Function addNode

shared/scene/Scene.cpp:10–43

void loadStringList(FILE* f, std::vector<std::string>& lines);

int addNode(Scene& scene, int parent, int level)
{
	int node = (int)scene.hierarchy_.size();
	{
		// TODO: resize aux arrays (local/global etc.)
		scene.localTransform_.push_back(glm::mat4(1.0f));
		scene.globalTransform_.push_back(glm::mat4(1.0f));
	}
	scene.hierarchy_.push_back({ .parent_ = parent, .lastSibling_ = -1 });
	if (parent > -1)
	{
		// find first item (sibling)
		int s = scene.hierarchy_[parent].firstChild_;
		if (s == -1)
		{
			scene.hierarchy_[parent].firstChild_ = node;
			scene.hierarchy_[node].lastSibling_ = node;
		} else
		{
			int dest = scene.hierarchy_[s].lastSibling_;
			if (dest <= -1)
			{
				// no cached lastSibling, iterate nextSibling indices
				for (dest = s; scene.hierarchy_[dest].nextSibling_ != -1; dest = scene.hierarchy_[dest].nextSibling_);
			}
			scene.hierarchy_[dest].nextSibling_ = node;
			scene.hierarchy_[s].lastSibling_ = node;
		}
	}
	scene.hierarchy_[node].level_ = level;
	scene.hierarchy_[node].nextSibling_ = -1;
	scene.hierarchy_[node].firstChild_  = -1;
	return node;
}

void markAsChanged(Scene& scene, int node)
{