////  EntityNodeData.h//  libraries/entities/src////  Created by Brad Hefta-Gaub on 4/29/14//  Copyright 2014 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_EntityNodeData_h#define hifi_EntityNodeData_h #include <udt/PacketHeaders.h> #include <OctreeQueryNode.h> namespace EntityJSONQueryProperties {    static const QString SERVER_SCRIPTS_PROPERTY = "serverScripts";    static const QString FLAGS_PROPERTY = "flags";    static const QString INCLUDE_ANCESTORS_PROPERTY = "includeAncestors";    static const QString INCLUDE_DESCENDANTS_PROPERTY = "includeDescendants";} class EntityNodeData : public OctreeQueryNode {public:    virtual PacketType getMyPacketType() const override { return PacketType::EntityData; }     quint64 getLastDeletedEntitiesSentAt() const { return _lastDeletedEntitiesSentAt; }    void setLastDeletedEntitiesSentAt(quint64 sentAt) { _lastDeletedEntitiesSentAt = sentAt; }        // these can only be called from the OctreeSendThread for the given Node    void insertSentFilteredEntity(const QUuid& entityID) { _sentFilteredEntities.insert(entityID); }    void removeSentFilteredEntity(const QUuid& entityID) { _sentFilteredEntities.remove(entityID); }    bool sentFilteredEntity(const QUuid& entityID) const { return _sentFilteredEntities.contains(entityID); }    QSet<QUuid> getSentFilteredEntities() { return _sentFilteredEntities; }     // the following flagged extra entity methods can only be called from the OctreeSendThread for the given Node     // inserts the extra entity and returns a boolean indicating wether the extraEntityID was a new addition    bool insertFlaggedExtraEntity(const QUuid& filteredEntityID, const QUuid& extraEntityID);        bool isEntityFlaggedAsExtra(const QUuid& entityID) const;    void resetFlaggedExtraEntities() { _previousFlaggedExtraEntities = _flaggedExtraEntities; _flaggedExtraEntities.clear(); } private:    quint64 _lastDeletedEntitiesSentAt { usecTimestampNow() };    QSet<QUuid> _sentFilteredEntities;    QHash<QUuid, QSet<QUuid>> _flaggedExtraEntities;    QHash<QUuid, QSet<QUuid>> _previousFlaggedExtraEntities;}; #endif // hifi_EntityNodeData_h