Support doors with keys

Add initial support for doors and keys via pre-defined mappings:
k || d
------
1 -> a
2 -> b
3 -> c
4 -> d

Any key can open any door of its mapping, but is spent once used.
May require additional testing

1 files changed, 37 insertions, 1 deletions

diff --git a/src/SfmlUtils.h b/src/SfmlUtils.h
index dd63cd6..86d5f62 100644
--- a/src/SfmlUtils.h
+++ b/src/SfmlUtils.h
@@ -63,6 +63,14 @@ inline sf::RectangleShape create_square(sf::Color color, int x, int y) {
   return rect;
 }
 
+inline sf::RectangleShape create_small_square(sf::Color color, int x, int y) {
+  sf::RectangleShape rect({SPRITE_SIZE - 4.f, SPRITE_SIZE - 4.f});
+  rect.setFillColor(color);
+  auto pos = to_position_xy(x, y);
+  rect.setPosition({pos.x + 2.f, pos.y + 2.f});
+  return rect;
+}
+
 inline sf::RectangleShape create_wall(int x, int y) {
   return create_square(WALL_COLOR, x, y);
 }
@@ -79,6 +87,34 @@ inline sf::RectangleShape create_treasure(int x, int y) {
   return create_square(sf::Color::Yellow, x, y);
 }
 
+inline sf::RectangleShape create_key(char t, int x, int y) {
+  switch (t) {
+  case '1':
+    return create_small_square(sf::Color::Blue, x, y);
+  case '2':
+    return create_small_square(sf::Color::Green, x, y);
+  case '3':
+    return create_small_square(sf::Color::Black, x, y);
+  case '4':
+  default:
+    return create_small_square(sf::Color::White, x, y);
+  }
+}
+
+inline sf::RectangleShape create_door(char t, int x, int y) {
+  switch (t) {
+  case 'a':
+    return create_square(sf::Color::Blue, x, y);
+  case 'b':
+    return create_square(sf::Color::Green, x, y);
+  case 'c':
+    return create_square(sf::Color::Black, x, y);
+  case 'd':
+  default:
+    return create_square(sf::Color::White, x, y);
+  }
+}
+
 inline sf::Vector2f round(const sf::Vector2f vector) {
   return sf::Vector2f{std::round(vector.x), std::round(vector.y)};
 }
@@ -107,4 +143,4 @@ inline sf::Text write_text(const char *msg, unsigned int fontSize,
   return text;
 }
 
-#endif // DNG_SFML_UTILS_H
\ No newline at end of file
+#endif // DNG_SFML_UTILS_H