turings-tarpit/sfmlbackend.hpp

#pragma once
#include <SFML/System.hpp>
#include <SFML/Graphics/RectangleShape.hpp>
#include <SFML/Graphics/RenderWindow.hpp>
#include <SFML/Graphics/Sprite.hpp>
#include <SFML/Graphics/Font.hpp>
#include <SFML/Audio.hpp>
#include <nlohmann/json.hpp>
#include "game_engine.hpp"
#include <string>

using std::string;

enum class Value {
  BLACK=0, DARK_DARK, DARK_MID,
  DARK_LIGHT, MID, LIGHT_DARK, LIGHT_MID,
  LIGHT_LIGHT, WHITE, TRANSPARENT
};


constexpr int FPS=30;
constexpr int X_DIM = 1920 / 2;
constexpr int Y_DIM = 1080 / 2;
constexpr int TEXT_SIZE = 48;
constexpr Value TEXT_COLOR = Value::LIGHT_LIGHT;
constexpr int Y_LINES = 23;
constexpr int X_ROWS = 48;
constexpr Value BOX_OUTLINE = Value::MID;
constexpr int BOX_THICKNESS=10;
constexpr Value BOX_FILL = Value::TRANSPARENT;

enum class Button {
  NONE, START, STOP
};

class SoundQuip {
public:
  sf::Sound sound;
  sf::SoundBuffer buffer;
  bool initialized;

  SoundQuip() {};

  void load(nlohmann::json &data, const char *file_key, bool loop=false);
  void play();
  void stop();
};

class SFMLBackend {
  sf::ContextSettings settings;
  sf::RenderWindow window;
  sf::Sprite face_sprite;
  sf::Texture face_texture;
  sf::Sprite stop_button;
  sf::Texture stop_texture;
  sf::Sprite start_button;
  sf::Texture start_texture;
  std::chrono::time_point<std::chrono::system_clock> clock_start;
  Button buttons = Button::STOP;
  int hit_points = 50;
  sf::Font font;
  GameEngine &game;
  std::vector<string> log;

public:
  SFMLBackend(GameEngine &g);

  // prevent copy
  SFMLBackend(SFMLBackend &g) = delete;

  void startup();

  bool is_open();
  void shutdown();

  void change_face(const string name);
  void handle_events();
  void update_entities();
  void update_log(std::vector<string> &lines);

  sf::Color value(Value level);

  sf::RectangleShape box(int x, int y, int width, int height,
    Value fill=BOX_FILL,
    Value outline=BOX_OUTLINE,
    int thickness=BOX_THICKNESS);

  void write_text(int x, int y, string content, float size_mult=1.0f, Value color=TEXT_COLOR);

  void Window_update();
};