khanat-opennel-code/code/nel/include/nel/sound/u_listener.h
2010-05-06 02:08:41 +02:00

93 lines
2.6 KiB
C++

// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef NL_U_LISTENER_H
#define NL_U_LISTENER_H
#include "nel/misc/types_nl.h"
namespace NLMISC {
class CVector;
}
namespace NLSOUND {
/**
* Game interface for listener control.
*
* For arguments as 3D vectors, use the NeL vector coordinate system:
* \verbatim
* (top)
* z
* | y (front)
* | /
* -----x (right)
* \endverbatim
* \author Olivier Cado
* \author Nevrax France
* \date 2001
*/
class UListener
{
public:
/// \name Listener properties
//@{
/// Set the position vector (default: (0,0,0)) (3D mode only)
virtual void setPos( const NLMISC::CVector& pos ) = 0;
/** Get the position vector.
* See setPos() for details.
*/
virtual const NLMISC::CVector & getPos() const = 0;
/// Set the velocity vector (3D mode only, ignored in stereo mode) (default: (0,0,0))
virtual void setVelocity( const NLMISC::CVector& vel ) = 0;
/// Get the velocity vector
virtual void getVelocity( NLMISC::CVector& vel ) const = 0;
/// Set the orientation vectors (3D mode only, ignored in stereo mode) (default: (0,1,0), (0,0,1))
virtual void setOrientation( const NLMISC::CVector& front, const NLMISC::CVector& up ) = 0;
/// Get the orientation vectors
virtual void getOrientation( NLMISC::CVector& front, NLMISC::CVector& up ) const = 0;
/** Set the gain (volume value inside [0 , 1]). (default: 1)
* 0.0 -> silence
* 0.5 -> -6dB
* 1.0 -> no attenuation
* values > 1 (amplification) not supported by most drivers
*/
virtual void setGain( float gain ) = 0;
/// Get the gain
virtual float getGain() const = 0;
//@}
/// Destructor
virtual ~UListener() {}
protected:
/// Constructor
UListener() {}
};
} // NLSOUND
#endif // NL_U_LISTENER_H
/* End of u_listener.h */