updateMixingFrom method
Implementation
bool updateMixingFrom(TrackEntry to, double delta) {
final TrackEntry? from = to.mixingFrom;
if (from == null) return true;
final bool finished = updateMixingFrom(from, delta);
// Require mixTime > 0 to ensure the mixing from entry was applied at least once.
if (to.mixTime > 0 && (to.mixTime >= to.mixDuration || to.timeScale == 0)) {
// Require totalAlpha == 0 to ensure mixing is complete, unless mixDuration == 0 (the transition is a single frame).
if (from.totalAlpha == 0 || to.mixDuration == 0) {
to
..mixingFrom = from.mixingFrom
..interruptAlpha = from.interruptAlpha;
queue.end(from);
}
return finished;
}
from
..animationLast = from.nextAnimationLast
..trackLast = from.nextTrackLast
..trackTime = from.trackTime + delta * from.timeScale;
to.mixTime = to.mixTime + delta * to.timeScale;
return false;
}