Custom enchantments with anvil recipies.

I have made a custom enchantment plugins, and I want my enchantments to work in an anvil. This includes combining books (IE Drain I + Drain I = Drain II) and booking books to weapons (IE Diamond Sword + Drain I = Diamond Sword with Drain I). I have been trying to achieve this with InventoryClickEvents, to no luck. Is there a way I can get the server to treat my enchantments how it would treat vanilla enchantments? If not, how do I use InventoryClickEvents to create custom anvil crafting recipes?

 

I do not know if there is a way to automatically make them work like vanilla enchants, but I would try to use PrepareAnvilEvent instead of InventoryClickEvent.

 

That event would be perfect, but it seems that in the game when I call .setResult() on that event, I can see the result, I just can't take the result out of the anvil.
1) How can I make it so players can take the result out of the anvil?
2) Is there a way I can use that event to set the XP cost?
3) That event doesn't trigger when I shift click things into the anvil, how do I fix that?

Edit: After doing some research, it appears XP cost is calculated on the client side so #2 isn't possible.

 

Try setting the result in the next game tick. Use a BukkitRunnable and just call runTask(plugin) on it.

 

If I do it like this, there is no result in the slot to take.
@EventHandler
public void onAnvilEvent(PrepareAnvilEvent e) {
new BukkitRunnable() {
@Override
public void run() {
e.setResult(new ItemStack(Material.OAK_WOOD));
}
}.runTask(BeefyPlugin.getInstance());
}

 

Try getting the AnvilInventory and setting the slot to the output instead of using the setResult() method on the event. Its likely that the setResult() method won't work on the next tick, while a reference to the AnvilInventory still might.

 

I can see the item again but still can't take it out of the results square. Starting to think I'm just going to have to code a custom anvil GUI...
Interestingly, if I type a custom name into the anvil I can take the result out... maybe this is a client side problem

 

Maybe you need to update the anvil inventory?

Can you show us your current code?

 

It's pretty much what you would expect. I'm just trying to make everything in the anvil craft wood as a test.

Code:

@EventHandler
   public void onAnvilEvent(PrepareAnvilEvent e) {
     new BukkitRunnable() {
       @Override
       public void run() {
         e.getInventory().setItem(2, (new ItemStack(Material.OAK_WOOD)));
       }
     }.runTask(BeefyPlugin.getInstance());
   }