advanceBaseGame.js

const advance = {
    roomId: "hub",
    rooms: [
        {
            id: "hub",
            name: "Advance! Hub",
            desc: "Welcome to **Advance!** Get out there by running **ADVANCE**!"
        },
        {
            id: "openingShip",
            name: "Advancing Ferry Front Deck",
            desc: "The ferry is headed to a wonderful place named Onwardtown. While you wait, how about you **LOOK** around?",
            onLook: () => {
                getRoom("openingShip").desc = `There is a large sea of water in front of you. To the **SOUTH**, there is an entrance to the interior passanger compartment. There is a stereotypical-looking sailor standing beside the door.
                He asks, "What do you think you're looking at, son?"`
            }
        }
    ],
    characters: [
        {
            name: ["sailor","rude man","man"],
            roomId: "openingShip",
            desc: `You look at the man. After concluding once again that he is a sailor, you feel pretty smart.`
        }
    ]
}
const advanceCommand = () => {
    if(disk.roomId == "hub") {
        println("Advancing...");
        enterRoom("openingShip");
    } else {
        println("You don't see any way to advance further, probably because you are an idiot who just typed in the start command after the game had already started.")
    }
};

commands[0] = Object.assign(commands[0], {
    advance: advanceCommand,
    north: () => goDir("north"),
    south: () => goDir("south"),
    east: () => goDir("east"),
    west: () => goDir("west")
})