MovingEntitiesOperator.h

//
//  MovingEntitiesOperator.h
//  libraries/entities/src
//
//  Created by Brad Hefta-Gaub on 8/11/2014.
//  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_MovingEntitiesOperator_h
#define hifi_MovingEntitiesOperator_h
 
#include <QSet>
 
#include "EntityItem.h"
 
class EntityToMoveDetails {
public:
    EntityItemPointer entity;
    AACube oldCube; // meters
    AACube newCube; // meters
    AABox newCubeClamped; // meters
    EntityTreeElementPointer oldContainingElement;
    AACube oldContainingElementCube; // meters
    bool oldFound;
    bool newFound;
};
 
inline uint qHash(const EntityToMoveDetails& a, uint seed) {
    return qHash(a.entity->getEntityItemID(), seed);
}
 
inline bool operator==(const EntityToMoveDetails& a, const EntityToMoveDetails& b) {
    return a.entity->getEntityItemID() == b.entity->getEntityItemID();
}
 
class MovingEntitiesOperator : public RecurseOctreeOperator {
public:
    MovingEntitiesOperator();
    ~MovingEntitiesOperator();
 
    void addEntityToMoveList(EntityItemPointer entity, const AACube& newCube);
    virtual bool preRecursion(const OctreeElementPointer& element) override;
    virtual bool postRecursion(const OctreeElementPointer& element) override;
    virtual OctreeElementPointer possiblyCreateChildAt(const OctreeElementPointer& element, int childIndex) override;
    bool hasMovingEntities() const { return _entitiesToMove.size() > 0; }
    void reset();
private:
    bool shouldRecurseSubTree(const OctreeElementPointer& element);
 
    QSet<EntityToMoveDetails> _entitiesToMove;
    int _foundOldCount { 0 };
    int _foundNewCount { 0 };
    int _lookingCount { 0 };
    bool _wantDebug { false };
};
 
#endif // hifi_MovingEntitiesOperator_h