def inv_assist.go

minebender-game@1.0.0.0 · proof_inv.bend:652

import Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/board.bend as B
import minebender-game@1.0.0.0/game.bend as G
import minebender-game@1.0.0.0/LAWS.bend as L
import minebender-game@1.0.0.0/solver.bend as S

652def inv_assist.go(+w: Nat, +h: Nat, +layout: T.Grid(Bool), +shown: T.Grid(Bool), +flags: List<&2, T.Pos>,
653  +status: T.Status, +sh: {B.shaped(Bool, w, h, shown) == True{} : Bool},
654  +won: {L.is_won(status) == G.all_safe(w, h, layout, shown) : Bool},
655  +cm: {calm(status, w, h, layout, shown) == True{} : Bool},
656  +cl: {closed(w, h, layout, shown) == True{} : Bool}, +c: Bool, ce: {G.is_playing(status) == c : Bool}, +k: Nat) ->
657  Inv(w, h, layout, G.assist.go(c, G.Game{w, h, layout, shown, flags, status}, k)):
658  match c:
659    case False{}:
660      ({==}, ({==}, ({==}, (sh, (won, (cm, cl))))))
661    case True{}:
662      +g0 = {G.Game{w, h, layout, shown, flags, status} : G.Game}
663      inv_assist.pick(w, h, layout, shown, flags, status, sh, won, cm, cl, playing_is(status, ce),
664        S.solve(G.knowledge(g0)), k)