Creating a Crafting Station

Requirements

You've done everything in Getting Started and Palworld Modding Kit.
You've done eveything in Creating a New Bow to understand dummy assets and how to package your mod.

Palworld Modding Kit

Go ahead and launch Palworld Modding Kit and we can get started.

Creating the Blueprint

In the Content folder, create the following folder structure: PSTutorial/MyNewCraftingStation
Right-click on the empty space inside the MyNewCraftingStation folder and select Blueprint Class.
In the "Pick Parent Class" menu, you'll want to search for PalBuildObject and select that as the parent class. Name the blueprint BP_NewCraftingStation.

Open BP_NewCraftingStation and add a few components to this Actor to make sure it doesn't crash when you load it in-game. Add the following Components:
- Static Mesh, name it StaticMesh
- BP_WorkVisualFX, name it BP_WorkVisualFX
- PalWorkFacingComponent, name it WorkFacing
- BP_InteractableBox, name it BP_InteractableBox
- PalMapObjectItemConverterParameterComponent, name it ItemConverterParameter
- Box Collision, name it BuildWorkableBounds
- Box Collision, name it CheckOverlapCollision

Your setup should look like the image below, make sure StaticMesh is the parent for BP_WorkVisualFX, WorkFacing, BP_InteractableBox, BuildWorkableBounds and CheckOverlapCollision

Select BP_NewCraftingStation in the Component Hierarchy and adjust the following values:

Overlap Check Collision Ref set Component Name to CheckOverlapCollision

ConcreteModelClass should be set to PalMapObjectConvertItemModel

DestroyFXType set this to whatever you'd prefer.
Select the StaticMesh and change the Static Mesh property to a mesh of your preference or if you don't have a mesh, you can just search for Cube instead and use that. If you decide to go the Cube path, then you might notice that there's two of them. You'll want the one which has the path /Engine/BasicShapes rather than /Engine/EngineMeshes.

You might notice that I've set Z position on the Static Mesh to 48.0. This is to prevent the Mesh from clipping into the ground when you build it and the amount you need to adjust it depends on the Mesh you're using. I've also set the Material to BasicShapeMaterial.
Next, adjust the Box Extent on BP_InteractableBox, BuildWorkableBounds and CheckOverlapCollision. This is something you'll have to fine tune yourself, but for this tutorial I've set them to the following XYZ values:
- BP_InteractableBox and BuildWorkableBounds: 96.0, 96.0, 96.0
- CheckOverlapCollision: 52.0, 52.0, 52.0
Now adjust the Collision Settings for the following Components:
- StaticMesh
  
  Collision Presets: MapObjectPhysics
- BuildWorkableBounds
  
  Generate Overlap Events: Unchecked
  
  Can Character Step Up On: No
  
  Collision Presets: NoCollision
- CheckOverlapCollision
  
  Collision Presets: BuildingOverlap

I know it's a lot of components already, but the next step is the final one we need to do in Modding Kit which is ItemConverterParameter. This is where we determine what types of items can be crafted at our Crafting Station and the TargetMaxRank of the Crafting Station.

The TargetMaxRank in ItemConverterParameter corresponds to the Rank requirement of items.

Adjust TargetTypesA, TargetTypesB and TargetMaxRank under the PalMapObjectItemConverterParameterComponent section.

For the sake of this tutorial, we'll use the same types that the Primitive Workbench has, however you're free to set these to what you want, but keep in mind that including some types might introduce bugs. You can go ahead and copy paste the lines below into their respective properties by right clicking the property name and selecting Paste. Make sure to include the ( and ), plus the text inside of it.

TargetTypesA

(Weapon,Armor,Consume,Ammo,Material,SpecialWeapon,Glider)

TargetTypesB

(ArmorBody,ArmorHead,SPWeaponCaptureBall,ConsumeBullet,WeaponMelee,WeaponBow,ConsumeOther,MaterialProccessing,Shield,Glider,Essential_UnlockPlayerFuture,WeaponHandgun,WeaponThrowObject,WeaponCrossbow,Essential_AdditionalInventory)

Set TargetRankMax to 5 which is one rank above Production Assembly Line II
That's everything in Modding Kit! Now you can package the project and we can move into Pal Schema stuff.

Pal Schema

Crafting Station

Create the following folder structure:

NewCraftingStation/buildings/newcraftingstation.json

The NewCraftingStation and newcraftingstation.json can be called anything, however the buildings folder must always be named like this when working with buildings.

