clone static method

dynamic clone(dynamic source)

Implementation

static clone(source) {
  var sourceLookup = new Map();
  var cloneLookup = new Map();

  var clone = source.clone();

  parallelTraverse(source, clone, (sourceNode, clonedNode) {
    // sourceLookup.set( clonedNode, sourceNode );
    // cloneLookup.set( sourceNode, clonedNode );

    sourceLookup[clonedNode] = sourceNode;
    cloneLookup[sourceNode] = clonedNode;
  });

  clone.traverse((node) {
    if (node==null|| !(node is  SkinnedMesh)) //|| !node.runtimeType.toString().contains("SkinnedMesh"))
      return;//!node.runtimeType.toString().contains("SkinnedMesh")) return; // GL

    var clonedMesh = node;
    var sourceMesh = sourceLookup[node];
    var sourceBones = sourceMesh.skeleton.bones;

    clonedMesh.skeleton = sourceMesh.skeleton.clone();
    if (sourceMesh!=null&&clonedMesh!=null&&sourceMesh.bindMatrix!=null&&clonedMesh.bindMatrix!=null) { //GL
      clonedMesh.bindMatrix!.copy(sourceMesh!.bindMatrix);

      clonedMesh.skeleton!.bones = List<Bone>.from(sourceBones.map((bone) {
        return cloneLookup[bone];
      }).toList());

      clonedMesh.bind(clonedMesh.skeleton!, clonedMesh.bindMatrix!);
    }
  });

  return clone;
}