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一个扑克游戏的诞生---扑克牌及相关类代码兼谈异常（下）
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file: CardCollection.cs
using System;
using System.Diagnostics ;
namespace Bigeagle.Games.Cards
{
/// <summary>
/// 牌集合
/// <br>Author: bigeagle</br>
/// <br>Date: 2002/4/19</br>
/// <br>History: 2002/4/19</br>
/// </summary>
public class CardCollection : System.Collections.ICollection
{
#region 成员变量
/// <summary>
/// 牌数组
/// </summary>
protected Card[] m_arrCards ;
/// <summary>
/// 大小
/// </summary>
protected int m_intSize ;
/// <summary>
/// 最后一个有效元素的索引
/// </summary>
protected int m_intCapacity ;
#endregion
#region 构造函数
/// <summary>
/// 构造函数
/// </summary>
public CardCollection()
{
this.m_arrCards = new Card[16] ;
this.m_intCapacity = -1 ;
this.m_intSize = 0 ;
}
#endregion
#region 类方法
/// <summary>
/// 重新设置容量
/// </summary>
/// <param name="capacity">要设置的容量</param>
private void SetCapacity(int capacity)
{
Card[] cards = new Card[capacity];
if (this.m_intSize > 0)
{
if (this.m_intCapacity > 0)
{
Array.Copy(this.m_arrCards , 0 , cards , 0, this.m_intSize) ;
}
// else
// {
// Array.Copy(this.m_arrCards , 0 , cards , 0, this.m_arrCards.Length);
// Array.Copy(this.m_arrCards , 0 , cards , this.m_arrCards.Length, this.m_intCapacity);
// }
}
//this.m_intSize = capacity ;
this.m_arrCards = cards ;
//this.m_intCapacity = this.m_intSize -1 ;
}
/// <summary>
/// 取得元素
/// </summary>
/// <param name="i"></param>
/// <returns></returns>
internal Object GetElement(int i)
{
if(i < 0 || i >= this.m_intSize)
{
throw(new IndexOutOfRangeException()) ;
}
return this.m_arrCards[i] ;
}
/// <summary>
/// 添加一个元素
/// </summary>
/// <param name="a_objCard"></param>
public void Add(Card a_objCard)
{
foreach(Card c in this.m_arrCards)
{
if(c != null && c.Equals(a_objCard))
{
throw(new CardAlreadyExistsException(c , "牌已经存在")) ;
}
}
if (this.m_intCapacity == this.m_arrCards.Length -1)
{
int newcapacity = this.m_arrCards.Length + 16 ;
SetCapacity(newcapacity);
}
this.m_intCapacity ++ ;
this.m_arrCards[this.m_intCapacity] = a_objCard;
this.m_intSize ++ ;
//this.m_intCapacity ++ ;
//this.m_intSize ++ ;
}
/// <summary>
/// 删除元素
/// </summary>
/// <param name="a_objCard">要删除的Card对象</param>
public void Remove(Card a_objCard)
{
Card[] cards = new Card[this.m_arrCards.Length] ;
int intIndex = -1 ;
for(int i = 0 ; i < this.m_arrCards.Length ; i ++)
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