Open newcraftingstation.json and copy-paste the following inside it:

{
    "TUTORIAL_NewCraftingStation": {
        "Name": "Tutorial Workbench",
        "Description": "This is the description that shows up in the Build Wheel.",
        "BlueprintClassName": "BP_NewCraftingStation",
        "BlueprintClassSoft": "/Game/PSTutorial/MyNewCraftingStation/BP_NewCraftingStation.BP_NewCraftingStation_C",
        "IconTexture": "/Game/Pal/Texture/BuildObject/PNG/T_icon_buildObject_WorkBench.T_icon_buildObject_WorkBench",
        "Hp": 2000,
        "Defense": 2,
        "MaterialType": "Wood",
        "MaterialSubType": "Wood",
        "bBelongToBaseCamp": true,
        "DeteriorationDamage": 0.2,
        "BuildingData": {
            "TypeA": "Product",
            "TypeB": "Prod_Craft",
            "Rank": 5,
            "RequiredBuildWorkAmount": 1.0,
            "Material1_Id": "Wood",
            "Material1_Count": 1
        },
        "Assignments": [
            {
                "WorkSuitability": "Handcraft",
                "WorkSuitabilityRank": 1,
                "bPlayerWorkable": true,
                "bBaseCampWorkerWorkable": true,
                "WorkType": "CommonTemp",
                "WorkActionType": "CommonWork",
                "WorkerMaxNum": 0,
                "AffectSanityValue": -0.15,
                "AffectFullStomachValue": 1.0
            }
        ],
        "Technology": {
            "UnlockBuildObjects": [
                "TUTORIAL_NewCraftingStation"
            ],
            "IconName": "WorkBench",
            "IsBossTechnology": false,
            "Name": "Tutorial Workbench",
            "Description": "This is the description that shows in the Technology tab.",
            "LevelCap": 2,
            "Cost": 1
        }
    }
}

IconTexture I'm using the WorkBench icon as I don't have a custom icon, but if you have a custom icon, you can use that instead.

MaterialType and MaterialSubType mostly determines damage modifiers.

DeteriorationDamage determines how much damage the building should take each tick when it's not inside Palbox range.

BuildingData

TypeA and TypeB most likely determines how the building functions internally, not sure on this one.

Rank is the same thing as TargetMaxRank we covered in Step 9 of Creating the Blueprint.

RequiredBuildWorkAmount is the amount of work needed to construct the building fully.

Material1_Id and Material1_Count determine the required materials to build the building. You can have up to 4 required materials Material2_Id, Materia2_Count, etc.

Assignments

Assignments contains an array of assignments for the building. This is typically one per building, but some buildings like farm crops require three. If you look at assignments in DT_MapObjectAssignData with FModel, you might notice that they have a certain number after the ID like _0. This is important for the assignments to function properly, but Pal Schema handles that for you when working with building mods, so what you see here is enough to make it work.

Technology

UnlockBuildObjects is an array of buildings to unlock with the Technology.

IconName pulls the Icon Texture from DT_BuildObjectIconDataTable.

IsBossTechnology determines if it should require Ancient Tech Points to unlock.

LevelCap is the required level for unlocking the Technology.

Cost is the cost in Technology Points.

Anything else not listed here is either self explanatory or unknown. If you have information regarding the functionality of the unlisted properties, please post in the Palworld Modding discord and I will add them here.

Test Item and Recipe

Next, we obviously want some way of testing that the new crafting station works as we would expect so we'll create a new item with a Rank of 5.

Navigate back to the NewCraftingStation folder and create an items folder and then a sword.json file inside the items folder.
Open sword.json and copy-paste the following inside it:

{
    "Tutorial_Sword_5": {
        "Name": "Legendary Sword",
        "Description": "<itemName id=|Sword|/> for close-range combat.\r\nThe blade is extremely sharp! Mightier than a pen, for sure.\r\nRequires <mapObjectName id=|TUTORIAL_NewCraftingStation|/> to craft.",
        "SneakAttackRate": 1.0,
        "AttackValue": 1000,
        "ID": "Tutorial_Sword_5",
        "IconTexture": "/Game/Others/InventoryItemIcon/Texture/T_itemicon_Weapon_Sword.T_itemicon_Weapon_Sword",
        "Type": "Weapon",
        "TypeA": "Weapon",
        "TypeB": "WeaponMelee",
        "Rarity": 4,
        "Rank": 5,
        "Price": 10440,
        "MaxStackCount": 1,
        "SortID": 140,
        "bNotConsumed": true,
        "actorClass": "/Game/Pal/Blueprint/Weapon/BP_Sword.BP_Sword_C",
        "Weight": 10.0,
        "Durability": 2500.0,
        "Recipe": {
            "Product_Count": 1,
            "WorkAmount": 500.0,
            "Material1_Count": 5,
            "Material1_Id": "Stone"
        }
    }
}

We'll be creating a Legendary variant of the Sword that can be crafted only at our new Tutorial Workbench since we specified Rank of 5 in our Sword's data and our Workbench allows crafting items with a Rank of 5 or lower.

Notice the <mapObjectName id=|TUTORIAL_NewCraftingStation|/>, the game's tooltip system will automatically grab the appropriate localization for our Workbench and it should display "Tutorial Workbench" in the description of our Sword.