C_clock.hpp

/*
 * Copyright 2024 Guillaume Guillet
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef _FGE_C_CLOCK_HPP_INCLUDED
#define _FGE_C_CLOCK_HPP_INCLUDED
 
#include <chrono>
 
namespace fge
{
 
class Clock
{
public:
    Clock() :
            g_lastTimePoint(std::chrono::steady_clock::now())
    {}
 
    auto getElapsedTime() const { return std::chrono::steady_clock::now() - this->g_lastTimePoint; }
 
    template<typename TD>
    auto getElapsedTime() const
    {
        return std::chrono::duration_cast<TD>(std::chrono::steady_clock::now() - this->g_lastTimePoint).count();
    }
 
    auto restart()
    {
        auto lastDuration = std::chrono::steady_clock::now() - this->g_lastTimePoint;
        this->g_lastTimePoint = std::chrono::steady_clock::now();
        return lastDuration;
    }
 
    template<typename TD>
    auto restart()
    {
        auto lastDuration =
                std::chrono::duration_cast<TD>(std::chrono::steady_clock::now() - this->g_lastTimePoint).count();
        this->g_lastTimePoint = std::chrono::steady_clock::now();
        return lastDuration;
    }
 
    bool reached(std::chrono::milliseconds const& duration)
    {
        return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::steady_clock::now() -
                                                                     this->g_lastTimePoint) >= duration;
    }
 
private:
    std::chrono::steady_clock::time_point g_lastTimePoint;
};
 
} // namespace fge
 
#endif // _FGE_C_CLOCK_HPP_INCLUDED