/// <summary>
/// 检查该后继Action 是否满足转换条件
/// </summary>
/// <param name="action"></param>
/// <returns></returns>
bool CheckTransform(FSMSubsequenceAction action)
{
if (_currentState.CheckContain(action._preconditions))
{
return(true);
}
return(false);
}
/// <summary>
/// 更新当前Action的所有后继Action
/// </summary>
/// <param name="action"></param>
/// <param name="tempAction"></param>
/// <param name="priority"></param>
void UpdateSubAction(FSMSubsequenceAction action, ref FSMSubsequenceAction tempAction)
{
action._action.Listen();
if (CheckTransform(action))
{
if (tempAction == null || tempAction._priority < action._priority)
{
tempAction = action;
}
}
}
/// <summary>
/// 添加Action 切换关系
/// </summary>
/// <param name="nowState">前一个状态</param>
/// <param name="nextState">下一个状态</param>
/// <param name="preconditions">过度条件</param>
/// <param name="priority">优先级</param>
public void AddRelation(E_ActionTYpe nowState, E_ActionTYpe nextState, FSMWorldState preconditions, int priority)
{
if (_actionSet.ContainsKey(nowState) && _actionSet.ContainsKey(nextState))
{
FSMSubsequenceAction subAction = new FSMSubsequenceAction(_actionSet[nextState], preconditions, priority);
if (!_nextActions.ContainsKey(nowState))
{
_nextActions.Add(nowState, new List <FSMSubsequenceAction>());
}
_nextActions[nowState].Add(subAction);
}
}
/// <summary>
/// 根据世界条件判断从当前Action 是否可以有过渡的Action 如果有就过渡
/// </summary>
void TryGotoNextAction()
{
if (!_nextActions.ContainsKey(_currentAction.GetActionType()))
{
return;
}
List <FSMSubsequenceAction> nextactions = _nextActions[_currentAction.GetActionType()];
FSMSubsequenceAction tempAction = null;
foreach (FSMSubsequenceAction sub in nextactions)
{
UpdateSubAction(sub, ref tempAction);
}
if (tempAction != null)
{
DeactiveAction(_currentAction);
_currentAction = null;
ActiveAction(tempAction._action);
_currentAction = tempAction._action;
}
}
