Checkpoint Script

local STAT_NAME = "Stage"
local PREVENT_SKIPPING = true

local checkpoints = {}

local i = 1
while true do
    local checkpoint = Workspace:FindFirstChild("Checkpoint " .. i, true)
    if not checkpoint then print("Last Checkpoint : " .. i-1) break end
    table.insert(checkpoints, checkpoint)
    i = i + 1
end

game.Players.PlayerAdded:connect(function(player)
    local leaderstats = player:FindFirstChild("leaderstats") or Instance.new("Model", player)
    leaderstats.Name = "leaderstats"

    local checkpointStat = Instance.new("IntValue", leaderstats)
    checkpointStat.Name = STAT_NAME
    checkpointStat.Value = 1

    player.CharacterAdded:connect(function(character)
        local goto = checkpoints[checkpointStat.Value]
        if goto then
            repeat wait() until character.Parent
            character:MoveTo(goto.Position)
        else
            warn("Checkpoint " .. checkpointStat.Value .. " not found")
        end
    end)
end)

for index, checkpoint in ipairs(checkpoints) do
    checkpoint.Touched:connect(function(hit)
        local player = game.Players:GetPlayerFromCharacter(hit.Parent)
        if not player then return end
        local humanoid = hit.Parent:FindFirstChild("Humanoid")
        if not humanoid or humanoid.Health <= 0 then return end
        local leaderstats = player:FindFirstChild("leaderstats")
        if not leaderstats then return end
        local checkpointStat = leaderstats:FindFirstChild(STAT_NAME)
        if not leaderstats then return end

        if (PREVENT_SKIPPING and checkpointStat.Value + 1 == index) or (not PREVENT_SKIPPING and checkpointStat.Value < index) then
            checkpointStat.Value = index
        end
    end)
end