void Node::PrepareNetworkUpdate()
{
// Update dependency nodes list first
dependencyNodes_.Clear();
// Add the parent node, but if it is local, traverse to the first non-local node
if (parent_ && parent_ != scene_)
{
Node* current = parent_;
while (current->id_ >= FIRST_LOCAL_ID)
current = current->parent_;
if (current && current != scene_)
dependencyNodes_.Push(current);
}
// Let the components add their dependencies
for (Vector<SharedPtr<Component> >::ConstIterator i = components_.Begin(); i != components_.End(); ++i)
{
Component* component = *i;
if (component->GetID() < FIRST_LOCAL_ID)
component->GetDependencyNodes(dependencyNodes_);
}
// Then check for node attribute changes
if (!networkState_)
AllocateNetworkState();
const Vector<AttributeInfo>* attributes = networkState_->attributes_;
unsigned numAttributes = attributes->Size();
if (networkState_->currentValues_.Size() != numAttributes)
{
networkState_->currentValues_.Resize(numAttributes);
networkState_->previousValues_.Resize(numAttributes);
// Copy the default attribute values to the previous state as a starting point
for (unsigned i = 0; i < numAttributes; ++i)
networkState_->previousValues_[i] = attributes->At(i).defaultValue_;
}
// Check for attribute changes
for (unsigned i = 0; i < numAttributes; ++i)
{
const AttributeInfo& attr = attributes->At(i);
OnGetAttribute(attr, networkState_->currentValues_[i]);
if (networkState_->currentValues_[i] != networkState_->previousValues_[i])
{
networkState_->previousValues_[i] = networkState_->currentValues_[i];
// Mark the attribute dirty in all replication states that are tracking this node
for (PODVector<ReplicationState*>::Iterator j = networkState_->replicationStates_.Begin(); j !=
networkState_->replicationStates_.End();
++j)
{
NodeReplicationState* nodeState = static_cast<NodeReplicationState*>(*j);
nodeState->dirtyAttributes_.Set(i);
// Add node to the dirty set if not added yet
if (!nodeState->markedDirty_)
{
nodeState->markedDirty_ = true;
nodeState->sceneState_->dirtyNodes_.Insert(id_);
}
}
}
}
// Finally check for user var changes
for (VariantMap::ConstIterator i = vars_.Begin(); i != vars_.End(); ++i)
{
VariantMap::ConstIterator j = networkState_->previousVars_.Find(i->first_);
if (j == networkState_->previousVars_.End() || j->second_ != i->second_)
{
networkState_->previousVars_[i->first_] = i->second_;
// Mark the var dirty in all replication states that are tracking this node
for (PODVector<ReplicationState*>::Iterator j = networkState_->replicationStates_.Begin(); j !=
networkState_->replicationStates_.End(); ++j)
{
NodeReplicationState* nodeState = static_cast<NodeReplicationState*>(*j);
nodeState->dirtyVars_.Insert(i->first_);
if (!nodeState->markedDirty_)
{
nodeState->markedDirty_ = true;
nodeState->sceneState_->dirtyNodes_.Insert(id_);
}
}
}
}
networkUpdate_ = false;
}
