def lj_head
import bend-prot@0.1.0.0/force.bend as Forceimport Base
import bend-prot@0.1.0.0/geom.bend as G
import bend-prot@0.1.0.0/protein.bend as P
49def lj_head(+pi: G.Vec3, +eps: F32, +sig2: F32, +c2: F32, h: P.Atom) -> F32:
50 match h:
51 case P.Atom{serial, elem, +pj}:
52 lj_pair_at(pi, pj, eps, sig2, c2)