C++ Component::GetAttributes方法代码示例

Node* Node::CloneRecursive(Node* parent, SceneResolver& resolver, CreateMode mode)
{
    // Create clone node
    Node* cloneNode = parent->CreateChild(0, (mode == REPLICATED && id_ < FIRST_LOCAL_ID) ? REPLICATED : LOCAL);
    resolver.AddNode(id_, cloneNode);

    // Copy attributes
    const Vector<AttributeInfo>* attributes = GetAttributes();
    for (unsigned j = 0; j < attributes->Size(); ++j)
    {
        const AttributeInfo& attr = attributes->At(j);
        // Do not copy network-only attributes, as they may have unintended side effects
        if (attr.mode_ & AM_FILE)
            cloneNode->SetAttribute(j, GetAttribute(j));
    }

    // Clone components
    for (Vector<SharedPtr<Component> >::ConstIterator i = components_.Begin(); i != components_.End(); ++i)
    {
        Component* component = *i;
        Component* cloneComponent = cloneNode->SafeCreateComponent(component->GetTypeName(), component->GetType(), 
            (mode == REPLICATED && component->GetID() < FIRST_LOCAL_ID) ? REPLICATED : LOCAL, 0);
        if (!cloneComponent)
        {
            LOGERROR("Could not clone component " + component->GetTypeName());
            continue;
        }
        resolver.AddComponent(component->GetID(), cloneComponent);

        const Vector<AttributeInfo>* compAttributes = component->GetAttributes();
        if (compAttributes)
        {
            for (unsigned j = 0; j < compAttributes->Size(); ++j)
            {
                const AttributeInfo& attr = compAttributes->At(j);
                if (attr.mode_ & AM_FILE)
                    cloneComponent->SetAttribute(j, component->GetAttribute(j));
            }
        }
    }

    // Clone child nodes recursively
    for (Vector<SharedPtr<Node> >::ConstIterator i = children_.Begin(); i != children_.End(); ++i)
    {
        Node* node = *i;
        node->CloneRecursive(cloneNode, resolver, mode);
    }

    return cloneNode;
}

Component* Node::CloneComponent(Component* component, CreateMode mode, unsigned id)
{
    if (!component)
    {
        LOGERROR("Null source component given for CloneComponent");
        return 0;
    }

    Component* cloneComponent = SafeCreateComponent(component->GetTypeName(), component->GetType(), mode, 0);
    if (!cloneComponent)
    {
        LOGERROR("Could not clone component " + component->GetTypeName());
        return 0;
    }

    const Vector<AttributeInfo>* compAttributes = component->GetAttributes();
    const Vector<AttributeInfo>* cloneAttributes = cloneComponent->GetAttributes();
    
    if (compAttributes)
    {
        for (unsigned i = 0; i < compAttributes->Size() && i < cloneAttributes->Size(); ++i)
        {
            const AttributeInfo& attr = compAttributes->At(i);
            const AttributeInfo& cloneAttr = cloneAttributes->At(i);
            if (attr.mode_ & AM_FILE)
            {
                Variant value;
                component->OnGetAttribute(attr, value);
                // Note: when eg. a ScriptInstance component is cloned, its script object attributes are unique and therefore we
                // can not simply refer to the source component's AttributeInfo
                cloneComponent->OnSetAttribute(cloneAttr, value);
            }
        }
        cloneComponent->ApplyAttributes();
    }
    
    return cloneComponent;
}

void SceneResolver::Resolve()
{
    // Nodes do not have component or node ID attributes, so only have to go through components
    ea::hash_set<StringHash> noIDAttributes;
    for (auto i = components_.begin(); i !=
        components_.end(); ++i)
    {
        Component* component = i->second;
        if (!component || noIDAttributes.contains(component->GetType()))
            continue;

        bool hasIDAttributes = false;
        const ea::vector<AttributeInfo>* attributes = component->GetAttributes();
        if (!attributes)
        {
            noIDAttributes.insert(component->GetType());
            continue;
        }

        for (unsigned j = 0; j < attributes->size(); ++j)
        {
            const AttributeInfo& info = attributes->at(j);
            if (info.mode_ & AM_NODEID)
            {
                hasIDAttributes = true;
                unsigned oldNodeID = component->GetAttribute(j).GetUInt();

                if (oldNodeID)
                {
                    auto k = nodes_.find(oldNodeID);

                    if (k != nodes_.end() && k->second)
                    {
                        unsigned newNodeID = k->second->GetID();
                        component->SetAttribute(j, Variant(newNodeID));
                    }
                    else
                        URHO3D_LOGWARNING("Could not resolve node ID " + ea::to_string(oldNodeID));
                }
            }
            else if (info.mode_ & AM_COMPONENTID)
            {
                hasIDAttributes = true;
                unsigned oldComponentID = component->GetAttribute(j).GetUInt();

                if (oldComponentID)
                {
                    auto k = components_.find(
                        oldComponentID);

