public void SwapCards(Common.Card first, Common.Card second)
{
Contract.Requires(first != null);
Contract.Requires(second != null);
Contract.Requires(Contract.Exists(_cardGraphics.Keys, x => x == first));
Contract.Requires(Contract.Exists(_cardGraphics.Keys, x => x == second));
DevCard.SwapPositions(_cardGraphics[first], _cardGraphics[second]);
// Swap the drawing order as well so the new player card is not drawn above the other player cards.
var indexOfFirstCard = _drawingOrder.IndexOf(first);
var indexOfSecondCard = _drawingOrder.IndexOf(second);
_drawingOrder[indexOfFirstCard] = second;
_drawingOrder[indexOfSecondCard] = first;
}
/// <summary>
/// Adds a card to the middle for the current trick. The card will be drawn above any other cards in the middle.
/// </summary>
/// <param name="playerPosition">The position of the player who dealt the card.</param>
/// <param name="card">The card to be played.</param>
public void AddCardToMiddle(int playerPosition, Common.Card card)
{
var centerPosition = new Vector2(400, 180);
// Place the player cards in a circle around the middle
int xFactor = 0;
int yFactor = 0;
switch (playerPosition)
{
case 0:
xFactor = 0;
yFactor = 1;
break;
case 1:
xFactor = 1;
yFactor = 0;
break;
case 2:
xFactor = 0;
yFactor = -1;
break;
case 3:
xFactor = -1;
yFactor = 0;
break;
default:
Debug.Assert(false);
break;
}
var backTexture = _getBackTexture();
var frontTexture = _getFrontTexture();
var selectedTexture = _getSelectedTexture();
var font = _getFont();
var middleScaleFactor = .4f;
var cardHeight = backTexture.Height * middleScaleFactor;
var cardWidth = backTexture.Width * middleScaleFactor;
var xDistance = cardWidth * 0.8f / 2.0f;
var yDistance = cardHeight * 0.8f / 2.0f;
var cardPos = new Vector2(
centerPosition.X + (xDistance * xFactor),
centerPosition.Y + (yDistance * yFactor) + (cardHeight * 2.5f) // * 2.5f negates the card's internal origin offset
);
// Draw the card in the middle
_cardGraphics[card] = new DevCard(backTexture, frontTexture, selectedTexture, font)
{
Angle = 0,
Card = card,
IsCovered = false,
IsSelected = false,
Position = cardPos,
ScaleFactor = middleScaleFactor
};
_drawingOrder.Remove(card);
_drawingOrder.Add(card);
_middleCards.Add(card);
if (_clickableCards.Contains(card))
{
_clickableCards.Remove(card);
}
}
