internal void PlayAudioClip(AudioClip audioClip, TTSText ttsText, Action onTssEndedAction)
{
if (waitForEndOfAudioClipCoroutine != null)
{
ChatterBox.Instance.StopCoroutine(waitForEndOfAudioClipCoroutine);
Debug.LogWarning("Started an audio clip before previous audio clip ended.");
waitForEndOfAudioClipCoroutine = null;
}
if (TextDisplay != null)
{
TextDisplay.SetText(ttsText.DisplayText);
}
if (AudioSource != null)
{
AudioSource.PlayOneShot(audioClip);
}
else
{
Debug.LogWarning("Unable to play tts. No AudioSource given.");
}
waitForEndOfAudioClipCoroutine = ChatterBox.Instance.StartCoroutine(WaitForEndOfAudioClip(onTssEndedAction));
}
internal void Prepare(TTSText ttsText, TTS tts, Action <Action <Action> > onPreparedHandler, ECachingMode cachingMode = ECachingMode.CacheInFileSystem)
{
if (ChatterBox.Instance == null)
{
Debug.LogError("Unable to speak text. ChatterBox not ready.");
return;
}
string cacheName = tts.TextToSpeech.GetCacheFilename(ttsText.SpokenText);
if (cachingMode == ECachingMode.CacheInUnity)
{
string resourceName = cacheName.Substring(0, cacheName.Length - Path.GetExtension(cacheName).Length);
AudioClip audioClip = Resources.Load <AudioClip>(resourceName);
if (audioClip != null)
{
onPreparedHandler(onTssEndedAction => tts.PlayAudioClip(audioClip, ttsText, onTssEndedAction));
return;
}
}
if (cachingMode != ECachingMode.NoCaching)
{
string fileSystemName = Path.Combine(FilesystemCachePath, cacheName);
if (File.Exists(fileSystemName))
{
PrepareAudioClip(
cacheName,
cachingMode,
audioClip => onPreparedHandler(onTssEndedAction => tts.PlayAudioClip(audioClip, ttsText, onTssEndedAction))
);
return;
}
}
// no cache hit. Needs to be generated.
tts.TextToSpeech.CreateAudioFileFromText(
ttsText.SpokenText,
filename => PrepareAudioClip(
filename,
cachingMode,
audioClip => onPreparedHandler(onTssEndedAction => tts.PlayAudioClip(audioClip, ttsText, onTssEndedAction))
),
error => Debug.LogError(error)
);
}
