createClipsFromMorphTargetSequences static method

List<AnimationClip> createClipsFromMorphTargetSequences(List<MorphTarget> morphTargets, int fps, [ bool noLoop = false ])

Returns a new AnimationClip from the passed morph targets array of a geometry, taking a name and the number of frames per second.

/ Note: The fps parameter is required, but the animation speed can be overridden in an AnimationAction via animationAction.setDuration.

Implementation

//// Note: The fps parameter is required, but the animation speed can be
	/// overridden in an `AnimationAction` via [animationAction.setDuration].
static List<AnimationClip> createClipsFromMorphTargetSequences(List<MorphTarget> morphTargets, int fps, [bool noLoop = false]) {
  final Map<String,List<MorphTarget>> animationToMorphTargets = {};
  //TODO
  // tested with https://regex101.com/ on trick sequences
  // such flamingo_flyA_003, flamingo_run1_003, crdeath0059
  RegExp pattern = RegExp(r"^([\w-]*?)([\d]+)$");

  // sort morph target names into animation groups based
  // patterns like Walk_001, Walk_002, Run_001, Run_002
  for (final morphTarget in morphTargets) {
    final parts = pattern.allMatches(morphTarget.name);
    if(parts.isNotEmpty){
      final name = parts.first.group(1)!;
      List<MorphTarget>? animationMorphTargets = animationToMorphTargets[name];

      if (animationMorphTargets == null) {
        animationToMorphTargets[name] = animationMorphTargets = [];
      }

      animationMorphTargets.add(morphTarget);
    }
  }

  List<AnimationClip> clips = [];

  // for ( String name in animationToMorphTargets ) {
  animationToMorphTargets.forEach((name, value) {
    clips.add(AnimationClip.createFromMorphTargetSequence(name, value, fps, noLoop));
  });

  return clips;
}