// ------------------------------------------------------------------
// Desc:
// ------------------------------------------------------------------
public void CheckConditions()
{
// if we are in transtion, don't do anything
if (inTransition)
{
return;
}
//
for (int i = 0; i < currentStates.Count; ++i)
{
State activeChild = currentStates[i];
// NOTE: if parent transition triggerred, the child should always execute onExit transition
for (int j = 0; j < activeChild.transitionList.Count; ++j)
{
Transition transition = activeChild.transitionList[j];
if (transition.onCheck())
{
// exit states
transition.source.parent.ExitStates(transition.target, transition.source); // TODO: 这里应该不进行++i
// route happends here
if (transition.target.mode == Mode.Exclusive &&
transition.target.children.Count > 0)
{
State firstChild = transition.target.children[0];
if (firstChild.isRoute)
{
firstChild.CheckRoute(transition);
}
}
// transition on start
if (transition.onStart != null)
{
transition.onStart();
}
// set current transition
currentTransition = transition;
inTransition = true;
break;
}
}
if (inTransition == false)
{
activeChild.CheckConditions();
}
}
}
// ------------------------------------------------------------------
// Desc:
// ------------------------------------------------------------------
public void CheckRoute(Transition _parentTransition)
{
bool hasTransition = false;
for (int i = 0; i < transitionList.Count; ++i)
{
Transition transition = transitionList[i];
transition.Bridge(_parentTransition);
if (transition.onCheck())
{
parent.initState = transition.target;
hasTransition = true;
break;
}
}
if (hasTransition == false)
{
Debug.LogError("FSM error: route state must have transition");
}
}
