roblox checkpoint

-- this is a checkpoint script and may be used in obby's

function on(hit)
if hit.Parent ~= nil then
local player = game.Players:playerFromCharacter(hit.Parent)
if player ~= nil then
if player.leaderstats.Stage.Value == script.Parent.Name - 1 then
local h = hit.Parent:FindFirstChild("Humanoid")
if h ~= nil then
if h.Health ~= 0 then
player.leaderstats.Stage.Value = script.Parent.Name
end end end end end end

script.Parent.Touched:connect(ot)
local spawn = script.Parent
spawn.Touched:connect(function(hit)
 if hit and hit.Parent and hit.Parent:FindFirstChild("Humanoid") then
  local player = game.Players:GetPlayerFromCharacter(hit.Parent)
  local checkpointData = game.ServerStorage:FindFirstChild("CheckpointData")
  if not checkpointData then
   checkpointData = Instance.new("Model", game.ServerStorage)
   checkpointData.Name = "CheckpointData"
  end

  local checkpoint = checkpointData:FindFirstChild(tostring(player.userId))
  if not checkpoint then
   checkpoint = Instance.new("ObjectValue", checkpointData)
   checkpoint.Name = tostring(player.userId)

   player.CharacterAdded:connect(function(character)
    wait()
    character:WaitForChild("HumanoidRootPart").CFrame = game.ServerStorage.CheckpointData[tostring(player.userId)].Value.CFrame + Vector3.new(0, 4, 0)
   end)
  end

  checkpoint.Value = spawn
 end
end)