Rewind (doesn't work)

--- [[ Simple Time Rewind ]] ---
-- by fo43123, edited by dinsfire34
-- original: https://pastebin.com/J4SZ8VC7

local mePlayer = game.Players.LocalPlayer
local meChar = game.workspace.LocalPlayer
local mouse = mePlayer:GetMouse()
local char = meChar
local hum = char:FindFirstChild('Humanoid')
local hd = char:FindFirstChild('Head')
local ts = char:FindFirstChild('Torso') or char:FindFirstChild('UpperTorso')
local ra = char:FindFirstChild('Right Arm') or char:FindFirstChild('RightUpperArm')
local la = char:FindFirstChild('Left Arm') or char:FindFirstChild('LeftUpperArm')
local rl = char:FindFirstChild('Right Leg') or char:FindFirstChild('RightUpperLeg')
local ll = char:FindFirstChild('Left Leg') or char:FindFirstChild('LeftUpperLeg')
local root = char:FindFirstChild('HumanoidRootPart')
local rj = root:FindFirstChild('RootJoint')
local rs = ts:FindFirstChild('Right Shoulder')
local ls = ts:FindFirstChild('Left Shoulder')
local rh = ts:FindFirstChild('Right Hip')
local lh = ts:FindFirstChild('Left Hip')
local nk = ts:FindFirstChild('Neck')
local anim = char:FindFirstChild('Animate')
local base = workspace:FindFirstChild('Baseplate') or workspace:FindFirstChild('Base')
local cantimerewind = true
local cooldown = false
local selfrewind = true
local cc = workspace.CurrentCamera
local cos = math.cos
local sin = math.sin
local rad = math.rad
local rand = math.random
local cfn = CFrame.new
local cfa = CFrame.Angles
local v3 = Vector3.new
local str = string
local past = {}
local lastpast = {}
local sine = 0
local rewind = Instance.new('Sound', hd)
local onrewind = Instance.new('Sound', workspace.CurrentCamera)
onrewind.Looped = true
onrewind.Volume = 10
onrewind.SoundId = 'rbxassetid://2061143306'
rewind.SoundId = 'rbxassetid://864569342'
rewind.Name = 'trewind'
rewind.Volume = 1
rewind.PlaybackSpeed = 1.25
hum.WalkSpeed = 23
effects = Instance.new('Folder', char)
effects.Name = 'Effects'

ArtificialHB = Instance.new('BindableEvent', script)
ArtificialHB.Name = 'Heartbeat'
script:WaitForChild('Heartbeat')

frame = 1 / 60
tf = 0
allowframeloss = false
tossremainder = false
lastframe = tick()
script.Heartbeat:Fire()

game:GetService('RunService').Heartbeat:connect(function(s, p)
    tf = tf + s
    if tf >= frame then
        if allowframeloss then
            script.Heartbeat:Fire()
            lastframe = tick()
        else
            for i = 1, math.floor(tf / frame) do
                script.Heartbeat:Fire()
            end
            lastframe = tick()
        end
        if tossremainder then
            tf = 0
        else
            tf = tf - frame * math.floor(tf / frame)
        end
    end
end)

function swait(t)
    if t == 0 or t == nil then
        script.Heartbeat.Event:Wait()
    else
        for i = 0, t do
            script.Heartbeat.Event:Wait()
        end
    end
end

function sound(id, parent, vol, pitch, timepos)
    local s = Instance.new('Sound')
    s.Parent = parent
    s.SoundId = id
    s.Volume = vol
    s.PlaybackSpeed = pitch
    s.TimePosition = timepos
    s:Play()
    game.Debris:AddItem(s, s.PlaybackSpeed + 5)
end

function camshake(duration, intensity)
    coroutine.wrap(function()
        for i = 0, duration*60 do
            hum.CameraOffset = v3(rand(-(intensity*10),(intensity*10))/10, rand(-(intensity*10),(intensity*10))/10, rand(-(intensity*10), (intensity*10))/10)
            swait()
        end
        hum.CameraOffset = v3(0, 0, 0)
    end)()
end

