#include "Scene.h"
#include "Scene/Node.h"
void DeleteSubGraph(Node* tree);

Scene::Scene(std::string sceneName)
{
	// Create a root node
	root = new Group(sceneName);
	root->name = sceneName;

}

Scene::~Scene()
{
	// Delete all nodes in the graph.
	DeleteSubGraph(root);

}


Node* SearchInChildren(Node* root, std::string name ) {
	
	if (root->name == name)
		return root;

	Node* found = nullptr;
	for (auto child : root->children) {
		found = SearchInChildren(child, name);
	}
	return found;
}


Node& Scene::GetSceneNode(std::string name)
{
	return *SearchInChildren(root, name);
}



Node& Scene::GetRoot()
{
	return *root;
}



void Node::addChild(Node& node)
{
	children.push_back(&node);
}


void DeleteSubGraph(Node* tree)
{
	if (tree->children.size() == 0) {
		delete tree;
		return;
	}

	for (auto child : tree->children) {
		if (child->children.size() > 0) {
			DeleteSubGraph(child);
		}
	}

}