How does having two mods installed with a same item name work?

[Durtle02]

Hello, I was wondering how it works when two mods have an item, such as a copper ingot, and the crafting recipes work interchangeably. (Also while writing this I spelled "recipes" wrong and tried to do an Alt+Enter to fix it because I use NetBeans )

[Animefan8888]

Hello, I was wondering how it works when two mods have an item, such as a copper ingot, and the crafting recipes work interchangeably. (Also while writing this I spelled "recipes" wrong and tried to do an Alt+Enter to fix it because I use NetBeans )

They use the OreDictionary and I do the same thing but with the eclipse keybinding.

[Leviathan143]

As Animefan said, that is achieved by using the OreDictionary. Documentation on the OreDictionary can be found here.

[jeffryfisher]

There are two parts to the technique, and you can use either or both.

 

First you register your ingots, gems etc with the dictionary so that they become usable thereby. This will offer your items for use in other mods' recipes.

 

Second, you write recipes to use generic ingredients from the dictionary (employ dictionary methods), thus enabling other mods' items to work in your recipes.

 

Read the docs if you want to go either or both ways.

[Draco18s]

(You should do both, just to be 100% safe)