CraftStation Tutorial 2: Nodes

This tutorial continues from CraftStation Tutorial 1: Resources and will guide you through setting up craft station nodes, creating test scenes, and implementing the crafting logic with scripts.

Prerequisites

Before starting this tutorial, make sure you have:

Completed CraftStation Tutorial 1: Resources
A CraftStationType resource created (Furnace)
Items and recipes set up from the previous tutorial

Setting Up Test Scenes

Step 6: Create a Furnace Scene

Create New Scene

Create a new scene with Node as root (name: “FurnaceTest”).
Add Scene Nodes
- CraftStation (name: “FurnaceStation”)
- Inventory (name: “InputInventory”)
- Inventory (name: “OutputInventory”)
Configure Inventories

Set both inventories:
- Database: Your InventoryDatabase
Configure Furnace Station

Set the CraftStation properties:
- Database: Your InventoryDatabase
- Type: Select the “Furnace” CraftStationType
- Input Inventories: Add InputInventory path
- Output Inventories: Add OutputInventory path
- Can Processing Craftings: Enabled
- Can Finish Craftings: Enabled

Step 7: Create a General Workbench Scene

Create Another Scene

Create a new scene (name: “WorkbenchTest”).
Add Same Nodes

Add the same node structure as the furnace scene.
Configure Workbench Station

Set the CraftStation properties the same as furnace, but: - Type: Leave this EMPTY (no station type)

Adding Control Scripts

Step 8: Script the Furnace Scene

Attach this script to the FurnaceTest root node:

extends Node


@onready var craft_station = $FurnaceStation
@onready var input_inventory = $InputInventory
@onready var output_inventory = $OutputInventory

func _ready():
   # Add iron ore
   input_inventory.add("iron_ore", 10)

   # Add coal (fuel)
   input_inventory.add("coal", 5)

   # Connect signals
   craft_station.on_crafted.connect(_on_craft_completed)

   # Print station info
   print("=== FURNACE STATION ===")
   print("Station Type: ", craft_station.type.name if craft_station.type else "None")
   print("Available recipes: ", craft_station.valid_recipes.size())

   # List available recipes
   for i in craft_station.valid_recipes.size():
      var recipe_index = craft_station.valid_recipes[i]
      var recipe = craft_station.database.recipes[recipe_index]
      var product_name = recipe.products[0].item_id if recipe.products.size() > 0 else "Unknown"
      print("Recipe ", i, ": ", product_name)

      # Check if we can craft it
      var can_craft = craft_station.can_craft(recipe)
      print("  Can craft: ", can_craft)



func _input(event):
   if event.is_action_pressed("ui_accept"):
      if craft_station.valid_recipes.size() > 0:
         print("Starting furnace smelting...")
         craft_station.craft(0)
      else:
         print("No recipes available!")


func _on_craft_completed(recipe_index: int):
   print("Smelting completed!")

   # Show output
   for i in output_inventory.stacks.size():
      var stack = output_inventory.stacks[i]
      if stack:
         print("Produced: ", stack.amount, "x ", stack.item_id)

Step 9: Script the Workbench Scene

Attach this script to the WorkbenchTest root node:

extends Node

@onready var craft_station = $WorkbenchStation
@onready var input_inventory = $InputInventory
@onready var output_inventory = $OutputInventory

func _ready():
   # Add test items
   input_inventory.add("wood", 30)

   # Connect signals
   craft_station.on_crafted.connect(_on_craft_completed)

   # Print station info
   print("=== WORKBENCH STATION ===")
   print("Station Type: ", craft_station.type.name if craft_station.type else "None")
   print("Available recipes: ", craft_station.valid_recipes.size())

   # List available recipes
   for i in craft_station.valid_recipes.size():
      var recipe_index = craft_station.valid_recipes[i]
      var recipe = craft_station.database.recipes[recipe_index]
      var product_name = recipe.products[0].item_id if recipe.products.size() > 0 else "Unknown"
      print("Recipe ", i, ": ", product_name)

      var can_craft = craft_station.can_craft(recipe)
      print("  Can craft: ", can_craft)

func _input(event):
   if event.is_action_pressed("ui_accept"):
      if craft_station.valid_recipes.size() > 0:
         print("Starting crafting...")
         craft_station.craft(1)
      else:
         print("No recipes available!")

func _on_craft_completed(recipe_index: int):
   print("Crafting completed!")

   # Show output
   for i in output_inventory.stacks.size():
      var stack = output_inventory.stacks[i]
      if stack:
         print("Produced: ", stack.amount, "x ", stack.item_id)

Testing Station Types

Step 10: Test the Filtering

Run the Furnace Scene

When you run the furnace scene, you should see: - Station Type: “Furnace” - Available recipes: 1 (only the iron smelting recipe) - The recipe should show “Iron Ingot” - Press Space to start smelting
Run the Workbench Scene

When you run the workbench scene, you should see: - Station Type: “None” - Available recipes: 1 (only the stick crafting recipe) - The recipe should show “Stick” - Press Space to start crafting
Verify Recipe Filtering

This demonstrates that: - Furnace stations only see furnace recipes - General stations only see general recipes - Station types successfully filter available recipes

Advanced Usage

Step 11: Dynamic Station Type Assignment

You can also assign station types in code:

func _ready():

    # Assign to station
    craft_station.type = "furnace"

Troubleshooting

No Recipes Available

If a station shows no available recipes:

Check that recipe station types match the craft station type
Verify both are using the same CraftStationType resource
Ensure recipes have the correct station type assigned

Wrong Recipes Showing

If the wrong recipes appear:

Double-check recipe station type assignments
Verify craft station type is set correctly
Remember: empty station type only matches other empty station types

Next Steps

Now that you understand how to set up craft station nodes and implement the basic crafting logic, you can continue to the next tutorial to learn how to create a complete UI for your crafting system.