#pragma once

#include <ctime>


class Timeline
{
public:
    Timeline(std::time_t start, std::time_t end);
    std::time_t timestamp() const;
    double current() const;
    double progress() const;
    double move(double dt);
private:
    const std::time_t m_start;
    const double m_end;
    double m_current;
};