////  EntityTypes.cpp//  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// #include <QtCore/QObject> #include <ByteCountCoding.h>#include <Octree.h> #include "EntityItem.h"#include "EntityItemProperties.h"#include "EntityTypes.h" #include "BoxEntityItem.h"#include "LightEntityItem.h"#include "ModelEntityItem.h"#include "ParticleEffectEntityItem.h"#include "SphereEntityItem.h"#include "TextEntityItem.h"#include "WebEntityItem.h"#include "ZoneEntityItem.h"#include "LineEntityItem.h"#include "PolyVoxEntityItem.h" QMap<EntityTypes::EntityType, QString> EntityTypes::_typeToNameMap;QMap<QString, EntityTypes::EntityType> EntityTypes::_nameToTypeMap;EntityTypeFactory EntityTypes::_factories[EntityTypes::LAST + 1];bool EntityTypes::_factoriesInitialized = false; const QString ENTITY_TYPE_NAME_UNKNOWN = "Unknown"; // Register Entity the default implementations of entity types here...REGISTER_ENTITY_TYPE(Model)REGISTER_ENTITY_TYPE(Box)REGISTER_ENTITY_TYPE(Web)REGISTER_ENTITY_TYPE(Sphere)REGISTER_ENTITY_TYPE(Light)REGISTER_ENTITY_TYPE(Text)REGISTER_ENTITY_TYPE(ParticleEffect)REGISTER_ENTITY_TYPE(Zone)REGISTER_ENTITY_TYPE(Line)REGISTER_ENTITY_TYPE(PolyVox) const QString& EntityTypes::getEntityTypeName(EntityType entityType) {    QMap<EntityType, QString>::iterator matchedTypeName = _typeToNameMap.find(entityType);    if (matchedTypeName != _typeToNameMap.end()) {        return matchedTypeName.value();    }    return ENTITY_TYPE_NAME_UNKNOWN;} EntityTypes::EntityType EntityTypes::getEntityTypeFromName(const QString& name) {    QMap<QString, EntityTypes::EntityType>::iterator matchedTypeName = _nameToTypeMap.find(name);    if (matchedTypeName != _nameToTypeMap.end()) {        return matchedTypeName.value();    }    return Unknown;} bool EntityTypes::registerEntityType(EntityType entityType, const char* name, EntityTypeFactory factoryMethod) {    _typeToNameMap[entityType] = name;    _nameToTypeMap[name] = entityType;    if (!_factoriesInitialized) {        memset(&_factories,0,sizeof(_factories));        _factoriesInitialized = true;    }    if (entityType >= 0 && entityType <= LAST) {        _factories[entityType] = factoryMethod;        return true;    }    return false;} EntityItemPointer EntityTypes::constructEntityItem(EntityType entityType, const EntityItemID& entityID,                                                    const EntityItemProperties& properties) {    EntityItemPointer newEntityItem = NULL;    EntityTypeFactory factory = NULL;    if (entityType >= 0 && entityType <= LAST) {        factory = _factories[entityType];    }    if (factory) {        EntityItemProperties mutableProperties = properties;        mutableProperties.markAllChanged();        newEntityItem = factory(entityID, mutableProperties);    }    return newEntityItem;} EntityItemPointer EntityTypes::constructEntityItem(const unsigned char* data, int bytesToRead,            ReadBitstreamToTreeParams& args) {     if (args.bitstreamVersion < VERSION_ENTITIES_SUPPORT_SPLIT_MTU) {        EntityItemID tempEntityID;        EntityItemProperties tempProperties;        return constructEntityItem(Model, tempEntityID, tempProperties);    }     // Header bytes    //    object ID [16 bytes]    //    ByteCountCoded(type code) [~1 byte]    //    last edited [8 bytes]    //    ByteCountCoded(last_edited to last_updated delta) [~1-8 bytes]    //    PropertyFlags<>( everything ) [1-2 bytes]    // ~27-35 bytes...    const int MINIMUM_HEADER_BYTES = 27;     int bytesRead = 0;    if (bytesToRead >= MINIMUM_HEADER_BYTES) {        int originalLength = bytesToRead;        QByteArray originalDataBuffer((const char*)data, originalLength);         // id        QByteArray encodedID = originalDataBuffer.mid(bytesRead, NUM_BYTES_RFC4122_UUID); // maximum possible size        QUuid actualID = QUuid::fromRfc4122(encodedID);        bytesRead += encodedID.size();         // type        QByteArray encodedType = originalDataBuffer.mid(bytesRead); // maximum possible size        ByteCountCoded<quint32> typeCoder = encodedType;        encodedType = typeCoder; // determine true length        bytesRead += encodedType.size();        quint32 type = typeCoder;        EntityTypes::EntityType entityType = (EntityTypes::EntityType)type;                EntityItemID tempEntityID(actualID);        EntityItemProperties tempProperties;        return constructEntityItem(entityType, tempEntityID, tempProperties);    }        return NULL;}