//returns true if play valid, false if play impossible (must take pile instead)
//optionally returns a pile that the player MUST take.
public bool TryPlayCard(Card c, Player p, out Pile takePile)
{
takePile = null;
//check if valid
if (!p.Hand.Cards.Contains(c))
{
throw new InvalidOperationException($"Player \"{p}\" does not have card \"{c}\".");
}
p.Hand.Cards.Remove(c);
//Player has now played the card
EventDispatcher.Broadcast(new PlayerCardEvent()
{
Player = p, Card = c
});
//find pile
var delta = 105;
Pile targetPile = null;
foreach (var pile in Piles)
{
var diff = c.Number - pile.Cards.Last().Number;
if (diff > 0 && diff < delta)
{
targetPile = pile;
delta = diff;
}
}
if (targetPile == null)
{
return(false);
}
else
{
try
{
targetPile.AddCard(c);
}
catch (InvalidOperationException)
{
takePile = targetPile;
return(false);
}
}
return(true);
}
//Take a pile for a player
public void TakePile(Card c, Player pl, Pile pi)
{
// Notify others before the pile is actually taken
EventDispatcher.Broadcast(new PlayerTookPileEvent()
{
NewCard = c, Player = pl, Pile = pi
});
var takenPile = pi.ReplacePile(c);
foreach (var card in takenPile)
{
pl.Take(card);
}
}