FPS Counter + Hardware Info

FPSInfo.cs

//Displays: Accurate FPS Counter + Hardware Info
//Author: HolyFot
//License: CC0
using UnityEngine;
using System;
using System.Collections;

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

    private float deltaTime = 0.0f;
    private float fpsTimer = 1.0f;
    private float currTimer;

    private int fpsCount = 0;
    public bool isEnabled = false;
    private int currentFPS = 0;
    private string memory = "";
    private string cpuMake = "";
    private string gpuMake = "";

    void Awake()
    {
        cpuMake = SystemInfo.processorType.ToString();
        memory = FormatMem(SystemInfo.systemMemorySize));
        gpuMake = SystemInfo.graphicsDeviceName);
    }

    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 FPS Timer
        currTimer -= Time.deltaTime;
        if (currTimer <= 0.0f) //1 Second
        {
            //Calculate Accurate FPS & Reset
            currentFPS = fpsCount;
            fpsCount = 0;

            currTimer =fpsTimer; //Reset Timer
        }

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

    private void OnGUI()
    {
        if (state)
        {
            //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, fps); //currentFPS
            GUILayout.Label("FPS: " + text);

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

            //Hardware Info
            GUILayout.Label("CPU: " + cpuMake);
            GUILayout.Label("Memory: " + memory;
            GUILayout.Label("GFX Card: " + gpuMake;
        }
    }

    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";
    }
}