local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

local LP = Players.LocalPlayer
local PS = LP:WaitForChild("PlayerScripts")

local NORMAL_SPEED = 16
local NORMAL_JUMP = 50
local MAX_SAFE_SPEED = 55
local MAX_UPWARD_Y = 60
local MAX_DOWNWARD_Y = -120

local function getControls()
    local pm = PS:FindFirstChild("PlayerModule")
    if not pm then return nil end
    return require(pm):GetControls()
end

local function clearRagdoll(char)
    for _,v in ipairs(char:GetDescendants()) do
        if v:IsA("BallSocketConstraint") or v:IsA("HingeConstraint") then
            v:Destroy()
        elseif v:IsA("Motor6D") then
            v.Enabled = true
        end
    end
end

RunService.Heartbeat:Connect(function()
    local char = LP.Character
    if not char then return end

    local hum = char:FindFirstChildOfClass("Humanoid")
    local root = char:FindFirstChild("HumanoidRootPart")
    if not hum or not root then return end

    local controls = getControls()
    if controls then controls:Enable() end

    hum.PlatformStand = false
    hum.AutoRotate = true
    hum.Sit = false

    if hum.WalkSpeed < NORMAL_SPEED then hum.WalkSpeed = NORMAL_SPEED end
    if hum.JumpPower < NORMAL_JUMP then hum.JumpPower = NORMAL_JUMP end

    hum:ChangeState(Enum.HumanoidStateType.Running)

    clearRagdoll(char)

    local vel = root.AssemblyLinearVelocity
    local y = vel.Y

    if y > MAX_UPWARD_Y then
        y = MAX_UPWARD_Y
    elseif y < MAX_DOWNWARD_Y then
        y = MAX_DOWNWARD_Y
    end

    if Vector3.new(vel.X,0,vel.Z).Magnitude > MAX_SAFE_SPEED then
        local mv = hum.MoveDirection
        root.AssemblyLinearVelocity = Vector3.new(
            mv.X * hum.WalkSpeed,
            y,
            mv.Z * hum.WalkSpeed
        )
    else
        root.AssemblyLinearVelocity = Vector3.new(vel.X, y, vel.Z)
    end
end)