Topology.head_hit_nat: def of bend-prot@0.1.0.0
Import: import bend-prot@0.1.0.0/topology.bend as Topology
Lines 16-19 of bend-prot@0.1.0.0/topology.bend: https://jend.leeeet.dev/read.txt?path=bend-prot@0.1.0.0/topology.bend&start_line=16&end_line=19

import Base
import bend-prot@0.1.0.0/geom.bend as G
import bend-prot@0.1.0.0/protein.bend as P

def head_hit_nat(h: P.Atom, +qp: G.Vec3, +c2: F32) -> Nat:
  match h:
    case P.Atom{serial, elem, +pos}:
      hit_nat_go(F32.is_lt(G.Vec3.dist2(pos, qp), c2))

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/geom.bend&name=Vec3
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/geom.bend&name=Vec3.dist2
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/protein.bend&name=Atom
  https://jend.leeeet.dev/definition.txt?path=bend-prot@0.1.0.0/topology.bend&name=hit_nat_go