// FadeIn (https://www.libsdl.org/projects/SDL_mixer/docs/SDL_mixer_58.html)
func (music *Music) FadeIn(loops, ms int) error {
_music := (*C.Mix_Music)(unsafe.Pointer(music))
_loops := (C.int)(loops)
_ms := (C.int)(ms)
if C.Mix_FadeInMusic(_music, _loops, _ms) == -1 {
return sdl.GetError()
}
return nil
}
// Play the music and loop a specified number of times. During the first loop,
// fade in for the milliseconds specified. Passing -1 makes the music loop
// continuously. The fade-in effect only occurs during the first loop.
func (m *Music) FadeInMusic(loops, ms int) int {
return int(C.Mix_FadeInMusic(m.cmusic, C.int(loops), C.int(ms)))
}
// Fade in music or a channel over "ms" milliseconds, same semantics
// as the "Play" functions
func FadeInMusic(music * C.Mix_Music, loops int, ms int) (int) {
return int(C.Mix_FadeInMusic(music, C.int(loops), C.int(ms)))
}
func (music *Music) FadeIn(loops, ms int) bool {
_music := (*C.Mix_Music)(unsafe.Pointer(music))
_loops := (C.int)(loops)
_ms := (C.int)(ms)
return int(C.Mix_FadeInMusic(_music, _loops, _ms)) == 0
}
func (t *Music) FadeInLoops(duration float64, loops int) {
if C.Mix_FadeInMusic(t.mus, C.int(loops), C.int(duration*1000.0)) == -1 {
panic(fmt.Sprintf("Unable to FadeIn Music file (%v): %v", t.name, util.GetMixError()))
}
}