How to Build a "Destroy Everything" Battle Bus in Verse

Stop building walls when the storm is closing in. Instead, build a tank that is the storm.

In this tutorial, we’re going to use Verse to script an Armored Battle Bus Spawner. This isn’t just a bus; it’s a mobile fortress that rams through buildings, lets three players shred enemies with front-and-rear turrets, and refuels at gas stations. We’ll write the code that spawns this beast exactly where you want it, then you’ll get behind the wheel and cause chaos.

What You'll Learn

• Spawning Devices: How to tell Verse to create a vehicle in the world at a specific spot.
• Variables: Using a "container" to store the bus’s location so you can move it around.
• The Scene Graph: Understanding how devices exist in the world hierarchy.
• Event Binding: Connecting a simple action (like pressing a button) to the bus appearing.

How It Works

Imagine you’re in the Creative Device editor. You place a "Battle Bus Spawner" device. Right now, it’s just a placeholder. It’s like a ghost bus. It doesn’t do anything until you tell it when to materialize.

In Verse, we don’t just "place" things; we spawn them. Think of spawning like the Battle Bus dropping from the sky at the start of a match. The bus exists in the "code" (the bus list), but it only becomes a physical object on the map when the game logic says "Go."

We’ll use a Variable. In programming, a variable is like a loot box. You can put something in it, take something out, or swap it for something else. Here, our loot box will hold the "Armored Battle Bus Spawner" device we placed in the world. Once we have the device in our variable, we can call its "Spawn" function.

It’s like having a remote control. The TV (the bus) is off. You press "Power" (call the Spawn function), and suddenly there’s a screen in front of you.

Let's Build It

We are going to build a simple system:

1. Place an Armored Battle Bus Spawner device in your island.
2. Write a Verse script that finds that device.
3. Connect a "Trigger Volume" (like a pressure plate) to the script.
4. When a player steps on the plate, the Bus spawns.

The Setup (Before Coding)

1. Open your Island Editor.
2. Go to Devices > Vehicles > Armored Battle Bus Spawner.
3. Place it somewhere safe (don’t spawn it inside a wall!).
4. Crucial Step: Click on the device and give it a name in the Name field. Let’s call it MyChaosBus. If you don’t name it, Verse won’t know which bus to spawn if you have more than one.
5. Place a Trigger Volume device nearby. Set it to "On Begin Play" or link it to a button you want to press.

The Verse Code

Create a new Verse file in your project (right-click in the Content Browser > New Verse Script). Paste this in:

# We need to import the basic functions that let us talk to devices.
using /Fortnite.com/Devices

# This is our main script. Think of it as the "Island Logic" controller.
# It runs when the game starts.
begin
    # 1. FIND THE DEVICE
    # We are looking for a device named "MyChaosBus".
    # This is like searching your inventory for a specific item by name.
    bus_spawner := FindDevice<"MyChaosBus">()

    # Check if we actually found it. If not, print an error to the debug screen.
    if (bus_spawner == nil):
        print("Error: Bus not found! Did you name the device 'MyChaosBus'?")
        return

    # 2. CONNECT THE TRIGGER
    # We want the bus to spawn when the trigger volume activates.
    # We connect the 'OnBegin' event of the trigger to our 'SpawnBus' function.
    # Think of this as wiring a light switch to a lamp.
    trigger_volume := FindDevice<"MyTrigger">()
    if (trigger_volume != nil):
        # When the trigger begins (player steps on it), call SpawnBus
        trigger_volume.OnBegin += SpawnBus

# 3. THE ACTION FUNCTION
# This function actually makes the bus appear.
SpawnBus() -> void:
    # 'Spawn' is the function that tells the device to materialize in the world.
    # It’s like hitting the "Deploy" button on a turret.
    bus_spawner.Spawn()
    
    # Optional: Print a message to the chat so players know the bus is here.
    print("Armored Bus Deployed! Get in before the storm hits!")

Walkthrough

• FindDevice<"MyChaosBus">(): This is the most important line. It scans the entire island for a device with that exact name. If you named your device "Bus1" in the editor, change MyChaosBus to Bus1 in the code.
• OnBegin += SpawnBus: This is an Event Binding. In Fortnite, events are like triggers. OnBegin fires when the device starts (or is activated). We are saying, "When this happens, run the SpawnBus code."
• bus_spawner.Spawn(): This is the magic button. It takes the device definition and turns it into a physical, drivable vehicle in the game world.

Try It Yourself

Challenge: The current code spawns the bus and leaves it there. What if you want to reset the map?

Add a second device called ResetButton (a Button Device). When a player presses it, the bus should despawn (disappear).

Hint: You’ll need to find the ResetButton and connect its OnActivate event to a new function called DespawnBus(). Inside that function, look for a Despawn() function on the bus_spawner variable. (Note: Not all devices support despawning, so check the device’s available functions in the Verse API reference if it doesn’t work!)

Recap

You’ve just written your first functional Verse script that interacts with the game world. You learned how to:

1. Find a device by name using FindDevice.
2. Bind an event (OnBegin) to a function.
3. Spawn a vehicle, turning code into chaos.

Now go build a map where the only way to win is to drive through it.

References

• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-armored-battle-bus-spawner-devices-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite/using-armored-battle-bus-spawner-devices-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite/using-war-bus-spawner-devices-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite/using-devices-in-fortnite
• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-war-bus-spawner-devices-in-fortnite-creative