[1.16.4] help with container items

[Glados1235]

hello! I am new to Minecraft modding and I'm modding for 1.16.4 I want to create an item that doesn't get used and takes damage during crafting (like ic2's hammer or cutters)

this is the first mod I'm trying to make to learn and I prefer to learn through examples

here is what I have for the item in question LEGO_MOLD or lego_mold

 

my Item Init class

https://pastebin.com/X6pjkUEi

 

the container item class I think is correct? (followed a tutorial kiiinda know how it works but not really)

https://pastebin.com/Jpwerbgy

 

and the recipe I want to affect

https://pastebin.com/dYPCxdjf

 

I know the container class is what's needed but how do I make the LEGO_MOLD the item it's affecting?

like I said I'm brand new to this and don't know much java so examples would be super helpful!

and it this is in the wrong place please tell me i dont post on forms much thanks!

Edited September 25, 2021 by Glados1235
forgot the version in the title

[Glados1235]

6 minutes ago, diesieben07 said:

The lego_mold class is never used in the code you posted.

i know its not thats why im asking how do i do that like i said i know its the thing i need to use but how to i apply that lego_mold class to a item like the lego mold item

[Glados1235]

41 minutes ago, diesieben07 said:

Do you know basic Java?

sort of i mostly know basic c# or unity code i came here to ask for help as i found barely anything on the topic of the post and i learn through examples as alot of stuff just wont make sense to my brain 

[Glados1235]

11 hours ago, diesieben07 said:

Then you should know how to make an instance of a class and how inheritance works...

I don't that is why I'm asking for help here as there are no tutorials or examples anywhere that help with what I'm trying to do I've been trying for a few days now to figure it out and I cant I don't know what I'm supposed to do as no one wants to help

[Draco18s]

Line 20 is wrong.

[Glados1235]

2 hours ago, Draco18s said:

Line 20 is wrong.

i had a feeling but i don't know how to properly fix it i know there is the .containerItem() function that i can add to the item but no matter what way i try i does not work

Edited September 26, 2021 by Glados1235
spelling

[Draco18s]

Look at line 20 very carefully.
Think about what D7 said in his first reply.

Edited September 26, 2021 by Draco18s

[Glados1235]

okay so i sorta got it

i added 

public static final LegoMold legoMold = new LegoMold();

and changed line 20 to

	public static final RegistryObject<Item> LEGO_MOLD = ITEMS.register("lego_mold",
			() -> new Item(new Item.Properties().group(LegoModItemGroup.LEGO_MOD).maxStackSize(1).containerItem(legoMold)));

and now it works but instead of giving me back the mold but damaged it just gives me a air block so i assume i need to tell it what item to give?

[Luis_ST]

4 hours ago, Glados1235 said:

it just gives me a air block so i assume i need to tell it what item to give?

thats because ItemStack#shrink reduce the count of the Item
and 1 - 1 = 0, and if the item has a number of 0 it is removed (replaced by air)