osu!Tapspeed by DaRealSlimOni v.1.2

// Version 1.2

using System;
using System.Diagnostics;
using System.Threading;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace osu_Tapspeed
{
    class Program
    {
        private const int WH_KEYBOARD_LL = 13;
        private const int WM_KEYDOWN = 0x0100;
        private const int WH_MOUSE_LL = 14;
        private const int WM_LBUTTONDOWN = 0x0201;
        private const int WM_RBUTTONDOWN = 0x0204;
        private static LowLevelProc _procK = HookCallbackK;
        private static LowLevelProc _procM = HookCallbackM;
        private static IntPtr _hookIDK = IntPtr.Zero;
        private static IntPtr _hookIDM = IntPtr.Zero;
        private static Stopwatch stopwatch = new Stopwatch();
        private static ConsoleKeyInfo hk1;
        private static ConsoleKeyInfo hk2;
        private static int taps;
        private static int taps_count;
        private static bool start;
        private static bool first = true;
        private static bool setkeys;

        #region Imports
        public delegate IntPtr LowLevelProc(int nCode, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        public static extern IntPtr SetWindowsHookEx(int idHook, LowLevelProc lpfn, IntPtr hMod, uint dwThreadId);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        public static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool UnhookWindowsHookEx(IntPtr hhk);

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern IntPtr GetModuleHandle(string lpModuleName);
        #endregion

        private static IntPtr HookCallbackK(int nCode, IntPtr wParam, IntPtr lParam)
        {
            try
            {
                if (nCode >= 0)
                {
                    if ((int) wParam == WM_KEYDOWN)
                    {
                        if (start)
                        {
                            int vkCode = Marshal.ReadInt32(lParam);
                            //Debug.WriteLine("vkCode: " + vkCode);
                            if (vkCode == (int) hk1.Key || vkCode == (int) hk2.Key)
                            {
                                if (first)
                                {
                                    stopwatch.Start();
                                    first = false;
                                }
                                if (taps_count == 0)
                                {
                                    stopwatch.Stop();
                                    start = false;
                                    SendKeys.Send("{F15}");
                                    return CallNextHookEx(_hookIDM, nCode, wParam, lParam);
                                }
                                //Debug.WriteLine("KeyChar: " + vkCode);
                                taps_count--;
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                //Debug.WriteLine("Error in HookCallbackK(): " + ex.Message);
            }
            return CallNextHookEx(_hookIDK, nCode, wParam, lParam);
        }

        private static IntPtr HookCallbackM(int nCode, IntPtr wParam, IntPtr lParam)
        {
            try
            {
                if (nCode >= 0)
                {
                    if ((int)wParam == WM_LBUTTONDOWN || (int)wParam == WM_RBUTTONDOWN)
                    {
                        if (start)
                        {
                            if (hk1.Key == ConsoleKey.F13 && (int)wParam == WM_LBUTTONDOWN || hk1.Key == ConsoleKey.F14 && (int)wParam == WM_RBUTTONDOWN || hk2.Key == ConsoleKey.F13 && (int)wParam == WM_LBUTTONDOWN || hk2.Key == ConsoleKey.F14 && (int)wParam == WM_RBUTTONDOWN)
                            {
                                if (first)
                                {
                                    stopwatch.Start();
                                    first = false;
                                }
                                if (taps_count == 0)
                                {
                                    stopwatch.Stop();
                                    start = false;
                                    SendKeys.Send("{F15}");
                                    return CallNextHookEx(_hookIDM, nCode, wParam, lParam);
                                }
                                taps_count--;
                            }
                        }
                        else
                        {
                            if (setkeys)
                            {
                                if ((int) wParam == WM_LBUTTONDOWN)
                                    SendKeys.Send("{F13}");
                                else
                                    SendKeys.Send("{F14}");
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                //Debug.WriteLine("Error in HookCallbackM(): " + ex.Message);
            }
            return CallNextHookEx(_hookIDM, nCode, wParam, lParam);
        }

        static void Main(string[] args)
        {
            _hookIDK = SetWindowsHookEx(WH_KEYBOARD_LL, _procK, GetModuleHandle("user32"), 0);
            _hookIDM = SetWindowsHookEx(WH_MOUSE_LL, _procM, GetModuleHandle("user32"), 0);
            new Thread(Prog).Start();
            Application.Run();
        }

