bottleye/BottlEye/spinner.hpp
2020-07-07 15:42:10 +02:00

77 lines
1.6 KiB
C++

#pragma once
#include "loggr.hpp"
#include <chrono>
class spinner
{
public:
spinner(loggr* new_logger) : m_logger(new_logger) { }
static constexpr std::uint8_t CHARACTER_SEQUENCE[] =
{
'|', '/', '-', '\\'
};
inline void start()
{
if (this->m_active)
{
this->m_logger->log_error("Cannot initialise spinner object more than once!");
return;
}
this->m_active = true;
}
inline void update()
{
if (!this->m_active)
{
this->m_logger->log_error("Cannot initialise spinner object without initialization!");
return;
}
// GET TIME SINCE LAST UPDATE
using clock_t = std::chrono::high_resolution_clock;
const auto time = clock_t::now();
const auto time_delta = time - m_last_update_time;
const auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(time_delta);
// ONLY UPDATE SPINNER EVERY x MS
constexpr auto update_time = 150;
if (duration.count() <= update_time)
{
return;
}
// UPDATE THE SPINNER CHARACTER
this->m_logger->clear_line();
this->m_logger->log_raw("[{}]", static_cast<char>(spinner::CHARACTER_SEQUENCE[this->m_seq_index]));
// INCREMENT AND WRAP
this->m_seq_index++;
this->m_seq_index %= sizeof(spinner::CHARACTER_SEQUENCE);
this->m_last_update_time = time;
}
inline void stop()
{
if (!this->m_active)
{
this->m_logger->log_error("Spinner is not active!");
return;
}
this->m_logger->clear_line();
this->m_active = false;
}
private:
const loggr* m_logger;
bool m_active = false;
std::size_t m_seq_index = 0;
std::chrono::steady_clock::time_point m_last_update_time;
};