Двойной прыжок в воздухе

local Players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local player = Players.LocalPlayer
local humanoid
local root
local canDoubleJump = false
local usedDoubleJump = false
local function setup(character)
    humanoid = character:WaitForChild("Humanoid")
    root = character:WaitForChild("HumanoidRootPart")
    canDoubleJump = false
    usedDoubleJump = false
    humanoid.StateChanged:Connect(function(_, newState)
        if newState == Enum.HumanoidStateType.Landed or newState == Enum.HumanoidStateType.Running then
            usedDoubleJump = false
            canDoubleJump = false
        elseif newState == Enum.HumanoidStateType.Freefall then
            canDoubleJump = true
        end
    end)
end
player.CharacterAdded:Connect(setup)
if player.Character then setup(player.Character) end
UserInputService.JumpRequest:Connect(function()
    if not humanoid or not root or humanoid.Health <= 0 then return end
    if canDoubleJump and not usedDoubleJump then
        usedDoubleJump = true
        canDoubleJump = false
        root.AssemblyLinearVelocity = Vector3.new(
            root.AssemblyLinearVelocity.X, 55, root.AssemblyLinearVelocity.Z
        )
        humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
    end
end)