FPS & NetStats & SysInfo for Forge/Unity C#

//Displays: actual FPS, KBs In/Out for Forge, System Info
//Author: HolyFot
//License: CC0
using UnityEngine;
using System;
using System.Collections;
using BeardedManStudios.Forge.Networking;
using BeardedManStudios.Forge.Networking.Unity;

public class FPSNetStats : MonoBehaviour
{
    public KeyCode openFPS = KeyCode.P;
    public bool state;

    private float deltaTime = 0.0f;
    private float kbsTimer = 1.0f; //X Seconds
    private float currTimer;
    private float kbInLast = 0.0f;
    private float kbOutLast = 0.0f;
    private float kbInCurr = 0.0f;
    private float kbOutCurr = 0.0f;
    private float kbsIN1 = 0.0f;
    private float kbsOUT1 = 0.0f;

    private int fpsCount = 0;
    public bool isEnabled = false;
    private int currentFPS = 0;
    BMSLogger loggerz;
    void Awake()
    {
        loggerz = FindObjectOfType<BMSLogger>();
    }

    void OnEnable()
    {
        isEnabled = true;
        StartCoroutine("FPSCalc");
    }

    void OnDisable()
    {
        isEnabled = false;
        StopCoroutine("FPSCalc");
    }

    void FixedUpdate()
    {
        //Update FPS (Not 100% accurate)
        //deltaTime += (Time.deltaTime - deltaTime) * 0.1f;

        //Update KBs Timer
        currTimer -= Time.deltaTime;
        if (currTimer <= 0.0f) //1 Second
        {
            kbsIN1 = 0.0f;
            kbsOUT1 = 0.0f;
            kbInCurr = 0.0f;
            kbOutCurr = 0.0f;
            kbInCurr = (NetworkManager.Instance.Networker.BandwidthIn / 1024.0f);
            kbOutCurr = (NetworkManager.Instance.Networker.BandwidthOut / 1024.0f);
            if (kbInCurr - kbInLast > 0.0f)
                kbsIN1 = (kbInCurr - kbInLast);
            if (kbOutCurr - kbOutLast > 0.0f)
                kbsOUT1 = (kbOutCurr - kbOutLast);

            kbInLast = 0.0f;
            kbOutLast = 0.0f;
            kbInLast = (NetworkManager.Instance.Networker.BandwidthIn / 1024.0f);
            kbOutLast = (NetworkManager.Instance.Networker.BandwidthOut / 1024.0f);

            //Calculate Accurate FPS & Reset
            currentFPS = fpsCount;
            fpsCount = 0;

            currTimer = kbsTimer; //Reset Timer
        }

        if (Input.GetKeyDown(openFPS))
        {
            if (state == false) //Toggle
            {
                if (loggerz != null)
                    loggerz.enabled = true;
                state = true;
            }
            else
            {
                if (loggerz != null)
                    loggerz.enabled = false;
                state = false;
            }
        }
    }

    private void OnGUI()
    {
        if (state)
        {
            //CALC KBS IN & OUT
            string kbsIN = string.Format("{0:0} KB/s", kbsIN1);
            string kbsOUT = string.Format("{0:0} KB/s", kbsOUT1);

            GUILayout.Space(45);
            //GUILayout.Label("The current server time is: " + string.Format("{0:0}", NetworkManager.Instance.Networker.Time));
            GUILayout.Label("Kilobytes In: " + kbsIN);
            GUILayout.Label("Kilobytes Out: " + kbsOUT);

            //CALC FPS & UPDATE TIME
            float msec = deltaTime * 1000.0f;
            float fps = 1.0f / deltaTime;
            string text = string.Format("{0:0.0} ms ({1:0.} fps)", msec, currentFPS); //fps*2
            GUILayout.Label("FPS: " + text);

            //Ping
            //GUILayout.Space(15);
            //GUILayout.Label("Ping: " + bl_Utilz.SetGetPingGameServer);

            //Monitor Info
            GUILayout.Label("Resolution: " + Screen.width + "x" + Screen.height + ": " + Screen.currentResolution.refreshRate + " Hz");

            //Hardware Info
            GUILayout.Label("CPU: " + SystemInfo.processorType);
            GUILayout.Label("Memory: " + FormatMem(SystemInfo.systemMemorySize));
            GUILayout.Label("GFX Card: " + SystemInfo.graphicsDeviceName);
        }
    }

    IEnumerator FPSCalc()
    {
        while (isEnabled)
        {
            yield return 0; //Count Each Frame
            fpsCount++;
        }
    }

    private string FormatMem(long num)
    {
        long i = (long)Math.Pow(10, (int)Math.Max(0, Math.Log10(num) - 2));
        num = num / i * i;
        if (num >= 1000)
            return (num / 1000D).ToString("0.##") + "GB";

        return num.ToString("#,0") + "MB";
    }
}