public override void PartTwo()
{
var dirs = Pos.Origin.Around().ToArray();
var game = new GameOfLife <Pos, int>(Empty, Taken);
game.WithNeighborFunction(pos => dirs.ToTrace(pos, game, (_, i) => i > Floor))
.WithLivingDeadRules(i => i >= 5, i => i == 0);
foreach (var(pos, c) in Input.As2D())
{
game[pos] = Map(c);
}
game.StepUntil(i => i == 0);
WriteLn(game.CountValues(Taken));
}
public static int CountState <TLoc, TState>(this GameOfLife <TLoc, TState> game, TState state)
{
return(game.CountValues(state));
}
public static int CountActive <T>(this GameOfLife <T, bool> game)
{
return(game.CountValues(true));
}
public override void PartOne()
{
Step(2);
WriteLn(Game.CountValues(true));
}