// Play will play the sound. Volume ( 1.0 is normal volume, 0 is silence )
// Returns the PlayInstance that can be used to stop the source while playing
func (s *Sound) Play(volume float32) (request PlayInstance) {
source, err := requestSource()
if err != nil {
return request
}
C.alSourcef(source.id, C.AL_GAIN, C.ALfloat(volume))
C.alSourcei(source.id, C.AL_SOURCE_RELATIVE, C.AL_TRUE)
C.alSource3f(source.id, C.AL_POSITION, 0, 0, 0)
C.alSourcei(source.id, C.AL_BUFFER, C.ALint(s.buffer))
source.setToPlay()
request.id = source.requestId
request.src = source
return request
}
// Play will play the sound at a given position, the falloff distance in which the sound's volume is cut in half,
// and the volume ( 1.0 is normal volume, 0 is silence )
// It will return the PlayInstance that can be used to stop the source while playing
// Remember that in order for the 3D audio to work properly that the audio needs to be all in one channel, not stereo!
func (s *Sound) Play3D(x, y, z, falloff, volume float32) (request PlayInstance) {
source, err := requestSource()
if err != nil {
return request
}
C.alSourcef(source.id, C.AL_GAIN, C.ALfloat(volume))
C.alSourcei(source.id, C.AL_SOURCE_RELATIVE, C.AL_FALSE)
C.alSourcef(source.id, C.AL_REFERENCE_DISTANCE, C.ALfloat(falloff))
C.alSource3f(source.id, C.AL_POSITION, C.ALfloat(x), C.ALfloat(y), C.ALfloat(z))
C.alSourcei(source.id, C.AL_BUFFER, C.ALint(s.buffer))
source.setToPlay()
request.id = source.requestId
request.src = source
return request
}
func (source Source) SetLooping(isLooping bool) error {
var i int
if isLooping {
i = 1
} else {
i = 0
}
C.alSourcei(source.source, C.AL_LOOPING, C.ALint(C.int(i)))
return GetError()
}
func (source Source) SetSourceRelative(isRelative bool) error {
var i int
if isRelative {
i = 1
} else {
i = 0
}
C.alSourcei(source.source, C.AL_SOURCE_RELATIVE, C.ALint(C.int(i)))
return GetError()
}
// TODO: can't pass buffer really...
func (self *Source) SetAttr(param int, value *Buffer) {
C.alSourcei(self.handle, C.ALenum(param), C.ALint(value.handle))
}
// Renamed, was Sourcei.
func (self Source) Seti(param int32, value int32) {
C.alSourcei(C.ALuint(self), C.ALenum(param), C.ALint(value))
}
func alSourcei(s Source, k int, v int32) {
C.alSourcei(C.ALuint(s), C.ALenum(k), C.ALint(v))
}
func (source Source) Sourcei(param ALenum, value int) {
C.alSourcei(C.ALuint(source), C.ALenum(param), C.ALint(value))
}
func setSourcei(s Source, param int, v int32) {
C.alSourcei(C.ALuint(s), C.ALenum(param), C.ALint(v))
}
func (source Source) SetState(state SourceState) error {
C.alSourcei(source.source, C.AL_SOURCE_STATE, C.ALint(state))
return GetError()
}
func (source Source) ClearBuffer(buf Buffer) error {
C.alSourcei(source.source, C.AL_BUFFER, C.ALint(C.int(0)))
return GetError()
}
func (source Source) SetBuffer(buf Buffer) error {
C.alSourcei(source.source, C.AL_BUFFER, C.ALint(buf.buffer))
return GetError()
}
func (source Source) SetConeOuterAngle(i int) error {
C.alSourcei(source.source, C.AL_CONE_OUTER_ANGLE, C.ALint(C.int(i)))
return GetError()
}