def zone

minebender-game@1.0.0.0 · proof_gen.bend:70

import Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/game.bend as G

70# The zone a board of n mines keeps free around the first click.
71def zone(+w: Nat, +h: Nat, +n: Nat, +first: T.Pos) -> G.Zone:
72  G.Zone{first, Nat.is_le(Nat.add(n, 9n), Nat.mul(w, h))}