How do I make a crafting system?

Hi I has finishing the next update of my game and was wanting to do a crafting system like Terraria/Stardew Valley, but I'm struggling with making it work well

How it works: There is a button for the craftable item that allows you to get the item, but removing the materials for it.

The crafting system

The adding item function(working fine)

And I use three arrays: One to store each item's position at an array(has Name, ID, Quantity), other stores info about, like description, rarity, etc and the last one stores the recipes available

drive.google.com/file/d/1PmZMiwvX6nF7k-lxS1UAgxllbNObJY8M/view

Should be good dropbox.com/scl/fi/sckm4adgagc69qfujp872/game_edited-2.c3p

Help I can’t get the file, I have an account

and it doesn’t give me it.

Yes, it’s working

Try this out, I added extra checks if both items are the same and that you have at least 2 in the inventory dropbox.com/scl/fi/p307wlfbjdimapib5kc6p/game_edited-3.c3p

But if I delete this condition it will glitch for recipes that use 2 materials and still not working

Try this dropbox.com/scl/fi/qubh8uzy4gqviz1aclwbp/game_edited-4.c3p

For it to work just leave the 2nd item empty as I have done temporarily in the health potion recipe.

I have a last question, how do I check if the item can be crafted, so, for example, changes the alpha to 100 if I can't craft it, and 255 if I can?

I'll think on this, it would need some changes because currently your logic is to craft when clicked rather than know beforehand.