QuatF( -quat.x(), -quat.y(), -quat.z(), quat.w() );
}
template<>
inline btQuaternion btCast( const QuatF &quat )
{
/// The Torque quat has the opposite winding order.
return btQuaternion( -quat.x, -quat.y, -quat.z, quat.w );
}
template<>
inline btTransform btCast( const MatrixF &xfm )
{
btTransform out;
out.getBasis().setValue( xfm[0], xfm[1], xfm[2],
xfm[4], xfm[5], xfm[6],
xfm[8], xfm[9], xfm[10] );
out.getOrigin().setValue( xfm[3], xfm[7], xfm[11] );
return out;
}
template<>
inline MatrixF btCast( const btTransform &xfm )
{
MatrixF out;
// Set the rotation.
out.setRow( 0, btCast<Point3F>( xfm.getBasis()[0] ) );
out.setRow( 1, btCast<Point3F>( xfm.getBasis()[1] ) );
out.setRow( 2, btCast<Point3F>( xfm.getBasis()[2] ) );
// The position.
out[3] = xfm.getOrigin().x();
out[7] = xfm.getOrigin().y();
out[11] = xfm.getOrigin().z();
// Clear out the rest.
out[12] = out[13] = out[14] = 0.0f;
out[15] = 1.0f;
return out;
}
#endif // _BULLET_CASTS_H_