//==============================================================================
void Node::stageForRemoval()
{
if(nullptr == mBodyNode)
{
REPORT_INVALID_NODE(stageForRemoval);
return;
}
// If we are in release mode, and the Node believes it is detached, then we
// can shortcut this procedure.
#ifdef NDEBUG
if(!mAmAttached)
return;
#endif
mBodyNode->incrementVersion();
BodyNode::NodeMap::iterator it = mBodyNode->mNodeMap.find(typeid(*this));
NodeDestructorPtr destructor = getOrCreateDestructor();
BodyNode::NodeDestructorSet& destructors = mBodyNode->mNodeDestructors;
if(mBodyNode->mNodeMap.end() == it)
{
// If the Node was not in the map, then its index should be invalid
assert(INVALID_INDEX == mIndexInBodyNode);
// If the Node was not in the map, then its destructor should not be in the set
assert(destructors.find(destructor) == destructors.end());
return;
}
BodyNode::NodeDestructorSet::iterator destructor_iter = destructors.find(destructor);
// This Node's destructor should be in the set of destructors
assert(destructors.end() != destructor_iter);
std::vector<Node*>& nodes = it->second;
// This Node's index in the vector should be referring to this Node
assert(nodes[mIndexInBodyNode] == this);
nodes.erase(nodes.begin() + mIndexInBodyNode);
destructors.erase(destructor_iter);
// Reset all the Node indices that have been altered
for(std::size_t i=mIndexInBodyNode; i < nodes.size(); ++i)
nodes[i]->mIndexInBodyNode = i;
assert(std::find(nodes.begin(), nodes.end(), this) == nodes.end());
const SkeletonPtr& skel = mBodyNode->getSkeleton();
if(skel)
skel->unregisterNode(this);
mIndexInBodyNode = INVALID_INDEX;
mAmAttached = false;
}
//==============================================================================
void Node::attach()
{
if(nullptr == mBodyNode)
{
REPORT_INVALID_NODE(attach);
return;
}
if(mBodyNode->mNodeMap.end() == mBodyNode->mNodeMap.find(this))
mBodyNode->mNodeMap[this] = getOrCreateDestructor();
}
//==============================================================================
void Node::attach()
{
if(nullptr == mBodyNode)
{
REPORT_INVALID_NODE(attach);
return;
}
// If we are in release mode, and the Node believes it is attached, then we
// can shortcut this procedure
#ifdef NDEBUG
if(mAmAttached)
return;
#endif
using NodeMapPair = std::pair<std::type_index, std::vector<Node*>>;
// Add empty list of Node pointers only when typeid(*this) doesn't exist.
BodyNode::NodeMap::iterator it = mBodyNode->mNodeMap.insert(
NodeMapPair(typeid(*this), std::vector<Node*>())).first;
std::vector<Node*>& nodes = it->second;
BodyNode::NodeDestructorSet& destructors = mBodyNode->mNodeDestructors;
NodeDestructorPtr destructor = getOrCreateDestructor();
if(INVALID_INDEX == mIndexInBodyNode)
{
// If the Node was not in the map, then its destructor should not be in the set
assert(destructors.find(destructor) == destructors.end());
// If this Node believes its index is invalid, then it should not exist
// anywhere in the vector
assert(std::find(nodes.begin(), nodes.end(), this) == nodes.end());
nodes.push_back(this);
mIndexInBodyNode = nodes.size()-1;
destructors.insert(destructor);
}
assert(std::find(nodes.begin(), nodes.end(), this) != nodes.end());
assert(destructors.find(destructor) != destructors.end());
const SkeletonPtr& skel = mBodyNode->getSkeleton();
if(skel)
skel->registerNode(this);
mAmAttached = true;
}
