Simply re-init the overlay on new level. Closes #14.

gui/overlay_ui.cpp

@@ -14,6 +14,7 @@ namespace gui {
         "[_|middle|middle_right]"
         "[_|bottom|bottom_right]"
         );
+    $gui.init();
   }
 
   inline void make_clickable_area(GameLevel& level, guecs::UI &gui, const std::string &name) {
@@ -27,7 +28,7 @@ namespace gui {
   }
 
   void OverlayUI::init() {
-    $gui.init();
+    // gui.init is in the constructor
     make_clickable_area($level, $gui, "top");
     make_clickable_area($level, $gui, "middle");
     make_clickable_area($level, $gui, "bottom");
@@ -64,5 +65,6 @@ namespace gui {
 
   void OverlayUI::update_level(GameLevel level) {
     $level = level;
+    init();
   }
 }

worldbuilder.cpp

@@ -139,7 +139,7 @@ inline json& random_entity_data(GameConfig& config, json& gen_config) {
 
   int rand_entity = Random::uniform<int>(0, keys.size() - 1);
   std::string key = keys[rand_entity];
-  // BUG: this may crash if PLAYER_TILE isn't first
+
   return entity_db[key];
 }