overte/libraries/entities/src/EntityTree.h

204 lines
8.9 KiB
C++

//
// EntityTree.h
// libraries/entities/src
//
// Created by Brad Hefta-Gaub on 12/4/13.
// Copyright 2013 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_EntityTree_h
#define hifi_EntityTree_h
#include <QSet>
#include <Octree.h>
#include "EntityTreeElement.h"
#include "DeleteEntityOperator.h"
class Model;
class EntitySimulation;
class NewlyCreatedEntityHook {
public:
virtual void entityCreated(const EntityItem& newEntity, const SharedNodePointer& senderNode) = 0;
};
class EntityItemFBXService {
public:
virtual const FBXGeometry* getGeometryForEntity(const EntityItem* entityItem) = 0;
virtual const Model* getModelForEntityItem(const EntityItem* entityItem) = 0;
virtual const FBXGeometry* getCollisionGeometryForEntity(const EntityItem* entityItem) = 0;
};
class SendEntitiesOperationArgs {
public:
glm::vec3 root;
EntityTree* localTree;
EntityEditPacketSender* packetSender;
QVector<EntityItemID>* newEntityIDs;
};
class EntityTree : public Octree {
Q_OBJECT
public:
EntityTree(bool shouldReaverage = false);
virtual ~EntityTree();
/// Implements our type specific root element factory
virtual EntityTreeElement* createNewElement(unsigned char * octalCode = NULL);
/// Type safe version of getRoot()
EntityTreeElement* getRoot() { return static_cast<EntityTreeElement*>(_rootElement); }
virtual void eraseAllOctreeElements(bool createNewRoot = true);
// These methods will allow the OctreeServer to send your tree inbound edit packets of your
// own definition. Implement these to allow your octree based server to support editing
virtual bool getWantSVOfileVersions() const { return true; }
virtual PacketType expectedDataPacketType() const { return PacketTypeEntityData; }
virtual bool canProcessVersion(PacketVersion thisVersion) const
{ return thisVersion >= VERSION_ENTITIES_SUPPORT_SPLIT_MTU; } // we support all versions with split mtu
virtual bool handlesEditPacketType(PacketType packetType) const;
virtual int processEditPacketData(PacketType packetType, const unsigned char* packetData, int packetLength,
const unsigned char* editData, int maxLength, const SharedNodePointer& senderNode);
virtual bool rootElementHasData() const { return true; }
// the root at least needs to store the number of entities in the packet/buffer
virtual int minimumRequiredRootDataBytes() const { return sizeof(uint16_t); }
virtual bool suppressEmptySubtrees() const { return false; }
virtual void releaseSceneEncodeData(OctreeElementExtraEncodeData* extraEncodeData) const;
virtual bool mustIncludeAllChildData() const { return false; }
virtual bool versionHasSVOfileBreaks(PacketVersion thisVersion) const
{ return thisVersion >= VERSION_ENTITIES_HAS_FILE_BREAKS; }
virtual void update();
// The newer API...
void postAddEntity(EntityItem* entityItem);
EntityItem* addEntity(const EntityItemID& entityID, const EntityItemProperties& properties);
// use this method if you only know the entityID
bool updateEntity(const EntityItemID& entityID, const EntityItemProperties& properties, bool allowLockChange);
// use this method if you have a pointer to the entity (avoid an extra entity lookup)
bool updateEntity(EntityItem* entity, const EntityItemProperties& properties, bool allowLockChange);
void deleteEntity(const EntityItemID& entityID, bool force = false, bool ignoreWarnings = false);
void deleteEntities(QSet<EntityItemID> entityIDs, bool force = false, bool ignoreWarnings = false);
/// \param position point of query in world-frame (meters)
/// \param targetRadius radius of query (meters)
const EntityItem* findClosestEntity(glm::vec3 position, float targetRadius);
EntityItem* findEntityByID(const QUuid& id);
EntityItem* findEntityByEntityItemID(const EntityItemID& entityID);
EntityItemID assignEntityID(const EntityItemID& entityItemID); /// Assigns a known ID for a creator token ID
/// finds all entities that touch a sphere
/// \param center the center of the sphere in world-frame (meters)
/// \param radius the radius of the sphere in world-frame (meters)
/// \param foundEntities[out] vector of const EntityItem*
/// \remark Side effect: any initial contents in foundEntities will be lost
