Updated useEvent

src/dawntictactoe/components/TicTacToeTile.cpp

@@ -25,7 +25,6 @@ void TicTacToeTile::onStart() {
     }
   };
 
-  useEffect(tileState, cb);
-  useEffect(hovered, cb);
+  useEffect(cb, { &tileState, &hovered });
   cb();
 }

src/dawntictactoe/scenes/TicTacToeScene.hpp

@@ -17,6 +17,8 @@ namespace Dawn {
   class TicTacToeScene : public Scene {
     protected:
       Camera *camera;
+      StateProperty<int32_t> age;
+      StateEvent<int32_t> ageEvent;
 
       void stage() override {
         camera = Camera::create(this);