Kotlin Programming: The Big Nerd Ranch Guide, 2nd Edition

Refactoring the Tavern

Now that you have a mechanism for expressing locations in NyetHack, it is a good time to revisit the Tavern. All the tavern’s behaviors are currently defined as top-level properties and functions. Spend a moment refactoring the tavern into a class that extends from Room.

Start by defining a new Tavern class inside your existing Tavern.kt file:

Listing 15.18  Creating a Tavern class (Tavern.kt)

...
private val menuItemTypes = menuData.associate { (type, name, _) ->
    name to type
}

class Tavern : Room(TAVERN_NAME) {
    override val status = "Busy"

    override fun enterRoom() {
    }
}

fun visitTavern() {
    ...
}
...

Next, copy and paste the implementation of visitTavern into Tavern’s enterRoom function:

Listing ...