ROBLOX Quick Checkpoint Script

-- 6/1/2020 no pain, no gain --
-- looks like getting the humanoid is instable because sometimes it cannot find it at all --
local all = {}
local plr = game:GetService("Players").LocalPlayer
local mouse = plr:GetMouse()

local i = 0
local telespeed = 1.05

mouse.KeyDown:Connect(function(key)
	if key == "z" then
		i = i + 1
		local cp = Instance.new("Part")
		cp.Name = "checkpoint" .. tostring(i)
		cp.CanCollide = false
		cp.Anchored = true
		cp.Size = Vector3.new(6,1,6)
		cp.BrickColor = BrickColor.Random()
		cp.Material = "Neon"
		cp.CFrame = CFrame.new(plr.Character.HumanoidRootPart.Position)
		cp.Parent = workspace
		all[i] = cp
	elseif key == "x" then
		if i > 0 then
			plr.Character.HumanoidRootPart.CFrame = all[i].CFrame
		end
	elseif key == "c" then
		if i > 0 then
			all[i]:Destroy()
			i = i - 1
		end
	elseif key == "v" then
		for j = 1,i do
			plr.Character.HumanoidRootPart.CFrame = all[j].CFrame
			wait(telespeed)
		end
	end
end)


--[[while true do
	wait(.5)
	local oldchar = plr.Character
	local hum = oldchar:FindFirstChild("Humanoid")
	if hum then -- hum can sometimes not be found at all

	end
end]]