function readyrewind()
    cantimerewind = false
    cooldown = true
    onrewind:Play()
    for i,v in pairs(workspace:GetDescendants()) do
        if v:IsA('BasePart') then
            local lastpos = v.CFrame
            table.insert(past, {part = v, change = lastpos})
        end
        if v.Parent then
            local lastparent2 = v.Parent
            table.insert(lastpast, {part2 = v, change4 = lastparent2})
        end
        if v:IsA('Camera') then
            local lastcam = v.CFrame
            table.insert(past, {cam = v, change3 = lastcam})
        end
        if v:IsA('Sound') then
            if v ~= rewind then
                local lastsongpos = v.TimePosition
                table.insert(past, {sound = v, pchange = lastsongpos})
            end
        end
        if v:IsA('Humanoid') then
            local lasthp = v.Health
            local always = lasthp
            table.insert(past, {health = v, hchange = lasthp})
        end
    end
    newpast = workspace.DescendantAdded:Connect(function(v)
        if v:IsA('BasePart') then
            local lastpos = v.CFrame
            local lastparent = v.Parent
            table.insert(past, {part = v, change = lastpos, change4 = lastparent})
        end
        if v.Parent then
            local lastparent2 = v.Parent
            table.insert(lastpast, {part2 = v, change4 = lastparent2})
        end
        if v:IsA('Camera') then
            local lastcampos = v.CFrame
            table.insert(past, {cam = v, change3 = lastcampos})
        end
        if v:IsA('Sound') then
            if v ~= rewind then
                local lastsongpos = v.TimePosition
                table.insert(past, {sound = v, pchange = lastsongpos})
            end
        end
        if v:IsA('Humanoid') then
            local lasthp = v.Health
            local always = lasthp
            table.insert(past, {health = v, hchange = lasthp})
        end
    end)
end

function timerewind()
    if cooldown then
    rewind:Play()
    sine = 0
    onrewind:Stop()
    coroutine.wrap(function()
    local cce = Instance.new('ColorCorrectionEffect', game.Lighting)
    local blur = Instance.new('BlurEffect', game.Lighting)
    local effect2 = Instance.new('Part', effects)
    local effect3 = Instance.new('Part', effects)
    effect3.Shape = 'Ball'
    effect3.Material = 'ForceField'
    effect3.Anchored = true
    effect3.CanCollide = false
    effect3.Name = 'eff3'
    effect3.BrickColor = BrickColor.new('Really red')
    effect3.Size = v3(30, 30, 30)
    effect3.Transparency = 0
    effect2.CastShadow = false
    effect2.Shape = 'Ball'
    effect2.BrickColor = BrickColor.new('Bright red')
    effect2.Material = 'ForceField'
    effect2.Name = 'eff2'
    effect2.Anchored = true
    effect2.CanCollide = false
    effect2.Size = v3(50, 50, 50)
    effect2.Transparency = 0
    cantimerewind = true
    for i,v in pairs(past) do
        pcall(function()
            v.part.CFrame = v.change
        end)
        pcall(function()
            v.cam.CFrame = v.change3
        end)
        pcall(function()
            v.sound.TimePosition = v.pchange
        end)
        pcall(function()
            v.health.Health = v.hchange
        end)
    end
    for i,v in pairs(lastpast) do
        pcall(function()
            v.part2.Parent = v.change4
        end)
    end
    pcall(function()
        newpast:Disconnect()
    end)
    coroutine.wrap(function()
        for i = 1, 1000 do
            effect2.CFrame = ts.CFrame
            effect3.CFrame = ts.CFrame
            blur.Size = v3(blur.Size, 0, 0):lerp(v3(0, 0, 0), .010).X
            cce.TintColor = cce.TintColor:lerp(Color3.fromRGB(255, 0, 0), 0.050)
            effect2.Transparency = effect2.Transparency + 0.020
            effect3.Transparency = effect3.Transparency + 0.020
            effect2.Size = effect2.Size:lerp(v3(0, 0, 0), 0.050)
            effect3.Size = effect3.Size:lerp(v3(0, 0, 0), 0.030)
            if effect2.Transparency >= 1 then
                effect2:Destroy()
            end
            if effect3.Transparency >= 1 then
                effect3:Destroy()
            end
            swait()
        end
    end)()
    wait(1)
    blur:Destroy()
    cce:Destroy()
    end)()
    wait(1.5) -- cooldown
    past = {}
    cooldown = false
    end
end

mouse.KeyDown:connect(function(key)
    if str.lower(key) == 'r' and cantimerewind and cooldown == false then
        readyrewind()
    elseif str.lower(key) == 'r' and cantimerewind == false and cooldown then
        timerewind()
    end
end)

hum.HealthChanged:connect(function()
    if selfrewind then
        cooldown = true
        cantimerewind = false
        timerewind()
    end
end)