Листинг 1.11. Новый файл CardEngine.cs.
using System;
using System.Collections;
using System.Drawing;
namespace PocketJack
{
/// <summary>
/// Provides the behaviours required to manage and draw cards
/// </summary>
public class Card
{
/// <summary>
/// The number of the card, in the range 1 to 52
/// </summary>
public byte CardNo;
/// <summary>
/// Indicates if the card is to be drawn face up.
/// True by default.
/// </summary>
public bool FaceUp = true;
/// <summary>
/// The images of the cards. Stored for all the cards.
/// The image with number 0 is the
/// back pattern of the card
/// </summary>
static private Image[] cardImages = new Bitmap[53];
/// <summary>
/// The attribute to be used when drawing the card
/// to implement transpancy
/// </summary>
static public System.Drawing.Imaging.ImageAttributes
cardAttributes;
/// <summary>
/// Used when loading card images prior to drawing
/// </summary>
static private System.Reflection.Assembly execAssem;
/// <summary>
/// Sets up the color and attribute values.
/// </summary>
static Card()
{
cardAttributes =
new System.Drawing.Imaging.ImageAttributes();
cardAttributes.SetColorKey(Color.Green, Color.Green);
execAssem =
System.Reflection.Assembly.GetExecutingAssembly();
}
/// <summary>
/// Scores for each of the cards in a suit
/// </summary>
static private byte[] scores =
new byte[] { 11, //ace
2,3,4,5,6,7,8,9,10, //spot cards
10,10,10}; //jack, queen, king
/// <summary>
/// Picture information for each card in a suit
/// </summary>
static private bool[] isPicture =
new bool[] { false, //ace
false,false,false,false,false,false,
false,false,false, //spot cards
true,true,true}; //jack, queen, king
/// <summary>
/// Names of the suits, in the order that of the suits
/// in the number sequence
/// </summary>
static private string[] suitNames =
new string[] { "club", "diamond", "heart", "spade" };
/// <summary>
/// Names of individual cards, in the order of the cards
/// in a suit
/// </summary>
static private string[] valueNames =
new string[] {"Ace", "Deuce","Three","Four","Five","Six",
"Seven","Eight","Nine","Ten", "Jack","Queen","King" };
/// <summary>
/// Returns the value in points of a given card,
/// according to BlackJack rules
/// </summary>
public int BlackJackScore
{
get
{
return scores[(CardNo – 1) % 13];
}
}
/// <summary>
/// Returns true if the card is a picture
/// (i.e. jack, queen or king)
/// </summary>
public bool IsPicture
{
get
{
return isPicture[(CardNo – 1) % 13];
}
}
/// <summary>
/// Returns text of the suit of this card
/// </summary>
public string Suit
{
get
{
return suitNames[(CardNo – 1) / 13];
}
}
/// <summary>
/// Returns the text of the value of this card
/// </summary>
public string ValueName
{
get
{
return valueNames[(CardNo – 1) % 13];
}
}
/// <summary>
/// Returns true if this is a red card
/// </summary>
public bool Red
{
get
{
int suit = (CardNo – 1) / 13;
return ((suit == 1) || (suit == 2));
}
}
/// <summary>
/// Returns true if this is a black card
/// </summary>
public bool Black
{
get
{
return !Red;
}
}
/// <summary>
/// Returns an image which can be used to draw this card
/// </summary>
public Image CardImage
{
get
{
int