feat: added pipes and logic for pipes

include/elements.hpp

@@ -8,13 +8,23 @@ struct Point {
 	Point(int row, int col) : m_row(row), m_col(col) {};
 	int m_row;
 	int m_col;
+	void assign(int row, int col);
+	void to_string();
 };
 
 struct Bird {
 	Bird() : m_fly(false) {};
-	Point m_body {(ROW/2), 2};
+	Point m_body {(ROW/2), 4};
 	bool m_fly;
 	void move();
+	void check_collision();
+};
+
+struct Pipe {
+	Pipe();
+	int m_size;
+	Point m_nodes[ROW];
+	void move();
 };
 
 #endif