Simplify the color system by using a simple Values system for the dark to light.

sfmlbackend.cpp

@@ -17,6 +17,19 @@ using namespace fmt;
 using namespace nlohmann;
 using std::string;
 
+std::array<sf::Color, 10> VALUES{
+  sf::Color{1, 4, 2},  // black
+  sf::Color{9, 29, 16}, // dark dark
+  sf::Color{14, 50, 26}, // dark mid
+  sf::Color{0, 109, 44}, // dark light
+  sf::Color{63, 171, 92}, // mid
+  sf::Color{161, 217, 155}, // light dark
+  sf::Color{199, 233, 192}, // light mid
+  sf::Color{229, 245, 224}, // light light
+  sf::Color{255, 255, 255}, // white
+  sf::Color::Transparent, // white
+};
+
 void SoundQuip::load(json &data, const char *file_key, bool loop) {
   auto audio = data["audio"];
   json::string_t file_name = audio[file_key].template get<string>();
@@ -41,6 +54,10 @@ void SFMLBackend::Window_update() {
     window.display();
 }
 
+sf::Color SFMLBackend::value(Value level) {
+  return VALUES.at(int(level));
+}
+
 void SFMLBackend::handle_events() {
   sf::Event event;
 
@@ -85,25 +102,25 @@ sf::Vector2f translate(int x, int y) {
 }
 
 
-void SFMLBackend::write_text(int x, int y, string content, float size_mult) {
+void SFMLBackend::write_text(int x, int y, string content, float size_mult, Value color) {
   sf::Vector2f position = translate(x,y);
   sf::Text text;
   text.setFont(font);
   text.setString(content);
   text.setCharacterSize(TEXT_SIZE * size_mult);
-  text.setFillColor(sf::Color(100, 250, 50));
+  text.setFillColor(value(color));
   text.setPosition(position);
   window.draw(text);
 }
 
 sf::RectangleShape SFMLBackend::box(int x, int y, int width, int height,
-    sf::Color fill, sf::Color outline, int thickness)
+    Value fill, Value outline, int thickness)
 {
   sf::RectangleShape box(translate(width, height));
   box.setPosition(translate(x,y));
-  box.setOutlineColor(outline);
+  box.setOutlineColor(value(outline));
   box.setOutlineThickness(thickness);
-  box.setFillColor(fill);
+  box.setFillColor(value(fill));
   window.draw(box);
   return box;
 }
@@ -116,15 +133,15 @@ void SFMLBackend::update_entities() {
   window.draw(face_sprite);
 
   sf::RectangleShape stats_box = box(X_ROWS/4 + 4, 2,
-      X_ROWS - X_ROWS/4 - 5, Y_LINES/2);
+      X_ROWS - X_ROWS/4 - 5, Y_LINES/2, Value::DARK_DARK);
 
   constexpr int hp_box_len = 45;
   int current_hp = (float(game.hit_points) / float(game.starting_hp)) * float(hp_box_len);
 
   sf::RectangleShape hp_bar = box(2, 21, current_hp, 2,
-      sf::Color(100, 250, 50));
+      Value::LIGHT_MID, Value::LIGHT_MID, 0);
 
-  sf::RectangleShape hp_box = box(2, 21, hp_box_len, 2);
+  sf::RectangleShape hp_box = box(2, 21, hp_box_len, 2, Value::TRANSPARENT);
 
   string status = fmt::format("HP {}\nRounds {}\nStreaks {}\nDeaths {}",
       game.hit_points, game.rounds,
@@ -135,10 +152,10 @@ void SFMLBackend::update_entities() {
   string time = fmt::format("{:%r}", fmt::localtime(t));
   write_text(2, 14, time, 2.0f);
 
-  sf::RectangleShape start_btn = box(27, 16, 8, 3);
+  sf::RectangleShape start_btn = box(27, 16, 8, 3, Value::DARK_MID);
   write_text(29, 16, "START", 1.0f);
 
-  sf::RectangleShape done_btn = box(37, 16, 8, 3);
+  sf::RectangleShape done_btn = box(37, 16, 8, 3, Value::DARK_MID);
   write_text(39, 16, "DONE", 1.0f);
 
   Window_update();

sfmlbackend.hpp

@@ -11,16 +11,23 @@
 
 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;
-const sf::Color OUTLINE(50, 200, 25);
-constexpr int THICKNESS=10;
-const sf::Color FILL = sf::Color::Transparent;
-
+constexpr Value BOX_OUTLINE = Value::MID;
+constexpr int BOX_THICKNESS=10;
+constexpr Value BOX_FILL = Value::TRANSPARENT;
 
 class SoundQuip {
 public:
@@ -64,12 +71,14 @@ public:
   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,
-    sf::Color fill=FILL,
-    sf::Color outline=OUTLINE,
-    int thickness=THICKNESS);
+    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);
+  void write_text(int x, int y, string content, float size_mult=1.0f, Value color=TEXT_COLOR);
 
   void Window_update();
 };