#ifndef SPECTRE_FPS_COUNTER_H
#define SPECTRE_FPS_COUNTER_H

// Simple FPS counter.

namespace sp {

class FPSCounter
{
public :
	FPSCounter();

	// Add a frame to the counter.
	// Should be called whenever a frame has been rendered.
	void addFrame();

	float getFPS() const;

	// Set the update rate (in seconds).
	// How often the FPS should be sampled and calculated.
	void setUpdateRate(unsigned int seconds);

	// Update the internal time measurment.
	bool update();

	// Reset the frame time
	void reset();

private :

	// Frame counter.
	unsigned int m_count;

	// time (in ms)
	unsigned int m_time;

	// Update rate (in ms)
	unsigned int m_updateRate;

	// Calculated fps.
	float m_fps;
};

} // namespace sp

#endif /* SPECTRE_FPS_COUNTER_H */