@Override
void computeTangent(KeyFrame prev, KeyFrame next) {
tgPVec = Vec.multiply(Vec.subtract(next.position(), prev.position()), 0.5f);
tgQuat =
Quat.squadTangent(
(Quat) prev.orientation(), (Quat) orientation(), (Quat) next.orientation());
}
/**
* Internal use. Calls {@link #invalidateValues()} if a keyFrame (frame) defining the path was
* recently modified.
*/
protected void checkValidity() {
boolean flag = false;
for (KeyFrame element : keyFrameList) {
if (element.frame().lastUpdate() > lastUpdate()) {
flag = true;
break;
}
}
if (flag) {
this.invalidateValues();
this.checked();
}
}
protected void updateModifiedFrameValues() {
KeyFrame kf;
KeyFrame prev = keyFrameList.get(0);
kf = keyFrameList.get(0);
int index = 1;
while (kf != null) {
KeyFrame next = (index < keyFrameList.size()) ? keyFrameList.get(index) : null;
index++;
if (next != null) kf.computeTangent(prev, next);
else kf.computeTangent(prev, kf);
prev = kf;
kf = next;
}
valuesAreValid = true;
}
protected KeyFrameInterpolator(KeyFrameInterpolator otherKFI) {
this.gScene = otherKFI.gScene;
this.path = new ArrayList<Frame>();
ListIterator<Frame> frameIt = otherKFI.path.listIterator();
while (frameIt.hasNext()) {
this.path.add(frameIt.next().get());
}
this.setFrame(otherKFI.frame());
this.period = otherKFI.period;
this.interpolationTm = otherKFI.interpolationTm;
this.interpolationSpd = otherKFI.interpolationSpd;
this.interpolationStrt = otherKFI.interpolationStrt;
this.lpInterpolation = otherKFI.lpInterpolation;
this.pathIsValid = otherKFI.pathIsValid;
this.valuesAreValid = otherKFI.valuesAreValid;
this.currentFrmValid = otherKFI.currentFrmValid;
this.keyFrameList = new ArrayList<KeyFrame>();
for (KeyFrame element : otherKFI.keyFrameList) {
KeyFrame kf = (KeyFrame) element.get();
this.keyFrameList.add(kf);
}
this.currentFrame0 = keyFrameList.listIterator(otherKFI.currentFrame0.nextIndex());
this.currentFrame1 = keyFrameList.listIterator(otherKFI.currentFrame1.nextIndex());
this.currentFrame2 = keyFrameList.listIterator(otherKFI.currentFrame2.nextIndex());
this.currentFrame3 = keyFrameList.listIterator(otherKFI.currentFrame3.nextIndex());
this.interpolationTimerTask =
new TimingTask() {
public void execute() {
update();
}
};
gScene.registerTimingTask(interpolationTimerTask);
this.invalidateValues();
}
@Override
void computeTangent(KeyFrame prev, KeyFrame next) {
tgPVec = Vec.multiply(Vec.subtract(next.position(), prev.position()), 0.5f);
}