/// <summary>
/// https://adventofcode.com/2020/day/22#part2
/// </summary>
public static void Part2()
{
var game = CombatGame.Parse(Input.Get(22));
game.PlayRecursive();
Console.WriteLine(CombatGame.GetScore(game.Player1Deck) + CombatGame.GetScore(game.Player2Deck));
}
internal static RoundResult PlayGame(Deck p1Deck, Deck p2Deck, bool recursiveGame = false, bool calculateScore = false)
{
var game = new CombatGame(p1Deck, p2Deck, recursiveGame);
while (!game.GameIsOver)
{
game.PlayRound();
}
return(game.GetRoundResult(calculateScore));
}
public void MoveRecursive()
{
var p1 = Player1Deck.Dequeue();
var p2 = Player2Deck.Dequeue();
if (p1 <= Player1Deck.Count && p2 <= Player2Deck.Count)
{
var subGame = new CombatGame(new Queue <int>(Player1Deck.Take(p1)), new Queue <int>(Player2Deck.Take(p2)));
subGame.PlayRecursive();
if (!subGame.Player2Deck.Any())
{
Player1Deck.Enqueue(p1);
Player1Deck.Enqueue(p2);
}
else if (!subGame.Player1Deck.Any())
{
Player2Deck.Enqueue(p2);
Player2Deck.Enqueue(p1);
}
else
{
throw new NotImplementedException();
}
}
else
{
if (p1 > p2)
{
Player1Deck.Enqueue(p1);
Player1Deck.Enqueue(p2);
}
else if (p2 > p1)
{
Player2Deck.Enqueue(p2);
Player2Deck.Enqueue(p1);
}
else
{
throw new NotImplementedException();
}
}
}
