في هذا المشروع كلما ضغطت السهم الايمن تتغير الخلفية، و يجب ان يظهر الديناصور فقط في المسرح In this project, the scene changes when you press the right arrow key. The star of the project -- a dinosaur -- should be hidden in every scene, except when the scene transitions to the auditorium backdrop. In the auditorium, the dinosaur should appear and do a dance. But the dinosaur is always present and is not dancing at the right time. How do we fix the program?
