A scene diagram is useful when designing the skeleton of the application. For now, the scene is just a screen that is part of our game. We want to have a few different screens in our game, that is, different scenes. A typical game contains at least a splash scene, a menu scene, and a game scene. A splash scene is usually used to load resources in the background while showing a badge or logo of the game author.

We can add a loading scene between the menu and the game or between different levels or stages of the game. Some games will also have a special scene for game settings, final score, hall of fame, and so on.

We will keep our scenes to a minimum. The following is a simple diagram that shows transitions from one scene to another. Notice the Back label. That means the user taps the back button on the device.

The splash and loading scenes are very simple and we do not need to spend time designing them right now. We could design our menu scene, but it won't benefit us much at this point. Let's start coding.