law assist_stuck

minebender-game@1.0.0.0 · LAWS.bend:476

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

476# LAW: "Pressing the assist when stuck reveals a safe cell."
477law assist_stuck:
478  for w: Nat
479  for h: Nat
480  for layout: T.Grid(Bool)
481  for shape: {shaped(Bool, w, h, layout) == True{} : Bool}
482  for g: G.Game
483  for r: Reachable(w, h, layout, g)
484  for playing: {G.status(g) == T.Playing{} : T.Status}
485  for stuck: Stuck(G.knowledge(g))
486  for k: Nat
487  exs p: T.Pos
488  {mine(layout, p) == False{} : Bool} &
489  {hidden(G.knowledge(g), p) == True{} : Bool} &
490  {G.step(g, T.Assist{k}) == G.open(g, p) : G.Game}