sf::SoundSource Class Reference

Base class defining a sound's properties. More...

#include <SFML/Audio/SoundSource.hpp>

Inheritance diagram for sf::SoundSource:

Public Types
enum	Status { Stopped , Paused , Playing }
	Enumeration of the sound source states. More...

Public Member Functions
	SoundSource (const SoundSource &copy)
	Copy constructor.
virtual	~SoundSource ()
	Destructor.
void	setPitch (float pitch)
	Set the pitch of the sound.
void	setVolume (float volume)
	Set the volume of the sound.
void	setPosition (float x, float y, float z)
	Set the 3D position of the sound in the audio scene.
void	setPosition (const Vector3f &position)
	Set the 3D position of the sound in the audio scene.
void	setRelativeToListener (bool relative)
	Make the sound's position relative to the listener or absolute.
void	setMinDistance (float distance)
	Set the minimum distance of the sound.
void	setAttenuation (float attenuation)
	Set the attenuation factor of the sound.
float	getPitch () const
	Get the pitch of the sound.
float	getVolume () const
	Get the volume of the sound.
Vector3f	getPosition () const
	Get the 3D position of the sound in the audio scene.
bool	isRelativeToListener () const
	Tell whether the sound's position is relative to the listener or is absolute.
float	getMinDistance () const
	Get the minimum distance of the sound.
float	getAttenuation () const
	Get the attenuation factor of the sound.
SoundSource &	operator= (const SoundSource &right)
	Overload of assignment operator.
virtual void	play ()=0
	Start or resume playing the sound source.
virtual void	pause ()=0
	Pause the sound source.
virtual void	stop ()=0
	Stop playing the sound source.
virtual Status	getStatus () const
	Get the current status of the sound (stopped, paused, playing)

Protected Member Functions
	SoundSource ()
	Default constructor.

Protected Attributes
unsigned int	m_source
	OpenAL source identifier.

Detailed Description

Base class defining a sound's properties.

sf::SoundSource is not meant to be used directly, it only serves as a common base for all audio objects that can live in the audio environment.

It defines several properties for the sound: pitch, volume, position, attenuation, etc. All of them can be changed at any time with no impact on performances.

See also

sf::Sound, sf::SoundStream

Definition at line 42 of file SoundSource.hpp.

Member Enumeration Documentation

Status

enum sf::SoundSource::Status

Enumeration of the sound source states.

Enumerator
Stopped	Sound is not playing.
Paused	Sound is paused.
Playing	Sound is playing.

Definition at line 50 of file SoundSource.hpp.

Constructor & Destructor Documentation

SoundSource() [1/2]

sf::SoundSource::SoundSource

(

const SoundSource &

copy

)

Copy constructor.

Parameters

copy	Instance to copy

~SoundSource()

virtual sf::SoundSource::~SoundSource ( )

virtual

Destructor.

SoundSource() [2/2]

sf::SoundSource::SoundSource ( )

protected

Default constructor.

This constructor is meant to be called by derived classes only.

Member Function Documentation

getAttenuation()

float sf::SoundSource::getAttenuation

(

)

const

Get the attenuation factor of the sound.

Returns

Attenuation factor of the sound

See also

setAttenuation, getMinDistance

getMinDistance()

float sf::SoundSource::getMinDistance

(

)

const

Get the minimum distance of the sound.

Returns

Minimum distance of the sound

See also

setMinDistance, getAttenuation

getPitch()

float sf::SoundSource::getPitch

(

)

const

Get the pitch of the sound.

Returns

Pitch of the sound

See also

setPitch

getPosition()

Vector3f sf::SoundSource::getPosition

(

)

const

Get the 3D position of the sound in the audio scene.

Returns

Position of the sound

See also

setPosition

getStatus()

virtual Status sf::SoundSource::getStatus ( ) const

virtual

Get the current status of the sound (stopped, paused, playing)

Returns

Current status of the sound

Reimplemented in sf::Sound, and sf::SoundStream.

getVolume()

float sf::SoundSource::getVolume

(

)

const

Get the volume of the sound.

Returns

Volume of the sound, in the range [0, 100]

See also

setVolume

isRelativeToListener()

bool sf::SoundSource::isRelativeToListener

(

)

const

Tell whether the sound's position is relative to the listener or is absolute.

