Time.h

//Copyright © 2014 SDXFramework
//[License]GNU Affero General Public License, version 3
//[Contact]http://sourceforge.jp/projects/dxframework/
#pragma once
//#include <Multimedia/Color.h>
#include <chrono>

namespace SDX
{
    class Time
    {
    private:
        MONO_STATE(Time)

        double fps;
        std::chrono::system_clock::time_point reset;
        std::chrono::system_clock::time_point fpsCounter;
        std::chrono::system_clock::time_point watch;

        static Time& Single()
        {
            static Time single;
            return single;
        }

    public:
        static void ResetCount()
        {
            Single().reset = std::chrono::system_clock::now();
        }

        static double GetNowCount()
        {
            auto diff = std::chrono::system_clock::now() - Single().reset;
            return (double)std::chrono::duration_cast<std::chrono::microseconds>(diff).count() / 1000;
        }

        static void GetDate(tm *現在時刻)
        {
            time_t timer;

            time(&timer);

            localtime_s(現在時刻, &timer);
        }

        static std::string GetDateString()
        {
            tm time;
            GetDate( &time );
            VariadicStream str = { time.tm_year+1900, "_" , time.tm_mon , "_" , time.tm_mday , "_" , time.tm_hour , "_" , time.tm_min , "_" , time.tm_sec};
            return str.StringS[0];
        }

        static double GetFPS()
        {
            return Single().fps;
        }

        static void ResetFPS()
        {
            Single().fpsCounter = std::chrono::system_clock::now();
        }

        static void CheckFPS()
        {
            auto diff = std::chrono::system_clock::now() - Single().fpsCounter;
            Single().fps = 1000000.0 / (double)std::chrono::duration_cast<std::chrono::microseconds>(diff).count();
            Single().fpsCounter = std::chrono::system_clock::now();
        }

        static void StartWatch()
        {
            Single().watch = std::chrono::system_clock::now();
        }

        static void DrawWatch(const Point &座標, const char* 描画文字列)
        {
            std::string buf = 描画文字列;
            buf += " = ";

            auto diff = std::chrono::system_clock::now() - Single().watch;
            double count = (double)std::chrono::duration_cast<std::chrono::milliseconds>(diff).count();
            Drawing::String(座標, Color(255, 255, 255), { buf, count });
            Single().watch = std::chrono::system_clock::now();
        }
    };
}