Initial idea for the boss fight UI but it's just a temporary holder for now.

boss_fight_ui.hpp

@@ -0,0 +1,34 @@
+#pragma once
+#include "levelmanager.hpp"
+#include <SFML/Graphics/RenderWindow.hpp>
+#include <SFML/Graphics/Font.hpp>
+#include "guecs.hpp"
+#include "textures.hpp"
+#include <SFML/System/Clock.hpp>
+
+// aspect ratio of art is 3/2 so 1.5
+// possible sizes:  900/600; 1620/1080; 1800/1200
+// To calculate it do short side * 1.5 so 1080 * 1.5 == 1620
+//
+// Side panel = 300/1080
+
+namespace gui {
+  using namespace guecs;
+  using std::string;
+
+  class BossFightUI {
+    public:
+      sf::Clock $clock;
+      bool $boss_hit = false;
+      guecs::UI $status;
+      guecs::UI $overlay;
+      textures::SpriteTexture $boss_image;
+
+      BossFightUI();
+
+      void init();
+      void render(sf::RenderWindow& window);
+      bool mouse(float x, float y);
+      void bounce_boss(sf::RenderWindow& window);
+  };
+}