void findEntities(const glm::vec3& center, float radius, QVector<const EntityItem*>& foundEntities);
/// finds all entities that touch a cube
/// \param cube the query cube in world-frame (meters)
/// \param foundEntities[out] vector of non-const EntityItem*
/// \remark Side effect: any initial contents in entities will be lost
void findEntities(const AACube& cube, QVector<EntityItem*>& foundEntities);
/// finds all entities that touch a box
/// \param box the query box in world-frame (meters)
/// \param foundEntities[out] vector of non-const EntityItem*
/// \remark Side effect: any initial contents in entities will be lost
void findEntities(const AABox& box, QVector<EntityItem*>& foundEntities);
void addNewlyCreatedHook(NewlyCreatedEntityHook* hook);
void removeNewlyCreatedHook(NewlyCreatedEntityHook* hook);
bool hasAnyDeletedEntities() const { return _recentlyDeletedEntityItemIDs.size() > 0; }
bool hasEntitiesDeletedSince(quint64 sinceTime);
bool encodeEntitiesDeletedSince(OCTREE_PACKET_SEQUENCE sequenceNumber, quint64& sinceTime,
unsigned char* packetData, size_t maxLength, size_t& outputLength);
void forgetEntitiesDeletedBefore(quint64 sinceTime);
int processEraseMessage(const QByteArray& dataByteArray, const SharedNodePointer& sourceNode);
int processEraseMessageDetails(const QByteArray& dataByteArray, const SharedNodePointer& sourceNode);
void handleAddEntityResponse(const QByteArray& packet);
EntityItemFBXService* getFBXService() const { return _fbxService; }
void setFBXService(EntityItemFBXService* service) { _fbxService = service; }
const FBXGeometry* getGeometryForEntity(const EntityItem* entityItem) {
return _fbxService ? _fbxService->getGeometryForEntity(entityItem) : NULL;
}
const Model* getModelForEntityItem(const EntityItem* entityItem) {
return _fbxService ? _fbxService->getModelForEntityItem(entityItem) : NULL;
}
EntityTreeElement* getContainingElement(const EntityItemID& entityItemID) /*const*/;
void setContainingElement(const EntityItemID& entityItemID, EntityTreeElement* element);
void resetContainingElement(const EntityItemID& entityItemID, EntityTreeElement* element);
void debugDumpMap();
virtual void dumpTree();
virtual void pruneTree();
QVector<EntityItemID> sendEntities(EntityEditPacketSender* packetSender, EntityTree* localTree, float x, float y, float z);
void entityChanged(EntityItem* entity);
void emitEntityScriptChanging(const EntityItemID& entityItemID);
void setSimulation(EntitySimulation* simulation);
bool wantEditLogging() const { return _wantEditLogging; }
void setWantEditLogging(bool value) { _wantEditLogging = value; }
bool writeToMap(QVariantMap& entityDescription, OctreeElement* element);
bool readFromMap(QVariantMap& entityDescription);
signals:
void deletingEntity(const EntityItemID& entityID);
void addingEntity(const EntityItemID& entityID);
void entityScriptChanging(const EntityItemID& entityItemID);
void changingEntityID(const EntityItemID& oldEntityID, const EntityItemID& newEntityID);
void clearingEntities();
private:
void processRemovedEntities(const DeleteEntityOperator& theOperator);
bool updateEntityWithElement(EntityItem* entity, const EntityItemProperties& properties,
EntityTreeElement* containingElement, bool allowLockChange);
static bool findNearPointOperation(OctreeElement* element, void* extraData);
static bool findInSphereOperation(OctreeElement* element, void* extraData);
static bool findInCubeOperation(OctreeElement* element, void* extraData);
static bool findInBoxOperation(OctreeElement* element, void* extraData);
static bool sendEntitiesOperation(OctreeElement* element, void* extraData);
void notifyNewlyCreatedEntity(const EntityItem& newEntity, const SharedNodePointer& senderNode);
QReadWriteLock _newlyCreatedHooksLock;
QVector<NewlyCreatedEntityHook*> _newlyCreatedHooks;
QReadWriteLock _recentlyDeletedEntitiesLock;
QMultiMap<quint64, QUuid> _recentlyDeletedEntityItemIDs;
EntityItemFBXService* _fbxService;
QHash<EntityItemID, EntityTreeElement*> _entityToElementMap;
QHash<EntityItemID, EntityItemID> _changedEntityIDs;
EntitySimulation* _simulation;
bool _wantEditLogging = false;
};
#endif // hifi_EntityTree_h