void Animation::add_keyframe(const Time::TimeDelta &t, const RefPtr<const KeyFrame> &kf, float ss, float es)
{
+ if(keyframes.empty() && t!=Time::zero)
+ throw invalid_argument("Animation::add_keyframe");
if(!keyframes.empty() && t<keyframes.back().time)
throw invalid_argument("Animation::add_keyframe");
event_iter(animation->events.begin()),
x(0),
end(false)
-{ }
+{
+ if(iter==animation->keyframes.end())
+ throw invalid_argument("Animation::Iterator::Iterator");
+}
Animation::Iterator &Animation::Iterator::operator+=(const Time::TimeDelta &t)
{