[1.11] Changes to addEnchantmentType

[arlyon]

I'm in the process of making an axe-only enchantment, which means I have to append to EnumEnchantmentType

 

When calling EnumHelper.addEnchantmentType, a second parameter is needed. I saw on github that Lex make a commit on 16/11/16 that made some changes to the EnumHelper, which I don't quite understand. Previously you only needed to provide a string, now you need to provide a Predicate<Item> which is then passed on to addEnum. How do I use this? And more importantly what is it's purpose?

 

(Here's a link showing the changes the commit made to the file: https://www.diffchecker.com/ICRVepsf)

 

Thanks

[Animefan8888]

A predicate is a functional interface. It has one method a boolean, and i assume in this context it would be if the enchantment type can be applied to the item passed.

[arlyon]

Thanks for the reply. Here was the solution for anyone who has the same problem (and hasn't had any experience with Gauva):

 

private static Predicate<Item> axe_test = new Predicate<Item>() {
   @Override public boolean apply(Item item) {
        return item instanceof ItemAxe;
    }
};

private static EnumEnchantmentType AXE = EnumHelper.addEnchantmentType("AXE", axe_test);