function imgui.OnDrawFrame()
if main_window_state.v then
imgui.SetNextWindowSize(imgui.ImVec2(500, 500), imgui.Cond.FirstUseEver)
imgui.SetNextWindowPos(imgui.ImVec2(resX / 2, resY / 2), imgui.Cond.FirstUseEver, imgui.ImVec2(0.5, 0.5))
imgui.Begin("Truck Helper. by...