34 lines
769 B
C++
34 lines
769 B
C++
#ifndef FPSDISPLAYTASK_HPP
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#define FPSDISPLAYTASK_HPP
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#include "photon.hpp"
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#include <boost/lexical_cast.hpp>
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// used to measure FPS and display it in the title bar
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class FPSDisplayTask : public photon::Task
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{
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public:
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FPSDisplayTask() :
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Task("FPSDisplayTask", 1000000), // extremely low priority
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app(photon::AppCore::getInstance()),
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lastUpdate(0)
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{ }
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void update()
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{
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// update (at most) once a second
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if(app.getTime() - lastUpdate > 1.0)
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{
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app.setTitle("FPS: " +
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boost::lexical_cast<std::string>(app.getFramerate()) );
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lastUpdate = app.getTime();
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}
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}
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private:
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photon::AppCore& app;
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double lastUpdate;
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};
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#endif //FPSDISPLAYTASK_HPP
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