Multiple Wren files
In your project, you can make more files to separate your code. Project scripts are imported as an absolute id, relative to the project root.
If you create a file called player.wren inside the root of your project,
you can import it with import "player" for Player at the top of game.wren.
If you created that file inside of a folder, like player/logic/backpack.wren, you would use import "player/logic/backpack" for Backpack.
You always use that import id, even if you were inside a script in the player/logic/ folder.