#include <FastLED.h>

#define DATA_PIN    3                //set your leds datapin   change to 32 for m5 atom lite
#define LED_TYPE    WS2812B          //leds type
#define COLOR_ORDER GRB  
//++++++++++++++++++++++++++++++++

#define LED_COLS 15       // resolution of cilindrical lookup table
#define LED_ROWS 16
#define NUM_LEDS 240 
//+++++++++++++++++++

#define COLOR_ORDER GRB
 
// LED brightness
#define BRIGHTNESS 255

 


//+++++++++++++++++++++++++++++++
// Params for width and height

//CRGB leds[ NUM_LEDS ];







CRGB leds [NUM_LEDS+1];

//++++++++++++++++++++++++++++++++++

//Lotus
//Stepko and Sutaburosu
//14/04/23
#define petals 5
bool setupm = 1;
const uint8_t C_X = LED_COLS / 2;
const uint8_t C_Y = LED_ROWS / 2;
const uint8_t mapp = 255 / LED_COLS;
struct{
  uint8_t angle;
  uint8_t radius;
} rMap[LED_COLS][LED_ROWS];

void setup() {

    FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS)

 .setCorrection( TypicalLEDStrip );
FastLED.clear();
}




void loop() {


LEDS.show();
  if (setupm) {
    setupm = 0;
    for (int8_t x = -C_X; x < C_X + (LED_COLS % 2); x++) {
      for (int8_t y = -C_Y; y < C_Y + (LED_ROWS % 2); y++) {
        rMap[x + C_X][y + C_Y].angle = 128 * (atan2(y, x) / PI);
        rMap[x + C_X][y + C_Y].radius = hypot(x, y) * mapp; //thanks Sutaburosu
      }
    }
  }

  static byte speed = 2;
  static uint32_t t;
  t += speed;
  for (uint8_t x = 0; x < LED_COLS; x++) {
    for (uint8_t y = 0; y < LED_ROWS; y++) {
      byte angle = rMap[x][y].angle;
      byte radius = rMap[x][y].radius;
      leds[XY(x, y)] = CHSV(248,181,sin8(t-radius+sin8(t + angle*petals)/5));

    }
  }
  delay(20);
}


//static byte setup = 1;

uint16_t XY (uint8_t x, uint8_t y) { return (y * LED_COLS + x);}	

//++++++++++++++++++++++++++++++++++++++