TapTemo.h

#pragma once

class TapTempo
{
public:
	void tap() {
		float time = ofGetSystemTime();
		interval_ = mark_-time;
		mark_ = time;
	}
	float getPosition() {
		return ofWrap(ofMap(ofGetSystemTime(), mark_, mark_+interval_, 0, 1),0,1);
	}
private:
	float mark_=0;
	float interval_=0;
};

class SecondsTap : public TapTempo
{
public:
	void update() {
		int sec = ofGetSeconds();
		if(prev_sec_ != sec) {
			tap();
			prev_sec_ = sec;
		}
	}
private:
	int prev_sec_ = 0;
};