#include <FastLED.h>
#include <neotimer.h>
#define COOLING 55
#define SPARKING 120
#define LED_PIN 2
#define COLOR_ORDER GRB
#define CHIPSET WS2812B
#define BRIGHTNESS 160
#define NUM_LEDS 35

int Brennweite = 35;

Neotimer Time1 = Neotimer(4000);
Neotimer Time2 = Neotimer(7000);

#define FRAMES_PER_SECOND 60

bool gReverseDirection = true;
CRGBPalette16 gPal;
CRGBPalette16 gPal2;
CRGB leds[NUM_LEDS];

void setup()
{
    //Serial.begin(9600);
    //delay(3000); // sanity delay
    FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
    FastLED.setBrightness(BRIGHTNESS );
    gPal = CRGBPalette16( CRGB::Black, CRGB::Blue, CRGB::Aqua, CRGB::White);
    Time1.start();
    Time2.start();
}

void loop()
{
    random16_add_entropy( random());

    Fire2012(); // run simulation frame

    FastLED.show(); // display this frame
    FastLED.delay(1000/ FRAMES_PER_SECOND);

    if(Time1.done())
        {
            Fadeout (Brennweite, 1);
            Time1.stop();
        }
}

void Fire2012()
{
    static byte heat[NUM_LEDS];

    for( int i = 0; i < Brennweite; i++)
    {
    heat[i] = qsub8( heat[i], random8(0, ((COOLING * 10) / Brennweite) + 2));
    }

    for( int k= Brennweite - 1; k >= 2; k--)
    {
        heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2] ) / 3;
    }

    if( random8() < SPARKING )
    {
        int y = random8(7);
        heat[y] = qadd8( heat[y], random8(160,255) );
    }

    for( int j = 0; j < Brennweite; j++)
    {
        byte colorindex = scale8( heat[j], 240);
        CRGB color = ColorFromPalette( gPal, colorindex);
        int pixelnumber;

        if( gReverseDirection )
        {
            pixelnumber = (Brennweite-1) - j;
        }
        else
        {
            pixelnumber = j;
        }

        leds[pixelnumber] = color;
    }
}

void Fadeout(int Brennweite, int fadespeed)
{
    for (int a = Brennweite; a =1; Brennweite--)
    {
        Brennweite = Brennweite - fadespeed;
    }
}