/// <summary>
/// 转换节点
/// </summary>
public void Transition(string nodeName)
{
if (string.IsNullOrEmpty(nodeName))
{
throw new ArgumentNullException();
}
IFsmNode node = GetNode(nodeName);
if (node == null)
{
MotionLog.Error($"Can not found node {nodeName}");
return;
}
// 检测转换关系
if (Graph != null)
{
if (Graph.CanTransition(_curNode.Name, node.Name) == false)
{
MotionLog.Error($"Can not transition {_curNode} to {node}");
return;
}
}
MotionLog.Log($"Transition {_curNode.Name} to {node.Name}");
_preNode = _curNode;
_curNode.OnExit();
_curNode = node;
_curNode.OnEnter();
}
/// <summary>
/// 添加一个流程节点
/// 注意：流程节点会按照添加的先后顺序执行
/// </summary>
public void AddNode(IFsmNode node)
{
_fsm.AddNode(node);
if (_nodeNames.Contains(node.Name) == false)
{
_nodeNames.Add(node.Name);
}
}
/// <summary>
/// 启动状态机
/// </summary>
/// <param name="entryNode">入口节点</param>
public void Run(string entryNode)
{
_curNode = GetNode(entryNode);
_preNode = GetNode(entryNode);
if (_curNode != null)
{
_curNode.OnEnter();
}
else
{
MotionLog.Error($"Not found entry node : {entryNode}");
}
}
/// <summary> 构造函数 </summary>
public StateTransition(IFsmNode from, IFsmNode to, MainFsm mainFsm, FsmBase fsmBelongTo = null)
{
if (from == to)
{
//Todo Error
return;
}
this._mainFsm = mainFsm;
this.fsmBelongTo = fsmBelongTo ?? mainFsm;
this.from = from;
this.to = to;
_conditionSet = new HashSet <Func <bool> >();
this.from.AddTransition(this);
}
/// <summary>
/// 加入一个节点
/// </summary>
public void AddNode(IFsmNode node)
{
if (node == null)
{
throw new ArgumentNullException();
}
if (_nodes.Contains(node) == false)
{
_nodes.Add(node);
}
else
{
MotionLog.Warning($"Node {node.Name} already existed");
}
}
public StateTransition TransitionFactoty(IFsmNode from, IFsmNode to)
{
return(new StateTransition(from, to, this, this));
}
