Now overlay UI can show some text pretty easily and is showing the debug stats.

guecs.hpp

@@ -158,10 +158,15 @@ namespace guecs {
         return $world.get<lel::Cell>(entity);
       }
 
-    template <typename Comp>
-      void remove(DinkyECS::Entity ent) {
-        $world.remove<Comp>(ent);
-      }
+      template <typename Comp>
+        Comp& get(DinkyECS::Entity entity) {
+          return $world.get<Comp>(entity);
+        }
+
+      template <typename Comp>
+        void remove(DinkyECS::Entity ent) {
+          $world.remove<Comp>(ent);
+        }
   };
 
   Clickable make_action(DinkyECS::World& target, Events::GUI event);

gui.cpp

@@ -20,14 +20,10 @@ namespace gui {
     $status_view($level),
     $overlay_view($level, $textures),
     $font{FONT_FILE_NAME},
-    $text{$font},
     $rayview($textures, RAY_VIEW_WIDTH, RAY_VIEW_HEIGHT)
     {
       $window.setVerticalSyncEnabled(VSYNC);
       $window.setFramerateLimit(FRAME_LIMIT);
-      $text.setPosition({RAY_VIEW_X,RAY_VIEW_Y});
-      $text.setCharacterSize(20);
-      $text.setFillColor(ColorValue::LIGHT_DARK);
       $textures.load_tiles();
       $textures.load_sprites();
     }
@@ -258,6 +254,7 @@ namespace gui {
             break;
           case KEY::P:
             debug();
+            break;
           default:
             break; // ignored
         }
@@ -266,21 +263,27 @@ namespace gui {
   }
 
   void FSM::debug() {
-    auto& debug = $level.world->get_the<Debug>();
-    debug.FPS = !debug.FPS;
-    debug.PATHS = !debug.PATHS;
-    auto player = $level.world->get_the<Player>();
-    auto& player_combat = $level.world->get<Combat>(player.entity);
-    player_combat.hp = player_combat.max_hp;
-    $combat_view.set_damage(float(player_combat.hp) / float(player_combat.max_hp));
+    auto& dbg = $level.world->get_the<Debug>();
+    dbg.FPS = !dbg.FPS;
+    dbg.PATHS = !dbg.PATHS;
+
+    if(dbg.FPS) {
+      // it's on now, enable things
+      auto player = $level.world->get_the<Player>();
+      auto& player_combat = $level.world->get<Combat>(player.entity);
+      player_combat.hp = player_combat.max_hp;
+      $combat_view.set_damage(float(player_combat.hp) / float(player_combat.max_hp));
+      $overlay_view.init_stats();
+    } else {
+      // it's off now, close it
+      $overlay_view.close_stats();
+    }
   }
 
   void FSM::draw_stats() {
     auto player = $level.world->get_the<Player>();
     auto player_combat = $level.world->get<Combat>(player.entity);
-
-    $text.setString(
-        fmt::format("FPS\n"
+    std::string stats = fmt::format("STATS\n"
           "HP: {}\n"
           "mean:{:>8.5}\n"
           "sdev: {:>8.5}\n"
@@ -292,9 +295,9 @@ namespace gui {
           "Debug? {}\n\n",
           player_combat.hp, $stats.mean(), $stats.stddev(), $stats.min,
           $stats.max, $stats.n, VSYNC,
-          FRAME_LIMIT, DEBUG_BUILD));
+          FRAME_LIMIT, DEBUG_BUILD);
 
-    $window.draw($text);
+    $overlay_view.draw_stats(stats);
   }
 
   void FSM::draw_blood() {

gui.hpp

@@ -56,7 +56,6 @@ namespace gui {
       OverlayUI $overlay_view;
       CameraLOL $camera;
       sf::Font $font;
-      sf::Text $text;
       Stats $stats;
       TexturePack $textures;
       Raycaster $rayview;

overlay_ui.cpp

@@ -45,4 +45,24 @@ namespace gui {
       $gui.remove<guecs::Sprite>(middle);
     }
   }
+
+  void OverlayUI::init_stats() {
+    auto top_left = $gui.entity("top_left");
+    auto &cell = $gui.cell_for(top_left);
+    Textual text{"", 20};
+    text.init(cell, $gui.$font);
+    text.text->setFillColor(ColorValue::LIGHT_MID);
+    $gui.set<Textual>(top_left, text);
+  }
+
+  void OverlayUI::draw_stats(std::string stats) {
+    auto top_left = $gui.entity("top_left");
+    auto& text = $gui.get<Textual>(top_left);
+    text.text->setString(stats);
+  }
+
+  void OverlayUI::close_stats() {
+    auto top_left = $gui.entity("top_left");
+    $gui.remove<Textual>(top_left);
+  }
 }

overlay_ui.hpp

@@ -17,5 +17,8 @@ namespace gui {
       void draw(sf::RenderWindow& window);
       void click(int x, int y);
       void show_damage(bool show);
+      void init_stats();
+      void draw_stats(std::string stats);
+      void close_stats();
   };
 }