// ================================= ЭФФЕКТЫ ====================================

// --------------------------------- конфетти ------------------------------------
void sparklesRoutine() {
  for (byte i = 0; i < modes[0].scale; i++) {
    byte x = random(0, WIDTH);
    byte y = random(0, HEIGHT);
    if (getPixColorXY(x, y) == 0)
      leds[getPixelNumber(x, y)] = CHSV(random(0, 255), 255, 255);
  }
  fader(70);
}

// функция плавного угасания цвета для всех пикселей
void fader(byte step) {
  for (byte i = 0; i < WIDTH; i++) {
    for (byte j = 0; j < HEIGHT; j++) {
      fadePixel(i, j, step);
    }
  }
}
void fadePixel(byte i, byte j, byte step) {     // новый фейдер
  int pixelNum = getPixelNumber(i, j);
  if (getPixColor(pixelNum) == 0) return;

  if (leds[pixelNum].r >= 30 ||
      leds[pixelNum].g >= 30 ||
      leds[pixelNum].b >= 30) {
    leds[pixelNum].fadeToBlackBy(step);
  } else {
    leds[pixelNum] = 0;
  }
}

// -------------------------------------- огонь ---------------------------------------------
// эффект "огонь"
#define SPARKLES 1        // вылетающие угольки вкл выкл
unsigned char line[WIDTH];
int pcnt = 0;

//these values are substracetd from the generated values to give a shape to the animation
const unsigned char valueMask[8][16] PROGMEM = {
  {32 , 0  , 0  , 0  , 0  , 0  , 0  , 32 , 32 , 0  , 0  , 0  , 0  , 0  , 0  , 32 },
  {64 , 0  , 0  , 0  , 0  , 0  , 0  , 64 , 64 , 0  , 0  , 0  , 0  , 0  , 0  , 64 },
  {96 , 32 , 0  , 0  , 0  , 0  , 32 , 96 , 96 , 32 , 0  , 0  , 0  , 0  , 32 , 96 },
  {128, 64 , 32 , 0  , 0  , 32 , 64 , 128, 128, 64 , 32 , 0  , 0  , 32 , 64 , 128},
  {160, 96 , 64 , 32 , 32 , 64 , 96 , 160, 160, 96 , 64 , 32 , 32 , 64 , 96 , 160},
  {192, 128, 96 , 64 , 64 , 96 , 128, 192, 192, 128, 96 , 64 , 64 , 96 , 128, 192},
  {255, 160, 128, 96 , 96 , 128, 160, 255, 255, 160, 128, 96 , 96 , 128, 160, 255},
  {255, 192, 160, 128, 128, 160, 192, 255, 255, 192, 160, 128, 128, 160, 192, 255}
};

//these are the hues for the fire,
//should be between 0 (red) to about 25 (yellow)
const unsigned char hueMask[8][16] PROGMEM = {
  {1 , 11, 19, 25, 25, 22, 11, 1 , 1 , 11, 19, 25, 25, 22, 11, 1 },
  {1 , 8 , 13, 19, 25, 19, 8 , 1 , 1 , 8 , 13, 19, 25, 19, 8 , 1 },
  {1 , 8 , 13, 16, 19, 16, 8 , 1 , 1 , 8 , 13, 16, 19, 16, 8 , 1 },
  {1 , 5 , 11, 13, 13, 13, 5 , 1 , 1 , 5 , 11, 13, 13, 13, 5 , 1 },
  {1 , 5 , 11, 11, 11, 11, 5 , 1 , 1 , 5 , 11, 11, 11, 11, 5 , 1 },
  {0 , 1 , 5 , 8 , 8 , 5 , 1 , 0 , 0 , 1 , 5 , 8 , 8 , 5 , 1 , 0 },
  {0 , 0 , 1 , 5 , 5 , 1 , 0 , 0 , 0 , 0 , 1 , 5 , 5 , 1 , 0 , 0 },
  {0 , 0 , 0 , 1 , 1 , 0 , 0 , 0 , 0 , 0 , 0 , 1 , 1 , 0 , 0 , 0 }
};

void fireRoutine() {
  if (loadingFlag) {
    loadingFlag = false;
    //FastLED.clear();
    generateLine();    
  }
  if (pcnt >= 100) {
    shiftUp();
    generateLine();
    pcnt = 0;
  }
  drawFrame(pcnt);
  pcnt += 30;
}

