cocos2dx之裁剪

--裁剪 local layer = cc.LayerGradient:create(cc.c4b(255,255,255),cc.c4b(0,255))
--渐变层 self:addChild(layer)

--裁剪容器
local clippingNode = cc.ClippingNode:create()
clippingNode:setPosition(Const["CENTER_X"],Const["CENTER_Y"] + 150)
clippingNode:setInverted(true)  --设为true则会显示stencil模板外的区域,默认是显示模板stencil的区域
self:addChild(clippingNode)

--向容器中添加内容
local str = ccui.Text:create()
:setFontSize(34)
:setTextColor(cc.c3b(255,0,0))
:setString("哈哈哈哈--1-2-3-4-5-6-7-8-9-0--哈哈哈哈")
clippingNode:addChild(str)

--设容器模板，默认显示出模板
local stencil = cc.LayerColor:create(cc.c3b(220,0))
stencil:setContentSize(cc.size(25,100))
stencil:ignoreAnchorPointForPosition(false)
stencil:setAnchorPoint(cc.p(0.5,0.5))
clippingNode:setStencil(stencil)

--模板移动，可看的区域移动
local moveBy1 = cc.MoveBy:create(2.5,cc.p(str:getContentSize().width / 2 - 10,0)) local moveBy2 = cc.MoveBy:create(2.5,cc.p(-(str:getContentSize().width / 2) + 10,0)) local action = cc.RepeatForever:create(cc.Sequence:create(moveBy2,moveBy1,moveBy2)) stencil:runAction(action)