chore: added one getter to BaseScreen

core/src/sagittarius/view/BaseScreen.java

@@ -48,7 +48,11 @@ public abstract class BaseScreen implements Screen {
     }
 
     @Override public void pause() {}
-    @Override public void resume(){}
+    @Override public void resume() {}
     @Override public void show() {}
     @Override public void hide() {}
+
+    public Stage getUIStage() {
+        return uiStage;
+    }
 }