Returns

True if the position is relative, false if it's absolute

See also

setRelativeToListener

operator=()

SoundSource & sf::SoundSource::operator=

(

const SoundSource &

right

)

Overload of assignment operator.

Parameters

right

Instance to assign

Returns

Reference to self

pause()

virtual void sf::SoundSource::pause ( )

pure virtual

Pause the sound source.

This function pauses the source if it was playing, otherwise (source already paused or stopped) it has no effect.

See also

play, stop

Implemented in sf::Sound, and sf::SoundStream.

play()

virtual void sf::SoundSource::play ( )

pure virtual

Start or resume playing the sound source.

This function starts the source if it was stopped, resumes it if it was paused, and restarts it from the beginning if it was already playing.

See also

pause, stop

Implemented in sf::Sound, and sf::SoundStream.

setAttenuation()

void sf::SoundSource::setAttenuation

(

float

attenuation

)

Set the attenuation factor of the sound.

The attenuation is a multiplicative factor which makes the sound more or less loud according to its distance from the listener. An attenuation of 0 will produce a non-attenuated sound, i.e. its volume will always be the same whether it is heard from near or from far. On the other hand, an attenuation value such as 100 will make the sound fade out very quickly as it gets further from the listener. The default value of the attenuation is 1.

Parameters

attenuation

New attenuation factor of the sound

See also

getAttenuation, setMinDistance

setMinDistance()

void sf::SoundSource::setMinDistance

(

float

distance

)

Set the minimum distance of the sound.

The "minimum distance" of a sound is the maximum distance at which it is heard at its maximum volume. Further than the minimum distance, it will start to fade out according to its attenuation factor. A value of 0 ("inside the head of the listener") is an invalid value and is forbidden. The default value of the minimum distance is 1.

Parameters

distance

New minimum distance of the sound

See also

getMinDistance, setAttenuation

setPitch()

void sf::SoundSource::setPitch

(

float

pitch

)

Set the pitch of the sound.

The pitch represents the perceived fundamental frequency of a sound; thus you can make a sound more acute or grave by changing its pitch. A side effect of changing the pitch is to modify the playing speed of the sound as well. The default value for the pitch is 1.

Parameters

pitch

New pitch to apply to the sound

See also

getPitch

setPosition() [1/2]

void sf::SoundSource::setPosition

(

const Vector3f &

position

)

Set the 3D position of the sound in the audio scene.

Only sounds with one channel (mono sounds) can be spatialized. The default position of a sound is (0, 0, 0).

Parameters

position

Position of the sound in the scene

See also

getPosition

setPosition() [2/2]

void sf::SoundSource::setPosition	(	float	x,
		float	y,
		float	z
	)

Set the 3D position of the sound in the audio scene.

Only sounds with one channel (mono sounds) can be spatialized. The default position of a sound is (0, 0, 0).

Parameters

x	X coordinate of the position of the sound in the scene
y	Y coordinate of the position of the sound in the scene
z	Z coordinate of the position of the sound in the scene

See also

getPosition

setRelativeToListener()

void sf::SoundSource::setRelativeToListener

(

bool

relative

)

Make the sound's position relative to the listener or absolute.

Making a sound relative to the listener will ensure that it will always be played the same way regardless of the position of the listener. This can be useful for non-spatialized sounds, sounds that are produced by the listener, or sounds attached to it. The default value is false (position is absolute).

Parameters

relative

True to set the position relative, false to set it absolute

See also

isRelativeToListener

setVolume()

void sf::SoundSource::setVolume

(

float

volume

)

Set the volume of the sound.

The volume is a value between 0 (mute) and 100 (full volume). The default value for the volume is 100.

Parameters

volume

Volume of the sound

See also

getVolume

stop()

virtual void sf::SoundSource::stop ( )

pure virtual

Stop playing the sound source.

This function stops the source if it was playing or paused, and does nothing if it was already stopped. It also resets the playing position (unlike pause()).

See also

play, pause

Implemented in sf::Sound, and sf::SoundStream.

Member Data Documentation

m_source

unsigned int sf::SoundSource::m_source

protected

OpenAL source identifier.

Definition at line 309 of file SoundSource.hpp.

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The documentation for this class was generated from the following file:

• SoundSource.hpp