local default_fov


function on_game_start()
    RegisterScriptCallback("on_game_load", on_game_load)
    RegisterScriptCallback("on_option_change", on_option_change)
end


function on_game_load()
    write_fov()
end

function on_option_change()
    write_fov()
end



function write_fov()
    default_fov = ui_options.get("video/basic/hud_fov")
end


function set_fov(new_fov)
    exec_console_cmd("hud_fov " .. new_fov)
end


function restore_fov()
    exec_console_cmd("hud_fov " .. default_fov)
end