/** Callback called when we finish playing music. */
void musicFinished()
{
Mix_HaltMusic();
Mix_FreeMusic( current_music );
current_music = nullptr;
const auto iter = playlists.find( current_playlist );
if( iter == playlists.end() ) {
return;
}
const music_playlist &list = iter->second;
if( list.entries.empty() ) {
return;
}
// Load the next file to play.
absolute_playlist_at++;
// Wrap around if we reached the end of the playlist.
if( absolute_playlist_at >= list.entries.size() ) {
absolute_playlist_at = 0;
}
current_playlist_at = playlist_indexes.at( absolute_playlist_at );
const auto &next = list.entries[current_playlist_at];
play_music_file( next.file, next.volume );
}
void play_music( const std::string &playlist )
{
const auto iter = playlists.find( playlist );
if( iter == playlists.end() ) {
return;
}
const music_playlist &list = iter->second;
if( list.entries.empty() ) {
return;
}
// Don't interrupt playlist that's already playing.
if( playlist == current_playlist ) {
return;
}
for( size_t i = 0; i < list.entries.size(); i++ ) {
playlist_indexes.push_back( i );
}
if( list.shuffle ) {
static auto eng = std::default_random_engine(
std::chrono::system_clock::now().time_since_epoch().count() );
std::shuffle( playlist_indexes.begin(), playlist_indexes.end(), eng );
}
current_playlist = playlist;
current_playlist_at = playlist_indexes.at( absolute_playlist_at );
const auto &next = list.entries[current_playlist_at];
play_music_file( next.file, next.volume );
}
void play_music( std::string playlist )
{
const auto iter = playlists.find( playlist );
if( iter == playlists.end() ) {
return;
}
const music_playlist &list = iter->second;
if( list.entries.empty() ) {
return;
}
// Don't interrupt playlist that's already playing.
if( playlist == current_playlist ) {
return;
}
for( size_t i = 0; i < list.entries.size(); i++ ) {
playlist_indexes.push_back( i );
}
if( list.shuffle ) {
std::random_shuffle( playlist_indexes.begin(), playlist_indexes.end() );
}
current_playlist = playlist;
current_playlist_at = playlist_indexes.at( absolute_playlist_at );
const auto &next = list.entries[current_playlist_at];
play_music_file( next.file, next.volume );
}
