protected virtual List <Card> DrawCards(int count)
{
var ret = new List <Card>();
int remainingCount = count;
if (DrawPile.Count < remainingCount)
{
// draw the whole pile
ret.AddRange(DrawPile.DrawAll());
// shift all the cards from the discard into the draw pile except the top one
// wild cards become discolored during this
var discardTop = DiscardPile.Draw();
DrawPile.AddRange(DiscardPile.DrawAll().Select(c => c.Value.IsWild() ? new Card(CardColor.Wild, c.Value) : c));
DiscardPile.Push(discardTop);
// shuffle the draw pile
DrawPile.Shuffle(Randomizer);
}
remainingCount = Math.Max(count - ret.Count, 0);
if (DrawPile.Count < remainingCount)
{
// oh well, take what's left
ret.AddRange(DrawPile.DrawAll());
}
else
{
// take only what we need
ret.AddRange(DrawPile.DrawMany(remainingCount));
}
return(ret);
}
protected virtual void PrepareRegularPiles()
{
DrawPile.Clear();
DiscardPile.Clear();
// of each color:
foreach (var color in RegularColors)
{
// one zero
DrawPile.Push(new Card(color, CardValue.Zero));
// two of:
for (int i = 0; i < 2; ++i)
{
// each number except zero
for (CardValue value = CardValue.One; value <= CardValue.Nine; ++value)
{
DrawPile.Push(new Card(color, value));
}
// skip, reverse draw-two
DrawPile.Push(new Card(color, CardValue.Skip));
DrawPile.Push(new Card(color, CardValue.Reverse));
DrawPile.Push(new Card(color, CardValue.DrawTwo));
}
}
// four wilds, four wild-draw-fours
for (int i = 0; i < 4; ++i)
{
DrawPile.Push(new Card(CardColor.Wild, CardValue.Wild));
DrawPile.Push(new Card(CardColor.Wild, CardValue.WildDrawFour));
}
// assert the validity of the piles
AssertPileValidity();
}