public static ElementsMatchGameState ConcealAllElementsAction(ElementsMatchGameState state) =>
state.With
(
elementStates: state.ElementStates.Values
.Select(x => x.With(concealed: true))
.ToDictionary(x => x.AtomicNumber).AsReadOnly()
);
public static ElementsMatchGameState RevealElementAction(ElementsMatchGameState state, RevealElementAction action) =>
state.With
(
elementStates: state.ElementStates.Values
.Select(x =>
x.AtomicNumber != action.AtomicNumber
? x
: x.With(concealed: false))
.ToDictionary(x => x.AtomicNumber).AsReadOnly()
);