Breeding

Breeding and Mutations

Beyond tuning traits, crops can produce new strains. Breeding is data-driven: a datapack breeding entry names two parent species and the child species they can yield.

The breeding tree

Breeding entries live in data/neroagriculture/neroagriculture/breeding/<name>.json:

{
  "parent_a": "neroagriculture:food/earth_grain_loaf",
  "parent_b": "neroagriculture:food/earth_sunfruit",
  "child": "neroagriculture:food/greenxertz_driftmelon",
  "research": "nerolandcore:some_gate"
}

The optional research field ties a breed to the Research Bench discovery tree — until that milestone is met, the pair will not produce its child. Built-in entries ship with the mod and can be added to or replaced by datapacks.

Breeding never bypasses progression. A bred child seed still has to satisfy its own tier, gate, environment and research rules to grow, and natural alien strains can never be a breeding child — those are found in the world, not created.

Mutations

When a cross succeeds it produces a child seed whose genetics are the spliced traits of both parents. With a configurable chance the child is also mutated — one trait raised a further step — using deterministic, server-authoritative, seeded maths bounded by the same per-trait and total caps. Mutation can never take a seed past its caps.

See also: Genetics, Pollination.