Fill layer feature

The fill_layer feature can be used to fill an entire 16x16 chunk area with a single block.

Configuration

The following configuration options are available:

Option	Type	Description
height	An int. (Range limit in Json is \([0;4064 ]\))	The height of the layer to fill (starting at the min build height).
state	A BlockState	The block state to use for the layer.

In code, the LayerConfiguration class is used to configure the feature.

Example

As an example, here's a configured- and placed feature to add a layer of grass on top of a default flat world.

KotlinJson

ConfiguredFeatures.kt

@Init(stage = InitStage.POST_PACK_PRE_WORLD)
@OptIn(ExperimentalWorldGen::class)
object ConfiguredFeatures : FeatureRegistry by ExampleAddon.registry {

    val FILL_LAYER_GRASS = registerConfiguredFeature(
        "fill_layer_grass",
        Feature.FILL_LAYER,
        LayerConfiguration(4, Blocks.GRASS.defaultBlockState()) // (1)!
    )

}

1. Add a layer of grass at height 4.

PlacedFeatures.kt

@OptIn(ExperimentalWorldGen::class)
@Init(stage = InitStage.POST_PACK_PRE_WORLD)
object PlacedFeatures : FeatureRegistry by ExampleAddon.registry {

    val FILL_LAYER_GRASS = placedFeature("fill_layer_grass", ConfiguredFeatures.FILL_LAYER_GRASS).register()

}

configured_feature/fill_layer_grass.json

{
  "height": 4,
  "state": {
    "Name": "minecraft:grass"
  }
}

placed_feature/fill_layer_grass.json

{
  "feature": "minecraft:fill_layer_grass",
  "placement": []
}