Node* Node::Clone(CreateMode mode)
{
// The scene itself can not be cloned
if (this == scene_ || !parent_)
{
LOGERROR("Can not clone node without a parent");
return 0;
}
PROFILE(CloneNode);
SceneResolver resolver;
Node* clone = CloneRecursive(parent_, resolver, mode);
resolver.Resolve();
clone->ApplyAttributes();
return clone;
}
bool Node::Load(Deserializer& source, bool setInstanceDefault)
{
SceneResolver resolver;
// Read own ID. Will not be applied, only stored for resolving possible references
unsigned nodeID = source.ReadInt();
resolver.AddNode(nodeID, this);
// Read attributes, components and child nodes
bool success = Load(source, resolver);
if (success)
{
resolver.Resolve();
ApplyAttributes();
}
return success;
}
bool Node::LoadXML(const XMLElement& source)
{
SceneResolver resolver;
// Read own ID. Will not be applied, only stored for resolving possible references
unsigned nodeID = source.GetInt("id");
resolver.AddNode(nodeID, this);
// Read attributes, components and child nodes
bool success = LoadXML(source, resolver);
if (success)
{
resolver.Resolve();
ApplyAttributes();
}
return success;
}
bool Node::LoadXML(const XMLElement& source, SceneResolver& resolver, bool readChildren, bool rewriteIDs, CreateMode mode)
{
// Remove all children and components first in case this is not a fresh load
RemoveAllChildren();
RemoveAllComponents();
if (!Serializable::LoadXML(source))
return false;
XMLElement compElem = source.GetChild("component");
while (compElem)
{
String typeName = compElem.GetAttribute("type");
unsigned compID = compElem.GetInt("id");
Component* newComponent = CreateComponent(typeName,
(mode == REPLICATED && compID < FIRST_LOCAL_ID) ? REPLICATED : LOCAL, rewriteIDs ? 0 : compID);
if (newComponent)
{
resolver.AddComponent(compID, newComponent);
if (!newComponent->LoadXML(compElem))
return false;
}
compElem = compElem.GetNext("component");
}
if (!readChildren)
return true;
XMLElement childElem = source.GetChild("node");
while (childElem)
{
unsigned nodeID = childElem.GetInt("id");
Node* newNode = CreateChild(rewriteIDs ? 0 : nodeID, (mode == REPLICATED && nodeID < FIRST_LOCAL_ID) ? REPLICATED :
LOCAL);
resolver.AddNode(nodeID, newNode);
if (!newNode->LoadXML(childElem, resolver, readChildren, rewriteIDs, mode))
return false;
childElem = childElem.GetNext("node");
}
return true;
}
bool Node::Load(Deserializer& source, SceneResolver& resolver, bool readChildren, bool rewriteIDs, CreateMode mode)
{
// Remove all children and components first in case this is not a fresh load
RemoveAllChildren();
RemoveAllComponents();
// ID has been read at the parent level
if (!Animatable::Load(source))
return false;
unsigned numComponents = source.ReadVLE();
for (unsigned i = 0; i < numComponents; ++i)
{
VectorBuffer compBuffer(source, source.ReadVLE());
StringHash compType = compBuffer.ReadStringHash();
unsigned compID = compBuffer.ReadUInt();
Component* newComponent = SafeCreateComponent(String::EMPTY, compType,
(mode == REPLICATED && compID < FIRST_LOCAL_ID) ? REPLICATED : LOCAL, rewriteIDs ? 0 : compID);
if (newComponent)
{
resolver.AddComponent(compID, newComponent);
// Do not abort if component fails to load, as the component buffer is nested and we can skip to the next
newComponent->Load(compBuffer);
}
}
if (!readChildren)
return true;
unsigned numChildren = source.ReadVLE();
for (unsigned i = 0; i < numChildren; ++i)
{
unsigned nodeID = source.ReadUInt();
Node* newNode = CreateChild(rewriteIDs ? 0 : nodeID, (mode == REPLICATED && nodeID < FIRST_LOCAL_ID) ? REPLICATED :
LOCAL);
resolver.AddNode(nodeID, newNode);
if (!newNode->Load(source, resolver, readChildren, rewriteIDs, mode))
return false;
}
return true;
}
Node* Scene::InstantiateXML(const XMLElement& source, const Vector3& position, const Quaternion& rotation, CreateMode mode)
{
PROFILE(InstantiateXML);
SceneResolver resolver;
unsigned nodeID = source.GetInt("id");
// Rewrite IDs when instantiating
Node* node = CreateChild(0, mode);
resolver.AddNode(nodeID, node);
if (node->LoadXML(source, resolver, true, true, mode))
{
resolver.Resolve();
node->ApplyAttributes();
node->SetTransform(position, rotation);
return node;
}
else
{
node->Remove();
return 0;
}
}
Node* Scene::Instantiate(Deserializer& source, const Vector3& position, const Quaternion& rotation, CreateMode mode)
{
URHO3D_PROFILE(Instantiate);
SceneResolver resolver;
unsigned nodeID = source.ReadUInt();
// Rewrite IDs when instantiating
Node* node = CreateChild(0, mode);
resolver.AddNode(nodeID, node);
if (node->Load(source, resolver, true, true, mode))
{
resolver.Resolve();
node->ApplyAttributes();
node->SetTransform(position, rotation);
return node;
}
else
{
node->Remove();
return 0;
}
}
