feat: DebugOverlay for rendering debug information

src/Game.hpp

@@ -1,5 +1,7 @@
 #pragma once
+#include <SFML/Graphics/Font.hpp>
 #include <SFML/Graphics/RenderWindow.hpp>
+#include <SFML/Graphics/Text.hpp>
 #include <SFML/Graphics/VertexArray.hpp>
 #include <SFML/System/Clock.hpp>
 #include <SFML/System/Vector2.hpp>
@@ -8,6 +10,7 @@
 #include <vector>
 
 #include "Ball.hpp"
+#include "DebugOverlay.hpp"
 #include "InputManager.hpp"
 #include "PhysicalObject.hpp"
 
@@ -22,6 +25,8 @@ class Game {
     sf::Clock m_clock;
     InputManager m_inputManager;
     sf::VertexArray m_debugLines;
+    int m_drawCallCount = 0;
+    DebugOverlay m_debugOverlay;
     void processKeyPressed(const sf::Event::KeyPressed& keyPressed);
     void processMousePressed(const sf::Event::MouseButtonPressed& mousePressed);
     void handleMouseClick(const sf::Vector2i& mousePos);