Have you ever played Asteroids[2]? If you haven't, Asteroids is an arcade space shooter that was first released by Atari in 1979. In Asteroids, you are the pilot of a ship flying through space. As you do so, you get surrounded by asteroids and flying saucers that you have to shoot and destroy.
Developing the whole game in one chapter is too ambitious and would distract us from the subject of this book. We will limit ourselves to making sure that we have a ship on the screen that we can fly around, as well as the ability to shoot space bullets into the void. By the end of this chapter, we will have something that looks like what is shown in the following screenshot:
To get started, we will create a new ClojureScript project using the same Leiningen template we used in the previous chapter, figwheel[3]:
lein new figwheel reagi-game
Next, add the...