Started the overlay UI but need to make it possible to add/remove components to it.

overlay_ui.hpp

@@ -0,0 +1,27 @@
+#pragma once
+#include "levelmanager.hpp"
+#include <SFML/Graphics/RenderWindow.hpp>
+#include <SFML/Graphics/Font.hpp>
+#include "guecs.hpp"
+
+namespace gui {
+  class OverlayUI {
+    public:
+      guecs::UI $gui;
+      GameLevel $level;
+      std::unordered_map<std::string, DinkyECS::Entity> $name_ents;
+
+      OverlayUI(GameLevel level);
+
+      void render(TexturePack& texture);
+      void draw(sf::RenderWindow& window);
+      void click(int x, int y);
+
+    template <typename Comp>
+      // this should be in the GUECS really
+      void set(std::string name, Comp val) {
+        auto ent = $name_ents.at(name);
+        $level.world->set<Comp>(ent, val);
+      }
+  };
+}