/// <summary>
/// 交換兩個符號的位置 (可與集合外的符號做交換)
/// </summary>
/// <param name="src"></param>
/// <param name="dest"></param>
/// <returns></returns>
public bool Swap(NumberDisk src, NumberDisk dest)
{
int srcIdx = IndexOf(src);
if (srcIdx < 0)
{
return(false);
}
int destIdx = IndexOf(dest);
if (destIdx < 0)
{
_symbolDiskList [srcIdx] = dest;
}
else
{
_symbolDiskList.Swap(srcIdx, destIdx);
}
return(true);
}
/// <summary>
/// 刪除 符號
/// </summary>
/// <param name="symbol"></param>
/// <returns></returns>
public bool Remove(NumberDisk symbol)
{
return(_symbolDiskList.Remove(symbol));
}
public int IndexOf(NumberDisk symbol)
{
return(_symbolDiskList.IndexOf(symbol));
}
public Dispenser Insert(int index, NumberDisk symbol)
{
_symbolDiskList.Insert(index, symbol);
return(this);
}
/// <summary>
/// 加入符號至尾端
/// </summary>
/// <param name="symbol"></param>
/// <returns></returns>
public Dispenser Append(NumberDisk symbol)
{
_symbolDiskList.Add(symbol);
return(this);
}
