game:GetService("RunService").PreSimulation:Connect(function()
    if game:GetService("Players").LocalPlayer.Character
    and game:GetService("Players").LocalPlayer.Character:FindFirstChild("HumanoidRootPart") then

        local RaycastParameters = RaycastParams.new()

        RaycastParameters.FilterType = Enum.RaycastFilterType.Blacklist
        RaycastParameters.IgnoreWater = true
        RaycastParameters.FilterDescendantsInstances = {
            game:GetService("Players").LocalPlayer.Character
        }

        local RaycastResult = workspace:Raycast(
            game:GetService("Players").LocalPlayer.Character.HumanoidRootPart.Position,
            Vector3.new(0,5,0),
            RaycastParameters
        )

        if RaycastResult then
            if not _G.LastFPress or tick() - _G.LastFPress > 0.02 then
                _G.LastFPress = tick()

                keypress(0x46)
                keyrelease(0x46)
            end
        end
    end
end)