        private static void Prog()
        {
            Console.ForegroundColor = ConsoleColor.Red;
            Console.WriteLine(@"       ,--,   _,.---._      ,-,--.                    ,--,  ");
            Console.WriteLine(@"      /-\==\,-.' , -  `.  ,-.'-  _\ .--.-. .-.-.     /-\==\ ");
            Console.WriteLine(@"     / '/==/==/_,  ,  - \/==/_ ,_.'/==/ -|/=/  |    / '/==/ ");
            Console.WriteLine(@"    /  /==/==|   .=.     \==\  \   |==| ,||=| -|   /  /==/  ");
            Console.WriteLine(@"   / -/==/|==|_ : ;=:  - |\==\ -\  |==|- | =/  |  / -/==/   ");
            Console.WriteLine(@"  / `/==/ |==| , '='     |_\==\ ,\ |==|,  \/ - | / `/==/    ");
            Console.WriteLine(@" / -/==/   \==\ -    ,_ //==/\/ _ ||==|-   ,   // -/==/     ");
            Console.WriteLine(@"/ `/==/     '.='. -   .' \==\ - , //==/ , _  .'/ `/==/      ");
            Console.WriteLine(@"`--`-`        `--`--''    `--`---' `--`..---'  `--`-`       ");
            Console.WriteLine("             [ osu!Tapspeed-meter for /osu/ ]");
            Console.WriteLine("                   - by DaRealSlimOni -");
            Console.WriteLine("");

            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.Write("[~]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.Write(" Tapkey1: ");
            setkeys = true;
            hk1 = Console.ReadKey(true);
            if (hk1.Key == ConsoleKey.F13)
                Console.WriteLine("LeftMouseButton");
            else if (hk1.Key == ConsoleKey.F14)
                Console.WriteLine("RightMouseButton");
            else
                Console.WriteLine(hk1.Key.ToString());
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.Write("[~]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.Write(" Tapkey2: ");
            hk2 = Console.ReadKey(true);
            if (hk2.Key == ConsoleKey.F13)
                Console.WriteLine("LeftMouseButton");
            else if (hk2.Key == ConsoleKey.F14)
                Console.WriteLine("RightMouseButton");
            else
                Console.WriteLine(hk2.Key.ToString());
            setkeys = false;

            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.Write("[~]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.Write(" Taps: ");
            string line = Console.ReadLine();
            while (!Int32.TryParse(line, out taps))
            {
                Console.ForegroundColor = ConsoleColor.Cyan;
                Console.WriteLine("ERROR! VALUE NOT VALID!");
                Console.Write("[~]");
                Console.ForegroundColor = ConsoleColor.White;
                Console.Write(" Taps: ");
                line = Console.ReadLine();
            }
            if (taps < 10)
            {
                taps = 10;
                Console.SetCursorPosition(0, Console.CursorTop - 1);
                Console.ForegroundColor = ConsoleColor.Cyan;
                Console.Write("[~]");
                Console.ForegroundColor = ConsoleColor.White;
                Console.Write(" Taps: 10         ");
            }

            TapMeter();
        }

        private static void TapMeter()
        {
            taps_count = taps - 1;

            Console.WriteLine("");
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.Write("[~]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine(" Now start hitting keys! ");
            stopwatch.Reset();
            first = true;
            start = true;
            ConsoleKeyInfo key = Console.ReadKey(true);
            while (key.Key != ConsoleKey.F15)
            {
                key = Console.ReadKey(true);
            }
            Cont();
        }

        private static void Cont()
        {
            double t_ms = stopwatch.ElapsedMilliseconds;
            double t_sec = t_ms / 1000;

            Console.ForegroundColor = ConsoleColor.Green;
            Console.Write("         [+]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine(" Time: " + t_sec + "sec");
            Console.ForegroundColor = ConsoleColor.Green;
            Console.Write("         [+]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine(" TapsPerMinute: " + (int)((taps / t_sec) * 60));
            Console.ForegroundColor = ConsoleColor.Green;
            Console.Write("         [+]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine(" maximal osu stream speed (1/4): " + (int)(((taps / t_sec) * 60) / 4) + "bpm");

            Console.WriteLine("");
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.Write("[~]");
            Console.ForegroundColor = ConsoleColor.White;
            Console.Write("Retry? (y/n) ");
            ConsoleKeyInfo key = Console.ReadKey(true);
            while (key.KeyChar != 'y' && key.KeyChar != 'n')
            {
                key = Console.ReadKey(true);
            }
            if (key.KeyChar == 'y')
                TapMeter();
            else
            {
                UnhookWindowsHookEx(_hookIDK);
                UnhookWindowsHookEx(_hookIDM);
                Application.Exit();
            }
        }
    }
}