The Ammo Goblins: A Verse Tutorial for Infinite Firepower

So, you’ve built the perfect sniper nest. You’ve placed the traps. You’ve even rigged the floor to explode if someone steps on it. But there’s one problem: ammo.

In regular Fortnite, you scavenge for bullets. In Creative, you can just spawn a gun. But what if you want the tension of running out of ammo? What if you want to reward players who find secret caches with infinite rockets, or punish them by making their ARs shoot blanks unless they grab a specific ammo box?

That’s where Ammo Consumables come in. Think of them as the "mana potions" of Fortnite. They don’t heal you, but they let you keep casting your "fire" spell.

In this tutorial, we’re going to use Verse (Epic’s programming language for Fortnite islands) to create a system where players can find ammo boxes, but we’ll also add a twist: a "Greedy Gobbler" trap that steals ammo if you touch it. We’ll learn how to handle variables (your inventory count), events (when things happen), and functions (the actions you can take).

Let’s get shooting.

What You'll Learn

• What a Consumable Is: Understanding how items like ammo work in the game engine.
• Variables: How to track how much ammo a player has (like a health bar that counts bullets).
• Events: Triggering actions when a player picks up an item.
• Functions: Writing the code that actually gives or takes ammo.

How It Works

Before we write code, let’s map this to something you already know.

1. Consumables = Loot Drops

In Fortnite, when you break a crate, you get loot. In Verse, Consumables are just items that exist in the game world that can be picked up and used. Ammo is a type of consumable. It’s not a weapon; it’s the fuel for the weapon.

2. Variables = Your Inventory Slot

Imagine your inventory has a slot for "5.56mm Ammo." Right now, it says 0. When you pick up an ammo box, that number changes to 30. In programming, a Variable is just a container that holds a value that can change.

• Constant: The max capacity of your ammo slot (e.g., 99). This never changes.
• Variable: The current amount of ammo you have. This changes every time you shoot or pick up a box.

3. Events = The "Ping" Sound

You know when you hear a "ding" when you pick up a chest? That’s an Event. An event is something that happens in the game world that the code notices.

• Player touches Ammo Box -> Event Triggered -> Code Runs -> Ammo Added.

4. Functions = The Recipe

A Function is a set of instructions. Think of it like a recipe for a Storm Shield.

• Recipe: Take 100 wood, 50 stone, 50 metal. Mix them.
• Function: GiveAmmo(Player, Amount).
  • Input: Player ID, Amount of ammo.
  • Action: Update the player’s variable.

Let's Build It

We are going to build a simple script that does two things:

1. Spawns an Ammo Box in the world.
2. Detects when a player picks it up and adds ammo to their inventory.

We’ll use the Item Granter device, which is the easiest way to give items to players. But instead of just placing it, we’ll use Verse to make it more dynamic.

The Verse Code

Copy this code into a new Verse file in UEFN. I’ve added comments (lines starting with //) to explain what’s happening.

// This is a simple Verse script to manage ammo pickups.

using { /Fortnite.com/Devices }
using { /Fortnite.com/Items }
using { /Verse.org/Simulation }

# Create a new "Ammo Manager" script
ammo_manager := script()

# This function is called when the script starts.
# Think of it as "Pressing Start" on your island.
on_start := func() {
    # We need to find the Item Granter device in our island.
    # Imagine looking through your inventory to find the "Item Granter" device.
    granter := GetDevice("AmmoBoxGranter")

    # Check if the device exists. If not, the script stops (or warns you).
    if (granter != nil) {
        # Set up the "Trigger" (Event)
        # We want to know when a player interacts with this granter.
        granter.InteractedWith.Subscribe(on_player_picks_up)
        
        # Print a message to the debug log (like the in-game chat)
        Print("Ammo Box is ready! Go grab it.")
    }
}

# This is the function that runs when the event happens.
# "InteractedWith" is the event. This function is the reaction.
on_player_picks_up := func(event : InteractedWithEvent) {
    # Get the player who touched the device
    player := event.Actor.GetOwner()

    # Check if the actor is actually a player (not a wall or a tree)
    if (player != nil) {
        # Create the Ammo Item.
        # We need to specify the type. Let's use "5.56mm" ammo.
        # In Verse, we use the Item class to define what item we want.
        ammo_item := CreateItem("5.56mmAmmo")

        # Give the item to the player.
        # This is like saying: "Take this ammo and put it in your inventory."
        player.GiveItem(ammo_item)

        # Optional: Print a message to the player
        Print(player.GetDisplayName() + " got some ammo!")
        
        # Optional: Disable the granter so it can't be used again (like a one-time chest)
        granter.Disable()
    }
}

Walkthrough: What Just Happened?

1. on_start: This is the first thing that runs. It’s like the Battle Bus taking off. It looks for a device named "AmmoBoxGranter".
2. GetDevice: This is a Function that searches your island for a device with a specific name. If you named your Item Granter "MyCoolAmmoBox", you’d change "AmmoBoxGranter" to "MyCoolAmmoBox".
3. Subscribe: This is how we listen for Events. We’re telling Verse: "Hey, whenever someone interacts with this granter, run the on_player_picks_up function."
4. CreateItem: This creates the actual ammo object. We specify "5.56mmAmmo" because that’s the internal name for 5.56mm ammo.
5. GiveItem: This is the magic line. It moves the ammo from "nowhere" into the player’s inventory.

Try It Yourself

Now that you have the basics, try this challenge:

The Challenge: Modify the script so that instead of giving 5.56mm ammo, it gives Rockets. Also, make it give 10 rockets instead of just 1.

Hint:

• Look up the item name for Rockets in the Fortnite Creative inventory (it’s usually something like "RocketAmmo").
• The GiveItem function might only give 1 by default. You might need to look at the Item Granter device settings in UEFN to set the "Quantity" to 10, or see if Verse has a way to specify quantity. (Spoiler: The easiest way is to use the Item Granter device’s built-in "Quantity" slider in the editor, and just use Verse to trigger it!)

Recap

• Consumables are items like ammo that you pick up and use.
• Variables store data that changes, like your current ammo count.
• Events are moments in time (like touching a device) that trigger code.
• Functions are the actions you take in response to events.

You now have the power to create your own ammo systems. No more running out of bullets because you forgot to check the corner!

References

• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-ammo-consumables-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-consumables-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite/using-ammo-items-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite/fortnite-glossary
• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-nature-consumables-in-fortnite-creative