////  SpatialParentFinder.h//  libraries/shared/src/////  Created by Seth Alves on 2015-10-18//  Copyright 2015 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #ifndef hifi_SpatialParentFinder_h#define hifi_SpatialParentFinder_h #include <QUuid> #include "DependencyManager.h" class SpatiallyNestable;using SpatiallyNestableWeakPointer = std::weak_ptr<SpatiallyNestable>;using SpatiallyNestablePointer = std::shared_ptr<SpatiallyNestable>;class SpatialParentTree {public:    virtual SpatiallyNestablePointer findByID(const QUuid& id) const = 0;};class SpatialParentFinder : public Dependency {   // This interface is used to turn a QUuid into a pointer to a "parent" -- something that children can// be spatially relative to.  At this point, this means either an EntityItem or an Avatar.  public:    SpatialParentFinder() { }    virtual ~SpatialParentFinder() { }     virtual SpatiallyNestableWeakPointer find(QUuid parentID, bool& success, SpatialParentTree* entityTree = nullptr) const = 0;}; #endif // hifi_SpatialParentFinder_h