hbm:coltan_deposit
Places ore veins in narrowing bands around a seed-derived centre.
Fields
| Field | Meaning and default | Range |
|---|---|---|
base_range | Placement reach for the first band; later bands divide it by their index. | \texttt{i32} |
min_y | Lowest sampled Y. | \texttt{i32} |
outer_attempts | Number of outer placement attempts per chunk; use a positive value to place veins. | \texttt{i32} |
rings | Number of narrowing placement bands per attempt; use a positive value. | \texttt{i32} |
spread | Scale of the seed-derived deposit centre. | finite \texttt{f64} |
vein | Vanilla ore configuration placed by an accepted attempt. | |
y_range | Height of the sampled Y interval. | [1, \texttt{i32::MAX}] |
The top-level type selects this feature; the remaining fields belong beside it.
Example
Source path: data/hbm/worldgen/feature/deposit_coltan.json
{
"type": "hbm:coltan_deposit",
"base_range": 750,
"min_y": 15,
"outer_attempts": 2,
"rings": 5,
"spread": 1500.0,
"vein": {
"discard_chance_on_air_exposure": 0.0,
"size": 4,
"targets": [
{
"state": "hbm:ore_coltan",
"target": {
"predicate_type": "minecraft:tag_match",
"tag": "minecraft:stone_ore_replaceables"
}
}
]
},
"y_range": 25
}hbm:windowed_ore
Places vanilla ore veins inside a seed-derived square window.
hbm:nether_surface
Places a block on exposed netherrack within a sampled depth band.
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