ROBLOX Scripting | Obby Checkpoints

-- Made by Tweakified, Neonblox Games
-- Video: https://youtu.be/WRXBa8AwoXo

local Players = game:GetService("Players")

local Checkpoints = workspace:WaitForChild("Checkpoints")
local inGameStartupPlayers = {}
local CurrentStage = {}
local TouchDb = {}

local function NewCharacter(player, char)
    local TempCurrentStage = CurrentStage[player.UserId]
    if TempCurrentStage ~= nil then
        local TempCheckpoint = Checkpoints:FindFirstChild(TempCurrentStage)
        if TempCheckpoint ~= nil then
            repeat wait(0.1) until char.PrimaryPart ~= nil
            char:SetPrimaryPartCFrame(CFrame.new(TempCheckpoint.Position + Vector3.new(0, 3, 0)) * CFrame.Angles(0, math.rad(TempCheckpoint.Orientation.Y) + math.rad(90), 0))
        end
    end
end

local function NewPlayer(player)
    CurrentStage[player.UserId] = 1

    local leaderstats = Instance.new("Folder", player)
    leaderstats.Name = "leaderstats"
    local Stage = Instance.new("IntValue", leaderstats)
    Stage.Name = "Stage"
    Stage.Value = 1

    local TempChar = player.Character
    if TempChar ~= nil then
        NewCharacter(player, TempChar)
    end
    player.CharacterAdded:Connect(function(char)
        NewCharacter(player, char)
    end)
end

Players.PlayerAdded:Connect(function(player)
    if inGameStartupPlayers[player] == nil then
        NewPlayer(player)
    end
end)

Players.PlayerRemoving:Connect(function(player)
    CurrentStage[player.UserId] = nil
end)

for i,v in pairs(Checkpoints:GetChildren()) do
    local StageNum = tonumber(v.Name)
    v.Touched:Connect(function(hit)
        local char = hit.Parent
        if char ~= nil then
            local Humanoid = char:FindFirstChildOfClass("Humanoid")
            if Humanoid ~= nil and Humanoid.Health > 0 then
                local player = Players:GetPlayerFromCharacter(char)
                if player ~= nil and (TouchDb[player.UserId] or 0) + 1 <= os.time() then
                    TouchDb[player.UserId] = os.time()
                    local TempCurrentStage = CurrentStage[player.UserId]
                    if TempCurrentStage == StageNum - 1 then
                        CurrentStage[player.UserId] = StageNum
                        local TempLeaderstats = player:FindFirstChild("leaderstats")
                        if TempLeaderstats ~= nil then
                            local TempStage = TempLeaderstats:FindFirstChild("Stage")
                            if TempStage ~= nil then
                                TempStage.Value = StageNum
                            end
                        end
                    end
                end
            end
        end
    end)
end

inGameStartupPlayers = Players:GetPlayers()
for i,v in pairs(inGameStartupPlayers) do
    spawn(function()
        NewPlayer(v)
    end)
end

inGameStartupPlayers = {}