Our game will be set in a four directional scrolling world that the player will be able to traverse while hunting for asteroids. The world will be enclosed in a rectangular border to keep the asteroids from drifting off too far, and the border will also serve as another hazard for the player to avoid.
We will reuse our InputController class with a few simple modifications and can even keep the same button layout. As we will see, however, we will draw the buttons on screen in a very different manner to our retro platformer. Also, instead of walking left and right, the player will rotate the ship left and right through 360 degrees. The jump button will become a thrust toggle switch to turn on and off forward motion, and the shoot button will remain just that. We will also have the pause button in the same place.