[ChatGPT][SFML][2D RPG 게임 개발] C++ 및 SFML을 사용하여 2D RPG 게임에서 스테이지 간 이동을 위한 시스템을 구현 샘플

C++ 및 SFML을 사용하여 2D RPG 게임에서 스테이지 간 이동을 위한 시스템을 구현 샘플

// Here's an example of how you might implement a system for moving between stages in a 2D RPG game using C++ and SFML
#include <SFML/Graphics.hpp>
#include <iostream>
#include <string>
#include <map>

class Stage {
 public:
  virtual void onEnter(sf::RenderWindow& window) = 0;
  virtual void update(sf::RenderWindow& window) = 0;
  virtual void onExit() = 0;
};

class Town : public Stage {
 public:
  void onEnter(sf::RenderWindow& window) override {
    std::cout << "Welcome to the Town!" << std::endl;
    // load town background
    background.loadFromFile("town.png");
  }

  void update(sf::RenderWindow& window) override {
    std::cout << "You are exploring the Town." << std::endl;
    window.clear();
    sf::Sprite sprite(background);
    window.draw(sprite);
    window.display();

    sf::Event event;
    while (window.pollEvent(event)) {
        if (event.type == sf::Event::Closed)
            window.close();
    }
    // handle input
    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)) {
      std::cout << "Exit Town" << std::endl;
      onExit();
    }
  }

  void onExit() override {
    std::cout << "You are leaving the Town." << std::endl;
  }
 private:
  sf::Texture background;
};

class Forest : public Stage {
 public:
  void onEnter(sf::RenderWindow& window) override {
    std::cout << "Welcome to the Forest!" << std::endl;
    // load forest background
    background.loadFromFile("forest.png");
  }

  void update(sf::RenderWindow& window) override {
    std::cout << "You are exploring the Forest." << std::endl;
    window.clear();
    sf::Sprite sprite(background);
    window.draw(sprite);
    window.display();

    sf::Event event;
    while (window.pollEvent(event)) {
        if (event.type == sf::Event::Closed)
            window.close();
    }

    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)) {
      std::cout << "Exit Forest" << std::endl;
      onExit();
    }
  }

  void onExit() override {
    std::cout << "You are leaving the Forest." << std::endl;
  }
 private:
  sf::Texture background;
};

class Game {
 public:
  Game() {
    window.create(sf::VideoMode(800, 600), "2D RPG Game");
    stages["town"] = std::make_unique<Town>();
    stages["forest"] = std::make_unique<Forest>();

    currentStage = stages["town"].get();
    currentStage->onEnter(window);
  }

void run() {
    while (window.isOpen()) {
      currentStage->update(window);

      if (currentStage == stages["town"].get() && sf::Keyboard::isKeyPressed(sf::Keyboard::Space)) {
        currentStage->onExit();
        currentStage = stages["forest"].get();
        currentStage->onEnter(window);
      } else if (currentStage == stages["forest"].get() && sf::Keyboard::isKeyPressed(sf::Keyboard::Space)) {
        currentStage->onExit();
        currentStage = stages["town"].get();
        currentStage->onEnter(window);
      }
    }
  }
 private:
  sf::RenderWindow window;
  std::map<std::string, std::unique_ptr<Stage>> stages;
  Stage* currentStage;
};

int main() {
  Game game;
  game.run();
  return 0;
}

이 예에서 Game 클래스에는 게임의 다양한 단계를 모두 저장하는 단계 맵이 있습니다. 지도의 키는 문자열(이 경우 "town" 및 "forest")이고 값은 각각 Town 및 Forest 클래스의 인스턴스에 대한 std::unique_ptrs입니다. currentStage 멤버 변수는 플레이어가 있는 현재 스테이지에 대한 포인터입니다. 실행 기능에는 현재 단계에서 반복적으로 업데이트를 호출하고 단계 사이를 이동하기 위한 입력을 확인하는 기본 게임 루프가 포함되어 있습니다. onExit 및 onEnter 기능은 단계 간에 전환할 때 정리 및 설정을 처리하는 데 사용됩니다.