added pattern Observer

source/application/Drawable/Maze/IObserver.cpp

+
+#include "../../Event/IGameEvent.h"
+#include "IObserver.h"
+
+void ScoreCount::on_notify(const IGameEvent& event) {
+    if (const auto* food_event = dynamic_cast<const DeleteStaticEntity*>(&event)) {
+        if (food_event->get_player_id() == 1)
+            ++m_player_one_food;
+        else if (food_event->get_player_id() == 2)
+            ++m_player_two_food;
+    }
+}

source/application/Drawable/Maze/IObserver.h

+#pragma once
+
+class IGameEvent;
+
+class IObserver {
+public:
+    virtual ~IObserver() = default;
+    virtual void on_notify(const IGameEvent& event) = 0;
+};
+
+
+class ScoreCount : public IObserver {
+public:
+    void on_notify(const IGameEvent& event) override;
+    int get_player_one() const {return m_player_one_food; }
+    int get_player_two() const {return m_player_two_food; }
+
+private:
+    int m_player_one_food{0};
+    int m_player_two_food{0};
+};
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source/application/Drawable/Maze/MenuGame.cpp

+#include "MenuGame.h"
+#include "../../../../config.h"
+#include "../../State/ThemeManager.h"
+#include "../../State/GameState.h"
+
+MenuGame::MenuGame() {
+    m_title.setString(config::SELECT_LEVEL_TITLE_WINDOW);
+    m_title.setCharacterSize(30);
+    m_title.setFillColor(ThemeManager::Instance().getButtonScoreColor());
+    m_title.setPosition(10.f, 55.f);
+    m_player_one_score.setFillColor(ThemeManager::Instance().getButtonScoreColor());
+    m_player_one_score.setPosition(10.f, 95.f);
+    m_player_two_score.setFillColor(ThemeManager::Instance().getButtonScoreColor());
+    m_player_two_score.setPosition(10.f, 125.f);
+}
+
+
+void MenuGame::draw_into(sf::RenderWindow &window, const ScoreCount& scores) {
+    m_player_one_score.setString("Player 1: " + std::to_string(scores.get_player_one()));
+    m_player_two_score.setString("Player 2: " + std::to_string(scores.get_player_two()));
+    window.draw(m_button);
+    window.draw(m_title);
+    window.draw(m_player_one_score);
+    window.draw(m_player_two_score);
+}
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source/application/Drawable/Maze/MenuGame.h

+#pragma once
+#include <SFML/Graphics.hpp>
+#include "IObserver.h"
+
+class MenuGame {
+public:
+    MenuGame();
+    void draw_into(sf::RenderWindow &window, const ScoreCount& scores);
+
+private:
+    sf::RectangleShape m_background;
+    sf::RectangleShape m_button;
+    sf::Text m_title;
+    sf::Text m_player_one_score;
+    sf::Text m_player_two_score;
+};
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