// This #include statement was automatically added by the Particle IDE.
#include "FastLED/FastLED.h"
FASTLED_USING_NAMESPACE;

const uint8_t kMatrixWidth = 12;
const uint8_t kMatrixHeight = 23;

#define MAX_DIMENSION ((kMatrixWidth>kMatrixHeight) ? kMatrixWidth : kMatrixHeight)
#define NUM_LEDS (kMatrixWidth * kMatrixHeight)

const bool    kMatrixSerpentineLayout = true;

uint16_t XY( uint8_t x, uint8_t y)
{
  uint16_t i;

  if( kMatrixSerpentineLayout == false) {
    i = (y * kMatrixWidth) + x;
  }

  if( kMatrixSerpentineLayout == true) {
    if( y & 0x01) {
      uint8_t reverseX = (kMatrixWidth - 1) - x;
      i = (y * kMatrixWidth) + reverseX;
    } else {
      i = (y * kMatrixWidth) + x;
    }
  }

  return i;
}

CRGB leds[kMatrixWidth * kMatrixHeight];

static uint16_t x;
static uint16_t y;
static uint16_t z;

uint16_t speed = 3;
uint16_t scale = 311;
uint8_t noise[MAX_DIMENSION][MAX_DIMENSION];

void setup() {

  FastLED.addLeds<WS2812B,23,RGB>(leds,NUM_LEDS,0);
  FastLED.setBrightness(20);

  x = random16();
  y = random16();
  z = random16();
}

void fillnoise8() {
  for(int i = 0; i < MAX_DIMENSION; i++) {
    int ioffset = scale * i;
    for(int j = 0; j < MAX_DIMENSION; j++) {
      int joffset = scale * j;
      noise[i][j] = inoise8(x + ioffset,y + joffset,z);
    }
  }
  z += speed;
}

void loop() {
  static uint8_t ihue=0;
  fillnoise8();
  for(int i = 0; i < kMatrixWidth; i++) {
    for(int j = 0; j < kMatrixHeight; j++) {
      leds[XY(i,j)] = CHSV(noise[j][i],255,noise[i][j]);
    }
  }
  ihue+=1;

  LEDS.show();
  delay(10);
}