[1.12.2]Recipe that uses durabilty of a shovel when crafted

[needle112]

Hello, I'm new to coding and modding and I'm need your help.

I'm trying to make simple recipe: shovel + gravel = flint and i get it working, but I wonder how to make that the shovel uses its durability when crafted.

I know that there is a post (http://www.minecraftforge.net/forum/topic/60481-112-creating-recipes-with-multiple-results/) which is something that I need, but I just not understand what is written there, so I need a bit more precision, I'll appreciate it. Thank you!

[Draco18s]

You need a custom IRecipe implementation (this will also require setting up a _factories.json file)

When you get to determineRemainingItems you leave the shovel (and damage it).

 

You can extend existing recipes and only override the single method.

[needle112]

25 minutes ago, Draco18s said:

You need a custom IRecipe implementation (this will also require setting up a _factories.json file)

When you get to determineRemainingItems you leave the shovel (and damage it).

 

You can extend existing recipes and only override the single method.

So, how to actually implement custom IRecipe or at least look at the non custom one? I tried to google but find nothing. I checked that _factories.json and created somewhat similar, but what exactly should be in that class? Sorry for stupid questions

{
    "<type>": {
        "<name>": "<fully qualified classname for the specified type>"
    }
}

[Draco18s]

57 minutes ago, needle112 said:

how to actually implement custom IRecipe

In Java. Its a class. 

[needle112]

20 minutes ago, Draco18s said:

In Java. Its a class. 

I understand that it is a class but what is should have in it?

[Draco18s]

It should either:

a) implement IRecipe (and implementing it will tell you exactly what methods you need because you'll get red lines and the auto-fix will create stub methods you will need to implement (write code for))

b) extend an existing implementation of IRecipe (and you will need to override one or more of those methods to do what you want, as I mentioned previously)

Edited March 1, 2019 by Draco18s

[needle112]

11 hours ago, Draco18s said:

It should either:

a) implement IRecipe (and implementing it will tell you exactly what methods you need because you'll get red lines and the auto-fix will create stub methods you will need to implement (write code for))

b) extend an existing implementation of IRecipe (and you will need to override one or more of those methods to do what you want, as I mentioned previously) 

As I understand I should parse  recipe Json to get ingredients and outputs and somehow change it but I don't know needed syntax and can't google it

I have that but still don't know what to do, sorry

public class JustRecipeFactory implements IRecipeFactory {

    @Override
    public IRecipe parse(JsonContext context, JsonObject json) {
        // TODO Auto-generated method stub
        //what should go here?
        
        return null;
    }
}

Edited March 2, 2019 by needle112

[Draco18s]

You need to parse the JSON.

See my example here:

https://github.com/Draco18s/ReasonableRealism/blob/1.12.1/src/main/java/com/draco18s/hardlib/api/recipes/RecipeToolMold.java#L248-L265

You're going to largely need to figure this out for yourself based on existing examples.