public bool ConflictWith(StateTransition trans)
{
ST_Condition cond1 = _st_cond;
ST_Condition cond2 = trans._st_cond;
// 两个condition都不是fullpass，那么没有冲突的可能
bool atleast_1_fullpass = (cond1 == ST_Condition.FullPass || cond2 == ST_Condition.FullPass);
List <StateNodeBase> from_list_1 = GetFromNodes();
List <StateNodeBase> from_list_2 = trans.GetFromNodes();
StateNodeBase to_1 = GetToNode();
StateNodeBase to_2 = trans.GetToNode();
int action_1 = _action;
int action_2 = trans._action;
// 两层循环判断冲突
foreach (var from_i in from_list_1)
{
foreach (var from_j in from_list_2)
{
if (from_i == from_j)
{
// action一样,并且两个condition中至少有一个fullpass
if (action_1 == action_2 && atleast_1_fullpass)
{
LogManager.Warning("transition conflict, from[{0}] and action[{1}] to node[{2},{3}] duplicate!", from_i, action_1, to_1, to_2);
return(true);
}
}
}
}
return(false);
}
//from + action是【因】
//to 是【果】
public ST_Single(StateNodeBase from_node, StateNodeBase to_node, int action, ST_Condition st_cond = null)
{
LogManager.Assert(from_node != null, "from node is null");
LogManager.Assert(to_node != null, "to node is null");
LogManager.Assert(action > 0, "action <= 0");
LogManager.Assert(!string.Equals(from_node._name, to_node._name), string.Format("same type of node: [{0}]", from_node._name));
_from_node = from_node;
_to_node = to_node;
_action = action;
_st_cond = st_cond ?? ST_Condition.FullPass;
}