addAnimationByName method
Adds an animation to be played delay seconds after the current or last queued animation for a track. If the track is empty, it is equivalent to calling setAnimation. @param delay Seconds to begin this animation after the start of the previous animation. May be <= 0 to use the animation duration of the previous track minus any mix duration plus the negative delay.
@return A track entry to allow further customization of animation playback. References to the track entry must not be kept after AnimationState.Dispose
Implementation
TrackEntry addAnimationByName(int trackIndex, String animationName, bool loop, double delay) {
final animation = animationName.toNativeUtf8(allocator: _allocator);
final entry = _bindings.spine_animation_state_add_animation_by_name(
_state, trackIndex, animation.cast(), loop ? -1 : 0, delay);
_allocator.free(animation);
if (entry.address == nullptr.address) throw Exception("Couldn't add animation $animationName");
return TrackEntry._(entry, this);
}