/// <summary>
/// 移动到下一节点
/// </summary>
/// <param name="next">下一节点</param>
/// <param name="canReturnBack">是否可以回退</param>
/// <returns></returns>
public SimpleStatusMachine <T> Next(T next, bool canReturnBack)
{
var newNode = new Helper(next, canReturnBack);
if (!newNode.Equals(this.link.Current))
{
var pr = new DoubleTrackNode <Helper>(newNode);
pr.PreNode = this.currentNode;
this.currentNode.NextNode = pr;
this.currentNode = pr;
}
return(this);
}
/// <summary>
/// Initializes a new instance of the <see cref="DoubleTrackNode{T}"/> class.
/// </summary>
/// <param name="item">节点对象</param>
/// <param name="prev">前一节</param>
/// <param name="next">下一节</param>
public DoubleTrackNode(T item, DoubleTrackNode <T> prev, DoubleTrackNode <T> next)
{
this.Current = item;
this.PreNode = prev;
this.NextNode = next;
}
/// <summary>
/// Initializes a new instance of the <see cref="SimpleStatusMachine{T}"/> class.
/// </summary>
/// <param name="root">第一状态.</param>
public SimpleStatusMachine(T root)
{
this.link = new DoubleTrackNode <Helper>(new Helper(root, true));
this.currentNode = this.link;
}
