ROBLOX LIGHTNING

    script.Name = "Lol Derp"
    local bright = game.Lighting.Brightness

    function prop(part, parent, collide, tran, ref, x, y, z, color, anchor, form)
    part.Parent = parent
    part.formFactor = form
    part.CanCollide = collide
    part.Transparency = tran
    part.Reflectance = ref
    part.Size = Vector3.new(x,y,z)
    part.BrickColor = BrickColor.new(color)
    part.TopSurface = 0
    part.BottomSurface = 0
    part.Anchored = anchor
    part.Locked = true
    part:BreakJoints()
    end


    function thunder(pos)
            local last = CFrame.new(pos)
            local scale = 1
            local lights = {}
            repeat
                    local si = math.random(15,45)
                    local p = Instance.new("Part")
                    prop(p,workspace,true,0,0,5,si,5,"New Yeller",true,"Custom")
                    p.CFrame = last * CFrame.new(0,-scale/2,0)
                    p.CFrame = CFrame.new(p.Position) * CFrame.Angles(math.random(-120,120)/100,math.random(-30,30)/100,math.random(-120,120)/100) * CFrame.new(0,-si/2,0)
                    last = p.CFrame
                    scale = si
                    table.insert(lights,p)
            until last.y < 14
            local ex = Instance.new("Explosion",workspace)
            ex.BlastRadius = 22
            ex.BlastPressure = 300000
            ex.Position = last * CFrame.new(0,-scale/2,0).p
            local pew = Instance.new("Sound",workspace)
            pew.SoundId = "rbxasset://sounds\HalloweenLightning.wav"
            pew.Volume = math.random(70,110)/100
            pew.Pitch = math.random(85,120)/100
            coroutine.resume(coroutine.create(function()
                    for i=1,math.random(5,25) do
                            if game.Lighting.Brightness == bright then
                                    game.Lighting.Brightness = 9999
                            else
                                    game.Lighting.Brightness = bright
                            end
                            wait()
                    end
                    game.Lighting.Brightness = bright
            end))
            wait(0.05)
            pew:play()
            wait(math.random(10,80)/100)
            ex:remove()
            for _,v in pairs(lights) do
                    coroutine.resume(coroutine.create(function()
                            for i=0,1,0.25 do
                                    wait()
                                    v.Transparency = i
                            end
                            v:remove()
                    end))
            end
    end

    while true do
            wait(math.random(1,300)/100)
            coroutine.resume(coroutine.create(function()
                    thunder(Vector3.new(math.random(-250,250),math.random(700,1000),math.random(-250,250)))
            end))
    end