/// <inheritdoc/>
protected override void OnEntityRemoved(Entity entity, TransformationComponent transformationComponent)
{
var entityToRemove = new List <Entity>();
foreach (var child in transformationComponent.Children)
{
entityToRemove.Add(child.Entity);
}
foreach (var childEntity in entityToRemove)
{
InternalRemoveEntity(childEntity, false);
}
// If sub entity is removed but its parent is still there, it needs to be detached.
// Note that this behavior is still not totally fixed yet, it might change.
if (transformationComponent.Parent != null && EntitySystem.Contains(transformationComponent.Parent.Entity))
{
transformationComponent.Parent = null;
}
rootEntities.Remove(entity);
((TrackingCollection <TransformationComponent>)transformationComponent.Children).CollectionChanged -= Children_CollectionChanged;
}