Simlpe speedometer for FiveM

Citizen.CreateThread(function()
    while true do
        Citizen.Wait(0)
        if IsPedSittingInAnyVehicle(GetPlayerPed(-1)) then
            local vehicle = GetVehiclePedIsIn(GetPlayerPed(-1), false)
            if DoesEntityExist(vehicle) and not IsEntityDead(vehicle) then
                if not HasStreamedTextureDictLoaded("speedo") then
                    RequestStreamedTextureDict("speedo", true) -- unload it
                    while not HasStreamedTextureDictLoaded("speedo") do
                        Wait(0)
                    end
                else
                    -- everything is ok
                    local degree = 0
                    local step = 2.05833
                    if GetEntitySpeed(vehicle) > 0 then degree=(GetEntitySpeed(vehicle)*2.236936)*step end
                    DrawSprite("speedo", "speedom_001", 0.898,0.752,0.16,0.245, 0.0, 255, 255, 255, 255)
                    if degree > 247 then degree=247 end
                    DrawSprite("speedo", "needle_001", 0.898,0.755,0.116,0.15,43.00001+degree, 255, 255, 255, 200)
                end
            end
        end
    end
end)


-- explanations.
--[[
what does 'local step' means?
I detect the minimum needle angle (is 43.0 and maximum - is 290.0).
Difference between min and max angles is 247.0. Then i divide this difference by zero, no wait, divide this
by 120 (how much gradation units we have on our speedometer) and i got local step. It is 2.05833 as you can see.
Then i found on nativeDB how to detect entity speed in MPH.
Thanks for reading this barbarian-english comments.
]]