# leafia:oily_coal_overworld

Passes positions only in the Overworld.

The modifier keeps its input position when the generating level is `minecraft:overworld` and removes it elsewhere.

## Fields

| Field | Meaning and default |
| - | - |
| `type` | `leafia:oily_coal_overworld`. |

## Example

From `data/leafia/worldgen/placed_feature/ore_coal_oil.json`:

```json
{
  "feature": {"type": "minecraft:ore", "config": {"discard_chance_on_air_exposure": 0.0, "size": 48, "targets": [{"state": {"Name": "leafia:ore_coal_oil", "Properties": {"burning": "false"}}, "target": {"predicate_type": "minecraft:tag_match", "tag": "minecraft:base_stone_overworld"}}]}},
  "placement": [
    {"type": "leafia:oily_coal_overworld"},
    {"type": "minecraft:rarity_filter", "chance": 16},
    {"type": "minecraft:in_square"},
    {"type": "minecraft:height_range", "height": {"type": "minecraft:uniform", "min_inclusive": {"absolute": 32}, "max_inclusive": {"absolute": 63}}},
    {"type": "minecraft:biome"}
  ]
}
```