Added pickup boxes

src/MenuManager.h

@@ -70,6 +70,7 @@ namespace ZL {
 		std::function<void()> onRestartPressed;
 		std::function<void(float)> onVelocityChanged;
 		std::function<void()> onFirePressed;
+		std::function<void()> onTakeButtonPressed;
 		std::function<void(const std::string&, int)> onSingleplayerPressed;
 		std::function<void(const std::string&, int)> onMultiplayerPressed;
 	};