Added class Node

include/core/node.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <string>
+#include <vector>
+#include <memory>
+
+class Node: public std::enable_shared_from_this<Node>
+{
+public:
+	explicit Node(std::shared_ptr<Node> parent = nullptr, std::string name = "without name");
+
+	~Node();
+
+	std::shared_ptr<Node> get_parent() const;
+	std::vector<std::shared_ptr<Node>> get_children() const;
+	std::shared_ptr<Node> add_child();
+	void remove_child(std::shared_ptr<Node> child);
+	std::string get_name() const;
+	void change_name(std::string new_name);
+
+private:
+	const std::weak_ptr<Node> _parent;
+	std::vector<std::shared_ptr<Node>> _child;
+	std::string _name;
+};

src/core/node.cpp

@@ -0,0 +1,71 @@
+#include "core/node.h"
+#include "core/logging.h"
+
+Node::Node(std::shared_ptr<Node> parent, std::string name)
+	: _name(name), _parent(parent)
+{
+	if (parent != nullptr)
+	{
+		parent->_child.push_back(shared_from_this());
+	}
+}
+
+Node::~Node()
+{
+	_child.clear();
+	auto parent = _parent.lock();
+	if (parent) {
+		parent->remove_child(shared_from_this());
+	}
+}
+
+std::shared_ptr<Node> Node::get_parent() const 
+{
+	return _parent.lock();
+}
+
+std::vector<std::shared_ptr<Node>> Node::get_children() const 
+{
+	return _child;
+}
+
+std::shared_ptr<Node> Node::add_child()
+{
+	Node child(*this);
+	std::shared_ptr<Node> child_ptr = std::make_shared<Node>(child);
+	_child.push_back(child_ptr);
+	return child_ptr;
+}
+
+void Node::remove_child(std::shared_ptr<Node> del_child) 
+{
+	std::vector<std::shared_ptr<Node>>::iterator child_iter = _child.begin();
+	auto del_child_iter = _child.end();
+	while(child_iter != _child.end())
+	{
+		if (*child_iter == del_child) 
+		{
+			del_child_iter = child_iter;
+			break;
+		}
+		child_iter++;
+	}
+	if (del_child_iter == _child.end()) 
+	{
+		LOGW("Not possible to delete a non-existent child");
+	}
+	else
+	{
+		_child.erase(del_child_iter);
+	}
+}
+
+std::string Node::get_name() const
+{
+	return _name;
+}
+
+void Node::change_name(std::string new_name)
+{
+	_name = new_name;
+}