BackLayer=class("BackLayer",function()
    return cc.Layer:create()
end)

BackLayer.ctor=function(self)
    local size=cc.Director:getInstance():getWinSize()
    self.size=size
    local sprite=cc.Sprite:create("clipguide/HelloWorld.png")
    sprite:setPosition(size.width/2,size.height/2)
    self:addChild(sprite)

    --添加ClippingNode遮罩
    local clip=require("sprite.clipping.guide.ClipGuide")
    self.clip=clip.create()
    self:addChild(self.clip)

    --添加提示标志
    self.tip=self:guideSprite()
    self:addChild(self.tip)

    --添加监听事件
    self:event()
end

BackLayer.guideSprite=function(self)
    --提示标志
    local guide=cc.Sprite:create()
    guide:setTexture("clipguide/tip.png")
    guide:setPosition(self.size.width/2-55,self.size.height/2+40)
    guide:setScale(0.4)
    guide:setRotation(60)

    --提示标志动作
    local scale1=cc.ScaleBy:create(0.25,0.95)
    local scale2=cc.ScaleTo:create(0.25,0.4)
    local action=cc.Sequence:create(scale1,scale2)
    guide:runAction(cc.RepeatForever:create(action))

    return guide
end

BackLayer.event=function(self)
    local function onTouchBegin(touch,event)
        return true
    end

    local function onTouchMoved(touch,event)
    end

    local function onTouchEnded(touch,event)
        local location=touch:getLocationInView()  -- touch in screen
        local glPoint=cc.Director:getInstance():convertToGL(location)
        if self.clip and self.tip then
            local rect=self.clip:getStencilRect()
            if cc.rectContainsPoint(rect,glPoint) then
                self:removeChild(self.clip,true)
                self:removeChild(self.tip,true)
                self.clip,self.tip=nil,nil
            end
        end
    end

    local listener=cc.EventListenerTouchOneByOne:create()
    listener:registerScriptHandler(onTouchBegin,cc.Handler.EVENT_TOUCH_BEGAN)
    listener:registerScriptHandler(onTouchMoved,cc.Handler.EVENT_TOUCH_MOVED)
    listener:registerScriptHandler(onTouchEnded,cc.Handler.EVENT_TOUCH_ENDED)

    local dispacher=cc.Director:getInstance():getEventDispatcher()
    dispacher:addEventListenerWithSceneGraphPriority(listener,self)
end

BackLayer.create=function()
    local layer=BackLayer.new()
    return layer
end

return BackLayer