Kotlin Programming: The Big Nerd Ranch Guide, First Edition

Exploring the World of NyetHack

Now that you have built a game loop and established a cardinal direction system on a coordinate plane, it is time to put your knowledge to the test and add more rooms to explore in NyetHack.

To set up a map of the world, you need a list that will hold all of the rooms. In fact, since players can move in two dimensions, you need a list containing two lists of rooms. The first list of rooms will hold the Town Square (where the player begins), Tavern, and Back Room, from west to east. The second list of rooms will hold the Long Corridor and the Generic Room. These lists will be held in a third list representing the y coordinate, called worldMap.

Add a worldMap property to Game with a series of rooms for ...