updateWorldTransform method Null safety

  1. @mustCallSuper
void updateWorldTransform()
@mustCallSuper, inherited

Implementation

@mustCallSuper
void updateWorldTransform() {
  _renderOpacity = opacity;
  if (parent is WorldTransformComponent) {
    var parentNode = parent as WorldTransformComponent;
    _renderOpacity *= parentNode.childOpacity;
    Mat2D.multiply(worldTransform, parentNode.worldTransform, transform);
  } else {
    Mat2D.copy(worldTransform, transform);
  }

  if (_constraints.isNotEmpty) {
    for (final constraint in _constraints) {
      constraint.constrain(this);
    }
  }
}