// this method fades the volume of a player with playerId in (start == true) or out (start == false)
// it also starts playing a track with currentTrack id if start == true
// and stops playing a current track otherwise
IEnumerator FadeMusicTrack(int playerId, bool up, bool loop = false)
{
MusicPlayer currentPlayer = musicPlayers[playerId];
currentPlayer.fading = true;
currentPlayer.trackId = currentTrack;
AudioSource actualPlayer = currentPlayer.actualPlayer;
if (up || currentPlayer.trackId != AudioTrackEnum.Unknown)
{
AudioTrackControl track = MusicTracks[currentTrack];
if (up)
{
if (currentPlayer.playerCouroutine != null)
{
StopCoroutine(currentPlayer.playerCouroutine);
}
if (actualPlayer.isPlaying)
{
actualPlayer.Stop();
}
}
if (up)
{
ResetMusicMusicPlayer(currentPlayer, track);
// set the track and play
currentPlayer.loop = loop;
actualPlayer.clip = track.clip;
actualPlayer.Play();
currentPlayer.playerCouroutine = StartCoroutine(SubclipMusicPlayer());
}
// now fade the volume
float startVolume = actualPlayer.volume;
float endVolume = up ? track.volume * MaxMusicVolume : 0;
float currentTime = 0;
while (currentTime < Parameters.MusicCrossFadeTime)
{
currentTime += Time.deltaTime;
actualPlayer.volume = Mathf.Lerp(startVolume, endVolume, currentTime / Parameters.MusicCrossFadeTime);
yield return(null);
}
actualPlayer.volume = endVolume;
if (!up)
{
if (currentPlayer.playerCouroutine != null)
{
StopCoroutine(currentPlayer.playerCouroutine);
}
currentPlayer.playerCouroutine = null;
actualPlayer.Stop();
GlobalManager.MInstantMessage.DeliverMessage(InstantMessageType.MusicTrackPlayed, this, currentPlayer.trackId);
}
currentPlayer.fading = false;
}
}
void PromoteToNextMusicSubclip(MusicPlayer currentMusicPlayer, AudioTrackControl track)
{
if (track.subclips.Length > 0)
{
if (track.subclipOrder.Length > 0)
{
currentMusicPlayer.order = (currentMusicPlayer.order + 1) % track.subclipOrder.Length;
currentMusicPlayer.subclip = track.subclipOrder[currentMusicPlayer.order];
}
else
{
currentMusicPlayer.order = 0;
currentMusicPlayer.subclip = 0;
}
currentMusicPlayer.startTime = track.subclips[currentMusicPlayer.subclip].min;
currentMusicPlayer.endTime = track.subclips[currentMusicPlayer.subclip].max;
}
else
{
currentMusicPlayer.order = 0;
currentMusicPlayer.startTime = 0;
currentMusicPlayer.endTime = track.clip.length;
}
}
// this method plays subclips of the currentTrack with currentPlayer using specified subclip order
// if no subclips or their order defined it plays the full track from its beginning to the end
// the underlying AudioSource is already playing
IEnumerator SubclipMusicPlayer()
{
if (Parameters.Tracks.Count > 0)
{
int startPlayerId = currentMusicPlayerId;
MusicPlayer currentMusicPlayer = musicPlayers[currentMusicPlayerId];
AudioSource actualPlayer = currentMusicPlayer.actualPlayer;
AudioTrackControl track = MusicTracks[currentTrack];
do
{
// prepare subclip play parameters
float startTime = currentMusicPlayer.startTime;
float waitTime = currentMusicPlayer.endTime - startTime;
//Debug.Log("Playing subclip " + currentMusicPlayer.subclip.ToString() + " from " + startTime.ToString() + ", waiting for " + waitTime.ToString());
// do the actual play
actualPlayer.time = startTime;
// ensure that actual player is really playing
if (!actualPlayer.isPlaying)
{
actualPlayer.Play();
}
yield return(new WaitForSeconds(waitTime));
// move to the next subclip
PromoteToNextMusicSubclip(currentMusicPlayer, track);
//Debug.Log("Subclip order " + currentMusicPlayer.order.ToString() + "/" + track.subclipOrder.Length.ToString());
}while (currentMusicPlayer.loop || currentMusicPlayer.order < track.subclipOrder.Length);
// forcibly stop playing
actualPlayer.Stop();
if (startPlayerId == currentMusicPlayerId)
{
currentMusicPlayerId = -1;
}
GlobalManager.MInstantMessage.DeliverMessage(InstantMessageType.MusicTrackPlayed, this, track.id);
}
}
void ResetMusicMusicPlayer(MusicPlayer currentMusicPlayer, AudioTrackControl track)
{
currentMusicPlayer.order = -1;
currentMusicPlayer.subclip = -1;
PromoteToNextMusicSubclip(currentMusicPlayer, track);
}