changes but linker error

include/engine.hpp

@@ -36,13 +36,12 @@ struct Ball {
 };
 
 struct Paddle {
-	Paddle(int size) : _size(size), m_hearts(3) {};
-	~Paddle();
+	Paddle();
 	int _size;
-	int m_hearts;
-	vec2** m_nodes;
+	int m_hearts { 3 };
+	std::array<vec2, 3> m_nodes;
 	enum Direction m_direction;
-	void determine_new_position(vec2* (*board)[COL]);
+	void determine_new_position(char (*board)[COL]);
 	void check_collision(Ball &ball);
 };
 

include/window.hpp

@@ -3,8 +3,8 @@
 #include "globals.hpp"
 
 struct Window {
-	vec2* m_board[ROW][COL] = {};
+	char view[ROW][COL] = {};
 	void clear_display();
 	void draw_display(int fps);
-	void update_board(vec2** buffer, int buffer_size);
+	void update_board(Paddle paddle, Ball ball);
 };