The Dino-Drafting Guide: Crafting Chaos with Dino Eggs

You've collected the loot, you've survived the storm, but now you're stuck in a creative lobby with nothing but a handful of dinosaur eggs and a dream of making something actually cool. Stop using those eggs just to throw them at your friends for fun (well, do that too, but let's get technical). Dino Eggs are the ultimate crafting currency in Fortnite Creative, acting as the "rare ore" you need to unlock high-tier gear, trigger secret devices, or build a mini-game economy.

In this tutorial, we're going to turn a pile of random eggs into a fully functional Crafting Station. We'll use Verse to check if a player has the right ingredients and, if they do, we'll spawn them a legendary weapon. No more guessing if your friend actually has the materials—our code will enforce the rules.

What You'll Learn

• Variables: How to track what items a player is holding (think of it like checking their backpack slots).
• Conditional Logic: Making the game decide "Yes, you can craft this" or "No, you're missing the white egg."
• Item Granting: Spawning new loot based on those decisions.
• Scene Graph Basics: Understanding where your items live in the game world.

How It Works

Before we touch any code, let's map this out using game mechanics you already know.

Imagine you're trying to build a ramp. You can't just wish it into existence; you need wood. In programming terms, Wood is a Resource. You collect it, it sits in your inventory (a Variable that holds a number), and when you press the build button, the game checks: "Does this variable equal at least 10?" If yes, you build. If no, nothing happens.

Dino Eggs work exactly the same way, but instead of wood, they are Consumables (items that disappear when used or spent).

Here is the flow we are building:

1. The Trigger: A player steps on a pressure plate (or presses a button).
2. The Check (Variable): The game looks at the player's inventory. It searches for specific Dino Eggs (e.g., White, Blue, or Red).
3. The Decision (Logic):
   • If the player has a White Egg AND a Blue Egg...
   • Then remove those eggs from their inventory (spend the materials).
   • And spawn a Healing Egg or a Weapon in their hands.
   • Else (if they don't have the eggs), play a "failed" sound or do nothing.

This is called Crafting. It's not just magic; it's a transaction. You pay with eggs, you get a reward.

Let's Build It

We are going to create a simple Verse script that sits on a device. When a player interacts with it, the script checks their inventory for a White Dino Egg. If they have one, it takes the egg and gives them a Heal Egg instead. It's a simple 1-for-1 trade, but it proves the concept.

The Setup (UEFN Editor)

1. Place a Target device in your island.
2. Place a Player Spawn or just use an existing one.
3. Create a Verse Script asset.
4. Attach the script to the Target device.
5. In the Target device properties, set the Interact Action to "Press and Hold" or "Click" depending on your preference.

The Code

Here is the Verse code. Don't panic at the syntax; we'll break it down line by line.

# We define a script named "dino_crafting_station"
# This script will run when someone interacts with the device.
# We bind it to an interactable_trigger_device so the editor gives
# us a real OnInteracted event to hook into.
using { /Fortnite.com/Devices }
using { /Fortnite.com/Characters }
using { /Verse.org/Simulation }
using { /UnrealEngine.com/Temporary/Diagnostics }

dino_crafting_station := class(creative_device):

    # Drag an Interactable Trigger Device into the editor and
    # connect it to this property so we can listen for interactions.
    @editable
    CraftingTrigger : interactable_trigger_device = interactable_trigger_device{}

    # item_granters placed in the editor supply the physical items.
    # Wire one granter per item type in the UEFN editor.
    @editable
    WhiteEggGranter : item_granter_device = item_granter_device{}   # configured to grant White Dino Egg

    @editable
    HealEggGranter  : item_granter_device = item_granter_device{}   # configured to grant Heal Egg

    # We track each player's egg count with a simple counter.
    # Key = agent hash; value = white-egg count the player has "spent" tokens for.
    # note: Verse has no runtime inventory-query API yet, so we manage
    # a logical counter that increments when the granter awards an egg
    # and decrements on a successful craft.
    var WhiteEggCounts : [agent]int = map{}

    OnBegin<override>()<suspends> : void =
        # Subscribe to the trigger's interacted event.
        CraftingTrigger.InteractedWithEvent.Subscribe(OnInteract)

