Sbx.crossover: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/sbx.bend as Sbx
Lines 234-255 of unified-nsga-iii@0.2.2.0/sbx.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/sbx.bend&start_line=234&end_line=255

import Base
import unified-nsga-iii@0.2.2.0/individual.bend as Ind
import unified-nsga-iii@0.2.2.0/bounds.bend as Bounds
import unified-nsga-iii@0.2.2.0/rng.bend as Rng
import unified-nsga-iii@0.2.2.0/util.bend as Util

def crossover(
  +op: Sbx,
  +p1: Ind.Individual,
  +p2: Ind.Individual,
  +box: Bounds.Box,
  rng: Rng.State
) -> Rng.State & Ind.Individual & Ind.Individual:
  +x1s = Ind.variables(p1)
  +x2s = Ind.variables(p2)
  +m = Bounds.n_obj(box)
  +prob = probability(op)
  draw_or_copy(
    eta(op),
    prob,
    x1s,
    x2s,
    box,
    rng,
    m,
    Bounds.n_var(box),
    Util.f32_is_zero(prob)
  )

Uses (12):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/bounds.bend&name=Box
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/bounds.bend&name=n_obj
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/bounds.bend&name=n_var
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/individual.bend&name=Individual
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/individual.bend&name=variables
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/rng.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/sbx.bend&name=Sbx
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/sbx.bend&name=draw_or_copy
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/sbx.bend&name=eta
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/sbx.bend&name=probability
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=f32_is_zero