public override void PlayStart(ITarget itarget, float frame, int frameRate, float animScale)
{
if (frame > 0)
{
AudioSource src = GetTarget(itarget) as AudioSource;
if (!src)
{
return;
}
float time;
for (int i = keys.Count - 1; i >= 0; i--)
{
AudioKey key = keys[i] as AudioKey;
if (!key.audioClip)
{
break;
}
if (key.frame <= frame)
{
src.pitch = itarget.animScale * animScale;
if (!key.oneShot)
{
// get time
time = ((frame - key.frame) / frameRate);
// if loop is set to false and is beyond length, then return
if (!key.loop && time > key.audioClip.length)
{
break;
}
if (src.isPlaying && src.clip != key.audioClip)
{
src.Stop();
}
// find time based on length
time = time % key.audioClip.length;
src.clip = key.audioClip;
src.loop = key.loop;
src.time = time;
src.Play();
}
mLastSampleKeyIndex = i;
break;
}
}
}
}
public override void previewFrame(ITarget target, float frame, int frameRate, bool play, float playSpeed)
{
AudioSource src = GetTarget(target) as AudioSource;
if (!src)
{
return;
}
if (play)
{
int iFrame = Mathf.RoundToInt(frame);
for (int i = keys.Count - 1; i >= 0; i--)
{
if (keys[i].frame <= iFrame && mLastSampleKeyIndex != i)
{
AudioKey key = keys[i] as AudioKey;
src.pitch = target.animScale * playSpeed;
if (key.oneShot)
{
src.PlayOneShot(key.audioClip);
}
else
{
if (src.isPlaying && src.clip != key.audioClip)
{
src.Stop();
}
src.clip = key.audioClip;
src.loop = key.loop;
src.time = keys[i].frame == iFrame ? 0f : ((frame - key.frame) / frameRate) % key.audioClip.length;
src.Play();
}
mLastSampleKeyIndex = i;
break;
}
}
}
else
{
src.loop = false;
mLastSampleKeyIndex = -1;
}
}
// add a new key
public void addKey(ITarget itarget, int _frame, AudioClip _clip, bool _loop)
{
foreach (AudioKey key in keys)
{
// if key exists on frame, update key
if (key.frame == _frame)
{
key.audioClip = _clip;
key.loop = _loop;
// update cache
updateCache(itarget);
}
}
AudioKey a = new AudioKey();
a.frame = _frame;
a.audioClip = _clip;
a.loop = _loop;
// add a new key
keys.Add(a);
// update cache
updateCache(itarget);
}