HoleClipping=class("HoleClipping",function()
    return cc.ClippingNode:create()
end)

HoleClipping.ctor=function(self)
    self:setInverted(true)
    self:setAlphaThreshold(0.5)

    self.stencil=cc.Node:create()
    self.holes=cc.Node:create()

    self:setStencil(self.stencil)
    self:addChild(self.holes)
end

--在指定点添加子弹孔
HoleClipping.addHole=function(self,point)
    self.rotate=math.random(0,1)*360    --旋转角度
    self.scale=math.random(0,1)*0.2+0.9 --缩放

    local stencil=function()
        local sprite=cc.Sprite:create("Images/hole_stencil.png")
        sprite:setPosition(point.x,point.y)
        sprite:setScale(self.scale)
        sprite:setRotation(self.rotate)
        return sprite
    end

    local content=function()
        local sprite=cc.Sprite:create("Images/hole_effect.png")
        sprite:setPosition(point.x,point.y)
        sprite:setScale(self.scale)
        sprite:setRotation(self.rotate)
        return sprite
    end

    self.holes:addChild(content())
    self.stencil:addChild(stencil())
end

--添加剪裁内容
HoleClipping.addContent=function(self,content)
    self.holes:addChild(content)
end

HoleClipping.create=function()
    local clip=HoleClipping.new()
    return clip
end

return HoleClipping