Simple Fly Script

local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")
local rootPart = character:WaitForChild("HumanoidRootPart")

local flying = false
local flySpeed = 50 -- Speed at which the player flies


local function startFlying()
    flying = true
    
 
    local bodyVelocity = Instance.new("BodyVelocity")
    bodyVelocity.MaxForce = Vector3.new(1000000, 1000000, 1000000)
    bodyVelocity.Velocity = Vector3.new(0, 0, 0)
    bodyVelocity.Parent = rootPart

 
    local userInputService = game:GetService("UserInputService")
    

    while flying do
        local moveDirection = Vector3.new(0, 0, 0)
        
        if userInputService:IsKeyDown(Enum.KeyCode.W) then
            moveDirection = moveDirection + workspace.CurrentCamera.CFrame.LookVector
        end
        if userInputService:IsKeyDown(Enum.KeyCode.S) then
            moveDirection = moveDirection - workspace.CurrentCamera.CFrame.LookVector
        end
        if userInputService:IsKeyDown(Enum.KeyCode.A) then
            moveDirection = moveDirection - workspace.CurrentCamera.CFrame.RightVector
        end
        if userInputService:IsKeyDown(Enum.KeyCode.D) then
            moveDirection = moveDirection + workspace.CurrentCamera.CFrame.RightVector
        end
        if userInputService:IsKeyDown(Enum.KeyCode.Space) then
            moveDirection = moveDirection + Vector3.new(0, 1, 0)
        end
        if userInputService:IsKeyDown(Enum.KeyCode.LeftShift) then
            moveDirection = moveDirection - Vector3.new(0, 1, 0)
        end
        
        bodyVelocity.Velocity = moveDirection * flySpeed
        wait(0.1)
    end
end


local function stopFlying()
    flying = false
    rootPart:FindFirstChild("BodyVelocity"):Destroy()
end

-- Toggle fly on and off with the "F" key
game:GetService("UserInputService").InputBegan:Connect(function(input)
    if input.KeyCode == Enum.KeyCode.F then
        if flying then
            stopFlying()
        else
            startFlying()
        end
    end
end)