quick cocos2d-x StateMachine 初体验

实现游戏中人物的几个状态转化，分别是：站立，行走，跳跃 三个状态。

状态转化图：

基本按照quick官方的sample实现了。现在贴下自己的代码：

local StateMachineScene = class("StateMachineScene", function()
    return display.newScene("StateMachineScene")
end)

function StateMachineScene:ctor()
    self.fsm_ = {}
    cc.GameObject.extend(self.fsm_):addComponent("components.behavior.StateMachine"):exportMethods()
    self.fsm_:setupState({
        events = {
            {name = "start", from = "none",   to = "stand" },
            {name = "stand_jump",  from = "stand",  to = "jump"},
            {name = "jump_stand", from = "jump",  to = "stand"},
            {name = "stand_walk", from = "stand", to = "walk"},
            {name = "walk_stand",  from = "walk",    to = "stand"},
            {name = "walk_jump", from = "walk",    to = "jump" }
        },

        callbacks = {
            onbeforestart = function(event) print("[FSM] STARTING UP") end,
            onstart       = function(event) print("[FSM] READY") end,
            onbeforestand_jump  = function(event) print("[FSM] START   EVENT: stand_jump!", true) end,
            onbeforejump_stand = function(event) print("[FSM] START   EVENT: jump_stand!", true) end,
            onbeforestand_walk  = function(event) print("[FSM] START   EVENT: stand_walk!",  true) end,
            onbeforewalk_stand = function(event) print("[FSM] START   EVENT: walk_stand!", true) end,
            onbeforewalk_jump = function(event) print("[FSM] START   EVENT: walk_jump!", true) end,
            onstand_jump        = function(event) print("[FSM] FINISH  EVENT: stand_jump!") end,
            onjump_stand       = function(event) print("[FSM] FINISH  EVENT: jump_stand!") end,
            onstand_walk        = function(event) print("[FSM] FINISH  EVENT: stand_walk!") end,
            onwalk_stand       = function(event) print("[FSM] FINISH  EVENT: walk_stand!") end,
            onwalk_jump      = function(event) print("[FSM] FINISH  EVENT: walk_jump!") end,
            onleavestand  = function(event) print("[FSM] LEAVE   STATE: stand") end,
            onleavewalk = function(event) print("[FSM] LEAVE   STATE: walk") end,
            onleavejump    = function(event) print("[FSM] LEAVE   STATE: jump") end,
            onstand       = function(event) print("[FSM] ENTER   STATE: stand") self:ChangeTouchEnabled() end,
            onwalk      = function(event) print("[FSM] ENTER   STATE: walk") self:ChangeTouchEnabled() end,
            onjump         = function(event) print("[FSM] ENTER   STATE: jump") self:ChangeTouchEnabled() end,
            onchangestate = function(event) print("[FSM] CHANGED STATE: " .. event.from .. " to " .. event.to) end
        }
    })
end

function StateMachineScene:onEnter()
    self.ttf1 = ui.newTTFLabelMenuItem({
        text = "walk_jump",
        size = 14,
        x = 100,
        y = 80,
        listener = function(event)
            self.fsm_:doEvent("walk_jump")
        end
    })

    self.ttf2 = ui.newTTFLabelMenuItem({
        text = "walk_stand",
        size = 14,
        x = 200,
        y = 80,
        listener = function(event)
            self.fsm_:doEvent("walk_stand")
        end
    })

    self.ttf3 = ui.newTTFLabelMenuItem({
        text = "stand_walk",
        size = 14,
        x = 300,
        y = 80,
        listener = function(event)
            self.fsm_:doEvent("stand_walk")
        end
    })

    self.ttf4 = ui.newTTFLabelMenuItem({
        text = "jump_stand",
        size = 14,
        x = 400,
        y = 80,
        listener = function(event)
            self.fsm_:doEvent("jump_stand")
        end
    })

    self.ttf5 = ui.newTTFLabelMenuItem({
        text = "stand_jump",
        size = 14,
        x = 400,
        y = 180,
        listener = function(event)
            self.fsm_:doEvent("stand_jump")
        end
    })

    self:addChild(ui.newMenu({self.ttf1, self.ttf2, self.ttf3, self.ttf4, self.ttf5}))

    self.fsm_:doEvent("start")
end


function StateMachineScene:ChangeTouchEnabled()
    self.ttf1:setEnabled(self.fsm_:canDoEvent("walk_jump"))
    self.ttf2:setEnabled(self.fsm_:canDoEvent("walk_stand"))
    self.ttf3:setEnabled(self.fsm_:canDoEvent("stand_walk"))
    self.ttf4:setEnabled(self.fsm_:canDoEvent("jump_stand"))
    self.ttf5:setEnabled(self.fsm_:canDoEvent("stand_jump"))
end

return StateMachineScene

记录一下。留着以后自己使用。（上述代码，贴进player中就可以运行查看状态机的状态控制、流程走向了）

网上有几篇不错的讲quick状态机的文章。mark下：

http://cn.cocos2d-x.org/tutorial/show?id=1542

http://my.oschina.net/u/223340/blog/323464