Cocos2d-x-lua学习点滴

Lua下的方法。自己项目经验，个人见解，不能确保正确。

Sprite:

local Light = CCSprite:create("light.png")

            Light:setPosition(ccp(300,300))

            Light:setScale(1)

            Light:setVisible(true)

            self.secondLevelMenuLayer:addChild(Light)

Button:

searchButton = Button:create()

searchButton:setScale(1.2)

    searchButton:setTouchEnabled(true)

    searchButton:loadTextures("button-search1.png","button-search2.png","button-search3.png") -- 3个""不可或缺。可nil。

    searchButton:setPosition(CCPoint(280,400))

    self.superView.secondLevelMenuLayer:addWidget(searchButton)

    searchButton:setEnabled(false)

Button的禁用状态。

在button不可触摸的时候设置图片灰色。

Button:setTouchEnable（false）

同一时候设置Button:setBright(false)

Fade效果

FadeIn->是从暗逐渐变亮

FadeOut->从亮逐渐变消失。

FadeTo->从亮逐渐变暗

local actionTime = 0.2

            local array = CCArray:create()

         

            array:addObject(CCFadeTo:create(0.2, 100))

            local action = CCSequence:create(array)

            self.LayerColor:runAction(action)

当前引擎UI界面不可实现此效果。

Sprite的旋转

local Light = CCSprite:create("light.png")            

            Light:setPosition(ccp(480,510))

            Light:setScale(0.8)

            Light:setVisible(true)

            L = CCRotateBy:create(5,360) --RotateTo角度360就没效果。有网帖

            Light:runAction(CCRepeatForever:create(L))

缩放效果

local ImageView_victory = self.secondLevelMenuLayer:getWidgetByName("ImageView_victory")

            local  array = CCArray:create()

            array:addObject(CCScaleBy:create(0.5,1.5))--參数为time。scale

            array:addObject(CCScaleTo:create(0.5,1))

            local action1 = CCSequence:create(array)

            ImageView_victory:runAction(action1)

UI界面分步载入的实现

local imgs = {} --创建数组

            imgs[1] = ImageView_victory



            local imgs0 = {}

            imgs0[1] = level

            imgs0[2] = shengwang

            imgs0[3] = gold



            local imgs1 = {}

            imgs1[1] = hero0

            imgs1[2] = hero1

            imgs1[3] = hero2

            imgs1[4] = hero3

            imgs1[5] = hero4



            local imgs2 = {}

            imgs2[1] = jingyantiao0

            imgs2[2] = jingyan0

            imgs2[3] = jingyantiao1

            imgs2[4] = jingyan1

            imgs2[5] = jingyantiao2

            imgs2[6] = jingyan2

            imgs2[7] = jingyantiao3

            imgs2[8] = jingyan3

            imgs2[9] = jingyantiao4

            imgs2[10] = jingyan4



            local imgs3 = {}

            imgs3[1] = exp0

            imgs3[2] = exp1

            imgs3[3] = exp2

            imgs3[4] = exp3

            imgs3[5] = exp4



            local imgs4 = {}

            imgs4[1] = ImageView_sun_0

            imgs4[2] = ImageView_sun_1

            imgs4[3] = ImageView_sun_2

            imgs4[4] = ImageView_sun_3

            imgs4[5] = ImageView_sun_4



            local imgs5 = {}

            imgs5[1] = Button_again

            imgs5[2] = Button_share

            imgs5[3] = Button_sure



            local all_imgs = {}

            all_imgs[1] = imgs

            all_imgs[2] = imgs0

            all_imgs[3] = imgs1

            all_imgs[4] = imgs2

            all_imgs[5] = imgs3

            all_imgs[6] = imgs4

            all_imgs[7] = imgs5



            local index = 1

            function callback() --for循环遍历数组



                if all_imgs[index] then

                    for k, v in ipairs(all_imgs[index]) do

                        if v then

                            v:setEnabled(true)

