Need help: custom enchantments?

Plugins Plugin Development
1

Hello everyone,

I just started learning Sponge, and I wondered how I could make my own, custom, enchantments (as an excercise).
With a custom enchantment I mean something not in Minecraft Vanilla (like vampire or something).

I have searched for a while, without result.

Is it possible? And if so, how hard is it to make? Is there any example code I can see?

2

So a custom enchantment wouldn’t be able to be a literal custom enchantment. It would be a protocol hack to show the enchantment glow, with an edited lore. It’s totally possible, and you can see a plugin for an older version of Sponge here.

1 Like
3

No protocol hack really needed… Just have empty enchantment data attached

4

Soooo…

I only need to add lore? That seems easy.

I tried that today.
However, while trying to do that, I have come to a problem:

        @Listener
	public void onInteraction(InteractItemEvent event) {
		logger.warn("-- item --");
		
		ItemStack stack = event.getItemStack().createStack();
		logger.info("Stack: " + stack.toString());
		
		boolean supported = stack.supports(Keys.ITEM_DURABILITY);
		logger.info("durability support: " + supported);
		
		MutableBoundedValue<Integer> dur = stack.getValue(Keys.ITEM_DURABILITY).get();
		logger.info("durability: " + dur.get());
	}

This code keeps throwing java.util.NoSuchElementExceptions at the one to last line. I can’t seem to find out why. Does anyone know what I’m doing wrong?

5

Ah, I found a solution.

Apparently, the only thing obstructing me was my own infamiliarity with the API. I added some .isPresent() and it solved 80% of the issue.

1 Like
6

I’d recommend a hefty read of the docs.