public Placement([NotNull] TilePlacement tilePlacement, [NotNull] MeeplePlacement meeplePlacement)
{
TilePlacement = tilePlacement;
MeeplePlacement = Option.Some(meeplePlacement);
}
public Placement([NotNull] TilePlacement tilePlacement)
{
TilePlacement = tilePlacement;
MeeplePlacement = Option.None <MeeplePlacement>();
}