                        end

                end

        end

        index = index +1

        if index >7 then

                self.secondLevelMenuLayer:stopAllActions()

        end

    end



    local array = CCArray:create()

    local callfunc = CCCallFunc:create(callback)

    array:addObject(callfunc)

    local sequence = CCSequence:create(array)

    local forever  = CCRepeatForever:create(sequence)

    self.secondLevelMenuLayer:runAction(forever)

UI上的控件获取须要强转

--战斗结束界面Button实现

    local function back()

        CCDirector:sharedDirector():popScene()

    end



    local Button_close = tolua.cast(self.secondLevelMenuLayer:getWidgetByName("Button_close"),"Button")--lua的强转

    Button_close:setScale(1.3)   

    Button_close:addTouchEventListener(back)



    local Button_sure = self.secondLevelMenuLayer:getWidgetByName("Button_sure")

    Button_sure:addTouchEventListener(back)



    local Button_again = self.secondLevelMenuLayer:getWidgetByName("Button_again")

    local function enterBattle(sender, eventType)

            local pvpScene = PVPScene:new()

            pvpScene:init()

            CCDirector:sharedDirector():pushScene(pvpScene.scene)

    end

    Button_again:addTouchEventListener(enterBattle)

Button直接获取UI

创建UI

FormationUI = class ()



 local ccs = require ("ccs")



 function FormationUI:ctor()



         self.node = GUIReader:shareReader():widgetFromJsonFile("fight-object_1.ExportJson")--当初做的时候json文件出错当时一直崩溃



 end

function FormationUI:init()





end

Button获取UI（不通过scene）

--formationButton

    local function enterFormation(sender,eventType)

            if eventType == ccs.TouchEventType.ended then



                local formationUI = FormationUI.new()

                self.secondLevelMenuLayer:addWidget(formationUI.node)

                formationUI:init()               



            end

    end

    local formationButton = self.menuLayer:getWidgetByName("formationButton")

    formationButton:addTouchEventListener(enterFormation)

获取屏幕尺寸

local visibleSize = CCDirector:sharedDirector():getVisibleSize()

获取json文件

self.node = GUIReader:shareReader():widgetFromJsonFile("battleLose.ExportJson")



加入当前副本指示箭头(跳动效果)



    jiantou = CCSprite:create("image_jiantou.png")

    jiantou:setPosition(ccp(170,460))

    jiantou:setZOrder(1)

    self.superView.secondLevelMenuLayer:addChild(jiantou)



    local actionUp = CCJumpBy:create(20,ccp(0,0),40,20)

    local actionByBack = actionUp:reverse()



    local array = CCArray:create()

    array:addObject(actionUp)

    array:addObject(actionByBack)

    local action = CCSequence:create(array)



    jiantou:runAction(CCRepeatForever:create(action))

显示一精灵的方法。

没有就创建，有就隐藏。sender，eventType调用函数。參数为xy坐标

--显示箭头

function RegionMapUI:showArrow(x, y)

    --假设没有箭头就新建

    if not self.arrow then

        self.arrow = CCSprite:create("image_jiantou.png")

        self.arrow:setZOrder(1000)

        self.arrow:setAnchorPoint(CCPoint(0.52,0.17))

        self.node:addNode(self.arrow)

    end



    --推断是否在运行动画

    if self.arrow:numberOfRunningActions() then

        self.arrow:stopAllActions()

    end



    self.arrow:setVisible(true)

    self.arrow:setPosition(CCPoint(x,y))



    self.arrow:runAction(CCRepeatForever:create(CCJumpBy:create(0.8,ccp(0,0),15,1)))

end



--隐藏箭头

function RegionMapUI:hideArrow()

    --假设有箭头就隐藏

    if self.arrow then

        self.arrow:stopAllActions()

        self.arrow:setVisible(false)

    end

    

end

self:showArrow(sender:getPositionX(), sender:getPositionY())

self.winSize = cc.Director:getInstance():getWinSize()

setPosition(self.winSize.width/2,self.winSize.height/3)