Block transport classes
Radiation diffusivity by block.
File: data/<namespace>/hbm/rad_diffusivity/<class>.json.
Example:
{
"blocks": [
"minecraft:water",
"minecraft:lava"
],
"value": 0.55
}Fields
| Field | Meaning and default | Range |
|---|---|---|
blocks | Block ID, block tag, or ID list; selects every state of each block. | |
value | Transport coefficient; unmapped blocks use 1.0. | [0.01, 1.50] |
Loading and overlap
Tag membership is resolved when the world opens. Reopen or restart after changing a referenced tag.
When classes overlap, the lowest non-neutral value wins. To change an existing classification, replace the original resource or adjust its block list.
Radiation-resistant blocks define pocket boundaries by block and state.
Continuous radiation sources
Block sources and emission rates.
Fallout transmutation
Fallout block replacement rules.
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