cocos2d-x 3.15中帧动画相关

在cocos2d-x 3.15中可以通过序列帧来实现动画效果，具体实现方法就不说了。
不过，在这个过程中有个地方需要注意，就是序列帧动画大小的设置，如下图所示的情况

xlz.png

要想让动画跟 背景边框完全重合的话，需要设置缩放来适应，代码如下

function Active_SignInLayer:createAnimation( backSprite,count )
    local animation = cc.Animation:create()
    local backSize = backSprite:getContentSize()
    local aniSprite
    if count < 7 then--创建第一天到第六天的动画
        for j=1,9,1 do
            local name = "Active/animation_oneToSix_"..j..".png"
            local fileName = G_GetPlazaRes(name)
            animation:addSpriteFrameWithFile(fileName)
        end
        aniSprite = cc.Sprite:create(G_GetPlazaRes("Active/animation_oneToSix_1.png"))
    else--创建第七天的动画
        for j=1,9,1 do
            local name = "Active/animation_seven_"..j..".png"
            local fileName = G_GetPlazaRes(name)
            animation:addSpriteFrameWithFile(fileName)
        end
        aniSprite = cc.Sprite:create(G_GetPlazaRes("Active/animation_seven_1.png"))
        local aniSize = aniSprite:getContentSize()

    end

 --计算缩放值
        local aniSize = aniSprite:getContentSize()
        local sx = backSize.width/(aniSize.width-6)
        local sy = backSize.height/(aniSize.height-6)
    aniSprite:addTo(backSprite)
    aniSprite:setAnchorPoint(0.5,0.5)
    aniSprite:setPosition(backSize.width/2,backSize.height/2)
    -- aniSprite:setContentSize(backSize)
--缩放
        aniSprite:setScaleX(sx)
        aniSprite:setScaleY(sy)
    animation:setDelayPerUnit(0.08)
    animation:setRestoreOriginalFrame(true)--动画执行后还原初始状态
    local action = cc.Animate:create(animation)
    aniSprite:runAction(cc.RepeatForever:create(action))
print("sx = " .. sx..";sy = " .. sy)
end