local SUIFPS = {}

local nTime = 0
local nFrameCount = 0

local function UpdateFPS()
    local textFpsCom = SUIFPS.rootPanel.transform:GetComponent("Text")
     nTime = nTime + CS.UnityEngine.Time.unscaledDeltaTime;
     nFrameCount = nFrameCount + 1

     if (nTime >= 1 and nFrameCount >= 1) then
         local fps = nFrameCount / nTime
         nTime = 0;
         nFrameCount = 0;
         textFpsCom.text = string.format("fps_1: %.2f", fps);
     end
end

function SUIFPS.Awake(luaRoot)
    SUIFPS.luaRoot = luaRoot

    local canvas = CS.UnityEngine.GameObject.Find("Canvas")
    SUIFPS._rootCanvas = canvas

    local prefabPanelGaming = LoadResource("Prefabs/UI/SUIFPS.prefab")
    local rootPanel = CS.UnityEngine.GameObject.Instantiate(prefabPanelGaming, SUIFPS._rootCanvas.transform)
    SUIFPS.rootPanel = rootPanel

    CS.UnityEngine.Object.DontDestroyOnLoad(SUIFPS.rootPanel)
end

function SUIFPS.Update()
    UpdateFPS()
end

return SUIFPS