61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
//
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// Created by Wouter Groeneveld on 06/12/18.
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//
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#include <libgba-bitmap-engine/timer.h>
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#include <sstream>
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void Timer::onvblank() {
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if(!active) return;
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// each VBlank occurs every 280806 cycles (CYCLES_PER_BLANK), each cycle is 59.59ns
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// So, each VBlank occurs every 16.73322954 miliseconds or 16733.22954 microseconds
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// So, each second is 59,76132686219041 vblanks.
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// to avoid any big rounding errors, divisions and modulos, estimate!
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msecs += 16;
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microsecs += 733;
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if(microsecs >= 1000) {
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msecs++;
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microsecs -= 1000;
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}
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if(msecs >= 1000) {
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secs++;
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msecs -= 1000;
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}
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if(secs >= 60) {
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minutes++;
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secs -= 60;
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}
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if(minutes >= 60) {
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hours++;
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minutes -= 60;
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}
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}
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int Timer::getTotalMsecs() {
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return msecs + (hours * 60 * 60 + minutes * 60 + secs) * 1000;
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}
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std::string Timer::to_string() {
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std::ostringstream stringStream;
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stringStream << *this;
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return stringStream.str();
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}
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std::ostream& operator<<(std::ostream &os, Timer &timer) {
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os << timer.hours << "h:" << timer.minutes << "m:" << timer.secs << "s:" << timer.msecs;
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return os;
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}
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void Timer::reset() {
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microsecs = msecs = secs = minutes = hours = 0;
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}
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void Timer::start() {
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active = true;
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}
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void Timer::stop() {
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active = false;
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} |