Case in Verse

With case expressions, you can control the flow of a program from a list of choices. The case statement in Verse is a way to test one value against multiple possible values (as though you were using =), and running code based on which one matches.

The use of case expressions can be found in all kinds of applications, like in games where there is a non-playable character (NPC).

For example, let's say you use the Guard Spawner device to spawn a guard with its patrol option enabled. After the guard spawns into the game, it has a few possible active states, including Idle, Patrol, Alert, Attack, and Harvest. A high-level state-transition diagram for this could look like: