ActionGroup now implements Countable interface.

src/ActionGroup.php

@@ -6,7 +6,7 @@ namespace LotGD\Core;
 /**
  * A grouping of navigation actions, like a submenu.
  */
-class ActionGroup
+class ActionGroup implements \Countable
 {
     const DefaultGroup = 'lotgd/core/default';
     const HiddenGroup = 'lotgd/core/hidden';
@@ -30,6 +30,15 @@ class ActionGroup
         $this->actions = [];
     }
 
+    /**
+     * Returns the number of registered Actions for this group.
+     * @return int
+     */
+    public function count(): int
+    {
+        return count($this->actions);
+    }
+
     /**
      * Returns the unique identifier for this group, in the vendor/module/group format.
      * @return string

src/Game.php

@@ -4,6 +4,7 @@ declare (strict_types=1);
 namespace LotGD\Core;
 
 use DateTime;
+use Doctrine\Common\Util\Debug;
 use Doctrine\ORM\EntityManagerInterface;
 use LotGD\Core\Events\NavigateToSceneData;
 use LotGD\Core\Events\NewViewpointData;