public void Update()
{
if (root != null)
{
root.Run(); // 每帧调用行为树根节点，行为树入口
}
}
public override ResultType Execute()
{
List <int> randomList = GetRandom(nodeChildList.Count);
int index = -1;
if (lastRunningNode != null)
{
index = lastRunningNode.NodeIndex;
}
lastRunningNode = null;
ResultType resultType = ResultType.Fail;
while ((randomList.Count > 0))
{
if (index < 0)
{
index = randomList[randomList.Count - 1];
randomList.RemoveAt(randomList.Count - 1);
}
NodeRoot nodeRoot = nodeChildList[index];
index = -1;
resultType = nodeRoot.Run();
if (resultType == ResultType.Fail)
{
continue;
}
if (resultType == ResultType.Success)
{
break;
}
if (resultType == ResultType.Running)
{
lastRunningNode = nodeRoot;
break;
}
}
return(resultType);
}
