Chapter 3: Creating a Space Shooter

This chapter enters new territory as we begin development on our second game, a twin-stick space shooter. The twin-stick genre refers to any game in which the player input for motion spans two dimensions or axes, typically one axis for movement and one for rotation. Example twin-stick games include Zombies Ate My Neighbors and Geometry Wars. Our game will rely heavily on coding in C# to demonstrate just how much can be achieved with Unity procedurally (that is, via script), without using the editor and level-building tools. We'll still use the editor tools to some extent but won't rely on it as heavily as we did in the previous chapters.

Try to see the game created here and its related work in abstract terms, that is, as general tools and concepts with multiple applications. For your own projects, you may not want to make a twin-stick shooter, and that's fine. However, it's essential to see the ideas and tools used here as...