private void updateMixingFrom(TrackEntry entry, float delta) {
TrackEntry from = entry.mixingFrom;
if (from == null) return;
updateMixingFrom(from, delta);
if (entry.mixTime >= entry.mixDuration && from.mixingFrom == null && entry.mixTime > 0) {
entry.mixingFrom = null;
queue.end(from);
return;
}
from.animationLast = from.nextAnimationLast;
from.trackLast = from.nextTrackLast;
from.trackTime += delta * from.timeScale;
entry.mixTime += delta * entry.timeScale;
}
private void setCurrent(int index, TrackEntry current, boolean interrupt) {
TrackEntry from = expandToIndex(index);
tracks.set(index, current);
if (from != null) {
if (interrupt) queue.interrupt(from);
current.mixingFrom = from;
current.mixTime = 0;
from.timelinesRotation.clear(); // Reset rotation for mixing out, in case entry was mixed in.
// If not completely mixed in, set mixAlpha so mixing out happens from current mix to zero.
if (from.mixingFrom != null && from.mixDuration > 0)
current.mixAlpha *= Math.min(from.mixTime / from.mixDuration, 1);
}
queue.start(current);
}
/**
* Removes all animations from the track, leaving skeletons in their previous pose.
*
* <p>It may be desired to use {@link AnimationState#setEmptyAnimation(int, float)} to mix the
* skeletons back to the setup pose, rather than leaving them in their previous pose.
*/
public void clearTrack(int trackIndex) {
if (trackIndex >= tracks.size) return;
TrackEntry current = tracks.get(trackIndex);
if (current == null) return;
queue.end(current);
disposeNext(current);
TrackEntry entry = current;
while (true) {
TrackEntry from = entry.mixingFrom;
if (from == null) break;
queue.end(from);
entry.mixingFrom = null;
entry = from;
}
tracks.set(current.trackIndex, null);
queue.drain();
}