// Randomly generate the next line (matrix row)

void generateLine() {
  for (uint8_t x = 0; x < WIDTH; x++) {
    line[x] = random(64, 255);
  }
}

void shiftUp() {
  for (uint8_t y = HEIGHT - 1; y > 0; y--) {
    for (uint8_t x = 0; x < WIDTH; x++) {
      uint8_t newX = x;
      if (x > 15) newX = x - 15;
      if (y > 7) continue;
      matrixValue[y][newX] = matrixValue[y - 1][newX];
    }
  }

  for (uint8_t x = 0; x < WIDTH; x++) {
    uint8_t newX = x;
    if (x > 15) newX = x - 15;
    matrixValue[0][newX] = line[newX];
  }
}

// draw a frame, interpolating between 2 "key frames"
// @param pcnt percentage of interpolation

void drawFrame(int pcnt) {
  int nextv;

  //each row interpolates with the one before it
  for (unsigned char y = HEIGHT - 1; y > 0; y--) {
    for (unsigned char x = 0; x < WIDTH; x++) {
      uint8_t newX = x;
      if (x > 15) newX = x - 15;
      if (y < 8) {
        nextv =
          (((100.0 - pcnt) * matrixValue[y][newX]
            + pcnt * matrixValue[y - 1][newX]) / 100.0)
          - pgm_read_byte(&(valueMask[y][newX]));

        CRGB color = CHSV(
                       modes[1].scale * 2.5 + pgm_read_byte(&(hueMask[y][newX])), // H
                       255, // S
                       (uint8_t)max(0, nextv) // V
                     );

        leds[getPixelNumber(x, y)] = color;
      } else if (y == 8 && SPARKLES) {
        if (random(0, 20) == 0 && getPixColorXY(x, y - 1) != 0) drawPixelXY(x, y, getPixColorXY(x, y - 1));
        else drawPixelXY(x, y, 0);
      } else if (SPARKLES) {

        // старая версия для яркости
        if (getPixColorXY(x, y - 1) > 0)
          drawPixelXY(x, y, getPixColorXY(x, y - 1));
        else drawPixelXY(x, y, 0);

      }
    }
  }

  //first row interpolates with the "next" line
  for (unsigned char x = 0; x < WIDTH; x++) {
    uint8_t newX = x;
    if (x > 15) newX = x - 15;
    CRGB color = CHSV(
                   modes[1].scale * 2.5 + pgm_read_byte(&(hueMask[0][newX])), // H
                   255,           // S
                   (uint8_t)(((100.0 - pcnt) * matrixValue[0][newX] + pcnt * line[newX]) / 100.0) // V
                 );
    leds[getPixelNumber(newX, 0)] = color;
  }
}

byte hue;
// ---------------------------------------- радуга ------------------------------------------
void rainbowVertical() {
  hue += 2;
  for (byte j = 0; j < HEIGHT; j++) {
    CHSV thisColor = CHSV((byte)(hue + j * modes[2].scale), 255, 255);
    for (byte i = 0; i < WIDTH; i++)      
      drawPixelXY(i, j, thisColor);
  }
}
void rainbowHorizontal() {
  hue += 2;
  for (byte i = 0; i < WIDTH; i++) {
    CHSV thisColor = CHSV((byte)(hue + i * modes[3].scale), 255, 255);
    for (byte j = 0; j < HEIGHT; j++)      
      drawPixelXY(i, j, thisColor);   //leds[getPixelNumber(i, j)] = thisColor;
  }
}

// ---------------------------------------- ЦВЕТА ------------------------------------------
void colorsRoutine() {
  hue += modes[4].scale;
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CHSV(hue, 255, 255);
  }
}