#ifndef FLASHONCE_H
#define FLASHONCE_H


#include "ESP8266lib/ext/led/WS2812B.h"

/** fade between two colors */
class FadeOnce {

    Color c1;
    Color c2;
	int fadeOut_ticks = 0;
    int ticksLeft = 0;

public:

	/** ctor */
    FadeOnce() {
		;
	}

    void setColor(Color c1, Color c2) {
        this->c1 = c1;
        this->c2 = c2;
	}

    void setFadeDuration(int duration_ticks) {
		this->fadeOut_ticks = duration_ticks;
        this->ticksLeft = duration_ticks;
	}

	void update() {
        if (ticksLeft > 0) {--ticksLeft;}	// fade-out
	}

	Color getCurrent() const {
        const int percent = (ticksLeft * 100 / fadeOut_ticks);
        return Color::mix(c1, c2, percent);
	}

};


#endif // FLASHONCE_H