Beispiel #1
0
EntityItemPointer EntityTree::addEntity(const EntityItemID& entityID, const EntityItemProperties& properties) {
    EntityItemPointer result = NULL;

    if (getIsClient()) {
        // if our Node isn't allowed to create entities in this domain, don't try.
        auto nodeList = DependencyManager::get<NodeList>();
        if (nodeList && !nodeList->getThisNodeCanRez()) {
            return NULL;
        }
    }

    bool recordCreationTime = false;
    if (properties.getCreated() == UNKNOWN_CREATED_TIME) {
        // the entity's creation time was not specified in properties, which means this is a NEW entity
        // and we must record its creation time
        recordCreationTime = true;
    }

    // You should not call this on existing entities that are already part of the tree! Call updateEntity()
    EntityTreeElementPointer containingElement = getContainingElement(entityID);
    if (containingElement) {
        qCDebug(entities) << "UNEXPECTED!!! ----- don't call addEntity() on existing entity items. entityID=" << entityID
                          << "containingElement=" << containingElement.get();
        return result;
    }

    // construct the instance of the entity
    EntityTypes::EntityType type = properties.getType();
    result = EntityTypes::constructEntityItem(type, entityID, properties);

    if (result) {
        if (recordCreationTime) {
            result->recordCreationTime();
        }
        // Recurse the tree and store the entity in the correct tree element
        AddEntityOperator theOperator(getThisPointer(), result);
        recurseTreeWithOperator(&theOperator);

        postAddEntity(result);
    }
    return result;
}