function Player:addStateMachine()    self.fsm_ = {}    cc.GameObject.extend(self.fsm_)    :addComponent("components.behavior.StateMachine")    :exportMethods()    self.fsm_:setupState({        -- 初始状态        initial = "idle",        -- 事件和状态转换        events = {            -- t1:clickScreen; t2:clickEnemy; t3:beKilled; t4:stop            {name = "clickScreen", from = {
   "idle", "attack"},   to = "walk" },            {name = "clickEnemy",  from = {
   "idle", "walk"},  to = "attack"},            {name = "beKilled", from = {
   "idle", "walk", "attack", "hit"},  to = "dead"},            {name = "beHit", from = {
   "idle", "walk", "attack"}, to = "hit"},            {name = "stop", from = {
   "walk", "attack", "hit"}, to = "idle"},        },        -- 状态转变后的回调        callbacks = {            onidle = function (event) self:idle() end,            onattack = function (event) self:attackEnemy() end,            onhit = function (event) self:hit() end,            ondead = function (event) self:dead() end        },    })end  那我发一个clickScene的事件，它判断如果是idle attack状态的话就执行walk状态 跟if else一样 只是系统帮你写了if else了

 用事件来驱动的状态迁移