BeatButton.h

#pragma once

#include "RotaryEncoder.h"

#define NUM_PRESSES 16


class BeatButton
{
    public:
        BeatButton(const RotaryEncoder& rotaryEncoder) :
            rot(rotaryEncoder), hit(false), swState(true), lastTempoAdjust(0), idxLastPress(0),
            microsPerBeat(500000), tAutoBeat(1) // default to 120 bpm at boot
        {}
        
        void update(long now, long tpf);
        
        bool consumeHit() {
            bool hasHit = hit;
            hit = false;
            return hasHit;
        }
    
    private:
        const RotaryEncoder& rot;
        bool hit;
        bool swState;
        int lastTempoAdjust;
        
        long lastPresses[NUM_PRESSES];
        int idxLastPress;
        
        long microsPerBeat; // delay between hits in microseconds
        long tAutoBeat; // time until next beat hit
        
        void doPress(long now);
    
};