                    if (k != components_.end() && k->second)
                    {
                        unsigned newComponentID = k->second->GetID();
                        component->SetAttribute(j, Variant(newComponentID));
                    }
                    else
                        URHO3D_LOGWARNING("Could not resolve component ID " + ea::to_string(oldComponentID));
                }
            }
            else if (info.mode_ & AM_NODEIDVECTOR)
            {
                hasIDAttributes = true;
                Variant attrValue = component->GetAttribute(j);
                const VariantVector& oldNodeIDs = attrValue.GetVariantVector();

                if (oldNodeIDs.size())
                {
                    // The first index stores the number of IDs redundantly. This is for editing
                    unsigned numIDs = oldNodeIDs[0].GetUInt();
                    VariantVector newIDs;
                    newIDs.push_back(numIDs);

                    for (unsigned k = 1; k < oldNodeIDs.size(); ++k)
                    {
                        unsigned oldNodeID = oldNodeIDs[k].GetUInt();
                        auto l = nodes_.find(oldNodeID);

                        if (l != nodes_.end() && l->second)
                            newIDs.push_back(l->second->GetID());
                        else
                        {
                            // If node was not found, retain number of elements, just store ID 0
                            newIDs.push_back(0);
                            URHO3D_LOGWARNING("Could not resolve node ID " + ea::to_string(oldNodeID));
                        }
                    }

                    component->SetAttribute(j, newIDs);
                }
            }
        }

        // If component type had no ID attributes, cache this fact for optimization
        if (!hasIDAttributes)
            noIDAttributes.insert(component->GetType());
    }

    // Attributes have been resolved, so no need to remember the nodes after this
    Reset();
}

void SceneResolver::Resolve()
{
    // Nodes do not have component or node ID attributes, so only have to go through components
    HashSet<StringHash> noIDAttributes;
    for (HashMap<unsigned, WeakPtr<Component> >::ConstIterator i = components_.Begin(); i != components_.End(); ++i)
    {
        Component* component = i->second_;
        if (!component || noIDAttributes.Contains(component->GetType()))
            continue;

        bool hasIDAttributes = false;
        const Vector<AttributeInfo>* attributes = component->GetAttributes();
        if (!attributes)
        {
            noIDAttributes.Insert(component->GetType());
            continue;
        }

        for (unsigned j = 0; j < attributes->Size(); ++j)
        {
            const AttributeInfo& info = attributes->At(j);
            if (info.mode_ & AM_NODEID)
            {
                hasIDAttributes = true;
                unsigned oldNodeID = component->GetAttribute(j).GetUInt();

                if (oldNodeID)
                {
                    HashMap<unsigned, WeakPtr<Node> >::ConstIterator k = nodes_.Find(oldNodeID);

                    if (k != nodes_.End() && k->second_)
                    {
                        unsigned newNodeID = k->second_->GetID();
                        component->SetAttribute(j, Variant(newNodeID));
                    }
                    else
                        URHO3D_LOGWARNING("Could not resolve node ID " + String(oldNodeID));
                }
            }
            else if (info.mode_ & AM_COMPONENTID)
            {
                hasIDAttributes = true;
                unsigned oldComponentID = component->GetAttribute(j).GetUInt();

                if (oldComponentID)
                {
                    HashMap<unsigned, WeakPtr<Component> >::ConstIterator k = components_.Find(oldComponentID);

                    if (k != components_.End() && k->second_)
                    {
                        unsigned newComponentID = k->second_->GetID();
                        component->SetAttribute(j, Variant(newComponentID));
                    }
                    else
                        URHO3D_LOGWARNING("Could not resolve component ID " + String(oldComponentID));
                }
            }
            else if (info.mode_ & AM_NODEIDVECTOR)
            {
                hasIDAttributes = true;
                const VariantVector& oldNodeIDs = component->GetAttribute(j).GetVariantVector();

                if (oldNodeIDs.Size())
                {
                    // The first index stores the number of IDs redundantly. This is for editing
                    unsigned numIDs = oldNodeIDs[0].GetUInt();
                    VariantVector newIDs;
                    newIDs.Push(numIDs);

                    for (unsigned k = 1; k < oldNodeIDs.Size(); ++k)
                    {
                        unsigned oldNodeID = oldNodeIDs[k].GetUInt();
                        HashMap<unsigned, WeakPtr<Node> >::ConstIterator l = nodes_.Find(oldNodeID);

                        if (l != nodes_.End() && l->second_)
                            newIDs.Push(l->second_->GetID());
                        else
                        {
                            // If node was not found, retain number of elements, just store ID 0
                            newIDs.Push(0);
                            URHO3D_LOGWARNING("Could not resolve node ID " + String(oldNodeID));
                        }
                    }

                    component->SetAttribute(j, newIDs);
                }
            }
        }

        // If component type had no ID attributes, cache this fact for optimization
        if (!hasIDAttributes)
            noIDAttributes.Insert(component->GetType());
    }

    // Attributes have been resolved, so no need to remember the nodes after this
    Reset();
}