    # This function runs when a player presses the interact button.
    OnInteract(Player : agent) : void =
        # 1. CHECK INVENTORY: Look up the player's logical egg count.
        # We use 0 as the default when the player has never been seen.
        HasMaterial : logic =
            if (Count := WhiteEggCounts[Player], Count > 0):
                true
            else:
                false

        # 2. LOGIC: Did they have the egg?
        if (HasMaterial?):
            # 3. SPEND MATERIAL: Decrement the White Dino Egg counter.
            # This simulates "crafting cost".
            if (OldCount := WhiteEggCounts[Player]):
                set WhiteEggCounts[Player] = OldCount - 1

            # 4. REWARD: Give them a Heal Egg via its item_granter_device.
            # GrantItem fires the granter toward the interacting agent.
            HealEggGranter.GrantItem(Player)

            # Optional: Tell the player "Crafting Successful!"
            # (In a full game, you'd play a sound or show text here.)
            Print("Crafting Complete! You got a Heal Egg.")
        else:
            # If they didn't have the egg, tell them to go find more.
            Print("Missing materials! Need a White Dino Egg.")

    # Call this whenever your island awards a White Dino Egg to a player
    # (e.g. from a pickup trigger) so the counter stays accurate.
    AwardWhiteEgg(Player : agent) : void =
        CurrentCount : int =
            if (C := WhiteEggCounts[Player]): C
            else: 0
        set WhiteEggCounts[Player] = CurrentCount + 1
        WhiteEggGranter.GrantItem(Player)

Walkthrough: What Just Happened?

1. dino_crafting_station := class(creative_device): Think of this as creating a new type of device. We are telling the game, "Hey, this script behaves like a Creative Device." It's like saying, "This building is a house."

2. OnInteract(Player : agent) : void: This is an Event handler. In Fortnite, an event is anything that happens: a storm shrinks, a player dies, or a button is pressed. Here, we are listening for the InteractedWithEvent from our CraftingTrigger. When it fires, the code inside this function runs. The Player : agent part is a Parameter—it's a placeholder that the game fills in with the actual person who pressed the button.

3. HasMaterial : logic = if (Count := WhiteEggCounts[Player], Count > 0): true else: false: This is our Variable in action.

   • WhiteEggCounts[Player] is like opening the backpack menu and reading a slot.
   • Count > 0 is like asking, "Is there at least one White Dino Egg recorded here?"
   • The result is either true (yes, it's there) or false (no, it's not). We save this result into the variable HasMaterial.

4. if (HasMaterial?): This is Conditional Logic. It's the same as a Conditional Button in UEFN. If the condition is met, then do the next thing.

5. set WhiteEggCounts[Player] = OldCount - 1: This is the Crafting Cost. Just like using wood to build a wall removes the wood from your count, this line decrements the egg counter for the player. They can't use it again for this craft.

6. HealEggGranter.GrantItem(Player): This is the Reward. The item_granter_device puts a Heal Egg into the player's backpack. They can now use it to heal.

Try It Yourself

You've built the basic 1-for-1 trade. Now, level up your crafting station.

Challenge: Modify the code to require TWO items to craft the reward.

• Requirement: The player must have both a White Dino Egg AND a Blue Dino Egg.
• Reward: Give them a Hop Egg (which gives zero-gravity hops) instead of a Heal Egg.
• Hint: You'll need to check for the second egg using another if statement or combine the checks. Remember to remove both eggs if they have them!

(Don't peek at the solution until you've tried it!)

Recap

• Variables hold data (like whether a player has an egg).
• Events (like InteractedWithEvent) trigger your code to run.
• Logic (if/else) lets your game make decisions based on what players have.
• Inventory Functions (item_granter_device, counter maps) let you move items around like a real shopkeeper.

You've just turned a static object into an interactive crafting system. Next time you're in a lobby, don't just throw eggs—trade them.

References

• https://dev.epicgames.com/documentation/en-us/fortnite/using-dino-egg-items-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-dino-egg-consumables-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-items-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite/using-items-in-fortnite-creative
• https://dev.epicgames.com/documentation/en-us/fortnite-creative/using-egg-items-in-fortnite-creative