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WAILA

WAILA (What Am I Looking At) shows information about the Rebar block you are looking at:

WAILA example

By default, a block will simply display its name in WAILA:

Example block WAILA

Set custom WAILA text

You can set the WAILA text by adding a waila key to en.yml:

en.yml
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item:
  example_block:
    name: "Example Block"
    lore: |-
      <arrow> An example block
    waila: "Some new WAILA"

Custom WAILA language entry

Overriding getWaila

You can override getWaila to change all aspects of your block's WAILA:

ExampleBlock.java
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public class ExampleBlock extends RebarBlock {

    ...

    @Override
    public @Nullable WailaDisplay getWaila(@NotNull Player player) {
        return new WailaDisplay(
                getDefaultWailaTranslationKey(), // Text (use the default text - equivalent to not overriding `getWaila` at all)
                BossBar.Color.BLUE, // Color
                BossBar.Overlay.NOTCHED_12, // Style
                0.2F // Progress
        );
    }
}

Custom WAILA language entry

Placeholders

Just like with items, you can supply placeholders to the WAILA text in the form of RebarArguments:

ExampleBlock.java
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public class ExampleBlock extends RebarBlock {

    ...

    @Override
    public @Nullable WailaDisplay getWaila(@NotNull Player player) {
        return new WailaDisplay(
                getDefaultWailaTranslationKey().arguments(
                        RebarArgument.of("something", 666),
                        RebarArgument.of("another-thing", UnitFormat.MILLIBUCKETS.format(45))
                )
        );
    }
}
en.yml
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item:
  example_block:
    name: "Example Block"
    lore: |-
      <arrow> An example block
    waila: "Some new WAILA | %something% | %another-thing%"

Custom WAILA language entry