public void update(float delta) {
delta *= timeScale;
for (int i = 0; i < tracks.size; i++) {
TrackEntry current = tracks.get(i);
if (current == null) continue;
float trackDelta = delta * current.timeScale;
float time = current.time + trackDelta;
float endTime = current.endTime;
current.time = time;
if (current.previous != null) {
current.previous.time += trackDelta;
current.mixTime += trackDelta;
}
// Check if completed the animation or a loop iteration.
if (current.loop
? (current.lastTime % endTime > time % endTime)
: (current.lastTime < endTime && time >= endTime)) {
int count = (int) (time / endTime);
if (current.listener != null) current.listener.complete(i, count);
for (int ii = 0, nn = listeners.size; ii < nn; ii++) listeners.get(ii).complete(i, count);
}
TrackEntry next = current.next;
if (next != null) {
if (time - trackDelta > next.delay) setCurrent(i, next);
} else {
// End non-looping animation when it reaches its end time and there is no next entry.
if (!current.loop && current.lastTime >= current.endTime) clearTrack(i);
}
}
}
/** @param last May be null. */
private TrackEntry trackEntry(
int trackIndex, Animation animation, boolean loop, TrackEntry last) {
TrackEntry entry = trackEntryPool.obtain();
entry.trackIndex = trackIndex;
entry.animation = animation;
entry.loop = loop;
entry.eventThreshold = 0;
entry.attachmentThreshold = 0;
entry.drawOrderThreshold = 0;
entry.animationStart = 0;
entry.animationEnd = animation.getDuration();
entry.animationLast = -1;
entry.nextAnimationLast = -1;
entry.delay = 0;
entry.trackTime = 0;
entry.trackLast = -1;
entry.nextTrackLast = -1;
entry.trackEnd = Float.MAX_VALUE;
entry.timeScale = 1;
entry.alpha = 1;
entry.mixAlpha = 1;
entry.mixTime = 0;
entry.mixDuration = last == null ? 0 : data.getMix(last.animation, animation);
return entry;
}
private void setCurrent(int index, TrackEntry entry) {
TrackEntry current = expandToIndex(index);
if (current != null) {
TrackEntry previous = current.previous;
current.previous = null;
if (current.listener != null) current.listener.end(index);
for (int i = 0, n = listeners.size; i < n; i++) listeners.get(i).end(index);
entry.mixDuration = data.getMix(current.animation, entry.animation);
if (entry.mixDuration > 0) {
entry.mixTime = 0;
// If a mix is in progress, mix from the closest animation.
if (previous != null && current.mixTime / current.mixDuration < 0.5f) {
entry.previous = previous;
previous = current;
} else entry.previous = current;
} else trackEntryPool.free(current);
if (previous != null) trackEntryPool.free(previous);
}
tracks.set(index, entry);
if (entry.listener != null) entry.listener.start(index);
for (int i = 0, n = listeners.size; i < n; i++) listeners.get(i).start(index);
}
/**
* Increments each track entry {@link TrackEntry#getTrackTime()}, setting queued animations as
* current if needed.
*/
public void update(float delta) {
delta *= timeScale;
for (int i = 0, n = tracks.size; i < n; i++) {
TrackEntry current = tracks.get(i);
if (current == null) continue;
current.animationLast = current.nextAnimationLast;
current.trackLast = current.nextTrackLast;
float currentDelta = delta * current.timeScale;
if (current.delay > 0) {
current.delay -= currentDelta;
if (current.delay > 0) continue;
currentDelta = -current.delay;
current.delay = 0;
}
TrackEntry next = current.next;
if (next != null) {
// When the next entry's delay is passed, change to the next entry, preserving leftover
// time.
float nextTime = current.trackLast - next.delay;
if (nextTime >= 0) {
next.delay = 0;
next.trackTime = nextTime + delta * next.timeScale;
current.trackTime += currentDelta;
setCurrent(i, next, true);
while (next.mixingFrom != null) {
next.mixTime += currentDelta;
next = next.mixingFrom;
}
continue;
}
} else {
// Clear the track when there is no next entry, the track end time is reached, and there is
// no mixingFrom.
if (current.trackLast >= current.trackEnd && current.mixingFrom == null) {
tracks.set(i, null);
queue.end(current);
disposeNext(current);
continue;
}
}
updateMixingFrom(current, delta);
current.trackTime += currentDelta;
}
queue.drain();
}
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);
}
private void setCurrent(int index, TrackEntry entry) {
TrackEntry current = expandToIndex(index);
if (current != null) {
if (current.previous != null) {
Pools.free(current.previous);
current.previous = null;
}
if (current.listener != null) current.listener.end(index);
for (int i = 0, n = listeners.size; i < n; i++) listeners.get(i).end(index);
entry.mixDuration = data.getMix(current.animation, entry.animation);
if (entry.mixDuration > 0) {
entry.mixTime = 0;
entry.previous = current;
} else Pools.free(current);
}
tracks.set(index, entry);
if (entry.listener != null) entry.listener.start(index);
for (int i = 0, n = listeners.size; i < n; i++) listeners.get(i).start(index);
}
public void update(float delta) {
delta *= timeScale;
for (int i = 0; i < tracks.size; i++) {
TrackEntry current = tracks.get(i);
if (current == null) continue;
current.time += delta * current.timeScale;
if (current.previous != null) {
float previousDelta = delta * current.previous.timeScale;
current.previous.time += previousDelta;
current.mixTime += previousDelta;
}
TrackEntry next = current.next;
if (next != null) {
next.time = current.lastTime - next.delay;
if (next.time >= 0) setCurrent(i, next);
} else {
// End non-looping animation when it reaches its end time and there is no next entry.
if (!current.loop && current.lastTime >= current.endTime) clearTrack(i);
}
}
}
